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2004-11-03 Randolph Chung <tausq@debian.org>

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* hppa-tdep.c (hppa_frame_cache): Use frame_pc_unwind instead of
    frame_func_unwind to locate the unwind entry.
	(hppa_frame_this_id): Likewise.
This commit is contained in:
Randolph Chung 2004-11-03 23:20:43 +00:00
parent 166ada5802
commit d5c27f815b
2 changed files with 43 additions and 7 deletions
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6
gdb/ChangeLog
View file

@ -1,3 +1,9 @@
2004-11-03 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_frame_cache): Use frame_pc_unwind instead of
frame_func_unwind to locate the unwind entry.
(hppa_frame_this_id): Likewise.
2004-11-03 Andrew Cagney <cagney@gnu.org>
* gdb/NEWS: Mention internationalization, m32r-*-linux-gnu, 'p'

44
gdb/hppa-tdep.c
View file

@ -1580,7 +1580,7 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
/* Yow! */
u = find_unwind_entry (frame_func_unwind (next_frame));
u = find_unwind_entry (frame_pc_unwind (next_frame));
if (!u)
{
if (hppa_debug)
@ -1630,7 +1630,13 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
symbol information. hppa_skip_prologue also bounds the returned
pc by the passed in pc, so it will not return a pc in the next
function. */
prologue_end = hppa_skip_prologue (frame_func_unwind (next_frame));
/* We used to use frame_func_unwind () to locate the beginning of the
function to pass to skip_prologue (). However, when objects are
compiled without debug symbols, frame_func_unwind can return the wrong
function (or 0). We can do better than that by using unwind records. */
prologue_end = hppa_skip_prologue (u->region_start);
end_pc = frame_pc_unwind (next_frame);
if (prologue_end != 0 && end_pc > prologue_end)
@ -1638,7 +1644,7 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache)
frame_size = 0;
for (pc = frame_func_unwind (next_frame);
for (pc = u->region_start;
((saved_gr_mask || saved_fr_mask
|| looking_for_sp || looking_for_rp
|| frame_size < (u->Total_frame_size << 3))
@ -1881,8 +1887,14 @@ static void
hppa_frame_this_id (struct frame_info *next_frame, void **this_cache,
struct frame_id *this_id)
{
struct hppa_frame_cache *info = hppa_frame_cache (next_frame, this_cache);
(*this_id) = frame_id_build (info->base, frame_func_unwind (next_frame));
struct hppa_frame_cache *info;
CORE_ADDR pc = frame_pc_unwind (next_frame);
struct unwind_table_entry *u;
info = hppa_frame_cache (next_frame, this_cache);
u = find_unwind_entry (pc);
(*this_id) = frame_id_build (info->base, u->region_start);
}
static void
@ -1928,8 +1940,13 @@ hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
{
struct hppa_frame_cache *cache;
unsigned int frame_size;
int found_rp;
CORE_ADDR pc, start_pc, end_pc, cur_pc;
if (hppa_debug)
fprintf_unfiltered (gdb_stdlog, "{ hppa_fallback_frame_cache (frame=%d)-> ",
frame_relative_level(next_frame));
cache = FRAME_OBSTACK_ZALLOC (struct hppa_frame_cache);
(*this_cache) = cache;
cache->saved_regs = trad_frame_alloc_saved_regs (next_frame);
@ -1937,6 +1954,7 @@ 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;
found_rp = 0;
find_pc_partial_function (pc, NULL, &start_pc, &end_pc);
@ -1961,10 +1979,20 @@ hppa_fallback_frame_cache (struct frame_info *next_frame, void **this_cache)
/* 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;
else if (insn == 0x0fc212c1) /* std rp,-0x10(sr0,sp) */
cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
found_rp = 1;
}
else if (insn == 0x0fc212c1) /* std rp,-0x10(sr0,sp) */
{
cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
found_rp = 1;
}
}
if (hppa_debug)
fprintf_unfiltered (gdb_stdlog, " frame_size = %d, found_rp = %d }\n",
frame_size, found_rp);
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);
@ -2157,9 +2185,11 @@ unwind_command (char *exp, int from_tty)
printf_unfiltered ("\tregion_start = ");
print_address (u->region_start, gdb_stdout);
gdb_flush (gdb_stdout);
printf_unfiltered ("\n\tregion_end = ");
print_address (u->region_end, gdb_stdout);
gdb_flush (gdb_stdout);
#define pif(FLD) if (u->FLD) printf_unfiltered (" "#FLD);