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| 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/lowlevellock.S | |
| parent | 4d6302cf51b16a129addf7687c91490c40a7225c (diff) | |
| download | glibc-ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2.tar.gz glibc-ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2.tar.xz glibc-ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2.zip | |
* 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/lowlevellock.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S index d5c9345558..3a49e25dd2 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -48,12 +48,16 @@ __lll_mutex_lock_wait: xorq %r10, %r10 /* No timeout. */ movl $2, %edx - movq %r10, %rsi /* movq $FUTEX_WAIT, %rsi */ +#if FUTEX_WAIT == 0 + xorl %esi, %esi +#else + movl $FUTEX_WAIT, %esi +#endif cmpl %edx, %eax /* NB: %edx == 2 */ jne 2f -1: movq $SYS_futex, %rax +1: movl $SYS_futex, %eax syscall 2: movl %edx, %eax @@ -93,7 +97,7 @@ __lll_mutex_timedlock_wait: 1: /* Get current time. */ movq %rsp, %rdi - xorq %rsi, %rsi + xorl %esi, %esi movq $VSYSCALL_ADDR_vgettimeofday, %rax /* This is a regular function call, all caller-save registers might be clobbered. */ @@ -101,7 +105,7 @@ __lll_mutex_timedlock_wait: /* Compute relative timeout. */ movq 8(%rsp), %rax - movq $1000, %rdi + movl $1000, %edi mul %rdi /* Milli seconds to nano seconds. */ movq (%r13), %rdi movq 8(%r13), %rsi @@ -126,9 +130,13 @@ __lll_mutex_timedlock_wait: je 8f movq %rsp, %r10 - xorq %rsi, %rsi /* movq $FUTEX_WAIT, %rsi */ +#if FUTEX_WAIT == 0 + xorl %esi, %esi +#else + movl $FUTEX_WAIT, %esi +#endif movq %r12, %rdi - movq $SYS_futex, %rax + movl $SYS_futex, %eax syscall movq %rax, %rcx @@ -195,9 +203,9 @@ __lll_mutex_unlock_wake: pushq %rdx movl $0, (%rdi) - movq $FUTEX_WAKE, %rsi + movl $FUTEX_WAKE, %esi movl $1, %edx /* Wake one thread. */ - movq $SYS_futex, %rax + movl $SYS_futex, %eax syscall popq %rdx @@ -222,13 +230,13 @@ __lll_timedwait_tid: /* Get current time. */ 2: movq %rsp, %rdi - xorq %rsi, %rsi + xorl %esi, %esi movq $VSYSCALL_ADDR_vgettimeofday, %rax callq *%rax /* Compute relative timeout. */ movq 8(%rsp), %rax - movq $1000, %rdi + movl $1000, %edi mul %rdi /* Milli seconds to nano seconds. */ movq (%r13), %rdi movq 8(%r13), %rsi @@ -248,9 +256,13 @@ __lll_timedwait_tid: jz 4f movq %rsp, %r10 - xorq %rsi, %rsi /* movq $FUTEX_WAIT, %rsi */ +#if FUTEX_WAIT == 0 + xorl %esi, %esi +#else + movl $FUTEX_WAIT, %esi +#endif movq %r12, %rdi - movq $SYS_futex, %rax + movl $SYS_futex, %eax syscall cmpl $0, (%rdi) |