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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef __PERF_CALLCHAIN_H
2#define __PERF_CALLCHAIN_H
3
4#include "../perf.h"
5#include <linux/list.h>
6#include <linux/rbtree.h>
7#include "util.h"
8#include "symbol.h"
9
10enum chain_mode {
11 CHAIN_NONE,
12 CHAIN_FLAT,
13 CHAIN_GRAPH_ABS,
14 CHAIN_GRAPH_REL
15};
16
17struct callchain_node {
18 struct callchain_node *parent;
19 struct list_head brothers;
20 struct list_head children;
21 struct list_head val;
22 struct rb_node rb_node; /* to sort nodes in an rbtree */
23 struct rb_root rb_root; /* sorted tree of children */
24 unsigned int val_nr;
25 u64 hit;
26 u64 children_hit;
27};
28
29struct callchain_param;
30
31typedef void (*sort_chain_func_t)(struct rb_root *, struct callchain_node *,
32 u64, struct callchain_param *);
33
34struct callchain_param {
35 enum chain_mode mode;
36 double min_percent;
37 sort_chain_func_t sort;
38};
39
40struct callchain_list {
41 u64 ip;
42 struct symbol *sym;
43 struct list_head list;
44};
45
46static inline void callchain_init(struct callchain_node *node)
47{
48 INIT_LIST_HEAD(&node->brothers);
49 INIT_LIST_HEAD(&node->children);
50 INIT_LIST_HEAD(&node->val);
51}
52
53static inline u64 cumul_hits(struct callchain_node *node)
54{
55 return node->hit + node->children_hit;
56}
57
58int register_callchain_param(struct callchain_param *param);
59void append_chain(struct callchain_node *root, struct ip_callchain *chain,
60 struct symbol **syms);
61#endif