binutils-gdb/gdb/mem-break.c

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/* Simulate breakpoints by patching locations in the target system, for GDB.
Copyright (C) 1990-2013 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by John Gilmore.
1999-07-07 22:19:36 +02:00
This file is part of GDB.
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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
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(at your option) any later version.
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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.
1999-07-07 22:19:36 +02:00
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
2003-05-15 Andrew Cagney <cagney@redhat.com> * arch-utils.h (legacy_breakpoint_from_pc): Delete declaration. * target.h (memory_breakpoint_from_pc): Delete declaration. * mem-break.c (memory_breakpoint_from_pc): Delete function. * arch-utils.c (legacy_breakpoint_from_pc): Delete function. * monitor.c (monitor_insert_breakpoint): Use gdbarch_breakpoint_from_pc instead of memory_breakpoint_from_pc. * gdbarch.sh (BREAKPOINT_FROM_PC): Do not provide a default. * gdbarch.h, gdbarch.c: Re-generate. * sparc-tdep.c (sparc_breakpoint_from_pc): New function. (sparc_gdbarch_init): Set breakpoint_from_pc to sparc_breakpoint_from_pc. * config/sparc/tm-sparc.h (BREAKPOINT): Delete macro. (BREAKPOINT_FROM_PC): Define. (sparc_breakpoint_from_pc): Declare. * hppa-tdep.c (hppa_breakpoint_from_pc): New function. * config/pa/tm-hppa.h (hppa_breakpoint_from_pc): Declare. (BREAKPOINT_FROM_PC): Define. (BREAKPOINT): Delete macro. * target.h: Update comment. * s390-tdep.c (s390_gdbarch_init): Update comments. * remote.c: Update comments. * remote-mips.c: Update comments. * proc-api.c (write_with_trace): Do not check for a breakpoint. * mem-break.c: Update comment. * ia64-tdep.c (IA64_BREAKPOINT): Rename BREAKPOINT. (ia64_memory_insert_breakpoint): Update. * config/sparc/tm-sparc.h: Update comment. * config/pa/tm-hppa64.h: Update comment. * rs6000-tdep.c (BIG_BREAKPOINT, LITTLE_BREAKPOINT): Delete macro. (rs6000_breakpoint_from_pc): Update. * mips-tdep.c (BIG_BREAKPOINT, LITTLE_BREAKPOINT): Delete macro. (PMON_BIG_BREAKPOINT, PMON_LITTLE_BREAKPOINT): Delete macro. (IDT_LITTLE_BREAKPOINT, IDT_LITTLE_BREAKPOINT): Delete macro. (MIPS16_LITTLE_BREAKPOINT, MIPS16_BIG_BREAKPOINT): Delete macro. (mips_breakpoint_from_pc): Update. (mips_dump_tdep): Update.
2003-05-16 00:58:39 +02:00
/* This file is only useful if BREAKPOINT_FROM_PC is set. If not, we
punt. */
#include "symtab.h"
#include "breakpoint.h"
#include "inferior.h"
#include "target.h"
Problem after hitting breakpoint on Windows (with GDBserver) When debugging on Windows with GDBserver, the debugger starts failing after hitting a breakpoint. For instance: (gdb) b foo Breakpoint 1 at 0x40177e: file foo.adb, line 5. (gdb) cont Continuing. Breakpoint 1, foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP (gdb) n Program received signal SIGSEGV, Segmentation fault. 0x00401782 in foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP There are two issues: 1. While trying to re-insert a breakpoint that is still inserted in memory, insert_bp_location wipes out the breakpoint location's shadow_contents. As a consequence, we cannot restore the proper instruction when removing the breakpoint anymore. That's why the inferior's behavior changes when trying to resume after the breakpoint was hit. 2. mem-break.c:default_memory_insert_breakpoint passes a breakpoint location's shadow_contents as the buffer for a memory read. This reveals a limitation of the various memory-read target functions. This patch documents this limitation and adjust the two calls that seem to hit that limitation. gdb/ChangeLog: * breakpoint.c (breakpoint_xfer_memory): Add assertion. Update function description. (insert_bp_location): Do not wipe bl->target_info out. * mem-break.c: #include "gdb_string.h". (default_memory_insert_breakpoint): Do not call target_read_memory with a pointer to the breakpoint's shadow_contents buffer. Use a local buffer instead. * m32r-tdep.c (m32r_memory_insert_breakpoint): Ditto.
2012-03-15 19:33:45 +01:00
#include "gdb_string.h"
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
/* Insert a breakpoint on targets that don't have any better
breakpoint support. We read the contents of the target location
and stash it, then overwrite it with a breakpoint instruction.
BP_TGT->placed_address is the target location in the target
machine. BP_TGT->shadow_contents is some memory allocated for
saving the target contents. It is guaranteed by the caller to be
long enough to save BREAKPOINT_LEN bytes (this is accomplished via
BREAKPOINT_MAX). */
int
default_memory_insert_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
int val;
const unsigned char *bp;
Problem after hitting breakpoint on Windows (with GDBserver) When debugging on Windows with GDBserver, the debugger starts failing after hitting a breakpoint. For instance: (gdb) b foo Breakpoint 1 at 0x40177e: file foo.adb, line 5. (gdb) cont Continuing. Breakpoint 1, foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP (gdb) n Program received signal SIGSEGV, Segmentation fault. 0x00401782 in foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP There are two issues: 1. While trying to re-insert a breakpoint that is still inserted in memory, insert_bp_location wipes out the breakpoint location's shadow_contents. As a consequence, we cannot restore the proper instruction when removing the breakpoint anymore. That's why the inferior's behavior changes when trying to resume after the breakpoint was hit. 2. mem-break.c:default_memory_insert_breakpoint passes a breakpoint location's shadow_contents as the buffer for a memory read. This reveals a limitation of the various memory-read target functions. This patch documents this limitation and adjust the two calls that seem to hit that limitation. gdb/ChangeLog: * breakpoint.c (breakpoint_xfer_memory): Add assertion. Update function description. (insert_bp_location): Do not wipe bl->target_info out. * mem-break.c: #include "gdb_string.h". (default_memory_insert_breakpoint): Do not call target_read_memory with a pointer to the breakpoint's shadow_contents buffer. Use a local buffer instead. * m32r-tdep.c (m32r_memory_insert_breakpoint): Ditto.
2012-03-15 19:33:45 +01:00
gdb_byte *readbuf;
/* Determine appropriate breakpoint contents and size for this address. */
bp = gdbarch_breakpoint_from_pc
(gdbarch, &bp_tgt->placed_address, &bp_tgt->placed_size);
if (bp == NULL)
2005-02-10 Andrew Cagney <cagney@gnu.org> Mark up all error and warning messages. * ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update. * bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update. * core-aout.c, core-regset.c, corefile.c, corelow.c: Update. * cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update. * dbxread.c, demangle.c, doublest.c, dsrec.c: Update. * dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update. * event-top.c, exec.c, expprint.c, f-lang.c: Update. * f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update. * frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update. * gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update. * hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update. * hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update. * hpread.c, hpux-thread.c, i386-linux-nat.c: Update. * i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update. * i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update. * ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update. * infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update. * inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update. * kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update. * linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update. * m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update. * m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update. * maint.c, mdebugread.c, mem-break.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update. * nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update. * observer.c, ocd.c, p-lang.c, p-typeprint.c: Update. * p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update. * ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update. * remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update. * remote-rdp.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote-utils.h, remote.c: Update. * rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update. * ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update. * sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update. * solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update. * solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update. * somread.c, somsolib.c, source.c, stabsread.c: Update. * stack.c, std-regs.c, symfile-mem.c, symfile.c: Update. * symmisc.c, symtab.c, target.c, thread.c, top.c: Update. * tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update. * uw-thread.c, valarith.c, valops.c, valprint.c: Update. * value.c, varobj.c, version.in, win32-nat.c, wince.c: Update. * xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update. * cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update. * cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update. * mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update. * mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update. * mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update. * tui/tui-win.c: Update.
2005-02-11 05:06:14 +01:00
error (_("Software breakpoints not implemented for this target."));
Problem after hitting breakpoint on Windows (with GDBserver) When debugging on Windows with GDBserver, the debugger starts failing after hitting a breakpoint. For instance: (gdb) b foo Breakpoint 1 at 0x40177e: file foo.adb, line 5. (gdb) cont Continuing. Breakpoint 1, foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP (gdb) n Program received signal SIGSEGV, Segmentation fault. 0x00401782 in foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP There are two issues: 1. While trying to re-insert a breakpoint that is still inserted in memory, insert_bp_location wipes out the breakpoint location's shadow_contents. As a consequence, we cannot restore the proper instruction when removing the breakpoint anymore. That's why the inferior's behavior changes when trying to resume after the breakpoint was hit. 2. mem-break.c:default_memory_insert_breakpoint passes a breakpoint location's shadow_contents as the buffer for a memory read. This reveals a limitation of the various memory-read target functions. This patch documents this limitation and adjust the two calls that seem to hit that limitation. gdb/ChangeLog: * breakpoint.c (breakpoint_xfer_memory): Add assertion. Update function description. (insert_bp_location): Do not wipe bl->target_info out. * mem-break.c: #include "gdb_string.h". (default_memory_insert_breakpoint): Do not call target_read_memory with a pointer to the breakpoint's shadow_contents buffer. Use a local buffer instead. * m32r-tdep.c (m32r_memory_insert_breakpoint): Ditto.
2012-03-15 19:33:45 +01:00
/* Save the memory contents in the shadow_contents buffer and then
write the breakpoint instruction. */
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
bp_tgt->shadow_len = bp_tgt->placed_size;
Problem after hitting breakpoint on Windows (with GDBserver) When debugging on Windows with GDBserver, the debugger starts failing after hitting a breakpoint. For instance: (gdb) b foo Breakpoint 1 at 0x40177e: file foo.adb, line 5. (gdb) cont Continuing. Breakpoint 1, foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP (gdb) n Program received signal SIGSEGV, Segmentation fault. 0x00401782 in foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP There are two issues: 1. While trying to re-insert a breakpoint that is still inserted in memory, insert_bp_location wipes out the breakpoint location's shadow_contents. As a consequence, we cannot restore the proper instruction when removing the breakpoint anymore. That's why the inferior's behavior changes when trying to resume after the breakpoint was hit. 2. mem-break.c:default_memory_insert_breakpoint passes a breakpoint location's shadow_contents as the buffer for a memory read. This reveals a limitation of the various memory-read target functions. This patch documents this limitation and adjust the two calls that seem to hit that limitation. gdb/ChangeLog: * breakpoint.c (breakpoint_xfer_memory): Add assertion. Update function description. (insert_bp_location): Do not wipe bl->target_info out. * mem-break.c: #include "gdb_string.h". (default_memory_insert_breakpoint): Do not call target_read_memory with a pointer to the breakpoint's shadow_contents buffer. Use a local buffer instead. * m32r-tdep.c (m32r_memory_insert_breakpoint): Ditto.
2012-03-15 19:33:45 +01:00
readbuf = alloca (bp_tgt->placed_size);
val = target_read_memory (bp_tgt->placed_address, readbuf,
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
bp_tgt->placed_size);
if (val == 0)
Problem after hitting breakpoint on Windows (with GDBserver) When debugging on Windows with GDBserver, the debugger starts failing after hitting a breakpoint. For instance: (gdb) b foo Breakpoint 1 at 0x40177e: file foo.adb, line 5. (gdb) cont Continuing. Breakpoint 1, foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP (gdb) n Program received signal SIGSEGV, Segmentation fault. 0x00401782 in foo () at foo.adb:5 5 Put_Line ("Hello World."); -- STOP There are two issues: 1. While trying to re-insert a breakpoint that is still inserted in memory, insert_bp_location wipes out the breakpoint location's shadow_contents. As a consequence, we cannot restore the proper instruction when removing the breakpoint anymore. That's why the inferior's behavior changes when trying to resume after the breakpoint was hit. 2. mem-break.c:default_memory_insert_breakpoint passes a breakpoint location's shadow_contents as the buffer for a memory read. This reveals a limitation of the various memory-read target functions. This patch documents this limitation and adjust the two calls that seem to hit that limitation. gdb/ChangeLog: * breakpoint.c (breakpoint_xfer_memory): Add assertion. Update function description. (insert_bp_location): Do not wipe bl->target_info out. * mem-break.c: #include "gdb_string.h". (default_memory_insert_breakpoint): Do not call target_read_memory with a pointer to the breakpoint's shadow_contents buffer. Use a local buffer instead. * m32r-tdep.c (m32r_memory_insert_breakpoint): Ditto.
2012-03-15 19:33:45 +01:00
{
memcpy (bp_tgt->shadow_contents, readbuf, bp_tgt->placed_size);
val = target_write_raw_memory (bp_tgt->placed_address, bp,
bp_tgt->placed_size);
}
return val;
}
int
default_memory_remove_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
return target_write_raw_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
bp_tgt->placed_size);
}
1999-10-19 04:47:02 +02:00
int
* breakpoint.h (struct breakpoint): New member GDBARCH. * breakpoint.c: Include "arch-utils.h". (set_raw_breakpoint_without_location): Add GDBARCH parameter. Use it to set breakpoint architecture. (set_raw_breakpoint): Add GDBARCH parameter. (create_internal_breakpoint): Likewise. (create_catchpoint): Likewise. (create_fork_vfork_event_catchpoint): Likewise. (create_breakpoint): Likewise. (create_breakpoints): Likewise. (break_command_really): Likewise. (create_ada_exception_breakpoint): Likewise. Update local callers to pass architecture: (create_internal_breakpoint): Update. (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_thread_event_breakpoint): Update. (create_solib_event_breakpoint): Update. (create_catchpoint): Update. (create_fork_vfork_event_catchpoint): Update. (set_momentary_breakpoint): Update. (clone_momentary_breakpoint): Update. (create_breakpoint): Update. (create_breakpoints): Update. (break_command_really): Update. (break_command_1): Update. (set_breakpoint): Update. (watch_command_1): Update. (catch_fork_command_1): Update. (catch_exec_commnd_1): Update. (handle_gnu_v3_exceptions): Update. (create_ada_exception_breakpoint): Update. (catch_ada_exception_command): Update. (catch_assert_command): Update. (trace_command): Update. * breakpoint.h (struct bp_location): New member GDBARCH. * breakpoint.c (get_sal_arch): New function. (set_raw_breakpoint): Set location architecture. (add_location_to_breakpoint): Likewise. (clone_momentary_breakpoint): Likewise. (watch_command_1): Likewise. (update_watchpoint): Likewise. (bp_loc_is_permanent): Use location architecture instead of current_gdbarch. (adjust_breakpoint_address): Add GDBARCH parameter; use it instead of current_gdbarch. Update callers of adjust_breakpoint_address to pass breakpoint location architecture: (set_raw_breakpoint): Update. (watch_command_1): Update. * tracepoint.c: (collect_symbol): Add GDBARCH parameter, use instead of current_gdbarch. (add_local_symbols): Add GDBARCH parameter. Pass to collect_symbol. (encode_actions): Pass tracepoint architecture to add_local_symbols (encode_actions): Use tracepoint architecture instead of current_gdbarch. Pass it to add_local_symbols and collect_symbol. * breakpoint.h (struct breakpoint_ops): Replace last_addr parameter of print_one callback with last_loc. * breakpoint.c (print_one_breakpoint_location): Replace last_addr parameter with last_loc. (print_one_breakpoint): Likewise. (do_captured_breakpoint_query): Update call. (breakpoint_1): Pass last_loc instead of last_addr to print_one_breakpoint. Pass last location architecture instead of current_gdbarch to set_next_address. Update all implementations of the print_one callback: * breakpoint.c (print_one_catch_fork): Update. (print_one_catch_vfork): Update. (print_one_catch_exec): Update. (print_one_exception_catchpoint): Update. * ada-lang.c (print_one_exception): Update. (print_one_catch_exception): Update. (print_one_catch_exception_unhandled): Update. (print_one_catch_assert): Update. * breakpoint.c (print_one_breakpoint_location): Add PRINT_ADDRESS_BITS parameter. Use it instead of gdbarch_addr_bit (current_gdbarch). (print_one_breakpoint): Add PRINT_ADDRESS_BITS parameter and pass it to print_one_breakpoint_location. (breakpoint_address_bits): New function. (do_captured_breakpoint_query): Compute number of address bits to print and pass it to print_one_breakpoint. (breakpoint_1): Likewise. Use it instead of current_gdbarch. * breakpoint.h (create_thread_event_breakpoint): Add GDBARCH. * breakpoint.c (create_thread_event_breakpoint): Likewise. Update callers to create_thread_event_breakpoint: * aix-thread.c (pd_enable): Update. * linux-thread-db.c (enable_thread_event): Update. * breakpoint.h (create_solib_event_breakpoint): Add GDBARCH. * breakpoint.c (create_solib_event_breakpoint): Likewise. Update callers to create_solib_event_breakpoint: * solib-frv.c (enable_break, enable_break2): Update. * solib-pa64.c (pa64_solib_create_inferior_hook): Update. * solib-som.c (som_solib_create_inferior_hook): Update. * solib-darwin.c (darwin_solib_create_inferior_hook): Update. * solib-svr4.c (enable_break): Update. * breakpoint.h (insert_single_step_breakpoint): Add GDBARCH. * breakpoint.c (insert_single_step_breakpoint): Likewise. Update callers to insert_single_step_breakpoint: * alpha-tdep.c (alpha_software_single_step): Update. * arm-linux-tdep.c (arm_linux_software_single_step): Update. * arm-tdep.c (arm_software_single_step): Update. * cris-tdep.c (cris_software_single_step): Update. * rs6000-aix-tdep.c (rs6000_software_single_step): Update. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Update. * sparc-tdep.c (sparc_software_single_step): Update. * spu-tdep.c (spu_software_single_step): Update. * mips-tdep.c (deal_with_atomic_sequence): Add GDBARCH parameter. Pass it to insert_single_step_breakpoint. (mips_software_single_step): Pass architecture to deal_with_atomic_sequence and insert_single_step_breakpoint. * breakpoint.h (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. * breakpoint.c (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. Update callers to deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint: * breakpoint.c (single_step_gdbarch): New static variable. (insert_single_step_breakpoint): Pass GDBARCH parameter to deprecated_insert_raw_breakpoint. Store it in single_step_gdbarch. (remove_single_step_breakpoints): Pass architecture stored in single_step_gdbarch to deprecated_remove_raw_breakpoint. * rs6000-nat.c (exec_one_dummy_insn): Update. * solib-irix.c (enable_break, disable_break): Update. * procfs.c (procfs_mourn_inferior): Update. (remove_dbx_link_breakpoint): Update. * breakpoint.h (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. * breakpoint.c (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. Update callers to set_breakpoint, set_momentary_breakpoint and set_momentary_breakpoint_at_pc: * breakpoint.c (set_momentary_breakpoint_at_pc): Update. (until_break_command): Update. * infcall.c (call_function_by_hand): Update. * infcmd.c (finish_backward, finish_forward): Update. * infrun.c (insert_step_resume_breakpoint_at_sal): Add GDBARCH parameter. Pass it to set_momentary_breakpoint. (insert_longjmp_resume_breakpoint): Add GDBARCH parameter. Pass it to set_momentary_breakpoint_at_pc. (handle_inferior_event): Update. (insert_step_resume_breakpoint_at_frame): Update. (insert_step_resume_breakpoint_at_caller): Update.. * mi/mi-cmd-break.c: Include "arch-utils.h". (mi_cmd_break_insert): Update. * target.h (struct target_ops): Add GDBARCH parameter to to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint, and to_remove_hw_breakpoint members. (target_insert_breakpoint, target_remove_breakpoint, target_insert_hw_breakpoint, target_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (memory_remove_breakpoint, memory_insert_breakpoint): Add GDBARCH parameter. * target.c (debug_to_insert_breakpoint, debug_to_remove_breakpoint, debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (update_current_target): Update function signature. * breakpoint.c (insert_bp_location, remove_breakpoint, deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint): Pass architecture to target_ routines. Update all implementations of the target breakpoint routines to take GDBARCH parameter and use it instead of GDBARCH as appropriate: * corelow.c (ignore): Update. * exec.c (ignore): Update. * mem-break.c (memory_insert_breakpoint): Update. (memory_remove_breakpoint): Update. * monitor.c (monitor_insert_breakpoint): Update. (monitor_remove_breakpoint): Update. * record.c (record_insert_breakpoint): Update. (record_beneath_to_insert_breakpoint): Update. (record_remove_breakpoint): Update. (record_beneath_to_remove_breakpoint): Update. * remote.c (remote_insert_breakpoint): Update. (remote_remove_breakpoint): Update. (remote_insert_hw_breakpoint): Update. (remote_remove_hw_breakpoint): Update. * remote-m32r-sdi.c (m32r_insert_breakpoint): Update. (m32r_remove_breakpoint): Update. * remote-mips.c (mips_insert_breakpoint): Update. (mips_remove_breakpoint): Update. * i386-nat.c (i386_insert_hw_breakpoint): Update. (i386_remove_hw_breakpoint): Update. * nto-procfs.c (procfs_insert_breakpoint): Update. (procfs_remove_breakpoint): Update. (procfs_insert_hw_breakpoint): Update. (procfs_remove_hw_breakpoint): Update. doc/ChangeLog: * gdbint.texi (Examples of Use of @code{ui_out} functions): Update example code extrated from breakpoint.c.
2009-07-02 19:12:28 +02:00
memory_insert_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
1999-10-19 04:47:02 +02:00
{
* breakpoint.h (struct breakpoint): New member GDBARCH. * breakpoint.c: Include "arch-utils.h". (set_raw_breakpoint_without_location): Add GDBARCH parameter. Use it to set breakpoint architecture. (set_raw_breakpoint): Add GDBARCH parameter. (create_internal_breakpoint): Likewise. (create_catchpoint): Likewise. (create_fork_vfork_event_catchpoint): Likewise. (create_breakpoint): Likewise. (create_breakpoints): Likewise. (break_command_really): Likewise. (create_ada_exception_breakpoint): Likewise. Update local callers to pass architecture: (create_internal_breakpoint): Update. (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_thread_event_breakpoint): Update. (create_solib_event_breakpoint): Update. (create_catchpoint): Update. (create_fork_vfork_event_catchpoint): Update. (set_momentary_breakpoint): Update. (clone_momentary_breakpoint): Update. (create_breakpoint): Update. (create_breakpoints): Update. (break_command_really): Update. (break_command_1): Update. (set_breakpoint): Update. (watch_command_1): Update. (catch_fork_command_1): Update. (catch_exec_commnd_1): Update. (handle_gnu_v3_exceptions): Update. (create_ada_exception_breakpoint): Update. (catch_ada_exception_command): Update. (catch_assert_command): Update. (trace_command): Update. * breakpoint.h (struct bp_location): New member GDBARCH. * breakpoint.c (get_sal_arch): New function. (set_raw_breakpoint): Set location architecture. (add_location_to_breakpoint): Likewise. (clone_momentary_breakpoint): Likewise. (watch_command_1): Likewise. (update_watchpoint): Likewise. (bp_loc_is_permanent): Use location architecture instead of current_gdbarch. (adjust_breakpoint_address): Add GDBARCH parameter; use it instead of current_gdbarch. Update callers of adjust_breakpoint_address to pass breakpoint location architecture: (set_raw_breakpoint): Update. (watch_command_1): Update. * tracepoint.c: (collect_symbol): Add GDBARCH parameter, use instead of current_gdbarch. (add_local_symbols): Add GDBARCH parameter. Pass to collect_symbol. (encode_actions): Pass tracepoint architecture to add_local_symbols (encode_actions): Use tracepoint architecture instead of current_gdbarch. Pass it to add_local_symbols and collect_symbol. * breakpoint.h (struct breakpoint_ops): Replace last_addr parameter of print_one callback with last_loc. * breakpoint.c (print_one_breakpoint_location): Replace last_addr parameter with last_loc. (print_one_breakpoint): Likewise. (do_captured_breakpoint_query): Update call. (breakpoint_1): Pass last_loc instead of last_addr to print_one_breakpoint. Pass last location architecture instead of current_gdbarch to set_next_address. Update all implementations of the print_one callback: * breakpoint.c (print_one_catch_fork): Update. (print_one_catch_vfork): Update. (print_one_catch_exec): Update. (print_one_exception_catchpoint): Update. * ada-lang.c (print_one_exception): Update. (print_one_catch_exception): Update. (print_one_catch_exception_unhandled): Update. (print_one_catch_assert): Update. * breakpoint.c (print_one_breakpoint_location): Add PRINT_ADDRESS_BITS parameter. Use it instead of gdbarch_addr_bit (current_gdbarch). (print_one_breakpoint): Add PRINT_ADDRESS_BITS parameter and pass it to print_one_breakpoint_location. (breakpoint_address_bits): New function. (do_captured_breakpoint_query): Compute number of address bits to print and pass it to print_one_breakpoint. (breakpoint_1): Likewise. Use it instead of current_gdbarch. * breakpoint.h (create_thread_event_breakpoint): Add GDBARCH. * breakpoint.c (create_thread_event_breakpoint): Likewise. Update callers to create_thread_event_breakpoint: * aix-thread.c (pd_enable): Update. * linux-thread-db.c (enable_thread_event): Update. * breakpoint.h (create_solib_event_breakpoint): Add GDBARCH. * breakpoint.c (create_solib_event_breakpoint): Likewise. Update callers to create_solib_event_breakpoint: * solib-frv.c (enable_break, enable_break2): Update. * solib-pa64.c (pa64_solib_create_inferior_hook): Update. * solib-som.c (som_solib_create_inferior_hook): Update. * solib-darwin.c (darwin_solib_create_inferior_hook): Update. * solib-svr4.c (enable_break): Update. * breakpoint.h (insert_single_step_breakpoint): Add GDBARCH. * breakpoint.c (insert_single_step_breakpoint): Likewise. Update callers to insert_single_step_breakpoint: * alpha-tdep.c (alpha_software_single_step): Update. * arm-linux-tdep.c (arm_linux_software_single_step): Update. * arm-tdep.c (arm_software_single_step): Update. * cris-tdep.c (cris_software_single_step): Update. * rs6000-aix-tdep.c (rs6000_software_single_step): Update. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Update. * sparc-tdep.c (sparc_software_single_step): Update. * spu-tdep.c (spu_software_single_step): Update. * mips-tdep.c (deal_with_atomic_sequence): Add GDBARCH parameter. Pass it to insert_single_step_breakpoint. (mips_software_single_step): Pass architecture to deal_with_atomic_sequence and insert_single_step_breakpoint. * breakpoint.h (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. * breakpoint.c (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. Update callers to deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint: * breakpoint.c (single_step_gdbarch): New static variable. (insert_single_step_breakpoint): Pass GDBARCH parameter to deprecated_insert_raw_breakpoint. Store it in single_step_gdbarch. (remove_single_step_breakpoints): Pass architecture stored in single_step_gdbarch to deprecated_remove_raw_breakpoint. * rs6000-nat.c (exec_one_dummy_insn): Update. * solib-irix.c (enable_break, disable_break): Update. * procfs.c (procfs_mourn_inferior): Update. (remove_dbx_link_breakpoint): Update. * breakpoint.h (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. * breakpoint.c (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. Update callers to set_breakpoint, set_momentary_breakpoint and set_momentary_breakpoint_at_pc: * breakpoint.c (set_momentary_breakpoint_at_pc): Update. (until_break_command): Update. * infcall.c (call_function_by_hand): Update. * infcmd.c (finish_backward, finish_forward): Update. * infrun.c (insert_step_resume_breakpoint_at_sal): Add GDBARCH parameter. Pass it to set_momentary_breakpoint. (insert_longjmp_resume_breakpoint): Add GDBARCH parameter. Pass it to set_momentary_breakpoint_at_pc. (handle_inferior_event): Update. (insert_step_resume_breakpoint_at_frame): Update. (insert_step_resume_breakpoint_at_caller): Update.. * mi/mi-cmd-break.c: Include "arch-utils.h". (mi_cmd_break_insert): Update. * target.h (struct target_ops): Add GDBARCH parameter to to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint, and to_remove_hw_breakpoint members. (target_insert_breakpoint, target_remove_breakpoint, target_insert_hw_breakpoint, target_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (memory_remove_breakpoint, memory_insert_breakpoint): Add GDBARCH parameter. * target.c (debug_to_insert_breakpoint, debug_to_remove_breakpoint, debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (update_current_target): Update function signature. * breakpoint.c (insert_bp_location, remove_breakpoint, deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint): Pass architecture to target_ routines. Update all implementations of the target breakpoint routines to take GDBARCH parameter and use it instead of GDBARCH as appropriate: * corelow.c (ignore): Update. * exec.c (ignore): Update. * mem-break.c (memory_insert_breakpoint): Update. (memory_remove_breakpoint): Update. * monitor.c (monitor_insert_breakpoint): Update. (monitor_remove_breakpoint): Update. * record.c (record_insert_breakpoint): Update. (record_beneath_to_insert_breakpoint): Update. (record_remove_breakpoint): Update. (record_beneath_to_remove_breakpoint): Update. * remote.c (remote_insert_breakpoint): Update. (remote_remove_breakpoint): Update. (remote_insert_hw_breakpoint): Update. (remote_remove_hw_breakpoint): Update. * remote-m32r-sdi.c (m32r_insert_breakpoint): Update. (m32r_remove_breakpoint): Update. * remote-mips.c (mips_insert_breakpoint): Update. (mips_remove_breakpoint): Update. * i386-nat.c (i386_insert_hw_breakpoint): Update. (i386_remove_hw_breakpoint): Update. * nto-procfs.c (procfs_insert_breakpoint): Update. (procfs_remove_breakpoint): Update. (procfs_insert_hw_breakpoint): Update. (procfs_remove_hw_breakpoint): Update. doc/ChangeLog: * gdbint.texi (Examples of Use of @code{ui_out} functions): Update example code extrated from breakpoint.c.
2009-07-02 19:12:28 +02:00
return gdbarch_memory_insert_breakpoint (gdbarch, bp_tgt);
1999-10-19 04:47:02 +02:00
}
int
* breakpoint.h (struct breakpoint): New member GDBARCH. * breakpoint.c: Include "arch-utils.h". (set_raw_breakpoint_without_location): Add GDBARCH parameter. Use it to set breakpoint architecture. (set_raw_breakpoint): Add GDBARCH parameter. (create_internal_breakpoint): Likewise. (create_catchpoint): Likewise. (create_fork_vfork_event_catchpoint): Likewise. (create_breakpoint): Likewise. (create_breakpoints): Likewise. (break_command_really): Likewise. (create_ada_exception_breakpoint): Likewise. Update local callers to pass architecture: (create_internal_breakpoint): Update. (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_thread_event_breakpoint): Update. (create_solib_event_breakpoint): Update. (create_catchpoint): Update. (create_fork_vfork_event_catchpoint): Update. (set_momentary_breakpoint): Update. (clone_momentary_breakpoint): Update. (create_breakpoint): Update. (create_breakpoints): Update. (break_command_really): Update. (break_command_1): Update. (set_breakpoint): Update. (watch_command_1): Update. (catch_fork_command_1): Update. (catch_exec_commnd_1): Update. (handle_gnu_v3_exceptions): Update. (create_ada_exception_breakpoint): Update. (catch_ada_exception_command): Update. (catch_assert_command): Update. (trace_command): Update. * breakpoint.h (struct bp_location): New member GDBARCH. * breakpoint.c (get_sal_arch): New function. (set_raw_breakpoint): Set location architecture. (add_location_to_breakpoint): Likewise. (clone_momentary_breakpoint): Likewise. (watch_command_1): Likewise. (update_watchpoint): Likewise. (bp_loc_is_permanent): Use location architecture instead of current_gdbarch. (adjust_breakpoint_address): Add GDBARCH parameter; use it instead of current_gdbarch. Update callers of adjust_breakpoint_address to pass breakpoint location architecture: (set_raw_breakpoint): Update. (watch_command_1): Update. * tracepoint.c: (collect_symbol): Add GDBARCH parameter, use instead of current_gdbarch. (add_local_symbols): Add GDBARCH parameter. Pass to collect_symbol. (encode_actions): Pass tracepoint architecture to add_local_symbols (encode_actions): Use tracepoint architecture instead of current_gdbarch. Pass it to add_local_symbols and collect_symbol. * breakpoint.h (struct breakpoint_ops): Replace last_addr parameter of print_one callback with last_loc. * breakpoint.c (print_one_breakpoint_location): Replace last_addr parameter with last_loc. (print_one_breakpoint): Likewise. (do_captured_breakpoint_query): Update call. (breakpoint_1): Pass last_loc instead of last_addr to print_one_breakpoint. Pass last location architecture instead of current_gdbarch to set_next_address. Update all implementations of the print_one callback: * breakpoint.c (print_one_catch_fork): Update. (print_one_catch_vfork): Update. (print_one_catch_exec): Update. (print_one_exception_catchpoint): Update. * ada-lang.c (print_one_exception): Update. (print_one_catch_exception): Update. (print_one_catch_exception_unhandled): Update. (print_one_catch_assert): Update. * breakpoint.c (print_one_breakpoint_location): Add PRINT_ADDRESS_BITS parameter. Use it instead of gdbarch_addr_bit (current_gdbarch). (print_one_breakpoint): Add PRINT_ADDRESS_BITS parameter and pass it to print_one_breakpoint_location. (breakpoint_address_bits): New function. (do_captured_breakpoint_query): Compute number of address bits to print and pass it to print_one_breakpoint. (breakpoint_1): Likewise. Use it instead of current_gdbarch. * breakpoint.h (create_thread_event_breakpoint): Add GDBARCH. * breakpoint.c (create_thread_event_breakpoint): Likewise. Update callers to create_thread_event_breakpoint: * aix-thread.c (pd_enable): Update. * linux-thread-db.c (enable_thread_event): Update. * breakpoint.h (create_solib_event_breakpoint): Add GDBARCH. * breakpoint.c (create_solib_event_breakpoint): Likewise. Update callers to create_solib_event_breakpoint: * solib-frv.c (enable_break, enable_break2): Update. * solib-pa64.c (pa64_solib_create_inferior_hook): Update. * solib-som.c (som_solib_create_inferior_hook): Update. * solib-darwin.c (darwin_solib_create_inferior_hook): Update. * solib-svr4.c (enable_break): Update. * breakpoint.h (insert_single_step_breakpoint): Add GDBARCH. * breakpoint.c (insert_single_step_breakpoint): Likewise. Update callers to insert_single_step_breakpoint: * alpha-tdep.c (alpha_software_single_step): Update. * arm-linux-tdep.c (arm_linux_software_single_step): Update. * arm-tdep.c (arm_software_single_step): Update. * cris-tdep.c (cris_software_single_step): Update. * rs6000-aix-tdep.c (rs6000_software_single_step): Update. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Update. * sparc-tdep.c (sparc_software_single_step): Update. * spu-tdep.c (spu_software_single_step): Update. * mips-tdep.c (deal_with_atomic_sequence): Add GDBARCH parameter. Pass it to insert_single_step_breakpoint. (mips_software_single_step): Pass architecture to deal_with_atomic_sequence and insert_single_step_breakpoint. * breakpoint.h (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. * breakpoint.c (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. Update callers to deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint: * breakpoint.c (single_step_gdbarch): New static variable. (insert_single_step_breakpoint): Pass GDBARCH parameter to deprecated_insert_raw_breakpoint. Store it in single_step_gdbarch. (remove_single_step_breakpoints): Pass architecture stored in single_step_gdbarch to deprecated_remove_raw_breakpoint. * rs6000-nat.c (exec_one_dummy_insn): Update. * solib-irix.c (enable_break, disable_break): Update. * procfs.c (procfs_mourn_inferior): Update. (remove_dbx_link_breakpoint): Update. * breakpoint.h (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. * breakpoint.c (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. Update callers to set_breakpoint, set_momentary_breakpoint and set_momentary_breakpoint_at_pc: * breakpoint.c (set_momentary_breakpoint_at_pc): Update. (until_break_command): Update. * infcall.c (call_function_by_hand): Update. * infcmd.c (finish_backward, finish_forward): Update. * infrun.c (insert_step_resume_breakpoint_at_sal): Add GDBARCH parameter. Pass it to set_momentary_breakpoint. (insert_longjmp_resume_breakpoint): Add GDBARCH parameter. Pass it to set_momentary_breakpoint_at_pc. (handle_inferior_event): Update. (insert_step_resume_breakpoint_at_frame): Update. (insert_step_resume_breakpoint_at_caller): Update.. * mi/mi-cmd-break.c: Include "arch-utils.h". (mi_cmd_break_insert): Update. * target.h (struct target_ops): Add GDBARCH parameter to to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint, and to_remove_hw_breakpoint members. (target_insert_breakpoint, target_remove_breakpoint, target_insert_hw_breakpoint, target_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (memory_remove_breakpoint, memory_insert_breakpoint): Add GDBARCH parameter. * target.c (debug_to_insert_breakpoint, debug_to_remove_breakpoint, debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (update_current_target): Update function signature. * breakpoint.c (insert_bp_location, remove_breakpoint, deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint): Pass architecture to target_ routines. Update all implementations of the target breakpoint routines to take GDBARCH parameter and use it instead of GDBARCH as appropriate: * corelow.c (ignore): Update. * exec.c (ignore): Update. * mem-break.c (memory_insert_breakpoint): Update. (memory_remove_breakpoint): Update. * monitor.c (monitor_insert_breakpoint): Update. (monitor_remove_breakpoint): Update. * record.c (record_insert_breakpoint): Update. (record_beneath_to_insert_breakpoint): Update. (record_remove_breakpoint): Update. (record_beneath_to_remove_breakpoint): Update. * remote.c (remote_insert_breakpoint): Update. (remote_remove_breakpoint): Update. (remote_insert_hw_breakpoint): Update. (remote_remove_hw_breakpoint): Update. * remote-m32r-sdi.c (m32r_insert_breakpoint): Update. (m32r_remove_breakpoint): Update. * remote-mips.c (mips_insert_breakpoint): Update. (mips_remove_breakpoint): Update. * i386-nat.c (i386_insert_hw_breakpoint): Update. (i386_remove_hw_breakpoint): Update. * nto-procfs.c (procfs_insert_breakpoint): Update. (procfs_remove_breakpoint): Update. (procfs_insert_hw_breakpoint): Update. (procfs_remove_hw_breakpoint): Update. doc/ChangeLog: * gdbint.texi (Examples of Use of @code{ui_out} functions): Update example code extrated from breakpoint.c.
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memory_remove_breakpoint (struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
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{
* breakpoint.h (struct breakpoint): New member GDBARCH. * breakpoint.c: Include "arch-utils.h". (set_raw_breakpoint_without_location): Add GDBARCH parameter. Use it to set breakpoint architecture. (set_raw_breakpoint): Add GDBARCH parameter. (create_internal_breakpoint): Likewise. (create_catchpoint): Likewise. (create_fork_vfork_event_catchpoint): Likewise. (create_breakpoint): Likewise. (create_breakpoints): Likewise. (break_command_really): Likewise. (create_ada_exception_breakpoint): Likewise. Update local callers to pass architecture: (create_internal_breakpoint): Update. (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_thread_event_breakpoint): Update. (create_solib_event_breakpoint): Update. (create_catchpoint): Update. (create_fork_vfork_event_catchpoint): Update. (set_momentary_breakpoint): Update. (clone_momentary_breakpoint): Update. (create_breakpoint): Update. (create_breakpoints): Update. (break_command_really): Update. (break_command_1): Update. (set_breakpoint): Update. (watch_command_1): Update. (catch_fork_command_1): Update. (catch_exec_commnd_1): Update. (handle_gnu_v3_exceptions): Update. (create_ada_exception_breakpoint): Update. (catch_ada_exception_command): Update. (catch_assert_command): Update. (trace_command): Update. * breakpoint.h (struct bp_location): New member GDBARCH. * breakpoint.c (get_sal_arch): New function. (set_raw_breakpoint): Set location architecture. (add_location_to_breakpoint): Likewise. (clone_momentary_breakpoint): Likewise. (watch_command_1): Likewise. (update_watchpoint): Likewise. (bp_loc_is_permanent): Use location architecture instead of current_gdbarch. (adjust_breakpoint_address): Add GDBARCH parameter; use it instead of current_gdbarch. Update callers of adjust_breakpoint_address to pass breakpoint location architecture: (set_raw_breakpoint): Update. (watch_command_1): Update. * tracepoint.c: (collect_symbol): Add GDBARCH parameter, use instead of current_gdbarch. (add_local_symbols): Add GDBARCH parameter. Pass to collect_symbol. (encode_actions): Pass tracepoint architecture to add_local_symbols (encode_actions): Use tracepoint architecture instead of current_gdbarch. Pass it to add_local_symbols and collect_symbol. * breakpoint.h (struct breakpoint_ops): Replace last_addr parameter of print_one callback with last_loc. * breakpoint.c (print_one_breakpoint_location): Replace last_addr parameter with last_loc. (print_one_breakpoint): Likewise. (do_captured_breakpoint_query): Update call. (breakpoint_1): Pass last_loc instead of last_addr to print_one_breakpoint. Pass last location architecture instead of current_gdbarch to set_next_address. Update all implementations of the print_one callback: * breakpoint.c (print_one_catch_fork): Update. (print_one_catch_vfork): Update. (print_one_catch_exec): Update. (print_one_exception_catchpoint): Update. * ada-lang.c (print_one_exception): Update. (print_one_catch_exception): Update. (print_one_catch_exception_unhandled): Update. (print_one_catch_assert): Update. * breakpoint.c (print_one_breakpoint_location): Add PRINT_ADDRESS_BITS parameter. Use it instead of gdbarch_addr_bit (current_gdbarch). (print_one_breakpoint): Add PRINT_ADDRESS_BITS parameter and pass it to print_one_breakpoint_location. (breakpoint_address_bits): New function. (do_captured_breakpoint_query): Compute number of address bits to print and pass it to print_one_breakpoint. (breakpoint_1): Likewise. Use it instead of current_gdbarch. * breakpoint.h (create_thread_event_breakpoint): Add GDBARCH. * breakpoint.c (create_thread_event_breakpoint): Likewise. Update callers to create_thread_event_breakpoint: * aix-thread.c (pd_enable): Update. * linux-thread-db.c (enable_thread_event): Update. * breakpoint.h (create_solib_event_breakpoint): Add GDBARCH. * breakpoint.c (create_solib_event_breakpoint): Likewise. Update callers to create_solib_event_breakpoint: * solib-frv.c (enable_break, enable_break2): Update. * solib-pa64.c (pa64_solib_create_inferior_hook): Update. * solib-som.c (som_solib_create_inferior_hook): Update. * solib-darwin.c (darwin_solib_create_inferior_hook): Update. * solib-svr4.c (enable_break): Update. * breakpoint.h (insert_single_step_breakpoint): Add GDBARCH. * breakpoint.c (insert_single_step_breakpoint): Likewise. Update callers to insert_single_step_breakpoint: * alpha-tdep.c (alpha_software_single_step): Update. * arm-linux-tdep.c (arm_linux_software_single_step): Update. * arm-tdep.c (arm_software_single_step): Update. * cris-tdep.c (cris_software_single_step): Update. * rs6000-aix-tdep.c (rs6000_software_single_step): Update. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Update. * sparc-tdep.c (sparc_software_single_step): Update. * spu-tdep.c (spu_software_single_step): Update. * mips-tdep.c (deal_with_atomic_sequence): Add GDBARCH parameter. Pass it to insert_single_step_breakpoint. (mips_software_single_step): Pass architecture to deal_with_atomic_sequence and insert_single_step_breakpoint. * breakpoint.h (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. * breakpoint.c (deprecated_insert_raw_breakpoint): Add GDBARCH. (deprecated_remove_raw_breakpoint): Likewise. Update callers to deprecated_insert_raw_breakpoint and deprecated_remove_raw_breakpoint: * breakpoint.c (single_step_gdbarch): New static variable. (insert_single_step_breakpoint): Pass GDBARCH parameter to deprecated_insert_raw_breakpoint. Store it in single_step_gdbarch. (remove_single_step_breakpoints): Pass architecture stored in single_step_gdbarch to deprecated_remove_raw_breakpoint. * rs6000-nat.c (exec_one_dummy_insn): Update. * solib-irix.c (enable_break, disable_break): Update. * procfs.c (procfs_mourn_inferior): Update. (remove_dbx_link_breakpoint): Update. * breakpoint.h (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. * breakpoint.c (set_breakpoint): Add GDBARCH parameter. (set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise. Update callers to set_breakpoint, set_momentary_breakpoint and set_momentary_breakpoint_at_pc: * breakpoint.c (set_momentary_breakpoint_at_pc): Update. (until_break_command): Update. * infcall.c (call_function_by_hand): Update. * infcmd.c (finish_backward, finish_forward): Update. * infrun.c (insert_step_resume_breakpoint_at_sal): Add GDBARCH parameter. Pass it to set_momentary_breakpoint. (insert_longjmp_resume_breakpoint): Add GDBARCH parameter. Pass it to set_momentary_breakpoint_at_pc. (handle_inferior_event): Update. (insert_step_resume_breakpoint_at_frame): Update. (insert_step_resume_breakpoint_at_caller): Update.. * mi/mi-cmd-break.c: Include "arch-utils.h". (mi_cmd_break_insert): Update. * target.h (struct target_ops): Add GDBARCH parameter to to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint, and to_remove_hw_breakpoint members. (target_insert_breakpoint, target_remove_breakpoint, target_insert_hw_breakpoint, target_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (memory_remove_breakpoint, memory_insert_breakpoint): Add GDBARCH parameter. * target.c (debug_to_insert_breakpoint, debug_to_remove_breakpoint, debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Add GDBARCH parameter, pass to target routine. (update_current_target): Update function signature. * breakpoint.c (insert_bp_location, remove_breakpoint, deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint): Pass architecture to target_ routines. Update all implementations of the target breakpoint routines to take GDBARCH parameter and use it instead of GDBARCH as appropriate: * corelow.c (ignore): Update. * exec.c (ignore): Update. * mem-break.c (memory_insert_breakpoint): Update. (memory_remove_breakpoint): Update. * monitor.c (monitor_insert_breakpoint): Update. (monitor_remove_breakpoint): Update. * record.c (record_insert_breakpoint): Update. (record_beneath_to_insert_breakpoint): Update. (record_remove_breakpoint): Update. (record_beneath_to_remove_breakpoint): Update. * remote.c (remote_insert_breakpoint): Update. (remote_remove_breakpoint): Update. (remote_insert_hw_breakpoint): Update. (remote_remove_hw_breakpoint): Update. * remote-m32r-sdi.c (m32r_insert_breakpoint): Update. (m32r_remove_breakpoint): Update. * remote-mips.c (mips_insert_breakpoint): Update. (mips_remove_breakpoint): Update. * i386-nat.c (i386_insert_hw_breakpoint): Update. (i386_remove_hw_breakpoint): Update. * nto-procfs.c (procfs_insert_breakpoint): Update. (procfs_remove_breakpoint): Update. (procfs_insert_hw_breakpoint): Update. (procfs_remove_hw_breakpoint): Update. doc/ChangeLog: * gdbint.texi (Examples of Use of @code{ui_out} functions): Update example code extrated from breakpoint.c.
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return gdbarch_memory_remove_breakpoint (gdbarch, bp_tgt);
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}