Fix compilation with uclibc

[ust.git] / include / ust / compat.h

diff --git a/include/ust/compat.h b/include/ust/compat.h
new file mode 100644 (file)
index 0000000..c896e72
--- /dev/null
+++ b/include/ust/compat.h
@@ -0,0 +1,35 @@
+#ifndef _UST_COMPAT_H
+#define _UST_COMPAT_H
+
+/*
+ * Copyright (C) 2011   Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This 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.
+ *
+ * This 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <sys/syscall.h>
+
+#ifdef __UCLIBC__
+#define __getcpu(cpu, node, cache)     syscall(__NR_getcpu, cpu, node, cache)
+static inline
+int sched_getcpu(void)
+{
+       int c, s;
+
+       s = __getcpu(&c, NULL, NULL);
+       return (s == -1) ? s : c;
+}
+#endif /* __UCLIBC__ */
+#endif /* _UST_COMPAT_H */