diff options
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/hppa-tdep.c | 17 |
2 files changed, 21 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 47db053..30ba31d 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +Wed Jun 7 12:41:42 1995 Jeff Law (law@snake.cs.utah.edu) + + * hppa-tdep.c (frame_saved_pc): Handle backtracing through signal + handler in dynamically linked executables. + Tue Jun 6 10:44:25 1995 Michael Meissner <meissner@tiktok.cygnus.com> From Andrew Cagney <cagney@highland.com.au> 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; } |