1 files changed, 33 insertions, 0 deletions

diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
new file mode 100644
index 000000000000..fa1cd2f71fd3
--- /dev/null
+++ b/tools/perf/util/callchain.h
@@ -0,0 +1,33 @@
+#ifndef __PERF_CALLCHAIN_H
+#define __PERF_CALLCHAIN_H
+
+#include "../perf.h"
+#include "list.h"
+#include "rbtree.h"
+
+
+struct callchain_node {
+        struct callchain_node   *parent;
+        struct list_head        brothers;
+        struct list_head        children;
+        struct list_head        val;
+        struct rb_node          rb_node;
+        int                     val_nr;
+        int                     hit;
+};
+
+struct callchain_list {
+        unsigned long           ip;
+        struct list_head        list;
+};
+
+static inline void callchain_init(struct callchain_node *node)
+{
+        INIT_LIST_HEAD(&node->brothers);
+        INIT_LIST_HEAD(&node->children);
+        INIT_LIST_HEAD(&node->val);
+}
+
+void append_chain(struct callchain_node *root, struct ip_callchain *chain);
+void sort_chain_to_rbtree(struct rb_root *rb_root, struct callchain_node *node);
+#endif