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| author | Ulrich Drepper <drepper@redhat.com> | 2007-05-26 21:47:28 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2007-05-26 21:47:28 +0000 |
| commit | a2dd3360dbbd183b289d356b0ebb3bafc921bb83 (patch) | |
| tree | e9eb7127c3ed7a248852062c100446a827a14d8d | |
| parent | 6df7ffad195864a5c28d9d24093866e919ef0494 (diff) | |
| download | glibc-a2dd3360dbbd183b289d356b0ebb3bafc921bb83.tar glibc-a2dd3360dbbd183b289d356b0ebb3bafc921bb83.tar.gz glibc-a2dd3360dbbd183b289d356b0ebb3bafc921bb83.tar.bz2 glibc-a2dd3360dbbd183b289d356b0ebb3bafc921bb83.zip | |
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S (sem_trywait): Tiny
optimization.
| -rw-r--r-- | nptl/ChangeLog | 3 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 0cd8193452..2ac2c44078 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,5 +1,8 @@ 2007-05-26 Ulrich Drepper <drepper@redhat.com> + * sysdeps/unix/sysv/linux/x86_64/sem_trywait.S (sem_trywait): Tiny + optimization. + * sysdeps/unix/sysv/linux/sem_wait.c: Add missing break. * sysdeps/unix/sysv/linux/sem_timedwait.c: Removed left-over duplication of __sem_wait_cleanup. diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S index 6b77dfc0d8..643090f065 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/sem_trywait.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2005, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -37,7 +37,7 @@ sem_trywait: 2: testl %eax, %eax jz 1f - leaq -1(%rax), %rdx + leal -1(%rax), %edx LOCK cmpxchgl %edx, (%rdi) jne 2b |