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 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); 94 95 void map__init(struct map *map, enum map_type type, 96 u64 start, u64 end, u64 pgoff, struct dso *dso); 97 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, 98 u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino, 99 u64 ino_gen, 100 char *filename, enum map_type type); 101 struct map *map__new2(u64 start, struct dso *dso, enum map_type type); 102 void map__delete(struct map *map); 103 struct map *map__clone(struct map *map); 104 int map__overlap(struct map *l, struct map *r); 105 size_t map__fprintf(struct map *map, FILE *fp); 106 size_t map__fprintf_dsoname(struct map *map, FILE *fp); 107 int map__fprintf_srcline(struct map *map, u64 addr, const char *prefix, 108 FILE *fp); 109 110 int map__load(struct map *map, symbol_filter_t filter); 111 struct symbol *map__find_symbol(struct map *map, 112 u64 addr, symbol_filter_t filter); 113 struct symbol *map__find_symbol_by_name(struct map *map, const char *name, 114 symbol_filter_t filter); 115 void map__fixup_start(struct map *map); 116 void map__fixup_end(struct map *map); 117 118 void map__reloc_vmlinux(struct map *map); 119 120 size_t __map_groups__fprintf_maps(struct map_groups *mg, 121 enum map_type type, int verbose, FILE *fp); 122 void maps__insert(struct rb_root *maps, struct map *map); 123 void maps__remove(struct rb_root *maps, struct map *map); 124 struct map *maps__find(struct rb_root *maps, u64 addr); 125 struct map *maps__first(struct rb_root *maps); 126 struct map *maps__next(struct map *map); 127 void map_groups__init(struct map_groups *mg); 128 void map_groups__exit(struct map_groups *mg); 129 int map_groups__clone(struct map_groups *mg, 130 struct map_groups *parent, enum map_type type); 131 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp); 132 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp); 133 134 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, 135 u64 addr); 136 137 static inline void map_groups__insert(struct map_groups *mg, struct map *map) 138 { 139 maps__insert(&mg->maps[map->type], map); 140 map->groups = mg; 141 } 142 143 static inline void map_groups__remove(struct map_groups *mg, struct map *map) 144 { 145 maps__remove(&mg->maps[map->type], map); 146 } 147 148 static inline struct map *map_groups__find(struct map_groups *mg, 149 enum map_type type, u64 addr) 150 { 151 return maps__find(&mg->maps[type], addr); 152 } 153 154 static inline struct map *map_groups__first(struct map_groups *mg, 155 enum map_type type) 156 { 157 return maps__first(&mg->maps[type]); 158 } 159 160 static inline struct map *map_groups__next(struct map *map) 161 { 162 return maps__next(map); 163 } 164 165 struct symbol *map_groups__find_symbol(struct map_groups *mg, 166 enum map_type type, u64 addr, 167 struct map **mapp, 168 symbol_filter_t filter); 169 170 struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, 171 enum map_type type, 172 const char *name, 173 struct map **mapp, 174 symbol_filter_t filter); 175 176 struct addr_map_symbol; 177 178 int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter); 179 180 static inline 181 struct symbol *map_groups__find_function_by_name(struct map_groups *mg, 182 const char *name, struct map **mapp, 183 symbol_filter_t filter) 184 { 185 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter); 186 } 187 188 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, 189 int verbose, FILE *fp); 190 191 struct map *map_groups__find_by_name(struct map_groups *mg, 192 enum map_type type, const char *name); 193 194 void map_groups__flush(struct map_groups *mg); 195 196 #endif /* __PERF_MAP_H */ 197