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 <linux/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 u64 reloc; 40 u32 maj, min; /* only valid for MMAP2 record */ 41 u64 ino; /* only valid for MMAP2 record */ 42 u64 ino_generation;/* only valid for MMAP2 record */ 43 44 /* ip -> dso rip */ 45 u64 (*map_ip)(struct map *, u64); 46 /* dso rip -> ip */ 47 u64 (*unmap_ip)(struct map *, u64); 48 49 struct dso *dso; 50 struct map_groups *groups; 51 }; 52 53 struct kmap { 54 struct ref_reloc_sym *ref_reloc_sym; 55 struct map_groups *kmaps; 56 }; 57 58 struct map_groups { 59 struct rb_root maps[MAP__NR_TYPES]; 60 struct list_head removed_maps[MAP__NR_TYPES]; 61 struct machine *machine; 62 int refcnt; 63 }; 64 65 struct map_groups *map_groups__new(void); 66 void map_groups__delete(struct map_groups *mg); 67 68 static inline struct map_groups *map_groups__get(struct map_groups *mg) 69 { 70 ++mg->refcnt; 71 return mg; 72 } 73 74 void map_groups__put(struct map_groups *mg); 75 76 static inline struct kmap *map__kmap(struct map *map) 77 { 78 return (struct kmap *)(map + 1); 79 } 80 81 static inline u64 map__map_ip(struct map *map, u64 ip) 82 { 83 return ip - map->start + map->pgoff; 84 } 85 86 static inline u64 map__unmap_ip(struct map *map, u64 ip) 87 { 88 return ip + map->start - map->pgoff; 89 } 90 91 static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip) 92 { 93 return ip; 94 } 95 96 97 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */ 98 u64 map__rip_2objdump(struct map *map, u64 rip); 99 100 /* objdump address -> memory address */ 101 u64 map__objdump_2mem(struct map *map, u64 ip); 102 103 struct symbol; 104 105 /* map__for_each_symbol - iterate over the symbols in the given map 106 * 107 * @map: the 'struct map *' in which symbols itereated 108 * @pos: the 'struct symbol *' to use as a loop cursor 109 * @n: the 'struct rb_node *' to use as a temporary storage 110 * Note: caller must ensure map->dso is not NULL (map is loaded). 111 */ 112 #define map__for_each_symbol(map, pos, n) \ 113 dso__for_each_symbol(map->dso, pos, n, map->type) 114 115 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); 116 117 void map__init(struct map *map, enum map_type type, 118 u64 start, u64 end, u64 pgoff, struct dso *dso); 119 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, 120 u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino, 121 u64 ino_gen, 122 char *filename, enum map_type type); 123 struct map *map__new2(u64 start, struct dso *dso, enum map_type type); 124 void map__delete(struct map *map); 125 struct map *map__clone(struct map *map); 126 int map__overlap(struct map *l, struct map *r); 127 size_t map__fprintf(struct map *map, FILE *fp); 128 size_t map__fprintf_dsoname(struct map *map, FILE *fp); 129 int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix, 130 FILE *fp); 131 132 int map__load(struct map *map, symbol_filter_t filter); 133 struct symbol *map__find_symbol(struct map *map, 134 u64 addr, symbol_filter_t filter); 135 struct symbol *map__find_symbol_by_name(struct map *map, const char *name, 136 symbol_filter_t filter); 137 void map__fixup_start(struct map *map); 138 void map__fixup_end(struct map *map); 139 140 void map__reloc_vmlinux(struct map *map); 141 142 size_t __map_groups__fprintf_maps(struct map_groups *mg, 143 enum map_type type, int verbose, FILE *fp); 144 void maps__insert(struct rb_root *maps, struct map *map); 145 void maps__remove(struct rb_root *maps, struct map *map); 146 struct map *maps__find(struct rb_root *maps, u64 addr); 147 struct map *maps__first(struct rb_root *maps); 148 struct map *maps__next(struct map *map); 149 void map_groups__init(struct map_groups *mg); 150 void map_groups__exit(struct map_groups *mg); 151 int map_groups__clone(struct map_groups *mg, 152 struct map_groups *parent, enum map_type type); 153 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp); 154 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp); 155 156 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, 157 u64 addr); 158 159 static inline void map_groups__insert(struct map_groups *mg, struct map *map) 160 { 161 maps__insert(&mg->maps[map->type], map); 162 map->groups = mg; 163 } 164 165 static inline void map_groups__remove(struct map_groups *mg, struct map *map) 166 { 167 maps__remove(&mg->maps[map->type], map); 168 } 169 170 static inline struct map *map_groups__find(struct map_groups *mg, 171 enum map_type type, u64 addr) 172 { 173 return maps__find(&mg->maps[type], addr); 174 } 175 176 static inline struct map *map_groups__first(struct map_groups *mg, 177 enum map_type type) 178 { 179 return maps__first(&mg->maps[type]); 180 } 181 182 static inline struct map *map_groups__next(struct map *map) 183 { 184 return maps__next(map); 185 } 186 187 struct symbol *map_groups__find_symbol(struct map_groups *mg, 188 enum map_type type, u64 addr, 189 struct map **mapp, 190 symbol_filter_t filter); 191 192 struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, 193 enum map_type type, 194 const char *name, 195 struct map **mapp, 196 symbol_filter_t filter); 197 198 struct addr_map_symbol; 199 200 int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter); 201 202 static inline 203 struct symbol *map_groups__find_function_by_name(struct map_groups *mg, 204 const char *name, struct map **mapp, 205 symbol_filter_t filter) 206 { 207 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter); 208 } 209 210 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, 211 int verbose, FILE *fp); 212 213 struct map *map_groups__find_by_name(struct map_groups *mg, 214 enum map_type type, const char *name); 215 216 void map_groups__flush(struct map_groups *mg); 217 218 #endif /* __PERF_MAP_H */ 219