/* Signal trampoline unwinder, for GDB the GNU Debugger.
- Copyright (C) 2004, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GDB.
tramp_frame_cache (struct frame_info *this_frame,
void **this_cache)
{
- CORE_ADDR pc = get_frame_pc (this_frame);
struct tramp_frame_cache *tramp_cache = (*this_cache);
+
if (tramp_cache->trad_cache == NULL)
{
tramp_cache->trad_cache = trad_frame_cache_zalloc (this_frame);
{
struct trad_frame_cache *trad_cache
= tramp_frame_cache (this_frame, this_cache);
+
trad_frame_get_id (trad_cache, this_id);
}
{
struct trad_frame_cache *trad_cache
= tramp_frame_cache (this_frame, this_cache);
+
return trad_frame_get_register (trad_cache, this_frame, prev_regnum);
}
tramp_frame_start (const struct tramp_frame *tramp,
struct frame_info *this_frame, CORE_ADDR pc)
{
+ struct gdbarch *gdbarch = get_frame_arch (this_frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int ti;
+
/* Search through the trampoline for one that matches the
instruction sequence around PC. */
for (ti = 0; tramp->insn[ti].bytes != TRAMP_SENTINEL_INSN; ti++)
{
CORE_ADDR func = pc - tramp->insn_size * ti;
int i;
+
for (i = 0; 1; i++)
{
gdb_byte buf[sizeof (tramp->insn[0])];
ULONGEST insn;
+
if (tramp->insn[i].bytes == TRAMP_SENTINEL_INSN)
return func;
if (!safe_frame_unwind_memory (this_frame,
func + i * tramp->insn_size,
buf, tramp->insn_size))
break;
- insn = extract_unsigned_integer (buf, tramp->insn_size);
+ insn = extract_unsigned_integer (buf, tramp->insn_size, byte_order);
if (tramp->insn[i].bytes != (insn & tramp->insn[i].mask))
break;
}