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| author | H. Peter Anvin <hpa@zytor.com> | 2007-04-13 19:58:42 +0000 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2007-04-13 19:58:42 +0000 |
| commit | c1494ac5abcdbdb1a6b4c56eb845b0d7694a853b (patch) | |
| tree | 640c70ac3d99faeef56be65b4588e97658e934de /compiler.h | |
| parent | a6dfa78b7805673b2b4955a9f34e21825730f79d (diff) | |
| download | nasm-c1494ac5abcdbdb1a6b4c56eb845b0d7694a853b.tar.gz nasm-c1494ac5abcdbdb1a6b4c56eb845b0d7694a853b.tar.bz2 nasm-c1494ac5abcdbdb1a6b4c56eb845b0d7694a853b.zip | |
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.
Diffstat (limited to 'compiler.h')
| -rw-r--r-- | compiler.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/compiler.h b/compiler.h new file mode 100644 index 0000000..0e59f52 --- /dev/null +++ b/compiler.h @@ -0,0 +1,36 @@ +/* ----------------------------------------------------------------------- * + * + * 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 + +#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 |