1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/* Target-dependent code for Solaris x86.
Copyright (C) 2002-2022 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "value.h"
#include "osabi.h"
#include "sol2-tdep.h"
#include "i386-tdep.h"
#include "solib-svr4.h"
/* From <ia32/sys/reg.h>. */
static int i386_sol2_gregset_reg_offset[] =
{
11 * 4, /* %eax */
10 * 4, /* %ecx */
9 * 4, /* %edx */
8 * 4, /* %ebx */
17 * 4, /* %esp */
6 * 4, /* %ebp */
5 * 4, /* %esi */
4 * 4, /* %edi */
14 * 4, /* %eip */
16 * 4, /* %eflags */
15 * 4, /* %cs */
18 * 4, /* %ss */
3 * 4, /* %ds */
2 * 4, /* %es */
1 * 4, /* %fs */
0 * 4 /* %gs */
};
/* Solaris doesn't have a `struct sigcontext', but it does have a
`mcontext_t' that contains the saved set of machine registers. */
static CORE_ADDR
i386_sol2_mcontext_addr (struct frame_info *this_frame)
{
CORE_ADDR sp, ucontext_addr;
sp = get_frame_register_unsigned (this_frame, I386_ESP_REGNUM);
ucontext_addr = get_frame_memory_unsigned (this_frame, sp + 8, 4);
return ucontext_addr + 36;
}
/* Solaris 2. */
static void
i386_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
i386_gdbarch_tdep *tdep = (i386_gdbarch_tdep *) gdbarch_tdep (gdbarch);
/* Solaris is SVR4-based. */
i386_svr4_init_abi (info, gdbarch);
sol2_init_abi (info, gdbarch);
/* Solaris reserves space for its FPU emulator in `fpregset_t'.
There is also some space reserved for the registers of a Weitek
math coprocessor. */
tdep->gregset_reg_offset = i386_sol2_gregset_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (i386_sol2_gregset_reg_offset);
tdep->sizeof_gregset = 19 * 4;
tdep->sizeof_fpregset = 380;
/* Signal trampolines are slightly different from SVR4. */
tdep->sigtramp_p = sol2_sigtramp_p;
tdep->sigcontext_addr = i386_sol2_mcontext_addr;
tdep->sc_reg_offset = tdep->gregset_reg_offset;
tdep->sc_num_regs = tdep->gregset_num_regs;
/* Solaris has SVR4-style shared libraries. */
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
static enum gdb_osabi
i386_sol2_osabi_sniffer (bfd *abfd)
{
/* If we have a section named .SUNW_version, then it is almost
certainly Solaris 2. */
if (bfd_get_section_by_name (abfd, ".SUNW_version"))
return GDB_OSABI_SOLARIS;
return GDB_OSABI_UNKNOWN;
}
void _initialize_i386_sol2_tdep ();
void
_initialize_i386_sol2_tdep ()
{
/* Register an ELF OS ABI sniffer for Solaris 2 binaries. */
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
i386_sol2_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_SOLARIS,
i386_sol2_init_abi);
}
|
GitWeb