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* sparcnbsd-tdep.c, sparcobsd-tdep.c: Update for unwinder changes.

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This commit is contained in:
Mark Kettenis
2008-05-29 15:51:37 +00:00
parent 76b233ddaa
commit 7ea566bee7
3 changed files with 71 additions and 66 deletions
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62
gdb/sparcobsd-tdep.c
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@@ -69,7 +69,8 @@ sparc32obsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
}
static struct sparc_frame_cache *
sparc32obsd_frame_cache (struct frame_info *next_frame, void **this_cache)
sparc32obsd_sigtramp_frame_cache (struct frame_info *this_frame,
void **this_cache)
{
struct sparc_frame_cache *cache;
CORE_ADDR addr;
@@ -77,71 +78,72 @@ sparc32obsd_frame_cache (struct frame_info *next_frame, void **this_cache)
if (*this_cache)
return *this_cache;
cache = sparc_frame_cache (next_frame, this_cache);
cache = sparc_frame_cache (this_frame, this_cache);
gdb_assert (cache == *this_cache);
/* If we couldn't find the frame's function, we're probably dealing
with an on-stack signal trampoline. */
if (cache->pc == 0)
{
cache->pc = frame_pc_unwind (next_frame);
cache->pc = get_frame_pc (this_frame);
cache->pc &= ~(sparc32obsd_page_size - 1);
/* Since we couldn't find the frame's function, the cache was
initialized under the assumption that we're frameless. */
cache->frameless_p = 0;
addr = frame_unwind_register_unsigned (next_frame, SPARC_FP_REGNUM);
addr = get_frame_register_unsigned (this_frame, SPARC_FP_REGNUM);
cache->base = addr;
}
cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (next_frame);
cache->saved_regs = sparc32nbsd_sigcontext_saved_regs (this_frame);
return cache;
}
static void
sparc32obsd_frame_this_id (struct frame_info *next_frame, void **this_cache,
struct frame_id *this_id)
sparc32obsd_sigtramp_frame_this_id (struct frame_info *this_frame,
void **this_cache,
struct frame_id *this_id)
{
struct sparc_frame_cache *cache =
sparc32obsd_frame_cache (next_frame, this_cache);
sparc32obsd_sigtramp_frame_cache (this_frame, this_cache);
(*this_id) = frame_id_build (cache->base, cache->pc);
}
static void
sparc32obsd_frame_prev_register (struct frame_info *next_frame,
void **this_cache,
int regnum, int *optimizedp,
enum lval_type *lvalp, CORE_ADDR *addrp,
int *realnump, gdb_byte *valuep)
static struct value *
sparc32obsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
void **this_cache, int regnum)
{
struct sparc_frame_cache *cache =
sparc32obsd_frame_cache (next_frame, this_cache);
sparc32obsd_sigtramp_frame_cache (this_frame, this_cache);
trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
optimizedp, lvalp, addrp, realnump, valuep);
return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
}
static const struct frame_unwind sparc32obsd_frame_unwind =
static int
sparc32obsd_sigtramp_frame_sniffer (const struct frame_unwind *self,
struct frame_info *this_frame,
void **this_cache)
{
SIGTRAMP_FRAME,
sparc32obsd_frame_this_id,
sparc32obsd_frame_prev_register
};
static const struct frame_unwind *
sparc32obsd_sigtramp_frame_sniffer (struct frame_info *next_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);
if (sparc32obsd_pc_in_sigtramp (pc, name))
return &sparc32obsd_frame_unwind;
return 1;
return NULL;
return 0;
}
static const struct frame_unwind sparc32obsd_sigtramp_frame_unwind =
{
SIGTRAMP_FRAME,
sparc32obsd_sigtramp_frame_this_id,
sparc32obsd_sigtramp_frame_prev_register,
NULL,
sparc32obsd_sigtramp_frame_sniffer
};
/* Offset wthin the thread structure where we can find %fp and %i7. */
@@ -236,7 +238,7 @@ sparc32obsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
set_gdbarch_skip_solib_resolver (gdbarch, obsd_skip_solib_resolver);
frame_unwind_append_sniffer (gdbarch, sparc32obsd_sigtramp_frame_sniffer);
frame_unwind_append_unwinder (gdbarch, &sparc32obsd_sigtramp_frame_unwind);
/* OpenBSD provides a user-level threads implementation. */
bsd_uthread_set_supply_uthread (gdbarch, sparc32obsd_supply_uthread);