1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/profiler/exception-unwind-hook.js b/js/src/jit-test/tests/profiler/exception-unwind-hook.js
new file mode 100644
index 0000000000..6b52d1615d
--- /dev/null
+++ b/js/src/jit-test/tests/profiler/exception-unwind-hook.js
@@ -0,0 +1,22 @@
+// Test interaction between exception handler, debugger's onExceptionUnwind,
+// and profiler's frame iterator.
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+
+g.eval("" + function f() {
+    for (var i = 0; i < 120; i++) {
+        try { throw 1; } catch {}
+    }
+});
+
+var count = 0;
+dbg.onExceptionUnwind = function() {
+    enableGeckoProfiling();
+    readGeckoProfilingStack();
+    disableGeckoProfiling();
+    count++;
+};
+
+g.f();
+assertEq(count, 120);