Skip samples where top function's stack frame is not setup properly

src/profile-generator.h

Index: src/profile-generator.h
diff --git a/src/profile-generator.h b/src/profile-generator.h
index 761291e1215d8f4e0b16609220ab6af293280890..44969bc3ba2ab675c4294d49a74155348ff94f29 100644
--- a/src/profile-generator.h
+++ b/src/profile-generator.h
@@ -112,6 +112,15 @@ class CodeEntry {
 
   INLINE(static bool is_js_function_tag(Logger::LogEventsAndTags tag));
 
+  INLINE(int frame_setup_offset() const) { return frame_setup_offset_; }
+  INLINE(void set_frame_setup_offset(int offset)) {
+    frame_setup_offset_ = offset;
+  }
+  INLINE(int frame_destroy_offset() const) { return frame_destroy_offset_; }
+  INLINE(void set_frame_destroy_offset(int offset)) {
+    frame_destroy_offset_ = offset;
+  }
+
   void CopyData(const CodeEntry& source);
   uint32_t GetCallUid() const;
   bool IsSameAs(CodeEntry* entry) const;
@@ -126,6 +135,8 @@ class CodeEntry {
   int line_number_;
   int shared_id_;
   int security_token_id_;
+  int frame_setup_offset_;
+  int frame_destroy_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(CodeEntry);
 };
@@ -251,7 +262,7 @@ class CodeMap {
   CodeMap() : next_shared_id_(1) { }
   void AddCode(Address addr, CodeEntry* entry, unsigned size);
   void MoveCode(Address from, Address to);
-  CodeEntry* FindEntry(Address addr);
+  CodeEntry* FindEntry(Address addr, Address* start = NULL);
   int GetSharedId(Address addr);
 
   void Print();