* 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.

1 files changed, 69 insertions, 0 deletions

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