/* Native-dependent code for AMD64.
- Copyright 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003-2015 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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbarch.h"
#include "regcache.h"
-#include "gdb_assert.h"
-
#include "i386-tdep.h"
-#include "x86-64-tdep.h"
+#include "amd64-tdep.h"
+#include "amd64-nat.h"
/* The following bits of code help with implementing debugging 32-bit
code natively on AMD64. The idea is to define two mappings between
general-purpose register set. */
static int
-amd64_native_gregset_reg_offset (int regnum)
+amd64_native_gregset_reg_offset (struct gdbarch *gdbarch, int regnum)
{
int *reg_offset = amd64_native_gregset64_reg_offset;
int num_regs = amd64_native_gregset64_num_regs;
gdb_assert (regnum >= 0);
- if (gdbarch_ptr_bit (current_gdbarch) == 32)
+ if (gdbarch_bfd_arch_info (gdbarch)->bits_per_word == 32)
{
reg_offset = amd64_native_gregset32_reg_offset;
num_regs = amd64_native_gregset32_num_regs;
}
- if (num_regs > NUM_REGS)
- num_regs = NUM_REGS;
+ if (num_regs > gdbarch_num_regs (gdbarch))
+ num_regs = gdbarch_num_regs (gdbarch);
- if (regnum < num_regs && regnum < NUM_REGS)
+ if (regnum < num_regs && regnum < gdbarch_num_regs (gdbarch))
return reg_offset[regnum];
return -1;
register REGNUM. */
int
-amd64_native_gregset_supplies_p (int regnum)
+amd64_native_gregset_supplies_p (struct gdbarch *gdbarch, int regnum)
{
- return (amd64_native_gregset_reg_offset (regnum) != -1);
+ return (amd64_native_gregset_reg_offset (gdbarch, regnum) != -1);
}
-/* Supply register REGNUM, whose contents are store in BUF, to
+/* Supply register REGNUM, whose contents are stored in GREGS, to
REGCACHE. If REGNUM is -1, supply all appropriate registers. */
void
amd64_supply_native_gregset (struct regcache *regcache,
const void *gregs, int regnum)
{
- const char *regs = gregs;
+ const char *regs = (const char *) gregs;
struct gdbarch *gdbarch = get_regcache_arch (regcache);
int num_regs = amd64_native_gregset64_num_regs;
int i;
- if (gdbarch_ptr_bit (gdbarch) == 32)
+ if (gdbarch_bfd_arch_info (gdbarch)->bits_per_word == 32)
num_regs = amd64_native_gregset32_num_regs;
- if (num_regs > NUM_REGS)
- num_regs = NUM_REGS;
+ if (num_regs > gdbarch_num_regs (gdbarch))
+ num_regs = gdbarch_num_regs (gdbarch);
for (i = 0; i < num_regs; i++)
{
if (regnum == -1 || regnum == i)
{
- int offset = amd64_native_gregset_reg_offset (i);
+ int offset = amd64_native_gregset_reg_offset (gdbarch, i);
if (offset != -1)
regcache_raw_supply (regcache, i, regs + offset);
amd64_collect_native_gregset (const struct regcache *regcache,
void *gregs, int regnum)
{
- char *regs = gregs;
+ char *regs = (char *) gregs;
struct gdbarch *gdbarch = get_regcache_arch (regcache);
int num_regs = amd64_native_gregset64_num_regs;
int i;
- if (gdbarch_ptr_bit (gdbarch) == 32)
- num_regs = amd64_native_gregset32_num_regs;
+ if (gdbarch_bfd_arch_info (gdbarch)->bits_per_word == 32)
+ {
+ num_regs = amd64_native_gregset32_num_regs;
+
+ /* Make sure %eax, %ebx, %ecx, %edx, %esi, %edi, %ebp, %esp and
+ %eip get zero-extended to 64 bits. */
+ for (i = 0; i <= I386_EIP_REGNUM; i++)
+ {
+ if (regnum == -1 || regnum == i)
+ memset (regs + amd64_native_gregset_reg_offset (gdbarch, i), 0, 8);
+ }
+ /* Ditto for %cs, %ss, %ds, %es, %fs, and %gs. */
+ for (i = I386_CS_REGNUM; i <= I386_GS_REGNUM; i++)
+ {
+ if (regnum == -1 || regnum == i)
+ memset (regs + amd64_native_gregset_reg_offset (gdbarch, i), 0, 8);
+ }
+ }
- if (num_regs > NUM_REGS)
- num_regs = NUM_REGS;
+ if (num_regs > gdbarch_num_regs (gdbarch))
+ num_regs = gdbarch_num_regs (gdbarch);
for (i = 0; i < num_regs; i++)
{
if (regnum == -1 || regnum == i)
{
- int offset = amd64_native_gregset_reg_offset (i);
+ int offset = amd64_native_gregset_reg_offset (gdbarch, i);
if (offset != -1)
regcache_raw_collect (regcache, i, regs + offset);