LXR linux/tools/perf/util/block-range.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __PERF_BLOCK_RANGE_H
   3#define __PERF_BLOCK_RANGE_H
   4
   5#include "symbol.h"
   6
   7/*
   8 * struct block_range - non-overlapping parts of basic blocks
   9 * @node:       treenode
  10 * @start:      inclusive start of range
  11 * @end:        inclusive end of range
  12 * @is_target:  @start is a jump target
  13 * @is_branch:  @end is a branch instruction
  14 * @coverage:   number of blocks that cover this range
  15 * @taken:      number of times the branch is taken (requires @is_branch)
  16 * @pred:       number of times the taken branch was predicted
  17 */
  18struct block_range {
  19        struct rb_node node;
  20
  21        struct symbol *sym;
  22
  23        u64 start;
  24        u64 end;
  25
  26        int is_target, is_branch;
  27
  28        u64 coverage;
  29        u64 entry;
  30        u64 taken;
  31        u64 pred;
  32};
  33
  34static inline struct block_range *block_range__next(struct block_range *br)
  35{
  36        struct rb_node *n = rb_next(&br->node);
  37        if (!n)
  38                return NULL;
  39        return rb_entry(n, struct block_range, node);
  40}
  41
  42struct block_range_iter {
  43        struct block_range *start;
  44        struct block_range *end;
  45};
  46
  47static inline struct block_range *block_range_iter(struct block_range_iter *iter)
  48{
  49        return iter->start;
  50}
  51
  52static inline bool block_range_iter__next(struct block_range_iter *iter)
  53{
  54        if (iter->start == iter->end)
  55                return false;
  56
  57        iter->start = block_range__next(iter->start);
  58        return true;
  59}
  60
  61static inline bool block_range_iter__valid(struct block_range_iter *iter)
  62{
  63        if (!iter->start || !iter->end)
  64                return false;
  65        return true;
  66}
  67
  68extern struct block_range *block_range__find(u64 addr);
  69extern struct block_range_iter block_range__create(u64 start, u64 end);
  70extern double block_range__coverage(struct block_range *br);
  71
  72#endif /* __PERF_BLOCK_RANGE_H */
  73