mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-25 02:53:48 +08:00
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/* Darwin support for GDB, the GNU debugger.
|
|
Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2005, 2008, 2009, 2010
|
|
Free Software Foundation, Inc.
|
|
|
|
Contributed by Apple Computer, 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 "frame.h"
|
|
#include "inferior.h"
|
|
#include "gdbcore.h"
|
|
#include "target.h"
|
|
#include "floatformat.h"
|
|
#include "symtab.h"
|
|
#include "regcache.h"
|
|
#include "libbfd.h"
|
|
#include "objfiles.h"
|
|
|
|
#include "i387-tdep.h"
|
|
#include "amd64-tdep.h"
|
|
#include "osabi.h"
|
|
#include "ui-out.h"
|
|
#include "symtab.h"
|
|
#include "frame.h"
|
|
#include "gdb_assert.h"
|
|
#include "amd64-darwin-tdep.h"
|
|
#include "i386-darwin-tdep.h"
|
|
#include "solib.h"
|
|
#include "solib-darwin.h"
|
|
#include "dwarf2-frame.h"
|
|
|
|
/* Offsets into the struct x86_thread_state64 where we'll find the saved regs.
|
|
From <mach/i386/thread_status.h> and amd64-tdep.h. */
|
|
int amd64_darwin_thread_state_reg_offset[] =
|
|
{
|
|
0 * 8, /* %rax */
|
|
1 * 8, /* %rbx */
|
|
2 * 8, /* %rcx */
|
|
3 * 8, /* %rdx */
|
|
5 * 8, /* %rsi */
|
|
4 * 8, /* %rdi */
|
|
6 * 8, /* %rbp */
|
|
7 * 8, /* %rsp */
|
|
8 * 8, /* %r8 ... */
|
|
9 * 8,
|
|
10 * 8,
|
|
11 * 8,
|
|
12 * 8,
|
|
13 * 8,
|
|
14 * 8,
|
|
15 * 8, /* ... %r15 */
|
|
16 * 8, /* %rip */
|
|
17 * 8, /* %rflags */
|
|
18 * 8, /* %cs */
|
|
-1, /* %ss */
|
|
-1, /* %ds */
|
|
-1, /* %es */
|
|
19 * 8, /* %fs */
|
|
20 * 8 /* %gs */
|
|
};
|
|
|
|
const int amd64_darwin_thread_state_num_regs =
|
|
ARRAY_SIZE (amd64_darwin_thread_state_reg_offset);
|
|
|
|
/* Assuming THIS_FRAME is a Darwin sigtramp routine, return the
|
|
address of the associated sigcontext structure. */
|
|
|
|
static CORE_ADDR
|
|
amd64_darwin_sigcontext_addr (struct frame_info *this_frame)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (this_frame);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
CORE_ADDR rbx;
|
|
CORE_ADDR si;
|
|
gdb_byte buf[8];
|
|
|
|
/* A pointer to the ucontext is passed as the fourth argument
|
|
to the signal handler, which is saved in rbx. */
|
|
get_frame_register (this_frame, AMD64_RBX_REGNUM, buf);
|
|
rbx = extract_unsigned_integer (buf, 8, byte_order);
|
|
|
|
/* The pointer to mcontext is at offset 48. */
|
|
read_memory (rbx + 48, buf, 8);
|
|
|
|
/* First register (rax) is at offset 16. */
|
|
return extract_unsigned_integer (buf, 8, byte_order) + 16;
|
|
}
|
|
|
|
static void
|
|
x86_darwin_init_abi_64 (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
|
|
|
|
amd64_init_abi (info, gdbarch);
|
|
|
|
tdep->struct_return = reg_struct_return;
|
|
|
|
dwarf2_frame_set_signal_frame_p (gdbarch, darwin_dwarf_signal_frame_p);
|
|
|
|
tdep->sigtramp_p = i386_sigtramp_p;
|
|
tdep->sigcontext_addr = amd64_darwin_sigcontext_addr;
|
|
tdep->sc_reg_offset = amd64_darwin_thread_state_reg_offset;
|
|
tdep->sc_num_regs = amd64_darwin_thread_state_num_regs;
|
|
|
|
tdep->jb_pc_offset = 148;
|
|
|
|
set_solib_ops (gdbarch, &darwin_so_ops);
|
|
}
|
|
|
|
void
|
|
_initialize_amd64_darwin_tdep (void)
|
|
{
|
|
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
|
|
GDB_OSABI_DARWIN, x86_darwin_init_abi_64);
|
|
}
|