make intentional faults work in asm

2 files changed, 6 insertions, 3 deletions

diff --git a/src/jsifier.js b/src/jsifier.js
index 3483b8b1..53d23140 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -914,7 +914,11 @@ function JSify(data, functionsOnly, givenFunctions) {
       case VAR_NATIVIZED:
         if (isNumber(item.ident)) {
           // Direct write to a memory address; this may be an intentional segfault, if not, it is a bug in the source
-          return 'throw "fault on write to ' + item.ident + '";';
+          if (ASM_JS) {
+            return 'abort(' + item.ident + ')';
+          } else {
+            return 'throw "fault on write to ' + item.ident + '";';
+          }
         }
         return item.ident + '=' + value + ';'; // We have the actual value here
         break;
diff --git a/tests/runner.py b/tests/runner.py
index bf6986db..ce5f346a 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -4048,7 +4048,6 @@ The current type of b is: 9
       self.do_run(src, 'time: ') # compilation check, mainly
 
     def test_intentional_fault(self):
-      if Settings.ASM_JS: return self.skip('no throw support in asm')
       # Some programs intentionally segfault themselves, we should compile that into a throw
       src = r'''
         int main () {
@@ -4056,7 +4055,7 @@ The current type of b is: 9
           return 0;
         }
         '''
-      self.do_run(src, 'fault on write to 0')
+      self.do_run(src, 'fault on write to 0' if not Settings.ASM_JS else 'Assertion: 0')
 
     def test_trickystring(self):
       src = r'''