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authorJakub Jelinek <jakub@redhat.com>2007-10-17 14:34:44 +0000
committerJakub Jelinek <jakub@redhat.com>2007-10-17 14:34:44 +0000
commit96c06e084be93757bde5cc231a8ae1b616c27bf0 (patch)
tree0bd8ae44abf791949e4031d7b21711e8c65a8189
parent6a649d25bb4eac00000781221310b7c9e547b503 (diff)
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* sysdeps/unix/sysv/linux/i386/i486/sem_post.S (__old_sem_post): New
routine instead of an alias to __new_sem_post. 2007-10-17 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/i386/i486/sem_post.S (__old_sem_post): New routine instead of an alias to __new_sem_post.
-rw-r--r--nptl/ChangeLog5
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S21
2 files changed, 25 insertions, 1 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 85edbbe11d..eb9dd20b5a 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,8 @@
+2007-10-17 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/i386/i486/sem_post.S (__old_sem_post): New
+ routine instead of an alias to __new_sem_post.
+
2007-10-15 Jakub Jelinek <jakub@redhat.com>
* init.c (__pthread_initialize_minimal): Initialize word to appease
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
index 8f656b4e0f..ac045b6e34 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S
@@ -86,7 +86,26 @@ __new_sem_post:
versioned_symbol(libpthread, __new_sem_post, sem_post, GLIBC_2_1)
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
.global __old_sem_post
-__old_sem_post = __new_sem_post
+ .type __old_sem_post,@function
+__old_sem_post:
+ pushl %ebx
+
+ movl 8(%esp), %ebx
+ LOCK
+ addl $1, (%ebx)
+
+ movl $SYS_futex, %eax
+ movl $FUTEX_WAKE, %ecx
+ movl $1, %edx
+ ENTER_KERNEL
+
+ testl %eax, %eax
+ js 1b
+
+ xorl %eax, %eax
+ popl %ebx
+ ret
+ .size __old_sem_post,.-__old_sem_post
compat_symbol(libpthread, __old_sem_post, sem_post, GLIBC_2_0)
#endif