diff options
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | NEWS | 2 | ||||
| -rw-r--r-- | nptl/sem_waitcommon.c | 15 |
3 files changed, 25 insertions, 1 deletions
@@ -1,3 +1,12 @@ +2015-03-18 Joseph Myers <joseph@codesourcery.com> + + [BZ #18138] + * nptl/sem_waitcommon.c: Include <kernel-features.h>. + (futex_abstimed_wait) + [__ASSUME_FUTEX_CLOCK_REALTIME && lll_futex_timed_wait_bitset]: + Use lll_futex_timed_wait_bitset with FUTEX_CLOCK_REALTIME instead + of lll_futex_timed_wait. + 2015-03-18 Brad Hubbard <bhubbard@redhat.com> [BZ #17542] @@ -15,7 +15,7 @@ Version 2.22 17932, 17944, 17949, 17964, 17965, 17967, 17969, 17978, 17987, 17991, 17996, 17998, 17999, 18019, 18020, 18029, 18030, 18032, 18036, 18038, 18039, 18042, 18043, 18046, 18047, 18068, 18080, 18093, 18104, 18110, - 18111, 18128. + 18111, 18128, 18138. * Character encoding and ctype tables were updated to Unicode 7.0.0, using new generator scripts contributed by Pravin Satpute and Mike FABIAN (Red diff --git a/nptl/sem_waitcommon.c b/nptl/sem_waitcommon.c index 311e511..772425d 100644 --- a/nptl/sem_waitcommon.c +++ b/nptl/sem_waitcommon.c @@ -17,6 +17,7 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ +#include <kernel-features.h> #include <errno.h> #include <sysdep.h> #include <lowlevellock.h> @@ -45,6 +46,13 @@ futex_abstimed_wait (unsigned int* futex, unsigned int expected, } else { +#if (defined __ASSUME_FUTEX_CLOCK_REALTIME \ + && defined lll_futex_timed_wait_bitset) + /* The Linux kernel returns EINVAL for this, but in userspace + such a value is valid. */ + if (abstime->tv_sec < 0) + return ETIMEDOUT; +#else struct timeval tv; struct timespec rt; int sec, nsec; @@ -68,9 +76,16 @@ futex_abstimed_wait (unsigned int* futex, unsigned int expected, /* Do wait. */ rt.tv_sec = sec; rt.tv_nsec = nsec; +#endif if (cancel) oldtype = __pthread_enable_asynccancel (); +#if (defined __ASSUME_FUTEX_CLOCK_REALTIME \ + && defined lll_futex_timed_wait_bitset) + err = lll_futex_timed_wait_bitset (futex, expected, abstime, + FUTEX_CLOCK_REALTIME, private); +#else err = lll_futex_timed_wait (futex, expected, &rt, private); +#endif if (cancel) __pthread_disable_asynccancel (oldtype); } |