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-rw-r--r--gdb/hppa-tdep.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index b771170..d5595dc 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -866,7 +866,22 @@ restart:
will return to. */
u = find_unwind_entry (pc);
if (u && u->stub_type != 0)
- goto restart;
+ {
+ unsigned int insn;
+
+ /* If this is a dynamic executable, and we're in a signal handler,
+ then the call chain will eventually point us into the stub for
+ _sigreturn. Unlike most cases, we'll be pointed to the branch
+ to the real sigreturn rather than the code after the real branch!.
+
+ Else, try to dig the address the stub will return to in the normal
+ fashion. */
+ insn = read_memory_integer (pc, 4);
+ if ((insn & 0xfc00e000) == 0xe8000000)
+ return (pc + extract_17 (insn) + 8) & ~0x3;
+ else
+ goto restart;
+ }
return pc;
}