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 #include <internal/rc_check.h> 12 13 struct ref_reloc_sym; 14 struct machine; 15 struct map; 16 struct maps; 17 struct thread; 18 19 struct map_rb_node { 20 struct rb_node rb_node; 21 struct map *map; 22 }; 23 24 struct map_list_node { 25 struct list_head node; 26 struct map *map; 27 }; 28 29 static inline struct map_list_node *map_list_node__new(void) 30 { 31 return malloc(sizeof(struct map_list_node)); 32 } 33 34 struct map_rb_node *maps__first(struct maps *maps); 35 struct map_rb_node *map_rb_node__next(struct map_rb_node *node); 36 struct map_rb_node *maps__find_node(struct maps *maps, struct map *map); 37 struct map *maps__find(struct maps *maps, u64 addr); 38 39 #define maps__for_each_entry(maps, map) \ 40 for (map = maps__first(maps); map; map = map_rb_node__next(map)) 41 42 #define maps__for_each_entry_safe(maps, map, next) \ 43 for (map = maps__first(maps), next = map_rb_node__next(map); map; \ 44 map = next, next = map_rb_node__next(map)) 45 46 DECLARE_RC_STRUCT(maps) { 47 struct rb_root entries; 48 struct rw_semaphore lock; 49 struct machine *machine; 50 struct map *last_search_by_name; 51 struct map **maps_by_name; 52 refcount_t refcnt; 53 unsigned int nr_maps; 54 unsigned int nr_maps_allocated; 55 #ifdef HAVE_LIBUNWIND_SUPPORT 56 void *addr_space; 57 const struct unwind_libunwind_ops *unwind_libunwind_ops; 58 #endif 59 }; 60 61 #define KMAP_NAME_LEN 256 62 63 struct kmap { 64 struct ref_reloc_sym *ref_reloc_sym; 65 struct maps *kmaps; 66 char name[KMAP_NAME_LEN]; 67 }; 68 69 struct maps *maps__new(struct machine *machine); 70 bool maps__empty(struct maps *maps); 71 int maps__clone(struct thread *thread, struct maps *parent); 72 73 struct maps *maps__get(struct maps *maps); 74 void maps__put(struct maps *maps); 75 76 static inline void __maps__zput(struct maps **map) 77 { 78 maps__put(*map); 79 *map = NULL; 80 } 81 82 #define maps__zput(map) __maps__zput(&map) 83 84 static inline struct rb_root *maps__entries(struct maps *maps) 85 { 86 return &RC_CHK_ACCESS(maps)->entries; 87 } 88 89 static inline struct machine *maps__machine(struct maps *maps) 90 { 91 return RC_CHK_ACCESS(maps)->machine; 92 } 93 94 static inline struct rw_semaphore *maps__lock(struct maps *maps) 95 { 96 return &RC_CHK_ACCESS(maps)->lock; 97 } 98 99 static inline struct map **maps__maps_by_name(struct maps *maps) 100 { 101 return RC_CHK_ACCESS(maps)->maps_by_name; 102 } 103 104 static inline unsigned int maps__nr_maps(const struct maps *maps) 105 { 106 return RC_CHK_ACCESS(maps)->nr_maps; 107 } 108 109 static inline refcount_t *maps__refcnt(struct maps *maps) 110 { 111 return &RC_CHK_ACCESS(maps)->refcnt; 112 } 113 114 #ifdef HAVE_LIBUNWIND_SUPPORT 115 static inline void *maps__addr_space(struct maps *maps) 116 { 117 return RC_CHK_ACCESS(maps)->addr_space; 118 } 119 120 static inline const struct unwind_libunwind_ops *maps__unwind_libunwind_ops(const struct maps *maps) 121 { 122 return RC_CHK_ACCESS(maps)->unwind_libunwind_ops; 123 } 124 #endif 125 126 size_t maps__fprintf(struct maps *maps, FILE *fp); 127 128 int maps__insert(struct maps *maps, struct map *map); 129 void maps__remove(struct maps *maps, struct map *map); 130 131 struct symbol *maps__find_symbol(struct maps *maps, u64 addr, struct map **mapp); 132 struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, struct map **mapp); 133 134 struct addr_map_symbol; 135 136 int maps__find_ams(struct maps *maps, struct addr_map_symbol *ams); 137 138 int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp); 139 140 struct map *maps__find_by_name(struct maps *maps, const char *name); 141 142 int maps__merge_in(struct maps *kmaps, struct map *new_map); 143 144 void __maps__sort_by_name(struct maps *maps); 145 146 void maps__fixup_end(struct maps *maps); 147 148 #endif // __PERF_MAPS_H 149