summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/map.h
blob: e4e259c3ba167d77836e67d85c63e6d110f61550 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
#ifndef __PERF_MAP_H
#define __PERF_MAP_H

#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/rbtree.h>
#include <stdio.h>
#include <stdbool.h>
#include "types.h"

enum map_type {
	MAP__FUNCTION = 0,
	MAP__VARIABLE,
};

#define MAP__NR_TYPES (MAP__VARIABLE + 1)

extern const char *map_type__name[MAP__NR_TYPES];

struct dso;
struct ip_callchain;
struct ref_reloc_sym;
struct map_groups;
struct machine;
struct perf_evsel;

struct map {
	union {
		struct rb_node	rb_node;
		struct list_head node;
	};
	u64			start;
	u64			end;
	u8 /* enum map_type */	type;
	bool			referenced;
	bool			erange_warned;
	u32			priv;
	u64			pgoff;
	u32			maj, min; /* only valid for MMAP2 record */
	u64			ino;      /* only valid for MMAP2 record */
	u64			ino_generation;/* only valid for MMAP2 record */

	/* ip -> dso rip */
	u64			(*map_ip)(struct map *, u64);
	/* dso rip -> ip */
	u64			(*unmap_ip)(struct map *, u64);

	struct dso		*dso;
	struct map_groups	*groups;
};

struct kmap {
	struct ref_reloc_sym	*ref_reloc_sym;
	struct map_groups	*kmaps;
};

struct map_groups {
	struct rb_root	 maps[MAP__NR_TYPES];
	struct list_head removed_maps[MAP__NR_TYPES];
	struct machine	 *machine;
};

static inline struct kmap *map__kmap(struct map *map)
{
	return (struct kmap *)(map + 1);
}

static inline u64 map__map_ip(struct map *map, u64 ip)
{
	return ip - map->start + map->pgoff;
}

static inline u64 map__unmap_ip(struct map *map, u64 ip)
{
	return ip + map->start - map->pgoff;
}

static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
{
	return ip;
}


/* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
u64 map__rip_2objdump(struct map *map, u64 rip);

/* objdump address -> memory address */
u64 map__objdump_2mem(struct map *map, u64 ip);

struct symbol;

typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);

void map__init(struct map *map, enum map_type type,
	       u64 start, u64 end, u64 pgoff, struct dso *dso);
struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
		     u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
		     u64 ino_gen,
		     char *filename, enum map_type type);
struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
void map__delete(struct map *map);
struct map *map__clone(struct map *map);
int map__overlap(struct map *l, struct map *r);
size_t map__fprintf(struct map *map, FILE *fp);
size_t map__fprintf_dsoname(struct map *map, FILE *fp);

int map__load(struct map *map, symbol_filter_t filter);
struct symbol *map__find_symbol(struct map *map,
				u64 addr, symbol_filter_t filter);
struct symbol *map__find_symbol_by_name(struct map *map, const char *name,
					symbol_filter_t filter);
void map__fixup_start(struct map *map);
void map__fixup_end(struct map *map);

void map__reloc_vmlinux(struct map *map);

size_t __map_groups__fprintf_maps(struct map_groups *mg,
				  enum map_type type, int verbose, FILE *fp);
void maps__insert(struct rb_root *maps, struct map *map);
void maps__remove(struct rb_root *maps, struct map *map);
struct map *maps__find(struct rb_root *maps, u64 addr);
struct map *maps__first(struct rb_root *maps);
struct map *maps__next(struct map *map);
void map_groups__init(struct map_groups *mg);
void map_groups__exit(struct map_groups *mg);
int map_groups__clone(struct map_groups *mg,
		      struct map_groups *parent, enum map_type type);
size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);

int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
				     u64 addr);

static inline void map_groups__insert(struct map_groups *mg, struct map *map)
{
	maps__insert(&mg->maps[map->type], map);
	map->groups = mg;
}

static inline void map_groups__remove(struct map_groups *mg, struct map *map)
{
	maps__remove(&mg->maps[map->type], map);
}

static inline struct map *map_groups__find(struct map_groups *mg,
					   enum map_type type, u64 addr)
{
	return maps__find(&mg->maps[type], addr);
}

static inline struct map *map_groups__first(struct map_groups *mg,
					    enum map_type type)
{
	return maps__first(&mg->maps[type]);
}

static inline struct map *map_groups__next(struct map *map)
{
	return maps__next(map);
}

struct symbol *map_groups__find_symbol(struct map_groups *mg,
				       enum map_type type, u64 addr,
				       struct map **mapp,
				       symbol_filter_t filter);

struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
					       enum map_type type,
					       const char *name,
					       struct map **mapp,
					       symbol_filter_t filter);

struct addr_map_symbol;

int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter);

static inline
struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
						 const char *name, struct map **mapp,
						 symbol_filter_t filter)
{
	return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
}

int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
				   int verbose, FILE *fp);

struct map *map_groups__find_by_name(struct map_groups *mg,
				     enum map_type type, const char *name);

void map_groups__flush(struct map_groups *mg);

#endif /* __PERF_MAP_H */
OpenPOWER on IntegriCloud