binutils-gdb/gdb/amd64fbsd-tdep.c

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/* Target-dependent code for FreeBSD/amd64.
Copyright 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "arch-utils.h"
#include "frame.h"
#include "gdbcore.h"
#include "regcache.h"
#include "osabi.h"
#include "gdb_assert.h"
#include "gdb_string.h"
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#include "amd64-tdep.h"
#include "bsd-uthread.h"
* 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.
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#include "solib-svr4.h"
/* Support for signal handlers. */
/* Assuming NEXT_FRAME is for a frame following a BSD sigtramp
routine, return the address of the associated sigcontext structure. */
static CORE_ADDR
amd64fbsd_sigcontext_addr (struct frame_info *next_frame)
{
CORE_ADDR sp;
/* The `struct sigcontext' (which really is an `ucontext_t' on
FreeBSD/amd64) lives at a fixed offset in the signal frame. See
<machine/sigframe.h>. */
* x86-64-tdep.h: Tewak comment. (enum amd64_regnum): New. (X86_64_RAX_REGNUM, X86_64_RDX_REGNUM, X86_64_RDI_REGNUM) (X86_64_RBP_REGNUM, X86_64_RSP_REGNUM, X86_64_RIP_REGNUM) (X86_64_EFLAGS_REGNUM, X86_64_ST0_REGNUM, X86_64_XMM0_REGNUM) (X86_64_XMM1_REGNUM): Removed. (AMD64_NUM_GREGS): Renamed from X86_64_NUM_GREGS. (amd64_init_abi, amd64_supply_fxsave, amd64_fill_fxsave): Adjust prototypes for renamed functions. * x86-64-tdep.c: Fix typo. (amd64_dwarf_regmap): Use constants from `enum amd64_regnum' for register numbers. (amd64_return_value, amd64_push_arguments, amd64_push_dummy_call): Use constants from `enum amd64_regnum' for register numbers. (AMD64_NUM_SAVED_REGS): Adjust for renamed macros. (amd64_analyze_prologue, amd64_frame_cache, amd64_sigtramp_frame_cache): Use constants from `enum amd64_regnum' for register numbers. (amd64_supply_fpregset): Adjust for renamed functions. (amd64_init_abi): Rename from x86_64_init_abi. Use constants from `enum amd64_regnum' for register numbers. (I387_ST0_REGNUM): Use constant from `enum amd64_regnum'. (amd64_supply_fxsave): Rename from x86_64_supply_fxsave. (amd64_fill_fxsave): Rename fro x86_64_fill_fxsave. * x86-64-linux-tdep.c (amd64_linux_supply_gregset) (amd64_linux_fill_gregset): Adjust for renamed macros. (fetch_core_registers): Adjust for renamed functions. (amd64_linux_init_abi): Adjust for renamed functions. * x86-64-linux-nat.c (supply_gregset, fill_gregset): Adjust for renamed functions. * amd64-nat.c: Adjust for renamed macros. * amd64bsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Use constants from `enum amd64_regnum' for register numbers. Adjust for renamed variables. * amd64fbsd-nat.c (supply_gregset, fill_gregset): Adjust for renamed variables. (_initialize_amd64fbsd_nat): Use constants from `enum amd64_regnum' for register numbers. * amd64fbsd-tdep.c (amd64fbsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64fbsd_init_abi): Adjust for renamed functions. * amd64nbsd-tdep.c (amd64nbsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64nbsd_init_abi): Adjust for renamed functions. (_initialize_amd64nbsd_ndep): Adjust for renamed macros. * amd64obsd-tdep.c (amd64obsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64obsd_init_abi): Adjust for renamed functions. (_initialize_amd64obsd_ndep): Adjust for renamed macros.
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sp = frame_unwind_register_unsigned (next_frame, AMD64_RSP_REGNUM);
return sp + 16;
}
/* FreeBSD 5.1-RELEASE or later. */
/* Mapping between the general-purpose registers in `struct reg'
format and GDB's register cache layout.
Note that some registers are 32-bit, but since we're little-endian
we get away with that. */
/* From <machine/reg.h>. */
static int amd64fbsd_r_reg_offset[] =
{
14 * 8, /* %rax */
11 * 8, /* %rbx */
13 * 8, /* %rcx */
12 * 8, /* %rdx */
9 * 8, /* %rsi */
8 * 8, /* %rdi */
10 * 8, /* %rbp */
20 * 8, /* %rsp */
7 * 8, /* %r8 ... */
6 * 8,
5 * 8,
4 * 8,
3 * 8,
2 * 8,
1 * 8,
0 * 8, /* ... %r15 */
17 * 8, /* %rip */
19 * 8, /* %eflags */
18 * 8, /* %cs */
21 * 8, /* %ss */
-1, /* %ds */
-1, /* %es */
-1, /* %fs */
-1 /* %gs */
};
/* Location of the signal trampoline. */
CORE_ADDR amd64fbsd_sigtramp_start_addr = 0x7fffffffffc0;
CORE_ADDR amd64fbsd_sigtramp_end_addr = 0x7fffffffffe0;
/* From <machine/signal.h>. */
int amd64fbsd_sc_reg_offset[] =
{
24 + 6 * 8, /* %rax */
24 + 7 * 8, /* %rbx */
24 + 3 * 8, /* %rcx */
24 + 2 * 8, /* %rdx */
24 + 1 * 8, /* %rsi */
24 + 0 * 8, /* %rdi */
24 + 8 * 8, /* %rbp */
24 + 22 * 8, /* %rsp */
24 + 4 * 8, /* %r8 ... */
24 + 5 * 8,
24 + 9 * 8,
24 + 10 * 8,
24 + 11 * 8,
24 + 12 * 8,
24 + 13 * 8,
24 + 14 * 8, /* ... %r15 */
24 + 19 * 8, /* %rip */
24 + 21 * 8, /* %eflags */
24 + 20 * 8, /* %cs */
24 + 23 * 8, /* %ss */
-1, /* %ds */
-1, /* %es */
-1, /* %fs */
-1 /* %gs */
};
/* From /usr/src/lib/libc/amd64/gen/_setjmp.S. */
static int amd64fbsd_jmp_buf_reg_offset[] =
{
-1, /* %rax */
1 * 8, /* %rbx */
-1, /* %rcx */
-1, /* %rdx */
-1, /* %rsi */
-1, /* %rdi */
3 * 8, /* %rbp */
2 * 8, /* %rsp */
-1, /* %r8 ... */
-1,
-1,
-1, /* ... %r11 */
4 * 8, /* %r12 ... */
5 * 8,
6 * 8,
7 * 8, /* ... %r15 */
0 * 8 /* %rip */
};
static void
amd64fbsd_supply_uthread (struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
char buf[8];
int i;
gdb_assert (regnum >= -1);
for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++)
{
if (amd64fbsd_jmp_buf_reg_offset[i] != -1
&& (regnum == -1 || regnum == i))
{
read_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8);
regcache_raw_supply (regcache, i, buf);
}
}
}
static void
amd64fbsd_collect_uthread (const struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
char buf[8];
int i;
gdb_assert (regnum >= -1);
for (i = 0; i < ARRAY_SIZE (amd64fbsd_jmp_buf_reg_offset); i++)
{
if (amd64fbsd_jmp_buf_reg_offset[i] != -1
&& (regnum == -1 || regnum == i))
{
regcache_raw_collect (regcache, i, buf);
write_memory (addr + amd64fbsd_jmp_buf_reg_offset[i], buf, 8);
}
}
}
void
amd64fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* Obviously FreeBSD is BSD-based. */
i386bsd_init_abi (info, gdbarch);
tdep->gregset_reg_offset = amd64fbsd_r_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (amd64fbsd_r_reg_offset);
tdep->sizeof_gregset = 22 * 8;
* x86-64-tdep.h: Tewak comment. (enum amd64_regnum): New. (X86_64_RAX_REGNUM, X86_64_RDX_REGNUM, X86_64_RDI_REGNUM) (X86_64_RBP_REGNUM, X86_64_RSP_REGNUM, X86_64_RIP_REGNUM) (X86_64_EFLAGS_REGNUM, X86_64_ST0_REGNUM, X86_64_XMM0_REGNUM) (X86_64_XMM1_REGNUM): Removed. (AMD64_NUM_GREGS): Renamed from X86_64_NUM_GREGS. (amd64_init_abi, amd64_supply_fxsave, amd64_fill_fxsave): Adjust prototypes for renamed functions. * x86-64-tdep.c: Fix typo. (amd64_dwarf_regmap): Use constants from `enum amd64_regnum' for register numbers. (amd64_return_value, amd64_push_arguments, amd64_push_dummy_call): Use constants from `enum amd64_regnum' for register numbers. (AMD64_NUM_SAVED_REGS): Adjust for renamed macros. (amd64_analyze_prologue, amd64_frame_cache, amd64_sigtramp_frame_cache): Use constants from `enum amd64_regnum' for register numbers. (amd64_supply_fpregset): Adjust for renamed functions. (amd64_init_abi): Rename from x86_64_init_abi. Use constants from `enum amd64_regnum' for register numbers. (I387_ST0_REGNUM): Use constant from `enum amd64_regnum'. (amd64_supply_fxsave): Rename from x86_64_supply_fxsave. (amd64_fill_fxsave): Rename fro x86_64_fill_fxsave. * x86-64-linux-tdep.c (amd64_linux_supply_gregset) (amd64_linux_fill_gregset): Adjust for renamed macros. (fetch_core_registers): Adjust for renamed functions. (amd64_linux_init_abi): Adjust for renamed functions. * x86-64-linux-nat.c (supply_gregset, fill_gregset): Adjust for renamed functions. * amd64-nat.c: Adjust for renamed macros. * amd64bsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Use constants from `enum amd64_regnum' for register numbers. Adjust for renamed variables. * amd64fbsd-nat.c (supply_gregset, fill_gregset): Adjust for renamed variables. (_initialize_amd64fbsd_nat): Use constants from `enum amd64_regnum' for register numbers. * amd64fbsd-tdep.c (amd64fbsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64fbsd_init_abi): Adjust for renamed functions. * amd64nbsd-tdep.c (amd64nbsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64nbsd_init_abi): Adjust for renamed functions. (_initialize_amd64nbsd_ndep): Adjust for renamed macros. * amd64obsd-tdep.c (amd64obsd_sigcontext_addr): Use constants from `enum amd64_regnum' for register numbers. (amd64obsd_init_abi): Adjust for renamed functions. (_initialize_amd64obsd_ndep): Adjust for renamed macros.
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amd64_init_abi (info, gdbarch);
tdep->sigtramp_start = amd64fbsd_sigtramp_start_addr;
tdep->sigtramp_end = amd64fbsd_sigtramp_end_addr;
tdep->sigcontext_addr = amd64fbsd_sigcontext_addr;
tdep->sc_reg_offset = amd64fbsd_sc_reg_offset;
tdep->sc_num_regs = ARRAY_SIZE (amd64fbsd_sc_reg_offset);
* 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.
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/* FreeBSD provides a user-level threads implementation. */
bsd_uthread_set_supply_uthread (gdbarch, amd64fbsd_supply_uthread);
bsd_uthread_set_collect_uthread (gdbarch, amd64fbsd_collect_uthread);
* 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.
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/* FreeBSD uses SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_lp64_fetch_link_map_offsets);
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_amd64fbsd_tdep (void);
void
_initialize_amd64fbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
GDB_OSABI_FREEBSD_ELF, amd64fbsd_init_abi);
}