1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/* Darwin support for GDB, the GNU debugger.
|
|
Copyright (C) 1997-2024 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 "symtab.h"
|
|
#include "regcache.h"
|
|
#include "objfiles.h"
|
|
|
|
#include "i387-tdep.h"
|
|
#include "gdbsupport/x86-xstate.h"
|
|
#include "amd64-tdep.h"
|
|
#include "osabi.h"
|
|
#include "ui-out.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 (frame_info_ptr this_frame)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (this_frame);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
CORE_ADDR rbx;
|
|
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)
|
|
{
|
|
i386_gdbarch_tdep *tdep = gdbarch_tdep<i386_gdbarch_tdep> (gdbarch);
|
|
|
|
amd64_init_abi (info, gdbarch,
|
|
amd64_target_description (X86_XSTATE_SSE_MASK, true));
|
|
|
|
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 = 56;
|
|
|
|
set_gdbarch_so_ops (gdbarch, &darwin_so_ops);
|
|
}
|
|
|
|
void _initialize_amd64_darwin_tdep ();
|
|
void
|
|
_initialize_amd64_darwin_tdep ()
|
|
{
|
|
gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
|
|
GDB_OSABI_DARWIN, x86_darwin_init_abi_64);
|
|
}
|