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

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