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| author | Randolph Chung <tausq@debian.org> | 2006-03-01 05:22:38 +0000 |
|---|---|---|
| committer | Randolph Chung <tausq@debian.org> | 2006-03-01 05:22:38 +0000 |
| commit | 46acf081206ec0c1a489dada54bfb9f210384ee8 (patch) | |
| tree | a1d9db67c5960d800709a236519bf9a982723ece /gdb/hppa-tdep.c | |
| parent | 477e69e8fd0b70c4afa73cfbefb9be2253850bd8 (diff) | |
| download | gdb-46acf081206ec0c1a489dada54bfb9f210384ee8.zip gdb-46acf081206ec0c1a489dada54bfb9f210384ee8.tar.gz gdb-46acf081206ec0c1a489dada54bfb9f210384ee8.tar.bz2 | |
2006-03-01 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_frame_cache): Handle Region_Description and
Pseudo_SP_Set in unwind record.
Diffstat (limited to 'gdb/hppa-tdep.c')
| -rw-r--r-- | gdb/hppa-tdep.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c index 6a3ae47..d089c5d 100644 --- a/gdb/hppa-tdep.c +++ b/gdb/hppa-tdep.c @@ -1857,7 +1857,7 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache) GCC code. */ { int final_iteration = 0; - CORE_ADDR pc, end_pc; + CORE_ADDR pc, start_pc, end_pc; int looking_for_sp = u->Save_SP; int looking_for_rp = u->Save_RP; int fp_loc = -1; @@ -1877,9 +1877,19 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache) /* 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. */ + function (or 0). We can do better than that by using unwind records. + This only works if the Region_description of the unwind record + indicates that it includes the entry point of the function. + HP compilers sometimes generate unwind records for regions that + do not include the entry or exit point of a function. GNU tools + do not do this. */ + + if ((u->Region_description & 0x2) == 0) + start_pc = u->region_start; + else + start_pc = frame_func_unwind (next_frame); - prologue_end = skip_prologue_hard_way (u->region_start, 0); + prologue_end = skip_prologue_hard_way (start_pc, 0); end_pc = frame_pc_unwind (next_frame); if (prologue_end != 0 && end_pc > prologue_end) @@ -1887,7 +1897,7 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache) frame_size = 0; - for (pc = u->region_start; + for (pc = start_pc; ((saved_gr_mask || saved_fr_mask || looking_for_sp || looking_for_rp || frame_size < (u->Total_frame_size << 3)) @@ -2054,9 +2064,12 @@ hppa_frame_cache (struct frame_info *next_frame, void **this_cache) instead of Save_SP. */ fp = frame_unwind_register_unsigned (next_frame, HPPA_FP_REGNUM); + + if (u->Pseudo_SP_Set) + fp -= u->Total_frame_size << 3; if (frame_pc_unwind (next_frame) >= prologue_end - && u->Save_SP && fp != 0) + && (u->Save_SP || u->Pseudo_SP_Set) && fp != 0) { cache->base = fp; |