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(__lll_lock_wait): Remove jump prediction suffix.

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This commit is contained in:
Ulrich Drepper 2003-03-17 01:53:39 +00:00
parent b6e2f87a61
commit 25d025ce77
4 changed files with 17 additions and 14 deletions
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13
nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevelmutex.S
View File

@ -88,10 +88,10 @@ __lll_mutex_timedlock_wait:
movl %ecx, %ebp
movl %edx, %edi
leal 1(%eax), %esi
1: leal 1(%eax), %esi
/* Get current time. */
1:
movl %esp, %ebx
xorl %ecx, %ecx
movl $SYS_gettimeofday, %eax
@ -120,11 +120,12 @@ __lll_mutex_timedlock_wait:
movl %ebp, %ebx
movl $SYS_futex, %eax
ENTER_KERNEL
movl %eax, %ecx
movl $1, %esi
movl $1, %eax
LOCK
xaddl %esi, (%ebx)
testl %esi, %esi
xaddl %eax, (%ebx)
testl %eax, %eax
jne 7f
movl $2, (%ebx)
@ -138,7 +139,7 @@ __lll_mutex_timedlock_wait:
ret
/* Check whether the time expired. */
7: cmpl $-ETIMEDOUT, %eax
7: cmpl $-ETIMEDOUT, %ecx
je 5f
jmp 1b

2
nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
View File

@ -58,7 +58,7 @@ __lll_lock_wait:
orl $-1, %esi /* Load -1. */
LOCK
xaddl %esi, (%rdi)
jne,pn 1b
jne 1b
movl $-1, (%rdi)

2
nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
View File

@ -92,7 +92,7 @@ extern int __lll_mutex_unlock_wait (int *__futex) attribute_hidden;
"jmp 2f\n\t" \
".previous\n" \
"2:" \
: "=S" (result), "=&D" (ignore1), "=&a" (ignore2), \
: "=a" (result), "=&D" (ignore1), "=&S" (ignore2), \
"=&d" (ignore3), "=m" (futex) \
: "0" (1), "4" (futex), "m" (timeout) \
: "memory", "cx", "cc", "r10"); \

14
nptl/sysdeps/unix/sysv/linux/x86_64/lowlevelmutex.S
View File

@ -87,10 +87,11 @@ __lll_mutex_timedlock_wait:
movq %rdi, %r12
movq %rdx, %r13
leaq 1(%rsi), %r14
1: leaq 1(%rax), %r14
/* Get current time. */
1: movq %rsp, %rdi
movq %rsp, %rdi
xorq %rsi, %rsi
movq $VSYSCALL_ADDR_vgettimeofday, %rax
/* This is a regular function call, all calleer-save registers
@ -121,11 +122,12 @@ __lll_mutex_timedlock_wait:
movq %r12, %rdi
movq $SYS_futex, %rax
syscall
movq %rax, %rcx
movl $1, %r14d
movl $1, %eax
LOCK
xaddl %r14d, (%rdi)
testl %r14d, %r14d
xaddl %eax, (%rdi)
testl %eax, %eax
jne 7f
movl $2, (%rdi)
@ -138,7 +140,7 @@ __lll_mutex_timedlock_wait:
retq
/* Check whether the time expired. */
7: cmpq $-ETIMEDOUT, %rax
7: cmpq $-ETIMEDOUT, %rcx
je 5f
jmp 1b