/* Target-dependent code for GNU/Linux x86-64.
- Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007
+ Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Jiri Smid, SuSE Labs.
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "arch-utils.h"
#include "frame.h"
#include "gdbcore.h"
#include "regcache.h"
#include "gdbtypes.h"
#include "reggroups.h"
#include "amd64-linux-tdep.h"
+#include "linux-tdep.h"
#include "gdb_string.h"
the routine. Otherwise, return 0. */
static CORE_ADDR
-amd64_linux_sigtramp_start (struct frame_info *next_frame)
+amd64_linux_sigtramp_start (struct frame_info *this_frame)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
gdb_byte buf[LINUX_SIGTRAMP_LEN];
/* We only recognize a signal trampoline if PC is at the start of
PC is not at the start of the instruction sequence, there will be
a few trailing readable bytes on the stack. */
- if (!safe_frame_unwind_memory (next_frame, pc, buf, sizeof buf))
+ if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf))
return 0;
if (buf[0] != LINUX_SIGTRAMP_INSN0)
return 0;
pc -= LINUX_SIGTRAMP_OFFSET1;
- if (!safe_frame_unwind_memory (next_frame, pc, buf, sizeof buf))
+ if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf))
return 0;
}
return pc;
}
-/* Return whether the frame preceding NEXT_FRAME corresponds to a
- GNU/Linux sigtramp routine. */
+/* Return whether THIS_FRAME corresponds to a GNU/Linux sigtramp
+ routine. */
static int
-amd64_linux_sigtramp_p (struct frame_info *next_frame)
+amd64_linux_sigtramp_p (struct frame_info *this_frame)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
char *name;
find_pc_partial_function (pc, &name, NULL, NULL);
__sigaction, or __libc_sigaction (all aliases to the same
function). */
if (name == NULL || strstr (name, "sigaction") != NULL)
- return (amd64_linux_sigtramp_start (next_frame) != 0);
+ return (amd64_linux_sigtramp_start (this_frame) != 0);
return (strcmp ("__restore_rt", name) == 0);
}
/* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>. */
#define AMD64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 40
-/* Assuming NEXT_FRAME is a frame following a GNU/Linux sigtramp
- routine, return the address of the associated sigcontext structure. */
+/* Assuming THIS_FRAME is a GNU/Linux sigtramp routine, return the
+ address of the associated sigcontext structure. */
static CORE_ADDR
-amd64_linux_sigcontext_addr (struct frame_info *next_frame)
+amd64_linux_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 sp;
gdb_byte buf[8];
- frame_unwind_register (next_frame, gdbarch_sp_regnum (current_gdbarch), buf);
- sp = extract_unsigned_integer (buf, 8);
+ get_frame_register (this_frame, AMD64_RSP_REGNUM, buf);
+ sp = extract_unsigned_integer (buf, 8, byte_order);
/* The sigcontext structure is part of the user context. A pointer
to the user context is passed as the third argument to the signal
/* Replacement register functions which know about %orig_rax. */
static const char *
-amd64_linux_register_name (int reg)
+amd64_linux_register_name (struct gdbarch *gdbarch, int reg)
{
if (reg == AMD64_LINUX_ORIG_RAX_REGNUM)
return "orig_rax";
- return amd64_register_name (reg);
+ return amd64_register_name (gdbarch, reg);
}
static struct type *
amd64_linux_register_type (struct gdbarch *gdbarch, int reg)
{
if (reg == AMD64_LINUX_ORIG_RAX_REGNUM)
- return builtin_type_int64;
+ return builtin_type (gdbarch)->builtin_int64;
return amd64_register_type (gdbarch, reg);
}
/* Enable TLS support. */
set_gdbarch_fetch_tls_load_module_address (gdbarch,
svr4_fetch_objfile_link_map);
+
+ /* Displaced stepping. */
+ set_gdbarch_displaced_step_copy_insn (gdbarch,
+ amd64_displaced_step_copy_insn);
+ set_gdbarch_displaced_step_fixup (gdbarch, amd64_displaced_step_fixup);
+ set_gdbarch_displaced_step_free_closure (gdbarch,
+ simple_displaced_step_free_closure);
+ set_gdbarch_displaced_step_location (gdbarch,
+ displaced_step_at_entry_point);
+
+ set_gdbarch_get_siginfo_type (gdbarch, linux_get_siginfo_type);
}
\f
projects / deliverable / binutils-gdb.git / blobdiff