diff options
Diffstat (limited to 'gdb/i386-linux-tdep.c')
| -rw-r--r-- | gdb/i386-linux-tdep.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/gdb/i386-linux-tdep.c b/gdb/i386-linux-tdep.c index a833fb5..0d6ab40 100644 --- a/gdb/i386-linux-tdep.c +++ b/gdb/i386-linux-tdep.c @@ -209,11 +209,17 @@ i386_linux_rt_sigtramp_start (CORE_ADDR pc) static int i386_linux_pc_in_sigtramp (CORE_ADDR pc, char *name) { - if (name) - return STREQ ("__restore", name) || STREQ ("__restore_rt", name); - - return (i386_linux_sigtramp_start (pc) != 0 - || i386_linux_rt_sigtramp_start (pc) != 0); + /* If we have NAME, we can optimize the search. The trampolines are + named __restore and __restore_rt. However, they aren't dynamically + exported from the shared C library, so the trampoline may appear to + be part of the preceding function. This should always be sigaction, + __sigaction, or __libc_sigaction (all aliases to the same function). */ + if (name == NULL || strstr (name, "sigaction") != NULL) + return (i386_linux_sigtramp_start (pc) != 0 + || i386_linux_rt_sigtramp_start (pc) != 0); + + return (strcmp ("__restore", name) == 0 + || strcmp ("__restore_rt", name) == 0); } /* Assuming FRAME is for a GNU/Linux sigtramp routine, return the |