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2004-05-25 Randolph Chung <tausq@debian.org> 

* hppa-tdep.c (hppa_fallback_frame_cache): Handle stack adjustment,
	and multiple stack unwinds.
	(hppa_stub_unwind_sniffer): Handle unwind from pc == 0.
This commit is contained in:
Randolph Chung 2004-05-26 04:02:24 +00:00
parent b057cbf032
commit 6d1be3f186
2 changed files with 16 additions and 10 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2004-05-25 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_fallback_frame_cache): Handle stack adjustment,
and multiple stack unwinds.
(hppa_stub_unwind_sniffer): Handle unwind from pc == 0.
2004-05-25 Andrew Cagney <cagney@gnu.org>
* symfile.h (symbol_file_add_from_memory): Delete declaration.

20
gdb/hppa-tdep.c
View File

@ -1887,6 +1887,7 @@ static struct hppa_frame_cache *
hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
{
struct hppa_frame_cache *cache;
unsigned int frame_size;
CORE_ADDR pc, start_pc, end_pc, cur_pc;
cache = FRAME_OBSTACK_ZALLOC (struct hppa_frame_cache);
@ -1895,6 +1896,7 @@ hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
pc = frame_func_unwind (next_frame);
cur_pc = frame_pc_unwind (next_frame);
frame_size = 0;
find_pc_partial_function (pc, NULL, &start_pc, &end_pc);
@ -1914,21 +1916,18 @@ hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
insn = read_memory_unsigned_integer (pc, 4);
frame_size += prologue_inst_adjust_sp (insn);
/* There are limited ways to store the return pointer into the
stack. */
if (insn == 0x6bc23fd9) /* stw rp,-0x14(sr0,sp) */
{
cache->saved_regs[HPPA_RP_REGNUM].addr = -20;
break;
}
cache->saved_regs[HPPA_RP_REGNUM].addr = -20;
else if (insn == 0x0fc212c1) /* std rp,-0x10(sr0,sp) */
{
cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
break;
}
cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
}
cache->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
cache->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM) - frame_size;
trad_frame_set_value (cache->saved_regs, HPPA_SP_REGNUM, cache->base);
if (trad_frame_addr_p (cache->saved_regs, HPPA_RP_REGNUM))
{
@ -2080,7 +2079,8 @@ hppa_stub_unwind_sniffer (struct frame_info *next_frame)
{
CORE_ADDR pc = frame_pc_unwind (next_frame);
if (IN_SOLIB_CALL_TRAMPOLINE (pc, NULL)
if (pc == 0
|| IN_SOLIB_CALL_TRAMPOLINE (pc, NULL)
|| IN_SOLIB_RETURN_TRAMPOLINE (pc, NULL))
return &hppa_stub_frame_unwind;
return NULL;