1 files changed, 98 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/asm.js/testStackWalking.js b/js/src/jit-test/tests/asm.js/testStackWalking.js
new file mode 100644
index 000000000..dfda4d8c9
--- /dev/null
+++ b/js/src/jit-test/tests/asm.js/testStackWalking.js
@@ -0,0 +1,98 @@
+load(libdir + "asm.js");
+load(libdir + "asserts.js");
+
+function matchStack(stackString, stackArray)
+{
+    var match = 0;
+    for (name of stackArray) {
+        match = stackString.indexOf(name, match);
+        if (match === -1)
+            throw name + " not found in the stack " + stack;
+    }
+}
+
+var stack;
+function dumpStack()
+{
+    stack = new Error().stack
+}
+
+setJitCompilerOption("ion.warmup.trigger", 10);
+setJitCompilerOption("baseline.warmup.trigger", 0);
+setJitCompilerOption("offthread-compilation.enable", 0);
+setCachingEnabled(true);
+
+var callFFI = asmCompile('global', 'ffis', USE_ASM + "var ffi=ffis.ffi; function f() { return ffi()|0 } return f");
+
+var f = asmLink(callFFI, null, {ffi:dumpStack});
+for (var i = 0; i < 15; i++) {
+    stack = null;
+    f();
+    matchStack(stack, ['dumpStack', 'f']);
+}
+
+if (isAsmJSCompilationAvailable() && isCachingEnabled()) {
+    var callFFI = asmCompile('global', 'ffis', USE_ASM + "var ffi=ffis.ffi; function f() { return ffi()|0 } return f");
+    assertEq(isAsmJSModuleLoadedFromCache(callFFI), true);
+    stack = null;
+    f();
+    matchStack(stack, ['dumpStack', 'f']);
+}
+
+var f1 = asmLink(callFFI, null, {ffi:dumpStack});
+var f2 = asmLink(callFFI, null, {ffi:function middle() { f1() }});
+stack = null;
+(function outer() { f2() })();
+matchStack(stack, ["dumpStack", "f", "middle", "f"]);
+
+function returnStackDumper() { return { valueOf:function() { stack = new Error().stack } } }
+var f = asmLink(callFFI, null, {ffi:returnStackDumper});
+for (var i = 0; i < 15; i++) {
+    stack = null;
+    f();
+    matchStack(stack, ['valueOf', 'f']);
+}
+
+var caught = false;
+try {
+    stack = null;
+    asmLink(asmCompile(USE_ASM + "function asmRec() { asmRec() } return asmRec"))();
+} catch (e) {
+    caught = true;
+    matchStack(e.stack, ['asmRec', 'asmRec', 'asmRec', 'asmRec']);
+}
+assertEq(caught, true);
+
+var caught = false;
+try {
+    callFFI(null, {ffi:Object.defineProperty})();
+} catch (e) {
+    caught = true;
+}
+assertEq(caught, true);
+
+asmLink(callFFI, null, {ffi:eval})();
+asmLink(callFFI, null, {ffi:Function})();
+asmLink(callFFI, null, {ffi:Error})();
+
+var manyCalls = asmCompile('global', 'ffis',
+    USE_ASM +
+    "var ffi=ffis.ffi;\
+     function f1(a,b,c,d,e,f,g,h,i,j,k) { \
+       a=a|0;b=b|0;c=c|0;d=d|0;e=e|0;f=f|0;g=g|0;h=h|0;i=i|0;j=j|0;k=k|0; \
+       ffi(); \
+       return (a+b+c+d+e+f+g+h+i+j+k)|0; \
+     } \
+     function f2() { \
+       return f1(1,2,3,4,5,6,7,8,f1(1,2,3,4,5,6,7,8,9,10,11)|0,10,11)|0; \
+     } \
+     function f3() { return 13 } \
+     function f4(i) { \
+       i=i|0; \
+       return TBL[i&3]()|0; \
+     } \
+     var TBL=[f3, f3, f2, f3]; \
+     return f4;");
+stack = null;
+assertEq(asmLink(manyCalls, null, {ffi:dumpStack})(2), 123);
+matchStack(stack, ['dumpStack', 'f1', 'f2', 'f4']);