276785a8ff
Add a config header file for the most conservative case of a totally unknown compiler. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
212 lines
6.3 KiB
C
212 lines
6.3 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2007-2016 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* compiler.h
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*
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* Compiler-specific macros for NASM. Feel free to add support for
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* other compilers in here.
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*
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* This header file should be included before any other header.
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*/
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#ifndef NASM_COMPILER_H
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#define NASM_COMPILER_H 1
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/*
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* At least DJGPP and Cygwin have broken header files if __STRICT_ANSI__
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* is defined.
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*/
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#ifdef __GNUC__
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# undef __STRICT_ANSI__
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#endif
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/* On Microsoft platforms we support multibyte character sets in filenames */
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#define _MBCS 1
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#ifdef HAVE_CONFIG_H
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# include "config/config.h"
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#elif defined(_MSC_VER) && (_MSC_VER >= 1310)
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# include "config/msvc.h"
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#else
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# include "config/unknown.h"
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#endif /* Configuration file */
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/* This is required to get the standard <inttypes.h> macros when compiling
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with a C++ compiler. This must be defined *before* <inttypes.h> is
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included, directly or indirectly. */
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#define __STDC_CONSTANT_MACROS 1
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#define __STDC_LIMIT_MACROS 1
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#define __STDC_FORMAT_MACROS 1
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#ifdef HAVE_INTTYPES_H
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# include <inttypes.h>
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#else
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# include "nasmint.h"
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#endif
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#include <stddef.h>
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#include <stdarg.h>
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#include <stdio.h>
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/* Some versions of MSVC have these only with underscores in front */
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#ifndef HAVE_SNPRINTF
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# ifdef HAVE__SNPRINTF
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# define snprintf _snprintf
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# else
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int snprintf(char *, size_t, const char *, ...);
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# endif
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#endif
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#ifndef HAVE_VSNPRINTF
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# ifdef HAVE__VSNPRINTF
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# define vsnprintf _vsnprintf
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# else
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int vsnprintf(char *, size_t, const char *, va_list);
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# endif
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#endif
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#if !defined(HAVE_STRLCPY) || !defined(HAVE_DECL_STRLCPY)
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size_t strlcpy(char *, const char *, size_t);
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#endif
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#ifndef __cplusplus /* C++ has false, true, bool as keywords */
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# ifdef HAVE_STDBOOL_H
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# include <stdbool.h>
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# elif defined(HAVE__BOOL)
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# typedef _Bool bool
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# define false 0
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# define true 1
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# else
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/* This is sort of dangerous, since casts will behave different than
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casting to the standard boolean type. Always use !!, not (bool). */
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typedef enum bool { false, true } bool;
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# endif
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#endif
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/* Provide a substitute for offsetof() if we don't have one. This
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variant works on most (but not *all*) systems... */
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#ifndef offsetof
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# define offsetof(t,m) ((size_t)&(((t *)0)->m))
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#endif
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/* The container_of construct: if p is a pointer to member m of
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container class c, then return a pointer to the container of which
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*p is a member. */
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#ifndef container_of
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# define container_of(p, c, m) ((c *)((char *)(p) - offsetof(c,m)))
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#endif
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/* Some misguided platforms hide the defs for these */
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#if defined(HAVE_STRCASECMP) && !defined(HAVE_DECL_STRCASECMP)
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int strcasecmp(const char *, const char *);
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#endif
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#if defined(HAVE_STRICMP) && !defined(HAVE_DECL_STRICMP)
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int stricmp(const char *, const char *);
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#endif
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#if defined(HAVE_STRNCASECMP) && !defined(HAVE_DECL_STRNCASECMP)
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int strncasecmp(const char *, const char *, size_t);
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#endif
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#if defined(HAVE_STRNICMP) && !defined(HAVE_DECL_STRNICMP)
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int strnicmp(const char *, const char *, size_t);
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#endif
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#if defined(HAVE_STRSEP) && !defined(HAVE_DECL_STRSEP)
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char *strsep(char **, const char *);
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#endif
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/*
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* Define this to 1 for faster performance if this is a littleendian
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* platform which can do unaligned memory references. It is safe
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* to leave it defined to 0 even if that is true.
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*/
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#if defined(__386__) || defined(__i386__) || defined(__x86_64__)
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# define X86_MEMORY 1
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# ifndef WORDS_LITTLEENDIAN
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# define WORDS_LITTLEENDIAN 1
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# endif
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#else
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# define X86_MEMORY 0
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#endif
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/*
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* Hints to the compiler that a particular branch of code is more or
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* less likely to be taken.
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*/
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#if defined(__GNUC__) && __GNUC__ >= 3
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# define likely(x) __builtin_expect(!!(x), 1)
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# define unlikely(x) __builtin_expect(!!(x), 0)
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#else
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# define likely(x) (!!(x))
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# define unlikely(x) (!!(x))
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#endif
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/*
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* Hints about malloc-like functions that never return NULL
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*/
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#if defined(__GNUC__) && __GNUC__ >= 4 /* ? */
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# define never_null __attribute__((returns_nonnull))
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# define safe_alloc never_null __attribute__((malloc))
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# define safe_malloc(s) safe_alloc __attribute__((alloc_size(s)))
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# define safe_malloc2(s1,s2) safe_alloc __attribute__((alloc_size(s1,s2)))
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# define safe_realloc(s) never_null __attribute__((alloc_size(s)))
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#else
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# define never_null
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# define safe_alloc
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# define safe_malloc(s)
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# define safe_malloc2(s1,s2)
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# define safe_realloc(s)
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#endif
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/*
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* How to tell the compiler that a function doesn't return
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*/
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#ifdef __GNUC__
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# define no_return void __attribute__((noreturn))
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#else
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# define no_return void
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#endif
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/*
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* How to tell the compiler that a function takes a printf-like string
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*/
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#ifdef __GNUC__
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# define printf_func(fmt, list) __attribute__((format(printf, fmt, list)))
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#else
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# define printf_func(fmt, list)
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#endif
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#endif /* NASM_COMPILER_H */
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