Optimized String.prototype.match.
Improved the stack information in profiles.
Fixed bug in ARM port making it possible to compile the runtime system for thumb mode again.
Implemented a number of optimizations in the code generator.
Fixed a number of memory leaks in tests.
Fixed crash bug in connection with script source code and external strings.
git-svn-id: http://v8.googlecode.com/svn/trunk@1642 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/frames.cc b/src/frames.cc
index 763ff48..a7da25a 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -230,6 +230,25 @@
bool SafeStackFrameIterator::IsValidCaller(StackFrame* frame) {
StackFrame::State state;
+ if (frame->is_entry() || frame->is_entry_construct()) {
+ // See EntryFrame::GetCallerState. It computes the caller FP address
+ // and calls ExitFrame::GetStateForFramePointer on it. We need to be
+ // sure that caller FP address is valid.
+ Address caller_fp = Memory::Address_at(
+ frame->fp() + EntryFrameConstants::kCallerFPOffset);
+ if (!IsValidStackAddress(caller_fp)) {
+ return false;
+ }
+ } else if (frame->is_arguments_adaptor()) {
+ // See ArgumentsAdaptorFrame::GetCallerStackPointer. It assumes that
+ // the number of arguments is stored on stack as Smi. We need to check
+ // that it really an Smi.
+ Object* number_of_args = reinterpret_cast<ArgumentsAdaptorFrame*>(frame)->
+ GetExpression(0);
+ if (!number_of_args->IsSmi()) {
+ return false;
+ }
+ }
frame->ComputeCallerState(&state);
return IsValidStackAddress(state.sp) && IsValidStackAddress(state.fp) &&
iterator_.SingletonFor(frame->GetCallerState(&state)) != NULL;