1 | /* SPDX-License-Identifier: GPL-2.0 */ |
---|---|
2 | #ifndef __PERF_BLOCK_RANGE_H |
3 | #define __PERF_BLOCK_RANGE_H |
4 | |
5 | #include <stdbool.h> |
6 | #include <linux/rbtree.h> |
7 | #include <linux/types.h> |
8 | |
9 | struct symbol; |
10 | |
11 | /* |
12 | * struct block_range - non-overlapping parts of basic blocks |
13 | * @node: treenode |
14 | * @start: inclusive start of range |
15 | * @end: inclusive end of range |
16 | * @is_target: @start is a jump target |
17 | * @is_branch: @end is a branch instruction |
18 | * @coverage: number of blocks that cover this range |
19 | * @taken: number of times the branch is taken (requires @is_branch) |
20 | * @pred: number of times the taken branch was predicted |
21 | */ |
22 | struct block_range { |
23 | struct rb_node node; |
24 | |
25 | struct symbol *sym; |
26 | |
27 | u64 start; |
28 | u64 end; |
29 | |
30 | int is_target, is_branch; |
31 | |
32 | u64 coverage; |
33 | u64 entry; |
34 | u64 taken; |
35 | u64 pred; |
36 | }; |
37 | |
38 | static inline struct block_range *block_range__next(struct block_range *br) |
39 | { |
40 | struct rb_node *n = rb_next(&br->node); |
41 | if (!n) |
42 | return NULL; |
43 | return rb_entry(n, struct block_range, node); |
44 | } |
45 | |
46 | struct block_range_iter { |
47 | struct block_range *start; |
48 | struct block_range *end; |
49 | }; |
50 | |
51 | static inline struct block_range *block_range_iter(struct block_range_iter *iter) |
52 | { |
53 | return iter->start; |
54 | } |
55 | |
56 | static inline bool block_range_iter__next(struct block_range_iter *iter) |
57 | { |
58 | if (iter->start == iter->end) |
59 | return false; |
60 | |
61 | iter->start = block_range__next(br: iter->start); |
62 | return true; |
63 | } |
64 | |
65 | static inline bool block_range_iter__valid(struct block_range_iter *iter) |
66 | { |
67 | if (!iter->start || !iter->end) |
68 | return false; |
69 | return true; |
70 | } |
71 | |
72 | extern struct block_range *block_range__find(u64 addr); |
73 | extern struct block_range_iter block_range__create(u64 start, u64 end); |
74 | extern double block_range__coverage(struct block_range *br); |
75 | |
76 | #endif /* __PERF_BLOCK_RANGE_H */ |
77 |