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| author | Florian Weimer <fweimer@redhat.com> | 2021-05-03 08:12:11 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-05-03 08:14:01 +0200 |
| commit | 575295fc8314b089e52f98de4aa16a9d7aeb9bf4 (patch) | |
| tree | beee73fc51f4c1213cf54e9b137ef9d776eaab66 /sysdeps/nptl/libc-lockP.h | |
| parent | ad201afe5c348de265b92bae6688034102a4386b (diff) | |
| download | glibc-575295fc8314b089e52f98de4aa16a9d7aeb9bf4.tar.gz glibc-575295fc8314b089e52f98de4aa16a9d7aeb9bf4.tar.xz glibc-575295fc8314b089e52f98de4aa16a9d7aeb9bf4.zip | |
nptl: Move call_once into libc
The symbol was moved using scripts/move-symbol-to-libc.py. This change also turns __pthread_once into a compatibility symbol because after the call_once move, an internal call to __pthread_once can be used. This an adjustment to __libc_once: Outside libc (e.g., in nscd), it has to call pthread_once. With __pthread_once as a compatibility symbol, it is no longer to add a new GLIBC_2.34 version after the move from libpthread, and this commit removes the new __pthread_once@@GLIBC_2.34 version. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/nptl/libc-lockP.h')
| -rw-r--r-- | sysdeps/nptl/libc-lockP.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sysdeps/nptl/libc-lockP.h b/sysdeps/nptl/libc-lockP.h index e573689799..aad9c9778c 100644 --- a/sysdeps/nptl/libc-lockP.h +++ b/sysdeps/nptl/libc-lockP.h @@ -210,9 +210,15 @@ _Static_assert (LLL_LOCK_INITIALIZER == 0, "LLL_LOCK_INITIALIZER != 0"); CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT #endif -/* Call handler iff the first call. */ -#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \ +/* Call handler iff the first call. Use a local call in libc, but the + global pthread_once symbol elsewhere. */ +#if IS_IN (libc) +# define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \ __pthread_once (&(ONCE_CONTROL), INIT_FUNCTION) +#else +# define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \ + pthread_once (&(ONCE_CONTROL), INIT_FUNCTION) +#endif /* Get once control variable. */ #define __libc_once_get(ONCE_CONTROL) ((ONCE_CONTROL) != PTHREAD_ONCE_INIT) |