diff options
| author | Guillem Jover <guillem@hadrons.org> | 2018-05-22 15:43:48 +0200 |
|---|---|---|
| committer | Guillem Jover <guillem@hadrons.org> | 2018-05-22 15:45:37 +0200 |
| commit | bf697b900c06140a6ff6d00e22a812c46144bed1 (patch) | |
| tree | 4863dffba9ecdb17f14ea01fd1fb6b16a779a466 /include | |
| parent | f1966385b3a062f1932794da7622916eb3a48115 (diff) | |
Add symbol redirection support
We need this to be able to select different version symbols at
compile-time.
Diffstat (limited to 'include')
| -rw-r--r-- | include/bsd/sys/cdefs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/bsd/sys/cdefs.h b/include/bsd/sys/cdefs.h index 98333d1..b5c8dad 100644 --- a/include/bsd/sys/cdefs.h +++ b/include/bsd/sys/cdefs.h @@ -76,6 +76,9 @@ #define _SYS_CDEFS_H #endif +#define LIBBSD_CONCAT(x, y) x ## y +#define LIBBSD_STRING(x) #x + #ifdef __GNUC__ #define LIBBSD_GCC_VERSION (__GNUC__ << 8 | __GNUC_MINOR__) #else @@ -90,6 +93,12 @@ #define LIBBSD_DEPRECATED(x) #endif +#if LIBBSD_GCC_VERSION >= 0x0200 +#define LIBBSD_REDIRECT(name, proto, alias) name proto __asm__(LIBBSD_ASMNAME(#alias)) +#endif +#define LIBBSD_ASMNAME(cname) LIBBSD_ASMNAME_PREFIX(__USER_LABEL_PREFIX__, cname) +#define LIBBSD_ASMNAME_PREFIX(prefix, cname) LIBBSD_STRING(prefix) cname + #ifndef __dead2 # if LIBBSD_GCC_VERSION >= 0x0207 # define __dead2 __attribute__((__noreturn__)) |