Initial support for count-based profiling

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index c65f5bdf84ac33eef217e6d727b4207b2bf123f6..ee381e463ae0de3e2a7198b562a38866cf912b43 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -3439,6 +3439,11 @@ void StackCheckStub::Generate(MacroAssembler* masm) {
 }
 
 
+void InterruptStub::Generate(MacroAssembler* masm) {
+  __ TailCallRuntime(Runtime::kInterrupt, 0, 1);
+}
+
+
 void MathPowStub::Generate(MacroAssembler* masm) {
   CpuFeatures::Scope vfp3_scope(VFP3);
   const Register base = r1;