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authorMark Kettenis <kettenis@gnu.org>2005-12-13 10:24:35 +0000
committerMark Kettenis <kettenis@gnu.org>2005-12-13 10:24:35 +0000
commita717134b331a2e8ccd5e43f15683a202c4d7ea64 (patch)
tree1e4715b4e5b395cfcfe3fd3408e23bc8a8d2187c /gdb
parent755f4b216be934e2f6ac1a705d42622f46741a81 (diff)
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* hppa-hpux-tdep.c (hppa_hpux_sigtramp_unwind_sniffer): Detect
export stub for signal trampoline as a signal trampoline too.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog3
-rw-r--r--gdb/hppa-hpux-tdep.c16
2 files changed, 19 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 230b841..0af48eb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,8 @@
2005-12-13 Mark Kettenis <kettenis@gnu.org>
+ * hppa-hpux-tdep.c (hppa_hpux_sigtramp_unwind_sniffer): Detect
+ export stub for signal trampoline as a signal trampoline too.
+
* hppa-hpux-tdep.c (hppa_hpux_sigtramp_frame_unwind_cache): Don't
set pcoqh to rp.
diff --git a/gdb/hppa-hpux-tdep.c b/gdb/hppa-hpux-tdep.c
index c1d35b5..17b4e2f 100644
--- a/gdb/hppa-hpux-tdep.c
+++ b/gdb/hppa-hpux-tdep.c
@@ -1276,6 +1276,22 @@ hppa_hpux_sigtramp_unwind_sniffer (struct frame_info *next_frame)
u = find_unwind_entry (pc);
+ /* If this is an export stub, try to get the unwind descriptor for
+ the actual function itself. */
+ if (u && u->stub_unwind.stub_type == EXPORT)
+ {
+ gdb_byte buf[HPPA_INSN_SIZE];
+ unsigned long insn;
+
+ if (!safe_frame_unwind_memory (next_frame, u->region_start,
+ buf, sizeof buf))
+ return NULL;
+
+ insn = extract_unsigned_integer (buf, sizeof buf);
+ if ((insn & 0xffe0e000) == 0xe8400000)
+ u = find_unwind_entry(u->region_start + hppa_extract_17 (insn) + 8);
+ }
+
if (u && u->HP_UX_interrupt_marker)
return &hppa_hpux_sigtramp_frame_unwind;