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(__lll_mutex_timedlock_wait): If woken but cannot get the lock, make sure 2 is stored in the futex and we looked at the old value. Fix a few other problems to return the correct value.

This commit is contained in:
Ulrich Drepper 2004-10-21 08:59:36 +00:00
parent 6d864d156d
commit bd9d405227
1 changed files with 11 additions and 4 deletions
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15
nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S
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@ -127,13 +127,14 @@ __lll_mutex_timedlock_wait:
extu.b r3, r3
trapa #0x14
SYSCALL_INST_PAD
mov r0, r4
mov r0, r5
8:
8:
mov #0, r3
mov #2, r4
CMPXCHG (r3, @r8, r4, r2)
bf 7f
bf/s 7f
mov #0, r0
6:
add #8, r15
@ -144,8 +145,14 @@ __lll_mutex_timedlock_wait:
7:
/* Check whether the time expired. */
mov #-ETIMEDOUT, r1
cmp/eq r4, r1
cmp/eq r5, r1
bt 5f
/* Make sure the current holder knows we are going to sleep. */
XCHG (r2, @r8, r3)
tst r3, r3
bt/s 6b
mov #0, r0
bra 1b
nop
3: