diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S index 5bcaec09c0..a433ba3c37 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -79,11 +79,16 @@ __pthread_cond_broadcast: #endif tst r2, r2 bf 7f + 8: - /* Wake up all threads. */ + /* Don't use requeue for pshared condvars. */ + mov #-1, r0 + cmp/eq r0, r9 mov r8, r4 - add #wakeup_seq, r4 -#ifdef __ASSUME_FUTEX_REQUEUE + bt/s 9f + add #wakeup_seq, r4 + + /* Wake up all threads. */ mov #FUTEX_REQUEUE, r5 mov #1, r6 mov #-1, r7 @@ -95,17 +100,9 @@ __pthread_cond_broadcast: mov #SYS_futex, r3 extu.b r3, r3 trapa #0x15 -#else - mov #FUTEX_WAKE, r5 - mov #-1, r6 - shlr r6 /* r6 = 0x7fffffff */ - mov #0, r7 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 -#endif SYSCALL_INST_PAD +10: mov #0, r0 lds.l @r15+, pr mov.l @r15+, r8 @@ -167,6 +164,18 @@ __pthread_cond_broadcast: bra 8b nop +9: + mov #FUTEX_WAKE, r5 + mov #-1, r6 + shlr r6 /* r6 = 0x7fffffff */ + mov #0, r7 + mov #SYS_futex, r3 + extu.b r3, r3 + trapa #0x14 + SYSCALL_INST_PAD + bra 10b + nop + .align 2 .Lmwait5: .long __lll_mutex_lock_wait-.Lmwait5b |