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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 u64 reloc;
40 u32 maj, min; /* only valid for MMAP2 record */
41 u64 ino; /* only valid for MMAP2 record */
42 u64 ino_generation;/* only valid for MMAP2 record */
43
44 /* ip -> dso rip */
45 u64 (*map_ip)(struct map *, u64);
46 /* dso rip -> ip */
47 u64 (*unmap_ip)(struct map *, u64);
48
49 struct dso *dso;
50 struct map_groups *groups;
51};
52
53struct kmap {
54 struct ref_reloc_sym *ref_reloc_sym;
55 struct map_groups *kmaps;
56};
57
58struct map_groups {
59 struct rb_root maps[MAP__NR_TYPES];
60 struct list_head removed_maps[MAP__NR_TYPES];
61 struct machine *machine;
62};
63
64static inline struct kmap *map__kmap(struct map *map)
65{
66 return (struct kmap *)(map + 1);
67}
68
69static inline u64 map__map_ip(struct map *map, u64 ip)
70{
71 return ip - map->start + map->pgoff;
72}
73
74static inline u64 map__unmap_ip(struct map *map, u64 ip)
75{
76 return ip + map->start - map->pgoff;
77}
78
79static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
80{
81 return ip;
82}
83
84
85/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
86u64 map__rip_2objdump(struct map *map, u64 rip);
87
88/* objdump address -> memory address */
89u64 map__objdump_2mem(struct map *map, u64 ip);
90
91struct symbol;
92
93/* map__for_each_symbol - iterate over the symbols in the given map
94 *
95 * @map: the 'struct map *' in which symbols itereated
96 * @pos: the 'struct symbol *' to use as a loop cursor
97 * @n: the 'struct rb_node *' to use as a temporary storage
98 * Note: caller must ensure map->dso is not NULL (map is loaded).
99 */
100#define map__for_each_symbol(map, pos, n) \
101 dso__for_each_symbol(map->dso, pos, n, map->type)
102
103typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
104
105void map__init(struct map *map, enum map_type type,
106 u64 start, u64 end, u64 pgoff, struct dso *dso);
107struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
108 u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
109 u64 ino_gen,
110 char *filename, enum map_type type);
111struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
112void map__delete(struct map *map);
113struct map *map__clone(struct map *map);
114int map__overlap(struct map *l, struct map *r);
115size_t map__fprintf(struct map *map, FILE *fp);
116size_t map__fprintf_dsoname(struct map *map, FILE *fp);
117int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
118 FILE *fp);
119
120int map__load(struct map *map, symbol_filter_t filter);
121struct symbol *map__find_symbol(struct map *map,
122 u64 addr, symbol_filter_t filter);
123struct symbol *map__find_symbol_by_name(struct map *map, const char *name,
124 symbol_filter_t filter);
125void map__fixup_start(struct map *map);
126void map__fixup_end(struct map *map);
127
128void map__reloc_vmlinux(struct map *map);
129
130size_t __map_groups__fprintf_maps(struct map_groups *mg,
131 enum map_type type, int verbose, FILE *fp);
132void maps__insert(struct rb_root *maps, struct map *map);
133void maps__remove(struct rb_root *maps, struct map *map);
134struct map *maps__find(struct rb_root *maps, u64 addr);
135struct map *maps__first(struct rb_root *maps);
136struct map *maps__next(struct map *map);
137void map_groups__init(struct map_groups *mg);
138void map_groups__exit(struct map_groups *mg);
139int map_groups__clone(struct map_groups *mg,
140 struct map_groups *parent, enum map_type type);
141size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
142size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);
143
144int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
145 u64 addr);
146
147static inline void map_groups__insert(struct map_groups *mg, struct map *map)
148{
149 maps__insert(&mg->maps[map->type], map);
150 map->groups = mg;
151}
152
153static inline void map_groups__remove(struct map_groups *mg, struct map *map)
154{
155 maps__remove(&mg->maps[map->type], map);
156}
157
158static inline struct map *map_groups__find(struct map_groups *mg,
159 enum map_type type, u64 addr)
160{
161 return maps__find(&mg->maps[type], addr);
162}
163
164static inline struct map *map_groups__first(struct map_groups *mg,
165 enum map_type type)
166{
167 return maps__first(&mg->maps[type]);
168}
169
170static inline struct map *map_groups__next(struct map *map)
171{
172 return maps__next(map);
173}
174
175struct symbol *map_groups__find_symbol(struct map_groups *mg,
176 enum map_type type, u64 addr,
177 struct map **mapp,
178 symbol_filter_t filter);
179
180struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
181 enum map_type type,
182 const char *name,
183 struct map **mapp,
184 symbol_filter_t filter);
185
186struct addr_map_symbol;
187
188int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter);
189
190static inline
191struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
192 const char *name, struct map **mapp,
193 symbol_filter_t filter)
194{
195 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
196}
197
198int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
199 int verbose, FILE *fp);
200
201struct map *map_groups__find_by_name(struct map_groups *mg,
202 enum map_type type, const char *name);
203
204void map_groups__flush(struct map_groups *mg);
205
206#endif /* __PERF_MAP_H */
1/* SPDX-License-Identifier: GPL-2.0 */
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 <stdio.h>
10#include <string.h>
11#include <stdbool.h>
12#include <linux/types.h>
13
14struct dso;
15struct maps;
16struct machine;
17
18struct map {
19 union {
20 struct rb_node rb_node;
21 struct list_head node;
22 };
23 u64 start;
24 u64 end;
25 bool erange_warned:1;
26 bool priv:1;
27 u32 prot;
28 u64 pgoff;
29 u64 reloc;
30
31 /* ip -> dso rip */
32 u64 (*map_ip)(struct map *, u64);
33 /* dso rip -> ip */
34 u64 (*unmap_ip)(struct map *, u64);
35
36 struct dso *dso;
37 refcount_t refcnt;
38 u32 flags;
39};
40
41struct kmap;
42
43struct kmap *__map__kmap(struct map *map);
44struct kmap *map__kmap(struct map *map);
45struct maps *map__kmaps(struct map *map);
46
47static inline u64 map__map_ip(struct map *map, u64 ip)
48{
49 return ip - map->start + map->pgoff;
50}
51
52static inline u64 map__unmap_ip(struct map *map, u64 ip)
53{
54 return ip + map->start - map->pgoff;
55}
56
57static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
58{
59 return ip;
60}
61
62static inline size_t map__size(const struct map *map)
63{
64 return map->end - map->start;
65}
66
67/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
68u64 map__rip_2objdump(struct map *map, u64 rip);
69
70/* objdump address -> memory address */
71u64 map__objdump_2mem(struct map *map, u64 ip);
72
73struct symbol;
74struct thread;
75
76/* map__for_each_symbol - iterate over the symbols in the given map
77 *
78 * @map: the 'struct map *' in which symbols itereated
79 * @pos: the 'struct symbol *' to use as a loop cursor
80 * @n: the 'struct rb_node *' to use as a temporary storage
81 * Note: caller must ensure map->dso is not NULL (map is loaded).
82 */
83#define map__for_each_symbol(map, pos, n) \
84 dso__for_each_symbol(map->dso, pos, n)
85
86/* map__for_each_symbol_with_name - iterate over the symbols in the given map
87 * that have the given name
88 *
89 * @map: the 'struct map *' in which symbols itereated
90 * @sym_name: the symbol name
91 * @pos: the 'struct symbol *' to use as a loop cursor
92 */
93#define __map__for_each_symbol_by_name(map, sym_name, pos) \
94 for (pos = map__find_symbol_by_name(map, sym_name); \
95 pos && \
96 !symbol__match_symbol_name(pos->name, sym_name, \
97 SYMBOL_TAG_INCLUDE__DEFAULT_ONLY); \
98 pos = symbol__next_by_name(pos))
99
100#define map__for_each_symbol_by_name(map, sym_name, pos) \
101 __map__for_each_symbol_by_name(map, sym_name, (pos))
102
103void map__init(struct map *map,
104 u64 start, u64 end, u64 pgoff, struct dso *dso);
105
106struct dso_id;
107
108struct map *map__new(struct machine *machine, u64 start, u64 len,
109 u64 pgoff, struct dso_id *id, u32 prot, u32 flags,
110 char *filename, struct thread *thread);
111struct map *map__new2(u64 start, struct dso *dso);
112void map__delete(struct map *map);
113struct map *map__clone(struct map *map);
114
115static inline struct map *map__get(struct map *map)
116{
117 if (map)
118 refcount_inc(&map->refcnt);
119 return map;
120}
121
122void map__put(struct map *map);
123
124static inline void __map__zput(struct map **map)
125{
126 map__put(*map);
127 *map = NULL;
128}
129
130#define map__zput(map) __map__zput(&map)
131
132size_t map__fprintf(struct map *map, FILE *fp);
133size_t map__fprintf_dsoname(struct map *map, FILE *fp);
134char *map__srcline(struct map *map, u64 addr, struct symbol *sym);
135int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
136 FILE *fp);
137
138int map__load(struct map *map);
139struct symbol *map__find_symbol(struct map *map, u64 addr);
140struct symbol *map__find_symbol_by_name(struct map *map, const char *name);
141void map__fixup_start(struct map *map);
142void map__fixup_end(struct map *map);
143
144int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name,
145 u64 addr);
146
147bool __map__is_kernel(const struct map *map);
148bool __map__is_extra_kernel_map(const struct map *map);
149bool __map__is_bpf_prog(const struct map *map);
150bool __map__is_bpf_image(const struct map *map);
151bool __map__is_ool(const struct map *map);
152
153static inline bool __map__is_kmodule(const struct map *map)
154{
155 return !__map__is_kernel(map) && !__map__is_extra_kernel_map(map) &&
156 !__map__is_bpf_prog(map) && !__map__is_ool(map) &&
157 !__map__is_bpf_image(map);
158}
159
160bool map__has_symbols(const struct map *map);
161
162#define ENTRY_TRAMPOLINE_NAME "__entry_SYSCALL_64_trampoline"
163
164static inline bool is_entry_trampoline(const char *name)
165{
166 return !strcmp(name, ENTRY_TRAMPOLINE_NAME);
167}
168
169static inline bool is_bpf_image(const char *name)
170{
171 return strncmp(name, "bpf_trampoline_", sizeof("bpf_trampoline_") - 1) == 0 ||
172 strncmp(name, "bpf_dispatcher_", sizeof("bpf_dispatcher_") - 1) == 0;
173}
174#endif /* __PERF_MAP_H */