diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S | 73 |
1 files changed, 70 insertions, 3 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S index b9190ab135..2d6b685668 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S @@ -107,6 +107,10 @@ __pthread_cond_wait: mov.l @(cond_futex,r8),r0 add r2, r0 mov.l r0,@(cond_futex,r8) + mov #(1 << clock_bits), r2 + mov.l @(cond_nwaiters,r8), r0 + add r2, r0 + mov.l r0, @(cond_nwaiters,r8) /* Get and store current wakeup_seq value. */ mov.l @(wakeup_seq,r8), r10 @@ -192,7 +196,36 @@ __pthread_cond_wait: mov.l r0,@(woken_seq,r8) mov.l r1,@(woken_seq+4,r8) -16: +16: + mov #(1 << clock_bits), r2 + mov.l @(cond_nwaiters,r8),r0 + sub r2, r0 + mov.l r0,@(cond_nwaiters,r8) + + /* Wake up a thread which wants to destroy the condvar object. */ + mov.l @(total_seq,r8),r0 + mov.l @(total_seq+4,r8),r1 + and r1, r0 + not r0, r0 + cmp/eq #0, r0 + bf/s 17f + mov #((1 << clock_bits) - 1), r1 + not r1, r1 + mov.l @(cond_nwaiters,r8),r0 + tst r1, r0 + bf 17f + + mov r8, r4 + add #cond_nwaiters, r4 + mov #FUTEX_WAKE, r5 + mov #1, r6 + mov #0, r7 + mov #SYS_futex, r3 + extu.b r3, r3 + trapa #0x14 + SYSCALL_INST_PAD + +17: #if cond_lock != 0 DEC (@(cond_lock,r8), r2) #else @@ -371,7 +404,38 @@ __condvar_w_cleanup: mov.l r0,@(woken_seq,r8) mov.l r1,@(woken_seq+4,r8) -3: +3: + mov #(1 << clock_bits), r2 + mov.l @(cond_nwaiters,r8),r0 + sub r2, r0 + mov.l r0,@(cond_nwaiters,r8) + + /* Wake up a thread which wants to destroy the condvar object. */ + mov #0, r10 + mov.l @(total_seq,r8),r0 + mov.l @(total_seq+4,r8),r1 + and r1, r0 + not r0, r0 + cmp/eq #0, r0 + bf/s 4f + mov #((1 << clock_bits) - 1), r1 + not r1, r1 + mov.l @(cond_nwaiters,r8),r0 + tst r1, r0 + bf 4f + + mov r8, r4 + add #cond_nwaiters, r4 + mov #FUTEX_WAKE, r5 + mov #1, r6 + mov #0, r7 + mov #SYS_futex, r3 + extu.b r3, r3 + trapa #0x14 + SYSCALL_INST_PAD + mov #1, r10 + +4: #if cond_lock != 0 DEC (@(cond_lock,r8), r2) #else @@ -391,7 +455,9 @@ __condvar_w_cleanup: 2: /* Wake up all waiters to make sure no signal gets lost. */ - mov r8, r4 + tst r10, r10 + bf/s 5f + mov r8, r4 add #cond_futex, r4 mov #FUTEX_WAKE, r5 mov #-1, r6 @@ -402,6 +468,7 @@ __condvar_w_cleanup: trapa #0x14 SYSCALL_INST_PAD +5: mov.l .Lmlocki3, r1 bsrf r1 mov r9, r4 |