ARC: OProfile support

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Robert Richter <rric@kernel.org>
Cc: oprofile-list@lists.sf.net
Reviewed-by: James Hogan <james.hogan@imgtec.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/arc/oprofile/common.c b/arch/arc/oprofile/common.c
new file mode 100644
index 000000000000..c80fcad4a5a7
--- /dev/null
+++ b/arch/arc/oprofile/common.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Based on orig code from @author John Levon <levon@movementarian.org>
+ */
+
+#include <linux/oprofile.h>
+#include <linux/perf_event.h>
+
+int __init oprofile_arch_init(struct oprofile_operations *ops)
+{
+	/*
+	 * A failure here, forces oprofile core to switch to Timer based PC
+	 * sampling, which will happen if say perf is not enabled/available
+	 */
+	return oprofile_perf_init(ops);
+}
+
+void oprofile_arch_exit(void)
+{
+	oprofile_perf_exit();
+}