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-rw-r--r--sysdeps/unix/sysv/linux/getcpu.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/getcpu.c b/sysdeps/unix/sysv/linux/getcpu.c
new file mode 100644
index 0000000000..59c6cc4a14
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getcpu.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2007-2018 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>
+#include <sched.h>
+#include <sysdep.h>
+
+#ifdef HAVE_GETCPU_VSYSCALL
+# define HAVE_VSYSCALL
+#endif
+#include <sysdep-vdso.h>
+
+int
+__getcpu (unsigned int *cpu, unsigned int *node)
+{
+#ifdef __NR_getcpu
+  return INLINE_VSYSCALL (getcpu, 3, cpu, node, NULL);
+#else
+  __set_errno (ENOSYS);
+  return -1;
+#endif
+}
+weak_alias (__getcpu, getcpu)
+libc_hidden_def (__getcpu)