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| author | Randolph Chung <tausq@debian.org> | 2004-12-08 01:44:02 +0000 |
|---|---|---|
| committer | Randolph Chung <tausq@debian.org> | 2004-12-08 01:44:02 +0000 |
| commit | f1b38a579122b37f86f25c35e23eb75b72978bd1 (patch) | |
| tree | ea9e83a2153ced507d2853efb3539512064b870c /gdb/hppa-tdep.c | |
| parent | 419b8bfb232845d92d913a1fed31c8a9b86ca936 (diff) | |
| download | gdb-f1b38a579122b37f86f25c35e23eb75b72978bd1.zip gdb-f1b38a579122b37f86f25c35e23eb75b72978bd1.tar.gz gdb-f1b38a579122b37f86f25c35e23eb75b72978bd1.tar.bz2 | |
2004-12-07 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_stub_Frame_unwind_cache): Stop unwinding if
unwinding from a frame with pc == 0.
(hppa_stub_frame_this_id): Likewise.
(hppa_stub_frame_prev_register): Only provide real values if the frame
cache is not NULL.
Diffstat (limited to 'gdb/hppa-tdep.c')
| -rw-r--r-- | gdb/hppa-tdep.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c index 3bd058d..ae7c519 100644 --- a/gdb/hppa-tdep.c +++ b/gdb/hppa-tdep.c @@ -2092,6 +2092,9 @@ hppa_stub_frame_unwind_cache (struct frame_info *next_frame, if (*this_cache) return *this_cache; + if (frame_pc_unwind (next_frame) == 0) + return NULL; + info = FRAME_OBSTACK_ZALLOC (struct hppa_stub_unwind_cache); *this_cache = info; info->saved_regs = trad_frame_alloc_saved_regs (next_frame); @@ -2126,7 +2129,11 @@ hppa_stub_frame_this_id (struct frame_info *next_frame, { struct hppa_stub_unwind_cache *info = hppa_stub_frame_unwind_cache (next_frame, this_prologue_cache); - *this_id = frame_id_build (info->base, frame_pc_unwind (next_frame)); + + if (info) + *this_id = frame_id_build (info->base, frame_func_unwind (next_frame)); + else + *this_id = null_frame_id; } static void @@ -2138,8 +2145,13 @@ hppa_stub_frame_prev_register (struct frame_info *next_frame, { struct hppa_stub_unwind_cache *info = hppa_stub_frame_unwind_cache (next_frame, this_prologue_cache); - hppa_frame_prev_register_helper (next_frame, info->saved_regs, regnum, - optimizedp, lvalp, addrp, realnump, valuep); + + if (info) + hppa_frame_prev_register_helper (next_frame, info->saved_regs, regnum, + optimizedp, lvalp, addrp, realnump, + valuep); + else + error ("Requesting registers from null frame.\n"); } static const struct frame_unwind hppa_stub_frame_unwind = { |