Root/tools/perf/util/map.h

1#ifndef __PERF_MAP_H
2#define __PERF_MAP_H
3
4#include <linux/compiler.h>
5#include <linux/list.h>
6#include <linux/rbtree.h>
7#include <linux/types.h>
8
9enum map_type {
10    MAP__FUNCTION = 0,
11    MAP__VARIABLE,
12};
13
14#define MAP__NR_TYPES (MAP__VARIABLE + 1)
15
16extern const char *map_type__name[MAP__NR_TYPES];
17
18struct dso;
19struct ref_reloc_sym;
20struct map_groups;
21
22struct map {
23    union {
24        struct rb_node rb_node;
25        struct list_head node;
26    };
27    u64 start;
28    u64 end;
29    enum map_type type;
30    u64 pgoff;
31
32    /* ip -> dso rip */
33    u64 (*map_ip)(struct map *, u64);
34    /* dso rip -> ip */
35    u64 (*unmap_ip)(struct map *, u64);
36
37    struct dso *dso;
38};
39
40struct kmap {
41    struct ref_reloc_sym *ref_reloc_sym;
42    struct map_groups *kmaps;
43};
44
45static inline struct kmap *map__kmap(struct map *self)
46{
47    return (struct kmap *)(self + 1);
48}
49
50static inline u64 map__map_ip(struct map *map, u64 ip)
51{
52    return ip - map->start + map->pgoff;
53}
54
55static inline u64 map__unmap_ip(struct map *map, u64 ip)
56{
57    return ip + map->start - map->pgoff;
58}
59
60static inline u64 identity__map_ip(struct map *map __used, u64 ip)
61{
62    return ip;
63}
64
65
66/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
67u64 map__rip_2objdump(struct map *map, u64 rip);
68u64 map__objdump_2ip(struct map *map, u64 addr);
69
70struct symbol;
71struct mmap_event;
72
73typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
74
75void map__init(struct map *self, enum map_type type,
76           u64 start, u64 end, u64 pgoff, struct dso *dso);
77struct map *map__new(struct mmap_event *event, enum map_type,
78             char *cwd, int cwdlen);
79void map__delete(struct map *self);
80struct map *map__clone(struct map *self);
81int map__overlap(struct map *l, struct map *r);
82size_t map__fprintf(struct map *self, FILE *fp);
83
84int map__load(struct map *self, symbol_filter_t filter);
85struct symbol *map__find_symbol(struct map *self,
86                u64 addr, symbol_filter_t filter);
87struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
88                    symbol_filter_t filter);
89void map__fixup_start(struct map *self);
90void map__fixup_end(struct map *self);
91
92void map__reloc_vmlinux(struct map *self);
93
94#endif /* __PERF_MAP_H */
95

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