nptl: Consolidate sem_init implementations

Current sparc32 sem_init and default one only differ on sem.newsem.pad
initialization.  This patch removes sparc32 and sparc32v9 sem_init arch
specific implementation and set sparc32 to use nptl default one.
The default implementation sets the required sem.newsem.pad to 0 (which
is ununsed in other architectures).

I checked on i686 and a sparc32v9 build.

        * nptl/sem_init.c (sem_init): Init pad value to 0.
        * sysdeps/sparc/sparc32/sem_init.c: Remove file.
        * sysdeps/sparc/sparc32/sparcv9/sem_init.c: Likewise.

4 files changed, 8 insertions, 86 deletions

diff --git a/ChangeLog b/ChangeLog
index 99af3a7..33b84d5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2016-09-15  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
+	* nptl/sem_init.c (__new_sem_init): Init pad value to 0.
+	* sysdeps/sparc/sparc32/sem_open.c: Remove file.
+	* sysdeps/sparc/sparc32/sparcv9/sem_open.c: Likewise.
+
+2016-09-15  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+
 	[BZ #18243]
 	* rt/Makefile (test): Add tst-shm-cancel.
 	* rt/tst-shm-cancel.c: New file.
diff --git a/nptl/sem_init.c b/nptl/sem_init.c
index be0f27d..9380a21 100644
--- a/nptl/sem_init.c
+++ b/nptl/sem_init.c
@@ -49,6 +49,8 @@ __new_sem_init (sem_t *sem, int pshared, unsigned int value)
   isem->data = value;
 #else
   isem->value = value << SEM_VALUE_SHIFT;
+  /* pad is used as a mutex on pre-v9 sparc and ignored otherwise.  */
+  isem->pad = 0;
   isem->nwaiters = 0;
 #endif
 
diff --git a/sysdeps/sparc/sparc32/sem_init.c b/sysdeps/sparc/sparc32/sem_init.c
deleted file mode 100644
index ae49ec5..0000000
--- a/sysdeps/sparc/sparc32/sem_init.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/* Copyright (C) 2002-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <semaphore.h>
-#include <shlib-compat.h>
-#include "semaphoreP.h"
-#include <futex-internal.h>
-
-
-int
-__new_sem_init (sem_t *sem, int pshared, unsigned int value)
-{
-  /* Parameter sanity check.  */
-  if (__glibc_unlikely (value > SEM_VALUE_MAX))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  pshared = pshared != 0 ? PTHREAD_PROCESS_SHARED : PTHREAD_PROCESS_PRIVATE;
-  int err = futex_supports_pshared (pshared);
-  if (err != 0)
-    {
-      __set_errno (err);
-      return -1;
-    }
-
-  /* Map to the internal type.  */
-  struct new_sem *isem = (struct new_sem *) sem;
-
-  /* Use the values the caller provided.  */
-  isem->value = value << SEM_VALUE_SHIFT;
-  isem->pad = 0;
-  isem->nwaiters = 0;
-
-  isem->private = (pshared == PTHREAD_PROCESS_PRIVATE
-		   ? FUTEX_PRIVATE : FUTEX_SHARED);
-
-  return 0;
-}
-versioned_symbol (libpthread, __new_sem_init, sem_init, GLIBC_2_1);
-
-
-
-#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
-int
-attribute_compat_text_section
-__old_sem_init (sem_t *sem, int pshared, unsigned int value)
-{
-  /* Parameter sanity check.  */
-  if (__glibc_unlikely (value > SEM_VALUE_MAX))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  /* Map to the internal type.  */
-  struct old_sem *isem = (struct old_sem *) sem;
-
-  /* Use the value the user provided.  */
-  isem->value = value;
-
-  /* We cannot store the PSHARED attribute.  So we always use the
-     operations needed for shared semaphores.  */
-
-  return 0;
-}
-compat_symbol (libpthread, __old_sem_init, sem_init, GLIBC_2_0);
-#endif
diff --git a/sysdeps/sparc/sparc32/sparcv9/sem_init.c b/sysdeps/sparc/sparc32/sparcv9/sem_init.c
deleted file mode 100644
index c90d1b5..0000000
--- a/sysdeps/sparc/sparc32/sparcv9/sem_init.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <nptl/sem_init.c>