1
2#ifndef __PERF_MAP_H
3#define __PERF_MAP_H
4
5#include <linux/refcount.h>
6#include <linux/compiler.h>
7#include <linux/list.h>
8#include <linux/rbtree.h>
9#include <pthread.h>
10#include <stdio.h>
11#include <string.h>
12#include <stdbool.h>
13#include <linux/types.h>
14#include "rwsem.h"
15
16struct dso;
17struct ip_callchain;
18struct ref_reloc_sym;
19struct map_groups;
20struct machine;
21struct perf_evsel;
22
23struct map {
24 union {
25 struct rb_node rb_node;
26 struct list_head node;
27 };
28 u64 start;
29 u64 end;
30 bool erange_warned;
31 u32 priv;
32 u32 prot;
33 u32 flags;
34 u64 pgoff;
35 u64 reloc;
36 u32 maj, min;
37 u64 ino;
38 u64 ino_generation;
39
40
41 u64 (*map_ip)(struct map *, u64);
42
43 u64 (*unmap_ip)(struct map *, u64);
44
45 struct dso *dso;
46 struct map_groups *groups;
47 refcount_t refcnt;
48};
49
50#define KMAP_NAME_LEN 256
51
52struct kmap {
53 struct ref_reloc_sym *ref_reloc_sym;
54 struct map_groups *kmaps;
55 char name[KMAP_NAME_LEN];
56};
57
58struct maps {
59 struct rb_root entries;
60 struct rw_semaphore lock;
61};
62
63struct map_groups {
64 struct maps maps;
65 struct machine *machine;
66 refcount_t refcnt;
67};
68
69struct map_groups *map_groups__new(struct machine *machine);
70void map_groups__delete(struct map_groups *mg);
71bool map_groups__empty(struct map_groups *mg);
72
73static inline struct map_groups *map_groups__get(struct map_groups *mg)
74{
75 if (mg)
76 refcount_inc(&mg->refcnt);
77 return mg;
78}
79
80void map_groups__put(struct map_groups *mg);
81
82struct kmap *__map__kmap(struct map *map);
83struct kmap *map__kmap(struct map *map);
84struct map_groups *map__kmaps(struct map *map);
85
86static inline u64 map__map_ip(struct map *map, u64 ip)
87{
88 return ip - map->start + map->pgoff;
89}
90
91static inline u64 map__unmap_ip(struct map *map, u64 ip)
92{
93 return ip + map->start - map->pgoff;
94}
95
96static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
97{
98 return ip;
99}
100
101static inline size_t map__size(const struct map *map)
102{
103 return map->end - map->start;
104}
105
106
107u64 map__rip_2objdump(struct map *map, u64 rip);
108
109
110u64 map__objdump_2mem(struct map *map, u64 ip);
111
112struct symbol;
113struct thread;
114
115
116
117
118
119
120
121
122#define map__for_each_symbol(map, pos, n) \
123 dso__for_each_symbol(map->dso, pos, n)
124
125
126
127
128
129
130
131
132#define __map__for_each_symbol_by_name(map, sym_name, pos) \
133 for (pos = map__find_symbol_by_name(map, sym_name); \
134 pos && \
135 !symbol__match_symbol_name(pos->name, sym_name, \
136 SYMBOL_TAG_INCLUDE__DEFAULT_ONLY); \
137 pos = symbol__next_by_name(pos))
138
139#define map__for_each_symbol_by_name(map, sym_name, pos) \
140 __map__for_each_symbol_by_name(map, sym_name, (pos))
141
142void map__init(struct map *map,
143 u64 start, u64 end, u64 pgoff, struct dso *dso);
144struct map *map__new(struct machine *machine, u64 start, u64 len,
145 u64 pgoff, u32 d_maj, u32 d_min, u64 ino,
146 u64 ino_gen, u32 prot, u32 flags,
147 char *filename, struct thread *thread);
148struct map *map__new2(u64 start, struct dso *dso);
149void map__delete(struct map *map);
150struct map *map__clone(struct map *map);
151
152static inline struct map *map__get(struct map *map)
153{
154 if (map)
155 refcount_inc(&map->refcnt);
156 return map;
157}
158
159void map__put(struct map *map);
160
161static inline void __map__zput(struct map **map)
162{
163 map__put(*map);
164 *map = NULL;
165}
166
167#define map__zput(map) __map__zput(&map)
168
169size_t map__fprintf(struct map *map, FILE *fp);
170size_t map__fprintf_dsoname(struct map *map, FILE *fp);
171char *map__srcline(struct map *map, u64 addr, struct symbol *sym);
172int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
173 FILE *fp);
174
175int map__load(struct map *map);
176struct symbol *map__find_symbol(struct map *map, u64 addr);
177struct symbol *map__find_symbol_by_name(struct map *map, const char *name);
178void map__fixup_start(struct map *map);
179void map__fixup_end(struct map *map);
180
181void map__reloc_vmlinux(struct map *map);
182
183void maps__insert(struct maps *maps, struct map *map);
184void maps__remove(struct maps *maps, struct map *map);
185struct map *maps__find(struct maps *maps, u64 addr);
186struct map *maps__first(struct maps *maps);
187struct map *map__next(struct map *map);
188struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
189 struct map **mapp);
190void map_groups__init(struct map_groups *mg, struct machine *machine);
191void map_groups__exit(struct map_groups *mg);
192int map_groups__clone(struct thread *thread,
193 struct map_groups *parent);
194size_t map_groups__fprintf(struct map_groups *mg, FILE *fp);
195
196int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name,
197 u64 addr);
198
199static inline void map_groups__insert(struct map_groups *mg, struct map *map)
200{
201 maps__insert(&mg->maps, map);
202 map->groups = mg;
203}
204
205static inline void map_groups__remove(struct map_groups *mg, struct map *map)
206{
207 maps__remove(&mg->maps, map);
208}
209
210static inline struct map *map_groups__find(struct map_groups *mg, u64 addr)
211{
212 return maps__find(&mg->maps, addr);
213}
214
215struct map *map_groups__first(struct map_groups *mg);
216
217static inline struct map *map_groups__next(struct map *map)
218{
219 return map__next(map);
220}
221
222struct symbol *map_groups__find_symbol(struct map_groups *mg,
223 u64 addr, struct map **mapp);
224
225struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
226 const char *name,
227 struct map **mapp);
228
229struct addr_map_symbol;
230
231int map_groups__find_ams(struct addr_map_symbol *ams);
232
233int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
234 FILE *fp);
235
236struct map *map_groups__find_by_name(struct map_groups *mg, const char *name);
237
238bool __map__is_kernel(const struct map *map);
239bool __map__is_extra_kernel_map(const struct map *map);
240
241static inline bool __map__is_kmodule(const struct map *map)
242{
243 return !__map__is_kernel(map) && !__map__is_extra_kernel_map(map);
244}
245
246bool map__has_symbols(const struct map *map);
247
248#define ENTRY_TRAMPOLINE_NAME "__entry_SYSCALL_64_trampoline"
249
250static inline bool is_entry_trampoline(const char *name)
251{
252 return !strcmp(name, ENTRY_TRAMPOLINE_NAME);
253}
254
255#endif
256