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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/nptl/pthread_attr_init.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-zack/build-layout-experiment.tar.gz
glibc-zack/build-layout-experiment.tar.xz
glibc-zack/build-layout-experiment.zip
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/nptl/pthread_attr_init.c')
-rw-r--r--REORG.TODO/nptl/pthread_attr_init.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/pthread_attr_init.c b/REORG.TODO/nptl/pthread_attr_init.c
new file mode 100644
index 0000000000..77998ea9ac
--- /dev/null
+++ b/REORG.TODO/nptl/pthread_attr_init.c
@@ -0,0 +1,85 @@
+/* Copyright (C) 2002-2017 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 <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include "pthreadP.h"
+
+#include <shlib-compat.h>
+
+
+struct pthread_attr *__attr_list;
+int __attr_list_lock = LLL_LOCK_INITIALIZER;
+
+
+int
+__pthread_attr_init_2_1 (pthread_attr_t *attr)
+{
+  struct pthread_attr *iattr;
+
+  /* Many elements are initialized to zero so let us do it all at
+     once.  This also takes care of clearing the bytes which are not
+     internally used.  */
+  memset (attr, '\0', __SIZEOF_PTHREAD_ATTR_T);
+
+  assert (sizeof (*attr) >= sizeof (struct pthread_attr));
+  iattr = (struct pthread_attr *) attr;
+
+  /* Default guard size specified by the standard.  */
+  iattr->guardsize = __getpagesize ();
+
+  return 0;
+}
+versioned_symbol (libpthread, __pthread_attr_init_2_1, pthread_attr_init,
+		  GLIBC_2_1);
+
+
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
+int
+__pthread_attr_init_2_0 (pthread_attr_t *attr)
+{
+  /* This code is specific to the old LinuxThread code which has a too
+     small pthread_attr_t definition.  The struct looked like
+     this:  */
+  struct old_attr
+  {
+    int detachstate;
+    int schedpolicy;
+    struct sched_param schedparam;
+    int inheritsched;
+    int scope;
+  };
+  struct pthread_attr *iattr;
+
+  /* Many elements are initialized to zero so let us do it all at
+     once.  This also takes care of clearing the bytes which are not
+     internally used.  */
+  memset (attr, '\0', sizeof (struct old_attr));
+
+  iattr = (struct pthread_attr *) attr;
+  iattr->flags |= ATTR_FLAG_OLDATTR;
+
+  /* We cannot enqueue the attribute because that member is not in the
+     old attribute structure.  */
+  return 0;
+}
+compat_symbol (libpthread, __pthread_attr_init_2_0, pthread_attr_init,
+	       GLIBC_2_0);
+#endif