tcc-stupidos/win32/include/_mingw.h

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/*
* _mingw.h
*
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* This file is for TinyCC and not part of the Mingw32 package.
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*
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAIMED. This includes but is not limited to warranties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#ifndef __MINGW_H
#define __MINGW_H
/* some winapi files define these before including _mingw.h --> */
#undef __cdecl
#undef _X86_
#undef WIN32
/* <-- */
#include <stddef.h>
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#include <stdarg.h>
#define __int8 char
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#define __int16 short
#define __int32 int
#define __int64 long long
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#define _HAVE_INT64
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#define __cdecl
#define __declspec(x) __attribute__((x))
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#define __unaligned __attribute__((packed))
#define __fastcall __attribute__((fastcall))
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#define __MSVCRT__ 1
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#undef _MSVCRT_
#define __MINGW_IMPORT extern __declspec(dllimport)
#define __MINGW_ATTRIB_NORETURN __declspec(noreturn)
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#define __MINGW_ATTRIB_CONST
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#define __MINGW_ATTRIB_DEPRECATED
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#define __MINGW_ATTRIB_MALLOC
#define __MINGW_ATTRIB_PURE
#define __MINGW_ATTRIB_NONNULL(arg)
#define __MINGW_NOTHROW
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#define __GNUC_VA_LIST
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#define _CRTIMP extern
#define __CRT_INLINE static __inline__
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#define _CRT_ALIGN(x) __attribute__((aligned(x)))
#define DECLSPEC_ALIGN(x) __attribute__((aligned(x)))
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#define _CRT_PACKING 8
#define __CRT_UNALIGNED
#define _CONST_RETURN
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#ifndef _TRUNCATE
#define _TRUNCATE ((size_t)-1)
#endif
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#define __CRT_STRINGIZE(_Value) #_Value
#define _CRT_STRINGIZE(_Value) __CRT_STRINGIZE(_Value)
#define __CRT_WIDE(_String) L ## _String
#define _CRT_WIDE(_String) __CRT_WIDE(_String)
#ifdef _WIN64
#define __stdcall
#define _AMD64_ 1
#define __x86_64 1
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#define _M_X64 100 /* Visual Studio */
#define _M_AMD64 100 /* Visual Studio */
#define USE_MINGW_SETJMP_TWO_ARGS
#define mingw_getsp tinyc_getbp
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#else
#define __stdcall __attribute__((__stdcall__))
#define _X86_ 1
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#define _M_IX86 300 /* Visual Studio */
win32: 32 bit: allow 64 bit time via __MINGW_USE_VC2005_COMPAT Before VC2005, the time macros (time, time_t, localtime, etc) were 32 bit on 32 bit platforms, but they became 64 in VC2005. This works even on XP 32 (_time64 etc do exist in XP32 - and in tcc). However, tv_sec in struct timeval (which for msvc is in winsock2.h) remains 32 bit to this day on 32 bit platforms, and dlls which were not recompiled remain with time 32, possibly at the API boundary. Due to these, and maybe more, mingw w64 decided to keep the time macros 32 bit on 32 bit platforms, with __MINGW_USE_VC2005_COMPAT override (which does nothing in mingw w64 except time -> time64). It's not perfect, but it allows some existing code to easily switch to 64 bit time without redefining time etc, e.g. used by libressl: https://github.com/libressl/portable/blob/master/README.mingw.md Before, it was impossible to enable the 64 bit time macros in tcc 32. This commit adds support for __MINGW_USE_VC2005_COMPAT in tcc as well, which, like in mingw w64, affects only the 32->64 time macros, and is a cheap way to get 64 bit time in existing code in some 32 bit apps. The additional #ifndef _USE_32BIT_TIME_T is unrelated to the override, and avoids a warning (and nothing else) when the code explicitly defines it - which is allowed in MSVC, and also guarded in mingw w64. Relevant current quote from the libressl link above: ------- >8 --------- Why the -D__MINGW_USE_VC2005_COMPAT flag on 32-bit systems? An ABI change introduced with Microsoft Visual C++ 2005 (also known as Visual C++ 8.0) switched time_t from 32-bit to 64-bit. It is important to build LibreSSL with 64-bit time_t whenever possible, because 32-bit time_t is unable to represent times past 2038 (this is commonly known as the Y2K38 problem). If LibreSSL is built with 32-bit time_t, when verifying a certificate whose expiry date is set past 19 January 2038, it will be unable to tell if the certificate has expired or not, and thus take the safe stance and reject it. In order to avoid this, you need to build LibreSSL (and everything that links with it) with the -D__MINGW_USE_VC2005_COMPAT flag. This tells MinGW-w64 to use the new ABI. 64-bit systems always have a 64-bit time_t and are not affected by this problem.
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#ifndef __MINGW_USE_VC2005_COMPAT /* time became 64, but not timeval.tv_sec */
# ifndef _USE_32BIT_TIME_T
# define _USE_32BIT_TIME_T
# endif
#endif
#endif
/* in stddef.h */
#define _SIZE_T_DEFINED
#define _SSIZE_T_DEFINED
#define _PTRDIFF_T_DEFINED
#define _WCHAR_T_DEFINED
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#define _UINTPTR_T_DEFINED
#define _INTPTR_T_DEFINED
#define _INTEGRAL_MAX_BITS 64
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#ifndef _TIME32_T_DEFINED
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#define _TIME32_T_DEFINED
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typedef long __time32_t;
#endif
#ifndef _TIME64_T_DEFINED
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#define _TIME64_T_DEFINED
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typedef long long __time64_t;
#endif
#ifndef _TIME_T_DEFINED
#define _TIME_T_DEFINED
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#ifdef _USE_32BIT_TIME_T
typedef __time32_t time_t;
#else
typedef __time64_t time_t;
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#endif
#endif
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#ifndef _WCTYPE_T_DEFINED
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#define _WCTYPE_T_DEFINED
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typedef wchar_t wctype_t;
#endif
#ifndef _WINT_T
#define _WINT_T
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typedef __WINT_TYPE__ wint_t;
#endif
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typedef int errno_t;
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#define _ERRCODE_DEFINED
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typedef struct threadlocaleinfostruct *pthreadlocinfo;
typedef struct threadmbcinfostruct *pthreadmbcinfo;
typedef struct localeinfo_struct _locale_tstruct,*_locale_t;
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/* for winapi */
#define _ANONYMOUS_UNION
#define _ANONYMOUS_STRUCT
#define DECLSPEC_NORETURN __declspec(noreturn)
#define DECLARE_STDCALL_P(type) __stdcall type
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#define NOSERVICE 1
#define NOMCX 1
#define NOIME 1
#define __INTRIN_H_
#ifndef DUMMYUNIONNAME
# define DUMMYUNIONNAME
# define DUMMYUNIONNAME1
# define DUMMYUNIONNAME2
# define DUMMYUNIONNAME3
# define DUMMYUNIONNAME4
# define DUMMYUNIONNAME5
#endif
#ifndef DUMMYSTRUCTNAME
# define DUMMYSTRUCTNAME
#endif
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#ifndef WINVER
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# define WINVER 0x0502
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#endif
#ifndef _WIN32_WINNT
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# define _WIN32_WINNT 0x502
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#endif
#define __C89_NAMELESS
#define __MINGW_EXTENSION
#define WINAPI_FAMILY_PARTITION(X) 1
#define MINGW_HAS_SECURE_API
#define WIN32 1
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#endif /* __MINGW_H */