You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Paul Eggert. */
#include "c-stack.h"
#include "exitfail.h"
+#if (HAVE_STRUCT_SIGACTION_SA_SIGACTION && defined SA_NODEFER \
+ && defined SA_ONSTACK && defined SA_RESETHAND && defined SA_SIGINFO)
+# define SIGACTION_WORKS 1
+#else
+# define SIGACTION_WORKS 0
+#endif
+
extern char *program_name;
/* The user-specified action to take when a SEGV-related program error
void *p;
} alternate_signal_stack;
-# if defined SA_ONSTACK && defined SA_SIGINFO && defined _SC_PAGESIZE
+# if SIGACTION_WORKS
/* Handle a segmentation violation and exit. This function is
async-signal-safe. */
stack_overflow_message = _("stack overflow");
{
-# if ! (defined SA_ONSTACK && defined SA_SIGINFO && defined _SC_PAGESIZE)
- return signal (SIGSEGV, die) == SIG_ERR ? -1 : 0;
-# else
+# if SIGACTION_WORKS
struct sigaction act;
sigemptyset (&act.sa_mask);
act.sa_sigaction = segv_handler;
return sigaction (SIGSEGV, &act, 0);
+# else
+ return signal (SIGSEGV, die) == SIG_ERR ? -1 : 0;
# endif
}
}