* step flag bit by messing with the flags stored in a signal context,
* so we need to implement single stepping in a more roundabout way. */
#define CANNOT_GET_TO_SINGLE_STEP_FLAG
-#define SIG_MEMORY_FAULT SIGSEGV
/* Sometime in late 2005 FreeBSD was changed to signal SIGSEGV instead
* of SIGBUS for memory faults, as required by POSIX. In order to
* support both new and old FreeBSD at the same time, both signals are
* quaint memories, feel free to delete this hack (and any code that's
* #ifdef SIG_MEMORY_FAULT2'ed). -- JES, 2005-12-30
*/
-#define SIG_MEMORY_FAULT2 SIGBUS
+/* Hooking both SIGBUS and SIGSEGV causes troubles on some situation,
+ * so use a variable.
+ */
+extern int sig_memory_fault;
+#define SIG_MEMORY_FAULT (sig_memory_fault)
#define SIG_INTERRUPT_THREAD (SIGINFO)
#define SIG_STOP_FOR_GC (SIGUSR1)