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authorJakub Jelinek <jakub@redhat.com>2007-08-15 20:47:43 +0000
committerJakub Jelinek <jakub@redhat.com>2007-08-15 20:47:43 +0000
commite4720b0e594f4599d0256dfb713ddd4d2281ddbc (patch)
tree361c259b576fbbda177da526e1f248e0c6830749
parentd13f4a43865051177cb6bb084f64dbc5b62c97c7 (diff)
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* sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising cvs/fedora-glibc-20070815T2049
FE_UNDERFLOW on Niagara CPUs. * sysdeps/sparc/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions. * sysdeps/unix/sysv/linux/sparc/internaltypes.h (sparc_new_sem, sparc_old_sem): New structs. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c (__sem_wait_cleanup): New function. (__new_sem_wait): Use sparc_new_sem structure. Bump and afterwards decrease nwaiters. Register __sem_wait_cleanup as cleanup handler. Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to lll_futex_wait. (__old_sem_wait): New function. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c: Include nptl/sysdeps/unix/sysv/linux/sparc version. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c (__new_sem_trywait): Use sparc_old_sem structure. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c (sem_timedwait): Use sparc_new_sem structure. Bump and afterwards decrease nwaiters. Register __sem_wait_cleanup as cleanup handler. Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to lll_futex_timed_wait. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c (__new_sem_post): Use sparc_new_sem structure. Only wake if nwaiters > 0. Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to lll_futex_wake. (__old_sem_post): New function. * sysdeps/unix/sysv/linux/sparc/sem_wait.c: New file. * sysdeps/unix/sysv/linux/sparc/sem_init.c: New file. * sysdeps/unix/sysv/linux/sparc/sem_timedwait.c: New file. * sysdeps/unix/sysv/linux/sparc/sem_post.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c: Remove. * sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c: Remove. 2007-08-15 Jakub Jelinek <jakub@redhat.com> * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising FE_UNDERFLOW on Niagara CPUs. * sysdeps/sparc/fpu/feholdexcpt.c (feholdexcept): Clear all exceptions.
-rw-r--r--ChangeLog8
-rw-r--r--nptl/ChangeLog35
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h16
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sem_init.c (renamed from nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c)60
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c69
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c112
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sem_wait.c117
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c51
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c100
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c16
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c127
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c1
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c2
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c2
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c2
-rw-r--r--sysdeps/sparc/fpu/feholdexcpt.c6
-rw-r--r--sysdeps/sparc/fpu/fraiseexcpt.c8
17 files changed, 638 insertions, 94 deletions
diff --git a/ChangeLog b/ChangeLog
index acbc8ecf34..fc80eb54cb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2007-08-15 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising
+ FE_UNDERFLOW on Niagara CPUs.
+
+ * sysdeps/sparc/fpu/feholdexcpt.c (feholdexcept): Clear all
+ exceptions.
+
2007-08-14 Jakub Jelinek <jakub@redhat.com>
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_runtime_setup): No
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 04c40c6e24..93f80826ba 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,38 @@
+2007-08-15 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/sparc/internaltypes.h (sparc_new_sem,
+ sparc_old_sem): New structs.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c
+ (__sem_wait_cleanup): New function.
+ (__new_sem_wait): Use sparc_new_sem structure. Bump and afterwards
+ decrease nwaiters. Register __sem_wait_cleanup as cleanup handler.
+ Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to
+ lll_futex_wait.
+ (__old_sem_wait): New function.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c: Include
+ nptl/sysdeps/unix/sysv/linux/sparc version.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c:
+ Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c: Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c
+ (__new_sem_trywait): Use sparc_old_sem structure.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c
+ (sem_timedwait): Use sparc_new_sem structure. Bump and afterwards
+ decrease nwaiters. Register __sem_wait_cleanup as cleanup handler.
+ Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to
+ lll_futex_timed_wait.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c (__new_sem_post):
+ Use sparc_new_sem structure. Only wake if nwaiters > 0. Pass
+ isem->private ^ FUTEX_PRIVATE_FLAG as last argument to
+ lll_futex_wake.
+ (__old_sem_post): New function.
+ * sysdeps/unix/sysv/linux/sparc/sem_wait.c: New file.
+ * sysdeps/unix/sysv/linux/sparc/sem_init.c: New file.
+ * sysdeps/unix/sysv/linux/sparc/sem_timedwait.c: New file.
+ * sysdeps/unix/sysv/linux/sparc/sem_post.c: New file.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c: Remove.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c: Remove.
+
2007-08-14 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h b/nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h
index 4d0ea51723..4f400a3fe3 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/internaltypes.h
@@ -15,4 +15,20 @@ union sparc_pthread_barrier
} s;
};
+struct sparc_new_sem
+{
+ unsigned int value;
+ unsigned char lock;
+ unsigned char private;
+ unsigned char pad[2];
+ unsigned long int nwaiters;
+};
+
+struct sparc_old_sem
+{
+ unsigned int value;
+ unsigned char lock;
+ unsigned char private;
+};
+
#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c b/nptl/sysdeps/unix/sysv/linux/sparc/sem_init.c
index dffd8c7efa..840032a08c 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sem_init.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -18,20 +18,50 @@
02111-1307 USA. */
#include <errno.h>
+#include <string.h>
#include <semaphore.h>
#include <lowlevellock.h>
#include <shlib-compat.h>
#include "semaphoreP.h"
+#include <kernel-features.h>
-struct sparc_sem
+
+int
+__new_sem_init (sem, pshared, value)
+ sem_t *sem;
+ int pshared;
+ unsigned int value;
{
- struct sem s;
- unsigned char lock;
-};
+ /* Parameter sanity check. */
+ if (__builtin_expect (value > SEM_VALUE_MAX, 0))
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+ /* Map to the internal type. */
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) sem;
+ /* Use the values the user provided. */
+ memset (isem, '\0', sizeof (*isem));
+ isem->value = value;
+#ifdef __ASSUME_PRIVATE_FUTEX
+ isem->private = pshared ? 0 : FUTEX_PRIVATE_FLAG;
+#else
+ isem->private = pshared ? 0 : THREAD_GETMEM (THREAD_SELF,
+ header.private_futex);
+#endif
+
+ return 0;
+}
+versioned_symbol (libpthread, __new_sem_init, sem_init, GLIBC_2_1);
+
+
+
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
int
-__new_sem_init (sem, pshared, value)
+attribute_compat_text_section
+__old_sem_init (sem, pshared, value)
sem_t *sem;
int pshared;
unsigned int value;
@@ -44,20 +74,20 @@ __new_sem_init (sem, pshared, value)
}
/* Map to the internal type. */
- struct sparc_sem *isem = (struct sparc_sem *) sem;
+ struct sparc_old_sem *isem = (struct sparc_old_sem *) sem;
/* Use the value the user provided. */
- isem->s.count = value;
-
- isem->lock = 0;
+ memset (isem, '\0', sizeof (*isem));
+ isem->value = value;
- /* We can completely ignore the PSHARED parameter since inter-process
- use needs no special preparation. */
+#ifdef __ASSUME_PRIVATE_FUTEX
+ isem->private = pshared ? 0 : FUTEX_PRIVATE_FLAG;
+#else
+ isem->private = pshared ? 0 : THREAD_GETMEM (THREAD_SELF,
+ header.private_futex);
+#endif
return 0;
}
-versioned_symbol (libpthread, __new_sem_init, sem_init, GLIBC_2_1);
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
-strong_alias (__new_sem_init, __old_sem_init)
compat_symbol (libpthread, __old_sem_init, sem_init, GLIBC_2_0);
#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c
new file mode 100644
index 0000000000..95964d0744
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sem_post.c
@@ -0,0 +1,69 @@
+/* sem_post -- post to a POSIX semaphore. SPARC version.
+ Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ 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
+ 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 <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+
+#include <shlib-compat.h>
+
+int
+__new_sem_post (sem_t *sem)
+{
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) sem;
+
+ int nr = atomic_increment_val (&isem->value);
+ atomic_full_barrier ();
+ if (isem->nwaiters > 0)
+ {
+ int err = lll_futex_wake (&isem->value, 1,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+ 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)
+int
+attribute_compat_text_section
+__old_sem_post (sem_t *sem)
+{
+ struct sparc_old_sem *isem = (struct sparc_old_sem *) sem;
+
+ int nr = atomic_increment_val (&isem->value);
+ int err = lll_futex_wake (&isem->value, 1,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+ if (__builtin_expect (err, 0) < 0)
+ {
+ __set_errno (-err);
+ return -1;
+ }
+ return 0;
+}
+compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c
new file mode 100644
index 0000000000..01952f3f9a
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sem_timedwait.c
@@ -0,0 +1,112 @@
+/* sem_timedwait -- wait on a semaphore. Generic futex-using version.
+ Copyright (C) 2003, 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ 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
+ 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 <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+
+#include <pthreadP.h>
+#include <shlib-compat.h>
+
+
+extern void __sem_wait_cleanup (void *arg) attribute_hidden;
+
+
+int
+sem_timedwait (sem_t *sem, const struct timespec *abstime)
+{
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) sem;
+ int err;
+
+ if (atomic_decrement_if_positive (&isem->value) > 0)
+ return 0;
+
+ if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ atomic_increment (&isem->nwaiters);
+
+ pthread_cleanup_push (__sem_wait_cleanup, isem);
+
+ while (1)
+ {
+ struct timeval tv;
+ struct timespec rt;
+ int sec, nsec;
+
+ /* Get the current time. */
+ __gettimeofday (&tv, NULL);
+
+ /* Compute relative timeout. */
+ sec = abstime->tv_sec - tv.tv_sec;
+ nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+ if (nsec < 0)
+ {
+ nsec += 1000000000;
+ --sec;
+ }
+
+ /* Already timed out? */
+ err = -ETIMEDOUT;
+ if (sec < 0)
+ {
+ __set_errno (ETIMEDOUT);
+ err = -1;
+ break;
+ }
+
+ /* Do wait. */
+ rt.tv_sec = sec;
+ rt.tv_nsec = nsec;
+
+ /* Enable asynchronous cancellation. Required by the standard. */
+ int oldtype = __pthread_enable_asynccancel ();
+
+ err = lll_futex_timed_wait (&isem->value, 0, &rt,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+
+ /* Disable asynchronous cancellation. */
+ __pthread_disable_asynccancel (oldtype);
+
+ if (err != 0 && err != -EWOULDBLOCK)
+ {
+ __set_errno (-err);
+ err = -1;
+ break;
+ }
+
+ if (atomic_decrement_if_positive (&isem->value) > 0)
+ {
+ err = 0;
+ break;
+ }
+ }
+
+ pthread_cleanup_pop (0);
+
+ atomic_decrement (&isem->nwaiters);
+
+ return err;
+}
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sem_wait.c
new file mode 100644
index 0000000000..a846f20601
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sem_wait.c
@@ -0,0 +1,117 @@
+/* sem_wait -- wait on a semaphore. Generic futex-using version.
+ Copyright (C) 2003, 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ 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
+ 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 <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+
+#include <pthreadP.h>
+#include <shlib-compat.h>
+
+
+void
+attribute_hidden
+__sem_wait_cleanup (void *arg)
+{
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) arg;
+
+ atomic_decrement (&isem->nwaiters);
+}
+
+
+int
+__new_sem_wait (sem_t *sem)
+{
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) sem;
+ int err;
+
+ if (atomic_decrement_if_positive (&isem->value) > 0)
+ return 0;
+
+ atomic_increment (&isem->nwaiters);
+
+ pthread_cleanup_push (__sem_wait_cleanup, isem);
+
+ while (1)
+ {
+ /* Enable asynchronous cancellation. Required by the standard. */
+ int oldtype = __pthread_enable_asynccancel ();
+
+ err = lll_futex_wait (&isem->value, 0,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+
+ /* Disable asynchronous cancellation. */
+ __pthread_disable_asynccancel (oldtype);
+
+ if (err != 0 && err != -EWOULDBLOCK)
+ {
+ __set_errno (-err);
+ err = -1;
+ break;
+ }
+
+ if (atomic_decrement_if_positive (&isem->value) > 0)
+ {
+ err = 0;
+ break;
+ }
+ }
+
+ pthread_cleanup_pop (0);
+
+ atomic_decrement (&isem->nwaiters);
+
+ return err;
+}
+versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1);
+
+
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
+int
+attribute_compat_text_section
+__old_sem_wait (sem_t *sem)
+{
+ struct sparc_old_sem *isem = (struct sparc_old_sem *) sem;
+ int err;
+
+ do
+ {
+ if (atomic_decrement_if_positive (&isem->value) > 0)
+ return 0;
+
+ /* Enable asynchronous cancellation. Required by the standard. */
+ int oldtype = __pthread_enable_asynccancel ();
+
+ err = lll_futex_wait (&isem->value, 0,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+
+ /* Disable asynchronous cancellation. */
+ __pthread_disable_asynccancel (oldtype);
+ }
+ while (err == 0 || err == -EWOULDBLOCK);
+
+ __set_errno (-err);
+ return -1;
+}
+
+compat_symbol (libpthread, __old_sem_wait, sem_wait, GLIBC_2_0);
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c
index 527aedfdc7..dbd34f2210 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c
@@ -29,19 +29,51 @@
int
__new_sem_post (sem_t *sem)
{
- int *futex = (int *) sem, nr;
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) sem;
+ int nr;
if (__atomic_is_v9)
- nr = atomic_increment_val (futex);
+ nr = atomic_increment_val (&isem->value);
else
{
- __sparc32_atomic_do_lock24 (futex + 1);
- nr = ++*futex;
- __sparc32_atomic_do_unlock24 (futex + 1);
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ nr = ++(isem->value);
+ __sparc32_atomic_do_unlock24 (&isem->lock);
}
- int err = lll_futex_wake (futex, nr,
- // XYZ check mutex flag
- LLL_SHARED);
+ atomic_full_barrier ();
+ if (isem->nwaiters > 0)
+ {
+ int err = lll_futex_wake (&isem->value, 1,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+ 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)
+int
+attribute_compat_text_section
+__old_sem_post (sem_t *sem)
+{
+ struct sparc_old_sem *isem = (struct sparc_old_sem *) sem;
+ int nr;
+
+ if (__atomic_is_v9)
+ nr = atomic_increment_val (&isem->value);
+ else
+ {
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ nr = ++(isem->value);
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
+ int err = lll_futex_wake (&isem->value, 1,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
if (__builtin_expect (err, 0) < 0)
{
__set_errno (-err);
@@ -49,8 +81,5 @@ __new_sem_post (sem_t *sem)
}
return 0;
}
-versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
-strong_alias (__new_sem_post, __old_sem_post)
compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);
#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c
index efcc9e9aa8..55f3e2e075 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c
@@ -1,5 +1,5 @@
/* sem_timedwait -- wait on a semaphore. SPARC version.
- Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
@@ -28,37 +28,48 @@
#include <shlib-compat.h>
+extern void __sem_wait_cleanup (void *arg) attribute_hidden;
+
+
int
sem_timedwait (sem_t *sem, const struct timespec *abstime)
{
- /* First check for cancellation. */
- CANCELLATION_P (THREAD_SELF);
-
- int *futex = (int *) sem;
- int val;
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) sem;
int err;
+ int val;
- if (*futex > 0)
+ if (__atomic_is_v9)
+ val = atomic_decrement_if_positive (&isem->value);
+ else
{
- if (__atomic_is_v9)
- val = atomic_decrement_if_positive (futex);
- else
- {
- __sparc32_atomic_do_lock24 (futex + 1);
- val = *futex;
- if (val > 0)
- *futex = val - 1;
- __sparc32_atomic_do_unlock24 (futex + 1);
- }
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ val = isem->value;
if (val > 0)
- return 0;
+ isem->value = val - 1;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
}
- err = -EINVAL;
+ if (val > 0)
+ return 0;
+
if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
- goto error_return;
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ if (__atomic_is_v9)
+ atomic_increment (&isem->nwaiters);
+ else
+ {
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ isem->nwaiters++;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
- do
+ pthread_cleanup_push (__sem_wait_cleanup, isem);
+
+ while (1)
{
struct timeval tv;
struct timespec rt;
@@ -79,7 +90,11 @@ sem_timedwait (sem_t *sem, const struct timespec *abstime)
/* Already timed out? */
err = -ETIMEDOUT;
if (sec < 0)
- goto error_return;
+ {
+ __set_errno (ETIMEDOUT);
+ err = -1;
+ break;
+ }
/* Do wait. */
rt.tv_sec = sec;
@@ -88,30 +103,47 @@ sem_timedwait (sem_t *sem, const struct timespec *abstime)
/* Enable asynchronous cancellation. Required by the standard. */
int oldtype = __pthread_enable_asynccancel ();
- err = lll_futex_timed_wait (futex, 0, &rt);
+ err = lll_futex_timed_wait (&isem->value, 0, &rt,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
/* Disable asynchronous cancellation. */
__pthread_disable_asynccancel (oldtype);
if (err != 0 && err != -EWOULDBLOCK)
- goto error_return;
+ {
+ __set_errno (-err);
+ err = -1;
+ break;
+ }
if (__atomic_is_v9)
- val = atomic_decrement_if_positive (futex);
+ val = atomic_decrement_if_positive (&isem->value);
else
{
- __sparc32_atomic_do_lock24 (futex + 1);
- val = *futex;
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ val = isem->value;
if (val > 0)
- *futex = val - 1;
- __sparc32_atomic_do_unlock24 (futex + 1);
+ isem->value = val - 1;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
+
+ if (val > 0)
+ {
+ err = 0;
+ break;
}
}
- while (val <= 0);
- return 0;
+ pthread_cleanup_pop (0);
+
+ if (__atomic_is_v9)
+ atomic_decrement (&isem->nwaiters);
+ else
+ {
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ isem->nwaiters--;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
- error_return:
- __set_errno (-err);
- return -1;
+ return err;
}
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c
index 429494e257..4db89727a7 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c
@@ -1,5 +1,5 @@
/* sem_trywait -- wait on a semaphore. SPARC version.
- Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
@@ -30,20 +30,20 @@
int
__new_sem_trywait (sem_t *sem)
{
- int *futex = (int *) sem;
+ struct sparc_old_sem *isem = (struct sparc_old_sem *) sem;
int val;
- if (*futex > 0)
+ if (isem->value > 0)
{
if (__atomic_is_v9)
- val = atomic_decrement_if_positive (futex);
+ val = atomic_decrement_if_positive (&isem->value);
else
{
- __sparc32_atomic_do_lock24 (futex + 1);
- val = *futex;
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ val = isem->value;
if (val > 0)
- *futex = val - 1;
- __sparc32_atomic_do_unlock24 (futex + 1);
+ isem->value = val - 1;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
}
if (val > 0)
return 0;
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c
index d9fcdcd4ee..3c71c969b8 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c
@@ -1,5 +1,5 @@
-/* sem_wait -- wait on a semaphore. SPARC version.
- Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+/* sem_wait -- wait on a semaphore. Generic futex-using version.
+ Copyright (C) 2003, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
@@ -28,35 +28,135 @@
#include <shlib-compat.h>
+void
+attribute_hidden
+__sem_wait_cleanup (void *arg)
+{
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) arg;
+
+ if (__atomic_is_v9)
+ atomic_decrement (&isem->nwaiters);
+ else
+ {
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ isem->nwaiters--;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
+}
+
+
int
__new_sem_wait (sem_t *sem)
{
- /* First check for cancellation. */
- CANCELLATION_P (THREAD_SELF);
+ struct sparc_new_sem *isem = (struct sparc_new_sem *) sem;
+ int err;
+ int val;
+
+ if (__atomic_is_v9)
+ val = atomic_decrement_if_positive (&isem->value);
+ else
+ {
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ val = isem->value;
+ if (val > 0)
+ isem->value = val - 1;
+ else
+ isem->nwaiters++;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
+
+ if (val > 0)
+ return 0;
+
+ if (__atomic_is_v9)
+ atomic_increment (&isem->nwaiters);
+ else
+ /* Already done above while still holding isem->lock. */;
+
+ pthread_cleanup_push (__sem_wait_cleanup, isem);
+
+ while (1)
+ {
+ /* Enable asynchronous cancellation. Required by the standard. */
+ int oldtype = __pthread_enable_asynccancel ();
+
+ err = lll_futex_wait (&isem->value, 0,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
+
+ /* Disable asynchronous cancellation. */
+ __pthread_disable_asynccancel (oldtype);
+
+ if (err != 0 && err != -EWOULDBLOCK)
+ {
+ __set_errno (-err);
+ err = -1;
+ break;
+ }
+
+ if (__atomic_is_v9)
+ val = atomic_decrement_if_positive (&isem->value);
+ else
+ {
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ val = isem->value;
+ if (val > 0)
+ isem->value = val - 1;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
+
+ if (val > 0)
+ {
+ err = 0;
+ break;
+ }
+ }
+
+ pthread_cleanup_pop (0);
- int *futex = (int *) sem;
+ if (__atomic_is_v9)
+ atomic_decrement (&isem->nwaiters);
+ else
+ {
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ isem->nwaiters--;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
+ }
+
+ return err;
+}
+versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1);
+
+
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
+int
+attribute_compat_text_section
+__old_sem_wait (sem_t *sem)
+{
+ struct sparc_old_sem *isem = (struct sparc_old_sem *) sem;
int err;
+ int val;
do
{
- int val;
if (__atomic_is_v9)
- val = atomic_decrement_if_positive (futex);
+ val = atomic_decrement_if_positive (&isem->value);
else
{
- __sparc32_atomic_do_lock24 (futex + 1);
- val = *futex;
+ __sparc32_atomic_do_lock24 (&isem->lock);
+ val = isem->value;
if (val > 0)
- *futex = val - 1;
- __sparc32_atomic_do_unlock24 (futex + 1);
+ isem->value = val - 1;
+ __sparc32_atomic_do_unlock24 (&isem->lock);
}
+
if (val > 0)
return 0;
/* Enable asynchronous cancellation. Required by the standard. */
int oldtype = __pthread_enable_asynccancel ();
- err = lll_futex_wait (futex, 0);
+ err = lll_futex_wait (futex, 0,
+ isem->private ^ FUTEX_PRIVATE_FLAG);
/* Disable asynchronous cancellation. */
__pthread_disable_asynccancel (oldtype);
@@ -67,8 +167,5 @@ __new_sem_wait (sem_t *sem)
return -1;
}
-versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1);
-#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
-strong_alias (__new_sem_wait, __old_sem_wait)
compat_symbol (libpthread, __old_sem_wait, sem_wait, GLIBC_2_0);
#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c
deleted file mode 100644
index b2ebc4cbb5..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../../../../../sem_init.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c
index 4a6eac88f5..73d7c56675 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c
@@ -1 +1 @@
-#include "../../../sem_post.c"
+#include "../../sem_post.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c
index b2526db02c..03945b7279 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c
@@ -1 +1 @@
-#include "../../../sem_timedwait.c"
+#include "../../sem_timedwait.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c
index 31157f636f..a5dbc5a4b8 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c
@@ -1 +1 @@
-#include "../../../sem_wait.c"
+#include "../../sem_wait.c"
diff --git a/sysdeps/sparc/fpu/feholdexcpt.c b/sysdeps/sparc/fpu/feholdexcpt.c
index 729637ad1b..424855e761 100644
--- a/sysdeps/sparc/fpu/feholdexcpt.c
+++ b/sysdeps/sparc/fpu/feholdexcpt.c
@@ -1,5 +1,5 @@
/* Store current floating-point environment and clear exceptions.
- Copyright (C) 1997, 1998, 2005 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 2005, 2007 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
@@ -26,8 +26,8 @@ feholdexcept (fenv_t *envp)
__fenv_stfsr (*envp);
- /* Set all exceptions to non-stop. */
- tmp = *envp & ~(0x1f << 23);
+ /* Set all exceptions to non-stop and clear all exceptions. */
+ tmp = *envp & ~((0x1f << 23) | FE_ALL_EXCEPT);
__fenv_ldfsr (tmp);
diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c
index cbb8be80ec..b96eeaed28 100644
--- a/sysdeps/sparc/fpu/fraiseexcpt.c
+++ b/sysdeps/sparc/fpu/fraiseexcpt.c
@@ -1,5 +1,5 @@
/* Raise given exceptions.
- Copyright (C) 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1999, 2000, 2002, 2007 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
@@ -26,9 +26,9 @@ int
__feraiseexcept (int excepts)
{
static const struct {
- double zero, one, max, min, sixteen, pi;
+ double zero, one, max, min, pi;
} c = {
- 0.0, 1.0, DBL_MAX, DBL_MIN, 16.0, M_PI
+ 0.0, 1.0, DBL_MAX, DBL_MIN, M_PI
};
double d;
@@ -66,7 +66,7 @@ __feraiseexcept (int excepts)
if ((FE_UNDERFLOW & excepts) != 0)
{
__asm ("" : "=e" (d) : "0" (c.min));
- d /= c.sixteen;
+ d *= d;
__asm __volatile ("" : : "e" (d));
}