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| author | Roland McGrath <roland@hack.frob.com> | 2014-10-17 14:30:16 -0700 |
|---|---|---|
| committer | Roland McGrath <roland@hack.frob.com> | 2014-10-17 14:30:16 -0700 |
| commit | 184ee94010786a9e0952aff3af39eba1d72287d3 (patch) | |
| tree | b7f4a680b4340f565951a599a6d86f88e61a1711 /nptl/nptl-init.c | |
| parent | 327ae2570744dabf7f065a6b529d16cc22438603 (diff) | |
| download | glibc-184ee94010786a9e0952aff3af39eba1d72287d3.tar.gz glibc-184ee94010786a9e0952aff3af39eba1d72287d3.tar.xz glibc-184ee94010786a9e0952aff3af39eba1d72287d3.zip | |
NPTL: Conditionalize direct futex syscall uses.
Diffstat (limited to 'nptl/nptl-init.c')
| -rw-r--r-- | nptl/nptl-init.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c index d8154c4101..a39ec9a23d 100644 --- a/nptl/nptl-init.c +++ b/nptl/nptl-init.c @@ -329,7 +329,8 @@ __pthread_initialize_minimal_internal (void) #endif set_robust_list_not_avail (); -#ifndef __ASSUME_PRIVATE_FUTEX +#ifdef __NR_futex +# ifndef __ASSUME_PRIVATE_FUTEX /* Private futexes are always used (at least internally) so that doing the test once this early is beneficial. */ { @@ -345,8 +346,8 @@ __pthread_initialize_minimal_internal (void) know the former are not supported. This also means we know the kernel will return ENOSYS for unknown operations. */ if (THREAD_GETMEM (pd, header.private_futex) != 0) -#endif -#ifndef __ASSUME_FUTEX_CLOCK_REALTIME +# endif +# ifndef __ASSUME_FUTEX_CLOCK_REALTIME { int word = 0; /* NB: the syscall actually takes six parameters. The last is the @@ -361,6 +362,7 @@ __pthread_initialize_minimal_internal (void) if (INTERNAL_SYSCALL_ERRNO (word, err) != ENOSYS) __set_futex_clock_realtime (); } +# endif #endif /* Set initial thread's stack block from 0 up to __libc_stack_end. |