mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-04-24 14:53:34 +08:00
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.
229 lines
6.5 KiB
C
229 lines
6.5 KiB
C
/* Target-dependent code for Windows (including Cygwin) running on i386's,
|
|
for GDB.
|
|
|
|
Copyright (C) 2003-2024 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 "osabi.h"
|
|
#include "i386-tdep.h"
|
|
#include "windows-tdep.h"
|
|
#include "regset.h"
|
|
#include "gdbsupport/gdb_obstack.h"
|
|
#include "xml-support.h"
|
|
#include "gdbcore.h"
|
|
#include "inferior.h"
|
|
|
|
/* Core file support. */
|
|
|
|
/* This vector maps GDB's idea of a register's number into an address
|
|
in the windows exception context vector. */
|
|
|
|
static int i386_windows_gregset_reg_offset[] =
|
|
{
|
|
176, /* eax */
|
|
172, /* ecx */
|
|
168, /* edx */
|
|
164, /* ebx */
|
|
|
|
196, /* esp */
|
|
180, /* ebp */
|
|
160, /* esi */
|
|
156, /* edi */
|
|
|
|
184, /* eip */
|
|
192, /* eflags */
|
|
188, /* cs */
|
|
200, /* ss */
|
|
|
|
152, /* ds */
|
|
148, /* es */
|
|
144, /* fs */
|
|
140, /* gs */
|
|
|
|
56, /* FloatSave.RegisterArea[0 * 10] */
|
|
66, /* FloatSave.RegisterArea[1 * 10] */
|
|
76, /* FloatSave.RegisterArea[2 * 10] */
|
|
86, /* FloatSave.RegisterArea[3 * 10] */
|
|
96, /* FloatSave.RegisterArea[4 * 10] */
|
|
106, /* FloatSave.RegisterArea[5 * 10] */
|
|
116, /* FloatSave.RegisterArea[6 * 10] */
|
|
126, /* FloatSave.RegisterArea[7 * 10] */
|
|
|
|
28, /* FloatSave.ControlWord */
|
|
32, /* FloatSave.StatusWord */
|
|
36, /* FloatSave.TagWord */
|
|
44, /* FloatSave.ErrorSelector */
|
|
40, /* FloatSave.ErrorOffset */
|
|
52, /* FloatSave.DataSelector */
|
|
48, /* FloatSave.DataOffset */
|
|
44, /* FloatSave.ErrorSelector */
|
|
|
|
/* XMM0-7 */
|
|
364, /* ExtendedRegisters[10*16] */
|
|
380, /* ExtendedRegisters[11*16] */
|
|
396, /* ExtendedRegisters[12*16] */
|
|
412, /* ExtendedRegisters[13*16] */
|
|
428, /* ExtendedRegisters[14*16] */
|
|
444, /* ExtendedRegisters[15*16] */
|
|
460, /* ExtendedRegisters[16*16] */
|
|
476, /* ExtendedRegisters[17*16] */
|
|
|
|
/* MXCSR */
|
|
228 /* ExtendedRegisters[24] */
|
|
};
|
|
|
|
#define I386_WINDOWS_SIZEOF_GREGSET 716
|
|
|
|
static CORE_ADDR
|
|
i386_windows_skip_trampoline_code (frame_info_ptr frame, CORE_ADDR pc)
|
|
{
|
|
return i386_pe_skip_trampoline_code (frame, pc, NULL);
|
|
}
|
|
|
|
static const char *
|
|
i386_windows_auto_wide_charset (void)
|
|
{
|
|
return "UTF-16";
|
|
}
|
|
|
|
/* Implement the "push_dummy_call" gdbarch method. */
|
|
|
|
static CORE_ADDR
|
|
i386_windows_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
|
|
struct regcache *regcache, CORE_ADDR bp_addr,
|
|
int nargs, struct value **args, CORE_ADDR sp,
|
|
function_call_return_method return_method,
|
|
CORE_ADDR struct_addr)
|
|
{
|
|
/* For non-static member functions of 32bit Windows programs, the thiscall
|
|
calling convention is used, so the 'this' pointer is passed in ECX. */
|
|
bool thiscall = false;
|
|
|
|
struct type *type = check_typedef (function->type ());
|
|
if (type->code () == TYPE_CODE_PTR)
|
|
type = check_typedef (type->target_type ());
|
|
|
|
/* read_subroutine_type sets for non-static member functions the
|
|
artificial flag of the first parameter ('this' pointer). */
|
|
if (type->code () == TYPE_CODE_METHOD
|
|
&& type->num_fields () > 0
|
|
&& type->field (0).is_artificial ()
|
|
&& type->field (0).type ()->code () == TYPE_CODE_PTR)
|
|
thiscall = 1;
|
|
|
|
return i386_thiscall_push_dummy_call (gdbarch, function, regcache, bp_addr,
|
|
nargs, args, sp, return_method,
|
|
struct_addr, thiscall);
|
|
}
|
|
|
|
/* Common parts for gdbarch initialization for Windows and Cygwin on i386. */
|
|
|
|
static void
|
|
i386_windows_init_abi_common (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
i386_gdbarch_tdep *tdep = gdbarch_tdep<i386_gdbarch_tdep> (gdbarch);
|
|
|
|
set_gdbarch_skip_trampoline_code (gdbarch, i386_windows_skip_trampoline_code);
|
|
|
|
set_gdbarch_skip_main_prologue (gdbarch, i386_skip_main_prologue);
|
|
|
|
tdep->struct_return = reg_struct_return;
|
|
|
|
tdep->gregset_reg_offset = i386_windows_gregset_reg_offset;
|
|
tdep->gregset_num_regs = ARRAY_SIZE (i386_windows_gregset_reg_offset);
|
|
tdep->sizeof_gregset = I386_WINDOWS_SIZEOF_GREGSET;
|
|
|
|
tdep->sizeof_fpregset = 0;
|
|
|
|
/* Core file support. */
|
|
set_gdbarch_core_xfer_shared_libraries
|
|
(gdbarch, windows_core_xfer_shared_libraries);
|
|
set_gdbarch_core_pid_to_str (gdbarch, windows_core_pid_to_str);
|
|
|
|
set_gdbarch_auto_wide_charset (gdbarch, i386_windows_auto_wide_charset);
|
|
}
|
|
|
|
/* gdbarch initialization for Windows on i386. */
|
|
|
|
static void
|
|
i386_windows_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
i386_windows_init_abi_common (info, gdbarch);
|
|
windows_init_abi (info, gdbarch);
|
|
|
|
set_gdbarch_push_dummy_call (gdbarch, i386_windows_push_dummy_call);
|
|
}
|
|
|
|
/* gdbarch initialization for Cygwin on i386. */
|
|
|
|
static void
|
|
i386_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
|
|
{
|
|
i386_windows_init_abi_common (info, gdbarch);
|
|
cygwin_init_abi (info, gdbarch);
|
|
}
|
|
|
|
static gdb_osabi
|
|
i386_windows_osabi_sniffer (bfd *abfd)
|
|
{
|
|
const char *target_name = bfd_get_target (abfd);
|
|
|
|
if (!streq (target_name, "pei-i386"))
|
|
return GDB_OSABI_UNKNOWN;
|
|
|
|
if (is_linked_with_cygwin_dll (abfd))
|
|
return GDB_OSABI_CYGWIN;
|
|
|
|
return GDB_OSABI_WINDOWS;
|
|
}
|
|
|
|
static enum gdb_osabi
|
|
i386_cygwin_core_osabi_sniffer (bfd *abfd)
|
|
{
|
|
const char *target_name = bfd_get_target (abfd);
|
|
|
|
/* Cygwin uses elf core dumps. Do not claim all ELF executables,
|
|
check whether there is a .reg section of proper size. */
|
|
if (strcmp (target_name, "elf32-i386") == 0)
|
|
{
|
|
asection *section = bfd_get_section_by_name (abfd, ".reg");
|
|
if (section != nullptr
|
|
&& bfd_section_size (section) == I386_WINDOWS_SIZEOF_GREGSET)
|
|
return GDB_OSABI_CYGWIN;
|
|
}
|
|
|
|
return GDB_OSABI_UNKNOWN;
|
|
}
|
|
|
|
void _initialize_i386_windows_tdep ();
|
|
void
|
|
_initialize_i386_windows_tdep ()
|
|
{
|
|
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
|
|
i386_windows_osabi_sniffer);
|
|
|
|
/* Cygwin uses elf core dumps. */
|
|
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
|
|
i386_cygwin_core_osabi_sniffer);
|
|
|
|
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_WINDOWS,
|
|
i386_windows_init_abi);
|
|
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_CYGWIN,
|
|
i386_cygwin_init_abi);
|
|
}
|