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 u32 prot; 39 u32 flags; 40 u64 pgoff; 41 u64 reloc; 42 u32 maj, min; /* only valid for MMAP2 record */ 43 u64 ino; /* only valid for MMAP2 record */ 44 u64 ino_generation;/* only valid for MMAP2 record */ 45 46 /* ip -> dso rip */ 47 u64 (*map_ip)(struct map *, u64); 48 /* dso rip -> ip */ 49 u64 (*unmap_ip)(struct map *, u64); 50 51 struct dso *dso; 52 struct map_groups *groups; 53 }; 54 55 struct kmap { 56 struct ref_reloc_sym *ref_reloc_sym; 57 struct map_groups *kmaps; 58 }; 59 60 struct map_groups { 61 struct rb_root maps[MAP__NR_TYPES]; 62 struct list_head removed_maps[MAP__NR_TYPES]; 63 struct machine *machine; 64 int refcnt; 65 }; 66 67 struct map_groups *map_groups__new(void); 68 void map_groups__delete(struct map_groups *mg); 69 70 static inline struct map_groups *map_groups__get(struct map_groups *mg) 71 { 72 ++mg->refcnt; 73 return mg; 74 } 75 76 void map_groups__put(struct map_groups *mg); 77 78 static inline struct kmap *map__kmap(struct map *map) 79 { 80 return (struct kmap *)(map + 1); 81 } 82 83 static inline u64 map__map_ip(struct map *map, u64 ip) 84 { 85 return ip - map->start + map->pgoff; 86 } 87 88 static inline u64 map__unmap_ip(struct map *map, u64 ip) 89 { 90 return ip + map->start - map->pgoff; 91 } 92 93 static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip) 94 { 95 return ip; 96 } 97 98 99 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */ 100 u64 map__rip_2objdump(struct map *map, u64 rip); 101 102 /* objdump address -> memory address */ 103 u64 map__objdump_2mem(struct map *map, u64 ip); 104 105 struct symbol; 106 107 /* map__for_each_symbol - iterate over the symbols in the given map 108 * 109 * @map: the 'struct map *' in which symbols itereated 110 * @pos: the 'struct symbol *' to use as a loop cursor 111 * @n: the 'struct rb_node *' to use as a temporary storage 112 * Note: caller must ensure map->dso is not NULL (map is loaded). 113 */ 114 #define map__for_each_symbol(map, pos, n) \ 115 dso__for_each_symbol(map->dso, pos, n, map->type) 116 117 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); 118 119 void map__init(struct map *map, enum map_type type, 120 u64 start, u64 end, u64 pgoff, struct dso *dso); 121 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, 122 u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino, 123 u64 ino_gen, u32 prot, u32 flags, 124 char *filename, enum map_type type); 125 struct map *map__new2(u64 start, struct dso *dso, enum map_type type); 126 void map__delete(struct map *map); 127 struct map *map__clone(struct map *map); 128 int map__overlap(struct map *l, struct map *r); 129 size_t map__fprintf(struct map *map, FILE *fp); 130 size_t map__fprintf_dsoname(struct map *map, FILE *fp); 131 int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix, 132 FILE *fp); 133 134 int map__load(struct map *map, symbol_filter_t filter); 135 struct symbol *map__find_symbol(struct map *map, 136 u64 addr, symbol_filter_t filter); 137 struct symbol *map__find_symbol_by_name(struct map *map, const char *name, 138 symbol_filter_t filter); 139 void map__fixup_start(struct map *map); 140 void map__fixup_end(struct map *map); 141 142 void map__reloc_vmlinux(struct map *map); 143 144 size_t __map_groups__fprintf_maps(struct map_groups *mg, 145 enum map_type type, int verbose, FILE *fp); 146 void maps__insert(struct rb_root *maps, struct map *map); 147 void maps__remove(struct rb_root *maps, struct map *map); 148 struct map *maps__find(struct rb_root *maps, u64 addr); 149 struct map *maps__first(struct rb_root *maps); 150 struct map *maps__next(struct map *map); 151 void map_groups__init(struct map_groups *mg); 152 void map_groups__exit(struct map_groups *mg); 153 int map_groups__clone(struct map_groups *mg, 154 struct map_groups *parent, enum map_type type); 155 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp); 156 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp); 157 158 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, 159 u64 addr); 160 161 static inline void map_groups__insert(struct map_groups *mg, struct map *map) 162 { 163 maps__insert(&mg->maps[map->type], map); 164 map->groups = mg; 165 } 166 167 static inline void map_groups__remove(struct map_groups *mg, struct map *map) 168 { 169 maps__remove(&mg->maps[map->type], map); 170 } 171 172 static inline struct map *map_groups__find(struct map_groups *mg, 173 enum map_type type, u64 addr) 174 { 175 return maps__find(&mg->maps[type], addr); 176 } 177 178 static inline struct map *map_groups__first(struct map_groups *mg, 179 enum map_type type) 180 { 181 return maps__first(&mg->maps[type]); 182 } 183 184 static inline struct map *map_groups__next(struct map *map) 185 { 186 return maps__next(map); 187 } 188 189 struct symbol *map_groups__find_symbol(struct map_groups *mg, 190 enum map_type type, u64 addr, 191 struct map **mapp, 192 symbol_filter_t filter); 193 194 struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, 195 enum map_type type, 196 const char *name, 197 struct map **mapp, 198 symbol_filter_t filter); 199 200 struct addr_map_symbol; 201 202 int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter); 203 204 static inline 205 struct symbol *map_groups__find_function_by_name(struct map_groups *mg, 206 const char *name, struct map **mapp, 207 symbol_filter_t filter) 208 { 209 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter); 210 } 211 212 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, 213 int verbose, FILE *fp); 214 215 struct map *map_groups__find_by_name(struct map_groups *mg, 216 enum map_type type, const char *name); 217 218 void map_groups__flush(struct map_groups *mg); 219 220 #endif /* __PERF_MAP_H */ 221