Add a level of indirection to exception handler addresses.

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 be85fa15be8d3888bf27b28f0c2faaf788eccb12..bd3d2e697486b3486a2131aa6801556e183133c4 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -3712,7 +3712,7 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
   // r3: argc
   // [sp+0]: argv
 
-  Label invoke, exit;
+  Label invoke, handler_entry, exit;
 
   // Called from C, so do not pop argc and args on exit (preserve sp)
   // No need to save register-passed args
@@ -3775,23 +3775,26 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
   __ bind(&cont);
   __ push(ip);
 
-  // Call a faked try-block that does the invoke.
-  __ bl(&invoke);
-
-  // Caught exception: Store result (exception) in the pending
-  // exception field in the JSEnv and return a failure sentinel.
-  // Coming in here the fp will be invalid because the PushTryHandler below
-  // sets it to 0 to signal the existence of the JSEntry frame.
+  // Jump to a faked try block that does the invoke, with a faked catch
+  // block that sets the pending exception.
+  __ jmp(&invoke);
+  __ bind(&handler_entry);
+  handler_offset_ = handler_entry.pos();
+  // Caught exception: Store result (exception) in the pending exception
+  // field in the JSEnv and return a failure sentinel.  Coming in here the
+  // fp will be invalid because the PushTryHandler below sets it to 0 to
+  // signal the existence of the JSEntry frame.
   __ mov(ip, Operand(ExternalReference(Isolate::kPendingExceptionAddress,
                                        isolate)));
   __ str(r0, MemOperand(ip));
   __ mov(r0, Operand(reinterpret_cast<int32_t>(Failure::Exception())));
   __ b(&exit);
 
-  // Invoke: Link this frame into the handler chain.
+  // Invoke: Link this frame into the handler chain.  There's only one
+  // handler block in this code object, so its index is 0.
   __ bind(&invoke);
   // Must preserve r0-r4, r5-r7 are available.
-  __ PushTryHandler(IN_JS_ENTRY, JS_ENTRY_HANDLER);
+  __ PushTryHandler(IN_JS_ENTRY, JS_ENTRY_HANDLER, 0);
   // If an exception not caught by another handler occurs, this handler
   // returns control to the code after the bl(&invoke) above, which
   // restores all kCalleeSaved registers (including cp and fp) to their
@@ -4900,7 +4903,7 @@ void RegExpConstructResultStub::Generate(MacroAssembler* masm) {
 }
 
 
-void CallFunctionStub::FinishCode(Code* code) {
+void CallFunctionStub::FinishCode(Handle<Code> code) {
   code->set_has_function_cache(false);
 }