1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_MAPS_H
3 #define __PERF_MAPS_H
4 
5 #include <linux/refcount.h>
6 #include <linux/rbtree.h>
7 #include <stdio.h>
8 #include <stdbool.h>
9 #include <linux/types.h>
10 #include "rwsem.h"
11 
12 struct ref_reloc_sym;
13 struct machine;
14 struct map;
15 struct maps;
16 struct thread;
17 
18 struct map *maps__find(struct maps *maps, u64 addr);
19 struct map *maps__first(struct maps *maps);
20 struct map *map__next(struct map *map);
21 
22 #define maps__for_each_entry(maps, map) \
23 	for (map = maps__first(maps); map; map = map__next(map))
24 
25 #define maps__for_each_entry_safe(maps, map, next) \
26 	for (map = maps__first(maps), next = map__next(map); map; map = next, next = map__next(map))
27 
28 struct maps {
29 	struct rb_root      entries;
30 	struct rw_semaphore lock;
31 	struct machine	 *machine;
32 	struct map	 *last_search_by_name;
33 	struct map	 **maps_by_name;
34 	refcount_t	 refcnt;
35 	unsigned int	 nr_maps;
36 	unsigned int	 nr_maps_allocated;
37 #ifdef HAVE_LIBUNWIND_SUPPORT
38 	void				*addr_space;
39 	struct unwind_libunwind_ops	*unwind_libunwind_ops;
40 #endif
41 };
42 
43 #define KMAP_NAME_LEN 256
44 
45 struct kmap {
46 	struct ref_reloc_sym *ref_reloc_sym;
47 	struct maps	     *kmaps;
48 	char		     name[KMAP_NAME_LEN];
49 };
50 
51 struct maps *maps__new(struct machine *machine);
52 void maps__delete(struct maps *maps);
53 bool maps__empty(struct maps *maps);
54 
maps__get(struct maps * maps)55 static inline struct maps *maps__get(struct maps *maps)
56 {
57 	if (maps)
58 		refcount_inc(&maps->refcnt);
59 	return maps;
60 }
61 
62 void maps__put(struct maps *maps);
63 int maps__clone(struct thread *thread, struct maps *parent);
64 size_t maps__fprintf(struct maps *maps, FILE *fp);
65 
66 void maps__insert(struct maps *maps, struct map *map);
67 
68 void maps__remove(struct maps *maps, struct map *map);
69 
70 struct symbol *maps__find_symbol(struct maps *maps, u64 addr, struct map **mapp);
71 struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, struct map **mapp);
72 
73 struct addr_map_symbol;
74 
75 int maps__find_ams(struct maps *maps, struct addr_map_symbol *ams);
76 
77 int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp);
78 
79 struct map *maps__find_by_name(struct maps *maps, const char *name);
80 
81 int maps__merge_in(struct maps *kmaps, struct map *new_map);
82 
83 void __maps__sort_by_name(struct maps *maps);
84 
85 #endif // __PERF_MAPS_H
86