diff options
Diffstat (limited to 'debug/segfault.c')
| -rw-r--r-- | debug/segfault.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/debug/segfault.c b/debug/segfault.c index bd1008d9af..cd3bfab55c 100644 --- a/debug/segfault.c +++ b/debug/segfault.c @@ -35,6 +35,10 @@ passed up by the signal handler. */ #include <sigcontextinfo.h> +#ifdef SA_SIGINFO +# define SIGCONTEXT siginfo_t *info, void * +#endif + /* Get code to possibly dump the content of all registers. */ #include <register-dump.h> @@ -101,7 +105,7 @@ catch_segfault (int signal, SIGCONTEXT ctx) Normally it will be found at arr[2], but it might appear later if there were some signal handler wrappers. Allow a few bytes difference to cope with as many arches as possible. */ - pc = (uintptr_t) GET_PC (ctx); + pc = sigcontext_get_pc (ctx); for (i = 0; i < cnt; ++i) if ((uintptr_t) arr[i] >= pc - 16 && (uintptr_t) arr[i] <= pc + 16) break; @@ -148,9 +152,15 @@ install_handler (void) const char *sigs = getenv ("SEGFAULT_SIGNALS"); const char *name; - sa.sa_handler = (void *) catch_segfault; +#ifdef SA_SIGINFO + sa.sa_sigaction = catch_segfault; + sa.sa_flags = SA_SIGINFO; +#else + sa.sa_handler = (void*) catch_segfault; + sa.sa_flags = 0; +#endif sigemptyset (&sa.sa_mask); - sa.sa_flags = SA_RESTART; + sa.sa_flags |= SA_RESTART; /* Maybe we are expected to use an alternative stack. */ if (getenv ("SEGFAULT_USE_ALTSTACK") != 0) |