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 u32 maj, min; /* only valid for MMAP2 record */ 40 u64 ino; /* only valid for MMAP2 record */ 41 u64 ino_generation;/* only valid for MMAP2 record */ 42 43 /* ip -> dso rip */ 44 u64 (*map_ip)(struct map *, u64); 45 /* dso rip -> ip */ 46 u64 (*unmap_ip)(struct map *, u64); 47 48 struct dso *dso; 49 struct map_groups *groups; 50 }; 51 52 struct kmap { 53 struct ref_reloc_sym *ref_reloc_sym; 54 struct map_groups *kmaps; 55 }; 56 57 struct map_groups { 58 struct rb_root maps[MAP__NR_TYPES]; 59 struct list_head removed_maps[MAP__NR_TYPES]; 60 struct machine *machine; 61 }; 62 63 static inline struct kmap *map__kmap(struct map *map) 64 { 65 return (struct kmap *)(map + 1); 66 } 67 68 static inline u64 map__map_ip(struct map *map, u64 ip) 69 { 70 return ip - map->start + map->pgoff; 71 } 72 73 static inline u64 map__unmap_ip(struct map *map, u64 ip) 74 { 75 return ip + map->start - map->pgoff; 76 } 77 78 static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip) 79 { 80 return ip; 81 } 82 83 84 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */ 85 u64 map__rip_2objdump(struct map *map, u64 rip); 86 87 /* objdump address -> memory address */ 88 u64 map__objdump_2mem(struct map *map, u64 ip); 89 90 struct symbol; 91 92 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); 93 94 void map__init(struct map *map, enum map_type type, 95 u64 start, u64 end, u64 pgoff, struct dso *dso); 96 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, 97 u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino, 98 u64 ino_gen, 99 char *filename, enum map_type type); 100 struct map *map__new2(u64 start, struct dso *dso, enum map_type type); 101 void map__delete(struct map *map); 102 struct map *map__clone(struct map *map); 103 int map__overlap(struct map *l, struct map *r); 104 size_t map__fprintf(struct map *map, FILE *fp); 105 size_t map__fprintf_dsoname(struct map *map, FILE *fp); 106 107 int map__load(struct map *map, symbol_filter_t filter); 108 struct symbol *map__find_symbol(struct map *map, 109 u64 addr, symbol_filter_t filter); 110 struct symbol *map__find_symbol_by_name(struct map *map, const char *name, 111 symbol_filter_t filter); 112 void map__fixup_start(struct map *map); 113 void map__fixup_end(struct map *map); 114 115 void map__reloc_vmlinux(struct map *map); 116 117 size_t __map_groups__fprintf_maps(struct map_groups *mg, 118 enum map_type type, int verbose, FILE *fp); 119 void maps__insert(struct rb_root *maps, struct map *map); 120 void maps__remove(struct rb_root *maps, struct map *map); 121 struct map *maps__find(struct rb_root *maps, u64 addr); 122 struct map *maps__first(struct rb_root *maps); 123 struct map *maps__next(struct map *map); 124 void map_groups__init(struct map_groups *mg); 125 void map_groups__exit(struct map_groups *mg); 126 int map_groups__clone(struct map_groups *mg, 127 struct map_groups *parent, enum map_type type); 128 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp); 129 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp); 130 131 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name, 132 u64 addr); 133 134 static inline void map_groups__insert(struct map_groups *mg, struct map *map) 135 { 136 maps__insert(&mg->maps[map->type], map); 137 map->groups = mg; 138 } 139 140 static inline void map_groups__remove(struct map_groups *mg, struct map *map) 141 { 142 maps__remove(&mg->maps[map->type], map); 143 } 144 145 static inline struct map *map_groups__find(struct map_groups *mg, 146 enum map_type type, u64 addr) 147 { 148 return maps__find(&mg->maps[type], addr); 149 } 150 151 static inline struct map *map_groups__first(struct map_groups *mg, 152 enum map_type type) 153 { 154 return maps__first(&mg->maps[type]); 155 } 156 157 static inline struct map *map_groups__next(struct map *map) 158 { 159 return maps__next(map); 160 } 161 162 struct symbol *map_groups__find_symbol(struct map_groups *mg, 163 enum map_type type, u64 addr, 164 struct map **mapp, 165 symbol_filter_t filter); 166 167 struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, 168 enum map_type type, 169 const char *name, 170 struct map **mapp, 171 symbol_filter_t filter); 172 173 struct addr_map_symbol; 174 175 int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter); 176 177 static inline 178 struct symbol *map_groups__find_function_by_name(struct map_groups *mg, 179 const char *name, struct map **mapp, 180 symbol_filter_t filter) 181 { 182 return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter); 183 } 184 185 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, 186 int verbose, FILE *fp); 187 188 struct map *map_groups__find_by_name(struct map_groups *mg, 189 enum map_type type, const char *name); 190 191 void map_groups__flush(struct map_groups *mg); 192 193 #endif /* __PERF_MAP_H */ 194