Source/WTF/wtf/PlatformCallingConventions.h

/*
 * Copyright (C) 2006-2020 Apple Inc. All rights reserved.
 * Copyright (C) 2007-2009 Torch Mobile, Inc.
 * Copyright (C) 2010, 2011 Research In Motion Limited. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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 with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#ifndef WTF_PLATFORM_GUARD_AGAINST_INDIRECT_INCLUSION
#error "Please #include <wtf/Platform.h> instead of this file directly."
#endif

/* Macros for specifing specific calling conventions. */


#if CPU(X86) && COMPILER(MSVC)
#define JSC_HOST_CALL __fastcall
#elif CPU(X86) && COMPILER(GCC_COMPATIBLE)
#define JSC_HOST_CALL __attribute__ ((fastcall))
#else
#define JSC_HOST_CALL
#endif

#if CPU(X86) && OS(WINDOWS)
#define CALLING_CONVENTION_IS_STDCALL 1
#ifndef CDECL
#if COMPILER(MSVC)
#define CDECL __cdecl
#else
#define CDECL __attribute__ ((__cdecl))
#endif
#endif
#else
#define CALLING_CONVENTION_IS_STDCALL 0
#endif

#if CPU(X86)
#define WTF_COMPILER_SUPPORTS_FASTCALL_CALLING_CONVENTION 1
#ifndef FASTCALL
#if COMPILER(MSVC)
#define FASTCALL __fastcall
#else
#define FASTCALL  __attribute__ ((fastcall))
#endif
#endif
#else
#define WTF_COMPILER_SUPPORTS_FASTCALL_CALLING_CONVENTION 0
#endif

#if ENABLE(JIT) && CALLING_CONVENTION_IS_STDCALL
#define JIT_OPERATION CDECL
#else
#define JIT_OPERATION
#endif