2003-08-23 16:56:45 +08:00
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/* Target-dependent code for NetBSD/i386.
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2007-01-10 01:59:20 +08:00
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Copyright (C) 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001, 2002, 2003,
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2008-01-02 06:53:26 +08:00
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2004, 2007, 2008 Free Software Foundation, Inc.
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2000-09-08 04:08:40 +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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2007-08-24 02:08:50 +08:00
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the Free Software Foundation; either version 3 of the License, or
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2000-09-08 04:08:40 +08:00
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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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2007-08-24 02:08:50 +08:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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2000-09-08 04:08:40 +08:00
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#include "defs.h"
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2003-11-27 21:28:50 +08:00
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#include "arch-utils.h"
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* amd64-tdep.c (amd64_sigtramp_frame_sniffer): Rewrite to use new
sigtramp_p member of `struct gdbarch_tdep'. Also check whether
the program counter is in the range specified by `struct
gdbarch_tdep'.
* amd64-linux-tdep.c: Include "symtab.h".
(amd64_linux_pc_in_sigtramp): Remove function.
(amd64_linux_sigtramp_p): New function.
(amd64_linux_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* amd64nbsd-tdep.c: Include "symtab.h".
(amd64nbsd_sigtramp_p): New function.
(amd64nbsd_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* amd64obsd-tdep.c: Include "symtab.h" and "objfiles.h". Add a
few comments.
(amd64obsd_pc_in_sigtramp): Remove function.
(amd64obsd_sigtramp_p): New function.
(amd64obsd_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-tdep.h (struct gdbarch_tdep): Add sigtramp_p member.
(i386bsd_pc_ins_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Remove prototypes.
* i386-tdep.c (i386_sigtramp_frame_sniffer): Rewrite to use new
sigtramp_p member of `struct gdbarch_tdep'. Also check whether
the program counter is in the range specified by `struct
gdbarch_tdep'.
(i386_pc_in_sigtramp, i386_svr4_pc_in_sigtramp): Remove functions.
(i386_sigtramp_p, i386_svr4_sigtramp_p): New functions.
(i386_go32_pc_in_sigtramp): Remove function.
(i386_svr4_init_abi): Don't set deprecated_pc_in_sigtramp.
Initialize TDEP->sigtramp_p.
(i386_go32_init_abi): Initialize TDEP->sigtramp_p to NULL.
(i386_gdbarch_init): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-linux-tdep.c: Adjust comments.
(i386_linux_pc_in_sigtramp): Remove function.
(i386_linux_sigtramp_p): New function.
(i386_linux_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-nto-tdep.c: Update copyright year.
(i386nto_pc_in_sigtramp): Remove function.
(i386nto_sigtramp_p): New function.
(i386nto_sigcontext_addr): Use I386_ESP_REGNUM instead of
SP_REGNUM.
(i386nto_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-sol2-tdep.c: Update copyright year.
(i386_sol2_pc_in_sigtramp): Remove function.
(i386_sol2_sigtramp_p): New function.
(i386_sol2_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386bsd-tdep.c (i386bsd_pc_in_sigtramp): Remove function.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Remove functions.
(i386bsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start and deprecated_sigtramp_end.
* i386nbsd-tdep.c: Include "frame.h" and "symtab.h".
(i386nbsd_pc_in_sigtramp): Remove function.
(i386nbsd_sigtramp_p): New function.
(i386nbsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start, deprecated_sigtramp_end. Initialize
TDEP->sigtramp_start, TDEP->sigtramp_end and TDEP->sigtramp_p.
* i386obsd-tdep.c: Include "frame.h", "symtab.h" and "objfiles.h".
(i386obsd_pc_in_sigtramp): Remove function.
(i386obsd_sigtramp_p): New function.
(i386obsd_sigtramp_start, i386obsd_sigtramp_end): Remove
functions.
(i386bsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start, deprecated_sigtramp_end. Initialize
TDEP->sigtramp_p.
* Makefile.in (amd64-linux-tdep.o, amd64nbsd-tdep.o,
amd64obsd-tdep.o, i386nbsd-tdep.o, i386obsd-tdep.o): Update
dependencies.
2004-04-10 00:28:50 +08:00
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#include "frame.h"
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2002-05-12 05:22:51 +08:00
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#include "gdbcore.h"
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#include "regcache.h"
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2003-11-27 21:28:50 +08:00
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#include "regset.h"
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2003-01-05 07:38:46 +08:00
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#include "osabi.h"
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* amd64-tdep.c (amd64_sigtramp_frame_sniffer): Rewrite to use new
sigtramp_p member of `struct gdbarch_tdep'. Also check whether
the program counter is in the range specified by `struct
gdbarch_tdep'.
* amd64-linux-tdep.c: Include "symtab.h".
(amd64_linux_pc_in_sigtramp): Remove function.
(amd64_linux_sigtramp_p): New function.
(amd64_linux_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* amd64nbsd-tdep.c: Include "symtab.h".
(amd64nbsd_sigtramp_p): New function.
(amd64nbsd_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* amd64obsd-tdep.c: Include "symtab.h" and "objfiles.h". Add a
few comments.
(amd64obsd_pc_in_sigtramp): Remove function.
(amd64obsd_sigtramp_p): New function.
(amd64obsd_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-tdep.h (struct gdbarch_tdep): Add sigtramp_p member.
(i386bsd_pc_ins_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Remove prototypes.
* i386-tdep.c (i386_sigtramp_frame_sniffer): Rewrite to use new
sigtramp_p member of `struct gdbarch_tdep'. Also check whether
the program counter is in the range specified by `struct
gdbarch_tdep'.
(i386_pc_in_sigtramp, i386_svr4_pc_in_sigtramp): Remove functions.
(i386_sigtramp_p, i386_svr4_sigtramp_p): New functions.
(i386_go32_pc_in_sigtramp): Remove function.
(i386_svr4_init_abi): Don't set deprecated_pc_in_sigtramp.
Initialize TDEP->sigtramp_p.
(i386_go32_init_abi): Initialize TDEP->sigtramp_p to NULL.
(i386_gdbarch_init): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-linux-tdep.c: Adjust comments.
(i386_linux_pc_in_sigtramp): Remove function.
(i386_linux_sigtramp_p): New function.
(i386_linux_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-nto-tdep.c: Update copyright year.
(i386nto_pc_in_sigtramp): Remove function.
(i386nto_sigtramp_p): New function.
(i386nto_sigcontext_addr): Use I386_ESP_REGNUM instead of
SP_REGNUM.
(i386nto_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386-sol2-tdep.c: Update copyright year.
(i386_sol2_pc_in_sigtramp): Remove function.
(i386_sol2_sigtramp_p): New function.
(i386_sol2_init_abi): Initialize TDEP->sigtramp_p. Don't set
deprecated_pc_in_sigtramp.
* i386bsd-tdep.c (i386bsd_pc_in_sigtramp): Remove function.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Remove functions.
(i386bsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start and deprecated_sigtramp_end.
* i386nbsd-tdep.c: Include "frame.h" and "symtab.h".
(i386nbsd_pc_in_sigtramp): Remove function.
(i386nbsd_sigtramp_p): New function.
(i386nbsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start, deprecated_sigtramp_end. Initialize
TDEP->sigtramp_start, TDEP->sigtramp_end and TDEP->sigtramp_p.
* i386obsd-tdep.c: Include "frame.h", "symtab.h" and "objfiles.h".
(i386obsd_pc_in_sigtramp): Remove function.
(i386obsd_sigtramp_p): New function.
(i386obsd_sigtramp_start, i386obsd_sigtramp_end): Remove
functions.
(i386bsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start, deprecated_sigtramp_end. Initialize
TDEP->sigtramp_p.
* Makefile.in (amd64-linux-tdep.o, amd64nbsd-tdep.o,
amd64obsd-tdep.o, i386nbsd-tdep.o, i386obsd-tdep.o): Update
dependencies.
2004-04-10 00:28:50 +08:00
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#include "symtab.h"
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2007-12-30 01:01:41 +08:00
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#include "trad-frame.h"
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#include "tramp-frame.h"
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2000-09-08 04:08:40 +08:00
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2003-11-27 21:28:50 +08:00
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#include "gdb_assert.h"
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#include "gdb_string.h"
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2002-09-02 07:24:19 +08:00
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#include "i386-tdep.h"
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2002-05-12 05:22:51 +08:00
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#include "i387-tdep.h"
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2002-09-02 07:24:19 +08:00
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#include "nbsd-tdep.h"
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2002-09-03 02:09:07 +08:00
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#include "solib-svr4.h"
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2003-11-27 21:28:50 +08:00
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/* From <machine/reg.h>. */
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static int i386nbsd_r_reg_offset[] =
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2002-05-12 05:22:51 +08:00
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{
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2003-11-27 21:28:50 +08:00
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0 * 4, /* %eax */
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1 * 4, /* %ecx */
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2 * 4, /* %edx */
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3 * 4, /* %ebx */
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4 * 4, /* %esp */
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5 * 4, /* %ebp */
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6 * 4, /* %esi */
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7 * 4, /* %edi */
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8 * 4, /* %eip */
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9 * 4, /* %eflags */
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10 * 4, /* %cs */
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11 * 4, /* %ss */
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12 * 4, /* %ds */
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13 * 4, /* %es */
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14 * 4, /* %fs */
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15 * 4 /* %gs */
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2002-05-12 05:22:51 +08:00
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};
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2002-09-02 07:24:19 +08:00
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/* From <machine/signal.h>. */
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2003-11-27 21:28:50 +08:00
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int i386nbsd_sc_reg_offset[] =
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From Michal Ludvig <mludvig@suse.cz>:
* i386-tdep.h (struct gdbarch_tdep): Add members `sc_reg_offset'
and `sc_num_regs'.
(I386_EAX_REGNUM, I386_EDX_REGNUM, I386_ESP_REGNUM,
I386_EBP_REGNUM, I386_EIP_REGNUM, I386_EFLAGS_REGNUM,
I386_ST0_REGNUM): Move here from...
* i386-tdep.c: ... here.
(I386_NUM_SAVED_REGS): Define to I386_NUM_REGS.
(i386_sigtramp_frame_cache): Use `sc_reg_offset' to find saved
registers if possible.
(i386_gdbarch_init): Initialize TDEP->sc_reg_offset.
* i386bsd-tdep.c (i386bsd_sc_pc_offset, i386bsd_sc_sp_offset):
Remove variables.
(i386bsd_sc_reg_offset): New variable.
(i386bsd_init_abi): Initialize TDEP->sc_reg_offset and
TDEP->sc_num_regs instead of TDEP->sc_pc_offset and
TDEP->sc_sp_offset.
(i386fbsd_sc_reg_offset): New variable.
(i386fbsdaout_init_abi): Initialize TDEP->sc_reg_offset and
TDEP->sc_num_regs.
(i386fbsd4_sc_pc_offset, i386fbsd4_sc_sp_offset): Remove
variables.
(i386fbsd4_sc_reg_offset): New variable.
(i3864bsd4_init_abi): Initialize TDEP->sc_reg_offset and
TDEP->sc_num_regs instead of TDEP->sc_pc_offset and
TDEP->sc_sp_offset.
* i386-linux-tdep.c (i386_linux_sc_reg_offset): New variable.
(i386_linux_init_abi): Set TDEP->sc_reg_offset and TDEP->sc_num_regs.
* i386nbsd-tdep.c (i386nbsd_sc_pc_offset, i386nbsd_sc_sp_offset):
Remove variables.
(i386nbsd_sc_reg_offset): New variable.
(i386nbsd_init_abi): Initialize TDEP->sc_reg_offset and
TDEP->sc_num_regs instead of TDEP->sc_pc_offset and
TDEP->sc_sp_offset.
* i386obsd-tdep.c (i386obsd_sc_pc_offset, i386obsd_sc_sp_offset):
Remove variables.
(i386obsd_sc_reg_offset): New variable.
(i386obsd_init_abi): Initialize TDEP->sc_reg_offset and
TDEP->sc_num_regs instead of TDEP->sc_pc_offset and
TDEP->sc_sp_offset.
* i386bsd-nat.c (_initialize_i386bsd_nat): Adjust for changes in
i386bsd-tdep.c, i386nbsd-tdep.c and i386obsd-tdep.c. Add check
for frame pointer offset in `struct sigcontext'.
2003-06-01 00:08:06 +08:00
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{
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10 * 4, /* %eax */
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9 * 4, /* %ecx */
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8 * 4, /* %edx */
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7 * 4, /* %ebx */
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14 * 4, /* %esp */
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6 * 4, /* %ebp */
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5 * 4, /* %esi */
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4 * 4, /* %edi */
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11 * 4, /* %eip */
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13 * 4, /* %eflags */
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12 * 4, /* %cs */
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15 * 4, /* %ss */
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3 * 4, /* %ds */
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2 * 4, /* %es */
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1 * 4, /* %fs */
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0 * 4 /* %gs */
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};
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2002-09-02 07:24:19 +08:00
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2007-12-30 01:01:41 +08:00
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/* From <machine/mcontext.h>. */
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int i386nbsd_mc_reg_offset[] =
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{
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11 * 4, /* %eax */
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10 * 4, /* %ecx */
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9 * 4, /* %edx */
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8 * 4, /* %ebx */
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7 * 4, /* %esp */
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6 * 4, /* %ebp */
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5 * 4, /* %esi */
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4 * 4, /* %edi */
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14 * 4, /* %eip */
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16 * 4, /* %eflags */
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15 * 4, /* %cs */
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18 * 4, /* %ss */
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3 * 4, /* %ds */
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2 * 4, /* %es */
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1 * 4, /* %fs */
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0 * 4 /* %gs */
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};
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static void i386nbsd_sigtramp_cache_init (const struct tramp_frame *,
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struct frame_info *,
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struct trad_frame_cache *,
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CORE_ADDR);
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static const struct tramp_frame i386nbsd_sigtramp_sc16 =
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{
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SIGTRAMP_FRAME,
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1,
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{
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{ 0x8d, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x10, -1 },
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/* leal 0x10(%esp), %eax */
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{ 0x50, -1 }, /* pushl %eax */
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{ 0x50, -1 }, /* pushl %eax */
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{ 0xb8, -1 }, { 0x27, -1 }, {0x01, -1 }, {0x00, -1 }, {0x00, -1 },
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/* movl $0x127, %eax # __sigreturn14 */
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{ 0xcd, -1 }, { 0x80, -1},
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/* int $0x80 */
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{ 0xb8, -1 }, { 0x01, -1 }, {0x00, -1 }, {0x00, -1 }, {0x00, -1 },
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/* movl $0x1, %eax # exit */
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{ 0xcd, -1 }, { 0x80, -1},
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/* int $0x80 */
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{ TRAMP_SENTINEL_INSN, -1 }
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},
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i386nbsd_sigtramp_cache_init
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};
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static const struct tramp_frame i386nbsd_sigtramp_sc2 =
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{
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SIGTRAMP_FRAME,
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1,
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{
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{ 0x8d, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x0c, -1 },
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/* leal 0x0c(%esp), %eax */
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{ 0x89, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
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/* movl %eax, 0x4(%esp) */
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{ 0xb8, -1 }, { 0x27, -1 }, {0x01, -1 }, {0x00, -1 }, {0x00, -1 },
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/* movl $0x127, %eax # __sigreturn14 */
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|
{ 0xcd, -1 }, { 0x80, -1},
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ 0x89, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
|
|
|
|
|
|
/* movl %eax, 0x4(%esp) */
|
|
|
|
|
|
{ 0xb8, -1 }, { 0x01, -1 }, {0x00, -1 }, {0x00, -1 }, {0x00, -1 },
|
|
|
|
|
|
/* movl $0x1, %eax */
|
|
|
|
|
|
{ 0xcd, -1 }, { 0x80, -1},
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ TRAMP_SENTINEL_INSN, -1 }
|
|
|
|
|
|
},
|
|
|
|
|
|
i386nbsd_sigtramp_cache_init
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static const struct tramp_frame i386nbsd_sigtramp_si2 =
|
|
|
|
|
|
{
|
|
|
|
|
|
SIGTRAMP_FRAME,
|
|
|
|
|
|
1,
|
|
|
|
|
|
{
|
|
|
|
|
|
{ 0x8b, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x08, -1 },
|
|
|
|
|
|
/* movl 8(%esp),%eax */
|
|
|
|
|
|
{ 0x89, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
|
|
|
|
|
|
/* movl %eax, 0x4(%esp) */
|
|
|
|
|
|
{ 0xb8, -1 }, { 0x34, -1 }, { 0x01, -1 }, { 0x00, -1 }, { 0x00, -1 },
|
|
|
|
|
|
/* movl $0x134, %eax # setcontext */
|
|
|
|
|
|
{ 0xcd, -1 }, { 0x80, -1 },
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ 0x89, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
|
|
|
|
|
|
/* movl %eax, 0x4(%esp) */
|
|
|
|
|
|
{ 0xb8, -1 }, { 0x01, -1 }, { 0x00, -1 }, { 0x00, -1 }, { 0x00, -1 },
|
|
|
|
|
|
/* movl $0x1, %eax */
|
|
|
|
|
|
{ 0xcd, -1 }, { 0x80, -1 },
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ TRAMP_SENTINEL_INSN, -1 }
|
|
|
|
|
|
},
|
|
|
|
|
|
i386nbsd_sigtramp_cache_init
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static const struct tramp_frame i386nbsd_sigtramp_si31 =
|
|
|
|
|
|
{
|
|
|
|
|
|
SIGTRAMP_FRAME,
|
|
|
|
|
|
1,
|
|
|
|
|
|
{
|
|
|
|
|
|
{ 0x8d, -1 }, { 0x84, -1 }, { 0x24, -1 },
|
|
|
|
|
|
{ 0x8c, -1 }, { 0x00, -1 }, { 0x00, -1 }, { 0x00, -1 },
|
|
|
|
|
|
/* leal 0x8c(%esp), %eax */
|
|
|
|
|
|
{ 0x89, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
|
|
|
|
|
|
/* movl %eax, 0x4(%esp) */
|
|
|
|
|
|
{ 0xb8, -1 }, { 0x34, -1 }, { 0x01, -1 }, { 0x00, -1 }, { 0x00, -1 },
|
|
|
|
|
|
/* movl $0x134, %eax # setcontext */
|
|
|
|
|
|
{ 0xcd, -1 }, { 0x80, -1},
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ 0x89, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
|
|
|
|
|
|
/* movl %eax, 0x4(%esp) */
|
|
|
|
|
|
{ 0xb8, -1 }, { 0x01, -1 }, {0x00, -1 }, {0x00, -1 }, {0x00, -1 },
|
|
|
|
|
|
/* movl $0x1, %eax */
|
|
|
|
|
|
{ 0xcd, -1 }, { 0x80, -1},
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ TRAMP_SENTINEL_INSN, -1 }
|
|
|
|
|
|
},
|
|
|
|
|
|
i386nbsd_sigtramp_cache_init
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static const struct tramp_frame i386nbsd_sigtramp_si4 =
|
|
|
|
|
|
{
|
|
|
|
|
|
SIGTRAMP_FRAME,
|
|
|
|
|
|
1,
|
|
|
|
|
|
{
|
|
|
|
|
|
{ 0x8d, -1 }, { 0x84, -1 }, { 0x24, -1 },
|
|
|
|
|
|
{ 0x8c, -1 }, { 0x00, -1 }, { 0x00, -1 }, { 0x00, -1 },
|
|
|
|
|
|
/* leal 0x8c(%esp), %eax */
|
|
|
|
|
|
{ 0x89, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
|
|
|
|
|
|
/* movl %eax, 0x4(%esp) */
|
|
|
|
|
|
{ 0xb8, -1 }, { 0x34, -1 }, { 0x01, -1 }, { 0x00, -1 }, { 0x00, -1 },
|
|
|
|
|
|
/* movl $0x134, %eax # setcontext */
|
|
|
|
|
|
{ 0xcd, -1 }, { 0x80, -1},
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ 0xc7, -1 }, { 0x44, -1 }, { 0x24, -1 }, { 0x04, -1 },
|
|
|
|
|
|
{ 0xff, -1 }, { 0xff, -1 }, { 0xff, -1 }, { 0xff, -1 },
|
|
|
|
|
|
/* movl $0xffffffff,0x4(%esp) */
|
|
|
|
|
|
{ 0xb8, -1 }, { 0x01, -1 }, {0x00, -1 }, {0x00, -1 }, {0x00, -1 },
|
|
|
|
|
|
/* movl $0x1, %eax */
|
|
|
|
|
|
{ 0xcd, -1 }, { 0x80, -1},
|
|
|
|
|
|
/* int $0x80 */
|
|
|
|
|
|
{ TRAMP_SENTINEL_INSN, -1 }
|
|
|
|
|
|
},
|
|
|
|
|
|
i386nbsd_sigtramp_cache_init
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
i386nbsd_sigtramp_cache_init (const struct tramp_frame *self,
|
|
|
|
|
|
struct frame_info *next_frame,
|
|
|
|
|
|
struct trad_frame_cache *this_cache,
|
|
|
|
|
|
CORE_ADDR func)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct gdbarch *gdbarch = get_frame_arch (next_frame);
|
|
|
|
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
|
|
CORE_ADDR sp = frame_unwind_register_unsigned (next_frame, I386_ESP_REGNUM);
|
|
|
|
|
|
CORE_ADDR base;
|
|
|
|
|
|
int *reg_offset;
|
|
|
|
|
|
int num_regs;
|
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
|
|
if (self == &i386nbsd_sigtramp_sc16 || self == &i386nbsd_sigtramp_sc2)
|
|
|
|
|
|
{
|
|
|
|
|
|
reg_offset = i386nbsd_sc_reg_offset;
|
|
|
|
|
|
num_regs = ARRAY_SIZE (i386nbsd_sc_reg_offset);
|
|
|
|
|
|
|
|
|
|
|
|
/* Read in the sigcontext address */
|
|
|
|
|
|
base = read_memory_unsigned_integer (sp + 8, 4);
|
|
|
|
|
|
}
|
|
|
|
|
|
else
|
|
|
|
|
|
{
|
|
|
|
|
|
reg_offset = i386nbsd_mc_reg_offset;
|
|
|
|
|
|
num_regs = ARRAY_SIZE (i386nbsd_mc_reg_offset);
|
|
|
|
|
|
|
|
|
|
|
|
/* Read in the ucontext address */
|
|
|
|
|
|
base = read_memory_unsigned_integer (sp + 8, 4);
|
|
|
|
|
|
/* offsetof(ucontext_t, uc_mcontext) == 36 */
|
|
|
|
|
|
base += 36;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < num_regs; i++)
|
|
|
|
|
|
if (reg_offset[i] != -1)
|
|
|
|
|
|
trad_frame_set_reg_addr (this_cache, i, base + reg_offset[i]);
|
|
|
|
|
|
|
|
|
|
|
|
/* Construct the frame ID using the function start. */
|
|
|
|
|
|
trad_frame_set_id (this_cache, frame_id_build (sp, func));
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
2002-09-02 07:24:19 +08:00
|
|
|
|
static void
|
|
|
|
|
|
i386nbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
|
|
|
|
|
|
|
|
/* Obviously NetBSD is BSD-based. */
|
|
|
|
|
|
i386bsd_init_abi (info, gdbarch);
|
|
|
|
|
|
|
2003-11-27 21:28:50 +08:00
|
|
|
|
/* NetBSD has a different `struct reg'. */
|
|
|
|
|
|
tdep->gregset_reg_offset = i386nbsd_r_reg_offset;
|
|
|
|
|
|
tdep->gregset_num_regs = ARRAY_SIZE (i386nbsd_r_reg_offset);
|
|
|
|
|
|
tdep->sizeof_gregset = 16 * 4;
|
|
|
|
|
|
|
2002-09-02 07:24:19 +08:00
|
|
|
|
/* NetBSD uses -freg-struct-return by default. */
|
|
|
|
|
|
tdep->struct_return = reg_struct_return;
|
|
|
|
|
|
|
2007-12-30 01:01:41 +08:00
|
|
|
|
/* NetBSD uses tramp_frame sniffers for signal trampolines. */
|
|
|
|
|
|
tdep->sigcontext_addr= 0;
|
|
|
|
|
|
tdep->sigtramp_start = 0;
|
|
|
|
|
|
tdep->sigtramp_end = 0;
|
|
|
|
|
|
tdep->sigtramp_p = 0;
|
|
|
|
|
|
tdep->sc_reg_offset = 0;
|
|
|
|
|
|
tdep->sc_num_regs = 0;
|
|
|
|
|
|
|
|
|
|
|
|
tramp_frame_prepend_unwinder (gdbarch, &i386nbsd_sigtramp_sc16);
|
|
|
|
|
|
tramp_frame_prepend_unwinder (gdbarch, &i386nbsd_sigtramp_sc2);
|
|
|
|
|
|
tramp_frame_prepend_unwinder (gdbarch, &i386nbsd_sigtramp_si2);
|
|
|
|
|
|
tramp_frame_prepend_unwinder (gdbarch, &i386nbsd_sigtramp_si31);
|
|
|
|
|
|
tramp_frame_prepend_unwinder (gdbarch, &i386nbsd_sigtramp_si4);
|
2003-11-27 21:28:50 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
2002-09-02 07:24:19 +08:00
|
|
|
|
/* NetBSD ELF. */
|
2003-11-27 21:28:50 +08:00
|
|
|
|
|
2002-09-02 07:24:19 +08:00
|
|
|
|
static void
|
|
|
|
|
|
i386nbsdelf_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
|
|
|
|
|
|
|
|
/* It's still NetBSD. */
|
|
|
|
|
|
i386nbsd_init_abi (info, gdbarch);
|
|
|
|
|
|
|
|
|
|
|
|
/* But ELF-based. */
|
|
|
|
|
|
i386_elf_init_abi (info, gdbarch);
|
|
|
|
|
|
|
|
|
|
|
|
/* NetBSD ELF uses SVR4-style shared libraries. */
|
2003-11-27 21:28:50 +08:00
|
|
|
|
set_solib_svr4_fetch_link_map_offsets
|
* amd64fbsd-tdep.c: Include "solib-svr4.h".
(amd64fbsd_init_abi): Set link map offsets.
* amd64nbsd-tdep.c: Include "slib-svr4.h".
(amd64nbsd_init_abi): Set link map offsets.
* amd64obsd-tdep.c: Include "solib-svr4.h".
(amd64obsd_init_abi): Set link map offsets.
* i386fbsd-tdep.c: Include "solib-svr4.h".
(i386fbsd_init_abi): Set link map offsets.
* i386nbsd-tdep.c: Include "solib-svr4.h".
(i386nbsdelf_init_abi): Set link map offsets.
* Makefile.in (amd64fbsd-tdep.o, amd64nbsd-tdep.o)
(amd64obsd-tdep.o, i386fbsd-tdep.o): Update dependencies.
* config/i386/fbsd.mh (NATDEPFILES): Remove solib.o, solib-svr4.o,
solib-legacy.o and core-aout.o. Reformat.
* config/i386/fbsd64.mh (NATDEPFILES): Remove solib.o,
solib-svr4.o, solib-legacy.o. Reformat.
* config/i386/nbsdaout.mh (NATDEPFILES): Add solib.o. Reformat.
* config/i386/nbsdelf.mh: Reformat.
* config/i386/nbsd64.mh (NATDEPFILES): Remove solib.o,
solib-svr4.o, solib-legacy.o and corelow.o.
* config/i386/obsd.mh, config/i386/obsdaout.mh: Reformat.
* config/i386/obsd64.mh (NATDEPFILES): Remove solib.o,
solib-svr4.o, solib-legacy.o and corelow.o. Reformat.
* config/i386/fbsd.mt (TDEPFILES): Add solib.o, solib-svr4.o.
* config/i386/fbsd64.mt (TDEPFILES): Add solib.o, solib-svr4.o.
(TM_FILE): Set to tm-fbsd.h.
* config/i386/nbsd.mt (TDEPFILES): Reformat.
* config/i386/nbsd64.mt (TDEPFILES): Add corelow.o, solib.o and
solib-svr4.o.
* config/i386/obsd.mt (TDEPFILES): Add corelow.o, solib.o and
solib-svr4.o.
(TM_FILE): Set to nm-nbsd.h.
* config/i386/nm-fbsd.h: Update copyright year. Tweak comments.
Simplify shared library support. Don't include "elf/common.h".
(SVR4_SHARED_LIBS): Don't define.
* config/i386/nm-fbsd64.h: Update copyright year. Don't include
"solib.h".
* config/i386/nm-nbsd.h, config/i386/nm-nbsdaout.h,
config/i386/nm-obsd.h: Update copyright year. Tweak comments.
* config/i386/tm-fbsd.h: Update copyright tear. Tweak comments.
Don't include "i386/tm-i386.h". Include "solib.h".
* config/i386/tm-nbsd.h: Update copyright year. Tweak comments.
Don't include "i386/tm-i386.h".
* config/i386/xm-i386.h: Update copyright year. Tweak comments.
* config/i386/xm-nbsd.h: Update copyright year. Tweak comments.
Include "i386/xm-i386.h".
(HOST_LONG_DOUBLE_FORMAT): Remove.
2004-02-23 00:20:22 +08:00
|
|
|
|
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
|
2002-09-02 07:24:19 +08:00
|
|
|
|
|
|
|
|
|
|
/* NetBSD ELF uses -fpcc-struct-return by default. */
|
|
|
|
|
|
tdep->struct_return = pcc_struct_return;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2002-05-12 05:22:51 +08:00
|
|
|
|
void
|
|
|
|
|
|
_initialize_i386nbsd_tdep (void)
|
|
|
|
|
|
{
|
2002-12-22 03:58:07 +08:00
|
|
|
|
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_NETBSD_ELF,
|
2002-09-02 07:24:19 +08:00
|
|
|
|
i386nbsdelf_init_abi);
|
2002-05-12 05:22:51 +08:00
|
|
|
|
}
|
