diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/sem_post.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/sem_post.S | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S b/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S index a3a7710ef9..4a154fc649 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004, 2007, 2008 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 @@ -30,8 +30,16 @@ .type __new_sem_post,@function .align 5 __new_sem_post: - mov #1, r3 - XADD (r3, @(VALUE,r4), r2) + mov.l @(VALUE,r4), r2 +0: + mov.l .Lmax, r1 + cmp/eq r1, r2 + bt/s 3f + mov r2, r3 + mov r3, r5 + add #1, r5 + CMPXCHG (r3, @(VALUE,r4), r5, r2) + bf 0b mov.l @(NWAITERS,r4), r2 tst r2, r2 bt 2f @@ -52,7 +60,15 @@ __new_sem_post: mov #0, r0 1: - mov #EINVAL, r2 + bra 4f + mov #EINVAL, r2 + +3: + mov #EOVERFLOW, r2 +4: + mov.l r12, @-r15 + mov.l r8, @-r15 + sts.l pr, @-r15 mova .Lgot3, r0 mov.l .Lgot3, r12 add r0, r12 @@ -67,19 +83,24 @@ __new_sem_post: .Lerrno3: .long errno@GOTTPOFF .Lexit: + mov.l r2, @r0 #else + mov r2, r8 mov.l .Lerrloc3, r1 bsrf r1 nop .Lerrloc3b: + mov r8, @r0 #endif - mov.l r2, @r0 lds.l @r15+, pr + mov.l @r15+, r8 mov.l @r15+, r12 rts mov #-1, r0 .align 2 +.Lmax: + .long SEM_VALUE_MAX .Lgot3: .long _GLOBAL_OFFSET_TABLE_ #if !USE___THREAD |