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/tmp/gdb-8.1/gdb/i386-gnu-tdep.c
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1 /* Target-dependent code for the GNU Hurd.
2 Copyright (C) 2002-2018 Free Software Foundation, Inc.
3
4 This file is part of GDB.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18
19 #include "defs.h"
20 #include "osabi.h"
21 #include "solib-svr4.h"
22
23 #include "i386-tdep.h"
24
25 /* From <sys/ucontext.h>. */
26 static int i386gnu_gregset_reg_offset[] =
27 {
28 11 * 4, /* %eax */
29 10 * 4, /* %ecx */
30 9 * 4, /* %edx */
31 8 * 4, /* %ebx */
32 17 * 4, /* %uesp */
33 6 * 4, /* %ebp */
34 5 * 4, /* %esi */
35 4 * 4, /* %edi */
36 14 * 4, /* %eip */
37 16 * 4, /* %efl */
38 15 * 4, /* %cs */
39 18 * 4, /* %ss */
40 3 * 4, /* %ds */
41 2 * 4, /* %es */
42 1 * 4, /* %fs */
43 0 * 4, /* %gs */
44 };
45
46 static void
47 i386gnu_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
48 {
49 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
50
51 /* GNU uses ELF. */
52 i386_elf_init_abi (info, gdbarch);
53
54 set_solib_svr4_fetch_link_map_offsets
55 (gdbarch, svr4_ilp32_fetch_link_map_offsets);
56
57 tdep->gregset_reg_offset = i386gnu_gregset_reg_offset;
58 tdep->gregset_num_regs = ARRAY_SIZE (i386gnu_gregset_reg_offset);
59 tdep->sizeof_gregset = 19 * 4;
60
61 tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */
62 }
63
64 void
65 _initialize_i386gnu_tdep (void)
66 {
67 gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_HURD, i386gnu_init_abi);
68 }
gdbarch
Definition: gdbarch.c:127
gdbarch_tdep::jb_pc_offset
int jb_pc_offset
Definition: i386-tdep.h:210
gdbarch_tdep
Definition: aarch64-tdep.h:55
svr4_ilp32_fetch_link_map_offsets
struct link_map_offsets * svr4_ilp32_fetch_link_map_offsets(void)
Definition: solib-svr4.c:3183
GDB_OSABI_HURD
Definition: defs.h:515
defs.h
gdbarch_tdep
struct gdbarch_tdep * gdbarch_tdep(struct gdbarch *gdbarch)
Definition: gdbarch.c:1491
i386gnu_gregset_reg_offset
static int i386gnu_gregset_reg_offset[]
Definition: i386-gnu-tdep.c:26
solib-svr4.h
osabi.h
set_solib_svr4_fetch_link_map_offsets
void set_solib_svr4_fetch_link_map_offsets(struct gdbarch *gdbarch, struct link_map_offsets *(*flmo)(void))
Definition: solib-svr4.c:3137
gdbarch_register_osabi
void gdbarch_register_osabi(enum bfd_architecture arch, unsigned long machine, enum gdb_osabi osabi, void(*init_osabi)(struct gdbarch_info, struct gdbarch *))
Definition: osabi.c:143
gdbarch_tdep::gregset_reg_offset
int * gregset_reg_offset
Definition: i386-tdep.h:61
i386gnu_init_abi
static void i386gnu_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
Definition: i386-gnu-tdep.c:47
i386_elf_init_abi
void i386_elf_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
Definition: i386-tdep.c:4439
gdbarch_tdep::sizeof_gregset
size_t sizeof_gregset
Definition: i386-tdep.h:63
gdbarch_info
Definition: gdbarch.h:1626
i386-tdep.h
gdbarch_tdep::gregset_num_regs
int gregset_num_regs
Definition: i386-tdep.h:62
_initialize_i386gnu_tdep
void _initialize_i386gnu_tdep(void)
Definition: i386-gnu-tdep.c:65