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| author | joerg <joerg@FreeBSD.org> | 2005-03-02 21:33:29 +0000 |
|---|---|---|
| committer | joerg <joerg@FreeBSD.org> | 2005-03-02 21:33:29 +0000 |
| commit | c85a3e95f78bb183ec62ae6ef948265e7ade6b7a (patch) | |
| tree | 69c98a86a28838e983d8eca9ba158f46450df8c1 /sys/amd64/include/varargs.h | |
| parent | 2307c11d0fa1ac2133cff99d6c1a90c711b15f61 (diff) | |
| download | FreeBSD-src-c85a3e95f78bb183ec62ae6ef948265e7ade6b7a.zip FreeBSD-src-c85a3e95f78bb183ec62ae6ef948265e7ade6b7a.tar.gz | |
netchild's mega-patch to isolate compiler dependencies into a central
place.
This moves the dependency on GCC's and other compiler's features into
the central sys/cdefs.h file, while the individual source files can
then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to
refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42.
By now, GCC and ICC (the Intel compiler) have been actively tested on
IA32 platforms by netchild. Extension to other compilers is supposed
to be possible, of course.
Submitted by: netchild
Reviewed by: various developers on arch@, some time ago
Diffstat (limited to 'sys/amd64/include/varargs.h')
| -rw-r--r-- | sys/amd64/include/varargs.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/sys/amd64/include/varargs.h b/sys/amd64/include/varargs.h index 1a58a47..3b9f542 100644 --- a/sys/amd64/include/varargs.h +++ b/sys/amd64/include/varargs.h @@ -43,7 +43,11 @@ #ifndef _MACHINE_VARARGS_H_ #define _MACHINE_VARARGS_H_ -#if defined(__GNUC__) && (__GNUC__ == 2 && __GNUC_MINOR__ > 95 || __GNUC__ >= 3) +#ifndef _SYS_CDEFS_H_ +#error this file needs sys/cdefs.h as a prerequisite +#endif + +#ifdef __GNUCLIKE_BUILTIN_VARARGS #include <sys/_types.h> @@ -60,21 +64,17 @@ typedef int __builtin_va_alist_t __attribute__((__mode__(__word__))); #define va_arg(ap, type) __builtin_va_arg((ap), type) #define va_end(ap) __builtin_va_end(ap) -#else /* ! __GNUC__ post GCC 2.95 */ +#else /* !__GNUCLIKE_BUILTIN_VARARGS */ typedef char *va_list; #define __va_size(type) \ (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int)) -#ifdef __GNUC__ +#ifdef __GNUCLIKE_BUILTIN_VAALIST #define va_alist __builtin_va_alist #endif -#if __GNUC__ > 1 #define va_dcl int va_alist; ... -#else -#define va_dcl int va_alist; -#endif #define va_start(ap) \ ((ap) = (va_list)&va_alist) @@ -84,6 +84,6 @@ typedef char *va_list; #define va_end(ap) -#endif /* __GNUC__ post GCC 2.95 */ +#endif /* __GNUCLIKE_BUILTIN_VARARGS */ #endif /* !_MACHINE_VARARGS_H_ */ |
