diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2005-03-31 10:02:53 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-03-31 10:02:53 +0000 |
| commit | ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2 (patch) | |
| tree | cf3e2fe1f9be5b358033fd927a0bd922542e04a1 /nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S | |
| parent | 4d6302cf51b16a129addf7687c91490c40a7225c (diff) | |
* sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally
equivalent, but shorter instructions.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/setcontext.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/swapcontext.S: Likewise.
* sysdeps/unix/x86_64/sysdep.S: Likewise.
* sysdeps/x86_64/strchr.S: Likewise.
* sysdeps/x86_64/memset.S: Likewise.
* sysdeps/x86_64/strcspn.S: Likewise.
* sysdeps/x86_64/strcmp.S: Likewise.
* sysdeps/x86_64/elf/start.S: Likewise.
* sysdeps/x86_64/strspn.S: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/x86_64/bsd-_setjmp.S: Likewise.
* sysdeps/x86_64/bsd-setjmp.S: Likewise.
* sysdeps/x86_64/strtok.S: Likewise.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S index 3fec0f4205..6bf8d095ba 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_once.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -74,8 +74,12 @@ __pthread_once: jnz 3f /* Different for generation -> run initializer. */ /* Somebody else got here first. Wait. */ - movq %r10, %rsi /* movq $FUTEX_WAIT, %rsi */ - movq $SYS_futex, %rax +#if FUTEX_WAIT == 0 + xorl %esi, %esi +#else + movl $FUTEX_WAIT, %esi +#endif + movl $SYS_futex, %eax syscall jmp 6b @@ -98,12 +102,12 @@ __pthread_once: /* Wake up all other threads. */ movl $0x7fffffff, %edx movl $FUTEX_WAKE, %esi - movq $SYS_futex, %rax + movl $SYS_futex, %eax syscall 4: addq $8, %rsp .Ladd: - xorq %rax, %rax + xorl %eax, %eax retq .size __pthread_once,.-__pthread_once @@ -124,8 +128,8 @@ clear_once_control: movl $0, (%rdi) movl $0x7fffffff, %edx - movq $FUTEX_WAKE, %rsi - movq $SYS_futex, %rax + movl $FUTEX_WAKE, %esi + movl $SYS_futex, %eax syscall movq %r8, %rdi |