powerpc: floor/floorf refactor

[thirdparty/glibc.git] / nptl / pthread_attr_setstack.c

diff --git a/nptl/pthread_attr_setstack.c b/nptl/pthread_attr_setstack.c
index 811ab6979167644ffabcfd0b6577d8d31b5b93e5..8c3b1dee4e3de07fbd160dc0eb0c9d86e223f325 100644 (file)
--- a/nptl/pthread_attr_setstack.c
+++ b/nptl/pthread_attr_setstack.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -13,35 +13,85 @@
    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.  */
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
-#include <assert.h>
 #include <errno.h>
 #include <limits.h>
 #include "pthreadP.h"
 
 
+#ifndef NEW_VERNUM
+# define NEW_VERNUM GLIBC_2_3_3
+#endif
+
+
 int
-__pthread_attr_setstack (attr, stackaddr, stacksize)
-     pthread_attr_t *attr;
-     void *stackaddr;
-     size_t stacksize;
+__pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
+                        size_t stacksize)
 {
   struct pthread_attr *iattr;
 
-  assert (sizeof (*attr) >= sizeof (struct pthread_attr));
   iattr = (struct pthread_attr *) attr;
 
   /* Catch invalid sizes.  */
-  if (stacksize < PTHREAD_STACK_MIN)
-    return EINVAL;
+  int ret = check_stacksize_attr (stacksize);
+  if (ret)
+    return ret;
+
+#ifdef EXTRA_PARAM_CHECKS
+  EXTRA_PARAM_CHECKS;
+#endif
 
   iattr->stacksize = stacksize;
+#if _STACK_GROWS_DOWN
   iattr->stackaddr = (char *) stackaddr + stacksize;
+#else
+  iattr->stackaddr = (char *) stackaddr;
+#endif
   iattr->flags |= ATTR_FLAG_STACKADDR;
 
   return 0;
 }
+
+#if PTHREAD_STACK_MIN == 16384
 strong_alias (__pthread_attr_setstack, pthread_attr_setstack)
+#else
+# include <shlib-compat.h>
+versioned_symbol (libpthread, __pthread_attr_setstack, pthread_attr_setstack,
+                 NEW_VERNUM);
+
+# if SHLIB_COMPAT(libpthread, GLIBC_2_2, NEW_VERNUM)
+
+int
+__old_pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
+                            size_t stacksize)
+{
+  struct pthread_attr *iattr;
+
+  iattr = (struct pthread_attr *) attr;
+
+  /* Catch invalid sizes.  */
+  if (stacksize < 16384)
+    return EINVAL;
+
+#  ifdef EXTRA_PARAM_CHECKS
+  EXTRA_PARAM_CHECKS;
+#  endif
+
+  iattr->stacksize = stacksize;
+#if _STACK_GROWS_DOWN
+  iattr->stackaddr = (char *) stackaddr + stacksize;
+#else
+  iattr->stackaddr = (char *) stackaddr;
+#endif
+  iattr->flags |= ATTR_FLAG_STACKADDR;
+
+  return 0;
+}
+
+compat_symbol (libpthread, __old_pthread_attr_setstack, pthread_attr_setstack,
+              GLIBC_2_2);
+# endif
+
+#endif