Version 3.24.25 (based on bleeding_edge revision r18864)
Performance and stability improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@18865 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 48b5999..a935e12 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -5382,6 +5382,122 @@
}
+void CallApiFunctionStub::Generate(MacroAssembler* masm) {
+ // ----------- S t a t e -------------
+ // -- eax : callee
+ // -- ebx : call_data
+ // -- ecx : holder
+ // -- edx : api_function_address
+ // -- esi : context
+ // --
+ // -- esp[0] : return address
+ // -- esp[4] : last argument
+ // -- ...
+ // -- esp[argc * 4] : first argument
+ // -- esp[(argc + 1) * 4] : receiver
+ // -----------------------------------
+
+ Register callee = eax;
+ Register call_data = ebx;
+ Register holder = ecx;
+ Register api_function_address = edx;
+ Register return_address = edi;
+ Register context = esi;
+
+ int argc = ArgumentBits::decode(bit_field_);
+ bool restore_context = RestoreContextBits::decode(bit_field_);
+ bool call_data_undefined = CallDataUndefinedBits::decode(bit_field_);
+
+ typedef FunctionCallbackArguments FCA;
+
+ STATIC_ASSERT(FCA::kContextSaveIndex == 6);
+ STATIC_ASSERT(FCA::kCalleeIndex == 5);
+ STATIC_ASSERT(FCA::kDataIndex == 4);
+ STATIC_ASSERT(FCA::kReturnValueOffset == 3);
+ STATIC_ASSERT(FCA::kReturnValueDefaultValueIndex == 2);
+ STATIC_ASSERT(FCA::kIsolateIndex == 1);
+ STATIC_ASSERT(FCA::kHolderIndex == 0);
+ STATIC_ASSERT(FCA::kArgsLength == 7);
+
+ Isolate* isolate = masm->isolate();
+
+ __ pop(return_address);
+
+ // context save
+ __ push(context);
+ // load context from callee
+ __ mov(context, FieldOperand(callee, JSFunction::kContextOffset));
+
+ // callee
+ __ push(callee);
+
+ // call data
+ __ push(call_data);
+
+ Register scratch = call_data;
+ if (!call_data_undefined) {
+ // return value
+ __ push(Immediate(isolate->factory()->undefined_value()));
+ // return value default
+ __ push(Immediate(isolate->factory()->undefined_value()));
+ } else {
+ // return value
+ __ push(scratch);
+ // return value default
+ __ push(scratch);
+ }
+ // isolate
+ __ push(Immediate(reinterpret_cast<int>(isolate)));
+ // holder
+ __ push(holder);
+
+ __ mov(scratch, esp);
+
+ // return address
+ __ push(return_address);
+
+ // API function gets reference to the v8::Arguments. If CPU profiler
+ // is enabled wrapper function will be called and we need to pass
+ // address of the callback as additional parameter, always allocate
+ // space for it.
+ const int kApiArgc = 1 + 1;
+
+ // Allocate the v8::Arguments structure in the arguments' space since
+ // it's not controlled by GC.
+ const int kApiStackSpace = 4;
+
+ __ PrepareCallApiFunction(kApiArgc + kApiStackSpace);
+
+ // FunctionCallbackInfo::implicit_args_.
+ __ mov(ApiParameterOperand(2), scratch);
+ __ add(scratch, Immediate((argc + FCA::kArgsLength - 1) * kPointerSize));
+ // FunctionCallbackInfo::values_.
+ __ mov(ApiParameterOperand(3), scratch);
+ // FunctionCallbackInfo::length_.
+ __ Set(ApiParameterOperand(4), Immediate(argc));
+ // FunctionCallbackInfo::is_construct_call_.
+ __ Set(ApiParameterOperand(5), Immediate(0));
+
+ // v8::InvocationCallback's argument.
+ __ lea(scratch, ApiParameterOperand(2));
+ __ mov(ApiParameterOperand(0), scratch);
+
+ Address thunk_address = FUNCTION_ADDR(&InvokeFunctionCallback);
+
+ Operand context_restore_operand(ebp,
+ (2 + FCA::kContextSaveIndex) * kPointerSize);
+ Operand return_value_operand(ebp,
+ (2 + FCA::kReturnValueOffset) * kPointerSize);
+ __ CallApiFunctionAndReturn(api_function_address,
+ thunk_address,
+ ApiParameterOperand(1),
+ argc + FCA::kArgsLength + 1,
+ return_value_operand,
+ restore_context ?
+ &context_restore_operand : NULL);
+}
+
+
#undef __
} } // namespace v8::internal