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-rw-r--r--tools/perf/util/callchain.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
new file mode 100644
index 00000000000..7812122bea1
--- /dev/null
+++ b/tools/perf/util/callchain.h
@@ -0,0 +1,54 @@
+#ifndef __PERF_CALLCHAIN_H
+#define __PERF_CALLCHAIN_H
+
+#include "../perf.h"
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include "symbol.h"
+
+enum chain_mode {
+ CHAIN_FLAT,
+ CHAIN_GRAPH_ABS,
+ CHAIN_GRAPH_REL
+};
+
+struct callchain_node {
+ struct callchain_node *parent;
+ struct list_head brothers;
+ struct list_head children;
+ struct list_head val;
+ struct rb_node rb_node; /* to sort nodes in an rbtree */
+ struct rb_root rb_root; /* sorted tree of children */
+ unsigned int val_nr;
+ u64 hit;
+ u64 cumul_hit; /* hit + hits of children */
+};
+
+struct callchain_param;
+
+typedef void (*sort_chain_func_t)(struct rb_root *, struct callchain_node *,
+ u64, struct callchain_param *);
+
+struct callchain_param {
+ enum chain_mode mode;
+ double min_percent;
+ sort_chain_func_t sort;
+};
+
+struct callchain_list {
+ u64 ip;
+ struct symbol *sym;
+ 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);
+}
+
+int register_callchain_param(struct callchain_param *param);
+void append_chain(struct callchain_node *root, struct ip_callchain *chain,
+ struct symbol **syms);
+#endif