nasm/compiler.h

/* ----------------------------------------------------------------------- *
 *
 *   Copyright 2007 The NASM Authors - All Rights Reserved
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the license given in the file "License"
 *   distributed in the NASM archive.
 *
 * ----------------------------------------------------------------------- */

/*
 * compiler.h
 *
 * Compiler-specific macros for NASM.  Feel free to add support for
 * other compilers in here.
 */

#ifndef COMPILER_H
#define COMPILER_H 1

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#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

#endif	/* COMPILER_H */
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. 2007-04-13 19:58:42 +00:00			`/* ----------------------------------------------------------------------- *`
			`*`
			`* Copyright 2007 The NASM Authors - All Rights Reserved`
			`*`
			`* This program is free software; you can redistribute it and/or modify`
			`* it under the terms of the license given in the file "License"`
			`* distributed in the NASM archive.`
			`*`
			`* ----------------------------------------------------------------------- */`

			`/*`
			`* compiler.h`
			`*`
			`* Compiler-specific macros for NASM. Feel free to add support for`
			`* other compilers in here.`
			`*/`

			`#ifndef COMPILER_H`
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. 2007-04-13 20:06:41 +00:00			`#define COMPILER_H 1`

			`#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. 2007-04-13 19:58:42 +00:00
			`#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`

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. 2007-04-13 20:06:41 +00:00			`#endif /* COMPILER_H */`