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Filename : ffitarget-x86_64.h
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/* -----------------------------------------------------------------*-C-*-
   ffitarget.h - Copyright (c) 2012, 2014, 2018  Anthony Green
                 Copyright (c) 1996-2003, 2010  Red Hat, Inc.
                 Copyright (C) 2008  Free Software Foundation, Inc.

   Target configuration macros for x86 and x86-64.

   Permission is hereby granted, free of charge, to any person obtaining
   a copy of this software and associated documentation files (the
   ``Software''), to deal in the Software without restriction, including
   without limitation the rights to use, copy, modify, merge, publish,
   distribute, sublicense, and/or sell copies of the Software, and to
   permit persons to whom the Software is furnished to do so, subject to
   the following conditions:

   The above copyright notice and this permission notice shall be included
   in all copies or substantial portions of the Software.

   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   DEALINGS IN THE SOFTWARE.

   ----------------------------------------------------------------------- */

#ifndef LIBFFI_TARGET_H
#define LIBFFI_TARGET_H

#ifndef LIBFFI_H
#error "Please do not include ffitarget.h directly into your source.  Use ffi.h instead."
#endif

/* ---- System specific configurations ----------------------------------- */

/* For code common to all platforms on x86 and x86_64. */
#define X86_ANY

#if defined (X86_64) && defined (__i386__)
#undef X86_64
#define X86
#endif

#ifdef X86_WIN64
#define FFI_SIZEOF_ARG 8
#define USE_BUILTIN_FFS 0 /* not yet implemented in mingw-64 */
#endif

#define FFI_TARGET_SPECIFIC_STACK_SPACE_ALLOCATION
#ifndef _MSC_VER
#define FFI_TARGET_HAS_COMPLEX_TYPE
#endif

/* ---- Generic type definitions ----------------------------------------- */

#ifndef LIBFFI_ASM
#ifdef X86_WIN64
#ifdef _MSC_VER
typedef unsigned __int64       ffi_arg;
typedef __int64                ffi_sarg;
#else
typedef unsigned long long     ffi_arg;
typedef long long              ffi_sarg;
#endif
#else
#if defined __x86_64__ && defined __ILP32__
#define FFI_SIZEOF_ARG 8
#define FFI_SIZEOF_JAVA_RAW  4
typedef unsigned long long     ffi_arg;
typedef long long              ffi_sarg;
#else
typedef unsigned long          ffi_arg;
typedef signed long            ffi_sarg;
#endif
#endif

typedef enum ffi_abi {
#if defined(X86_WIN64)
  FFI_FIRST_ABI = 0,
  FFI_WIN64,            /* sizeof(long double) == 8  - microsoft compilers */
  FFI_GNUW64,           /* sizeof(long double) == 16 - GNU compilers */
  FFI_LAST_ABI,
#ifdef __GNUC__
  FFI_DEFAULT_ABI = FFI_GNUW64
#else  
  FFI_DEFAULT_ABI = FFI_WIN64
#endif  

#elif defined(X86_64) || (defined (__x86_64__) && defined (X86_DARWIN))
  FFI_FIRST_ABI = 1,
  FFI_UNIX64,
  FFI_WIN64,
  FFI_EFI64 = FFI_WIN64,
  FFI_GNUW64,
  FFI_LAST_ABI,
  FFI_DEFAULT_ABI = FFI_UNIX64

#elif defined(X86_WIN32)
  FFI_FIRST_ABI = 0,
  FFI_SYSV      = 1,
  FFI_STDCALL   = 2,
  FFI_THISCALL  = 3,
  FFI_FASTCALL  = 4,
  FFI_MS_CDECL  = 5,
  FFI_PASCAL    = 6,
  FFI_REGISTER  = 7,
  FFI_LAST_ABI,
  FFI_DEFAULT_ABI = FFI_MS_CDECL
#else
  FFI_FIRST_ABI = 0,
  FFI_SYSV      = 1,
  FFI_THISCALL  = 3,
  FFI_FASTCALL  = 4,
  FFI_STDCALL   = 5,
  FFI_PASCAL    = 6,
  FFI_REGISTER  = 7,
  FFI_MS_CDECL  = 8,
  FFI_LAST_ABI,
  FFI_DEFAULT_ABI = FFI_SYSV
#endif
} ffi_abi;
#endif

/* ---- Definitions for closures ----------------------------------------- */

#define FFI_CLOSURES 1
#define FFI_GO_CLOSURES 1

#define FFI_TYPE_SMALL_STRUCT_1B (FFI_TYPE_LAST + 1)
#define FFI_TYPE_SMALL_STRUCT_2B (FFI_TYPE_LAST + 2)
#define FFI_TYPE_SMALL_STRUCT_4B (FFI_TYPE_LAST + 3)
#define FFI_TYPE_MS_STRUCT       (FFI_TYPE_LAST + 4)

#if defined (X86_64) || defined(X86_WIN64) \
    || (defined (__x86_64__) && defined (X86_DARWIN))
/* 4 bytes of ENDBR64 + 7 bytes of LEA + 6 bytes of JMP + 7 bytes of NOP
   + 8 bytes of pointer.  */
# define FFI_TRAMPOLINE_SIZE 32
# define FFI_NATIVE_RAW_API 0
#else
/* 4 bytes of ENDBR32 + 5 bytes of MOV + 5 bytes of JMP + 2 unused
   bytes.  */
# define FFI_TRAMPOLINE_SIZE 16
# define FFI_NATIVE_RAW_API 1  /* x86 has native raw api support */
#endif

#if !defined(GENERATE_LIBFFI_MAP) && defined(__CET__)
# include <cet.h>
# if (__CET__ & 1) != 0
#   define ENDBR_PRESENT
# endif
# define _CET_NOTRACK notrack
#else
# define _CET_ENDBR
# define _CET_NOTRACK
#endif

#endif