NPTL: Refactor cpu_set_t validation to be sysdeps-controlled

This removes Linuxisms related to cpu_set_t validation from the
generic NPTL code and puts them into a new sysdeps header file.

1 files changed, 32 insertions, 0 deletions

diff --git a/nptl/check-cpuset.h b/nptl/check-cpuset.h
new file mode 100644
index 0000000..315bdf2
--- /dev/null
+++ b/nptl/check-cpuset.h
@@ -0,0 +1,32 @@
+/* Validate cpu_set_t values for NPTL.  Stub version.
+   Copyright (C) 2015 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
+   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>
+
+/* Returns 0 if CS and SZ are valid values for the cpuset and cpuset size
+   respectively.  Otherwise it returns an error number.  */
+static inline int
+check_cpuset_attr (const cpu_set_t *cs, const size_t sz)
+{
+  if (sz == 0)
+    return 0;
+
+  /* This means pthread_attr_setaffinity will return ENOSYS, which
+     is the right thing when the cpu_set_t features are not available.  */
+  return ENOSYS;
+}