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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-10-26 17:01:43 -0200 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-12-28 20:31:04 -0200 |
| commit | 0f971840201bcb27247a8d8f53621197396262cd (patch) | |
| tree | ced9fa9e7bc895a7dcd02493696aa0f6b7134858 /sysdeps/unix/sysv/linux/semop.c | |
| parent | d29f6bcdcc11d81e20c5880f5e1d7588cef950f7 (diff) | |
| download | glibc-0f971840201bcb27247a8d8f53621197396262cd.tar.gz glibc-0f971840201bcb27247a8d8f53621197396262cd.tar.xz glibc-0f971840201bcb27247a8d8f53621197396262cd.zip | |
Use semop syscall for Linux implementation
This patch add a direct call to semop syscall if it is supported by kernel headers. Checked on x86_64, i686, powerpc64le, aarch64, and armhf. * sysdeps/unix/sysv/linux/alpha/syscalls.list (semop): Remove. * sysdeps/unix/sysv/linux/arm/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/generic/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/hppa/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/ia64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/microblaze/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (semop): Likewise. * sysdeps/unix/sysv/linux/semop.c (semop): Use semop syscall if it is defined.
Diffstat (limited to 'sysdeps/unix/sysv/linux/semop.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/semop.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/semop.c b/sysdeps/unix/sysv/linux/semop.c index 593eb4ce85..c179fccece 100644 --- a/sysdeps/unix/sysv/linux/semop.c +++ b/sysdeps/unix/sysv/linux/semop.c @@ -16,17 +16,19 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <errno.h> #include <sys/sem.h> #include <ipc_priv.h> - #include <sysdep.h> -#include <sys/syscall.h> +#include <errno.h> /* Perform user-defined atomical operation of array of semaphores. */ int semop (int semid, struct sembuf *sops, size_t nsops) { - return INLINE_SYSCALL (ipc, 5, IPCOP_semop, semid, (int) nsops, 0, sops); +#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS + return INLINE_SYSCALL_CALL (semop, semid, sops, nsops); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_semop, semid, nsops, 0, sops); +#endif } |