Landing for Zaheer Ahmad.

src/arm/code-stubs-arm.h

Index: src/arm/code-stubs-arm.h
diff --git a/src/arm/code-stubs-arm.h b/src/arm/code-stubs-arm.h
index 0b1c59e19dc107156694ad7ed22d67be9165182d..bf7d63548733b69a06ed102dea5f7ddc01b3d16c 100644
--- a/src/arm/code-stubs-arm.h
+++ b/src/arm/code-stubs-arm.h
@@ -571,6 +571,24 @@ class RegExpCEntryStub: public CodeStub {
 };
 
 
+// Trampoline stub to call into native code. To call safely into native code
+// in the presence of compacting GC (which can move code objects) we need to
+// keep the code which called into native pinned in the memory. Currently the
+// simplest approach is to generate such stub early enough so it can never be
+// moved by GC
+class DirectCEntryStub: public CodeStub {
+ public:
+  DirectCEntryStub() {}
+  void Generate(MacroAssembler* masm);
+  void GenerateCall(MacroAssembler* masm, ApiFunction *function);
+
+ private:
+  Major MajorKey() { return DirectCEntry; }
+  int MinorKey() { return 0; }
+  const char* GetName() { return "DirectCEntryStub"; }
+};
+
+
 // Generate code the to load an element from a pixel array. The receiver is
 // assumed to not be a smi and to have elements, the caller must guarantee this
 // precondition. If the receiver does not have elements that are pixel arrays,