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| author | Joerg Wunsch <joerg@FreeBSD.org> | 2005-03-02 21:33:29 +0000 |
|---|---|---|
| committer | Joerg Wunsch <joerg@FreeBSD.org> | 2005-03-02 21:33:29 +0000 |
| commit | a5f50ef9e43b28e15a7e2a2aec73754456619f17 (patch) | |
| tree | 69c98a86a28838e983d8eca9ba158f46450df8c1 /sys/amd64/include/endian.h | |
| parent | f685f62c9869f2c8181041ae3e3d87a09d2d3fbf (diff) | |
| download | src-a5f50ef9e43b28e15a7e2a2aec73754456619f17.tar.gz src-a5f50ef9e43b28e15a7e2a2aec73754456619f17.zip | |
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
Notes
Notes:
svn path=/head/; revision=143063
Diffstat (limited to 'sys/amd64/include/endian.h')
| -rw-r--r-- | sys/amd64/include/endian.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/amd64/include/endian.h b/sys/amd64/include/endian.h index 459126bdac07..6ed21185fd7d 100644 --- a/sys/amd64/include/endian.h +++ b/sys/amd64/include/endian.h @@ -63,7 +63,7 @@ #define BYTE_ORDER _BYTE_ORDER #endif -#ifdef __GNUC__ +#if defined(__GNUCLIKE_ASM) && defined(__GNUCLIKE_BUILTIN_CONSTANT_P) #define __word_swap_int_var(x) \ __extension__ ({ register __uint32_t __X = (x); \ @@ -177,7 +177,7 @@ __bswap16(__uint16_t _x) #define __ntohl(x) __bswap32(x) #define __ntohs(x) __bswap16(x) -#else /* !__GNUC__ */ +#else /* !(__GNUCLIKE_ASM && __GNUCLIKE_BUILTIN_CONSTANT_P) */ /* * No optimizations are available for this compiler. Fall back to @@ -186,6 +186,6 @@ __bswap16(__uint16_t _x) */ #define _BYTEORDER_FUNC_DEFINED -#endif /* __GNUC__ */ +#endif /* __GNUCLIKE_ASM && __GNUCLIKE_BUILTIN_CONSTANT_P */ #endif /* !_MACHINE_ENDIAN_H_ */ |