jit/HostCallReturnValue.h

   1 /*
   2  * Copyright (C) 2012 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef HostCallReturnValue_h
  27 #define HostCallReturnValue_h
  28
  29 #include "JSCJSValue.h"
  30 #include "MacroAssemblerCodeRef.h"
  31 #include <wtf/Platform.h>
  32
  33 #if ENABLE(JIT)
  34
  35 #if CALLING_CONVENTION_IS_STDCALL
  36 #define HOST_CALL_RETURN_VALUE_OPTION CDECL
  37 #else
  38 #define HOST_CALL_RETURN_VALUE_OPTION
  39 #endif
  40
  41 namespace JSC {
  42
  43 extern "C" EncodedJSValue HOST_CALL_RETURN_VALUE_OPTION getHostCallReturnValue() REFERENCED_FROM_ASM WTF_INTERNAL;
  44
  45 #if COMPILER(GCC)
  46
  47 // This is a public declaration only to convince CLANG not to elide it.
  48 extern "C" EncodedJSValue HOST_CALL_RETURN_VALUE_OPTION getHostCallReturnValueWithExecState(ExecState*) REFERENCED_FROM_ASM WTF_INTERNAL;
  49
  50 inline void initializeHostCallReturnValue()
  51 {
  52     getHostCallReturnValueWithExecState(0);
  53 }
  54
  55 #else // COMPILER(GCC)
  56
  57 inline void initializeHostCallReturnValue() { }
  58
  59 #endif // COMPILER(GCC)
  60
  61 } // namespace JSC
  62
  63 #endif // ENABLE(JIT)
  64
  65 #endif // HostCallReturnValue_h