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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 ip_callchain;
16struct ref_reloc_sym;
17struct map_groups;
18struct machine;
19struct evsel;
20
21struct map {
22 union {
23 struct rb_node rb_node;
24 struct list_head node;
25 };
26 struct rb_node rb_node_name;
27 u64 start;
28 u64 end;
29 bool erange_warned;
30 u32 priv;
31 u32 prot;
32 u32 flags;
33 u64 pgoff;
34 u64 reloc;
35 u32 maj, min; /* only valid for MMAP2 record */
36 u64 ino; /* only valid for MMAP2 record */
37 u64 ino_generation;/* only valid for MMAP2 record */
38
39 /* ip -> dso rip */
40 u64 (*map_ip)(struct map *, u64);
41 /* dso rip -> ip */
42 u64 (*unmap_ip)(struct map *, u64);
43
44 struct dso *dso;
45 struct map_groups *groups;
46 refcount_t refcnt;
47};
48
49struct kmap;
50
51struct kmap *__map__kmap(struct map *map);
52struct kmap *map__kmap(struct map *map);
53struct map_groups *map__kmaps(struct map *map);
54
55static inline u64 map__map_ip(struct map *map, u64 ip)
56{
57 return ip - map->start + map->pgoff;
58}
59
60static inline u64 map__unmap_ip(struct map *map, u64 ip)
61{
62 return ip + map->start - map->pgoff;
63}
64
65static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
66{
67 return ip;
68}
69
70static inline size_t map__size(const struct map *map)
71{
72 return map->end - map->start;
73}
74
75/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
76u64 map__rip_2objdump(struct map *map, u64 rip);
77
78/* objdump address -> memory address */
79u64 map__objdump_2mem(struct map *map, u64 ip);
80
81struct symbol;
82struct thread;
83
84/* map__for_each_symbol - iterate over the symbols in the given map
85 *
86 * @map: the 'struct map *' in which symbols itereated
87 * @pos: the 'struct symbol *' to use as a loop cursor
88 * @n: the 'struct rb_node *' to use as a temporary storage
89 * Note: caller must ensure map->dso is not NULL (map is loaded).
90 */
91#define map__for_each_symbol(map, pos, n) \
92 dso__for_each_symbol(map->dso, pos, n)
93
94/* map__for_each_symbol_with_name - iterate over the symbols in the given map
95 * that have the given name
96 *
97 * @map: the 'struct map *' in which symbols itereated
98 * @sym_name: the symbol name
99 * @pos: the 'struct symbol *' to use as a loop cursor
100 */
101#define __map__for_each_symbol_by_name(map, sym_name, pos) \
102 for (pos = map__find_symbol_by_name(map, sym_name); \
103 pos && \
104 !symbol__match_symbol_name(pos->name, sym_name, \
105 SYMBOL_TAG_INCLUDE__DEFAULT_ONLY); \
106 pos = symbol__next_by_name(pos))
107
108#define map__for_each_symbol_by_name(map, sym_name, pos) \
109 __map__for_each_symbol_by_name(map, sym_name, (pos))
110
111void map__init(struct map *map,
112 u64 start, u64 end, u64 pgoff, struct dso *dso);
113struct map *map__new(struct machine *machine, u64 start, u64 len,
114 u64 pgoff, u32 d_maj, u32 d_min, u64 ino,
115 u64 ino_gen, u32 prot, u32 flags,
116 char *filename, struct thread *thread);
117struct map *map__new2(u64 start, struct dso *dso);
118void map__delete(struct map *map);
119struct map *map__clone(struct map *map);
120
121static inline struct map *map__get(struct map *map)
122{
123 if (map)
124 refcount_inc(&map->refcnt);
125 return map;
126}
127
128void map__put(struct map *map);
129
130static inline void __map__zput(struct map **map)
131{
132 map__put(*map);
133 *map = NULL;
134}
135
136#define map__zput(map) __map__zput(&map)
137
138size_t map__fprintf(struct map *map, FILE *fp);
139size_t map__fprintf_dsoname(struct map *map, FILE *fp);
140char *map__srcline(struct map *map, u64 addr, struct symbol *sym);
141int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
142 FILE *fp);
143
144struct srccode_state;
145
146int map__fprintf_srccode(struct map *map, u64 addr,
147 FILE *fp, struct srccode_state *state);
148
149int map__load(struct map *map);
150struct symbol *map__find_symbol(struct map *map, u64 addr);
151struct symbol *map__find_symbol_by_name(struct map *map, const char *name);
152void map__fixup_start(struct map *map);
153void map__fixup_end(struct map *map);
154
155void map__reloc_vmlinux(struct map *map);
156
157int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name,
158 u64 addr);
159
160bool __map__is_kernel(const struct map *map);
161bool __map__is_extra_kernel_map(const struct map *map);
162bool __map__is_bpf_prog(const struct map *map);
163
164static inline bool __map__is_kmodule(const struct map *map)
165{
166 return !__map__is_kernel(map) && !__map__is_extra_kernel_map(map) &&
167 !__map__is_bpf_prog(map);
168}
169
170bool map__has_symbols(const struct map *map);
171
172#define ENTRY_TRAMPOLINE_NAME "__entry_SYSCALL_64_trampoline"
173
174static inline bool is_entry_trampoline(const char *name)
175{
176 return !strcmp(name, ENTRY_TRAMPOLINE_NAME);
177}
178
179#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)(const struct map *, u64);
33 /* dso rip -> ip */
34 u64 (*unmap_ip)(const 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
47/* ip -> dso rip */
48u64 map__map_ip(const struct map *map, u64 ip);
49/* dso rip -> ip */
50u64 map__unmap_ip(const struct map *map, u64 ip);
51/* Returns ip */
52u64 identity__map_ip(const struct map *map __maybe_unused, u64 ip);
53
54static inline size_t map__size(const struct map *map)
55{
56 return map->end - map->start;
57}
58
59/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
60u64 map__rip_2objdump(struct map *map, u64 rip);
61
62/* objdump address -> memory address */
63u64 map__objdump_2mem(struct map *map, u64 ip);
64
65struct symbol;
66struct thread;
67
68/* map__for_each_symbol - iterate over the symbols in the given map
69 *
70 * @map: the 'struct map *' in which symbols are iterated
71 * @pos: the 'struct symbol *' to use as a loop cursor
72 * @n: the 'struct rb_node *' to use as a temporary storage
73 * Note: caller must ensure map->dso is not NULL (map is loaded).
74 */
75#define map__for_each_symbol(map, pos, n) \
76 dso__for_each_symbol(map->dso, pos, n)
77
78/* map__for_each_symbol_with_name - iterate over the symbols in the given map
79 * that have the given name
80 *
81 * @map: the 'struct map *' in which symbols are iterated
82 * @sym_name: the symbol name
83 * @pos: the 'struct symbol *' to use as a loop cursor
84 */
85#define __map__for_each_symbol_by_name(map, sym_name, pos) \
86 for (pos = map__find_symbol_by_name(map, sym_name); \
87 pos && \
88 !symbol__match_symbol_name(pos->name, sym_name, \
89 SYMBOL_TAG_INCLUDE__DEFAULT_ONLY); \
90 pos = symbol__next_by_name(pos))
91
92#define map__for_each_symbol_by_name(map, sym_name, pos) \
93 __map__for_each_symbol_by_name(map, sym_name, (pos))
94
95void map__init(struct map *map,
96 u64 start, u64 end, u64 pgoff, struct dso *dso);
97
98struct dso_id;
99struct build_id;
100
101struct map *map__new(struct machine *machine, u64 start, u64 len,
102 u64 pgoff, struct dso_id *id, u32 prot, u32 flags,
103 struct build_id *bid, char *filename, struct thread *thread);
104struct map *map__new2(u64 start, struct dso *dso);
105void map__delete(struct map *map);
106struct map *map__clone(struct map *map);
107
108static inline struct map *map__get(struct map *map)
109{
110 if (map)
111 refcount_inc(&map->refcnt);
112 return map;
113}
114
115void map__put(struct map *map);
116
117static inline void __map__zput(struct map **map)
118{
119 map__put(*map);
120 *map = NULL;
121}
122
123#define map__zput(map) __map__zput(&map)
124
125size_t map__fprintf(struct map *map, FILE *fp);
126size_t map__fprintf_dsoname(struct map *map, FILE *fp);
127char *map__srcline(struct map *map, u64 addr, struct symbol *sym);
128int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix,
129 FILE *fp);
130
131int map__load(struct map *map);
132struct symbol *map__find_symbol(struct map *map, u64 addr);
133struct symbol *map__find_symbol_by_name(struct map *map, const char *name);
134void map__fixup_start(struct map *map);
135void map__fixup_end(struct map *map);
136
137int map__set_kallsyms_ref_reloc_sym(struct map *map, const char *symbol_name,
138 u64 addr);
139
140bool __map__is_kernel(const struct map *map);
141bool __map__is_extra_kernel_map(const struct map *map);
142bool __map__is_bpf_prog(const struct map *map);
143bool __map__is_bpf_image(const struct map *map);
144bool __map__is_ool(const struct map *map);
145
146static inline bool __map__is_kmodule(const struct map *map)
147{
148 return !__map__is_kernel(map) && !__map__is_extra_kernel_map(map) &&
149 !__map__is_bpf_prog(map) && !__map__is_ool(map) &&
150 !__map__is_bpf_image(map);
151}
152
153bool map__has_symbols(const struct map *map);
154
155bool map__contains_symbol(const struct map *map, const struct symbol *sym);
156
157#define ENTRY_TRAMPOLINE_NAME "__entry_SYSCALL_64_trampoline"
158
159static inline bool is_entry_trampoline(const char *name)
160{
161 return !strcmp(name, ENTRY_TRAMPOLINE_NAME);
162}
163
164static inline bool is_bpf_image(const char *name)
165{
166 return strncmp(name, "bpf_trampoline_", sizeof("bpf_trampoline_") - 1) == 0 ||
167 strncmp(name, "bpf_dispatcher_", sizeof("bpf_dispatcher_") - 1) == 0;
168}
169
170static inline int is_anon_memory(const char *filename)
171{
172 return !strcmp(filename, "//anon") ||
173 !strncmp(filename, "/dev/zero", sizeof("/dev/zero") - 1) ||
174 !strncmp(filename, "/anon_hugepage", sizeof("/anon_hugepage") - 1);
175}
176
177static inline int is_no_dso_memory(const char *filename)
178{
179 return !strncmp(filename, "[stack", 6) ||
180 !strncmp(filename, "/SYSV", 5) ||
181 !strcmp(filename, "[heap]");
182}
183#endif /* __PERF_MAP_H */