Peter Zijlstra | 70fbe05 | 2016-09-05 16:08:12 -0300 | [diff] [blame] | 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 | */ |
| 17 | struct 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 | |
| 33 | static 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 | |
| 41 | struct block_range_iter { |
| 42 | struct block_range *start; |
| 43 | struct block_range *end; |
| 44 | }; |
| 45 | |
| 46 | static inline struct block_range *block_range_iter(struct block_range_iter *iter) |
| 47 | { |
| 48 | return iter->start; |
| 49 | } |
| 50 | |
| 51 | static 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 | |
| 60 | static 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 | |
| 67 | extern struct block_range *block_range__find(u64 addr); |
| 68 | extern struct block_range_iter block_range__create(u64 start, u64 end); |
| 69 | extern double block_range__coverage(struct block_range *br); |
| 70 | |
| 71 | #endif /* __PERF_BLOCK_RANGE_H */ |