Revision: 21584
Author:   [email protected]
Date:     Fri May 30 17:04:40 2014 UTC
Log:      Harden Runtime_FunctionSetPrototype, Isolate::PrintStack

BUG=chromium:377209
LOG=n
[email protected]

Review URL: https://codereview.chromium.org/306543002
http://code.google.com/p/v8/source/detail?r=21584

Modified:
 /branches/bleeding_edge/src/frames.cc
 /branches/bleeding_edge/src/hydrogen.cc
 /branches/bleeding_edge/src/runtime.cc

=======================================
--- /branches/bleeding_edge/src/frames.cc       Fri May 23 16:37:27 2014 UTC
+++ /branches/bleeding_edge/src/frames.cc       Fri May 30 17:04:40 2014 UTC
@@ -1235,6 +1235,10 @@
   if (this->context() != NULL && this->context()->IsContext()) {
     context = Context::cast(this->context());
   }
+  while (context->IsWithContext()) {
+    context = context->previous();
+    ASSERT(context != NULL);
+  }

   // Print heap-allocated local variables.
   if (heap_locals_count > 0) {
@@ -1245,8 +1249,9 @@
     accumulator->PrintName(scope_info->ContextLocalName(i));
     accumulator->Add(" = ");
     if (context != NULL) {
-      if (i < context->length()) {
- accumulator->Add("%o", context->get(Context::MIN_CONTEXT_SLOTS + i));
+      int index = Context::MIN_CONTEXT_SLOTS + i;
+      if (index < context->length()) {
+        accumulator->Add("%o", context->get(index));
       } else {
         accumulator->Add(
             "// warning: missing context slot - inconsistent frame?");
=======================================
--- /branches/bleeding_edge/src/hydrogen.cc     Thu May 29 04:13:50 2014 UTC
+++ /branches/bleeding_edge/src/hydrogen.cc     Fri May 30 17:04:40 2014 UTC
@@ -8733,7 +8733,6 @@
     CallRuntime* expr) {
   ZoneList<Expression*>* arguments = expr->arguments();

-  NoObservableSideEffectsScope scope(this);
   ASSERT(arguments->length()== 4);
   CHECK_ALIVE(VisitForValue(arguments->at(0)));
   HValue* obj = Pop();
@@ -8747,8 +8746,11 @@
   CHECK_ALIVE(VisitForValue(arguments->at(3)));
   HValue* byte_length = Pop();

-  BuildArrayBufferViewInitialization<JSDataView>(
-      obj, buffer, byte_offset, byte_length);
+  {
+    NoObservableSideEffectsScope scope(this);
+    BuildArrayBufferViewInitialization<JSDataView>(
+        obj, buffer, byte_offset, byte_length);
+  }
 }


@@ -8869,7 +8871,6 @@
     CallRuntime* expr) {
   ZoneList<Expression*>* arguments = expr->arguments();

-  NoObservableSideEffectsScope scope(this);
   static const int kObjectArg = 0;
   static const int kArrayIdArg = 1;
   static const int kBufferArg = 2;
@@ -8924,6 +8925,7 @@
   CHECK_ALIVE(VisitForValue(arguments->at(kByteLengthArg)));
   HValue* byte_length = Pop();

+  NoObservableSideEffectsScope scope(this);
   IfBuilder byte_offset_smi(this);

   if (!is_zero_byte_offset) {
=======================================
--- /branches/bleeding_edge/src/runtime.cc      Fri May 30 14:27:19 2014 UTC
+++ /branches/bleeding_edge/src/runtime.cc      Fri May 30 17:04:40 2014 UTC
@@ -3027,7 +3027,7 @@

   CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, value, 1);
-  ASSERT(fun->should_have_prototype());
+  RUNTIME_ASSERT(fun->should_have_prototype());
   Accessors::FunctionSetPrototype(fun, value);
   return args[0];  // return TOS
 }

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