diff options
| author | marcel <marcel@FreeBSD.org> | 2005-09-11 05:55:24 +0000 |
|---|---|---|
| committer | marcel <marcel@FreeBSD.org> | 2005-09-11 05:55:24 +0000 |
| commit | afc227eedb726879e091d998c7327fc5734e6069 (patch) | |
| tree | 89eb7523186e43678dfe2f64a4d9b935c415eeba /gnu | |
| parent | 5c551253ea39a412aa725f5e763c1c1cbe65575e (diff) | |
| download | FreeBSD-src-afc227eedb726879e091d998c7327fc5734e6069.zip FreeBSD-src-afc227eedb726879e091d998c7327fc5734e6069.tar.gz | |
Unwind across intrframes as well. While here, better handle bottom of
stack by claiming the frame when the IP is 0. It's a bit of a kluge,
but avoids screens full of bogus frames.
MFC after: 1 week
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/usr.bin/gdb/kgdb/trgt_amd64.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gnu/usr.bin/gdb/kgdb/trgt_amd64.c b/gnu/usr.bin/gdb/kgdb/trgt_amd64.c index 9b83fd3..c3596fb 100644 --- a/gnu/usr.bin/gdb/kgdb/trgt_amd64.c +++ b/gnu/usr.bin/gdb/kgdb/trgt_amd64.c @@ -150,12 +150,15 @@ kgdb_trgt_trapframe_prev_register(struct frame_info *next_frame, *lvalp = not_lval; *realnump = -1; + cache = kgdb_trgt_frame_cache(next_frame, this_cache); + if (cache->pc == 0) + return; + ofs = (regnum >= AMD64_RAX_REGNUM && regnum <= AMD64_EFLAGS_REGNUM + 2) ? kgdb_trgt_frame_offset[regnum] : -1; if (ofs == -1) return; - cache = kgdb_trgt_frame_cache(next_frame, this_cache); *addrp = cache->sp + ofs; *lvalp = lval_memory; target_read_memory(*addrp, valuep, regsz); @@ -174,11 +177,14 @@ kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame) CORE_ADDR pc; pc = frame_pc_unwind(next_frame); + if (pc == 0) + return (&kgdb_trgt_trapframe_unwind); pname = NULL; find_pc_partial_function(pc, &pname, NULL, NULL); if (pname == NULL) return (NULL); - if (strcmp(pname, "calltrap") == 0) + if (strcmp(pname, "calltrap") == 0 || + (pname[0] == 'X' && pname[1] != '_')) return (&kgdb_trgt_trapframe_unwind); /* printf("%s: %lx =%s\n", __func__, pc, pname); */ return (NULL); |
