2002-02-25 06:31:19 +08:00
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/* Target-dependent code for GNU/Linux running on i386's, for GDB.
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Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
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* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdbcore.h"
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#include "frame.h"
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#include "value.h"
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2001-03-01 09:39:22 +08:00
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#include "regcache.h"
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2001-11-04 22:06:16 +08:00
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#include "inferior.h"
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* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
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2000-08-30 07:31:10 +08:00
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/* For i386_linux_skip_solib_resolver. */
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#include "symtab.h"
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#include "symfile.h"
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#include "objfiles.h"
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2001-03-13 20:42:08 +08:00
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#include "solib-svr4.h" /* For struct link_map_offsets. */
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2000-08-30 07:31:10 +08:00
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* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
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#include "i386-tdep.h"
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#include "i386-linux-tdep.h"
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2001-11-04 22:06:16 +08:00
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/* Return the name of register REG. */
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2002-06-19 22:59:47 +08:00
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static const char *
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2001-11-04 22:06:16 +08:00
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i386_linux_register_name (int reg)
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{
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/* Deal with the extra "orig_eax" pseudo register. */
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if (reg == I386_LINUX_ORIG_EAX_REGNUM)
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return "orig_eax";
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return i386_register_name (reg);
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}
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* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
|
|
|
|
static int
|
2001-11-04 22:06:16 +08:00
|
|
|
|
i386_linux_register_byte (int reg)
|
|
|
|
|
{
|
|
|
|
|
/* Deal with the extra "orig_eax" pseudo register. */
|
|
|
|
|
if (reg == I386_LINUX_ORIG_EAX_REGNUM)
|
|
|
|
|
return (i386_register_byte (I386_LINUX_ORIG_EAX_REGNUM - 1)
|
|
|
|
|
+ i386_register_raw_size (I386_LINUX_ORIG_EAX_REGNUM - 1));
|
|
|
|
|
|
|
|
|
|
return i386_register_byte (reg);
|
|
|
|
|
}
|
|
|
|
|
|
* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
|
|
|
|
static int
|
2001-11-04 22:06:16 +08:00
|
|
|
|
i386_linux_register_raw_size (int reg)
|
|
|
|
|
{
|
|
|
|
|
/* Deal with the extra "orig_eax" pseudo register. */
|
|
|
|
|
if (reg == I386_LINUX_ORIG_EAX_REGNUM)
|
|
|
|
|
return 4;
|
|
|
|
|
|
|
|
|
|
return i386_register_raw_size (reg);
|
|
|
|
|
}
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
|
|
|
|
|
/* Recognizing signal handler frames. */
|
|
|
|
|
|
2002-02-25 06:31:19 +08:00
|
|
|
|
/* GNU/Linux has two flavors of signals. Normal signal handlers, and
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
"realtime" (RT) signals. The RT signals can provide additional
|
|
|
|
|
information to the signal handler if the SA_SIGINFO flag is set
|
|
|
|
|
when establishing a signal handler using `sigaction'. It is not
|
2002-02-25 06:31:19 +08:00
|
|
|
|
unlikely that future versions of GNU/Linux will support SA_SIGINFO
|
|
|
|
|
for normal signals too. */
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
|
|
|
|
|
/* When the i386 Linux kernel calls a signal handler and the
|
|
|
|
|
SA_RESTORER flag isn't set, the return address points to a bit of
|
|
|
|
|
code on the stack. This function returns whether the PC appears to
|
|
|
|
|
be within this bit of code.
|
|
|
|
|
|
|
|
|
|
The instruction sequence for normal signals is
|
|
|
|
|
pop %eax
|
|
|
|
|
mov $0x77,%eax
|
|
|
|
|
int $0x80
|
|
|
|
|
or 0x58 0xb8 0x77 0x00 0x00 0x00 0xcd 0x80.
|
|
|
|
|
|
|
|
|
|
Checking for the code sequence should be somewhat reliable, because
|
|
|
|
|
the effect is to call the system call sigreturn. This is unlikely
|
|
|
|
|
to occur anywhere other than a signal trampoline.
|
|
|
|
|
|
|
|
|
|
It kind of sucks that we have to read memory from the process in
|
|
|
|
|
order to identify a signal trampoline, but there doesn't seem to be
|
2002-04-25 00:28:16 +08:00
|
|
|
|
any other way. The PC_IN_SIGTRAMP macro in tm-linux.h arranges to
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
only call us if no function name could be identified, which should
|
|
|
|
|
be the case since the code is on the stack.
|
|
|
|
|
|
|
|
|
|
Detection of signal trampolines for handlers that set the
|
|
|
|
|
SA_RESTORER flag is in general not possible. Unfortunately this is
|
|
|
|
|
what the GNU C Library has been doing for quite some time now.
|
|
|
|
|
However, as of version 2.1.2, the GNU C Library uses signal
|
|
|
|
|
trampolines (named __restore and __restore_rt) that are identical
|
|
|
|
|
to the ones used by the kernel. Therefore, these trampolines are
|
|
|
|
|
supported too. */
|
|
|
|
|
|
|
|
|
|
#define LINUX_SIGTRAMP_INSN0 (0x58) /* pop %eax */
|
|
|
|
|
#define LINUX_SIGTRAMP_OFFSET0 (0)
|
|
|
|
|
#define LINUX_SIGTRAMP_INSN1 (0xb8) /* mov $NNNN,%eax */
|
|
|
|
|
#define LINUX_SIGTRAMP_OFFSET1 (1)
|
|
|
|
|
#define LINUX_SIGTRAMP_INSN2 (0xcd) /* int */
|
|
|
|
|
#define LINUX_SIGTRAMP_OFFSET2 (6)
|
|
|
|
|
|
|
|
|
|
static const unsigned char linux_sigtramp_code[] =
|
|
|
|
|
{
|
|
|
|
|
LINUX_SIGTRAMP_INSN0, /* pop %eax */
|
|
|
|
|
LINUX_SIGTRAMP_INSN1, 0x77, 0x00, 0x00, 0x00, /* mov $0x77,%eax */
|
|
|
|
|
LINUX_SIGTRAMP_INSN2, 0x80 /* int $0x80 */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#define LINUX_SIGTRAMP_LEN (sizeof linux_sigtramp_code)
|
|
|
|
|
|
|
|
|
|
/* If PC is in a sigtramp routine, return the address of the start of
|
|
|
|
|
the routine. Otherwise, return 0. */
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
i386_linux_sigtramp_start (CORE_ADDR pc)
|
|
|
|
|
{
|
|
|
|
|
unsigned char buf[LINUX_SIGTRAMP_LEN];
|
|
|
|
|
|
|
|
|
|
/* We only recognize a signal trampoline if PC is at the start of
|
|
|
|
|
one of the three instructions. We optimize for finding the PC at
|
|
|
|
|
the start, as will be the case when the trampoline is not the
|
|
|
|
|
first frame on the stack. We assume that in the case where the
|
|
|
|
|
PC is not at the start of the instruction sequence, there will be
|
|
|
|
|
a few trailing readable bytes on the stack. */
|
|
|
|
|
|
|
|
|
|
if (read_memory_nobpt (pc, (char *) buf, LINUX_SIGTRAMP_LEN) != 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (buf[0] != LINUX_SIGTRAMP_INSN0)
|
|
|
|
|
{
|
|
|
|
|
int adjust;
|
|
|
|
|
|
|
|
|
|
switch (buf[0])
|
|
|
|
|
{
|
|
|
|
|
case LINUX_SIGTRAMP_INSN1:
|
|
|
|
|
adjust = LINUX_SIGTRAMP_OFFSET1;
|
|
|
|
|
break;
|
|
|
|
|
case LINUX_SIGTRAMP_INSN2:
|
|
|
|
|
adjust = LINUX_SIGTRAMP_OFFSET2;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pc -= adjust;
|
|
|
|
|
|
|
|
|
|
if (read_memory_nobpt (pc, (char *) buf, LINUX_SIGTRAMP_LEN) != 0)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (memcmp (buf, linux_sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return pc;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This function does the same for RT signals. Here the instruction
|
|
|
|
|
sequence is
|
|
|
|
|
mov $0xad,%eax
|
|
|
|
|
int $0x80
|
|
|
|
|
or 0xb8 0xad 0x00 0x00 0x00 0xcd 0x80.
|
|
|
|
|
|
|
|
|
|
The effect is to call the system call rt_sigreturn. */
|
|
|
|
|
|
|
|
|
|
#define LINUX_RT_SIGTRAMP_INSN0 (0xb8) /* mov $NNNN,%eax */
|
|
|
|
|
#define LINUX_RT_SIGTRAMP_OFFSET0 (0)
|
|
|
|
|
#define LINUX_RT_SIGTRAMP_INSN1 (0xcd) /* int */
|
|
|
|
|
#define LINUX_RT_SIGTRAMP_OFFSET1 (5)
|
|
|
|
|
|
|
|
|
|
static const unsigned char linux_rt_sigtramp_code[] =
|
|
|
|
|
{
|
|
|
|
|
LINUX_RT_SIGTRAMP_INSN0, 0xad, 0x00, 0x00, 0x00, /* mov $0xad,%eax */
|
|
|
|
|
LINUX_RT_SIGTRAMP_INSN1, 0x80 /* int $0x80 */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#define LINUX_RT_SIGTRAMP_LEN (sizeof linux_rt_sigtramp_code)
|
|
|
|
|
|
|
|
|
|
/* If PC is in a RT sigtramp routine, return the address of the start
|
|
|
|
|
of the routine. Otherwise, return 0. */
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
i386_linux_rt_sigtramp_start (CORE_ADDR pc)
|
|
|
|
|
{
|
|
|
|
|
unsigned char buf[LINUX_RT_SIGTRAMP_LEN];
|
|
|
|
|
|
|
|
|
|
/* We only recognize a signal trampoline if PC is at the start of
|
|
|
|
|
one of the two instructions. We optimize for finding the PC at
|
|
|
|
|
the start, as will be the case when the trampoline is not the
|
|
|
|
|
first frame on the stack. We assume that in the case where the
|
|
|
|
|
PC is not at the start of the instruction sequence, there will be
|
|
|
|
|
a few trailing readable bytes on the stack. */
|
|
|
|
|
|
|
|
|
|
if (read_memory_nobpt (pc, (char *) buf, LINUX_RT_SIGTRAMP_LEN) != 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
if (buf[0] != LINUX_RT_SIGTRAMP_INSN0)
|
|
|
|
|
{
|
|
|
|
|
if (buf[0] != LINUX_RT_SIGTRAMP_INSN1)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
pc -= LINUX_RT_SIGTRAMP_OFFSET1;
|
|
|
|
|
|
|
|
|
|
if (read_memory_nobpt (pc, (char *) buf, LINUX_RT_SIGTRAMP_LEN) != 0)
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (memcmp (buf, linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN) != 0)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
return pc;
|
|
|
|
|
}
|
|
|
|
|
|
2002-02-25 06:31:19 +08:00
|
|
|
|
/* Return whether PC is in a GNU/Linux sigtramp routine. */
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
|
* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
|
|
|
|
static int
|
|
|
|
|
i386_linux_pc_in_sigtramp (CORE_ADDR pc, char *name)
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
{
|
|
|
|
|
if (name)
|
|
|
|
|
return STREQ ("__restore", name) || STREQ ("__restore_rt", name);
|
|
|
|
|
|
|
|
|
|
return (i386_linux_sigtramp_start (pc) != 0
|
|
|
|
|
|| i386_linux_rt_sigtramp_start (pc) != 0);
|
|
|
|
|
}
|
|
|
|
|
|
2002-02-25 06:31:19 +08:00
|
|
|
|
/* Assuming FRAME is for a GNU/Linux sigtramp routine, return the
|
|
|
|
|
address of the associated sigcontext structure. */
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
|
2002-07-02 21:48:16 +08:00
|
|
|
|
static CORE_ADDR
|
* i386-linux-nat.c: No need to #include "frame.h" any more.
(LINUX_SIGTRAMP_INSN0, LINUX_SIGTRAMP_OFFSET0,
LINUX_SIGTRAMP_INSN1, LINUX_SIGTRAMP_OFFSET1,
LINUX_SIGTRAMP_INSN2, LINUX_SIGTRAMP_OFFSET2, linux_sigtramp_code,
LINUX_SIGTRAMP_LEN, i386_linux_sigtramp_start,
LINUX_RT_SIGTRAMP_INSN0, LINUX_RT_SIGTRAMP_OFFSET0,
LINUX_RT_SIGTRAMP_INSN1, LINUX_RT_SIGTRAMP_OFFSET1,
linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN,
i386_linux_rt_sigtramp_start, i386_linux_in_sigtramp,
i386_linux_sigcontext_addr, LINUX_SIGCONTEXT_PC_OFFSET,
i386_linux_sigtramp_saved_pc, LINUX_SIGCONTEXT_SP_OFFSET,
i386_linux_sigtramp_saved_sp): Deleted. Folks rightly pointed
out that these are target-dependent, and useful in non-native
configurations. Moved to...
* i386-linux-tdep.c: ... Here, a new file.
* Makefile.in (ALLDEPFILES): Add i386-linux-tdep.c.
(i386-linux-tdep.o): New rule.
(i386-linux-nat.o): We no longer depend on frame.h.
* config/i386/linux.mt (TDEPFILES): Add i386-linux-tdep.o.
2000-03-21 04:38:29 +08:00
|
|
|
|
i386_linux_sigcontext_addr (struct frame_info *frame)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR pc;
|
|
|
|
|
|
|
|
|
|
pc = i386_linux_sigtramp_start (frame->pc);
|
|
|
|
|
if (pc)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR sp;
|
|
|
|
|
|
|
|
|
|
if (frame->next)
|
|
|
|
|
/* If this isn't the top frame, the next frame must be for the
|
|
|
|
|
signal handler itself. The sigcontext structure lives on
|
|
|
|
|
the stack, right after the signum argument. */
|
|
|
|
|
return frame->next->frame + 12;
|
|
|
|
|
|
|
|
|
|
/* This is the top frame. We'll have to find the address of the
|
|
|
|
|
sigcontext structure by looking at the stack pointer. Keep
|
|
|
|
|
in mind that the first instruction of the sigtramp code is
|
|
|
|
|
"pop %eax". If the PC is at this instruction, adjust the
|
|
|
|
|
returned value accordingly. */
|
|
|
|
|
sp = read_register (SP_REGNUM);
|
|
|
|
|
if (pc == frame->pc)
|
|
|
|
|
return sp + 4;
|
|
|
|
|
return sp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pc = i386_linux_rt_sigtramp_start (frame->pc);
|
|
|
|
|
if (pc)
|
|
|
|
|
{
|
|
|
|
|
if (frame->next)
|
|
|
|
|
/* If this isn't the top frame, the next frame must be for the
|
|
|
|
|
signal handler itself. The sigcontext structure is part of
|
|
|
|
|
the user context. A pointer to the user context is passed
|
|
|
|
|
as the third argument to the signal handler. */
|
|
|
|
|
return read_memory_integer (frame->next->frame + 16, 4) + 20;
|
|
|
|
|
|
|
|
|
|
/* This is the top frame. Again, use the stack pointer to find
|
|
|
|
|
the address of the sigcontext structure. */
|
|
|
|
|
return read_memory_integer (read_register (SP_REGNUM) + 8, 4) + 20;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
error ("Couldn't recognize signal trampoline.");
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2001-11-04 22:06:16 +08:00
|
|
|
|
/* Set the program counter for process PTID to PC. */
|
|
|
|
|
|
* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
|
|
|
|
static void
|
2001-11-04 22:06:16 +08:00
|
|
|
|
i386_linux_write_pc (CORE_ADDR pc, ptid_t ptid)
|
|
|
|
|
{
|
|
|
|
|
write_register_pid (PC_REGNUM, pc, ptid);
|
|
|
|
|
|
|
|
|
|
/* We must be careful with modifying the program counter. If we
|
|
|
|
|
just interrupted a system call, the kernel might try to restart
|
|
|
|
|
it when we resume the inferior. On restarting the system call,
|
|
|
|
|
the kernel will try backing up the program counter even though it
|
|
|
|
|
no longer points at the system call. This typically results in a
|
|
|
|
|
SIGSEGV or SIGILL. We can prevent this by writing `-1' in the
|
|
|
|
|
"orig_eax" pseudo-register.
|
|
|
|
|
|
|
|
|
|
Note that "orig_eax" is saved when setting up a dummy call frame.
|
|
|
|
|
This means that it is properly restored when that frame is
|
|
|
|
|
popped, and that the interrupted system call will be restarted
|
|
|
|
|
when we resume the inferior on return from a function call from
|
|
|
|
|
within GDB. In all other cases the system call will not be
|
|
|
|
|
restarted. */
|
|
|
|
|
write_register_pid (I386_LINUX_ORIG_EAX_REGNUM, -1, ptid);
|
|
|
|
|
}
|
|
|
|
|
|
2000-08-30 07:31:10 +08:00
|
|
|
|
/* Calling functions in shared libraries. */
|
2001-11-04 22:06:16 +08:00
|
|
|
|
|
2000-08-30 07:31:10 +08:00
|
|
|
|
/* Find the minimal symbol named NAME, and return both the minsym
|
|
|
|
|
struct and its objfile. This probably ought to be in minsym.c, but
|
|
|
|
|
everything there is trying to deal with things like C++ and
|
|
|
|
|
SOFUN_ADDRESS_MAYBE_TURQUOISE, ... Since this is so simple, it may
|
|
|
|
|
be considered too special-purpose for general consumption. */
|
|
|
|
|
|
|
|
|
|
static struct minimal_symbol *
|
|
|
|
|
find_minsym_and_objfile (char *name, struct objfile **objfile_p)
|
|
|
|
|
{
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
|
|
|
|
|
ALL_OBJFILES (objfile)
|
|
|
|
|
{
|
|
|
|
|
struct minimal_symbol *msym;
|
|
|
|
|
|
|
|
|
|
ALL_OBJFILE_MSYMBOLS (objfile, msym)
|
|
|
|
|
{
|
|
|
|
|
if (SYMBOL_NAME (msym)
|
|
|
|
|
&& STREQ (SYMBOL_NAME (msym), name))
|
|
|
|
|
{
|
|
|
|
|
*objfile_p = objfile;
|
|
|
|
|
return msym;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
|
skip_hurd_resolver (CORE_ADDR pc)
|
|
|
|
|
{
|
|
|
|
|
/* The HURD dynamic linker is part of the GNU C library, so many
|
|
|
|
|
GNU/Linux distributions use it. (All ELF versions, as far as I
|
|
|
|
|
know.) An unresolved PLT entry points to "_dl_runtime_resolve",
|
|
|
|
|
which calls "fixup" to patch the PLT, and then passes control to
|
|
|
|
|
the function.
|
|
|
|
|
|
|
|
|
|
We look for the symbol `_dl_runtime_resolve', and find `fixup' in
|
|
|
|
|
the same objfile. If we are at the entry point of `fixup', then
|
|
|
|
|
we set a breakpoint at the return address (at the top of the
|
|
|
|
|
stack), and continue.
|
|
|
|
|
|
|
|
|
|
It's kind of gross to do all these checks every time we're
|
|
|
|
|
called, since they don't change once the executable has gotten
|
|
|
|
|
started. But this is only a temporary hack --- upcoming versions
|
2002-02-25 06:31:19 +08:00
|
|
|
|
of GNU/Linux will provide a portable, efficient interface for
|
2000-08-30 07:31:10 +08:00
|
|
|
|
debugging programs that use shared libraries. */
|
|
|
|
|
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
struct minimal_symbol *resolver
|
|
|
|
|
= find_minsym_and_objfile ("_dl_runtime_resolve", &objfile);
|
|
|
|
|
|
|
|
|
|
if (resolver)
|
|
|
|
|
{
|
|
|
|
|
struct minimal_symbol *fixup
|
2001-12-11 06:04:10 +08:00
|
|
|
|
= lookup_minimal_symbol ("fixup", NULL, objfile);
|
2000-08-30 07:31:10 +08:00
|
|
|
|
|
|
|
|
|
if (fixup && SYMBOL_VALUE_ADDRESS (fixup) == pc)
|
|
|
|
|
return (SAVED_PC_AFTER_CALL (get_current_frame ()));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* See the comments for SKIP_SOLIB_RESOLVER at the top of infrun.c.
|
|
|
|
|
This function:
|
|
|
|
|
1) decides whether a PLT has sent us into the linker to resolve
|
|
|
|
|
a function reference, and
|
|
|
|
|
2) if so, tells us where to set a temporary breakpoint that will
|
|
|
|
|
trigger when the dynamic linker is done. */
|
|
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
|
i386_linux_skip_solib_resolver (CORE_ADDR pc)
|
|
|
|
|
{
|
|
|
|
|
CORE_ADDR result;
|
|
|
|
|
|
|
|
|
|
/* Plug in functions for other kinds of resolvers here. */
|
|
|
|
|
result = skip_hurd_resolver (pc);
|
|
|
|
|
if (result)
|
|
|
|
|
return result;
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
2000-11-01 03:35:04 +08:00
|
|
|
|
|
2001-03-13 20:42:08 +08:00
|
|
|
|
/* Fetch (and possibly build) an appropriate link_map_offsets
|
2002-02-25 06:31:19 +08:00
|
|
|
|
structure for native GNU/Linux x86 targets using the struct offsets
|
2001-03-13 20:42:08 +08:00
|
|
|
|
defined in link.h (but without actual reference to that file).
|
2000-11-01 03:35:04 +08:00
|
|
|
|
|
2002-02-25 06:31:19 +08:00
|
|
|
|
This makes it possible to access GNU/Linux x86 shared libraries
|
|
|
|
|
from a GDB that was not built on an GNU/Linux x86 host (for cross
|
|
|
|
|
debugging). */
|
2000-11-01 03:35:04 +08:00
|
|
|
|
|
* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
|
|
|
|
static struct link_map_offsets *
|
2000-11-01 03:35:04 +08:00
|
|
|
|
i386_linux_svr4_fetch_link_map_offsets (void)
|
|
|
|
|
{
|
|
|
|
|
static struct link_map_offsets lmo;
|
2001-03-13 20:42:08 +08:00
|
|
|
|
static struct link_map_offsets *lmp = NULL;
|
2000-11-01 03:35:04 +08:00
|
|
|
|
|
2001-03-13 20:42:08 +08:00
|
|
|
|
if (lmp == NULL)
|
2000-11-01 03:35:04 +08:00
|
|
|
|
{
|
|
|
|
|
lmp = &lmo;
|
|
|
|
|
|
2001-03-13 20:42:08 +08:00
|
|
|
|
lmo.r_debug_size = 8; /* The actual size is 20 bytes, but
|
|
|
|
|
this is all we need. */
|
2000-11-01 03:35:04 +08:00
|
|
|
|
lmo.r_map_offset = 4;
|
|
|
|
|
lmo.r_map_size = 4;
|
|
|
|
|
|
2001-03-13 20:42:08 +08:00
|
|
|
|
lmo.link_map_size = 20; /* The actual size is 552 bytes, but
|
|
|
|
|
this is all we need. */
|
2000-11-01 03:35:04 +08:00
|
|
|
|
lmo.l_addr_offset = 0;
|
|
|
|
|
lmo.l_addr_size = 4;
|
|
|
|
|
|
|
|
|
|
lmo.l_name_offset = 4;
|
|
|
|
|
lmo.l_name_size = 4;
|
|
|
|
|
|
|
|
|
|
lmo.l_next_offset = 12;
|
|
|
|
|
lmo.l_next_size = 4;
|
|
|
|
|
|
|
|
|
|
lmo.l_prev_offset = 16;
|
|
|
|
|
lmo.l_prev_size = 4;
|
|
|
|
|
}
|
|
|
|
|
|
2001-03-13 20:42:08 +08:00
|
|
|
|
return lmp;
|
2000-11-01 03:35:04 +08:00
|
|
|
|
}
|
* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
|
|
|
{
|
|
|
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
|
|
|
|
|
|
/* GNU/Linux uses ELF. */
|
|
|
|
|
i386_elf_init_abi (info, gdbarch);
|
|
|
|
|
|
|
|
|
|
/* We support the SSE registers on GNU/Linux. */
|
|
|
|
|
tdep->num_xmm_regs = I386_NUM_XREGS - 1;
|
|
|
|
|
/* set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS); */
|
|
|
|
|
|
|
|
|
|
/* Since we have the extra "orig_eax" register on GNU/Linux, we have
|
|
|
|
|
to adjust a few things. */
|
|
|
|
|
|
|
|
|
|
set_gdbarch_write_pc (gdbarch, i386_linux_write_pc);
|
|
|
|
|
set_gdbarch_num_regs (gdbarch, I386_SSE_NUM_REGS + 1);
|
|
|
|
|
set_gdbarch_register_name (gdbarch, i386_linux_register_name);
|
|
|
|
|
set_gdbarch_register_bytes (gdbarch, I386_SSE_SIZEOF_REGS + 4);
|
|
|
|
|
set_gdbarch_register_byte (gdbarch, i386_linux_register_byte);
|
|
|
|
|
set_gdbarch_register_raw_size (gdbarch, i386_linux_register_raw_size);
|
|
|
|
|
|
|
|
|
|
tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */
|
|
|
|
|
|
2002-07-02 21:48:16 +08:00
|
|
|
|
tdep->sigcontext_addr = i386_linux_sigcontext_addr;
|
|
|
|
|
tdep->sc_pc_offset = 14 * 4; /* From <asm/sigcontext.h>. */
|
|
|
|
|
tdep->sc_sp_offset = 7 * 4;
|
* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
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|
|
|
|
2002-07-02 21:48:16 +08:00
|
|
|
|
/* When the i386 Linux kernel calls a signal handler, the return
|
|
|
|
|
address points to a bit of code on the stack. This function is
|
|
|
|
|
used to identify this bit of code as a signal trampoline in order
|
|
|
|
|
to support backtracing through calls to signal handlers. */
|
* config/i386/i386sol2.mt (TDEPFILES): Add i386-sol2-tdep.o and
i386bsd-tdep.o. Remove solib.o, solib-svr4.o and solib-legacy.o.
Move these to ...
* config/i386/i386sol2.mh: ... here.
* config/i386/tm-i386sol2.h (STAB_REG_TO_REGNUM): Remove define.
(sigtramp_saved_pc, I386V4_SIGTRAMP_SAVED_PC): Don't #undef.
(SIGCONTEXT_PC_OFFSET): Remove define.
(IN_SIGTRAMP): Remove define.
* i386-sol2-tdep.c: New file.
* config/i386/i386nw.mt (TM_FILE): Change to tm-i386.h.
* config/i386/tm-i386nw.h: Removed.
* config/i386/tm-fbsd.h (STAB_REG_TO_REGNUM,
USE_STRUCT_CONVENTION): Remove defines.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsd.h (JB_ELEMENT_SIZE, JB_PC,
GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(IN_SIGTRAMP): Remove define.
(i386bsd_in_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Turn into a
function. Update comment accordingly
(SIGTRAMP_START, SIGTRAMP): Adjust definition accordingly.
(FRAME_SAVED_PC): Remove define.
(i386bsd_frame_saved_pc): Remove prototype.
* config/i386/tm-nbsdaout.h (i386nbsd_aout_use_struct_convention):
Remove prototype.
(USE_STRUCT_CONVENTION): Remove prototype.
* i386bsd-nat.c (i386bsd_sigcontext_pc_offset): Remove
declaration.
(_initialize_i386bsd_nat): Revise logic to determine some
constants at compile time when compiling a native GDB. Warn if
things don't match up with what we expect.
* i386bsd-tdep.c (i386bsd_sigtramp_start, i386bsd_sigtramp_end):
Remove variables.
(i386bsd_in_sigtramp): Rename tp i386bsd_pc_in_sigtramp. Rewrite
to use date stored in `struct gdbarch_tdep'.
(i386bsd_sigcontext_offset): Remove varaible.
(i386bsd_sigtramp_saved_pc): Make public. Rewrite to use data
stored in `struct gdbarch_tdep'.
(i386bsd_frame_saved_pc): Make static.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): New functions.
(i386bsd_sc_pc_offset, i386nbsd_sc_pc_offset,
i386fbsd_sigtramp_start, i386fbsd_sigtramp_end,
i386fbsd4_sc_pc_offset): New variables.
(i386bsd_init_abi, i386nbsd_init_abi, i386nbsdelf_init_abi,
i386fbsdaout_init_abi, i386fbsd_init_abi, i386fbsd4_init_abi): New
functions.
(i386bsd_aout_osabi_sniffer, _initialize_i386bsd_tdep): New
functions.
* i386fbsd-nat.c (_initialize_i386fbsd_nat): Fix type in comment.
Modify the value of i386fbsd_sigtramp_start and
i386fbsd_sigtramp_end instead of i386bsd_sigtramp_start and
i386fbsd_sigtramp_end.
* i386nbsd-tdep.c: (i386nbsd_aout_use_struct_convention): Remove
function.
* config/i386/tm-linux.h (I386_LINUX_ORIG_EAX_REGNUM): Move
define to i386-linux-tdep.h.
(NUM_REGS, MAX_NUM_REGS, REGISTER_BYTES, REGISTER_NAME,
REGISTER_BYTE, REGISTER_RAW_SIZE, STAB_REG_TO_REGNUM): Remove
defines.
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size): Remove prototypes.
(i386_linux_svr4_fetch_link_map_offsets): Remove prototype.
(SVR4_FETCH_LINK_MAP_OFFSETS): Remove define.
(IN_SIGTRAMP, FRAME_CHAIN, FRAME_SAVED_PC, SAVED_PC_AFTER_CALL,
TARGET_WRITE_PC): Remove defines.
(i386_linux_in_sigtramp, i386_linux_frame_chain,
i386_linux_frame_saved_pc, i386_linux_saved_pc_after_call,
i386_linux_write_pc): Remove prototypes.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-linux-tdep.h: New file.
* i386-linux-nat.c: Include "i386-linux-tdep.h".
* i386-linux-tdep.c: Include "i386-tdep.h" and
"i386-linux-tdep.h".
(i386_linux_register_name, i386_linux_register_byte,
i386_linux_register_raw_size, i386_linux_in_sigtramp,
i386_linux_write_pc, i386_linux_svr4_fetch_link_map_offsets):
Make static.
(i386_linux_init_abi): New function.
(_initialize_i386_linux_tdep): New function.
* config/i386/tm-i386.h (SAVED_PC_AFTER_CALL): Remove define.
(i386_saved_pc_after_call): Remove prototype.
(MAX_NUM_REGS): Increase to deal with Linux's orig_eax "register".
(REGISTER_NAME, STAB_REG_TO_REGNUM, SDB_REG_TO_REGNUM,
DWARF_REG_TO_REGNUM, DWARF2_REG_TO_REGNUM): Remove defines.
(i386_register_name, i386_stab_reg_to_regnum,
i386_dwarf_reg_to_regnum): Remove prototypes.
(SIZEOF_GREGS, SIZEOF_FPU_REGS, SIZEOF_FPU_CTL_REGS,
SIZEOF_SSE_REGS): Remove defines.
(REGISTER_BYTES): Remove define.
(REGISTER_BYTE, REGISTER_RAW_SIZE): Remove defines.
(i386_register_byte, i386_register_raw_size): Remove prototypes.
(FRAME_CHAIN, FRAME_SAVED_PC): Remove defines.
(i386_frame_chain, i386_frame_saved_pc): Remove prototypes.
* config/i386/tm-i386v4.h (FRAME_CHAIN_VALID): Remove define.
(JB_ELEMENT_SIZE, JB_PC, JB_EBX, JB_ESI, JB_EDI, JB_EBP, JB_ESP,
JB_EDX, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
(I386V4_SIGTRAMP_SAVED_PC, IN_SIGTRAMP): Remove defines.
(sigtramp_saved_pc): Remove define.
(i386v4_sigtramp_saved_pc): Remove prototype.
* config/i386/tm-go32.h (FRAME_CHAIN,
FRAMELESS_FUNCTION_INVOCATION, FRAME_SAVED_PC): Remove defines.
(i386go32_frame_saved_pc): Remove prototype.
(JB_ELEMENT_SIZE, JB_PC, GET_LONGJMP_TARGET): Remove defines.
(get_longjmp_target): Remove prototype.
* i386-tdep.h: Include "osabi.h".
(enum i386_abi): Removed.
(enum struct_return): New enum.
(struct gdbarch_tdep): Remove abi member, add osabi, jb_pc_offset,
struct_return, sigtramp_saved_pc, sigtramp_start, sigtramp_end and
sc_pc_offset members.
(i386_gdbarch_register_os_abi): Remove prototype.
(I386_NUM_GREGS, I386_NUM_FREGS, I386_NUM_XREGS,
I386_SSE_NUM_REGS): New defines.
(I386_SIZEOF_GREGS, I386_SIZEOF_FREGS, I386_SIZEOF_XREGS,
I386_SSE_SIZEOF_REGS): New defines.
(i386_register_name, i386_register_byte, i386_register_raw_size):
New prototypes.
(i386_elf_init_abi, i386_svr4_init_abi): New prototypes.
(i386bsd_sigtramp_saved_pc): New prototype.
* i386-tdep.c: Don't include "elf-bfd.h".
(i386_stab_reg_to_regnum, i386_dwarf_reg_to_regnum,
i386_frame_chain, i386_saved_pc_after_call): Make static.
(i386_frame_saved_pc): Rewrite to call architecture dependent
function to deal with signal handlers. Make static.
(i386go32_frame_saved_pc): Removed.
[GET_LONGJMP_TARGET] (JB_PC, JB_ELEMENT_SIZE, get_longjmp_target):
Removed.
(i386_get_longjmp_target): New function.
(default_struct_convention, pcc_struct_convention,
reg_struct_convention, valid_conventions, struct_convention): New
variables.
(i386_use_struct_convention): New function.
(i386v4_sigtramp_saved_pc): Renamed to
i386_svr4_sigtramp_saved_pc. Made static. Moved.
(i386_pc_in_sigtramp): New function.
(i386_abi_names): Removed.
(ABI_TAG_OS_GNU_LINUX, ABI_TAG_OS_GNU_HURD,
ABI_TAG_OS_GNU_SOLARIS, ABI_TAG_OS_FREEBSD, ABI_TAG_OS_NETBSD):
Removed.
(process_note_sections, i386_elf_abi_from_note, i386_elf_abi,
i386_gdbarch_register_os_abi): Removed.
(struct i386_abi_handler): Removed.
(i386_abi_handler_list): Removed.
(i386_svr4_pc_in_sigtramp, i386_go32_pc_in_sigtramp): New
functions.
(i386_elf_init_abi, i386_svr4_init_abi, i386_go32_init_abi,
i386_nw_init_abi): New functions.
(i386_gdbarch_init): Rewritten to use generic OS ABI framework.
Use set_gdbarch_xxx() calls instead of relying on macros for a
number of calls.
(i386_coff_osabi_sniffer, i386_nlm_osabi_sniffer): New functions.
(_initialize_i386_tdep): Add new 'struct-convcention' command.
Register the various architecture variants defined in this file.
2002-06-15 03:42:20 +08:00
|
|
|
|
set_gdbarch_pc_in_sigtramp (gdbarch, i386_linux_pc_in_sigtramp);
|
|
|
|
|
|
|
|
|
|
set_solib_svr4_fetch_link_map_offsets (gdbarch,
|
|
|
|
|
i386_linux_svr4_fetch_link_map_offsets);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
|
|
|
|
extern void _initialize_i386_linux_tdep (void);
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
_initialize_i386_linux_tdep (void)
|
|
|
|
|
{
|
|
|
|
|
gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_LINUX,
|
|
|
|
|
i386_linux_init_abi);
|
|
|
|
|
}
|