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authorUlrich Drepper <drepper@redhat.com>2003-06-19 19:53:12 +0000
committerUlrich Drepper <drepper@redhat.com>2003-06-19 19:53:12 +0000
commit9bdabb94dac4be59ab69b3330457861ae997c940 (patch)
tree0d1ae3209cc907c1468d55788142191527e1054e /nptl
parent4e502c601d4522c846b779e82a1786469ea0a02d (diff)
downloadglibc-9bdabb94dac4be59ab69b3330457861ae997c940.tar.gz
Update.
2003-06-19 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/ia64/sem_post.c: Move to... * sysdeps/unix/sysv/linux/sem_post.c: ...here. * sysdeps/unix/sysv/linux/sem_post.c: Move to... * sysdeps/unix/sysv/linux/powerpc/sem_post.c: ... here. Pass nr + 1 instead of nr to lll_futex_wake. Only set errno and return -1 if err < 0. * sysdeps/unix/sysv/linux/powerpc/lowlevellock.h (lll_futex_wait, lll_futex_timed_wait, lll_futex_wake, lll_futex_requeue): On success return actual return value from the syscall, not 0. compat_timer_getoverrun.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/ChangeLog16
-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h8
-rw-r--r--nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c (renamed from nptl/sysdeps/unix/sysv/linux/ia64/sem_post.c)5
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sem_post.c15
4 files changed, 30 insertions, 14 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index d3221e81f9..26b8909e7f 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,17 @@
+2003-06-19 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/ia64/sem_post.c: Move to...
+ * sysdeps/unix/sysv/linux/sem_post.c: ...here.
+
+ * sysdeps/unix/sysv/linux/sem_post.c: Move to...
+ * sysdeps/unix/sysv/linux/powerpc/sem_post.c: ... here. Pass nr + 1
+ instead of nr to lll_futex_wake. Only set errno and return -1
+ if err < 0.
+
+ * sysdeps/unix/sysv/linux/powerpc/lowlevellock.h (lll_futex_wait,
+ lll_futex_timed_wait, lll_futex_wake, lll_futex_requeue): On success
+ return actual return value from the syscall, not 0.
+
2003-06-18 Ulrich Drepper <drepper@redhat.com>
* tst-cancel4.c (tf_msgsnd): Don't always use 100 as the type,
@@ -10,7 +24,7 @@
* sysdeps/unix/sysv/linux/timer_gettime.c: Add prototype for
compat_timer_gettime.
* sysdeps/unix/sysv/linux/timer_getoverr.c: Add prototype for
- compat_timer_getoverrun.o
+ compat_timer_getoverrun.
* sysdeps/unix/sysv/linux/timer_delete.c: Add prototype for
compat_timer_delete.
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
index eba0ade252..00ca257ca0 100644
--- a/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
@@ -41,7 +41,7 @@
\
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), FUTEX_WAIT, (val), 0); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
})
#define lll_futex_timed_wait(futexp, val, timespec) \
@@ -51,7 +51,7 @@
\
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), FUTEX_WAIT, (val), (timespec)); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
})
#define lll_futex_wake(futexp, nr) \
@@ -61,7 +61,7 @@
\
__ret = INTERNAL_SYSCALL (futex, __err, 4, \
(futexp), FUTEX_WAKE, (nr), 0); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
})
#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex) \
@@ -72,7 +72,7 @@
__ret = INTERNAL_SYSCALL (futex, __err, 5, \
(futexp), FUTEX_REQUEUE, (nr_wake), (nr_move), \
(mutex)); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err)? -__ret: 0; \
+ INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
})
#ifdef UP
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/sem_post.c b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
index 0527abeba6..d9ee5d50b7 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
@@ -1,7 +1,7 @@
-/* sem_post -- post to a POSIX semaphore. IA-64 version.
+/* sem_post -- post to a POSIX semaphore. Powerpc version.
Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+ Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@@ -32,6 +32,7 @@ __new_sem_post (sem_t *sem)
int *futex = (int *) sem;
int err, nr;
+ __asm __volatile (__lll_rel_instr ::: "memory");
nr = atomic_exchange_and_add (futex, 1);
err = lll_futex_wake (futex, nr + 1);
if (__builtin_expect (err, 0) < 0)
diff --git a/nptl/sysdeps/unix/sysv/linux/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sem_post.c
index 2da6ecd696..b4ee4cfc8a 100644
--- a/nptl/sysdeps/unix/sysv/linux/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/sem_post.c
@@ -1,7 +1,7 @@
/* sem_post -- post to a POSIX semaphore. Generic futex-using version.
Copyright (C) 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@@ -32,13 +32,14 @@ __new_sem_post (sem_t *sem)
int *futex = (int *) sem;
int err, nr;
- __asm __volatile (__lll_rel_instr ::: "memory");
nr = atomic_exchange_and_add (futex, 1);
- err = lll_futex_wake (futex, nr);
- if (err == 0)
- return 0;
- __set_errno (-err);
- return -1;
+ err = lll_futex_wake (futex, nr + 1);
+ if (__builtin_expect (err, 0) < 0)
+ {
+ __set_errno (-err);
+ return -1;
+ }
+ return 0;
}
versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)