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| author | Corinna Vinschen <corinna@vinschen.de> | 2011-03-03 10:37:09 +0000 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2011-03-03 10:37:09 +0000 |
| commit | 977cd4175e7e834007f79e484c690b9159ee03bd (patch) | |
| tree | de87071f3e485a4f26fd0715ea6ab68ac3e99ae2 /newlib/libc/include | |
| parent | b7351dcfb1863332e36eebc380d99e13f12e60b8 (diff) | |
| download | cygnal-977cd4175e7e834007f79e484c690b9159ee03bd.tar.gz cygnal-977cd4175e7e834007f79e484c690b9159ee03bd.tar.bz2 cygnal-977cd4175e7e834007f79e484c690b9159ee03bd.zip | |
* libc/include/sys/cdefs.h (__CONCAT1): Define.
(__CONCAT): Define.
(__STRING): Define.
(__XSTRING): Define.
(__ASMNAME): Define.
* libc/include/string.h (strerror_r): Use __ASMNAME to take target
specific label prefixes into account.
Diffstat (limited to 'newlib/libc/include')
| -rw-r--r-- | newlib/libc/include/string.h | 2 | ||||
| -rw-r--r-- | newlib/libc/include/sys/cdefs.h | 21 |
2 files changed, 22 insertions, 1 deletions
diff --git a/newlib/libc/include/string.h b/newlib/libc/include/string.h index 7202b06ab..09d065e12 100644 --- a/newlib/libc/include/string.h +++ b/newlib/libc/include/string.h @@ -74,7 +74,7 @@ char *_EXFUN(_strndup_r,(struct _reent *, const char *, size_t)); char *_EXFUN(strerror_r,(int, char *, size_t)); #else # ifdef __GNUC__ -int _EXFUN(strerror_r,(int, char *, size_t)) __asm__ ("__xpg_strerror_r"); +int _EXFUN(strerror_r,(int, char *, size_t)) __asm__ (__ASMNAME ("__xpg_strerror_r")); # else int _EXFUN(__xpg_strerror_r,(int, char *, size_t)); # define strerror_r __xpg_strerror_r diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h index f0b6a27b4..e3298efaf 100644 --- a/newlib/libc/include/sys/cdefs.h +++ b/newlib/libc/include/sys/cdefs.h @@ -58,6 +58,27 @@ #define __DOTS , ... #define __THROW +/* + * The __CONCAT macro is used to concatenate parts of symbol names, e.g. + * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. + * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI + * mode -- there must be no spaces between its arguments, and for nested + * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also + * concatenate double-quoted strings produced by the __STRING macro, but + * this only works with ANSI C. + * + * __XSTRING is like __STRING, but it expands any macros in its argument + * first. It is only available with ANSI C. + */ +#define __CONCAT1(x,y) x ## y +#define __CONCAT(x,y) __CONCAT1(x,y) +#define __STRING(x) #x /* stringify without expanding x */ +#define __XSTRING(x) __STRING(x) /* expand x, then stringify */ + +#ifdef __GNUC__ +# define __ASMNAME(cname) __XSTRING (__USER_LABEL_PREFIX__) cname +#endif + #define __ptr_t void * #define __long_double_t long double |