Direct call API functions.

src/ia32/code-stubs-ia32.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3049 matching lines @@
 
 void ApiGetterEntryStub::Generate(MacroAssembler* masm) {
   __ PrepareCallApiFunction(kStackSpace, kArgc);
   STATIC_ASSERT(kArgc == 2);
   __ mov(ApiParameterOperand(0), ebx);  // name.
   __ mov(ApiParameterOperand(1), eax);  // arguments pointer.
   __ CallApiFunctionAndReturn(fun(), kArgc);
 }
 
 
+void ApiCallEntryStub::Generate(MacroAssembler* masm) {
+  __ PrepareCallApiFunction(kStackSpace, kArgc);
+  STATIC_ASSERT(kArgc == 5);
+
+  // Allocate the v8::Arguments structure in the arguments' space since
+  // it's not controlled by GC.
+  __ mov(ApiParameterOperand(1), eax);  // v8::Arguments::implicit_args_.
+  __ mov(ApiParameterOperand(2), ebx);  // v8::Arguments::values_.
+  __ mov(ApiParameterOperand(3), edx);  // v8::Arguments::length_.
+  // v8::Arguments::is_construct_call_.
+  __ mov(ApiParameterOperand(4), Immediate(0));
+
+  // v8::InvocationCallback's argument.
+  __ lea(eax, ApiParameterOperand(1));
+  __ mov(ApiParameterOperand(0), eax);
+
+  __ CallApiFunctionAndReturn(fun(), kArgc);
+}
+
+
 void CEntryStub::GenerateCore(MacroAssembler* masm,
                               Label* throw_normal_exception,
                               Label* throw_termination_exception,
                               Label* throw_out_of_memory_exception,
                               bool do_gc,
                               bool always_allocate_scope,
                               int /* alignment_skew */) {
   // eax: result parameter for PerformGC, if any
   // ebx: pointer to C function  (C callee-saved)
   // ebp: frame pointer  (restored after C call)
@@ skipping 1499 matching lines @@
   // tagged as a small integer.
   __ bind(&runtime);
   __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32