binutils-gdb/gdb/gdbserver/linux-xtensa-low.c

238 lines
5.9 KiB
C
Raw Normal View History

/* GNU/Linux/Xtensa specific low level interface, for the remote server for GDB.
Copyright (C) 2007-2014 Free Software Foundation, Inc.
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
(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/>. */
#include "server.h"
#include "linux-low.h"
gdb/ChangeLog: * regformats/regdat.sh: Rename init_registers function in generated file to init_registers_${name}. * regformats/reg-crisv32.dat: Set "name" to crisv32. * regformats/reg-ppc64.dat: Set "name" to ppc64. * regformats/reg-s390x.dat: Set "name" to s390x. gdbserver/ChangeLog: * server.h (init_registers): Remove prototype. * linux-low.h (struct linux_target_ops): Add arch_setup field. * linux-low.c (initialize_low): Call the_low_target.arch_setup () instead of init_registers (). * linux-arm-low.c (init_registers_arm): Add prototype. (init_registers_arm_with_iwmmxt): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-cris-low.c (init_registers_cris): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-crisv32-low.c (init_registers_crisv32): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-i386-low.c (init_registers_i386_linux): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-ia64-low.c (init_registers_ia64): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-m32r-low.c (init_registers_m32r): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-m68k-low.c (init_registers_m68k): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-mips-low.c (init_registers_mips_linux): Add prototype. (init_registers_mips64_linux): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-ppc-low.c (init_registers_ppc): Add prototype. (init_registers_powerpc_32, init_registers_powerpc_e500): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-ppc64-low.c (init_registers_ppc64): Add prototype. (init_registers_powerpc_64): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-s390-low.c (init_registers_s390): Add prototype. (init_registers_s390x): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-sh-low.c (init_registers_sh): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-x86-64-low.c (init_registers_x86_64_linux): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-xtensa-low.c (init_registers_xtensa): Add prototype. (the_low_target): Add initializer for arch_setup field. * win32-low.h (struct win32_target_ops): Add arch_setup field. * win32-low.c (initialize_low): Call the_low_target.arch_setup () instead of init_registers (). * win32-arm-low.c (init_registers_arm): Add prototype. (the_low_target): Add initializer for arch_setup field. * win32-i386-low.c (init_registers_i386): Add prototype. (the_low_target): Add initializer for arch_setup field. * spu-low.c (init_registers_spu): Add prototype. (initialize_low): Call initialie_registers_spu () instead of initialize_registers ().
2008-02-27 04:27:40 +01:00
/* Defined in auto-generated file reg-xtensa.c. */
void init_registers_xtensa (void);
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
extern const struct target_desc *tdesc_xtensa;
gdb/ChangeLog: * regformats/regdat.sh: Rename init_registers function in generated file to init_registers_${name}. * regformats/reg-crisv32.dat: Set "name" to crisv32. * regformats/reg-ppc64.dat: Set "name" to ppc64. * regformats/reg-s390x.dat: Set "name" to s390x. gdbserver/ChangeLog: * server.h (init_registers): Remove prototype. * linux-low.h (struct linux_target_ops): Add arch_setup field. * linux-low.c (initialize_low): Call the_low_target.arch_setup () instead of init_registers (). * linux-arm-low.c (init_registers_arm): Add prototype. (init_registers_arm_with_iwmmxt): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-cris-low.c (init_registers_cris): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-crisv32-low.c (init_registers_crisv32): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-i386-low.c (init_registers_i386_linux): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-ia64-low.c (init_registers_ia64): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-m32r-low.c (init_registers_m32r): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-m68k-low.c (init_registers_m68k): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-mips-low.c (init_registers_mips_linux): Add prototype. (init_registers_mips64_linux): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-ppc-low.c (init_registers_ppc): Add prototype. (init_registers_powerpc_32, init_registers_powerpc_e500): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-ppc64-low.c (init_registers_ppc64): Add prototype. (init_registers_powerpc_64): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-s390-low.c (init_registers_s390): Add prototype. (init_registers_s390x): Likewise. (the_low_target): Add initializer for arch_setup field. * linux-sh-low.c (init_registers_sh): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-x86-64-low.c (init_registers_x86_64_linux): Add prototype. (the_low_target): Add initializer for arch_setup field. * linux-xtensa-low.c (init_registers_xtensa): Add prototype. (the_low_target): Add initializer for arch_setup field. * win32-low.h (struct win32_target_ops): Add arch_setup field. * win32-low.c (initialize_low): Call the_low_target.arch_setup () instead of init_registers (). * win32-arm-low.c (init_registers_arm): Add prototype. (the_low_target): Add initializer for arch_setup field. * win32-i386-low.c (init_registers_i386): Add prototype. (the_low_target): Add initializer for arch_setup field. * spu-low.c (init_registers_spu): Add prototype. (initialize_low): Call initialie_registers_spu () instead of initialize_registers ().
2008-02-27 04:27:40 +01:00
#include <asm/ptrace.h>
#include <xtensa-config.h>
#include "xtensa-xtregs.c"
enum regnum {
R_PC=0, R_PS,
R_LBEG, R_LEND, R_LCOUNT,
R_SAR,
R_WS, R_WB,
R_A0 = 64
};
static void
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
xtensa_fill_gregset (struct regcache *regcache, void *buf)
{
elf_greg_t* rset = (elf_greg_t*)buf;
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
const struct target_desc *tdesc = regcache->tdesc;
int ar0_regnum;
char *ptr;
int i;
/* Take care of AR registers. */
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
ar0_regnum = find_regno (tdesc, "ar0");
ptr = (char*)&rset[R_A0];
for (i = ar0_regnum; i < ar0_regnum + XCHAL_NUM_AREGS; i++)
{
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
collect_register (regcache, i, ptr);
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
ptr += register_size (tdesc, i);
}
/* Loop registers, if hardware has it. */
#if XCHAL_HAVE_LOOP
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
collect_register_by_name (regcache, "lbeg", (char*)&rset[R_LBEG]);
collect_register_by_name (regcache, "lend", (char*)&rset[R_LEND]);
collect_register_by_name (regcache, "lcount", (char*)&rset[R_LCOUNT]);
#endif
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
collect_register_by_name (regcache, "sar", (char*)&rset[R_SAR]);
collect_register_by_name (regcache, "pc", (char*)&rset[R_PC]);
collect_register_by_name (regcache, "ps", (char*)&rset[R_PS]);
collect_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]);
collect_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]);
}
static void
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
xtensa_store_gregset (struct regcache *regcache, const void *buf)
{
const elf_greg_t* rset = (const elf_greg_t*)buf;
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
const struct target_desc *tdesc = regcache->tdesc;
int ar0_regnum;
char *ptr;
int i;
/* Take care of AR registers. */
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
ar0_regnum = find_regno (tdesc, "ar0");
ptr = (char *)&rset[R_A0];
for (i = ar0_regnum; i < ar0_regnum + XCHAL_NUM_AREGS; i++)
{
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
supply_register (regcache, i, ptr);
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
ptr += register_size (tdesc, i);
}
/* Loop registers, if hardware has it. */
#if XCHAL_HAVE_LOOP
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
supply_register_by_name (regcache, "lbeg", (char*)&rset[R_LBEG]);
supply_register_by_name (regcache, "lend", (char*)&rset[R_LEND]);
supply_register_by_name (regcache, "lcount", (char*)&rset[R_LCOUNT]);
#endif
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
supply_register_by_name (regcache, "sar", (char*)&rset[R_SAR]);
supply_register_by_name (regcache, "pc", (char*)&rset[R_PC]);
supply_register_by_name (regcache, "ps", (char*)&rset[R_PS]);
supply_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]);
supply_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]);
}
/* Xtensa GNU/Linux PTRACE interface includes extended register set. */
static void
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
xtensa_fill_xtregset (struct regcache *regcache, void *buf)
{
const xtensa_regtable_t *ptr;
for (ptr = xtensa_regmap_table; ptr->name; ptr++)
{
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
collect_register_by_name (regcache, ptr->name,
(char*)buf + ptr->ptrace_offset);
}
}
static void
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
xtensa_store_xtregset (struct regcache *regcache, const void *buf)
{
const xtensa_regtable_t *ptr;
for (ptr = xtensa_regmap_table; ptr->name; ptr++)
{
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
supply_register_by_name (regcache, ptr->name,
(char*)buf + ptr->ptrace_offset);
}
}
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
static struct regset_info xtensa_regsets[] = {
Add x86 AVX support to gdbserver. 2010-04-07 H.J. Lu <hongjiu.lu@intel.com> * Makefile.in (clean): Updated. (i386-avx.o): New. (i386-avx.c): Likewise. (i386-avx-linux.o): Likewise. (i386-avx-linux.c): Likewise. (amd64-avx.o): Likewise. (amd64-avx.c): Likewise. (amd64-avx-linux.o): Likewise. (amd64-avx-linux.c): Likewise. * configure.srv (srv_i386_regobj): Add i386-avx.o. (srv_i386_linux_regobj): Add i386-avx-linux.o. (srv_amd64_regobj): Add amd64-avx.o. (srv_amd64_linux_regobj): Add amd64-avx-linux.o. (srv_i386_32bit_xmlfiles): Add i386/32bit-avx.xml. (srv_i386_64bit_xmlfiles): Add i386/64bit-avx.xml. (srv_i386_xmlfiles): Add i386/i386-avx.xml. (srv_amd64_xmlfiles): Add i386/amd64-avx.xml. (srv_i386_linux_xmlfiles): Add i386/i386-avx-linux.xml. (srv_amd64_linux_xmlfiles): Add i386/amd64-avx-linux.xml. * i387-fp.c: Include "i386-xstate.h". (i387_xsave): New. (i387_cache_to_xsave): Likewise. (i387_xsave_to_cache): Likewise. (x86_xcr0): Likewise. * i387-fp.h (i387_cache_to_xsave): Likewise. (i387_xsave_to_cache): Likewise. (x86_xcr0): Likewise. * linux-arm-low.c (target_regsets): Initialize nt_type to 0. * linux-crisv32-low.c (target_regsets): Likewise. * linux-m68k-low.c (target_regsets): Likewise. * linux-mips-low.c (target_regsets): Likewise. * linux-ppc-low.c (target_regsets): Likewise. * linux-s390-low.c (target_regsets): Likewise. * linux-sh-low.c (target_regsets): Likewise. * linux-sparc-low.c (target_regsets): Likewise. * linux-xtensa-low.c (target_regsets): Likewise. * linux-low.c: Include <sys/uio.h>. (regsets_fetch_inferior_registers): Support nt_type. (regsets_store_inferior_registers): Likewise. (linux_process_qsupported): New. (linux_target_ops): Add linux_process_qsupported. * linux-low.h (regset_info): Add nt_type. (linux_target_ops): Add process_qsupported. * linux-x86-low.c: Include "i386-xstate.h", "elf/common.h" and <sys/uio.h>. (init_registers_i386_avx_linux): New. (init_registers_amd64_avx_linux): Likewise. (xmltarget_i386_linux_no_xml): Likewise. (xmltarget_amd64_linux_no_xml): Likewise. (PTRACE_GETREGSET): Likewise. (PTRACE_SETREGSET): Likewise. (x86_fill_xstateregset): Likewise. (x86_store_xstateregset): Likewise. (use_xml): Likewise. (x86_linux_update_xmltarget): Likewise. (x86_linux_process_qsupported): Likewise. (target_regsets): Add NT_X86_XSTATE entry and Initialize nt_type. (x86_arch_setup): Don't call init_registers_amd64_linux nor init_registers_i386_linux here. Call x86_linux_update_xmltarget. (the_low_target): Add x86_linux_process_qsupported. * server.c (handle_query): Call target_process_qsupported. * target.h (target_ops): Add process_qsupported. (target_process_qsupported): New.
2010-04-07 20:49:46 +02:00
{ PTRACE_GETREGS, PTRACE_SETREGS, 0, sizeof (elf_gregset_t),
GENERAL_REGS,
xtensa_fill_gregset, xtensa_store_gregset },
Add x86 AVX support to gdbserver. 2010-04-07 H.J. Lu <hongjiu.lu@intel.com> * Makefile.in (clean): Updated. (i386-avx.o): New. (i386-avx.c): Likewise. (i386-avx-linux.o): Likewise. (i386-avx-linux.c): Likewise. (amd64-avx.o): Likewise. (amd64-avx.c): Likewise. (amd64-avx-linux.o): Likewise. (amd64-avx-linux.c): Likewise. * configure.srv (srv_i386_regobj): Add i386-avx.o. (srv_i386_linux_regobj): Add i386-avx-linux.o. (srv_amd64_regobj): Add amd64-avx.o. (srv_amd64_linux_regobj): Add amd64-avx-linux.o. (srv_i386_32bit_xmlfiles): Add i386/32bit-avx.xml. (srv_i386_64bit_xmlfiles): Add i386/64bit-avx.xml. (srv_i386_xmlfiles): Add i386/i386-avx.xml. (srv_amd64_xmlfiles): Add i386/amd64-avx.xml. (srv_i386_linux_xmlfiles): Add i386/i386-avx-linux.xml. (srv_amd64_linux_xmlfiles): Add i386/amd64-avx-linux.xml. * i387-fp.c: Include "i386-xstate.h". (i387_xsave): New. (i387_cache_to_xsave): Likewise. (i387_xsave_to_cache): Likewise. (x86_xcr0): Likewise. * i387-fp.h (i387_cache_to_xsave): Likewise. (i387_xsave_to_cache): Likewise. (x86_xcr0): Likewise. * linux-arm-low.c (target_regsets): Initialize nt_type to 0. * linux-crisv32-low.c (target_regsets): Likewise. * linux-m68k-low.c (target_regsets): Likewise. * linux-mips-low.c (target_regsets): Likewise. * linux-ppc-low.c (target_regsets): Likewise. * linux-s390-low.c (target_regsets): Likewise. * linux-sh-low.c (target_regsets): Likewise. * linux-sparc-low.c (target_regsets): Likewise. * linux-xtensa-low.c (target_regsets): Likewise. * linux-low.c: Include <sys/uio.h>. (regsets_fetch_inferior_registers): Support nt_type. (regsets_store_inferior_registers): Likewise. (linux_process_qsupported): New. (linux_target_ops): Add linux_process_qsupported. * linux-low.h (regset_info): Add nt_type. (linux_target_ops): Add process_qsupported. * linux-x86-low.c: Include "i386-xstate.h", "elf/common.h" and <sys/uio.h>. (init_registers_i386_avx_linux): New. (init_registers_amd64_avx_linux): Likewise. (xmltarget_i386_linux_no_xml): Likewise. (xmltarget_amd64_linux_no_xml): Likewise. (PTRACE_GETREGSET): Likewise. (PTRACE_SETREGSET): Likewise. (x86_fill_xstateregset): Likewise. (x86_store_xstateregset): Likewise. (use_xml): Likewise. (x86_linux_update_xmltarget): Likewise. (x86_linux_process_qsupported): Likewise. (target_regsets): Add NT_X86_XSTATE entry and Initialize nt_type. (x86_arch_setup): Don't call init_registers_amd64_linux nor init_registers_i386_linux here. Call x86_linux_update_xmltarget. (the_low_target): Add x86_linux_process_qsupported. * server.c (handle_query): Call target_process_qsupported. * target.h (target_ops): Add process_qsupported. (target_process_qsupported): New.
2010-04-07 20:49:46 +02:00
{ PTRACE_GETXTREGS, PTRACE_SETXTREGS, 0, XTENSA_ELF_XTREG_SIZE,
EXTENDED_REGS,
xtensa_fill_xtregset, xtensa_store_xtregset },
Add x86 AVX support to gdbserver. 2010-04-07 H.J. Lu <hongjiu.lu@intel.com> * Makefile.in (clean): Updated. (i386-avx.o): New. (i386-avx.c): Likewise. (i386-avx-linux.o): Likewise. (i386-avx-linux.c): Likewise. (amd64-avx.o): Likewise. (amd64-avx.c): Likewise. (amd64-avx-linux.o): Likewise. (amd64-avx-linux.c): Likewise. * configure.srv (srv_i386_regobj): Add i386-avx.o. (srv_i386_linux_regobj): Add i386-avx-linux.o. (srv_amd64_regobj): Add amd64-avx.o. (srv_amd64_linux_regobj): Add amd64-avx-linux.o. (srv_i386_32bit_xmlfiles): Add i386/32bit-avx.xml. (srv_i386_64bit_xmlfiles): Add i386/64bit-avx.xml. (srv_i386_xmlfiles): Add i386/i386-avx.xml. (srv_amd64_xmlfiles): Add i386/amd64-avx.xml. (srv_i386_linux_xmlfiles): Add i386/i386-avx-linux.xml. (srv_amd64_linux_xmlfiles): Add i386/amd64-avx-linux.xml. * i387-fp.c: Include "i386-xstate.h". (i387_xsave): New. (i387_cache_to_xsave): Likewise. (i387_xsave_to_cache): Likewise. (x86_xcr0): Likewise. * i387-fp.h (i387_cache_to_xsave): Likewise. (i387_xsave_to_cache): Likewise. (x86_xcr0): Likewise. * linux-arm-low.c (target_regsets): Initialize nt_type to 0. * linux-crisv32-low.c (target_regsets): Likewise. * linux-m68k-low.c (target_regsets): Likewise. * linux-mips-low.c (target_regsets): Likewise. * linux-ppc-low.c (target_regsets): Likewise. * linux-s390-low.c (target_regsets): Likewise. * linux-sh-low.c (target_regsets): Likewise. * linux-sparc-low.c (target_regsets): Likewise. * linux-xtensa-low.c (target_regsets): Likewise. * linux-low.c: Include <sys/uio.h>. (regsets_fetch_inferior_registers): Support nt_type. (regsets_store_inferior_registers): Likewise. (linux_process_qsupported): New. (linux_target_ops): Add linux_process_qsupported. * linux-low.h (regset_info): Add nt_type. (linux_target_ops): Add process_qsupported. * linux-x86-low.c: Include "i386-xstate.h", "elf/common.h" and <sys/uio.h>. (init_registers_i386_avx_linux): New. (init_registers_amd64_avx_linux): Likewise. (xmltarget_i386_linux_no_xml): Likewise. (xmltarget_amd64_linux_no_xml): Likewise. (PTRACE_GETREGSET): Likewise. (PTRACE_SETREGSET): Likewise. (x86_fill_xstateregset): Likewise. (x86_store_xstateregset): Likewise. (use_xml): Likewise. (x86_linux_update_xmltarget): Likewise. (x86_linux_process_qsupported): Likewise. (target_regsets): Add NT_X86_XSTATE entry and Initialize nt_type. (x86_arch_setup): Don't call init_registers_amd64_linux nor init_registers_i386_linux here. Call x86_linux_update_xmltarget. (the_low_target): Add x86_linux_process_qsupported. * server.c (handle_query): Call target_process_qsupported. * target.h (target_ops): Add process_qsupported. (target_process_qsupported): New.
2010-04-07 20:49:46 +02:00
{ 0, 0, 0, -1, -1, NULL, NULL }
};
#if XCHAL_HAVE_BE
#define XTENSA_BREAKPOINT {0xd2,0x0f}
#else
#define XTENSA_BREAKPOINT {0x2d,0xf0}
#endif
static const unsigned char xtensa_breakpoint[] = XTENSA_BREAKPOINT;
#define xtensa_breakpoint_len 2
static CORE_ADDR
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
xtensa_get_pc (struct regcache *regcache)
{
unsigned long pc;
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
collect_register_by_name (regcache, "pc", &pc);
return pc;
}
static void
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
xtensa_set_pc (struct regcache *regcache, CORE_ADDR pc)
{
unsigned long newpc = pc;
* regcache.h (struct thread_info): Forward declare. (struct regcache): New. (new_register_cache): Adjust prototype. (get_thread_regcache): Declare. (free_register_cache): Adjust prototype. (registers_to_string, registers_from_string): Ditto. (supply_register, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Ditto. * regcache.c (struct inferior_regcache_data): Delete. (get_regcache): Rename to ... (get_thread_regcache): ... this. Adjust. Switch inferior before fetching registers. (regcache_invalidate_one): Adjust. (regcache_invalidate): Fix prototype. (new_register_cache): Return the new register cache. (free_register_cache): Change prototype. (realloc_register_cache): Adjust. (registers_to_string): Change prototype to take a regcache. Adjust. (registers_from_string): Ditto. (register_data): Ditto. (supply_register): Ditto. (supply_register_by_name): Ditto. (collect_register): Ditto. (collect_register_as_string): Ditto. (collect_register_by_name): Ditto. * server.c (process_serial_event): Adjust. * linux-low.h (regset_fill_func, regset_store_func): Change prototype. (get_pc, set_pc, collect_ptrace_register, supply_ptrace_register): Change prototype. * linux-low.c (get_stop_pc): Adjust. (check_removed_breakpoint): Adjust. (linux_wait_for_event): Adjust. (linux_resume_one_lwp): Adjust. (fetch_register): Add regcache parameter. Adjust. (usr_store_inferior_registers): Ditto. (regsets_fetch_inferior_registers): Ditto. (regsets_store_inferior_registers): Ditto. (linux_fetch_registers, linux_store_registers): Ditto. * i387-fp.c (i387_cache_to_fsave): Change prototype to take a regcache. Adjust. (i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change prototype to take a regcache. (i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto. * remote-utils.c (convert_ascii_to_int, outreg) (prepare_resume_reply): Change prototype to take a regcache. Adjust. * target.h (struct target_ops) <fetch_registers, store_registers>: Change prototype to take a regcache. (fetch_inferior_registers, store_inferior_registers): Change prototype to take a regcache. Adjust. * proc-service.c (ps_lgetregs): Adjust. * linux-x86-low.c (x86_fill_gregset, x86_store_gregset) (x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset) (x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to take a regcache. Adjust. * linux-arm-low.c (arm_fill_gregset, arm_store_gregset) (arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset) (arm_store_vfpregset, arm_get_pc, arm_set_pc): (arm_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-cris-low.c (cris_get_pc, cris_set_pc) (cris_cannot_fetch_register): (cris_breakpoint_at): Change prototype to take a regcache. Adjust. * linux-crisv32-low.c (cris_get_pc, cris_set_pc, cris_reinsert_addr, cris_write_data_breakpoint): Change prototype to take a regcache. Adjust. (cris_breakpoint_at, cris_insert_point, cris_remove_point): Adjust. * linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to take a regcache. Adjust. * linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset) (m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc, (m68k_set_pc): Change prototype to take a regcache. Adjust. * linux-mips-low.c (mips_get_pc): (mips_set_pc): Change prototype to take a regcache. Adjust. (mips_reinsert_addr): Adjust. (mips_collect_register): Change prototype to take a regcache. Adjust. (mips_supply_register): (mips_collect_register_32bit, mips_supply_register_32bit) (mips_fill_gregset, mips_store_gregset, mips_fill_fpregset) (mips_store_fpregset): Ditto. * linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register): Ditto. (parse_spufs_run): Adjust. (ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset) (ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset) (ppc_fill_evrregset, ppc_store_evrregset): Change prototype to take a regcache. Adjust. * linux-s390-low.c (s390_collect_ptrace_register) (s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc) (s390_set_pc): Change prototype to take a regcache. Adjust. (s390_arch_setup): Adjust. * linux-sh-low.c (sh_get_pc, sh_breakpoint_at) (sh_fill_gregset): Change prototype to take a regcache. Adjust. * linux-sparc-low.c (sparc_fill_gregset_to_stack) (sparc_fill_gregset, sparc_store_gregset_from_stack) (sparc_store_gregset, sparc_get_pc): Change prototype to take a regcache. Adjust. (sparc_breakpoint_at): Adjust. * linux-xtensa-low.c (xtensa_fill_gregset): (xtensa_store_gregset): (xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc) (xtensa_set_pc): Change prototype to take a regcache. Adjust. * nto-low.c (nto_fetch_registers, nto_store_registers): Change prototype to take a regcache. Adjust. * win32-arm-low.c (arm_fetch_inferior_register) (arm_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-i386-low.c (i386_fetch_inferior_register) (i386_store_inferior_register): Change prototype to take a regcache. Adjust. * win32-low.c (child_fetch_inferior_registers) (child_store_inferior_registers): Change prototype to take a regcache. Adjust. (win32_wait): Adjust. (win32_fetch_inferior_registers): Change prototype to take a regcache. Adjust. (win32_store_inferior_registers): Adjust. * win32-low.h (struct win32_target_ops) <fetch_inferior_register, store_inferior_register>: Change prototype to take a regcache.
2010-01-20 23:55:38 +01:00
supply_register_by_name (regcache, "pc", &newpc);
}
static int
xtensa_breakpoint_at (CORE_ADDR where)
{
unsigned long insn;
(*the_target->read_memory) (where, (unsigned char *) &insn,
xtensa_breakpoint_len);
return memcmp((char *) &insn,
xtensa_breakpoint, xtensa_breakpoint_len) == 0;
}
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
static struct regsets_info xtensa_regsets_info =
{
xtensa_regsets, /* regsets */
0, /* num_regsets */
NULL, /* disabled_regsets */
};
static struct usrregs_info xtensa_usrregs_info =
{
xtensa_num_regs,
xtensa_regmap,
};
static struct regs_info regs_info =
{
NULL, /* regset_bitmap */
&xtensa_usrregs_info,
&xtensa_regsets_info
};
static void
xtensa_arch_setup (void)
{
current_process ()->tdesc = tdesc_xtensa;
}
static const struct regs_info *
xtensa_regs_info (void)
{
return &regs_info;
}
struct linux_target_ops the_low_target = {
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
xtensa_arch_setup,
xtensa_regs_info,
0,
0,
NULL, /* fetch_register */
xtensa_get_pc,
xtensa_set_pc,
xtensa_breakpoint,
xtensa_breakpoint_len,
NULL,
0,
xtensa_breakpoint_at,
};
[GDBserver] Multi-process + multi-arch This patch makes GDBserver support multi-process + biarch. Currently, if you're debugging more than one process at once with a single gdbserver (in extended-remote mode), then all processes must have the same architecture (e.g., 64-bit vs 32-bit). Otherwise, you see this: Added inferior 2 [Switching to inferior 2 [<null>] (<noexec>)] Reading symbols from /home/pedro/gdb/tests/main32...done. Temporary breakpoint 2 at 0x4004cf: main. (2 locations) Starting program: /home/pedro/gdb/tests/main32 warning: Selected architecture i386 is not compatible with reported target architecture i386:x86-64 warning: Architecture rejected target-supplied description Remote 'g' packet reply is too long: 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000090cfffff0000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000b042f7460000000000020000230000002b0000002b0000002b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f03000000000000ffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f00003b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 ... etc, etc ... Even though the process was running a 32-bit program, GDBserver sent back to GDB a register set in 64-bit layout. A patch (http://sourceware.org/ml/gdb-patches/2012-11/msg00228.html) a while ago made GDB track a target_gdbarch per inferior, and as consequence, fetch a target description per-inferior. This patch is the GDBserver counterpart, that makes GDBserver keep track of each process'es XML target description and register layout. So in the example above, GDBserver will send the correct register set in 32-bit layout to GDB. A new "struct target_desc" object (tdesc for short) is added, that holds the target description and register layout information about each process. Each `struct process_info' holds a pointer to a target description. The regcache also gains a pointer to a target description, mainly for convenience, and parallel with GDB (and possible future support for programs that flip processor modes). The low target's arch_setup routines are responsible for setting the process'es correct tdesc. This isn't that much different to how things were done before, except that instead of detecting the inferior process'es architecture and calling the corresponding init_registers_FOO routine, which would change the regcache layout globals and recreate the threads' regcaches, the regcache.c globals are gone, and the init_registers_$BAR routines now each initialize a separate global struct target_desc object (one for each arch variant GDBserver supports), and so all the init_registers_$BAR routines that are built into GDBserver are called early at GDBserver startup time (similarly to how GDB handles its built-in target descriptions), and then the arch_setup routine is responsible for making process_info->tdesc point to one of these target description globals. The regcache module is all parameterized to get the regcache's layout from the tdesc object instead of the old register_bytes, etc. globals. The threads' regcaches are now created lazily. The old scheme where we created each of them when we added a new thread doesn't work anymore, because we add the main thread/lwp before we see it stop for the first time, and it is only when we see the thread stop for the first time that we have a chance of determining the inferior's architecture (through the_low_target.arch_setup). Therefore when we add the main thread we don't know which architecture/tdesc its regcache should have. This patch makes the gdb.multi/multi-arch.exp test now pass against (extended-remote) GDBserver. It currently fails, without this patch. The IPA also uses the regcache, so it gains a new global struct target_desc pointer, which points at the description of the process it is loaded in. Re. the linux-low.c & friends changes. Since the register map etc. may differ between processes (64-bit vs 32-bit) etc., the linux_target_ops num_regs, regmap and regset_bitmap data fields are no longer sufficient. A new method is added in their place that returns a pointer to a new struct that includes all info linux-low.c needs to access registers of the current inferior. The patch/discussion that originally introduced linux-low.c:disabled_regsets mentions that the disabled_regsets set may be different per mode (in a biarch setup), and indeed that is cleared whenever we start a new (first) inferior, so that global is moved as well behind the new `struct regs_info'. On the x86 side: I simply replaced the i387-fp.c:num_xmm_registers global with a check for 64-bit or 32-bit process, which is equivalent to how the global was set. This avoided coming up with some more general mechanism that would work for all targets that use this module (GNU/Linux, Windows, etc.). Tested: GNU/Linux IA64 GNU/Linux MIPS64 GNU/Linux PowerPC (Fedora 16) GNU/Linux s390x (Fedora 16) GNU/Linux sparc64 (Debian) GNU/Linux x86_64, -m64 and -m32 (Fedora 17) Cross built, and smoke tested: i686-w64-mingw32, under Wine. GNU/Linux TI C6x, by Yao Qi. Cross built but otherwise not tested: aarch64-linux-gnu arm-linux-gnu m68k-linux nios2-linux-gnu sh-linux-gnu spu tilegx-unknown-linux-gnu Completely untested: GNU/Linux Blackfin GNU/Linux CRIS GNU/Linux CRISv32 GNU/Linux TI Xtensa GNU/Linux M32R LynxOS QNX NTO gdb/gdbserver/ 2013-06-07 Pedro Alves <palves@redhat.com> * Makefile.in (OBS): Add tdesc.o. (IPA_OBJS): Add tdesc-ipa.o. (tdesc-ipa.o): New rule. * ax.c (gdb_eval_agent_expr): Adjust register_size call to new interface. * linux-low.c (new_inferior): Delete. (disabled_regsets, num_regsets): Delete. (linux_add_process): Adjust to set the new per-process new_inferior flag. (linux_detach_one_lwp): Adjust to call regcache_invalidate_thread. (linux_wait_for_lwp): Adjust. Only call arch_setup if the event was a stop. When calling arch_setup, switch the current inferior to the thread that got an event. (linux_resume_one_lwp): Adjust to call regcache_invalidate_thread. (regsets_fetch_inferior_registers) (regsets_store_inferior_registers): New regsets_info parameter. Adjust to use it. (linux_register_in_regsets): New regs_info parameter. Adjust to use it. (register_addr, fetch_register, store_register): New usrregs_info parameter. Adjust to use it. (usr_fetch_inferior_registers, usr_store_inferior_registers): New parameter regs_info. Adjust to use it. (linux_fetch_registers): Get the current inferior's regs_info, and adjust to use it. (linux_store_registers): Ditto. [HAVE_LINUX_REGSETS] (initialize_regsets_info): New. (initialize_low): Don't initialize the target_regsets here. Call initialize_low_arch. * linux-low.h (target_regsets): Delete declaration. (struct regsets_info): New. (struct usrregs_info): New. (struct regs_info): New. (struct process_info_private) <new_inferior>: New field. (struct linux_target_ops): Delete the num_regs, regmap, and regset_bitmap fields. New field regs_info. [HAVE_LINUX_REGSETS] (initialize_regsets_info): Declare. * i387-fp.c (num_xmm_registers): Delete. (i387_cache_to_fsave, i387_fsave_to_cache): Adjust find_regno calls to new interface. (i387_cache_to_fxsave, i387_cache_to_xsave, i387_fxsave_to_cache) (i387_xsave_to_cache): Adjust find_regno calls to new interface. Infer the number of xmm registers from the regcache's target description. * i387-fp.h (num_xmm_registers): Delete. * inferiors.c (add_thread): Don't install the thread's regcache here. * proc-service.c (gregset_info): Fetch the current inferior's regs_info. Adjust to use it. * regcache.c: Include tdesc.h. (register_bytes, reg_defs, num_registers) (gdbserver_expedite_regs): Delete. (get_thread_regcache): If the thread doesn't have a regcache yet, create one, instead of aborting gdbserver. (regcache_invalidate_one): Rename to ... (regcache_invalidate_thread): ... this. (regcache_invalidate_one): New. (regcache_invalidate): Only invalidate registers of the current process. (init_register_cache): Add target_desc parameter, and use it. (new_register_cache): Ditto. Assert the target description has a non zero registers_size. (regcache_cpy): Add assertions. Adjust. (realloc_register_cache, set_register_cache): Delete. (registers_to_string, registers_from_string): Adjust. (find_register_by_name, find_regno, find_register_by_number) (register_cache_size): Add target_desc parameter, and use it. (free_register_cache_thread, free_register_cache_thread_one) (regcache_release, register_cache_size): New. (register_size): Add target_desc parameter, and use it. (register_data, supply_register, supply_register_zeroed) (supply_regblock, supply_register_by_name, collect_register) (collect_register_as_string, collect_register_by_name): Adjust. * regcache.h (struct target_desc): Forward declare. (struct regcache) <tdesc>: New field. (init_register_cache, new_register_cache): Add target_desc parameter. (regcache_invalidate_thread): Declare. (regcache_invalidate_one): Delete declaration. (regcache_release): Declare. (find_register_by_number, register_cache_size, register_size) (find_regno): Add target_desc parameter. (gdbserver_expedite_regs, gdbserver_xmltarget): Delete declarations. * remote-utils.c: Include tdesc.h. (outreg, prepare_resume_reply): Adjust. * server.c: Include tdesc.h. (gdbserver_xmltarget): Delete declaration. (get_features_xml, process_serial_event): Adjust. * server.h [IN_PROCESS_AGENT] (struct target_desc): Forward declare. (struct process_info) <tdesc>: New field. (ipa_tdesc): Declare. * tdesc.c: New file. * tdesc.h: New file. * tracepoint.c: Include tdesc.h. [IN_PROCESS_AGENT] (ipa_tdesc): Define. (get_context_regcache): Adjust to pass ipa_tdesc down. (do_action_at_tracepoint): Adjust to get the register cache size from the context regcache's description. (traceframe_walk_blocks): Adjust to get the register cache size from the current trace frame's description. (traceframe_get_pc): Adjust to get current trace frame's description and pass it down. (gdb_collect): Adjust to get the register cache size from the IPA's description. * linux-amd64-ipa.c (tdesc_amd64_linux): Declare. (gdbserver_xmltarget): Delete. (initialize_low_tracepoint): Set the ipa's target description. * linux-i386-ipa.c (tdesc_i386_linux): Declare. (initialize_low_tracepoint): Set the ipa's target description. * linux-x86-low.c: Include tdesc.h. [__x86_64__] (is_64bit_tdesc): New. (ps_get_thread_area, x86_get_thread_area): Use it. (i386_cannot_store_register): Rename to ... (x86_cannot_store_register): ... this. Use is_64bit_tdesc. (i386_cannot_fetch_register): Rename to ... (x86_cannot_fetch_register): ... this. Use is_64bit_tdesc. (x86_fill_gregset, x86_store_gregset): Adjust register_size calls to new interface. (target_regsets): Rename to ... (x86_regsets): ... this. (x86_get_pc, x86_set_pc): Adjust register_size calls to new interface. (x86_siginfo_fixup): Use is_64bit_tdesc. [__x86_64__] (tdesc_amd64_linux, tdesc_amd64_avx_linux) (tdesc_x32_avx_linux, tdesc_x32_linux) (tdesc_i386_linux, tdesc_i386_mmx_linux, tdesc_i386_avx_linux): Declare. (x86_linux_update_xmltarget): Delete. (I386_LINUX_XSAVE_XCR0_OFFSET): Define. (have_ptrace_getfpxregs, have_ptrace_getregset): New. (AMD64_LINUX_USER64_CS): New. (x86_linux_read_description): New, based on x86_linux_update_xmltarget. (same_process_callback): New. (x86_arch_setup_process_callback): New. (x86_linux_update_xmltarget): New. (x86_regsets_info): New. (amd64_linux_regs_info): New. (i386_linux_usrregs_info): New. (i386_linux_regs_info): New. (x86_linux_regs_info): New. (x86_arch_setup): Reimplement. (x86_install_fast_tracepoint_jump_pad): Use is_64bit_tdesc. (x86_emit_ops): Ditto. (the_low_target): Adjust. Install x86_linux_regs_info, x86_cannot_fetch_register, and x86_cannot_store_register. (initialize_low_arch): New. * linux-ia64-low.c (tdesc_ia64): Declare. (ia64_fetch_register): Adjust. (ia64_usrregs_info, regs_info): New globals. (ia64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sparc-low.c (tdesc_sparc64): Declare. (sparc_fill_gregset_to_stack, sparc_store_gregset_from_stack): Adjust. (sparc_arch_setup): New function. (sparc_regsets_info, sparc_usrregs_info, regs_info): New globals. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-ppc-low.c (tdesc_powerpc_32l, tdesc_powerpc_altivec32l) (tdesc_powerpc_cell32l, tdesc_powerpc_vsx32l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_altivec32l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_e500l) (tdesc_powerpc_64l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell64l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_64l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx64l): Declare. (ppc_cannot_store_register, ppc_collect_ptrace_register) (ppc_supply_ptrace_register, parse_spufs_run, ppc_get_pc) (ppc_set_pc, ppc_get_hwcap): Adjust. (ppc_usrregs_info): Forward declare. (!__powerpc64__) ppc_regmap_adjusted: New global. (ppc_arch_setup): Adjust to the current process'es target description. (ppc_fill_vsxregset, ppc_store_vsxregset, ppc_fill_vrregset) (ppc_store_vrregset, ppc_fill_evrregset, ppc_store_evrregse) (ppc_store_evrregset): Adjust. (target_regsets): Rename to ... (ppc_regsets): ... this, and make static. (ppc_usrregs_info, ppc_regsets_info, regs_info): New globals. (ppc_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-s390-low.c (tdesc_s390_linux32, tdesc_s390_linux32v1) (tdesc_s390_linux32v2, tdesc_s390_linux64, tdesc_s390_linux64v1) (tdesc_s390_linux64v2, tdesc_s390x_linux64, tdesc_s390x_linux64v1) (tdesc_s390x_linux64v2): Declare. (s390_collect_ptrace_register, s390_supply_ptrace_register) (s390_fill_gregset, s390_store_last_break): Adjust. (target_regsets): Rename to ... (s390_regsets): ... this, and make static. (s390_get_pc, s390_set_pc): Adjust. (s390_get_hwcap): New target_desc parameter, and use it. [__s390x__] (have_hwcap_s390_high_gprs): New global. (s390_arch_setup): Adjust to set the current process'es target description. Don't adjust the regmap. (s390_usrregs_info, s390_regsets_info, regs_info): New globals. [__s390x__] (s390_usrregs_info_3264, s390_regsets_info_3264) (regs_info_3264): New globals. (s390_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-mips-low.c (tdesc_mips_linux, tdesc_mips_dsp_linux) (tdesc_mips64_linux, tdesc_mips64_dsp_linux): Declare. [__mips64] (init_registers_mips_linux) (init_registers_mips_dsp_linux): Delete defines. [__mips64] (tdesc_mips_linux, tdesc_mips_dsp_linux): New defines. (have_dsp): New global. (mips_read_description): New, based on mips_arch_setup. (mips_arch_setup): Reimplement. (get_usrregs_info): New function. (mips_cannot_fetch_register, mips_cannot_store_register) (mips_get_pc, mips_set_pc, mips_fill_gregset, mips_store_gregset) (mips_fill_fpregset, mips_store_fpregset): Adjust. (target_regsets): Rename to ... (mips_regsets): ... this, and make static. (mips_regsets_info, mips_dsp_usrregs_info, mips_usrregs_info) (dsp_regs_info, regs_info): New globals. (mips_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-arm-low.c (tdesc_arm, tdesc_arm_with_iwmmxt) (tdesc_arm_with_vfpv2, tdesc_arm_with_vfpv3, tdesc_arm_with_neon): Declare. (arm_fill_vfpregset, arm_store_vfpregset): Adjust. (arm_read_description): New, with bits factored from arm_arch_setup. (arm_arch_setup): Reimplement. (target_regsets): Rename to ... (arm_regsets): ... this, and make static. (arm_regsets_info, arm_usrregs_info, regs_info): New globals. (arm_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m68k-low.c (tdesc_m68k): Declare. (target_regsets): Rename to ... (m68k_regsets): ... this, and make static. (m68k_regsets_info, m68k_usrregs_info, regs_info): New globals. (m68k_regs_info): New function. (m68k_arch_setup): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-sh-low.c (tdesc_sharch): Declare. (target_regsets): Rename to ... (sh_regsets): ... this, and make static. (sh_regsets_info, sh_usrregs_info, regs_info): New globals. (sh_regs_info, sh_arch_setup): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-bfin-low.c (tdesc_bfin): Declare. (bfin_arch_setup): New function. (bfin_usrregs_info, regs_info): New globals. (bfin_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_cris): Declare. (cris_arch_setup): New function. (cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-cris-low.c (tdesc_crisv32): Declare. (cris_arch_setup): New function. (cris_regsets_info, cris_usrregs_info, regs_info): New globals. (cris_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-m32r-low.c (tdesc_m32r): Declare. (m32r_arch_setup): New function. (m32r_usrregs_info, regs_info): New globals. (m32r_regs_info): Adjust. (initialize_low_arch): New function. * linux-tic6x-low.c (tdesc_tic6x_c64xp_linux) (tdesc_tic6x_c64x_linux, tdesc_tic6x_c62x_linux): Declare. (tic6x_usrregs_info): Forward declare. (tic6x_read_description): New function, based on ... (tic6x_arch_setup): ... this. Reimplement. (target_regsets): Rename to ... (tic6x_regsets): ... this, and make static. (tic6x_regsets_info, tic6x_usrregs_info, regs_info): New globals. (tic6x_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-xtensa-low.c (tdesc_xtensa): Declare. (xtensa_fill_gregset, xtensa_store_gregset): Adjust. (target_regsets): Rename to ... (xtensa_regsets): ... this, and make static. (xtensa_regsets_info, xtensa_usrregs_info, regs_info): New globals. (xtensa_arch_setup, xtensa_regs_info): New functions. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-nios2-low.c (tdesc_nios2_linux): Declare. (nios2_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (nios2_regsets): ... this. (nios2_regsets_info, nios2_usrregs_info, regs_info): New globals. (nios2_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-aarch64-low.c (tdesc_aarch64): Declare. (aarch64_arch_setup): Set the current process'es tdesc. (target_regsets): Rename to ... (aarch64_regsets): ... this. (aarch64_regsets_info, aarch64_usrregs_info, regs_info): New globals. (aarch64_regs_info): New function. (the_low_target): Adjust. (initialize_low_arch): New function. * linux-tile-low.c (tdesc_tilegx, tdesc_tilegx32): Declare globals. (target_regsets): Rename to ... (tile_regsets): ... this. (tile_regsets_info, tile_usrregs_info, regs_info): New globals. (tile_regs_info): New function. (tile_arch_setup): Set the current process'es tdesc. (the_low_target): Adjust. (initialize_low_arch): New function. * spu-low.c (tdesc_spu): Declare. (spu_create_inferior, spu_attach): Set the new process'es tdesc. * win32-arm-low.c (tdesc_arm): Declare. (arm_arch_setup): New function. (the_low_target): Install arm_arch_setup instead of init_registers_arm. * win32-i386-low.c (tdesc_i386, tdesc_amd64): Declare. (init_windows_x86): Rename to ... (i386_arch_setup): ... this. Set `win32_tdesc'. (the_low_target): Adjust. * win32-low.c (win32_tdesc): New global. (child_add_thread): Don't create the thread cache here. (do_initial_child_stuff): Set the new process'es tdesc. * win32-low.h (struct target_desc): Forward declare. (win32_tdesc): Declare. * lynx-i386-low.c (tdesc_i386): Declare global. (lynx_i386_arch_setup): Set `lynx_tdesc'. * lynx-low.c (lynx_tdesc): New global. (lynx_add_process): Set the new process'es tdesc. * lynx-low.h (struct target_desc): Forward declare. (lynx_tdesc): Declare global. * lynx-ppc-low.c (tdesc_powerpc_32): Declare global. (lynx_ppc_arch_setup): Set `lynx_tdesc'. * nto-low.c (nto_tdesc): New global. (do_attach): Set the new process'es tdesc. * nto-low.h (struct target_desc): Forward declare. (nto_tdesc): Declare. * nto-x86-low.c (tdesc_i386): Declare. (nto_x86_arch_setup): Set `nto_tdesc'. gdb/ 2013-06-07 Pedro Alves <palves@redhat.com> * regformats/regdat.sh: Output #include tdesc.h. Make globals static. Output a global target description pointer. (init_registers_${name}): Adjust to initialize a target description structure.
2013-06-07 12:46:59 +02:00
void
initialize_low_arch (void)
{
/* Initialize the Linux target descriptions. */
init_registers_xtensa ();
initialize_regsets_info (&xtensa_regsets_info);
}