1 /* Darwin support for GDB, the GNU debugger.
2 Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2005, 2008
3 Free Software Foundation, Inc.
5 Contributed by Apple Computer, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
27 #include "floatformat.h"
33 #include "i387-tdep.h"
34 #include "i386-tdep.h"
35 #include "amd64-tdep.h"
40 #include "gdb_assert.h"
41 #include "i386-darwin-tdep.h"
43 /* Offsets into the struct i386_thread_state where we'll find the saved regs.
44 From <mach/i386/thread_status.h> and i386-tdep.h. */
45 int i386_darwin_thread_state_reg_offset
[] =
65 const int i386_darwin_thread_state_num_regs
=
66 ARRAY_SIZE (i386_darwin_thread_state_reg_offset
);
68 /* Offsets into the struct x86_thread_state64 where we'll find the saved regs.
69 From <mach/i386/thread_status.h> and amd64-tdep.h. */
70 int amd64_darwin_thread_state_reg_offset
[] =
87 15 * 8, /* ... %r15 */
98 const int amd64_darwin_thread_state_num_regs
=
99 ARRAY_SIZE (amd64_darwin_thread_state_reg_offset
);
102 i386_darwin_init_abi (struct gdbarch_info info
, struct gdbarch
*gdbarch
)
104 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
106 /* We support the SSE registers. */
107 tdep
->num_xmm_regs
= I386_NUM_XREGS
- 1;
108 set_gdbarch_num_regs (gdbarch
, I386_SSE_NUM_REGS
);
110 tdep
->struct_return
= reg_struct_return
;
112 tdep
->sigcontext_addr
= NULL
;
113 tdep
->sc_reg_offset
= i386_darwin_thread_state_reg_offset
;
114 tdep
->sc_num_regs
= 16;
116 tdep
->jb_pc_offset
= 20;
120 x86_darwin_init_abi_64 (struct gdbarch_info info
, struct gdbarch
*gdbarch
)
122 struct gdbarch_tdep
*tdep
= gdbarch_tdep (gdbarch
);
124 amd64_init_abi (info
, gdbarch
);
126 tdep
->struct_return
= reg_struct_return
;
128 /* We don't do signals yet. */
129 tdep
->sigcontext_addr
= NULL
;
130 tdep
->sc_reg_offset
= amd64_darwin_thread_state_reg_offset
;
131 tdep
->sc_num_regs
= ARRAY_SIZE (amd64_darwin_thread_state_reg_offset
);
133 tdep
->jb_pc_offset
= 148;
136 static enum gdb_osabi
137 i386_mach_o_osabi_sniffer (bfd
*abfd
)
139 if (!bfd_check_format (abfd
, bfd_object
))
140 return GDB_OSABI_UNKNOWN
;
142 if (bfd_get_arch (abfd
) == bfd_arch_i386
)
143 return GDB_OSABI_DARWIN
;
145 return GDB_OSABI_UNKNOWN
;
149 _initialize_i386_darwin_tdep (void)
151 gdbarch_register_osabi_sniffer (bfd_arch_unknown
, bfd_target_mach_o_flavour
,
152 i386_mach_o_osabi_sniffer
);
154 gdbarch_register_osabi (bfd_arch_i386
, bfd_mach_i386_i386
,
155 GDB_OSABI_DARWIN
, i386_darwin_init_abi
);
157 gdbarch_register_osabi (bfd_arch_i386
, bfd_mach_x86_64
,
158 GDB_OSABI_DARWIN
, x86_darwin_init_abi_64
);