binutils-gdb/gdb/x86-nat.c

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Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
/* Native-dependent code for x86 (i386 and x86-64).
Copyright (C) 2001-2019 Free Software Foundation, Inc.
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
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This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
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(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
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#include "defs.h"
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
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#include "x86-nat.h"
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
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#include "gdbcmd.h"
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
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#include "inferior.h"
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
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Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
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/* Support for hardware watchpoints and breakpoints using the x86
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
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debug registers.
This provides several functions for inserting and removing
hardware-assisted breakpoints and watchpoints, testing if one or
more of the watchpoints triggered and at what address, checking
whether a given region can be watched, etc.
The functions below implement debug registers sharing by reference
counts, and allow to watch regions up to 16 bytes long. */
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
/* Low-level function vector. */
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_dr_low_type x86_dr_low;
Remove all i386 debug register low level macros in config nm files. (I386_DR_LOW_SET_ADDR, I386_DR_LOW_RESET_ADDR): Remove. (I386_DR_LOW_GET_STATUS, I386_DR_LOW_SET_CONTROL): Remove. (I386_USE_GENERIC_WATCHPOIINTS): Remove. * i386-nat.h: New file (adapted from config/i386/nm-i386.h). (struct i386_dr_low_type): New type. (i386_dr_low): New global variable. * i386-nat.c (TARGET_HAS_DR_LEN_8): Update macro. (i386_insert_aligned_watchpoint): Replace i386 dr low macros by i386_dr_low struct variable fields. (i386_remove_aligned_watchpoint): Likewise. (i386_stopped_data_address): Likewise. (i386_stopped_by_hwbp): Likewise. (show_debug_regs_command_added): New static variable. (add_show_debug_regs_command): New static function. (i386_use_watchpoints): Call add_show_debug_regs_command if not done. (i386_set_debug_register_length): New function. (_initialize_i386_nat): Delete. * amd64-linux-nat.c: Include "i386-nat.h". (amd64_linux_dr_set_control): Change to static. (amd64_linux_dr_get_status): Change to static. (amd64_linux_dr_set_addr,amd64_linux_dr_reset_addr): Likewise. (_initialize_amd64_linux_nat): Set i386_dr_low variable fields. * go32-nat.c: Include "i386-nat.h". (go32_set_addr): Change to static. (go32_set_dr7): Change to static. Change arg type to unisgned long. (go32_get_dr6): Change to static. Change return type to unisnged long. (init_go32_ops): Set i386_dr_low variable fields. * i386-linux-nat.c: Include "i386-nat.h". (i386_linux_dr_set_control, i386_linux_dr_get_status): Change to static. (i386_linux_dr_set_addr, i386_linux_dr_reset_addr): Idem. (_initialize_i386_linux_nat): Set i386_dr_low variable fields. * i386bsd-nat.h: Declare functions used for i386_dr_low fields in i386fbsd-nat.c. * i386fbsd-nat.c: Include "i386-nat.h". (_initialize_i386fbsd_nat): Set i386_dr_low variable fields. * windows-nat.c: Include "i386-nat.h". (cygwin_set_dr, cygwin_get_dr6, cygwin_set_dr7): Add prototypes. Change to static. (cygwin_get_dr6): Change return type to unisnged long. (cygwin_set_dr7): Change arg type to unisgned long. (init_windows_ops): Set i386_dr_low function fields. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Call i386_set_debug_register_length. * i386-windows-nat.c (_initialize_i386_windows_nat): Likewise. * config/i386/nm-cygwin.h: Remove all I386_* macros. * config/i386/nm-cygwin64.h: Likewise. * config/i386/nm-fbsd.h: Likewise. * config/i386/nm-linux.h: Likewise. * config/i386/nm-i386.h: Remove completely. * config/i386/nm-go32.h: Remove completely. * config/i386/nm-linux64.h: Remove completely. * config/i386/go32.mh (NAT_FILE): Remove entry. * config/i386/linux64.h (NAT_FILE): Change to config/nm-linux.h.
2009-05-14 11:37:00 +02:00
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* Per-process data. We don't bind this to a per-inferior registry
because of targets like x86 GNU/Linux that need to keep track of
processes that aren't bound to any inferior (e.g., fork children,
checkpoints). */
2011-07-22 Pedro Alves <pedro@codesourcery.com> gdb/testsuite/ * gdb.arch/i386-dr3-watch.exp: Test that the i386 watchpoints backend doesn't leave used debug registers behind. gdb/gdbserver/ * i386-low.c (i386_insert_aligned_watchpoint): Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Ditto. (i386_handle_nonaligned_watchpoint): Return immediate on fail to fit part of the watchpoint in the debug registers. (i386_update_inferior_debug_regs): New. (i386_low_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_low_remove_watchpoint): Ditto. gdb/ * i386-nat.c (I386_DR_VACANT, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): Add state parameter and adjust. (dr_mirror, dr_status_mirror, dr_control_mirror): Delete. (struct i386_debug_reg_state): New. (i386_init_dregs): New. (dr_mirror): New. (i386_cleanup_dregs): Use i386_init_dregs. (i386_show_dr): Add state parameter and adjust. (i386_insert_aligned_watchpoint): Ditto. Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Likewise. (i386_handle_nonaligned_watchpoint): Add state parameter and adjust. (i386_update_inferior_debug_regs): New. (i386_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_remove_watchpoint): Ditto. (i386_region_ok_for_watchpoint): Adjust. (i386_stopped_data_address): Adjust. (i386_insert_hw_breakpoint): Adjust. (i386_remove_hw_breakpoint): Adjust.
2011-07-22 18:58:32 +02:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_process_info
2011-07-22 Pedro Alves <pedro@codesourcery.com> gdb/testsuite/ * gdb.arch/i386-dr3-watch.exp: Test that the i386 watchpoints backend doesn't leave used debug registers behind. gdb/gdbserver/ * i386-low.c (i386_insert_aligned_watchpoint): Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Ditto. (i386_handle_nonaligned_watchpoint): Return immediate on fail to fit part of the watchpoint in the debug registers. (i386_update_inferior_debug_regs): New. (i386_low_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_low_remove_watchpoint): Ditto. gdb/ * i386-nat.c (I386_DR_VACANT, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): Add state parameter and adjust. (dr_mirror, dr_status_mirror, dr_control_mirror): Delete. (struct i386_debug_reg_state): New. (i386_init_dregs): New. (dr_mirror): New. (i386_cleanup_dregs): Use i386_init_dregs. (i386_show_dr): Add state parameter and adjust. (i386_insert_aligned_watchpoint): Ditto. Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Likewise. (i386_handle_nonaligned_watchpoint): Add state parameter and adjust. (i386_update_inferior_debug_regs): New. (i386_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_remove_watchpoint): Ditto. (i386_region_ok_for_watchpoint): Adjust. (i386_stopped_data_address): Adjust. (i386_insert_hw_breakpoint): Adjust. (i386_remove_hw_breakpoint): Adjust.
2011-07-22 18:58:32 +02:00
{
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* Linked list. */
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_process_info *next;
2011-07-22 Pedro Alves <pedro@codesourcery.com> gdb/testsuite/ * gdb.arch/i386-dr3-watch.exp: Test that the i386 watchpoints backend doesn't leave used debug registers behind. gdb/gdbserver/ * i386-low.c (i386_insert_aligned_watchpoint): Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Ditto. (i386_handle_nonaligned_watchpoint): Return immediate on fail to fit part of the watchpoint in the debug registers. (i386_update_inferior_debug_regs): New. (i386_low_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_low_remove_watchpoint): Ditto. gdb/ * i386-nat.c (I386_DR_VACANT, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): Add state parameter and adjust. (dr_mirror, dr_status_mirror, dr_control_mirror): Delete. (struct i386_debug_reg_state): New. (i386_init_dregs): New. (dr_mirror): New. (i386_cleanup_dregs): Use i386_init_dregs. (i386_show_dr): Add state parameter and adjust. (i386_insert_aligned_watchpoint): Ditto. Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Likewise. (i386_handle_nonaligned_watchpoint): Add state parameter and adjust. (i386_update_inferior_debug_regs): New. (i386_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_remove_watchpoint): Ditto. (i386_region_ok_for_watchpoint): Adjust. (i386_stopped_data_address): Adjust. (i386_insert_hw_breakpoint): Adjust. (i386_remove_hw_breakpoint): Adjust.
2011-07-22 18:58:32 +02:00
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* The process identifier. */
pid_t pid;
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
/* Copy of x86 hardware debug registers. */
struct x86_debug_reg_state state;
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
};
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
static struct x86_process_info *x86_process_list = NULL;
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* Find process data for process PID. */
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
static struct x86_process_info *
x86_find_process_pid (pid_t pid)
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_process_info *proc;
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
for (proc = x86_process_list; proc; proc = proc->next)
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
if (proc->pid == pid)
return proc;
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
return NULL;
}
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* Add process data for process PID. Returns newly allocated info
object. */
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
static struct x86_process_info *
x86_add_process (pid_t pid)
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
{
Replace some xmalloc-family functions with XNEW-family ones This patch is part of the make-gdb-buildable-in-C++ effort. The idea is to change some calls to the xmalloc family of functions to calls to the equivalents in the XNEW family. This avoids adding an explicit cast, so it keeps the code a bit more readable. Some of them also map relatively well to a C++ equivalent (XNEW (struct foo) -> new foo), so it will be possible to do scripted replacements if needed. I only changed calls that were obviously allocating memory for one or multiple "objects". Allocation of variable sizes (such as strings or buffer handling) will be for later (and won't use XNEW). - xmalloc (sizeof (struct foo)) -> XNEW (struct foo) - xmalloc (num * sizeof (struct foo)) -> XNEWVEC (struct foo, num) - xcalloc (1, sizeof (struct foo)) -> XCNEW (struct foo) - xcalloc (num, sizeof (struct foo)) -> XCNEWVEC (struct foo, num) - xrealloc (p, num * sizeof (struct foo) -> XRESIZEVEC (struct foo, p, num) - obstack_alloc (ob, sizeof (struct foo)) -> XOBNEW (ob, struct foo) - obstack_alloc (ob, num * sizeof (struct foo)) -> XOBNEWVEC (ob, struct foo, num) - alloca (sizeof (struct foo)) -> XALLOCA (struct foo) - alloca (num * sizeof (struct foo)) -> XALLOCAVEC (struct foo, num) Some instances of xmalloc followed by memset to zero the buffer were replaced by XCNEW or XCNEWVEC. I regtested on x86-64, Ubuntu 14.04, but the patch touches many architecture-specific files. For those I'll have to rely on the buildbot or people complaining that I broke their gdb. gdb/ChangeLog: * aarch64-linux-nat.c (aarch64_add_process): Likewise. * aarch64-tdep.c (aarch64_gdbarch_init): Likewise. * ada-exp.y (write_ambiguous_var): Likewise. * ada-lang.c (resolve_subexp): Likewise. (user_select_syms): Likewise. (assign_aggregate): Likewise. (ada_evaluate_subexp): Likewise. (cache_symbol): Likewise. * addrmap.c (allocate_key): Likewise. (addrmap_create_mutable): Likewise. * aix-thread.c (sync_threadlists): Likewise. * alpha-tdep.c (alpha_push_dummy_call): Likewise. (alpha_gdbarch_init): Likewise. * amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise. * arm-linux-nat.c (arm_linux_add_process): Likewise. * arm-linux-tdep.c (arm_linux_displaced_step_copy_insn): Likewise. * arm-tdep.c (push_stack_item): Likewise. (arm_displaced_step_copy_insn): Likewise. (arm_gdbarch_init): Likewise. (_initialize_arm_tdep): Likewise. * avr-tdep.c (push_stack_item): Likewise. * ax-general.c (new_agent_expr): Likewise. * block.c (block_initialize_namespace): Likewise. * breakpoint.c (alloc_counted_command_line): Likewise. (update_dprintf_command_list): Likewise. (parse_breakpoint_sals): Likewise. (decode_static_tracepoint_spec): Likewise. (until_break_command): Likewise. (clear_command): Likewise. (update_global_location_list): Likewise. (get_breakpoint_objfile_data) Likewise. * btrace.c (ftrace_new_function): Likewise. (btrace_set_insn_history): Likewise. (btrace_set_call_history): Likewise. * buildsym.c (add_symbol_to_list): Likewise. (record_pending_block): Likewise. (start_subfile): Likewise. (start_buildsym_compunit): Likewise. (push_subfile): Likewise. (end_symtab_get_static_block): Likewise. (buildsym_init): Likewise. * cli/cli-cmds.c (source_command): Likewise. * cli/cli-decode.c (add_cmd): Likewise. * cli/cli-script.c (build_command_line): Likewise. (setup_user_args): Likewise. (realloc_body_list): Likewise. (process_next_line): Likewise. (copy_command_lines): Likewise. * cli/cli-setshow.c (do_set_command): Likewise. * coff-pe-read.c (read_pe_exported_syms): Likewise. * coffread.c (coff_locate_sections): Likewise. (coff_symtab_read): Likewise. (coff_read_struct_type): Likewise. * common/cleanups.c (make_my_cleanup2): Likewise. * common/common-exceptions.c (throw_it): Likewise. * common/filestuff.c (make_cleanup_close): Likewise. * common/format.c (parse_format_string): Likewise. * common/queue.h (DEFINE_QUEUE_P): Likewise. * compile/compile-object-load.c (munmap_list_add): Likewise. (compile_object_load): Likewise. * compile/compile-object-run.c (compile_object_run): Likewise. * compile/compile.c (append_args): Likewise. * corefile.c (specify_exec_file_hook): Likewise. * cp-support.c (make_symbol_overload_list): Likewise. * cris-tdep.c (push_stack_item): Likewise. (cris_gdbarch_init): Likewise. * ctf.c (ctf_trace_file_writer_new): Likewise. * dbxread.c (init_header_files): Likewise. (add_new_header_file): Likewise. (init_bincl_list): Likewise. (dbx_end_psymtab): Likewise. (start_psymtab): Likewise. (dbx_end_psymtab): Likewise. * dcache.c (dcache_init): Likewise. * dictionary.c (dict_create_hashed): Likewise. (dict_create_hashed_expandable): Likewise. (dict_create_linear): Likewise. (dict_create_linear_expandable): Likewise. * dtrace-probe.c (dtrace_process_dof_probe): Likewise. * dummy-frame.c (register_dummy_frame_dtor): Likewise. * dwarf2-frame-tailcall.c (cache_new_ref1): Likewise. * dwarf2-frame.c (dwarf2_build_frame_info): Likewise. (decode_frame_entry_1): Likewise. * dwarf2expr.c (new_dwarf_expr_context): Likewise. * dwarf2loc.c (dwarf2_compile_expr_to_ax): Likewise. * dwarf2read.c (dwarf2_has_info): Likewise. (create_signatured_type_table_from_index): Likewise. (dwarf2_read_index): Likewise. (dw2_get_file_names_reader): Likewise. (create_all_type_units): Likewise. (read_cutu_die_from_dwo): Likewise. (init_tu_and_read_dwo_dies): Likewise. (init_cutu_and_read_dies): Likewise. (create_all_comp_units): Likewise. (queue_comp_unit): Likewise. (inherit_abstract_dies): Likewise. (read_call_site_scope): Likewise. (dwarf2_add_field): Likewise. (dwarf2_add_typedef): Likewise. (dwarf2_add_member_fn): Likewise. (attr_to_dynamic_prop): Likewise. (abbrev_table_alloc_abbrev): Likewise. (abbrev_table_read_table): Likewise. (add_include_dir): Likewise. (add_file_name): Likewise. (dwarf_decode_line_header): Likewise. (dwarf2_const_value_attr): Likewise. (dwarf_alloc_block): Likewise. (parse_macro_definition): Likewise. (set_die_type): Likewise. (write_psymtabs_to_index): Likewise. (create_cus_from_index): Likewise. (dwarf2_create_include_psymtab): Likewise. (process_psymtab_comp_unit_reader): Likewise. (build_type_psymtab_dependencies): Likewise. (read_comp_units_from_section): Likewise. (compute_compunit_symtab_includes): Likewise. (create_dwo_unit_in_dwp_v1): Likewise. (create_dwo_unit_in_dwp_v2): Likewise. (read_func_scope): Likewise. (process_structure_scope): Likewise. (mark_common_block_symbol_computed): Likewise. (load_partial_dies): Likewise. (dwarf2_symbol_mark_computed): Likewise. * elfread.c (elf_symfile_segments): Likewise. (elf_read_minimal_symbols): Likewise. * environ.c (make_environ): Likewise. * eval.c (evaluate_subexp_standard): Likewise. * event-loop.c (create_file_handler): Likewise. (create_async_signal_handler): Likewise. (create_async_event_handler): Likewise. (create_timer): Likewise. * exec.c (build_section_table): Likewise. * fbsd-nat.c (fbsd_remember_child): Likewise. * fork-child.c (fork_inferior): Likewise. * frv-tdep.c (new_variant): Likewise. * gdbarch.sh (gdbarch_alloc): Likewise. (append_name): Likewise. * gdbtypes.c (rank_function): Likewise. (copy_type_recursive): Likewise. (add_dyn_prop): Likewise. * gnu-nat.c (make_proc): Likewise. (make_inf): Likewise. (gnu_write_inferior): Likewise. * gnu-v3-abi.c (build_gdb_vtable_type): Likewise. (build_std_type_info_type): Likewise. * guile/scm-param.c (compute_enum_list): Likewise. * guile/scm-utils.c (gdbscm_parse_function_args): Likewise. * guile/scm-value.c (gdbscm_value_call): Likewise. * h8300-tdep.c (h8300_gdbarch_init): Likewise. * hppa-tdep.c (hppa_init_objfile_priv_data): Likewise. (read_unwind_info): Likewise. * ia64-tdep.c (ia64_gdbarch_init): Likewise. * infcall.c (dummy_frame_context_saver_setup): Likewise. (call_function_by_hand_dummy): Likewise. * infcmd.c (step_once): Likewise. (finish_forward): Likewise. (attach_command): Likewise. (notice_new_inferior): Likewise. * inferior.c (add_inferior_silent): Likewise. * infrun.c (add_displaced_stepping_state): Likewise. (save_infcall_control_state): Likewise. (save_inferior_ptid): Likewise. (_initialize_infrun): Likewise. * jit.c (bfd_open_from_target_memory): Likewise. (jit_gdbarch_data_init): Likewise. * language.c (add_language): Likewise. * linespec.c (decode_line_2): Likewise. * linux-nat.c (add_to_pid_list): Likewise. (add_initial_lwp): Likewise. * linux-thread-db.c (add_thread_db_info): Likewise. (record_thread): Likewise. (info_auto_load_libthread_db): Likewise. * m32c-tdep.c (m32c_gdbarch_init): Likewise. * m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise. * m68k-tdep.c (m68k_gdbarch_init): Likewise. * m88k-tdep.c (m88k_analyze_prologue): Likewise. * macrocmd.c (macro_define_command): Likewise. * macroexp.c (gather_arguments): Likewise. * macroscope.c (sal_macro_scope): Likewise. * macrotab.c (new_macro_table): Likewise. * mdebugread.c (push_parse_stack): Likewise. (parse_partial_symbols): Likewise. (parse_symbol): Likewise. (psymtab_to_symtab_1): Likewise. (new_block): Likewise. (new_psymtab): Likewise. (mdebug_build_psymtabs): Likewise. (add_pending): Likewise. (elfmdebug_build_psymtabs): Likewise. * mep-tdep.c (mep_gdbarch_init): Likewise. * mi/mi-main.c (mi_execute_command): Likewise. * mi/mi-parse.c (mi_parse_argv): Likewise. * minidebug.c (lzma_open): Likewise. * minsyms.c (terminate_minimal_symbol_table): Likewise. * mips-linux-nat.c (mips_linux_insert_watchpoint): Likewise. * mips-tdep.c (mips_gdbarch_init): Likewise. * mn10300-tdep.c (mn10300_gdbarch_init): Likewise. * msp430-tdep.c (msp430_gdbarch_init): Likewise. * mt-tdep.c (mt_registers_info): Likewise. * nat/aarch64-linux.c (aarch64_linux_new_thread): Likewise. * nat/linux-btrace.c (linux_enable_bts): Likewise. (linux_enable_pt): Likewise. * nat/linux-osdata.c (linux_xfer_osdata_processes): Likewise. (linux_xfer_osdata_processgroups): Likewise. * nios2-tdep.c (nios2_gdbarch_init): Likewise. * nto-procfs.c (procfs_meminfo): Likewise. * objc-lang.c (start_msglist): Likewise. (selectors_info): Likewise. (classes_info): Likewise. (find_methods): Likewise. * objfiles.c (allocate_objfile): Likewise. (update_section_map): Likewise. * osabi.c (gdbarch_register_osabi): Likewise. (gdbarch_register_osabi_sniffer): Likewise. * parse.c (start_arglist): Likewise. * ppc-linux-nat.c (hwdebug_find_thread_points_by_tid): Likewise. (hwdebug_insert_point): Likewise. * printcmd.c (display_command): Likewise. (ui_printf): Likewise. * procfs.c (create_procinfo): Likewise. (load_syscalls): Likewise. (proc_get_LDT_entry): Likewise. (proc_update_threads): Likewise. * prologue-value.c (make_pv_area): Likewise. (pv_area_store): Likewise. * psymtab.c (extend_psymbol_list): Likewise. (init_psymbol_list): Likewise. (allocate_psymtab): Likewise. * python/py-inferior.c (add_thread_object): Likewise. * python/py-param.c (compute_enum_values): Likewise. * python/py-value.c (valpy_call): Likewise. * python/py-varobj.c (py_varobj_iter_next): Likewise. * python/python.c (ensure_python_env): Likewise. * record-btrace.c (record_btrace_start_replaying): Likewise. * record-full.c (record_full_reg_alloc): Likewise. (record_full_mem_alloc): Likewise. (record_full_end_alloc): Likewise. (record_full_core_xfer_partial): Likewise. * regcache.c (get_thread_arch_aspace_regcache): Likewise. * remote-fileio.c (remote_fileio_init_fd_map): Likewise. * remote-notif.c (remote_notif_state_allocate): Likewise. * remote.c (demand_private_info): Likewise. (remote_notif_stop_alloc_reply): Likewise. (remote_enable_btrace): Likewise. * reverse.c (save_bookmark_command): Likewise. * rl78-tdep.c (rl78_gdbarch_init): Likewise. * rx-tdep.c (rx_gdbarch_init): Likewise. * s390-linux-nat.c (s390_insert_watchpoint): Likewise. * ser-go32.c (dos_get_tty_state): Likewise. (dos_copy_tty_state): Likewise. * ser-mingw.c (ser_windows_open): Likewise. (ser_console_wait_handle): Likewise. (ser_console_get_tty_state): Likewise. (make_pipe_state): Likewise. (net_windows_open): Likewise. * ser-unix.c (hardwire_get_tty_state): Likewise. (hardwire_copy_tty_state): Likewise. * solib-aix.c (solib_aix_new_lm_info): Likewise. * solib-dsbt.c (dsbt_current_sos): Likewise. (dsbt_relocate_main_executable): Likewise. * solib-frv.c (frv_current_sos): Likewise. (frv_relocate_main_executable): Likewise. * solib-spu.c (spu_bfd_fopen): Likewise. * solib-svr4.c (lm_info_read): Likewise. (svr4_copy_library_list): Likewise. (svr4_default_sos): Likewise. * source.c (find_source_lines): Likewise. (line_info): Likewise. (add_substitute_path_rule): Likewise. * spu-linux-nat.c (spu_bfd_open): Likewise. * spu-tdep.c (info_spu_dma_cmdlist): Likewise. * stabsread.c (dbx_lookup_type): Likewise. (read_type): Likewise. (read_member_functions): Likewise. (read_struct_fields): Likewise. (read_baseclasses): Likewise. (read_args): Likewise. (_initialize_stabsread): Likewise. * stack.c (func_command): Likewise. * stap-probe.c (handle_stap_probe): Likewise. * symfile.c (addrs_section_sort): Likewise. (addr_info_make_relative): Likewise. (load_section_callback): Likewise. (add_symbol_file_command): Likewise. (init_filename_language_table): Likewise. * symtab.c (create_filename_seen_cache): Likewise. (sort_search_symbols_remove_dups): Likewise. (search_symbols): Likewise. * target.c (make_cleanup_restore_target_terminal): Likewise. * thread.c (new_thread): Likewise. (enable_thread_stack_temporaries): Likewise. (make_cleanup_restore_current_thread): Likewise. (thread_apply_all_command): Likewise. * tic6x-tdep.c (tic6x_gdbarch_init): Likewise. * top.c (gdb_readline_wrapper): Likewise. * tracefile-tfile.c (tfile_trace_file_writer_new): Likewise. * tracepoint.c (trace_find_line_command): Likewise. (all_tracepoint_actions_and_cleanup): Likewise. (make_cleanup_restore_current_traceframe): Likewise. (get_uploaded_tp): Likewise. (get_uploaded_tsv): Likewise. * tui/tui-data.c (tui_alloc_generic_win_info): Likewise. (tui_alloc_win_info): Likewise. (tui_alloc_content): Likewise. (tui_add_content_elements): Likewise. * tui/tui-disasm.c (tui_find_disassembly_address): Likewise. (tui_set_disassem_content): Likewise. * ui-file.c (ui_file_new): Likewise. (stdio_file_new): Likewise. (tee_file_new): Likewise. * utils.c (make_cleanup_restore_integer): Likewise. (add_internal_problem_command): Likewise. * v850-tdep.c (v850_gdbarch_init): Likewise. * valops.c (find_oload_champ): Likewise. * value.c (allocate_value_lazy): Likewise. (record_latest_value): Likewise. (create_internalvar): Likewise. * varobj.c (install_variable): Likewise. (new_variable): Likewise. (new_root_variable): Likewise. (cppush): Likewise. (_initialize_varobj): Likewise. * windows-nat.c (windows_make_so): Likewise. * x86-nat.c (x86_add_process): Likewise. * xcoffread.c (arrange_linetable): Likewise. (allocate_include_entry): Likewise. (process_linenos): Likewise. (SYMBOL_DUP): Likewise. (xcoff_start_psymtab): Likewise. (xcoff_end_psymtab): Likewise. * xml-support.c (gdb_xml_parse_attr_ulongest): Likewise. * xtensa-tdep.c (xtensa_register_type): Likewise. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate. gdb/gdbserver/ChangeLog: * ax.c (gdb_parse_agent_expr): Likewise. (compile_bytecodes): Likewise. * dll.c (loaded_dll): Likewise. * event-loop.c (append_callback_event): Likewise. (create_file_handler): Likewise. (create_file_event): Likewise. * hostio.c (handle_open): Likewise. * inferiors.c (add_thread): Likewise. (add_process): Likewise. * linux-aarch64-low.c (aarch64_linux_new_process): Likewise. * linux-arm-low.c (arm_new_process): Likewise. (arm_new_thread): Likewise. * linux-low.c (add_to_pid_list): Likewise. (linux_add_process): Likewise. (handle_extended_wait): Likewise. (add_lwp): Likewise. (enqueue_one_deferred_signal): Likewise. (enqueue_pending_signal): Likewise. (linux_resume_one_lwp_throw): Likewise. (linux_resume_one_thread): Likewise. (linux_read_memory): Likewise. (linux_write_memory): Likewise. * linux-mips-low.c (mips_linux_new_process): Likewise. (mips_linux_new_thread): Likewise. (mips_add_watchpoint): Likewise. * linux-x86-low.c (initialize_low_arch): Likewise. * lynx-low.c (lynx_add_process): Likewise. * mem-break.c (set_raw_breakpoint_at): Likewise. (set_breakpoint): Likewise. (add_condition_to_breakpoint): Likewise. (add_commands_to_breakpoint): Likewise. (clone_agent_expr): Likewise. (clone_one_breakpoint): Likewise. * regcache.c (new_register_cache): Likewise. * remote-utils.c (look_up_one_symbol): Likewise. * server.c (queue_stop_reply): Likewise. (start_inferior): Likewise. (queue_stop_reply_callback): Likewise. (handle_target_event): Likewise. * spu-low.c (fetch_ppc_memory): Likewise. (store_ppc_memory): Likewise. * target.c (set_target_ops): Likewise. * thread-db.c (thread_db_load_search): Likewise. (try_thread_db_load_1): Likewise. * tracepoint.c (add_tracepoint): Likewise. (add_tracepoint_action): Likewise. (create_trace_state_variable): Likewise. (cmd_qtdpsrc): Likewise. (cmd_qtro): Likewise. (add_while_stepping_state): Likewise. * win32-low.c (child_add_thread): Likewise. (get_image_name): Likewise.
2015-08-26 23:16:07 +02:00
struct x86_process_info *proc = XCNEW (struct x86_process_info);
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
proc->pid = pid;
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
proc->next = x86_process_list;
x86_process_list = proc;
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
return proc;
}
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* Get data specific info for process PID, creating it if necessary.
Never returns NULL. */
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
static struct x86_process_info *
x86_process_info_get (pid_t pid)
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_process_info *proc;
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
proc = x86_find_process_pid (pid);
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
if (proc == NULL)
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
proc = x86_add_process (pid);
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
return proc;
gdb/ Fix watchpoints across inferior fork. * amd64-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (amd64_linux_prepare_to_resume): New comment on Linux kernel. * i386-linux-nat.c (update_debug_registers_callback): Update the comment for linux_nat_iterate_watchpoint_lwps. (i386_linux_dr_set_control, i386_linux_dr_set_addr): Use linux_nat_iterate_watchpoint_lwps. (i386_linux_prepare_to_resume): New comment on Linux kernel. * i386-nat.c: Include inferior.h. (dr_mirror): Remove. (i386_inferior_data, struct i386_inferior_data) (i386_inferior_data_get): New. (i386_debug_reg_state): Use i386_inferior_data_get. (i386_cleanup_dregs, i386_update_inferior_debug_regs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): New variable state, use i386_debug_reg_state instead of DR_MIRROR. * linux-nat.c (delete_lwp): New declaration. (num_lwps): Move here from downwards. (delete_lwp_cleanup): New. (linux_child_follow_fork): Create new child_lp, call linux_nat_new_thread and linux_nat_prepare_to_resume before calling PTRACE_DETACH. (num_lwps): Move upwards. (linux_nat_iterate_watchpoint_lwps): New. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): New. (linux_nat_iterate_watchpoint_lwps_ftype): New declaration. gdb/testsuite/ Fix watchpoints across inferior fork. * gdb.threads/watchpoint-fork-child.c: New file. * gdb.threads/watchpoint-fork-mt.c: New file. * gdb.threads/watchpoint-fork-parent.c: New file. * gdb.threads/watchpoint-fork-st.c: New file. * gdb.threads/watchpoint-fork.exp: New file. * gdb.threads/watchpoint-fork.h: New file.
2012-01-24 14:46:55 +01:00
}
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* Get debug registers state for process PID. */
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *
x86_debug_reg_state (pid_t pid)
gdb/ 2011-12-14 Pedro Alves <pedro@codesourcery.com> PR threads/10729 * linux-nat.c (linux_nat_new_thread): Change parameter to an lwp pointer. (linux_nat_prepare_to_resume): New global. (lwp_free): New. (purge_lwp_list): Use it. (add_lwp): Call linux_nat_new_thread even on the first LWP. Adjust to interface change. (delete_lwp): Call lwp_free instead of xfree. (detach_callback, linux_nat_detach, resume_lwp, linux_nat_resume) (linux_handle_syscall_trap, linux_handle_extended_wait) (linux_nat_filter_event, resume_stopped_resumed_lwps): Call linux_nat_prepare_to_resume before resuming. (linux_stop_lwp): New. (linux_nat_set_new_thread): Adjust. (linux_nat_set_prepare_to_resume): New. * linux-nat.h (struct arch_lwp_info): Forward declare. (struct lwp_info) <arch_private>: New field. (linux_stop_lwp): Declare. (linux_nat_set_new_thread): Adjust. (linux_nat_set_prepare_to_resume): New. * i386-nat.c (DR_NADDR, DR_STATUS, DR_CONTROL) (struct i386_debug_reg_state): Move to i386-nat.h. (dr_mirror): Comment. (i386_debug_reg_state): New. (i386_update_inferior_debug_regs): Simplify. (i386_stopped_data_address): Use the debug register state from the inferior, not from the local cache. * i386-nat.h (struct i386_dr_low_type): Delete reset_addr and unset_status fields. New get_addr and get_control fields. (DR_FIRSTADDR, DR_LASTADDR, DR_CONTROL): Moved from i386-nat.c. (DR_NADDR, DR_STATUS): New. (struct i386_debug_reg_state): Moved from i386-nat.c. * amd64-linux-nat.c (struct arch_lwp_info): New. (amd64_linux_dr): Delete global. (amd64_linux_dr_get_addr): New. (amd64_linux_dr_get_control): New. (amd64_linux_dr_unset_status): Delete. (amd64_linux_dr_set_addr): Reimplement. (amd64_linux_dr_reset_addr): Delete. (update_debug_registers_callback): New. (amd64_linux_dr_set_control): Reimplement. (amd64_linux_dr_set_addr): Reimplement. (amd64_linux_prepare_to_resume): New. (amd64_linux_new_thread): Change parameter to an lwp pointer. Reimplement. (_initialize_amd64_linux_nat): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install amd64_linux_dr_get_control as i386_dr_low.get_control. Install amd64_linux_dr_get_addr as i386_dr_low.get_addr. Install amd64_linux_prepare_to_resume. * i386-linux-nat.c (DR_FIRSTADDR, DR_LASTADDR, DR_STATUS) (DR_CONTROL): Delete. (struct arch_lwp_info): New. (i386_linux_dr): Delete global. (i386_linux_dr_set_control): Reimplement. (i386_linux_dr_get_addr): New. (i386_linux_dr_set_addr): Reimplement. (i386_linux_dr_get_control): New. (update_debug_registers_callback): New. (i386_linux_dr_unset_status): Delete. (i386_linux_dr_set_addr): Reimplement. (i386_linux_prepare_to_resume): New. (i386_linux_new_thread): Change parameter to an lwp pointer. Reimplement. (_initialize_i386_linux_nat): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install i386_linux_dr_get_control as i386_dr_low.get_control. Install i386_linux_dr_get_addr as i386_dr_low.get_addr. Install i386_linux_prepare_to_resume. * arm-linux-nat.c (arm_linux_new_thread): Change parameter to an lwp pointer. Adjust. * ia64-linux-nat.c (ia64_linux_new_thread): Likewise. * mips-linux-nat.c (mips_linux_new_thread): Likewise. * ppc-linux-nat.c (ppc_linux_new_thread): Likewise. * s390-nat.c (s390_fix_watch_points): Likewise. * i386-darwin-nat.c (DR_FIRSTADDR, DR_LASTADDR, DR_STATUS) (DR_CONTROL): Delete. (i386_darwin_dr_reset_addr): Delete. (i386_darwin_dr_get_addr): New. (i386_darwin_dr_get_control): New. * go32-nat.c (go32_get_dr7, go32_get_dr): New. (init_go32_ops): No longer install i386_dr_low.reset_addr. Install go32_get_dr7 as i386_dr_low.get_control. Install go32_get_dr as i386_dr_low.get_addr. * i386bsd-nat.c (i386bsd_dr_get): New. (i386bsd_dr_reset_addr): Delete. (i386bsd_dr_get_addr): New. (i386bsd_dr_get_status): Use i386bsd_dr_get. (i386bsd_dr_get_control): New. * i386bsd-nat.h (i386bsd_dr_reset_addr): Delete. (i386bsd_dr_get_addr): New. (i386bsd_dr_get_control): New. * i386fbsd-nat.c (_initialize_i386fbsd_nat): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install i386bsd_dr_get_control as i386_dr_low.get_control. Install i386bsd_dr_get_addr as i386_dr_low.get_addr. * windows-nat.c (init_windows_ops): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install cygwin_get_dr7 as i386_dr_low.get_control. Install cygwin_get_dr as i386_dr_low.get_addr. (cygwin_get_dr): New. (cygwin_get_dr7): New. gdb/testsuite/ 2011-12-14 Pedro Alves <pedro@codesourcery.com> PR threads/10729 * gdb.mi/watch-nonstop.c: New file. * gdb.mi/mi-watch-nonstop.exp: New file.
2011-12-14 18:20:32 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return &x86_process_info_get (pid)->state;
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
}
/* See declaration in x86-nat.h. */
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
void
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
x86_forget_process (pid_t pid)
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_process_info *proc, **proc_link;
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
proc = x86_process_list;
proc_link = &x86_process_list;
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
while (proc != NULL)
{
if (proc->pid == pid)
{
*proc_link = proc->next;
xfree (proc);
return;
}
proc_link = &proc->next;
proc = *proc_link;
}
gdb/ 2011-12-14 Pedro Alves <pedro@codesourcery.com> PR threads/10729 * linux-nat.c (linux_nat_new_thread): Change parameter to an lwp pointer. (linux_nat_prepare_to_resume): New global. (lwp_free): New. (purge_lwp_list): Use it. (add_lwp): Call linux_nat_new_thread even on the first LWP. Adjust to interface change. (delete_lwp): Call lwp_free instead of xfree. (detach_callback, linux_nat_detach, resume_lwp, linux_nat_resume) (linux_handle_syscall_trap, linux_handle_extended_wait) (linux_nat_filter_event, resume_stopped_resumed_lwps): Call linux_nat_prepare_to_resume before resuming. (linux_stop_lwp): New. (linux_nat_set_new_thread): Adjust. (linux_nat_set_prepare_to_resume): New. * linux-nat.h (struct arch_lwp_info): Forward declare. (struct lwp_info) <arch_private>: New field. (linux_stop_lwp): Declare. (linux_nat_set_new_thread): Adjust. (linux_nat_set_prepare_to_resume): New. * i386-nat.c (DR_NADDR, DR_STATUS, DR_CONTROL) (struct i386_debug_reg_state): Move to i386-nat.h. (dr_mirror): Comment. (i386_debug_reg_state): New. (i386_update_inferior_debug_regs): Simplify. (i386_stopped_data_address): Use the debug register state from the inferior, not from the local cache. * i386-nat.h (struct i386_dr_low_type): Delete reset_addr and unset_status fields. New get_addr and get_control fields. (DR_FIRSTADDR, DR_LASTADDR, DR_CONTROL): Moved from i386-nat.c. (DR_NADDR, DR_STATUS): New. (struct i386_debug_reg_state): Moved from i386-nat.c. * amd64-linux-nat.c (struct arch_lwp_info): New. (amd64_linux_dr): Delete global. (amd64_linux_dr_get_addr): New. (amd64_linux_dr_get_control): New. (amd64_linux_dr_unset_status): Delete. (amd64_linux_dr_set_addr): Reimplement. (amd64_linux_dr_reset_addr): Delete. (update_debug_registers_callback): New. (amd64_linux_dr_set_control): Reimplement. (amd64_linux_dr_set_addr): Reimplement. (amd64_linux_prepare_to_resume): New. (amd64_linux_new_thread): Change parameter to an lwp pointer. Reimplement. (_initialize_amd64_linux_nat): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install amd64_linux_dr_get_control as i386_dr_low.get_control. Install amd64_linux_dr_get_addr as i386_dr_low.get_addr. Install amd64_linux_prepare_to_resume. * i386-linux-nat.c (DR_FIRSTADDR, DR_LASTADDR, DR_STATUS) (DR_CONTROL): Delete. (struct arch_lwp_info): New. (i386_linux_dr): Delete global. (i386_linux_dr_set_control): Reimplement. (i386_linux_dr_get_addr): New. (i386_linux_dr_set_addr): Reimplement. (i386_linux_dr_get_control): New. (update_debug_registers_callback): New. (i386_linux_dr_unset_status): Delete. (i386_linux_dr_set_addr): Reimplement. (i386_linux_prepare_to_resume): New. (i386_linux_new_thread): Change parameter to an lwp pointer. Reimplement. (_initialize_i386_linux_nat): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install i386_linux_dr_get_control as i386_dr_low.get_control. Install i386_linux_dr_get_addr as i386_dr_low.get_addr. Install i386_linux_prepare_to_resume. * arm-linux-nat.c (arm_linux_new_thread): Change parameter to an lwp pointer. Adjust. * ia64-linux-nat.c (ia64_linux_new_thread): Likewise. * mips-linux-nat.c (mips_linux_new_thread): Likewise. * ppc-linux-nat.c (ppc_linux_new_thread): Likewise. * s390-nat.c (s390_fix_watch_points): Likewise. * i386-darwin-nat.c (DR_FIRSTADDR, DR_LASTADDR, DR_STATUS) (DR_CONTROL): Delete. (i386_darwin_dr_reset_addr): Delete. (i386_darwin_dr_get_addr): New. (i386_darwin_dr_get_control): New. * go32-nat.c (go32_get_dr7, go32_get_dr): New. (init_go32_ops): No longer install i386_dr_low.reset_addr. Install go32_get_dr7 as i386_dr_low.get_control. Install go32_get_dr as i386_dr_low.get_addr. * i386bsd-nat.c (i386bsd_dr_get): New. (i386bsd_dr_reset_addr): Delete. (i386bsd_dr_get_addr): New. (i386bsd_dr_get_status): Use i386bsd_dr_get. (i386bsd_dr_get_control): New. * i386bsd-nat.h (i386bsd_dr_reset_addr): Delete. (i386bsd_dr_get_addr): New. (i386bsd_dr_get_control): New. * i386fbsd-nat.c (_initialize_i386fbsd_nat): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install i386bsd_dr_get_control as i386_dr_low.get_control. Install i386bsd_dr_get_addr as i386_dr_low.get_addr. * windows-nat.c (init_windows_ops): No longer install i386_dr_low.reset_addr and i386_dr_low.unset_status. Install cygwin_get_dr7 as i386_dr_low.get_control. Install cygwin_get_dr as i386_dr_low.get_addr. (cygwin_get_dr): New. (cygwin_get_dr7): New. gdb/testsuite/ 2011-12-14 Pedro Alves <pedro@codesourcery.com> PR threads/10729 * gdb.mi/watch-nonstop.c: New file. * gdb.mi/mi-watch-nonstop.exp: New file.
2011-12-14 18:20:32 +01:00
}
/* Clear the reference counts and forget everything we knew about the
debug registers. */
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
void
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
x86_cleanup_dregs (void)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
[native x86 GNU/Linux] Access debug register mirror from the corresponding process. While reviewing the native AArch64 patch, I noticed a problem: On 02/06/2013 08:46 PM, Pedro Alves wrote: > >> > +static void >> > +aarch64_linux_prepare_to_resume (struct lwp_info *lwp) >> > +{ >> > + struct arch_lwp_info *info = lwp->arch_private; >> > + >> > + /* NULL means this is the main thread still going through the shell, >> > + or, no watchpoint has been set yet. In that case, there's >> > + nothing to do. */ >> > + if (info == NULL) >> > + return; >> > + >> > + if (DR_HAS_CHANGED (info->dr_changed_bp) >> > + || DR_HAS_CHANGED (info->dr_changed_wp)) >> > + { >> > + int tid = GET_LWP (lwp->ptid); >> > + struct aarch64_debug_reg_state *state = aarch64_get_debug_reg_state (); > Hmm. This is always fetching the debug_reg_state of > the current inferior, but may not be the inferior of lwp. > I see the same bug on x86. Sorry about that. I'll fix it. A natural fix would be to make xxx_get_debug_reg_state take an inferior argument, but that doesn't work because of the case where we detach breakpoints/watchpoints from the child fork, at a time there's no inferior for the child fork at all. We do a nasty hack in i386_inferior_data_get, but that relies on all callers pointing the current inferior to the correct inferior, which isn't actually being done by all callers, and I don't think we want to enforce that -- deep in the bowls of linux-nat.c, there are many cases we resume lwps behind the scenes, and it's be better to not have that code rely on global state (as it doesn't today). The fix is to decouple the watchpoints code from inferiors, making it track target processes instead. This way, we can freely keep track of the watchpoint mirrors for these processes behind the core's back. Checkpoints also play dirty tricks with swapping the process behind the inferior, so they get special treatment too in the patch (which just amounts to calling a new hook). Instead of the old hack in i386_inferior_data_get, where we returned a copy of the current inferior's debug registers mirror, as soon as we detect a fork in the target, we copy the debug register mirror from the parent to the child process. I don't have an old kernel handy to test, but I stepped through gdb doing the watchpoint removal in the fork child in the watchpoint-fork test seeing that the debug registers end up cleared in the child. I didn't find the need for linux_nat_iterate_watchpoint_lwps. If we use plain iterate_over_lwps instead, what happens is that when removing watchpoints, that iterate_over_lwps doesn't actually iterate over anything, since the fork child is not added to the lwp list until later, at detach time, in linux_child_follow_fork. And if we don't iterate over that lwp, we don't mark its debug registers as needing update. But linux_child_follow_fork takes care of doing that explicitly: child_lp = add_lwp (inferior_ptid); child_lp->stopped = 1; child_lp->last_resume_kind = resume_stop; make_cleanup (delete_lwp_cleanup, child_lp); /* CHILD_LP has new PID, therefore linux_nat_new_thread is not called for it. See i386_inferior_data_get for the Linux kernel specifics. Ensure linux_nat_prepare_to_resume will reset the hardware debug registers. It is done by the linux_nat_new_thread call, which is being skipped in add_lwp above for the first lwp of a pid. */ gdb_assert (num_lwps (GET_PID (child_lp->ptid)) == 1); if (linux_nat_new_thread != NULL) linux_nat_new_thread (child_lp); if (linux_nat_prepare_to_resume != NULL) linux_nat_prepare_to_resume (child_lp); ptrace (PTRACE_DETACH, child_pid, 0, 0); so unless I'm missing something (quite possible) it ends up all the same. But, the !detach-on-fork, and the "follow-fork child" paths should also call linux_nat_new_thread, and they don't presently. It seems to me in those cases we're not clearing debug regs correctly when that's needed. Instead of copying that bit that works around add_lwp bypassing the linux_nat_new_thread call, I thought it'd be better to add an add_initial_lwp call to be used in the case we really need to bypass linux_nat_new_thread, and make add_lwp always call linux_nat_new_thread. i386_cleanup_dregs is rewritten to forget about the current process debug mirrors, which takes cares of other i386 ports. Only a couple of extra tweaks here and there were needed, as some targets wheren't actually calling i386_cleanup_dregs. Tested on Fedora 17 x86_64 -m64/-m32. GDBserver already fetches the i386_debug_reg_state from the right process, and, it doesn't handle forks at all, so no fix is needed over there. gdb/ 2013-02-13 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (amd64_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (amd64_linux_new_fork): New function. (_initialize_amd64_linux_nat): Install amd64_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-linux-nat.c (update_debug_registers_callback): Update comment. (amd64_linux_dr_set_control, amd64_linux_dr_set_addr): Use iterate_over_lwps. (i386_linux_prepare_to_resume): Pass the lwp's pid to i386_debug_reg_state. (i386_linux_new_fork): New function. (_initialize_i386_linux_nat): Install i386_linux_new_fork as linux_nat_new_fork hook, and i386_forget_process as linux_nat_forget_process hook. * i386-nat.c (i386_init_dregs): Delete. (i386_inferior_data, struct i386_inferior_data): Delete. (struct i386_process_info): New. (i386_process_list): New global. (i386_find_process_pid, i386_add_process, i386_process_info_get): New functions. (i386_inferior_data_get): Delete. (i386_process_info_get): New function. (i386_debug_reg_state): New parameter 'pid'. Reimplement. (i386_forget_process): New function. (i386_cleanup_dregs): Rewrite. (i386_update_inferior_debug_regs, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Adjust to pass the current process id to i386_debug_reg_state. (i386_use_watchpoints): Don't register inferior data. * i386-nat.h (i386_debug_reg_state): Add new 'pid' parameter, and adjust comment. (i386_forget_process): Declare. * linux-fork.c (delete_fork): Call linux_nat_forget_process. * linux-nat.c (linux_nat_new_fork, linux_nat_forget_process_hook): New static globals. (linux_child_follow_fork): Don't call linux_nat_new_thread here. (add_initial_lwp): New, factored out from ... (add_lwp): ... this. Don't check the number of lwps before calling linux_nat_new_thread. (linux_nat_iterate_watchpoint_lwps): Delete. (linux_nat_attach): Use add_initial_lwp instead of add_lwp. (linux_handle_extended_wait): Call the linux_nat_new_fork hook on forks and vforks. (linux_nat_wait_1): Use add_initial_lwp instead of add_lwp for the initial lwp. (linux_nat_kill, linux_nat_mourn_inferior): Call linux_nat_forget_process. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New functions. * linux-nat.h (linux_nat_iterate_watchpoint_lwps_ftype): Delete type. (linux_nat_iterate_watchpoint_lwps): Delete declaration. (linux_nat_new_fork_ftype, linux_nat_forget_process_ftype): New types. (linux_nat_set_new_fork, linux_nat_set_forget_process) (linux_nat_forget_process): New declarations. * amd64fbsd-nat.c (super_mourn_inferior): New global. (amd64fbsd_mourn_inferior): New function. (_initialize_amd64fbsd_nat): Override to_mourn_inferior. * windows-nat.c (windows_detach): Call i386_cleanup_dregs.
2013-02-13 15:59:49 +01:00
/* Starting from scratch has the same effect. */
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
x86_forget_process (inferior_ptid.pid ());
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}
/* Insert a watchpoint to watch a memory region which starts at
address ADDR and whose length is LEN bytes. Watch memory accesses
of the type TYPE. Return 0 on success, -1 on failure. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_insert_watchpoint (CORE_ADDR addr, int len,
Mostly trivial enum fixes This is a patch I extracted from Pedro's C++ branch. It contains the most trivial enum fixes, where an integer type/value was used instead of the appropriate enum type/value. It fixes many C++ errors, since in C++ you can't mix integers and enums implicitely. Regardless of the C++ conversion, I think this is a good cleanup to make use of the appropriate enum types. Regression-tested on native x86_64. gdb/ChangeLog: * aarch64-linux-nat.c (aarch64_linux_can_use_hw_breakpoint): Use enum type or value instead of integer. (aarch64_linux_insert_watchpoint): Likewise. (aarch64_linux_remove_watchpoint): Likewise. * ada-lang.c (ada_op_print_tab): Likewise. * amd64-linux-tdep.c (amd64_canonicalize_syscall): Likewise. (amd64_linux_syscall_record_common): Likewise. * arch-utils.c (target_byte_order_user): Likewise. (default_byte_order): Likewise. * arm-linux-nat.c (arm_linux_can_use_hw_breakpoint): Likewise. (arm_linux_get_hwbp_type): Likewise. (arm_linux_hw_watchpoint_initialize): Likewise. (arm_linux_insert_watchpoint): Likewise. * arm-linux-tdep.c (arm_canonicalize_syscall): Likewise. (arm_linux_syscall_record): Likewise. * breakpoint.c (update_watchpoint): Likewise. (breakpoint_here_p): Likewise. (bpstat_print): Likewise. (enable_breakpoint_disp): Likewise. * c-lang.c (c_op_print_tab): Likewise. * cli/cli-decode.c (add_info_alias): Likewise. * d-lang.c (d_op_print_tab): Likewise. * eval.c (evaluate_subexp_standard): Likewise. * f-exp.y (dot_ops): Likewise. (f77_keywords): Likewise. * f-lang.c (f_op_print_tab): Likewise. * go-lang.c (go_op_print_tab): Likewise. * guile/scm-breakpoint.c (gdbscm_make_breakpoint): Likewise. * guile/scm-cmd.c (gdbscm_make_command): Likewise. * guile/scm-param.c (gdbscm_make_parameter): Likewise. * guile/scm-pretty-print.c (gdbscm_apply_val_pretty_printer): Likewise. * guile/scm-string.c (struct scm_to_stringn_data): Likewise. (struct scm_from_stringn_data): Likewise. * i386-linux-tdep.c (i386_canonicalize_syscall): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_remove_watchpoint): Likewise. (ia64_linux_can_use_hw_breakpoint): Likewise. * infrun.c (print_stop_event): Likewise. * jv-lang.c (java_op_print_tab): Likewise. * linux-nat.c (linux_proc_xfer_partial): Likewise. * linux-nat.h (struct lwp_info): Likewise. * linux-thread-db.c (enable_thread_event): Likewise. * m2-lang.c (m2_op_print_tab): Likewise. * mi/mi-cmd-stack.c (mi_cmd_stack_list_locals): Likewise. (mi_cmd_stack_list_variables): Likewise. * mi/mi-main.c (mi_cmd_trace_frame_collected): Likewise. * mi/mi-out.c (mi_table_begin): Likewise. (mi_table_header): Likewise. * mips-linux-nat.c (mips_linux_can_use_hw_breakpoint): Likewise. (mips_linux_insert_watchpoint): Likewise. (mips_linux_remove_watchpoint): Likewise. * nat/mips-linux-watch.c (mips_linux_watch_type_to_irw): Likewise. * nat/mips-linux-watch.h (struct mips_watchpoint): Likewise. (mips_linux_watch_type_to_irw): Likewise. * nto-procfs.c (procfs_can_use_hw_breakpoint): Likewise. (procfs_insert_hw_watchpoint): Likewise. (procfs_remove_hw_watchpoint): Likewise. (procfs_hw_watchpoint): Likewise. (procfs_can_use_hw_breakpoint): Likewise. (procfs_remove_hw_watchpoint): Likewise. (procfs_insert_hw_watchpoint): Likewise. * p-lang.c (pascal_op_print_tab): Likewise. * ppc-linux-nat.c (ppc_linux_can_use_hw_breakpoint): Likewise. * ppc-linux-tdep.c (ppu2spu_unwind_register): Likewise. * ppc-sysv-tdep.c (get_decimal_float_return_value): Likewise. * procfs.c (procfs_can_use_hw_breakpoint): Likewise. (procfs_insert_watchpoint): Likewise. (procfs_remove_watchpoint): Likewise. * psymtab.c (recursively_search_psymtabs): Likewise. * remote-m32r-sdi.c (m32r_can_use_hw_watchpoint): Likewise. (m32r_insert_watchpoint): Likewise. * remote-mips.c (mips_can_use_watchpoint): Likewise. (mips_insert_watchpoint): Likewise. (mips_remove_watchpoint): Likewise. * remote.c (watchpoint_to_Z_packet): Likewise. (remote_insert_watchpoint): Likewise. (remote_remove_watchpoint): Likewise. (remote_check_watch_resources): Likewise. * s390-linux-nat.c (s390_insert_watchpoint): Likewise. (s390_remove_watchpoint): Likewise. (s390_can_use_hw_breakpoint): Likewise. * s390-linux-tdep.c (s390_gdbarch_init): Likewise. * spu-linux-nat.c (spu_can_use_hw_breakpoint): Likewise. * target.h (struct target_ops): Likewise. * tilegx-tdep.c (tilegx_analyze_prologue): Likewise. * ui-out.c (struct ui_out_hdr): Likewise. (append_header_to_list): Likewise. (get_next_header): Likewise. (verify_field): Likewise. (ui_out_begin): Likewise. (ui_out_field_int): Likewise. (ui_out_field_fmt_int): Likewise. (ui_out_field_skip): Likewise. (ui_out_field_string): Likewise. (ui_out_field_fmt): Likewise. * varobj.c (new_variable): Likewise. * x86-nat.c (x86_insert_watchpoint): Likewise. (x86_remove_watchpoint): Likewise. (x86_can_use_hw_breakpoint): Likewise. * xtensa-tdep.h (struct gdbarch_tdep): Likewise. * inflow.c (enum gdb_has_a_terminal_flag_enum): Add name to previously anonymous enumeration type.. * linux-record.h (enum gdb_syscall): Add gdb_sys_no_syscall value. * target-debug.h (target_debug_print_enum_target_hw_bp_type): New. (target_debug_print_enum_bptype): New. * target-delegates.c: Regenerate.
2015-07-31 19:19:53 +02:00
enum target_hw_bp_type type, struct expression *cond)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return x86_dr_insert_watchpoint (state, type, addr, len);
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}
/* Remove a watchpoint that watched the memory region which starts at
address ADDR, whose length is LEN bytes, and for accesses of the
type TYPE. Return 0 on success, -1 on failure. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_remove_watchpoint (CORE_ADDR addr, int len,
Mostly trivial enum fixes This is a patch I extracted from Pedro's C++ branch. It contains the most trivial enum fixes, where an integer type/value was used instead of the appropriate enum type/value. It fixes many C++ errors, since in C++ you can't mix integers and enums implicitely. Regardless of the C++ conversion, I think this is a good cleanup to make use of the appropriate enum types. Regression-tested on native x86_64. gdb/ChangeLog: * aarch64-linux-nat.c (aarch64_linux_can_use_hw_breakpoint): Use enum type or value instead of integer. (aarch64_linux_insert_watchpoint): Likewise. (aarch64_linux_remove_watchpoint): Likewise. * ada-lang.c (ada_op_print_tab): Likewise. * amd64-linux-tdep.c (amd64_canonicalize_syscall): Likewise. (amd64_linux_syscall_record_common): Likewise. * arch-utils.c (target_byte_order_user): Likewise. (default_byte_order): Likewise. * arm-linux-nat.c (arm_linux_can_use_hw_breakpoint): Likewise. (arm_linux_get_hwbp_type): Likewise. (arm_linux_hw_watchpoint_initialize): Likewise. (arm_linux_insert_watchpoint): Likewise. * arm-linux-tdep.c (arm_canonicalize_syscall): Likewise. (arm_linux_syscall_record): Likewise. * breakpoint.c (update_watchpoint): Likewise. (breakpoint_here_p): Likewise. (bpstat_print): Likewise. (enable_breakpoint_disp): Likewise. * c-lang.c (c_op_print_tab): Likewise. * cli/cli-decode.c (add_info_alias): Likewise. * d-lang.c (d_op_print_tab): Likewise. * eval.c (evaluate_subexp_standard): Likewise. * f-exp.y (dot_ops): Likewise. (f77_keywords): Likewise. * f-lang.c (f_op_print_tab): Likewise. * go-lang.c (go_op_print_tab): Likewise. * guile/scm-breakpoint.c (gdbscm_make_breakpoint): Likewise. * guile/scm-cmd.c (gdbscm_make_command): Likewise. * guile/scm-param.c (gdbscm_make_parameter): Likewise. * guile/scm-pretty-print.c (gdbscm_apply_val_pretty_printer): Likewise. * guile/scm-string.c (struct scm_to_stringn_data): Likewise. (struct scm_from_stringn_data): Likewise. * i386-linux-tdep.c (i386_canonicalize_syscall): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_remove_watchpoint): Likewise. (ia64_linux_can_use_hw_breakpoint): Likewise. * infrun.c (print_stop_event): Likewise. * jv-lang.c (java_op_print_tab): Likewise. * linux-nat.c (linux_proc_xfer_partial): Likewise. * linux-nat.h (struct lwp_info): Likewise. * linux-thread-db.c (enable_thread_event): Likewise. * m2-lang.c (m2_op_print_tab): Likewise. * mi/mi-cmd-stack.c (mi_cmd_stack_list_locals): Likewise. (mi_cmd_stack_list_variables): Likewise. * mi/mi-main.c (mi_cmd_trace_frame_collected): Likewise. * mi/mi-out.c (mi_table_begin): Likewise. (mi_table_header): Likewise. * mips-linux-nat.c (mips_linux_can_use_hw_breakpoint): Likewise. (mips_linux_insert_watchpoint): Likewise. (mips_linux_remove_watchpoint): Likewise. * nat/mips-linux-watch.c (mips_linux_watch_type_to_irw): Likewise. * nat/mips-linux-watch.h (struct mips_watchpoint): Likewise. (mips_linux_watch_type_to_irw): Likewise. * nto-procfs.c (procfs_can_use_hw_breakpoint): Likewise. (procfs_insert_hw_watchpoint): Likewise. (procfs_remove_hw_watchpoint): Likewise. (procfs_hw_watchpoint): Likewise. (procfs_can_use_hw_breakpoint): Likewise. (procfs_remove_hw_watchpoint): Likewise. (procfs_insert_hw_watchpoint): Likewise. * p-lang.c (pascal_op_print_tab): Likewise. * ppc-linux-nat.c (ppc_linux_can_use_hw_breakpoint): Likewise. * ppc-linux-tdep.c (ppu2spu_unwind_register): Likewise. * ppc-sysv-tdep.c (get_decimal_float_return_value): Likewise. * procfs.c (procfs_can_use_hw_breakpoint): Likewise. (procfs_insert_watchpoint): Likewise. (procfs_remove_watchpoint): Likewise. * psymtab.c (recursively_search_psymtabs): Likewise. * remote-m32r-sdi.c (m32r_can_use_hw_watchpoint): Likewise. (m32r_insert_watchpoint): Likewise. * remote-mips.c (mips_can_use_watchpoint): Likewise. (mips_insert_watchpoint): Likewise. (mips_remove_watchpoint): Likewise. * remote.c (watchpoint_to_Z_packet): Likewise. (remote_insert_watchpoint): Likewise. (remote_remove_watchpoint): Likewise. (remote_check_watch_resources): Likewise. * s390-linux-nat.c (s390_insert_watchpoint): Likewise. (s390_remove_watchpoint): Likewise. (s390_can_use_hw_breakpoint): Likewise. * s390-linux-tdep.c (s390_gdbarch_init): Likewise. * spu-linux-nat.c (spu_can_use_hw_breakpoint): Likewise. * target.h (struct target_ops): Likewise. * tilegx-tdep.c (tilegx_analyze_prologue): Likewise. * ui-out.c (struct ui_out_hdr): Likewise. (append_header_to_list): Likewise. (get_next_header): Likewise. (verify_field): Likewise. (ui_out_begin): Likewise. (ui_out_field_int): Likewise. (ui_out_field_fmt_int): Likewise. (ui_out_field_skip): Likewise. (ui_out_field_string): Likewise. (ui_out_field_fmt): Likewise. * varobj.c (new_variable): Likewise. * x86-nat.c (x86_insert_watchpoint): Likewise. (x86_remove_watchpoint): Likewise. (x86_can_use_hw_breakpoint): Likewise. * xtensa-tdep.h (struct gdbarch_tdep): Likewise. * inflow.c (enum gdb_has_a_terminal_flag_enum): Add name to previously anonymous enumeration type.. * linux-record.h (enum gdb_syscall): Add gdb_sys_no_syscall value. * target-debug.h (target_debug_print_enum_target_hw_bp_type): New. (target_debug_print_enum_bptype): New. * target-delegates.c: Regenerate.
2015-07-31 19:19:53 +02:00
enum target_hw_bp_type type, struct expression *cond)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
2011-07-22 Pedro Alves <pedro@codesourcery.com> gdb/testsuite/ * gdb.arch/i386-dr3-watch.exp: Test that the i386 watchpoints backend doesn't leave used debug registers behind. gdb/gdbserver/ * i386-low.c (i386_insert_aligned_watchpoint): Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Ditto. (i386_handle_nonaligned_watchpoint): Return immediate on fail to fit part of the watchpoint in the debug registers. (i386_update_inferior_debug_regs): New. (i386_low_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_low_remove_watchpoint): Ditto. gdb/ * i386-nat.c (I386_DR_VACANT, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): Add state parameter and adjust. (dr_mirror, dr_status_mirror, dr_control_mirror): Delete. (struct i386_debug_reg_state): New. (i386_init_dregs): New. (dr_mirror): New. (i386_cleanup_dregs): Use i386_init_dregs. (i386_show_dr): Add state parameter and adjust. (i386_insert_aligned_watchpoint): Ditto. Don't pass the info to the inferior here. (i386_remove_aligned_watchpoint): Likewise. (i386_handle_nonaligned_watchpoint): Add state parameter and adjust. (i386_update_inferior_debug_regs): New. (i386_insert_watchpoint): Work on a local mirror of the debug registers, and only update the inferior on success. (i386_remove_watchpoint): Ditto. (i386_region_ok_for_watchpoint): Adjust. (i386_stopped_data_address): Adjust. (i386_insert_hw_breakpoint): Adjust. (i386_remove_hw_breakpoint): Adjust.
2011-07-22 18:58:32 +02:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return x86_dr_remove_watchpoint (state, type, addr, len);
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}
/* Return non-zero if we can watch a memory region that starts at
address ADDR and whose length is LEN bytes. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return x86_dr_region_ok_for_watchpoint (state, addr, len);
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}
/* If the inferior has some break/watchpoint that triggered, set the
address associated with that break/watchpoint and return non-zero.
Otherwise, return zero. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_stopped_data_address (CORE_ADDR *addr_p)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return x86_dr_stopped_data_address (state, addr_p);
}
/* Return non-zero if the inferior has some watchpoint that triggered.
Otherwise return zero. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_stopped_by_watchpoint ()
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return x86_dr_stopped_by_watchpoint (state);
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}
Avoid software breakpoint's instruction shadow inconsistency This change: commit b775012e845380ed4c7421a1b87caf7bfae39f5f Author: Luis Machado <luisgpm@br.ibm.com> Date: Fri Feb 24 15:10:59 2012 +0000 2012-02-24 Luis Machado <lgustavo@codesourcery.com> * remote.c (remote_supports_cond_breakpoints): New forward declaration. [...] changed the way breakpoints are inserted and removed such that `insert_bp_location' can now be called with the breakpoint being handled already in place, while previously the call was only ever made for breakpoints that have not been put in place. This in turn caused an issue for software breakpoints and targets for which a breakpoint's `placed_address' may not be the same as the original requested address. The issue is `insert_bp_location' overwrites the previously adjusted value in `placed_address' with the original address, that is only replaced back with the correct adjusted address later on when `gdbarch_breakpoint_from_pc' is called. Meanwhile there's a window where the value in `placed_address' does not correspond to data stored in `shadow_contents', leading to incorrect instruction bytes being supplied when `one_breakpoint_xfer_memory' is called to supply the instruction overlaid by the breakpoint. And this is exactly what happens on the MIPS target with software breakpoints placed in microMIPS code. In this case not only `placed_address' is not the original address because of the ISA bit, but `mips_breakpoint_from_pc' has to read the original instruction to determine which one of the two software breakpoint instruction encodings to choose as well. The 16-bit encoding is used to replace 16-bit instructions and similarly the 32-bit one is used with 32-bit instructions, to satisfy branch delay slot size requirements. The mismatch between `placed_address' and the address data in `shadow_contents' has been obtained from leads to the wrong encoding being used in some cases, which in the case of a 32-bit software breakpoint instruction replacing a 16-bit instruction causes corruption to the adjacent following instruction and leads the debug session astray if execution reaches there e.g. with a jump. To address this problem I made the change below, that adds a `reqstd_address' field to `struct bp_target_info' and leaves `placed_address' unchanged once it has been set. This ensures data in `shadow_contents' is always consistent with `placed_address'. This approach also has this good side effect that all the places that examine the breakpoint's address see a consistent value, either `reqstd_address' or `placed_address', as required. Currently some places see either the original or the adjusted address in `placed_address', depending on whether they have been called before `gdbarch_remote_breakpoint_from_pc' or afterwards. This is in particular true for subsequent calls to `gdbarch_remote_breakpoint_from_pc' itself, e.g. from `one_breakpoint_xfer_memory'. This is also important for places like `find_single_step_breakpoint' where a breakpoint's address is compared to the raw value of $pc. * breakpoint.h (bp_target_info): Add `reqstd_address' member, update comments. * breakpoint.c (one_breakpoint_xfer_memory): Use `reqstd_address' for the breakpoint's address. Don't preinitialize `placed_size'. (insert_bp_location): Set `reqstd_address' rather than `placed_address'. (bp_target_info_copy_insertion_state): Also copy `placed_address'. (bkpt_insert_location): Use `reqstd_address' for the breakpoint's address. (bkpt_remove_location): Likewise. (deprecated_insert_raw_breakpoint): Likewise. (deprecated_remove_raw_breakpoint): Likewise. (find_single_step_breakpoint): Likewise. * mem-break.c (default_memory_insert_breakpoint): Use `reqstd_address' for the breakpoint's address. Don't set `placed_address' or `placed_size' if breakpoint contents couldn't have been determined. * remote.c (remote_insert_breakpoint): Use `reqstd_address' for the breakpoint's address. (remote_insert_hw_breakpoint): Likewise. Don't set `placed_address' or `placed_size' if breakpoint couldn't have been set. * aarch64-linux-nat.c (aarch64_linux_insert_hw_breakpoint): Use `reqstd_address' for the breakpoint's address. * arm-linux-nat.c (arm_linux_hw_breakpoint_initialize): Likewise. * ia64-tdep.c (ia64_memory_insert_breakpoint): Likewise. * m32r-tdep.c (m32r_memory_insert_breakpoint): Likewise. * microblaze-linux-tdep.c (microblaze_linux_memory_remove_breakpoint): Likewise. * monitor.c (monitor_insert_breakpoint): Likewise. * nto-procfs.c (procfs_insert_breakpoint): Likewise. (procfs_insert_hw_breakpoint): Likewise. * ppc-linux-nat.c (ppc_linux_insert_hw_breakpoint): Likewise. * ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise. * remote-m32r-sdi.c (m32r_insert_breakpoint): Likewise. * remote-mips.c (mips_insert_breakpoint): Likewise. * x86-nat.c (x86_insert_hw_breakpoint): Likewise.
2014-10-03 13:44:58 +02:00
/* Insert a hardware-assisted breakpoint at BP_TGT->reqstd_address.
gdb/ * breakpoint.c (deprecated_read_memory_nobpt): Update to use shadow_len. (insert_bp_location, reattach_breakpoints, remove_breakpoint) (delete_breakpoint): Update calls to changed methods. (deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint) (single_step_breakpoints, insert_single_step_breakpoint) (remove_single_step_breakpoints): New. * breakpoint.h (struct bp_target_info): New. (struct bp_location): Replace shadow_contents with target_info and overlay_target_info. (deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint) (insert_single_step_breakpoint, remove_single_step_breakpoints): New prototypes. * gdbarch.sh: Forward declare struct bp_target_info in gdbarch.h. (memory_insert_breakpoint, memory_remove_breakpoint): Update second argument. * mem-break.c (default_memory_insert_breakpoint): Update. Set placed_address, placed_size, and shadow_len. (default_memory_remove_breakpoint): Update. Don't use BREAKPOINT_FROM_PC. (memory_insert_breakpoint, memory_remove_breakpoint): Update. * target.c (update_current_target): Update prototypes for changed functions. (debug_to_insert_breakpoint, debug_to_remove_breakpoint) (debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Update. * target.h: Forward declare struct bp_target_info. (struct target_ops): Use a bp_target_info argument for to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint, and to_remove_hw_breakpoint. (target_insert_breakpoint, target_remove_breakpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint) (memory_insert_breakpoint, memory_remove_breakpoint) (default_memory_insert_breakpoint, default_memory_remove_breakpoint): Update. * config/i386/nm-i386.h: Forward declare struct bp_target_info. (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update. (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Likewise. * gdbarch.c, gdbarch.h: Regenerated. * alpha-tdep.c (alpha_software_single_step): Use insert_single_step_breakpoint and remove_single_step_breakpoints. Remove unused statics. * arm-tdep.c (arm_software_single_step): Likewise. Add a note. * cris-tdep.c (cris_software_single_step): Likewise. * mips-tdep.c (mips_software_single_step): Likewise. * rs6000-tdep.c (rs6000_software_single_step): Likewise. * sparc-tdep.c (sparc_software_single_step): Likewise. * wince.c (struct thread_info_struct): Remove step_prev. (undoSStep): Use remove_single_step_breakpoints. (wince_software_single_step): Use insert_single_step_breakpoint. * corelow.c (ignore): Remove unneeded prototype. Update arguments. * exec.c (ignore): Likewise. * sol-thread.c (ignore): Likewise. * procfs.c (dbx_link_shadow_contents): Delete. (dbx_link_bpt): New. (procfs_mourn_inferior): Remove it if necessary. (remove_dbx_link_breakpoint): Use it. (insert_dbx_link_bpt_in_file): Set it. (procfs_init_inferior): Don't update dbx_link_bpt_addr. * rs6000-nat.c (exec_one_dummy_insn): Use deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint. * solib-irix.c (shadow_contents, breakpoint_addr): Delete. (base_breakpoint): New. (disable_break): Use it. (enable_break): Set it. * i386-nat.c (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update. * ia64-tdep.c (ia64_memory_insert_breakpoint) (ia64_memory_remove_breakpoint): Likewise. * m32r-tdep.c (m32r_memory_insert_breakpoint) (m32r_memory_remove_breakpoint): Likewise. * monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint): Likewise. Remove unnecessary prototypes. Use placed_address and placed_size. Removed useless read from memory. * nto-procfs.c (procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint): Update. * ocd.c (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise. * ocd.h (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise. * ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise. * ppc-tdep.h (ppc_linux_memory_remove_breakpoint): Likewise. * remote-e7000.c (e7000_insert_breakpoint) (e7000_remove_breakpoint): Likewise. * remote-m32r-sdi.c (m32r_insert_breakpoint) (m32r_remove_breakpoint): Likewise. * remote-mips.c (mips_insert_breakpoint) (mips_remove_breakpoint): Likewise. * remote-rdp.c (remote_rdp_insert_breakpoint) (remote_rdp_remove_breakpoint): Likewise. (rdp_step): Use deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint. * remote-sds.c (sds_insert_breakpoint, sds_remove_breakpoint): Update. * remote-sim.c (gdbsim_insert_breakpoint, gdbsim_remove_breakpoint): Delete. (init_gdbsim_ops): Use memory_insert_breakpoint and memory_remove_breakpoint. * remote-st.c (st2000_insert_breakpoint) (st2000_remove_breakpoint): Update. Remove unused BREAKPOINT_FROM_PC. * remote.c (remote_insert_breakpoint, remote_remove_breakpoint): Update. Use placed_address and placed_size. (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint): Likewise. gdb/doc/ * gdbint.texinfo (x86 Watchpoints, Target Conditionals): Update insert and remove breakpoint prototypes. (Watchpoints): Move description of target_insert_hw_breakpoint and target_remove_hw_breakpoint ... (Breakpoints): ... to here. Document target_insert_breakpoint and target_remove_breakpoint.
2006-04-18 21:20:08 +02:00
Return 0 on success, EBUSY on failure. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_insert_hw_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
Avoid software breakpoint's instruction shadow inconsistency This change: commit b775012e845380ed4c7421a1b87caf7bfae39f5f Author: Luis Machado <luisgpm@br.ibm.com> Date: Fri Feb 24 15:10:59 2012 +0000 2012-02-24 Luis Machado <lgustavo@codesourcery.com> * remote.c (remote_supports_cond_breakpoints): New forward declaration. [...] changed the way breakpoints are inserted and removed such that `insert_bp_location' can now be called with the breakpoint being handled already in place, while previously the call was only ever made for breakpoints that have not been put in place. This in turn caused an issue for software breakpoints and targets for which a breakpoint's `placed_address' may not be the same as the original requested address. The issue is `insert_bp_location' overwrites the previously adjusted value in `placed_address' with the original address, that is only replaced back with the correct adjusted address later on when `gdbarch_breakpoint_from_pc' is called. Meanwhile there's a window where the value in `placed_address' does not correspond to data stored in `shadow_contents', leading to incorrect instruction bytes being supplied when `one_breakpoint_xfer_memory' is called to supply the instruction overlaid by the breakpoint. And this is exactly what happens on the MIPS target with software breakpoints placed in microMIPS code. In this case not only `placed_address' is not the original address because of the ISA bit, but `mips_breakpoint_from_pc' has to read the original instruction to determine which one of the two software breakpoint instruction encodings to choose as well. The 16-bit encoding is used to replace 16-bit instructions and similarly the 32-bit one is used with 32-bit instructions, to satisfy branch delay slot size requirements. The mismatch between `placed_address' and the address data in `shadow_contents' has been obtained from leads to the wrong encoding being used in some cases, which in the case of a 32-bit software breakpoint instruction replacing a 16-bit instruction causes corruption to the adjacent following instruction and leads the debug session astray if execution reaches there e.g. with a jump. To address this problem I made the change below, that adds a `reqstd_address' field to `struct bp_target_info' and leaves `placed_address' unchanged once it has been set. This ensures data in `shadow_contents' is always consistent with `placed_address'. This approach also has this good side effect that all the places that examine the breakpoint's address see a consistent value, either `reqstd_address' or `placed_address', as required. Currently some places see either the original or the adjusted address in `placed_address', depending on whether they have been called before `gdbarch_remote_breakpoint_from_pc' or afterwards. This is in particular true for subsequent calls to `gdbarch_remote_breakpoint_from_pc' itself, e.g. from `one_breakpoint_xfer_memory'. This is also important for places like `find_single_step_breakpoint' where a breakpoint's address is compared to the raw value of $pc. * breakpoint.h (bp_target_info): Add `reqstd_address' member, update comments. * breakpoint.c (one_breakpoint_xfer_memory): Use `reqstd_address' for the breakpoint's address. Don't preinitialize `placed_size'. (insert_bp_location): Set `reqstd_address' rather than `placed_address'. (bp_target_info_copy_insertion_state): Also copy `placed_address'. (bkpt_insert_location): Use `reqstd_address' for the breakpoint's address. (bkpt_remove_location): Likewise. (deprecated_insert_raw_breakpoint): Likewise. (deprecated_remove_raw_breakpoint): Likewise. (find_single_step_breakpoint): Likewise. * mem-break.c (default_memory_insert_breakpoint): Use `reqstd_address' for the breakpoint's address. Don't set `placed_address' or `placed_size' if breakpoint contents couldn't have been determined. * remote.c (remote_insert_breakpoint): Use `reqstd_address' for the breakpoint's address. (remote_insert_hw_breakpoint): Likewise. Don't set `placed_address' or `placed_size' if breakpoint couldn't have been set. * aarch64-linux-nat.c (aarch64_linux_insert_hw_breakpoint): Use `reqstd_address' for the breakpoint's address. * arm-linux-nat.c (arm_linux_hw_breakpoint_initialize): Likewise. * ia64-tdep.c (ia64_memory_insert_breakpoint): Likewise. * m32r-tdep.c (m32r_memory_insert_breakpoint): Likewise. * microblaze-linux-tdep.c (microblaze_linux_memory_remove_breakpoint): Likewise. * monitor.c (monitor_insert_breakpoint): Likewise. * nto-procfs.c (procfs_insert_breakpoint): Likewise. (procfs_insert_hw_breakpoint): Likewise. * ppc-linux-nat.c (ppc_linux_insert_hw_breakpoint): Likewise. * ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise. * remote-m32r-sdi.c (m32r_insert_breakpoint): Likewise. * remote-mips.c (mips_insert_breakpoint): Likewise. * x86-nat.c (x86_insert_hw_breakpoint): Likewise.
2014-10-03 13:44:58 +02:00
bp_tgt->placed_address = bp_tgt->reqstd_address;
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return x86_dr_insert_watchpoint (state, hw_execute,
bp_tgt->placed_address, 1) ? EBUSY : 0;
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}
gdb/ * breakpoint.c (deprecated_read_memory_nobpt): Update to use shadow_len. (insert_bp_location, reattach_breakpoints, remove_breakpoint) (delete_breakpoint): Update calls to changed methods. (deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint) (single_step_breakpoints, insert_single_step_breakpoint) (remove_single_step_breakpoints): New. * breakpoint.h (struct bp_target_info): New. (struct bp_location): Replace shadow_contents with target_info and overlay_target_info. (deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint) (insert_single_step_breakpoint, remove_single_step_breakpoints): New prototypes. * gdbarch.sh: Forward declare struct bp_target_info in gdbarch.h. (memory_insert_breakpoint, memory_remove_breakpoint): Update second argument. * mem-break.c (default_memory_insert_breakpoint): Update. Set placed_address, placed_size, and shadow_len. (default_memory_remove_breakpoint): Update. Don't use BREAKPOINT_FROM_PC. (memory_insert_breakpoint, memory_remove_breakpoint): Update. * target.c (update_current_target): Update prototypes for changed functions. (debug_to_insert_breakpoint, debug_to_remove_breakpoint) (debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Update. * target.h: Forward declare struct bp_target_info. (struct target_ops): Use a bp_target_info argument for to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint, and to_remove_hw_breakpoint. (target_insert_breakpoint, target_remove_breakpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint) (memory_insert_breakpoint, memory_remove_breakpoint) (default_memory_insert_breakpoint, default_memory_remove_breakpoint): Update. * config/i386/nm-i386.h: Forward declare struct bp_target_info. (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update. (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Likewise. * gdbarch.c, gdbarch.h: Regenerated. * alpha-tdep.c (alpha_software_single_step): Use insert_single_step_breakpoint and remove_single_step_breakpoints. Remove unused statics. * arm-tdep.c (arm_software_single_step): Likewise. Add a note. * cris-tdep.c (cris_software_single_step): Likewise. * mips-tdep.c (mips_software_single_step): Likewise. * rs6000-tdep.c (rs6000_software_single_step): Likewise. * sparc-tdep.c (sparc_software_single_step): Likewise. * wince.c (struct thread_info_struct): Remove step_prev. (undoSStep): Use remove_single_step_breakpoints. (wince_software_single_step): Use insert_single_step_breakpoint. * corelow.c (ignore): Remove unneeded prototype. Update arguments. * exec.c (ignore): Likewise. * sol-thread.c (ignore): Likewise. * procfs.c (dbx_link_shadow_contents): Delete. (dbx_link_bpt): New. (procfs_mourn_inferior): Remove it if necessary. (remove_dbx_link_breakpoint): Use it. (insert_dbx_link_bpt_in_file): Set it. (procfs_init_inferior): Don't update dbx_link_bpt_addr. * rs6000-nat.c (exec_one_dummy_insn): Use deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint. * solib-irix.c (shadow_contents, breakpoint_addr): Delete. (base_breakpoint): New. (disable_break): Use it. (enable_break): Set it. * i386-nat.c (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): Update. * ia64-tdep.c (ia64_memory_insert_breakpoint) (ia64_memory_remove_breakpoint): Likewise. * m32r-tdep.c (m32r_memory_insert_breakpoint) (m32r_memory_remove_breakpoint): Likewise. * monitor.c (monitor_insert_breakpoint, monitor_remove_breakpoint): Likewise. Remove unnecessary prototypes. Use placed_address and placed_size. Removed useless read from memory. * nto-procfs.c (procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint): Update. * ocd.c (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise. * ocd.h (ocd_insert_breakpoint, ocd_remove_breakpoint): Likewise. * ppc-linux-tdep.c (ppc_linux_memory_remove_breakpoint): Likewise. * ppc-tdep.h (ppc_linux_memory_remove_breakpoint): Likewise. * remote-e7000.c (e7000_insert_breakpoint) (e7000_remove_breakpoint): Likewise. * remote-m32r-sdi.c (m32r_insert_breakpoint) (m32r_remove_breakpoint): Likewise. * remote-mips.c (mips_insert_breakpoint) (mips_remove_breakpoint): Likewise. * remote-rdp.c (remote_rdp_insert_breakpoint) (remote_rdp_remove_breakpoint): Likewise. (rdp_step): Use deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint. * remote-sds.c (sds_insert_breakpoint, sds_remove_breakpoint): Update. * remote-sim.c (gdbsim_insert_breakpoint, gdbsim_remove_breakpoint): Delete. (init_gdbsim_ops): Use memory_insert_breakpoint and memory_remove_breakpoint. * remote-st.c (st2000_insert_breakpoint) (st2000_remove_breakpoint): Update. Remove unused BREAKPOINT_FROM_PC. * remote.c (remote_insert_breakpoint, remote_remove_breakpoint): Update. Use placed_address and placed_size. (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint): Likewise. gdb/doc/ * gdbint.texinfo (x86 Watchpoints, Target Conditionals): Update insert and remove breakpoint prototypes. (Watchpoints): Move description of target_insert_hw_breakpoint and target_remove_hw_breakpoint ... (Breakpoints): ... to here. Document target_insert_breakpoint and target_remove_breakpoint.
2006-04-18 21:20:08 +02:00
/* Remove a hardware-assisted breakpoint at BP_TGT->placed_address.
Return 0 on success, -1 on failure. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_remove_hw_breakpoint (struct gdbarch *gdbarch,
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct bp_target_info *bp_tgt)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
return x86_dr_remove_watchpoint (state, hw_execute,
bp_tgt->placed_address, 1);
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}
/* Returns the number of hardware watchpoints of type TYPE that we can
set. Value is positive if we can set CNT watchpoints, zero if
setting watchpoints of type TYPE is not supported, and negative if
CNT is more than the maximum number of watchpoints of type TYPE
that we can support. TYPE is one of bp_hardware_watchpoint,
bp_read_watchpoint, bp_write_watchpoint, or bp_hardware_breakpoint.
CNT is the number of such watchpoints used so far (including this
one). OTHERTYPE is non-zero if other types of watchpoints are
currently enabled.
We always return 1 here because we don't have enough information
about possible overlap of addresses that they want to watch. As an
extreme example, consider the case where all the watchpoints watch
the same address and the same region length: then we can handle a
virtually unlimited number of watchpoints, due to debug register
sharing implemented via reference counts in x86-nat.c. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_can_use_hw_breakpoint (enum bptype type, int cnt, int othertype)
{
return 1;
}
/* Return non-zero if the inferior has some breakpoint that triggered.
Otherwise return zero. */
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
int
x86_stopped_by_hw_breakpoint ()
{
struct x86_debug_reg_state *state
Remove ptid_get_pid This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update.
2018-06-11 20:05:27 +02:00
= x86_debug_reg_state (inferior_ptid.pid ());
return x86_dr_stopped_by_hw_breakpoint (state);
}
Remove all i386 debug register low level macros in config nm files. (I386_DR_LOW_SET_ADDR, I386_DR_LOW_RESET_ADDR): Remove. (I386_DR_LOW_GET_STATUS, I386_DR_LOW_SET_CONTROL): Remove. (I386_USE_GENERIC_WATCHPOIINTS): Remove. * i386-nat.h: New file (adapted from config/i386/nm-i386.h). (struct i386_dr_low_type): New type. (i386_dr_low): New global variable. * i386-nat.c (TARGET_HAS_DR_LEN_8): Update macro. (i386_insert_aligned_watchpoint): Replace i386 dr low macros by i386_dr_low struct variable fields. (i386_remove_aligned_watchpoint): Likewise. (i386_stopped_data_address): Likewise. (i386_stopped_by_hwbp): Likewise. (show_debug_regs_command_added): New static variable. (add_show_debug_regs_command): New static function. (i386_use_watchpoints): Call add_show_debug_regs_command if not done. (i386_set_debug_register_length): New function. (_initialize_i386_nat): Delete. * amd64-linux-nat.c: Include "i386-nat.h". (amd64_linux_dr_set_control): Change to static. (amd64_linux_dr_get_status): Change to static. (amd64_linux_dr_set_addr,amd64_linux_dr_reset_addr): Likewise. (_initialize_amd64_linux_nat): Set i386_dr_low variable fields. * go32-nat.c: Include "i386-nat.h". (go32_set_addr): Change to static. (go32_set_dr7): Change to static. Change arg type to unisgned long. (go32_get_dr6): Change to static. Change return type to unisnged long. (init_go32_ops): Set i386_dr_low variable fields. * i386-linux-nat.c: Include "i386-nat.h". (i386_linux_dr_set_control, i386_linux_dr_get_status): Change to static. (i386_linux_dr_set_addr, i386_linux_dr_reset_addr): Idem. (_initialize_i386_linux_nat): Set i386_dr_low variable fields. * i386bsd-nat.h: Declare functions used for i386_dr_low fields in i386fbsd-nat.c. * i386fbsd-nat.c: Include "i386-nat.h". (_initialize_i386fbsd_nat): Set i386_dr_low variable fields. * windows-nat.c: Include "i386-nat.h". (cygwin_set_dr, cygwin_get_dr6, cygwin_set_dr7): Add prototypes. Change to static. (cygwin_get_dr6): Change return type to unisnged long. (cygwin_set_dr7): Change arg type to unisgned long. (init_windows_ops): Set i386_dr_low function fields. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Call i386_set_debug_register_length. * i386-windows-nat.c (_initialize_i386_windows_nat): Likewise. * config/i386/nm-cygwin.h: Remove all I386_* macros. * config/i386/nm-cygwin64.h: Likewise. * config/i386/nm-fbsd.h: Likewise. * config/i386/nm-linux.h: Likewise. * config/i386/nm-i386.h: Remove completely. * config/i386/nm-go32.h: Remove completely. * config/i386/nm-linux64.h: Remove completely. * config/i386/go32.mh (NAT_FILE): Remove entry. * config/i386/linux64.h (NAT_FILE): Change to config/nm-linux.h.
2009-05-14 11:37:00 +02:00
static void
add_show_debug_regs_command (void)
{
/* A maintenance command to enable printing the internal DRi mirror
variables. */
add_setshow_boolean_cmd ("show-debug-regs", class_maintenance,
&show_debug_regs, _("\
Remove all i386 debug register low level macros in config nm files. (I386_DR_LOW_SET_ADDR, I386_DR_LOW_RESET_ADDR): Remove. (I386_DR_LOW_GET_STATUS, I386_DR_LOW_SET_CONTROL): Remove. (I386_USE_GENERIC_WATCHPOIINTS): Remove. * i386-nat.h: New file (adapted from config/i386/nm-i386.h). (struct i386_dr_low_type): New type. (i386_dr_low): New global variable. * i386-nat.c (TARGET_HAS_DR_LEN_8): Update macro. (i386_insert_aligned_watchpoint): Replace i386 dr low macros by i386_dr_low struct variable fields. (i386_remove_aligned_watchpoint): Likewise. (i386_stopped_data_address): Likewise. (i386_stopped_by_hwbp): Likewise. (show_debug_regs_command_added): New static variable. (add_show_debug_regs_command): New static function. (i386_use_watchpoints): Call add_show_debug_regs_command if not done. (i386_set_debug_register_length): New function. (_initialize_i386_nat): Delete. * amd64-linux-nat.c: Include "i386-nat.h". (amd64_linux_dr_set_control): Change to static. (amd64_linux_dr_get_status): Change to static. (amd64_linux_dr_set_addr,amd64_linux_dr_reset_addr): Likewise. (_initialize_amd64_linux_nat): Set i386_dr_low variable fields. * go32-nat.c: Include "i386-nat.h". (go32_set_addr): Change to static. (go32_set_dr7): Change to static. Change arg type to unisgned long. (go32_get_dr6): Change to static. Change return type to unisnged long. (init_go32_ops): Set i386_dr_low variable fields. * i386-linux-nat.c: Include "i386-nat.h". (i386_linux_dr_set_control, i386_linux_dr_get_status): Change to static. (i386_linux_dr_set_addr, i386_linux_dr_reset_addr): Idem. (_initialize_i386_linux_nat): Set i386_dr_low variable fields. * i386bsd-nat.h: Declare functions used for i386_dr_low fields in i386fbsd-nat.c. * i386fbsd-nat.c: Include "i386-nat.h". (_initialize_i386fbsd_nat): Set i386_dr_low variable fields. * windows-nat.c: Include "i386-nat.h". (cygwin_set_dr, cygwin_get_dr6, cygwin_set_dr7): Add prototypes. Change to static. (cygwin_get_dr6): Change return type to unisnged long. (cygwin_set_dr7): Change arg type to unisgned long. (init_windows_ops): Set i386_dr_low function fields. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Call i386_set_debug_register_length. * i386-windows-nat.c (_initialize_i386_windows_nat): Likewise. * config/i386/nm-cygwin.h: Remove all I386_* macros. * config/i386/nm-cygwin64.h: Likewise. * config/i386/nm-fbsd.h: Likewise. * config/i386/nm-linux.h: Likewise. * config/i386/nm-i386.h: Remove completely. * config/i386/nm-go32.h: Remove completely. * config/i386/nm-linux64.h: Remove completely. * config/i386/go32.mh (NAT_FILE): Remove entry. * config/i386/linux64.h (NAT_FILE): Change to config/nm-linux.h.
2009-05-14 11:37:00 +02:00
Set whether to show variables that mirror the x86 debug registers."), _("\
Show whether to show variables that mirror the x86 debug registers."), _("\
Use \"on\" to enable, \"off\" to disable.\n\
If enabled, the debug registers values are shown when GDB inserts\n\
or removes a hardware breakpoint or watchpoint, and when the inferior\n\
triggers a breakpoint or watchpoint."),
NULL,
NULL,
&maintenance_set_cmdlist,
&maintenance_show_cmdlist);
}
Convert struct target_ops to C++ I.e., use C++ virtual methods and inheritance instead of tables of function pointers. Unfortunately, there's no way to do a smooth transition. ALL native targets in the tree must be converted at the same time. I've tested all I could with cross compilers and with help from GCC compile farm, but naturally I haven't been able to test many of the ports. Still, I made a best effort to port everything over, and while I expect some build problems due to typos and such, which should be trivial to fix, I don't expect any design problems. * Implementation notes: - The flattened current_target is gone. References to current_target or current_target.beneath are replaced with references to target_stack (the top of the stack) directly. - To keep "set debug target" working, this adds a new debug_stratum layer that sits on top of the stack, prints the debug, and delegates to the target beneath. In addition, this makes the shortname and longname properties of target_ops be virtual methods instead of data fields, and makes the debug target defer those to the target beneath. This is so that debug code sprinkled around that does "if (debugtarget) ..." can transparently print the name of the target beneath. A patch later in the series actually splits out the shortname/longname methods to a separate structure, but I preferred to keep that chance separate as it is associated with changing a bit the design of how targets are registered and open. - Since you can't check whether a C++ virtual method is overridden, the old method of checking whether a target_ops implements a method by comparing the function pointer must be replaced with something else. Some cases are fixed by adding a parallel "can_do_foo" target_ops methods. E.g.,: + for (t = target_stack; t != NULL; t = t->beneath) { - if (t->to_create_inferior != NULL) + if (t->can_create_inferior ()) break; } Others are fixed by changing void return type to bool or int return type, and have the default implementation return false or -1, to indicate lack of support. - make-target-delegates was adjusted to generate C++ classes and methods. It needed tweaks to grok "virtual" in front of the target method name, and for the fact that methods are no longer function pointers. (In particular, the current code parsing the return type was simple because it could simply parse up until the '(' in '(*to_foo)'. It now generates a couple C++ classes that inherit target_ops: dummy_target and debug_target. Since we need to generate the class declarations as well, i.e., we need to emit methods twice, we now generate the code in two passes. - The core_target global is renamed to avoid conflict with the "core_target" class. - ctf/tfile targets init_tracefile_ops is replaced by a base class that is inherited by both ctf and tfile. - bsd-uthread The bsd_uthread_ops_hack hack is gone. It's not needed because nothing was extending a target created by bsd_uthread_target. - remote/extended-remote targets This is a first pass, just enough to C++ify target_ops. A later pass will convert more free functions to methods, and make remote_state be truly per remote instance, allowing multiple simultaneous instances of remote targets. - inf-child/"native" is converted to an actual base class (inf_child_target), that is inherited by all native targets. - GNU/Linux The old weird double-target linux_ops mechanism in linux-nat.c, is gone, replaced by adding a few virtual methods to linux-nat.h's target_ops, called low_XXX, that the concrete linux-nat implementations override. Sort of like gdbserver's linux_target_ops, but simpler, for requiring only one target_ops-like hierarchy, which spares implementing the same method twice when we need to forward the method to a low implementation. The low target simply reimplements the target_ops method directly in that case. There are a few remaining linux-nat.c hooks that would be better converted to low_ methods like above too. E.g.: linux_nat_set_new_thread (t, x86_linux_new_thread); linux_nat_set_new_fork (t, x86_linux_new_fork); linux_nat_set_forget_process That'll be done in a follow up patch. - We can no longer use functions like x86_use_watchpoints to install custom methods on an arbitrary base target. The patch replaces instances of such a pattern with template mixins. For example memory_breakpoint_target defined in target.h, or x86_nat_target in x86-nat.h. - linux_trad_target, MIPS and Alpha GNU/Linux The code in the new linux-nat-trad.h/c files which was split off of inf-ptrace.h/c recently, is converted to a C++ base class, and used by the MIPS and Alpha GNU/Linux ports. - BSD targets The $architecture x NetBSD/OpenBSD/FreeBSD support matrix complicates things a bit. There's common BSD target code, and there's common architecture-specific code shared between the different BSDs. Currently, all that is stiched together to form a final target, via the i386bsd_target, x86bsd_target, fbsd_nat_add_target functions etc. This introduces new fbsd_nat_target, obsd_nat_target and nbsd_nat_target classes that serve as base/prototype target for the corresponding BSD variant. And introduces generic i386/AMD64 BSD targets, to be used as template mixin to build a final target. Similarly, a generic SPARC target is added, used by both BSD and Linux ports. - bsd_kvm_add_target, BSD libkvm target I considered making bsd_kvm_supply_pcb a virtual method, and then have each port inherit bsd_kvm_target and override that method, but that was resulting in lots of unjustified churn, so I left the function pointer mechanism alone. gdb/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> John Baldwin <jhb@freebsd.org> * target.h (enum strata) <debug_stratum>: New. (struct target_ops) <all delegation methods>: Replace by C++ virtual methods, and drop "to_" prefix. All references updated throughout. <to_shortname, to_longname, to_doc, to_data, to_have_steppable_watchpoint, to_have_continuable_watchpoint, to_has_thread_control, to_attach_no_wait>: Delete, replaced by virtual methods. All references updated throughout. <can_attach, supports_terminal_ours, can_create_inferior, get_thread_control_capabilities, attach_no_wait>: New virtual methods. <insert_breakpoint, remove_breakpoint>: Now TARGET_DEFAULT_NORETURN methods. <info_proc>: Now returns bool. <to_magic>: Delete. (OPS_MAGIC): Delete. (current_target): Delete. All references replaced by references to ... (target_stack): ... this. New. (target_shortname, target_longname): Adjust. (target_can_run): Now a function declaration. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (memory_breakpoint_target): New template class. (test_target_ops): Refactor as a C++ class with virtual methods. * make-target-delegates (NAME_PART): Tighten. (POINTER_PART, CP_SYMBOL): New. (SIMPLE_RETURN_PART): Reimplement. (VEC_RETURN_PART): Expect less. (RETURN_PART, VIRTUAL_PART): New. (METHOD): Adjust to C++ virtual methods. (scan_target_h): Remove reference to C99. (dname): Output "target_ops::" prefix. (write_function_header): Adjust to output a C++ class method. (write_declaration): New. (write_delegator): Adjust to output a C++ class method. (tdname): Output "dummy_target::" prefix. (write_tdefault, write_debugmethod): Adjust to output a C++ class method. (tdefault_names, debug_names): Delete. (return_types, tdefaults, styles, argtypes_array): New. (top level): All methods are delegators. (print_class): New. (top level): Print dummy_target and debug_target classes. * target-delegates.c: Regenerate. * target-debug.h (target_debug_print_enum_info_proc_what) (target_debug_print_thread_control_capabilities) (target_debug_print_thread_info_p): New. * target.c (dummy_target): Delete. (the_dummy_target, the_debug_target): New. (target_stack): Now extern. (set_targetdebug): Push/unpush debug target. (default_child_has_all_memory, default_child_has_memory) (default_child_has_stack, default_child_has_registers) (default_child_has_execution): Remove target_ops parameter. (complete_target_initialization): Delete. (add_target_with_completer): No longer call complete_target_initialization. (target_supports_terminal_ours): Use regular delegation. (update_current_target): Delete. (push_target): No longer check magic number. Don't call update_current_target. (unpush_target): Don't call update_current_target. (target_is_pushed): No longer check magic number. (target_require_runnable): Skip for all stratums over process_stratum. (target_ops::info_proc): New. (target_info_proc): Use find_target_at and find_default_run_target. (target_supports_disable_randomization): Use regular delegation. (target_get_osdata): Use find_target_at. (target_ops::open, target_ops::close, target_ops::can_attach) (target_ops::attach, target_ops::can_create_inferior) (target_ops::create_inferior, target_ops::can_run) (target_can_run): New. (default_fileio_target): Use regular delegation. (target_ops::fileio_open, target_ops::fileio_pwrite) (target_ops::fileio_pread, target_ops::fileio_fstat) (target_ops::fileio_close, target_ops::fileio_unlink) (target_ops::fileio_readlink): New. (target_fileio_open_1, target_fileio_unlink) (target_fileio_readlink): Always call the target method. Handle FILEIO_ENOSYS. (return_zero, return_zero_has_execution): Delete. (init_dummy_target): Delete. (dummy_target::dummy_target, dummy_target::shortname) (dummy_target::longname, dummy_target::doc) (debug_target::debug_target, debug_target::shortname) (debug_target::longname, debug_target::doc): New. (target_supports_delete_record): Use regular delegation. (setup_target_debug): Delete. (maintenance_print_target_stack): Skip debug_stratum. (initialize_targets): Instantiate the_dummy_target and the_debug_target. * auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to use target_stack. (target_auxv_search, fprint_target_auxv): Adjust. (info_auxv_command): Adjust to use target_stack. * auxv.h (target_auxv_parse): Remove 'ops' parameter. * exceptions.c (print_flush): Handle a NULL target_stack. * regcache.c (target_ops_no_register): Refactor as class with virtual methods. * exec.c (exec_target): New class. (exec_ops): Now an exec_target. (exec_open, exec_close_1, exec_get_section_table) (exec_xfer_partial, exec_files_info, exec_has_memory) (exec_make_note_section): Refactor as exec_target methods. (exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops): Delete. (exec_target::find_memory_regions): New. (_initialize_exec): Don't call init_exec_ops. * gdbcore.h (exec_file_clear): Delete. * corefile.c (core_target): Delete. (core_file_command): Adjust. * corelow.c (core_target): New class. (the_core_target): New. (core_close): Remove target_ops parameter. (core_close_cleanup): Adjust. (core_target::close): New. (core_open, core_detach, get_core_registers, core_files_info) (core_xfer_partial, core_thread_alive, core_read_description) (core_pid_to_str, core_thread_name, core_has_memory) (core_has_stack, core_has_registers, core_info_proc): Rework as core_target methods. (ignore, core_remove_breakpoint, init_core_ops): Delete. (_initialize_corelow): Initialize the_core_target. * gdbcore.h (core_target): Delete. (the_core_target): New. * ctf.c: (ctf_target): New class. (ctf_ops): Now a ctf_target. (ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers) (ctf_xfer_partial, ctf_get_trace_state_variable_value) (ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target methods. (init_ctf_ops): Delete. (_initialize_ctf): Don't call it. * tracefile-tfile.c (tfile_target): New class. (tfile_ops): Now a tfile_target. (tfile_open, tfile_close, tfile_files_info) (tfile_get_tracepoint_status, tfile_trace_find) (tfile_fetch_registers, tfile_xfer_partial) (tfile_get_trace_state_variable_value, tfile_traceframe_info): Refactor as tfile_target methods. (tfile_xfer_partial_features): Remove target_ops parameter. (init_tfile_ops): Delete. (_initialize_tracefile_tfile): Don't call it. * tracefile.c (tracefile_has_all_memory, tracefile_has_memory) (tracefile_has_stack, tracefile_has_registers) (tracefile_thread_alive, tracefile_get_trace_status): Refactor as tracefile_target methods. (init_tracefile_ops): Delete. (tracefile_target::tracefile_target): New. * tracefile.h: Include "target.h". (tracefile_target): New class. (init_tracefile_ops): Delete. * spu-multiarch.c (spu_multiarch_target): New class. (spu_ops): Now a spu_multiarch_target. (spu_thread_architecture, spu_region_ok_for_hw_watchpoint) (spu_fetch_registers, spu_store_registers, spu_xfer_partial) (spu_search_memory, spu_mourn_inferior): Refactor as spu_multiarch_target methods. (init_spu_ops): Delete. (_initialize_spu_multiarch): Remove references to init_spu_ops, complete_target_initialization. * ravenscar-thread.c (ravenscar_thread_target): New class. (ravenscar_ops): Now a ravenscar_thread_target. (ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list) (ravenscar_thread_alive, ravenscar_pid_to_str) (ravenscar_fetch_registers, ravenscar_store_registers) (ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint) (ravenscar_stopped_by_hw_breakpoint) (ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address) (ravenscar_mourn_inferior, ravenscar_core_of_thread) (ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target methods. (init_ravenscar_thread_ops): Delete. (_initialize_ravenscar): Remove references to init_ravenscar_thread_ops and complete_target_initialization. * bsd-uthread.c (bsd_uthread_ops_hack): Delete. (bsd_uthread_target): New class. (bsd_uthread_ops): Now a bsd_uthread_target. (bsd_uthread_activate): Adjust to refer to bsd_uthread_ops. (bsd_uthread_close, bsd_uthread_mourn_inferior) (bsd_uthread_fetch_registers, bsd_uthread_store_registers) (bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive) (bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods. (bsd_uthread_target): Delete function. (_initialize_bsd_uthread): Remove reference to complete_target_initialization. * bfd-target.c (target_bfd_data): Delete. Fields folded into ... (target_bfd): ... this new class. (target_bfd_xfer_partial, target_bfd_get_section_table) (target_bfd_close): Refactor as target_bfd methods. (target_bfd::~target_bfd): New. (target_bfd_reopen): Adjust. (target_bfd::close): New. * record-btrace.c (record_btrace_target): New class. (record_btrace_ops): Now a record_btrace_target. (record_btrace_open, record_btrace_stop_recording) (record_btrace_disconnect, record_btrace_close) (record_btrace_async, record_btrace_info) (record_btrace_insn_history, record_btrace_insn_history_range) (record_btrace_insn_history_from, record_btrace_call_history) (record_btrace_call_history_range) (record_btrace_call_history_from, record_btrace_record_method) (record_btrace_is_replaying, record_btrace_will_replay) (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint, record_btrace_fetch_registers) (record_btrace_store_registers, record_btrace_prepare_to_store) (record_btrace_to_get_unwinder) (record_btrace_to_get_tailcall_unwinder, record_btrace_resume) (record_btrace_commit_resume, record_btrace_wait) (record_btrace_stop, record_btrace_can_execute_reverse) (record_btrace_stopped_by_sw_breakpoint) (record_btrace_supports_stopped_by_sw_breakpoint) (record_btrace_stopped_by_hw_breakpoint) (record_btrace_supports_stopped_by_hw_breakpoint) (record_btrace_update_thread_list, record_btrace_thread_alive) (record_btrace_goto_begin, record_btrace_goto_end) (record_btrace_goto, record_btrace_stop_replaying_all) (record_btrace_execution_direction) (record_btrace_prepare_to_generate_core) (record_btrace_done_generating_core): Refactor as record_btrace_target methods. (init_record_btrace_ops): Delete. (_initialize_record_btrace): Remove reference to init_record_btrace_ops. * record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to the execution_direction global. (record_full_base_target, record_full_target) (record_full_core_target): New classes. (record_full_ops): Now a record_full_target. (record_full_core_ops): Now a record_full_core_target. (record_full_target::detach, record_full_target::disconnect) (record_full_core_target::disconnect) (record_full_target::mourn_inferior, record_full_target::kill): New. (record_full_open, record_full_close, record_full_async): Refactor as methods of the record_full_base_target class. (record_full_resume, record_full_commit_resume): Refactor as methods of the record_full_target class. (record_full_wait, record_full_stopped_by_watchpoint) (record_full_stopped_data_address) (record_full_stopped_by_sw_breakpoint) (record_full_supports_stopped_by_sw_breakpoint) (record_full_stopped_by_hw_breakpoint) (record_full_supports_stopped_by_hw_breakpoint): Refactor as methods of the record_full_base_target class. (record_full_store_registers, record_full_xfer_partial) (record_full_insert_breakpoint, record_full_remove_breakpoint): Refactor as methods of the record_full_target class. (record_full_can_execute_reverse, record_full_get_bookmark) (record_full_goto_bookmark, record_full_execution_direction) (record_full_record_method, record_full_info, record_full_delete) (record_full_is_replaying, record_full_will_replay) (record_full_goto_begin, record_full_goto_end, record_full_goto) (record_full_stop_replaying): Refactor as methods of the record_full_base_target class. (record_full_core_resume, record_full_core_kill) (record_full_core_fetch_registers) (record_full_core_prepare_to_store) (record_full_core_store_registers, record_full_core_xfer_partial) (record_full_core_insert_breakpoint) (record_full_core_remove_breakpoint) (record_full_core_has_execution): Refactor as methods of the record_full_core_target class. (record_full_base_target::supports_delete_record): New. (init_record_full_ops): Delete. (init_record_full_core_ops): Delete. (record_full_save): Refactor as method of the record_full_base_target class. (_initialize_record_full): Remove references to init_record_full_ops and init_record_full_core_ops. * remote.c (remote_target, extended_remote_target): New classes. (remote_ops): Now a remote_target. (extended_remote_ops): Now an extended_remote_target. (remote_insert_fork_catchpoint, remote_remove_fork_catchpoint) (remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint) (remote_insert_exec_catchpoint, remote_remove_exec_catchpoint) (remote_pass_signals, remote_set_syscall_catchpoint) (remote_program_signals, ) (remote_thread_always_alive): Remove target_ops parameter. (remote_thread_alive, remote_thread_name) (remote_update_thread_list, remote_threads_extra_info) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (remote_get_ada_task_ptid, remote_close, remote_start_remote) (remote_open): Refactor as methods of remote_target. (extended_remote_open, extended_remote_detach) (extended_remote_attach, extended_remote_post_attach): (extended_remote_supports_disable_randomization) (extended_remote_create_inferior): : Refactor as method of extended_remote_target. (remote_set_permissions, remote_open_1, remote_detach) (remote_follow_fork, remote_follow_exec, remote_disconnect) (remote_resume, remote_commit_resume, remote_stop) (remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior) (remote_terminal_ours, remote_wait, remote_fetch_registers) (remote_prepare_to_store, remote_store_registers) (remote_flash_erase, remote_flash_done, remote_files_info) (remote_kill, remote_mourn, remote_insert_breakpoint) (remote_remove_breakpoint, remote_insert_watchpoint) (remote_watchpoint_addr_within_range) (remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint) (remote_check_watch_resources, remote_stopped_by_sw_breakpoint) (remote_supports_stopped_by_sw_breakpoint) (remote_stopped_by_hw_breakpoint) (remote_supports_stopped_by_hw_breakpoint) (remote_stopped_by_watchpoint, remote_stopped_data_address) (remote_insert_hw_breakpoint, remote_remove_hw_breakpoint) (remote_verify_memory): Refactor as methods of remote_target. (remote_write_qxfer, remote_read_qxfer): Remove target_ops parameter. (remote_xfer_partial, remote_get_memory_xfer_limit) (remote_search_memory, remote_rcmd, remote_memory_map) (remote_pid_to_str, remote_get_thread_local_address) (remote_get_tib_address, remote_read_description): Refactor as methods of remote_target. (remote_target::fileio_open, remote_target::fileio_pwrite) (remote_target::fileio_pread, remote_target::fileio_close): New. (remote_hostio_readlink, remote_hostio_fstat) (remote_filesystem_is_local, remote_can_execute_reverse) (remote_supports_non_stop, remote_supports_disable_randomization) (remote_supports_multi_process, remote_supports_cond_breakpoints) (remote_supports_enable_disable_tracepoint) (remote_supports_string_tracing) (remote_can_run_breakpoint_commands, remote_trace_init) (remote_download_tracepoint, remote_can_download_tracepoint) (remote_download_trace_state_variable, remote_enable_tracepoint) (remote_disable_tracepoint, remote_trace_set_readonly_regions) (remote_trace_start, remote_get_trace_status) (remote_get_tracepoint_status, remote_trace_stop) (remote_trace_find, remote_get_trace_state_variable_value) (remote_save_trace_data, remote_get_raw_trace_data) (remote_set_disconnected_tracing, remote_core_of_thread) (remote_set_circular_trace_buffer, remote_traceframe_info) (remote_get_min_fast_tracepoint_insn_len) (remote_set_trace_buffer_size, remote_set_trace_notes) (remote_use_agent, remote_can_use_agent, remote_enable_btrace) (remote_disable_btrace, remote_teardown_btrace) (remote_read_btrace, remote_btrace_conf) (remote_augmented_libraries_svr4_read, remote_load) (remote_pid_to_exec_file, remote_can_do_single_step) (remote_execution_direction, remote_thread_handle_to_thread_info): Refactor as methods of remote_target. (init_remote_ops, init_extended_remote_ops): Delete. (remote_can_async_p, remote_is_async_p, remote_async) (remote_thread_events, remote_upload_tracepoints) (remote_upload_trace_state_variables): Refactor as methods of remote_target. (_initialize_remote): Remove references to init_remote_ops and init_extended_remote_ops. * remote-sim.c (gdbsim_target): New class. (gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill) (gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close) (gdbsim_detach, gdbsim_resume, gdbsim_interrupt) (gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial) (gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive) (gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory): Refactor as methods of gdbsim_target. (gdbsim_ops): Now a gdbsim_target. (init_gdbsim_ops): Delete. (gdbsim_cntrl_c): Adjust. (_initialize_remote_sim): Remove reference to init_gdbsim_ops. * amd64-linux-nat.c (amd64_linux_nat_target): New class. (the_amd64_linux_nat_target): New. (amd64_linux_fetch_inferior_registers) (amd64_linux_store_inferior_registers): Refactor as methods of amd64_linux_nat_target. (_initialize_amd64_linux_nat): Adjust. Set linux_target. * i386-linux-nat.c: Don't include "linux-nat.h". (i386_linux_nat_target): New class. (the_i386_linux_nat_target): New. (i386_linux_fetch_inferior_registers) (i386_linux_store_inferior_registers, i386_linux_resume): Refactor as methods of i386_linux_nat_target. (_initialize_i386_linux_nat): Adjust. Set linux_target. * inf-child.c (inf_child_ops): Delete. (inf_child_fetch_inferior_registers) (inf_child_store_inferior_registers): Delete. (inf_child_post_attach, inf_child_prepare_to_store): Refactor as methods of inf_child_target. (inf_child_target::supports_terminal_ours) (inf_child_target::terminal_init) (inf_child_target::terminal_inferior) (inf_child_target::terminal_ours_for_output) (inf_child_target::terminal_ours, inf_child_target::interrupt) (inf_child_target::pass_ctrlc, inf_child_target::terminal_info): New. (inf_child_open, inf_child_disconnect, inf_child_close) (inf_child_mourn_inferior, inf_child_maybe_unpush_target) (inf_child_post_startup_inferior, inf_child_can_run) (inf_child_pid_to_exec_file): Refactor as methods of inf_child_target. (inf_child_follow_fork): Delete. (inf_child_target::can_create_inferior) (inf_child_target::can_attach): New. (inf_child_target::has_all_memory, inf_child_target::has_memory) (inf_child_target::has_stack, inf_child_target::has_registers) (inf_child_target::has_execution): New. (inf_child_fileio_open, inf_child_fileio_pwrite) (inf_child_fileio_pread, inf_child_fileio_fstat) (inf_child_fileio_close, inf_child_fileio_unlink) (inf_child_fileio_readlink, inf_child_use_agent) (inf_child_can_use_agent): Refactor as methods of inf_child_target. (return_zero, inf_child_target): Delete. (inf_child_target::inf_child_target): New. * inf-child.h: Include "target.h". (inf_child_target): Delete function prototype. (inf_child_target): New class. (inf_child_open_target, inf_child_mourn_inferior) (inf_child_maybe_unpush_target): Delete. * inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New. (inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint) (inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior) (inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior) (inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach) (inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume) (inf_ptrace_wait, inf_ptrace_xfer_partial) (inf_ptrace_thread_alive, inf_ptrace_files_info) (inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as methods of inf_ptrace_target. (inf_ptrace_target): Delete function. * inf-ptrace.h: Include "inf-child.h". (inf_ptrace_target): Delete function declaration. (inf_ptrace_target): New class. (inf_ptrace_trad_target, inf_ptrace_detach_success): Delete. * linux-nat.c (linux_target): New. (linux_ops, linux_ops_saved, super_xfer_partial): Delete. (linux_nat_target::~linux_nat_target): New. (linux_child_post_attach, linux_child_post_startup_inferior) (linux_child_follow_fork, linux_child_insert_fork_catchpoint) (linux_child_remove_fork_catchpoint) (linux_child_insert_vfork_catchpoint) (linux_child_remove_vfork_catchpoint) (linux_child_insert_exec_catchpoint) (linux_child_remove_exec_catchpoint) (linux_child_set_syscall_catchpoint, linux_nat_pass_signals) (linux_nat_create_inferior, linux_nat_attach, linux_nat_detach) (linux_nat_resume, linux_nat_stopped_by_watchpoint) (linux_nat_stopped_data_address) (linux_nat_stopped_by_sw_breakpoint) (linux_nat_supports_stopped_by_sw_breakpoint) (linux_nat_stopped_by_hw_breakpoint) (linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait) (linux_nat_kill, linux_nat_mourn_inferior) (linux_nat_xfer_partial, linux_nat_thread_alive) (linux_nat_update_thread_list, linux_nat_pid_to_str) (linux_nat_thread_name, linux_child_pid_to_exec_file) (linux_child_static_tracepoint_markers_by_strid) (linux_nat_is_async_p, linux_nat_can_async_p) (linux_nat_supports_non_stop, linux_nat_always_non_stop_p) (linux_nat_supports_multi_process) (linux_nat_supports_disable_randomization, linux_nat_async) (linux_nat_stop, linux_nat_close, linux_nat_thread_address_space) (linux_nat_core_of_thread, linux_nat_filesystem_is_local) (linux_nat_fileio_open, linux_nat_fileio_readlink) (linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as methods of linux_nat_target. (linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial) (linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops parameter. (check_stopped_by_watchpoint): Adjust. (linux_xfer_partial): Delete. (linux_target_install_ops, linux_target, linux_nat_add_target): Delete. (linux_nat_target::linux_nat_target): New. * linux-nat.h: Include "inf-ptrace.h". (linux_nat_target): New. (linux_target, linux_target_install_ops, linux_nat_add_target): Delete function declarations. (linux_target): Declare global. * linux-thread-db.c (thread_db_target): New. (thread_db_target::thread_db_target): New. (thread_db_ops): Delete. (the_thread_db_target): New. (thread_db_detach, thread_db_wait, thread_db_mourn_inferior) (thread_db_update_thread_list, thread_db_pid_to_str) (thread_db_extra_thread_info) (thread_db_thread_handle_to_thread_info) (thread_db_get_thread_local_address, thread_db_get_ada_task_ptid) (thread_db_resume): Refactor as methods of thread_db_target. (init_thread_db_ops): Delete. (_initialize_thread_db): Remove reference to init_thread_db_ops. * x86-linux-nat.c: Don't include "linux-nat.h". (super_post_startup_inferior): Delete. (x86_linux_nat_target::~x86_linux_nat_target): New. (x86_linux_child_post_startup_inferior) (x86_linux_read_description, x86_linux_enable_btrace) (x86_linux_disable_btrace, x86_linux_teardown_btrace) (x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as methods of x86_linux_nat_target. (x86_linux_create_target): Delete. Bits folded ... (x86_linux_add_target): ... here. Now takes a linux_nat_target pointer. * x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h". (x86_linux_nat_target): New class. (x86_linux_create_target): Delete. (x86_linux_add_target): Now takes a linux_nat_target pointer. * x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint) (x86_region_ok_for_watchpoint, x86_stopped_data_address) (x86_stopped_by_watchpoint, x86_insert_hw_breakpoint) (x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint) (x86_stopped_by_hw_breakpoint): Remove target_ops parameter and make extern. (x86_use_watchpoints): Delete. * x86-nat.h: Include "breakpoint.h" and "target.h". (x86_use_watchpoints): Delete. (x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint) (x86_stopped_by_watchpoint, x86_stopped_data_address) (x86_insert_watchpoint, x86_remove_watchpoint) (x86_insert_hw_breakpoint, x86_remove_hw_breakpoint) (x86_stopped_by_hw_breakpoint): New declarations. (x86_nat_target): New template class. * ppc-linux-nat.c (ppc_linux_nat_target): New class. (the_ppc_linux_nat_target): New. (ppc_linux_fetch_inferior_registers) (ppc_linux_can_use_hw_breakpoint) (ppc_linux_region_ok_for_hw_watchpoint) (ppc_linux_ranged_break_num_registers) (ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint) (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_can_accel_watchpoint_condition) (ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint) (ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint) (ppc_linux_watchpoint_addr_within_range) (ppc_linux_masked_watch_num_registers) (ppc_linux_store_inferior_registers, ppc_linux_auxv_parse) (ppc_linux_read_description): Refactor as methods of ppc_linux_nat_target. (_initialize_ppc_linux_nat): Adjust. Set linux_target. * procfs.c (procfs_xfer_partial): Delete forward declaration. (procfs_target): New class. (the_procfs_target): New. (procfs_target): Delete function. (procfs_auxv_parse, procfs_attach, procfs_detach) (procfs_fetch_registers, procfs_store_registers, procfs_wait) (procfs_xfer_partial, procfs_resume, procfs_pass_signals) (procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior) (procfs_create_inferior, procfs_update_thread_list) (procfs_thread_alive, procfs_pid_to_str) (procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint) (procfs_stopped_data_address, procfs_insert_watchpoint) (procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint) (proc_find_memory_regions, procfs_info_proc) (procfs_make_note_section): Refactor as methods of procfs_target. (_initialize_procfs): Adjust. * sol-thread.c (sol_thread_target): New class. (sol_thread_ops): Now a sol_thread_target. (sol_thread_detach, sol_thread_resume, sol_thread_wait) (sol_thread_fetch_registers, sol_thread_store_registers) (sol_thread_xfer_partial, sol_thread_mourn_inferior) (sol_thread_alive, solaris_pid_to_str, sol_update_thread_list) (sol_get_ada_task_ptid): Refactor as methods of sol_thread_target. (init_sol_thread_ops): Delete. (_initialize_sol_thread): Adjust. Remove references to init_sol_thread_ops and complete_target_initialization. * windows-nat.c (windows_nat_target): New class. (windows_fetch_inferior_registers) (windows_store_inferior_registers, windows_resume, windows_wait) (windows_attach, windows_detach, windows_pid_to_exec_file) (windows_files_info, windows_create_inferior) (windows_mourn_inferior, windows_interrupt, windows_kill_inferior) (windows_close, windows_pid_to_str, windows_xfer_partial) (windows_get_tib_address, windows_get_ada_task_ptid) (windows_thread_name, windows_thread_alive): Refactor as windows_nat_target methods. (do_initial_windows_stuff): Adjust. (windows_target): Delete function. (_initialize_windows_nat): Adjust. * darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt) (darwin_mourn_inferior, darwin_kill_inferior) (darwin_create_inferior, darwin_attach, darwin_detach) (darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial) (darwin_pid_to_exec_file, darwin_get_ada_task_ptid) (darwin_supports_multi_process): Refactor as darwin_nat_target methods. (darwin_resume_to, darwin_files_info): Delete. (_initialize_darwin_inferior): Rename to ... (_initialize_darwin_nat): ... this. Adjust to C++ification. * darwin-nat.h: Include "inf-child.h". (darwin_nat_target): New class. (darwin_complete_target): Delete. * i386-darwin-nat.c (i386_darwin_nat_target): New class. (darwin_target): New. (i386_darwin_fetch_inferior_registers) (i386_darwin_store_inferior_registers): Refactor as methods of darwin_nat_target. (darwin_complete_target): Delete, with ... (_initialize_i386_darwin_nat): ... bits factored out here. * alpha-linux-nat.c (alpha_linux_nat_target): New class. (the_alpha_linux_nat_target): New. (alpha_linux_register_u_offset): Refactor as alpha_linux_nat_target method. (_initialize_alpha_linux_nat): Adjust. * linux-nat-trad.c (inf_ptrace_register_u_offset): Delete. (inf_ptrace_fetch_register, inf_ptrace_fetch_registers) (inf_ptrace_store_register, inf_ptrace_store_registers): Refact as methods of linux_nat_trad_target. (linux_trad_target): Delete. * linux-nat-trad.h (linux_trad_target): Delete function. (linux_nat_trad_target): New class. * mips-linux-nat.c (mips_linux_nat_target): New class. (super_fetch_registers, super_store_registers, super_close): Delete. (the_mips_linux_nat_target): New. (mips64_linux_regsets_fetch_registers) (mips64_linux_regsets_store_registers) (mips64_linux_fetch_registers, mips64_linux_store_registers) (mips_linux_register_u_offset, mips_linux_read_description) (mips_linux_can_use_hw_breakpoint) (mips_linux_stopped_by_watchpoint) (mips_linux_stopped_data_address) (mips_linux_region_ok_for_hw_watchpoint) (mips_linux_insert_watchpoint, mips_linux_remove_watchpoint) (mips_linux_close): Refactor as methods of mips_linux_nat. (_initialize_mips_linux_nat): Adjust to C++ification. * aix-thread.c (aix_thread_target): New class. (aix_thread_ops): Now an aix_thread_target. (aix_thread_detach, aix_thread_resume, aix_thread_wait) (aix_thread_fetch_registers, aix_thread_store_registers) (aix_thread_xfer_partial, aix_thread_mourn_inferior) (aix_thread_thread_alive, aix_thread_pid_to_str) (aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid): Refactor as methods of aix_thread_target. (init_aix_thread_ops): Delete. (_initialize_aix_thread): Remove references to init_aix_thread_ops and complete_target_initialization. * rs6000-nat.c (rs6000_xfer_shared_libraries): Delete. (rs6000_nat_target): New class. (the_rs6000_nat_target): New. (rs6000_fetch_inferior_registers, rs6000_store_inferior_registers) (rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior) (rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods. (super_create_inferior): Delete. (_initialize_rs6000_nat): Adjust to C++ification. * arm-linux-nat.c (arm_linux_nat_target): New class. (the_arm_linux_nat_target): New. (arm_linux_fetch_inferior_registers) (arm_linux_store_inferior_registers, arm_linux_read_description) (arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint) (arm_linux_remove_hw_breakpoint) (arm_linux_region_ok_for_hw_watchpoint) (arm_linux_insert_watchpoint, arm_linux_remove_watchpoint) (arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint) (arm_linux_watchpoint_addr_within_range): Refactor as methods of arm_linux_nat_target. (_initialize_arm_linux_nat): Adjust to C++ification. * aarch64-linux-nat.c (aarch64_linux_nat_target): New class. (the_aarch64_linux_nat_target): New. (aarch64_linux_fetch_inferior_registers) (aarch64_linux_store_inferior_registers) (aarch64_linux_child_post_startup_inferior) (aarch64_linux_read_description) (aarch64_linux_can_use_hw_breakpoint) (aarch64_linux_insert_hw_breakpoint) (aarch64_linux_remove_hw_breakpoint) (aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint) (aarch64_linux_region_ok_for_hw_watchpoint) (aarch64_linux_stopped_data_address) (aarch64_linux_stopped_by_watchpoint) (aarch64_linux_watchpoint_addr_within_range) (aarch64_linux_can_do_single_step): Refactor as methods of aarch64_linux_nat_target. (super_post_startup_inferior): Delete. (_initialize_aarch64_linux_nat): Adjust to C++ification. * hppa-linux-nat.c (hppa_linux_nat_target): New class. (the_hppa_linux_nat_target): New. (hppa_linux_fetch_inferior_registers) (hppa_linux_store_inferior_registers): Refactor as methods of hppa_linux_nat_target. (_initialize_hppa_linux_nat): Adjust to C++ification. * ia64-linux-nat.c (ia64_linux_nat_target): New class. (the_ia64_linux_nat_target): New. (ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint) (ia64_linux_stopped_data_address) (ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers) (ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as ia64_linux_nat_target methods. (super_xfer_partial): Delete. (_initialize_ia64_linux_nat): Adjust to C++ification. * m32r-linux-nat.c (m32r_linux_nat_target): New class. (the_m32r_linux_nat_target): New. (m32r_linux_fetch_inferior_registers) (m32r_linux_store_inferior_registers): Refactor as m32r_linux_nat_target methods. (_initialize_m32r_linux_nat): Adjust to C++ification. * m68k-linux-nat.c (m68k_linux_nat_target): New class. (the_m68k_linux_nat_target): New. (m68k_linux_fetch_inferior_registers) (m68k_linux_store_inferior_registers): Refactor as m68k_linux_nat_target methods. (_initialize_m68k_linux_nat): Adjust to C++ification. * s390-linux-nat.c (s390_linux_nat_target): New class. (the_s390_linux_nat_target): New. (s390_linux_fetch_inferior_registers) (s390_linux_store_inferior_registers, s390_stopped_by_watchpoint) (s390_insert_watchpoint, s390_remove_watchpoint) (s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint) (s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint) (s390_auxv_parse, s390_read_description): Refactor as methods of s390_linux_nat_target. (_initialize_s390_nat): Adjust to C++ification. * sparc-linux-nat.c (sparc_linux_nat_target): New class. (the_sparc_linux_nat_target): New. (_initialize_sparc_linux_nat): Adjust to C++ification. * sparc-nat.c (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers): Remove target_ops parameter. * sparc64-linux-nat.c (sparc64_linux_nat_target): New class. (the_sparc64_linux_nat_target): New. (_initialize_sparc64_linux_nat): Adjust to C++ification. * spu-linux-nat.c (spu_linux_nat_target): New class. (the_spu_linux_nat_target): New. (spu_child_post_startup_inferior, spu_child_post_attach) (spu_child_wait, spu_fetch_inferior_registers) (spu_store_inferior_registers, spu_xfer_partial) (spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target methods. (_initialize_spu_nat): Adjust to C++ification. * tilegx-linux-nat.c (tilegx_linux_nat_target): New class. (the_tilegx_linux_nat_target): New. (fetch_inferior_registers, store_inferior_registers): Refactor as methods. (_initialize_tile_linux_nat): Adjust to C++ification. * xtensa-linux-nat.c (xtensa_linux_nat_target): New class. (the_xtensa_linux_nat_target): New. (xtensa_linux_fetch_inferior_registers) (xtensa_linux_store_inferior_registers): Refactor as xtensa_linux_nat_target methods. (_initialize_xtensa_linux_nat): Adjust to C++ification. * fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete. (fbsd_pid_to_exec_file, fbsd_find_memory_regions) (fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial) (fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name) (fbsd_update_thread_list, fbsd_resume, fbsd_wait) (fbsd_stopped_by_sw_breakpoint) (fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork) (fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint) (fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint) (fbsd_post_startup_inferior, fbsd_post_attach) (fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint) (fbsd_set_syscall_catchpoint) (super_xfer_partial, super_resume, super_wait) (fbsd_supports_stopped_by_hw_breakpoint): Delete. (fbsd_handle_debug_trap): Remove target_ops parameter. (fbsd_nat_add_target): Delete. * fbsd-nat.h: Include "inf-ptrace.h". (fbsd_nat_add_target): Delete. (USE_SIGTRAP_SIGINFO): Define. (fbsd_nat_target): New class. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers) (amd64bsd_store_inferior_registers): Remove target_ops parameter. (amd64bsd_target): Delete. * amd64-bsd-nat.h: New file. * amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of "x86-bsd-nat.h". (amd64_fbsd_nat_target): New class. (the_amd64_fbsd_nat_target): New. (amd64fbsd_read_description): Refactor as method of amd64_fbsd_nat_target. (amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_amd64fbsd_nat): Adjust to C++ification. * amd64-nat.h (amd64bsd_target): Delete function declaration. * i386-bsd-nat.c (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Remove target_ops parameter. (i386bsd_target): Delete. * i386-bsd-nat.h (i386bsd_target): Delete function declaration. (i386bsd_fetch_inferior_registers) (i386bsd_store_inferior_registers): Declare. (i386_bsd_nat_target): New class. * i386-fbsd-nat.c (i386_fbsd_nat_target): New class. (the_i386_fbsd_nat_target): New. (i386fbsd_resume, i386fbsd_read_description): Refactor as i386_fbsd_nat_target methods. (i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New. (_initialize_i386fbsd_nat): Adjust to C++ification. * x86-bsd-nat.c (super_mourn_inferior): Delete. (x86bsd_mourn_inferior, x86bsd_target): Delete. (_initialize_x86_bsd_nat): Adjust to C++ification. * x86-bsd-nat.h: Include "x86-nat.h". (x86bsd_target): Delete declaration. (x86bsd_nat_target): New class. * aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class. (the_aarch64_fbsd_nat_target): New. (aarch64_fbsd_fetch_inferior_registers) (aarch64_fbsd_store_inferior_registers): Refactor as methods of aarch64_fbsd_nat_target. (_initialize_aarch64_fbsd_nat): Adjust to C++ification. * alpha-bsd-nat.c (alpha_bsd_nat_target): New class. (the_alpha_bsd_nat_target): New. (alphabsd_fetch_inferior_registers) (alphabsd_store_inferior_registers): Refactor as alpha_bsd_nat_target methods. (_initialize_alphabsd_nat): Refactor as methods of alpha_bsd_nat_target. * amd64-nbsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_nbsd_nat_target): New. (_initialize_amd64nbsd_nat): Adjust to C++ification. * amd64-obsd-nat.c: Include "amd64-bsd-nat.h". (the_amd64_obsd_nat_target): New. (_initialize_amd64obsd_nat): Adjust to C++ification. * arm-fbsd-nat.c (arm_fbsd_nat_target): New. (the_arm_fbsd_nat_target): New. (arm_fbsd_fetch_inferior_registers) (arm_fbsd_store_inferior_registers, arm_fbsd_read_description): (_initialize_arm_fbsd_nat): Refactor as methods of arm_fbsd_nat_target. (_initialize_arm_fbsd_nat): Adjust to C++ification. * arm-nbsd-nat.c (arm_netbsd_nat_target): New class. (the_arm_netbsd_nat_target): New. (armnbsd_fetch_registers, armnbsd_store_registers): Refactor as arm_netbsd_nat_target. (_initialize_arm_netbsd_nat): Adjust to C++ification. * hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class. (the_hppa_nbsd_nat_target): New. (hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as hppa_nbsd_nat_target methods. (_initialize_hppanbsd_nat): Adjust to C++ification. * hppa-obsd-nat.c (hppa_obsd_nat_target): New class. (the_hppa_obsd_nat_target): New. (hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as methods of hppa_obsd_nat_target. (_initialize_hppaobsd_nat): Adjust to C++ification. Use add_target. * i386-nbsd-nat.c (the_i386_nbsd_nat_target): New. (_initialize_i386nbsd_nat): Adjust to C++ification. Use add_target. * i386-obsd-nat.c (the_i386_obsd_nat_target): New. (_initialize_i386obsd_nat): Use add_target. * m68k-bsd-nat.c (m68k_bsd_nat_target): New class. (the_m68k_bsd_nat_target): New. (m68kbsd_fetch_inferior_registers) (m68kbsd_store_inferior_registers): Refactor as methods of m68k_bsd_nat_target. (_initialize_m68kbsd_nat): Adjust to C++ification. * mips-fbsd-nat.c (mips_fbsd_nat_target): New class. (the_mips_fbsd_nat_target): New. (mips_fbsd_fetch_inferior_registers) (mips_fbsd_store_inferior_registers): Refactor as methods of mips_fbsd_nat_target. (_initialize_mips_fbsd_nat): Adjust to C++ification. Use add_target. * mips-nbsd-nat.c (mips_nbsd_nat_target): New class. (the_mips_nbsd_nat_target): New. (mipsnbsd_fetch_inferior_registers) (mipsnbsd_store_inferior_registers): Refactor as methods of mips_nbsd_nat_target. (_initialize_mipsnbsd_nat): Adjust to C++ification. * mips64-obsd-nat.c (mips64_obsd_nat_target): New class. (the_mips64_obsd_nat_target): New. (mips64obsd_fetch_inferior_registers) (mips64obsd_store_inferior_registers): Refactor as methods of mips64_obsd_nat_target. (_initialize_mips64obsd_nat): Adjust to C++ification. Use add_target. * nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of nbsd_nat_target. * nbsd-nat.h: Include "inf-ptrace.h". (nbsd_nat_target): New class. * obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list) (obsd_wait): Refactor as methods of obsd_nat_target. (obsd_add_target): Delete. * obsd-nat.h: Include "inf-ptrace.h". (obsd_nat_target): New class. * ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class. (the_ppc_fbsd_nat_target): New. (ppcfbsd_fetch_inferior_registers) (ppcfbsd_store_inferior_registers): Refactor as methods of ppc_fbsd_nat_target. (_initialize_ppcfbsd_nat): Adjust to C++ification. Use add_target. * ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class. (the_ppc_nbsd_nat_target): New. (ppcnbsd_fetch_inferior_registers) (ppcnbsd_store_inferior_registers): Refactor as methods of ppc_nbsd_nat_target. (_initialize_ppcnbsd_nat): Adjust to C++ification. * ppc-obsd-nat.c (ppc_obsd_nat_target): New class. (the_ppc_obsd_nat_target): New. (ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as methods of ppc_obsd_nat_target. (_initialize_ppcobsd_nat): Adjust to C++ification. Use add_target. * sh-nbsd-nat.c (sh_nbsd_nat_target): New class. (the_sh_nbsd_nat_target): New. (shnbsd_fetch_inferior_registers) (shnbsd_store_inferior_registers): Refactor as methods of sh_nbsd_nat_target. (_initialize_shnbsd_nat): Adjust to C++ification. * sparc-nat.c (sparc_xfer_wcookie): Make extern. (inf_ptrace_xfer_partial): Delete. (sparc_xfer_partial, sparc_target): Delete. * sparc-nat.h (sparc_fetch_inferior_registers) (sparc_store_inferior_registers, sparc_xfer_wcookie): Declare. (sparc_target): Delete function declaration. (sparc_target): New template class. * sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New. (_initialize_sparcnbsd_nat): Adjust to C++ification. * sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New. (_initialize_sparc64fbsd_nat): Adjust to C++ification. Use add_target. * sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New. (_initialize_sparc64nbsd_nat): Adjust to C++ification. * sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New. (_initialize_sparc64obsd_nat): Adjust to C++ification. Use add_target. * vax-bsd-nat.c (vax_bsd_nat_target): New class. (the_vax_bsd_nat_target): New. (vaxbsd_fetch_inferior_registers) (vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target methods. (_initialize_vaxbsd_nat): Adjust to C++ification. * bsd-kvm.c (bsd_kvm_target): New class. (bsd_kvm_ops): Now a bsd_kvm_target. (bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial) (bsd_kvm_files_info, bsd_kvm_fetch_registers) (bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of bsd_kvm_target. (bsd_kvm_return_one): Delete. (bsd_kvm_add_target): Adjust to C++ification. * nto-procfs.c (nto_procfs_target, nto_procfs_target_native) (nto_procfs_target_procfs): New classes. (procfs_open_1, procfs_thread_alive, procfs_update_thread_list) (procfs_files_info, procfs_pid_to_exec_file, procfs_attach) (procfs_post_attach, procfs_wait, procfs_fetch_registers) (procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint) (procfs_remove_breakpoint, procfs_insert_hw_breakpoint) (procfs_remove_hw_breakpoint, procfs_resume) (procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt) (procfs_kill_inferior, procfs_store_registers) (procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor as methods of nto_procfs_target. (nto_procfs_ops): Now an nto_procfs_target_procfs. (nto_native_ops): Delete. (procfs_open, procfs_native_open): Delete. (nto_native_ops): Now an nto_procfs_target_native. (init_procfs_targets): Adjust to C++ification. (procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint) (procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint): Refactor as methods of nto_procfs_target. * go32-nat.c (go32_nat_target): New class. (the_go32_nat_target): New. (go32_attach, go32_resume, go32_wait, go32_fetch_registers) (go32_store_registers, go32_xfer_partial, go32_files_info) (go32_kill_inferior, go32_create_inferior, go32_mourn_inferior) (go32_terminal_init, go32_terminal_info, go32_terminal_inferior) (go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive) (go32_pid_to_str): Refactor as methods of go32_nat_target. (go32_target): Delete. (_initialize_go32_nat): Adjust to C++ification. * gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior) (gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach) (gnu_stop, gnu_thread_alive, gnu_xfer_partial) (gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of gnu_nat_target. (gnu_target): Delete. * gnu-nat.h (gnu_target): Delete. (gnu_nat_target): New class. * i386-gnu-nat.c (gnu_base_target): New. (i386_gnu_nat_target): New class. (the_i386_gnu_nat_target): New. (_initialize_i386gnu_nat): Adjust to C++ification. gdb/testsuite/ChangeLog: 2018-05-02 Pedro Alves <palves@redhat.com> * gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and to_log_command renames. * gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
2018-05-03 01:37:22 +02:00
/* See x86-nat.h. */
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
void
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
x86_set_debug_register_length (int len)
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
{
Remove all i386 debug register low level macros in config nm files. (I386_DR_LOW_SET_ADDR, I386_DR_LOW_RESET_ADDR): Remove. (I386_DR_LOW_GET_STATUS, I386_DR_LOW_SET_CONTROL): Remove. (I386_USE_GENERIC_WATCHPOIINTS): Remove. * i386-nat.h: New file (adapted from config/i386/nm-i386.h). (struct i386_dr_low_type): New type. (i386_dr_low): New global variable. * i386-nat.c (TARGET_HAS_DR_LEN_8): Update macro. (i386_insert_aligned_watchpoint): Replace i386 dr low macros by i386_dr_low struct variable fields. (i386_remove_aligned_watchpoint): Likewise. (i386_stopped_data_address): Likewise. (i386_stopped_by_hwbp): Likewise. (show_debug_regs_command_added): New static variable. (add_show_debug_regs_command): New static function. (i386_use_watchpoints): Call add_show_debug_regs_command if not done. (i386_set_debug_register_length): New function. (_initialize_i386_nat): Delete. * amd64-linux-nat.c: Include "i386-nat.h". (amd64_linux_dr_set_control): Change to static. (amd64_linux_dr_get_status): Change to static. (amd64_linux_dr_set_addr,amd64_linux_dr_reset_addr): Likewise. (_initialize_amd64_linux_nat): Set i386_dr_low variable fields. * go32-nat.c: Include "i386-nat.h". (go32_set_addr): Change to static. (go32_set_dr7): Change to static. Change arg type to unisgned long. (go32_get_dr6): Change to static. Change return type to unisnged long. (init_go32_ops): Set i386_dr_low variable fields. * i386-linux-nat.c: Include "i386-nat.h". (i386_linux_dr_set_control, i386_linux_dr_get_status): Change to static. (i386_linux_dr_set_addr, i386_linux_dr_reset_addr): Idem. (_initialize_i386_linux_nat): Set i386_dr_low variable fields. * i386bsd-nat.h: Declare functions used for i386_dr_low fields in i386fbsd-nat.c. * i386fbsd-nat.c: Include "i386-nat.h". (_initialize_i386fbsd_nat): Set i386_dr_low variable fields. * windows-nat.c: Include "i386-nat.h". (cygwin_set_dr, cygwin_get_dr6, cygwin_set_dr7): Add prototypes. Change to static. (cygwin_get_dr6): Change return type to unisnged long. (cygwin_set_dr7): Change arg type to unisgned long. (init_windows_ops): Set i386_dr_low function fields. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Call i386_set_debug_register_length. * i386-windows-nat.c (_initialize_i386_windows_nat): Likewise. * config/i386/nm-cygwin.h: Remove all I386_* macros. * config/i386/nm-cygwin64.h: Likewise. * config/i386/nm-fbsd.h: Likewise. * config/i386/nm-linux.h: Likewise. * config/i386/nm-i386.h: Remove completely. * config/i386/nm-go32.h: Remove completely. * config/i386/nm-linux64.h: Remove completely. * config/i386/go32.mh (NAT_FILE): Remove entry. * config/i386/linux64.h (NAT_FILE): Change to config/nm-linux.h.
2009-05-14 11:37:00 +02:00
/* This function should be called only once for each native target. */
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
gdb_assert (x86_dr_low.debug_register_length == 0);
Remove all i386 debug register low level macros in config nm files. (I386_DR_LOW_SET_ADDR, I386_DR_LOW_RESET_ADDR): Remove. (I386_DR_LOW_GET_STATUS, I386_DR_LOW_SET_CONTROL): Remove. (I386_USE_GENERIC_WATCHPOIINTS): Remove. * i386-nat.h: New file (adapted from config/i386/nm-i386.h). (struct i386_dr_low_type): New type. (i386_dr_low): New global variable. * i386-nat.c (TARGET_HAS_DR_LEN_8): Update macro. (i386_insert_aligned_watchpoint): Replace i386 dr low macros by i386_dr_low struct variable fields. (i386_remove_aligned_watchpoint): Likewise. (i386_stopped_data_address): Likewise. (i386_stopped_by_hwbp): Likewise. (show_debug_regs_command_added): New static variable. (add_show_debug_regs_command): New static function. (i386_use_watchpoints): Call add_show_debug_regs_command if not done. (i386_set_debug_register_length): New function. (_initialize_i386_nat): Delete. * amd64-linux-nat.c: Include "i386-nat.h". (amd64_linux_dr_set_control): Change to static. (amd64_linux_dr_get_status): Change to static. (amd64_linux_dr_set_addr,amd64_linux_dr_reset_addr): Likewise. (_initialize_amd64_linux_nat): Set i386_dr_low variable fields. * go32-nat.c: Include "i386-nat.h". (go32_set_addr): Change to static. (go32_set_dr7): Change to static. Change arg type to unisgned long. (go32_get_dr6): Change to static. Change return type to unisnged long. (init_go32_ops): Set i386_dr_low variable fields. * i386-linux-nat.c: Include "i386-nat.h". (i386_linux_dr_set_control, i386_linux_dr_get_status): Change to static. (i386_linux_dr_set_addr, i386_linux_dr_reset_addr): Idem. (_initialize_i386_linux_nat): Set i386_dr_low variable fields. * i386bsd-nat.h: Declare functions used for i386_dr_low fields in i386fbsd-nat.c. * i386fbsd-nat.c: Include "i386-nat.h". (_initialize_i386fbsd_nat): Set i386_dr_low variable fields. * windows-nat.c: Include "i386-nat.h". (cygwin_set_dr, cygwin_get_dr6, cygwin_set_dr7): Add prototypes. Change to static. (cygwin_get_dr6): Change return type to unisnged long. (cygwin_set_dr7): Change arg type to unisgned long. (init_windows_ops): Set i386_dr_low function fields. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Call i386_set_debug_register_length. * i386-windows-nat.c (_initialize_i386_windows_nat): Likewise. * config/i386/nm-cygwin.h: Remove all I386_* macros. * config/i386/nm-cygwin64.h: Likewise. * config/i386/nm-fbsd.h: Likewise. * config/i386/nm-linux.h: Likewise. * config/i386/nm-i386.h: Remove completely. * config/i386/nm-go32.h: Remove completely. * config/i386/nm-linux64.h: Remove completely. * config/i386/go32.mh (NAT_FILE): Remove entry. * config/i386/linux64.h (NAT_FILE): Change to config/nm-linux.h.
2009-05-14 11:37:00 +02:00
gdb_assert (len == 4 || len == 8);
Rename 32- and 64-bit Intel files from "i386" to "x86" This commit renames nine files that contain code used by both 32- and 64-bit Intel ports such that their names are prefixed with "x86" rather than "i386". All types, functions and variables within these files are likewise renamed such that their names are prefixed with "x86" rather than "i386". This makes GDB follow the convention used by gdbserver such that 32-bit Intel code lives in files called "i386-*", 64-bit Intel code lives in files called "amd64-*", and code for both 32- and 64-bit Intel lives in files called "x86-*". This commit only renames OS-independent files. The Linux ports of both GDB and gdbserver now follow the i386/amd64/x86 convention fully. Some ports still use the old convention where "i386" in file/function/ type/variable names can mean "32-bit only" or "32- and 64-bit" but I don't want to touch ports I can't fully test except where absolutely necessary. gdb/ChangeLog: * i386-nat.h: Renamed as... * x86-nat.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-nat.c: Renamed as... * x86-nat.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * common/i386-xstate.h: Renamed as... * common/x86-xstate.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-cpuid.h: Renamed as... * nat/x86-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-gcc-cpuid.h: Renamed as... * nat/x86-gcc-cpuid.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.h: Renamed as... * nat/x86-dregs.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * nat/i386-dregs.c: Renamed as... * nat/x86-dregs.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. gdb/gdbserver/ChangeLog: * i386-low.h: Renamed as... * x86-low.h: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated. * i386-low.c: Renamed as... * x86-low.c: New file. All type, function and variable name prefixes changed from "i386_" to "x86_". All references updated.
2014-08-19 16:16:11 +02:00
x86_dr_low.debug_register_length = len;
Remove all i386 debug register low level macros in config nm files. (I386_DR_LOW_SET_ADDR, I386_DR_LOW_RESET_ADDR): Remove. (I386_DR_LOW_GET_STATUS, I386_DR_LOW_SET_CONTROL): Remove. (I386_USE_GENERIC_WATCHPOIINTS): Remove. * i386-nat.h: New file (adapted from config/i386/nm-i386.h). (struct i386_dr_low_type): New type. (i386_dr_low): New global variable. * i386-nat.c (TARGET_HAS_DR_LEN_8): Update macro. (i386_insert_aligned_watchpoint): Replace i386 dr low macros by i386_dr_low struct variable fields. (i386_remove_aligned_watchpoint): Likewise. (i386_stopped_data_address): Likewise. (i386_stopped_by_hwbp): Likewise. (show_debug_regs_command_added): New static variable. (add_show_debug_regs_command): New static function. (i386_use_watchpoints): Call add_show_debug_regs_command if not done. (i386_set_debug_register_length): New function. (_initialize_i386_nat): Delete. * amd64-linux-nat.c: Include "i386-nat.h". (amd64_linux_dr_set_control): Change to static. (amd64_linux_dr_get_status): Change to static. (amd64_linux_dr_set_addr,amd64_linux_dr_reset_addr): Likewise. (_initialize_amd64_linux_nat): Set i386_dr_low variable fields. * go32-nat.c: Include "i386-nat.h". (go32_set_addr): Change to static. (go32_set_dr7): Change to static. Change arg type to unisgned long. (go32_get_dr6): Change to static. Change return type to unisnged long. (init_go32_ops): Set i386_dr_low variable fields. * i386-linux-nat.c: Include "i386-nat.h". (i386_linux_dr_set_control, i386_linux_dr_get_status): Change to static. (i386_linux_dr_set_addr, i386_linux_dr_reset_addr): Idem. (_initialize_i386_linux_nat): Set i386_dr_low variable fields. * i386bsd-nat.h: Declare functions used for i386_dr_low fields in i386fbsd-nat.c. * i386fbsd-nat.c: Include "i386-nat.h". (_initialize_i386fbsd_nat): Set i386_dr_low variable fields. * windows-nat.c: Include "i386-nat.h". (cygwin_set_dr, cygwin_get_dr6, cygwin_set_dr7): Add prototypes. Change to static. (cygwin_get_dr6): Change return type to unisnged long. (cygwin_set_dr7): Change arg type to unisgned long. (init_windows_ops): Set i386_dr_low function fields. * amd64-windows-nat.c (_initialize_amd64_windows_nat): Call i386_set_debug_register_length. * i386-windows-nat.c (_initialize_i386_windows_nat): Likewise. * config/i386/nm-cygwin.h: Remove all I386_* macros. * config/i386/nm-cygwin64.h: Likewise. * config/i386/nm-fbsd.h: Likewise. * config/i386/nm-linux.h: Likewise. * config/i386/nm-i386.h: Remove completely. * config/i386/nm-go32.h: Remove completely. * config/i386/nm-linux64.h: Remove completely. * config/i386/go32.mh (NAT_FILE): Remove entry. * config/i386/linux64.h (NAT_FILE): Change to config/nm-linux.h.
2009-05-14 11:37:00 +02:00
add_show_debug_regs_command ();
Unified support for hardware breakpoints and watchpoints on x86 targets: * config/i386/nm-i386.h: New file. * config/i386/nm-i386.h: (i386_cleanup_dregs) (i386_insert_watchpoint, i386_remove_watchpoint) (i386_region_ok_for_watchpoint, i386_stopped_by_hwbp) (i386_stopped_data_address, i386_insert_hw_breakpoint) (i386_remove_hw_breakpoint): Declare prototypes. [I386_USE_GENERIC_WATCHPOINTS] (TARGET_CAN_USE_HARDWARE_WATCHPOINT): Define if not already defined. (TARGET_REGION_OK_FOR_HW_WATCHPOINT, HAVE_CONTINUABLE_WATCHPOINT) (STOPPED_BY_WATCHPOINT, target_stopped_data_address) (target_insert_watchpoint, target_remove_watchpoint) (target_insert_hw_breakpoint, target_remove_hw_breakpoint): Define to call the appropriate i386_* functions. * i386-nat.c: New file. * i386-nat.c (I386_DR_CONTROL_MASK, I386_DR_LOCAL_ENABLE) (I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN) (I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): New macros. (dr_mirror, dr_status_mirror, dr_control_mirror, dr_ref_count) (maint_show_dr): New variables. (i386_cleanup_dregs, i386_show_dr, i386_length_and_rw_bits) (i386_insert_aligned_watchpoint, i386_remove_aligned_watchpoint) (i386_handle_nonaligned_watchpoint, i386_insert_watchpoint) (i386_remove_watchpoint, i386_region_ok_for_watchpoint) (i386_stopped_data_address, i386_stopped_by_hwbp) (i386_insert_hw_breakpoint, i386_remove_hw_breakpoint): New functions. (_initialize_i386_nat): New function. [I386_USE_GENERIC_WATCHPOINTS]: Add new maint command `show-debug-regs', sets maint_show_dr to non-zero value and activates debugging print-outs in functions which insert, remove, and test watchpoints and hardware breakpoints. * Makefile.in (i386-nat.o): New target. (ALLDEPFILES): Add i386-nat.o.
2001-03-21 12:36:58 +01:00
}