tools/perf/util/map.h

   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 struct symbol;
  88
  89 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
  90
  91 void map__init(struct map *map, enum map_type type,
  92                u64 start, u64 end, u64 pgoff, struct dso *dso);
  93 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
  94                      u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
  95                      u64 ino_gen,
  96                      char *filename, enum map_type type);
  97 struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
  98 void map__delete(struct map *map);
  99 struct map *map__clone(struct map *map);
 100 int map__overlap(struct map *l, struct map *r);
 101 size_t map__fprintf(struct map *map, FILE *fp);
 102 size_t map__fprintf_dsoname(struct map *map, FILE *fp);
 103
 104 int map__load(struct map *map, symbol_filter_t filter);
 105 struct symbol *map__find_symbol(struct map *map,
 106                                 u64 addr, symbol_filter_t filter);
 107 struct symbol *map__find_symbol_by_name(struct map *map, const char *name,
 108                                         symbol_filter_t filter);
 109 void map__fixup_start(struct map *map);
 110 void map__fixup_end(struct map *map);
 111
 112 void map__reloc_vmlinux(struct map *map);
 113
 114 size_t __map_groups__fprintf_maps(struct map_groups *mg,
 115                                   enum map_type type, int verbose, FILE *fp);
 116 void maps__insert(struct rb_root *maps, struct map *map);
 117 void maps__remove(struct rb_root *maps, struct map *map);
 118 struct map *maps__find(struct rb_root *maps, u64 addr);
 119 struct map *maps__first(struct rb_root *maps);
 120 struct map *maps__next(struct map *map);
 121 void map_groups__init(struct map_groups *mg);
 122 void map_groups__exit(struct map_groups *mg);
 123 int map_groups__clone(struct map_groups *mg,
 124                       struct map_groups *parent, enum map_type type);
 125 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
 126 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);
 127
 128 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
 129                                      u64 addr);
 130
 131 static inline void map_groups__insert(struct map_groups *mg, struct map *map)
 132 {
 133         maps__insert(&mg->maps[map->type], map);
 134         map->groups = mg;
 135 }
 136
 137 static inline void map_groups__remove(struct map_groups *mg, struct map *map)
 138 {
 139         maps__remove(&mg->maps[map->type], map);
 140 }
 141
 142 static inline struct map *map_groups__find(struct map_groups *mg,
 143                                            enum map_type type, u64 addr)
 144 {
 145         return maps__find(&mg->maps[type], addr);
 146 }
 147
 148 static inline struct map *map_groups__first(struct map_groups *mg,
 149                                             enum map_type type)
 150 {
 151         return maps__first(&mg->maps[type]);
 152 }
 153
 154 static inline struct map *map_groups__next(struct map *map)
 155 {
 156         return maps__next(map);
 157 }
 158
 159 struct symbol *map_groups__find_symbol(struct map_groups *mg,
 160                                        enum map_type type, u64 addr,
 161                                        struct map **mapp,
 162                                        symbol_filter_t filter);
 163
 164 struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
 165                                                enum map_type type,
 166                                                const char *name,
 167                                                struct map **mapp,
 168                                                symbol_filter_t filter);
 169
 170 static inline
 171 struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
 172                                                  const char *name, struct map **mapp,
 173                                                  symbol_filter_t filter)
 174 {
 175         return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
 176 }
 177
 178 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
 179                                    int verbose, FILE *fp);
 180
 181 struct map *map_groups__find_by_name(struct map_groups *mg,
 182                                      enum map_type type, const char *name);
 183
 184 void map_groups__flush(struct map_groups *mg);
 185
 186 #endif /* __PERF_MAP_H */