mirror of https://gitee.com/openkylin/linux.git
77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_BLOCK_RANGE_H
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#define __PERF_BLOCK_RANGE_H
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#include <stdbool.h>
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#include <linux/rbtree.h>
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#include <linux/types.h>
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struct symbol;
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/*
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* struct block_range - non-overlapping parts of basic blocks
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* @node: treenode
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* @start: inclusive start of range
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* @end: inclusive end of range
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* @is_target: @start is a jump target
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* @is_branch: @end is a branch instruction
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* @coverage: number of blocks that cover this range
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* @taken: number of times the branch is taken (requires @is_branch)
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* @pred: number of times the taken branch was predicted
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*/
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struct block_range {
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struct rb_node node;
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struct symbol *sym;
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u64 start;
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u64 end;
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int is_target, is_branch;
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u64 coverage;
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u64 entry;
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u64 taken;
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u64 pred;
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};
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static inline struct block_range *block_range__next(struct block_range *br)
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{
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struct rb_node *n = rb_next(&br->node);
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if (!n)
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return NULL;
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return rb_entry(n, struct block_range, node);
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}
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struct block_range_iter {
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struct block_range *start;
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struct block_range *end;
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};
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static inline struct block_range *block_range_iter(struct block_range_iter *iter)
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{
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return iter->start;
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}
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static inline bool block_range_iter__next(struct block_range_iter *iter)
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{
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if (iter->start == iter->end)
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return false;
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iter->start = block_range__next(iter->start);
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return true;
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}
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static inline bool block_range_iter__valid(struct block_range_iter *iter)
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{
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if (!iter->start || !iter->end)
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return false;
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return true;
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}
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extern struct block_range *block_range__find(u64 addr);
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extern struct block_range_iter block_range__create(u64 start, u64 end);
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extern double block_range__coverage(struct block_range *br);
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#endif /* __PERF_BLOCK_RANGE_H */
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