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Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S')
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S110
1 files changed, 110 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S
new file mode 100644
index 000000000..f71cd930d
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_post.S
@@ -0,0 +1,110 @@
+/* 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <pthread-errnos.h>
+#include <structsem.h>
+#include <lowlevellock.h>
+#include "lowlevel-atomic.h"
+
+
+ .text
+
+ .globl __new_sem_post
+ .type __new_sem_post,@function
+ .align 5
+__new_sem_post:
+ 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
+ mov #FUTEX_WAKE, r5
+ mov.l @(PRIVATE,r4), r1
+ or r1, r5
+ mov #1, r6
+ mov #0, r7
+ mov #SYS_futex, r3
+ extu.b r3, r3
+ trapa #0x14
+ SYSCALL_INST_PAD
+
+ cmp/pz r0
+ bf 1f
+2:
+ rts
+ mov #0, r0
+
+1:
+ 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
+
+#if USE___THREAD
+ mov.l .Lerrno3, r0
+ stc gbr, r1
+ mov.l @(r0, r12), r0
+ bra .Lexit
+ add r1, r0
+ .align 2
+.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
+ 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
+.Lerrloc3:
+ .long __errno_location@PLT-(.Lerrloc3b-.)
+#endif
+ .size __new_sem_post,.-__new_sem_post
+ weak_alias(__new_sem_post, sem_post)