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
11 enum map_type {
12 MAP__FUNCTION = 0,
13 MAP__VARIABLE,
14 };
15
16 #define MAP__NR_TYPES (MAP__VARIABLE + 1)
17
18 extern const char *map_type__name[MAP__NR_TYPES];
19
20 struct dso;
21 struct ip_callchain;
22 struct ref_reloc_sym;
23 struct map_groups;
24 struct machine;
25 struct perf_evsel;
26
27 struct 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 u32 maj, min; /* only valid for MMAP2 record */
40 u64 ino; /* only valid for MMAP2 record */
41 u64 ino_generation;/* only valid for MMAP2 record */
42
43 /* ip -> dso rip */
44 u64 (*map_ip)(struct map *, u64);
45 /* dso rip -> ip */
46 u64 (*unmap_ip)(struct map *, u64);
47
48 struct dso *dso;
49 struct map_groups *groups;
50 };
51
52 struct kmap {
53 struct ref_reloc_sym *ref_reloc_sym;
54 struct map_groups *kmaps;
55 };
56
57 struct map_groups {
58 struct rb_root maps[MAP__NR_TYPES];
59 struct list_head removed_maps[MAP__NR_TYPES];
60 struct machine *machine;
61 };
62
map__kmap(struct map * map)63 static inline struct kmap *map__kmap(struct map *map)
64 {
65 return (struct kmap *)(map + 1);
66 }
67
map__map_ip(struct map * map,u64 ip)68 static inline u64 map__map_ip(struct map *map, u64 ip)
69 {
70 return ip - map->start + map->pgoff;
71 }
72
map__unmap_ip(struct map * map,u64 ip)73 static inline u64 map__unmap_ip(struct map *map, u64 ip)
74 {
75 return ip + map->start - map->pgoff;
76 }
77
identity__map_ip(struct map * map __maybe_unused,u64 ip)78 static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
79 {
80 return ip;
81 }
82
83
84 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
85 u64 map__rip_2objdump(struct map *map, u64 rip);
86
87 struct symbol;
88
89 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
90
91 void map__init(struct map *map, enum map_type type,
92 u64 start, u64 end, u64 pgoff, struct dso *dso);
93 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
94 u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
95 u64 ino_gen,
96 char *filename, enum map_type type);
97 struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
98 void map__delete(struct map *map);
99 struct map *map__clone(struct map *map);
100 int map__overlap(struct map *l, struct map *r);
101 size_t map__fprintf(struct map *map, FILE *fp);
102 size_t map__fprintf_dsoname(struct map *map, FILE *fp);
103
104 int map__load(struct map *map, symbol_filter_t filter);
105 struct symbol *map__find_symbol(struct map *map,
106 u64 addr, symbol_filter_t filter);
107 struct symbol *map__find_symbol_by_name(struct map *map, const char *name,
108 symbol_filter_t filter);
109 void map__fixup_start(struct map *map);
110 void map__fixup_end(struct map *map);
111
112 void map__reloc_vmlinux(struct map *map);
113
114 size_t __map_groups__fprintf_maps(struct map_groups *mg,
115 enum map_type type, int verbose, FILE *fp);
116 void maps__insert(struct rb_root *maps, struct map *map);
117 void maps__remove(struct rb_root *maps, struct map *map);
118 struct map *maps__find(struct rb_root *maps, u64 addr);
119 struct map *maps__first(struct rb_root *maps);
120 struct map *maps__next(struct map *map);
121 void map_groups__init(struct map_groups *mg);
122 void map_groups__exit(struct map_groups *mg);
123 int map_groups__clone(struct map_groups *mg,
124 struct map_groups *parent, enum map_type type);
125 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
126 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);
127
128 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
129 u64 addr);
130
map_groups__insert(struct map_groups * mg,struct map * map)131 static inline void map_groups__insert(struct map_groups *mg, struct map *map)
132 {
133 maps__insert(&mg->maps[map->type], map);
134 map->groups = mg;
135 }
136
map_groups__remove(struct map_groups * mg,struct map * map)137 static inline void map_groups__remove(struct map_groups *mg, struct map *map)
138 {
139 maps__remove(&mg->maps[map->type], map);
140 }
141
map_groups__find(struct map_groups * mg,enum map_type type,u64 addr)142 static inline struct map *map_groups__find(struct map_groups *mg,
143 enum map_type type, u64 addr)
144 {
145 return maps__find(&mg->maps[type], addr);
146 }
147
map_groups__first(struct map_groups * mg,enum map_type type)148 static inline struct map *map_groups__first(struct map_groups *mg,
149 enum map_type type)
150 {
151 return maps__first(&mg->maps[type]);
152 }
153
map_groups__next(struct map * map)154 static inline struct map *map_groups__next(struct map *map)
155 {
156 return maps__next(map);
157 }
158
159 struct symbol *map_groups__find_symbol(struct map_groups *mg,
160 enum map_type type, u64 addr,
161 struct map **mapp,
162 symbol_filter_t filter);
163
164 struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
165 enum map_type type,
166 const char *name,
167 struct map **mapp,
168 symbol_filter_t filter);
169
170 static inline
map_groups__find_function_by_name(struct map_groups * mg,const char * name,struct map ** mapp,symbol_filter_t filter)171 struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
172 const char *name, struct map **mapp,
173 symbol_filter_t filter)
174 {
175 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
176 }
177
178 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
179 int verbose, FILE *fp);
180
181 struct map *map_groups__find_by_name(struct map_groups *mg,
182 enum map_type type, const char *name);
183
184 void map_groups__flush(struct map_groups *mg);
185
186 #endif /* __PERF_MAP_H */
187