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 11 enum map_type { 12 MAP__FUNCTION = 0, 13 MAP__VARIABLE, 14 }; 15 16 #define MAP__NR_TYPES (MAP__VARIABLE + 1) 17 18 extern const char *map_type__name[MAP__NR_TYPES]; 19 20 struct dso; 21 struct ip_callchain; 22 struct ref_reloc_sym; 23 struct map_groups; 24 struct machine; 25 struct perf_evsel; 26 27 struct 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 40 /* ip -> dso rip */ 41 u64 (*map_ip)(struct map *, u64); 42 /* dso rip -> ip */ 43 u64 (*unmap_ip)(struct map *, u64); 44 45 struct dso *dso; 46 struct map_groups *groups; 47 }; 48 49 struct kmap { 50 struct ref_reloc_sym *ref_reloc_sym; 51 struct map_groups *kmaps; 52 }; 53 54 struct map_groups { 55 struct rb_root maps[MAP__NR_TYPES]; 56 struct list_head removed_maps[MAP__NR_TYPES]; 57 struct machine *machine; 58 }; 59 60 static inline struct kmap *map__kmap(struct map *map) 61 { 62 return (struct kmap *)(map + 1); 63 } 64 65 static inline u64 map__map_ip(struct map *map, u64 ip) 66 { 67 return ip - map->start + map->pgoff; 68 } 69 70 static inline u64 map__unmap_ip(struct map *map, u64 ip) 71 { 72 return ip + map->start - map->pgoff; 73 } 74 75 static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip) 76 { 77 return ip; 78 } 79 80 81 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */ 82 u64 map__rip_2objdump(struct map *map, u64 rip); 83 84 struct symbol; 85 86 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); 87 88 void map__init(struct map *map, enum map_type type, 89 u64 start, u64 end, u64 pgoff, struct dso *dso); 90 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, 91 u64 pgoff, u32 pid, char *filename, 92 enum map_type type); 93 struct map *map__new2(u64 start, struct dso *dso, enum map_type type); 94 void map__delete(struct map *map); 95 struct map *map__clone(struct map *map); 96 int map__overlap(struct map *l, struct map *r); 97 size_t map__fprintf(struct map *map, FILE *fp); 98 size_t map__fprintf_dsoname(struct map *map, FILE *fp); 99 100 int map__load(struct map *map, symbol_filter_t filter); 101 struct symbol *map__find_symbol(struct map *map, 102 u64 addr, symbol_filter_t filter); 103 struct symbol *map__find_symbol_by_name(struct map *map, const char *name, 104 symbol_filter_t filter); 105 void map__fixup_start(struct map *map); 106 void map__fixup_end(struct map *map); 107 108 void map__reloc_vmlinux(struct map *map); 109 110 size_t __map_groups__fprintf_maps(struct map_groups *mg, 111 enum map_type type, int verbose, FILE *fp); 112 void maps__insert(struct rb_root *maps, struct map *map); 113 void maps__remove(struct rb_root *maps, struct map *map); 114 struct map *maps__find(struct rb_root *maps, u64 addr); 115 struct map *maps__first(struct rb_root *maps); 116 struct map *maps__next(struct map *map); 117 void map_groups__init(struct map_groups *mg); 118 void map_groups__exit(struct map_groups *mg); 119 int map_groups__clone(struct map_groups *mg, 120 struct map_groups *parent, enum map_type type); 121 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp); 122 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp); 123 124 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, 125 u64 addr); 126 127 static inline void map_groups__insert(struct map_groups *mg, struct map *map) 128 { 129 maps__insert(&mg->maps[map->type], map); 130 map->groups = mg; 131 } 132 133 static inline void map_groups__remove(struct map_groups *mg, struct map *map) 134 { 135 maps__remove(&mg->maps[map->type], map); 136 } 137 138 static inline struct map *map_groups__find(struct map_groups *mg, 139 enum map_type type, u64 addr) 140 { 141 return maps__find(&mg->maps[type], addr); 142 } 143 144 static inline struct map *map_groups__first(struct map_groups *mg, 145 enum map_type type) 146 { 147 return maps__first(&mg->maps[type]); 148 } 149 150 static inline struct map *map_groups__next(struct map *map) 151 { 152 return maps__next(map); 153 } 154 155 struct symbol *map_groups__find_symbol(struct map_groups *mg, 156 enum map_type type, u64 addr, 157 struct map **mapp, 158 symbol_filter_t filter); 159 160 struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, 161 enum map_type type, 162 const char *name, 163 struct map **mapp, 164 symbol_filter_t filter); 165 166 static inline 167 struct symbol *map_groups__find_function_by_name(struct map_groups *mg, 168 const char *name, struct map **mapp, 169 symbol_filter_t filter) 170 { 171 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter); 172 } 173 174 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, 175 int verbose, FILE *fp); 176 177 struct map *map_groups__find_by_name(struct map_groups *mg, 178 enum map_type type, const char *name); 179 180 void map_groups__flush(struct map_groups *mg); 181 182 #endif /* __PERF_MAP_H */ 183