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 | 27 |
1 files changed, 25 insertions, 2 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 8dd31aac29..3aba58de14 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S @@ -19,12 +19,15 @@ #include <sysdep.h> #include <shlib-compat.h> #include <lowlevelcond.h> +#include <kernel-features.h> #include "lowlevel-atomic.h" #define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 +#define FUTEX_REQUEUE 3 +#define EINVAL 22 .text @@ -33,6 +36,7 @@ .type __pthread_cond_broadcast, @function .align 5 __pthread_cond_broadcast: + mov.l r9, @-r15 mov.l r8, @-r15 sts.l pr, @-r15 mov r4, r8 @@ -64,6 +68,9 @@ __pthread_cond_broadcast: mov.l r1, @(wakeup_seq,r8) mov.l r0, @(wakeup_seq+4,r8) + /* Get the address of the mutex used. */ + mov.l @(dep_mutex,r8), r9 + /* Unlock. */ #if cond_lock != 0 DEC (@(cond_lock,r8), r2) @@ -76,6 +83,19 @@ __pthread_cond_broadcast: /* Wake up all threads. */ mov r8, r4 add #wakeup_seq, r4 +#ifdef __ASSUME_FUTEX_REQUEUE + mov #FUTEX_REQUEUE, r5 + mov #1, r6 + mov #-1, r7 + shlr r7 /* r7 = 0x7fffffff */ + mov r9, r0 +# if MUTEX_FUTEX != 0 + add #MUTEX_FUTEX, r0 +# endif + mov #SYS_futex, r3 + extu.b r3, r3 + trapa #0x15 +#else mov #FUTEX_WAKE, r5 mov #-1, r6 shlr r6 /* r6 = 0x7fffffff */ @@ -83,12 +103,14 @@ __pthread_cond_broadcast: mov #SYS_futex, r3 extu.b r3, r3 trapa #0x14 +#endif SYSCALL_INST_PAD mov #0, r0 lds.l @r15+, pr + mov.l @r15+, r8 rts - mov.l @r15+, r8 + mov.l @r15+, r9 4: /* Unlock. */ @@ -102,8 +124,9 @@ __pthread_cond_broadcast: 6: mov #0, r0 lds.l @r15+, pr + mov.l @r15+, r8 rts - mov.l @r15+, r8 + mov.l @r15+, r9 1: /* Initial locking failed. */ |