b3c9ac0846
We need this to know where a symbol in a callchain came from, for various reasons, among them precise annotation from a TUI/GUI tool. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1269459619-982-5-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
#ifndef __PERF_CALLCHAIN_H
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#define __PERF_CALLCHAIN_H
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#include "../perf.h"
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include "util.h"
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#include "symbol.h"
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enum chain_mode {
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CHAIN_NONE,
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CHAIN_FLAT,
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CHAIN_GRAPH_ABS,
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CHAIN_GRAPH_REL
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};
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struct callchain_node {
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struct callchain_node *parent;
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struct list_head brothers;
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struct list_head children;
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struct list_head val;
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struct rb_node rb_node; /* to sort nodes in an rbtree */
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struct rb_root rb_root; /* sorted tree of children */
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unsigned int val_nr;
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u64 hit;
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u64 children_hit;
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};
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struct callchain_param;
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typedef void (*sort_chain_func_t)(struct rb_root *, struct callchain_node *,
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u64, struct callchain_param *);
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struct callchain_param {
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enum chain_mode mode;
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double min_percent;
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sort_chain_func_t sort;
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};
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struct callchain_list {
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u64 ip;
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struct map_symbol ms;
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struct list_head list;
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};
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static inline void callchain_init(struct callchain_node *node)
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{
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INIT_LIST_HEAD(&node->brothers);
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INIT_LIST_HEAD(&node->children);
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INIT_LIST_HEAD(&node->val);
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}
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static inline u64 cumul_hits(struct callchain_node *node)
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{
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return node->hit + node->children_hit;
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}
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int register_callchain_param(struct callchain_param *param);
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int append_chain(struct callchain_node *root, struct ip_callchain *chain,
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struct map_symbol *syms);
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#endif /* __PERF_CALLCHAIN_H */
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