Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
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 <stdio.h>
8#include <stdbool.h>
9#include "types.h"
10
11enum map_type {
12 MAP__FUNCTION = 0,
13 MAP__VARIABLE,
14};
15
16#define MAP__NR_TYPES (MAP__VARIABLE + 1)
17
18extern const char *map_type__name[MAP__NR_TYPES];
19
20struct dso;
21struct ip_callchain;
22struct ref_reloc_sym;
23struct map_groups;
24struct machine;
25struct perf_evsel;
26
27struct map {
28 union {
29 struct rb_node rb_node;
30 struct list_head node;
31 };
32 u64 start;
33 u64 end;
34 u8 /* enum map_type */ type;
35 bool referenced;
36 bool erange_warned;
37 u32 priv;
38 u64 pgoff;
39
40 /* ip -> dso rip */
41 u64 (*map_ip)(struct map *, u64);
42 /* dso rip -> ip */
43 u64 (*unmap_ip)(struct map *, u64);
44
45 struct dso *dso;
46 struct map_groups *groups;
47};
48
49struct kmap {
50 struct ref_reloc_sym *ref_reloc_sym;
51 struct map_groups *kmaps;
52};
53
54struct map_groups {
55 struct rb_root maps[MAP__NR_TYPES];
56 struct list_head removed_maps[MAP__NR_TYPES];
57 struct machine *machine;
58};
59
60static inline struct kmap *map__kmap(struct map *self)
61{
62 return (struct kmap *)(self + 1);
63}
64
65static inline u64 map__map_ip(struct map *map, u64 ip)
66{
67 return ip - map->start + map->pgoff;
68}
69
70static inline u64 map__unmap_ip(struct map *map, u64 ip)
71{
72 return ip + map->start - map->pgoff;
73}
74
75static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
76{
77 return ip;
78}
79
80
81/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
82u64 map__rip_2objdump(struct map *map, u64 rip);
83
84struct symbol;
85
86typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
87
88void map__init(struct map *self, enum map_type type,
89 u64 start, u64 end, u64 pgoff, struct dso *dso);
90struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
91 u64 pgoff, u32 pid, char *filename,
92 enum map_type type);
93struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
94void map__delete(struct map *self);
95struct map *map__clone(struct map *self);
96int map__overlap(struct map *l, struct map *r);
97size_t map__fprintf(struct map *self, FILE *fp);
98size_t map__fprintf_dsoname(struct map *map, FILE *fp);
99
100int map__load(struct map *self, symbol_filter_t filter);
101struct symbol *map__find_symbol(struct map *self,
102 u64 addr, symbol_filter_t filter);
103struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
104 symbol_filter_t filter);
105void map__fixup_start(struct map *self);
106void map__fixup_end(struct map *self);
107
108void map__reloc_vmlinux(struct map *self);
109
110size_t __map_groups__fprintf_maps(struct map_groups *mg,
111 enum map_type type, int verbose, FILE *fp);
112void maps__insert(struct rb_root *maps, struct map *map);
113void maps__remove(struct rb_root *maps, struct map *map);
114struct map *maps__find(struct rb_root *maps, u64 addr);
115void map_groups__init(struct map_groups *mg);
116void map_groups__exit(struct map_groups *mg);
117int map_groups__clone(struct map_groups *mg,
118 struct map_groups *parent, enum map_type type);
119size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
120size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);
121
122int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
123 u64 addr);
124
125static inline void map_groups__insert(struct map_groups *mg, struct map *map)
126{
127 maps__insert(&mg->maps[map->type], map);
128 map->groups = mg;
129}
130
131static inline void map_groups__remove(struct map_groups *mg, struct map *map)
132{
133 maps__remove(&mg->maps[map->type], map);
134}
135
136static inline struct map *map_groups__find(struct map_groups *mg,
137 enum map_type type, u64 addr)
138{
139 return maps__find(&mg->maps[type], addr);
140}
141
142struct symbol *map_groups__find_symbol(struct map_groups *mg,
143 enum map_type type, u64 addr,
144 struct map **mapp,
145 symbol_filter_t filter);
146
147struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
148 enum map_type type,
149 const char *name,
150 struct map **mapp,
151 symbol_filter_t filter);
152
153static inline
154struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
155 const char *name, struct map **mapp,
156 symbol_filter_t filter)
157{
158 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
159}
160
161int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
162 int verbose, FILE *fp);
163
164struct map *map_groups__find_by_name(struct map_groups *mg,
165 enum map_type type, const char *name);
166
167void map_groups__flush(struct map_groups *mg);
168
169#endif /* __PERF_MAP_H */