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2004-02-27 Andrew Cagney <cagney@redhat.com>

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* hppa-tdep.c (hppa_gdbarch_init): On 32-bit systems always use
	the new frame unwind code.
	(hppa_frame_cache): Use PCOQ_HEAD_REGNUM instead of PC_REGNUM.
	(hppa_frame_prev_register): Compute PCOQ_TAIL_REGNUM from
	PCOQ_HEAD_REGNUM.
This commit is contained in:
Andrew Cagney 2004-02-27 21:47:53 +00:00
parent fca7aa43b0
commit 412275d567
2 changed files with 47 additions and 9 deletions
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6
gdb/ChangeLog
View file

@ -1,5 +1,11 @@
2004-02-27 Andrew Cagney <cagney@redhat.com>
* hppa-tdep.c (hppa_gdbarch_init): On 32-bit systems always use
the new frame unwind code.
(hppa_frame_cache): Use PCOQ_HEAD_REGNUM instead of PC_REGNUM.
(hppa_frame_prev_register): Compute PCOQ_TAIL_REGNUM from
PCOQ_HEAD_REGNUM.
* hppa-tdep.c (hppa_gdbarch_init): On 32-bit systems always
"return_value" and "push_dummy_call".
(hppa32_use_struct_convention): Delete unused function.

50
gdb/hppa-tdep.c
View file

@ -4794,11 +4794,12 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
trad_frame_set_value (cache->saved_regs, SP_REGNUM, cache->base);
}
/* The PC is found in the "return register". */
/* The PC is found in the "return register", "Millicode" uses "r31"
as the return register while normal code uses "rp". */
if (u->Millicode)
cache->saved_regs[PC_REGNUM] = cache->saved_regs[31];
cache->saved_regs[PCOQ_HEAD_REGNUM] = cache->saved_regs[31];
else
cache->saved_regs[PC_REGNUM] = cache->saved_regs[RP_REGNUM];
cache->saved_regs[PCOQ_HEAD_REGNUM] = cache->saved_regs[RP_REGNUM];
{
/* Convert all the offsets into addresses. */
@ -4829,8 +4830,36 @@ hppa_frame_prev_register (struct frame_info *next_frame,
int *realnump, void *valuep)
{
struct hppa_frame_cache *info = hppa_frame_cache (next_frame, this_cache);
trad_frame_prev_register (next_frame, info->saved_regs, regnum,
optimizedp, lvalp, addrp, realnump, valuep);
struct gdbarch *gdbarch = get_frame_arch (next_frame);
if (regnum == PCOQ_TAIL_REGNUM)
{
/* The PCOQ TAIL, or NPC, needs to be computed from the unwound
PC register. */
*optimizedp = 0;
*lvalp = not_lval;
*addrp = 0;
*realnump = 0;
if (valuep)
{
int regsize = register_size (gdbarch, PCOQ_HEAD_REGNUM);
CORE_ADDR pc;
int optimized;
enum lval_type lval;
CORE_ADDR addr;
int realnum;
bfd_byte value[MAX_REGISTER_SIZE];
trad_frame_prev_register (next_frame, info->saved_regs,
PCOQ_HEAD_REGNUM, &optimized, &lval, &addr,
&realnum, &value);
pc = extract_unsigned_integer (&value, regsize);
store_unsigned_integer (valuep, regsize, pc + 4);
}
}
else
{
trad_frame_prev_register (next_frame, info->saved_regs, regnum,
optimizedp, lvalp, addrp, realnump, valuep);
}
}
static const struct frame_unwind hppa_frame_unwind =
@ -5827,15 +5856,15 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
}
/* Frame unwind methods. */
if (0)
switch (tdep->bytes_per_address)
{
case 4:
set_gdbarch_unwind_dummy_id (gdbarch, hppa_unwind_dummy_id);
set_gdbarch_unwind_pc (gdbarch, hppa_unwind_pc);
frame_unwind_append_sniffer (gdbarch, hppa_frame_unwind_sniffer);
frame_base_append_sniffer (gdbarch, hppa_frame_base_sniffer);
}
else
{
break;
case 8:
set_gdbarch_deprecated_saved_pc_after_call (gdbarch, hppa_saved_pc_after_call);
set_gdbarch_deprecated_init_frame_pc (gdbarch, deprecated_init_frame_pc_default);
set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, hppa_frame_init_saved_regs);
@ -5845,6 +5874,9 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
set_gdbarch_deprecated_frameless_function_invocation (gdbarch, hppa_frameless_function_invocation);
set_gdbarch_deprecated_frame_saved_pc (gdbarch, hppa_frame_saved_pc);
set_gdbarch_deprecated_pop_frame (gdbarch, hppa_pop_frame);
break;
default:
internal_error (__FILE__, __LINE__, "bad switch");
}
/* Hook in ABI-specific overrides, if they have been registered. */