diff -r 000000000000 -r 6474c204b198 js/src/shell/js-gdb.gdb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/shell/js-gdb.gdb	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+define hookpost-run
+    if ($sigaction)
+        call free($sigaction)
+        set $sigaction = 0
+    end
+end
+
+catch signal SIGSEGV
+commands
+    if !$sigaction
+        set $sigaction = malloc(sizeof(sigaction))
+    end
+    set $ignored = __sigaction(11, 0, $sigaction)
+    set $handler = ((struct sigaction *)$sigaction)->__sigaction_handler.sa_handler
+    if $handler == AsmJSFaultHandler
+        continue
+    end
+end