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| author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-09-13 21:17:38 -0400 |
|---|---|---|
| committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-09-13 21:17:38 -0400 |
| commit | c73c7c774cbd1f0e778254d51da819490a333ab4 (patch) | |
| tree | 2db5fa808791e0b4fc671537690264caee56e6da /src/basic/macro.h | |
| parent | 5496aef5f410ca665c76fb1bbfb584c7925fd49e (diff) | |
| parent | b3ec0a0674f4e499bcb6d2469acdf9d2d574c3d6 (diff) | |
Merge branch 'systemd/parabola' into notsystemd/premove
# Conflicts:
# Makefile.am
# tmpfiles.d/etc.conf.m4
Diffstat (limited to 'src/basic/macro.h')
| -rw-r--r-- | src/basic/macro.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/basic/macro.h b/src/basic/macro.h index e41aa4260f..6b2aeb933f 100644 --- a/src/basic/macro.h +++ b/src/basic/macro.h @@ -89,6 +89,15 @@ #define UNIQ_T(x, uniq) CONCATENATE(__unique_prefix_, CONCATENATE(x, uniq)) #define UNIQ __COUNTER__ +/* builtins */ +#if __SIZEOF_INT__ == 4 +#define BUILTIN_FFS_U32(x) __builtin_ffs(x); +#elif __SIZEOF_LONG__ == 4 +#define BUILTIN_FFS_U32(x) __builtin_ffsl(x); +#else +#error "neither int nor long are four bytes long?!?" +#endif + /* Rounds up */ #define ALIGN4(l) (((l) + 3) & ~3) |