From 0a2aba1397f90fa65c293ab856d18579ae14b77f Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 13 Jun 2011 10:24:46 -0400
Subject: [PATCH] Fix compilation with uclibc

Reported-by: Khem Raj <raj.khem@gmail.com>
Reported-by: Dexuan Cui <dexuan.cui@intel.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---
 include/Makefile.am  |  1 +
 include/ust/compat.h | 35 +++++++++++++++++++++++++++++++++++
 libust/tracer.h      |  1 +
 3 files changed, 37 insertions(+)
 create mode 100644 include/ust/compat.h

diff --git a/include/Makefile.am b/include/Makefile.am
index bd649b6b..6b128fad 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -10,6 +10,7 @@ noinst_HEADERS = \
 	usterr.h \
 	ust_snprintf.h \
 	usterr_signal_safe.h \
+	ust/compat.h \
 	ust/config.h \
 	ust/core.h \
 	ust/marker-internal.h \
diff --git a/include/ust/compat.h b/include/ust/compat.h
new file mode 100644
index 00000000..c896e728
--- /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 */
diff --git a/libust/tracer.h b/libust/tracer.h
index 03049aa3..4f72d7ad 100644
--- a/libust/tracer.h
+++ b/libust/tracer.h
@@ -30,6 +30,7 @@
 #include <ust/marker-internal.h>
 #include <ust/probe-internal.h>
 #include <ust/core.h>
+#include <ust/compat.h>
 #include "channels.h"
 #include "tracercore.h"
 #include "tracerconst.h"
-- 
2.34.1