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| author | Tobias Jungel <tobias.jungel@bisdn.de> | 2016-06-01 15:18:21 +0200 |
|---|---|---|
| committer | Tobias Jungel <tobias.jungel@bisdn.de> | 2016-06-10 09:10:41 +0200 |
| commit | 13b498f967c5117a88d72304bed1f8c0b9c1bb87 (patch) | |
| tree | d2a48a8958bb4ca2fff71a9a50c29eb620f00f05 /src/basic/macro.h | |
| parent | 6cad256dbe6343de4329934ea7c08707a365d340 (diff) | |
| download | systemd-13b498f967c5117a88d72304bed1f8c0b9c1bb87.tar.gz | |
networkd: add support to configure VLAN on bridge ports
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) |