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nasm/compiler.h

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Macroize any compiler-specific code; macros defined in "compiler.h" Move anything compiler-specific to "compiler.h". There was an unguarded use of __attribute__(()) in outmacho.c; also require gcc 4+ for __builtin_ctlz(). Speed up the open-coded version, too.
2007-04-14 03:58:42 +08:00
/* ----------------------------------------------------------------------- *
*
* Copyright 2007 The NASM Authors - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
regularized spelling of license to match name of LICENSE file
2007-12-29 22:44:23 +08:00
* it under the terms of the license given in the file "LICENSE"
Macroize any compiler-specific code; macros defined in "compiler.h" Move anything compiler-specific to "compiler.h". There was an unguarded use of __attribute__(()) in outmacho.c; also require gcc 4+ for __builtin_ctlz(). Speed up the open-coded version, too.
2007-04-14 03:58:42 +08:00
* distributed in the NASM archive.
*
* ----------------------------------------------------------------------- */
/*
* compiler.h
*
* Compiler-specific macros for NASM. Feel free to add support for
* other compilers in here.
Portability fixes Concentrate compiler dependencies to compiler.h; make sure compiler.h is included first in every .c file (since some prototypes may depend on the presence of feature request macros.) Actually use the conditional inclusion of various functions (totally broken in previous releases.)
2007-10-03 12:53:51 +08:00
*
* This header file should be included before any other header.
Macroize any compiler-specific code; macros defined in "compiler.h" Move anything compiler-specific to "compiler.h". There was an unguarded use of __attribute__(()) in outmacho.c; also require gcc 4+ for __builtin_ctlz(). Speed up the open-coded version, too.
2007-04-14 03:58:42 +08:00
*/
Portability fixes Concentrate compiler dependencies to compiler.h; make sure compiler.h is included first in every .c file (since some prototypes may depend on the presence of feature request macros.) Actually use the conditional inclusion of various functions (totally broken in previous releases.)
2007-10-03 12:53:51 +08:00
#ifndef NASM_COMPILER_H
#define NASM_COMPILER_H 1
AIf we have config.h, we should actually include it!! Apparently configure was generating config.h, and nothing ever actually included it. Include it in nasm.h as well as compiler.h, and in rdoff/rdlar.h which uses these macros. There appears to be no use of HAVE_* macros in any file that doesn't have nasm.h included; in fact, so far the only use has been in rdoff/rdlar.h.
2007-04-14 04:06:41 +08:00
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
Macroize any compiler-specific code; macros defined in "compiler.h" Move anything compiler-specific to "compiler.h". There was an unguarded use of __attribute__(()) in outmacho.c; also require gcc 4+ for __builtin_ctlz(). Speed up the open-coded version, too.
2007-04-14 03:58:42 +08:00
Define macros necessary for <inttypes.h> on C++ NASM currently doesn't compile with a C++ compiler, but the error messages are sometimes useful. Define macros necessary for <inttypes.h> to work with a C++ compiler.
2007-10-12 03:50:24 +08:00
/* This is required to get the standard <inttypes.h> macros when compiling
with a C++ compiler. This must be defined *before* <inttypes.h> is
included, directly or indirectly. */
#define __STDC_CONSTANT_MACROS 1
#define __STDC_LIMIT_MACROS 1
#define __STDC_FORMAT_MACROS 1
Macroize any compiler-specific code; macros defined in "compiler.h" Move anything compiler-specific to "compiler.h". There was an unguarded use of __attribute__(()) in outmacho.c; also require gcc 4+ for __builtin_ctlz(). Speed up the open-coded version, too.
2007-04-14 03:58:42 +08:00
#ifdef __GNUC__
# if __GNUC__ >= 4
# define HAVE_GNUC_4
# endif
# if __GNUC__ >= 3
# define HAVE_GNUC_3
# endif
#endif
#ifdef __GNUC__
# define _unused __attribute__((unused))
#else
# define _unused
#endif
Cleaner way to handle MSVC's _snprintf() underscore damage Some versions of MSVC have snprintf() and vsnprintf() only with a leading underscore. Handle that a bit more cleanly.
2007-09-18 04:53:14 +08:00
/* Some versions of MSVC have these only with underscores in front */
Add substitutes for snprintf() and vsnprintf() To deal with fools^Wpeople trying to keep really old systems alive, create a proper framework for substitution functions, and make it possible to deal with the lack of snprintf/vsnprintf in particular.
2007-09-29 01:50:20 +08:00
#include <stddef.h>
#include <stdarg.h>
Portability fixes Concentrate compiler dependencies to compiler.h; make sure compiler.h is included first in every .c file (since some prototypes may depend on the presence of feature request macros.) Actually use the conditional inclusion of various functions (totally broken in previous releases.)
2007-10-03 12:53:51 +08:00
#include <stdio.h>
Add substitutes for snprintf() and vsnprintf() To deal with fools^Wpeople trying to keep really old systems alive, create a proper framework for substitution functions, and make it possible to deal with the lack of snprintf/vsnprintf in particular.
2007-09-29 01:50:20 +08:00
#ifndef HAVE_SNPRINTF
# ifdef HAVE__SNPRINTF
# define snprintf _snprintf
# else
int snprintf(char *, size_t, const char *, ...);
# endif
Cleaner way to handle MSVC's _snprintf() underscore damage Some versions of MSVC have snprintf() and vsnprintf() only with a leading underscore. Handle that a bit more cleanly.
2007-09-18 04:53:14 +08:00
#endif
Add substitutes for snprintf() and vsnprintf() To deal with fools^Wpeople trying to keep really old systems alive, create a proper framework for substitution functions, and make it possible to deal with the lack of snprintf/vsnprintf in particular.
2007-09-29 01:50:20 +08:00
#ifndef HAVE_VSNPRINTF
# ifdef HAVE__VSNPRINT
# define vsnprintf _vsnprintf
# else
int vsnprintf(char *, size_t, const char *, va_list);
# endif
Cleaner way to handle MSVC's _snprintf() underscore damage Some versions of MSVC have snprintf() and vsnprintf() only with a leading underscore. Handle that a bit more cleanly.
2007-09-18 04:53:14 +08:00
#endif
Use the compiler-provided booleans if available, otherwise emulate Both C and C++ have "bool", "true" and "false" in lower case; C requires <stdbool.h> for this, in C++ it is an inherent type built into the compiler. Use those instead of the old macros; emulate with a simple typedef enum if unavailable.
2007-10-11 05:58:45 +08:00
#ifndef __cplusplus /* C++ has false, true, bool as keywords */
# ifdef HAVE_STDBOOL_H
# include <stdbool.h>
# else
typedef enum { false, true } bool;
# endif
#endif
Better handling of platforms which hide "extended" functionality Some platforms apparently feel -std=c99, which defines __STRICT_ANSI__, should also hide a bunch of function prototypes. This rather sucks. At least try to deal with it. MinGW and DJGPP both have this problem, in particular.
2007-10-27 09:49:29 +08:00
/* Some misguided platforms hide the defs for these */
#if defined(HAVE_STRCASECMP) && !HAVE_DECL_STRCASECMP
int strcasecmp(const char *, const char *);
#endif
#if defined(HAVE_STRICMP) && !HAVE_DECL_STRICMP
int stricmp(const char *, const char *);
#endif
#if defined(HAVE_STRNCASECMP) && !HAVE_DECL_STRNCASECMP
int strncasecmp(const char *, const char *, size_t);
#endif
#if defined(HAVE_STRNICMP) && !HAVE_DECL_STRNICMP
int strnicmp(const char *, const char *, size_t);
#endif
#if defined(HAVE_STRSEP) && !HAVE_DECL_STRSEP
char *strsep(char **, const char *);
#endif
Address data is int64_t; simplify writing an address object Address data is always int64_t even if the size itself is smaller; this was broken on bigendian hosts (still need testing!) Create simple "write sized object" macros.
2007-11-14 01:37:59 +08:00
/*
* Define this to 1 for faster performance if this is a littleendian
* platform which can do unaligned memory references. It is safe
* to leave it defined to 0 even if that is true.
*/
Some compilers define __386__ instead of __i386__ OpenWatcom, and possibly other compilers from the DOS universe, defines __386__ rather than __i386__.
2008-02-17 07:28:02 +08:00
#if defined(__386__) || defined(__i386__) || defined(__x86_64__)
Address data is int64_t; simplify writing an address object Address data is always int64_t even if the size itself is smaller; this was broken on bigendian hosts (still need testing!) Create simple "write sized object" macros.
2007-11-14 01:37:59 +08:00
# define X86_MEMORY 1
#else
# define X86_MEMORY 0
#endif
Portability fixes Concentrate compiler dependencies to compiler.h; make sure compiler.h is included first in every .c file (since some prototypes may depend on the presence of feature request macros.) Actually use the conditional inclusion of various functions (totally broken in previous releases.)
2007-10-03 12:53:51 +08:00
#endif /* NASM_COMPILER_H */
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