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