1 #ifndef __PERF_MAP_H 2 #define __PERF_MAP_H 3 4 /* ANDROID_CHANGE_BEGIN */ 5 #if 0 6 #include <linux/compiler.h> 7 #include <linux/list.h> 8 #include <linux/rbtree.h> 9 #else 10 #include "include/linux/compiler.h" 11 #include "include/linux/list.h" 12 #include "include/linux/rbtree.h" 13 #endif 14 /* ANDROID_CHANGE_END */ 15 #include <stdio.h> 16 #include <stdbool.h> 17 #include "types.h" 18 19 enum map_type { 20 MAP__FUNCTION = 0, 21 MAP__VARIABLE, 22 }; 23 24 #define MAP__NR_TYPES (MAP__VARIABLE + 1) 25 26 extern const char *map_type__name[MAP__NR_TYPES]; 27 28 struct dso; 29 struct ref_reloc_sym; 30 struct map_groups; 31 struct machine; 32 33 struct map { 34 union { 35 struct rb_node rb_node; 36 struct list_head node; 37 }; 38 u64 start; 39 u64 end; 40 u8 /* enum map_type */ type; 41 bool referenced; 42 u32 priv; 43 u64 pgoff; 44 45 /* ip -> dso rip */ 46 u64 (*map_ip)(struct map *, u64); 47 /* dso rip -> ip */ 48 u64 (*unmap_ip)(struct map *, u64); 49 50 struct dso *dso; 51 struct map_groups *groups; 52 }; 53 54 struct kmap { 55 struct ref_reloc_sym *ref_reloc_sym; 56 struct map_groups *kmaps; 57 }; 58 59 struct map_groups { 60 struct rb_root maps[MAP__NR_TYPES]; 61 struct list_head removed_maps[MAP__NR_TYPES]; 62 struct machine *machine; 63 }; 64 65 /* Native host kernel uses -1 as pid index in machine */ 66 #define HOST_KERNEL_ID (-1) 67 #define DEFAULT_GUEST_KERNEL_ID (0) 68 69 struct machine { 70 struct rb_node rb_node; 71 pid_t pid; 72 char *root_dir; 73 struct list_head user_dsos; 74 struct list_head kernel_dsos; 75 struct map_groups kmaps; 76 struct map *vmlinux_maps[MAP__NR_TYPES]; 77 }; 78 79 static inline 80 struct map *machine__kernel_map(struct machine *self, enum map_type type) 81 { 82 return self->vmlinux_maps[type]; 83 } 84 85 static inline struct kmap *map__kmap(struct map *self) 86 { 87 return (struct kmap *)(self + 1); 88 } 89 90 static inline u64 map__map_ip(struct map *map, u64 ip) 91 { 92 return ip - map->start + map->pgoff; 93 } 94 95 static inline u64 map__unmap_ip(struct map *map, u64 ip) 96 { 97 return ip + map->start - map->pgoff; 98 } 99 100 static inline u64 identity__map_ip(struct map *map __used, u64 ip) 101 { 102 return ip; 103 } 104 105 106 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */ 107 u64 map__rip_2objdump(struct map *map, u64 rip); 108 u64 map__objdump_2ip(struct map *map, u64 addr); 109 110 struct symbol; 111 112 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); 113 114 void map__init(struct map *self, enum map_type type, 115 u64 start, u64 end, u64 pgoff, struct dso *dso); 116 struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, 117 u64 pgoff, u32 pid, char *filename, 118 enum map_type type); 119 void map__delete(struct map *self); 120 struct map *map__clone(struct map *self); 121 int map__overlap(struct map *l, struct map *r); 122 size_t map__fprintf(struct map *self, FILE *fp); 123 124 int map__load(struct map *self, symbol_filter_t filter); 125 struct symbol *map__find_symbol(struct map *self, 126 u64 addr, symbol_filter_t filter); 127 struct symbol *map__find_symbol_by_name(struct map *self, const char *name, 128 symbol_filter_t filter); 129 void map__fixup_start(struct map *self); 130 void map__fixup_end(struct map *self); 131 132 void map__reloc_vmlinux(struct map *self); 133 134 size_t __map_groups__fprintf_maps(struct map_groups *self, 135 enum map_type type, int verbose, FILE *fp); 136 void maps__insert(struct rb_root *maps, struct map *map); 137 void maps__remove(struct rb_root *self, struct map *map); 138 struct map *maps__find(struct rb_root *maps, u64 addr); 139 void map_groups__init(struct map_groups *self); 140 void map_groups__exit(struct map_groups *self); 141 int map_groups__clone(struct map_groups *self, 142 struct map_groups *parent, enum map_type type); 143 size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp); 144 size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp); 145 146 typedef void (*machine__process_t)(struct machine *self, void *data); 147 148 void machines__process(struct rb_root *self, machine__process_t process, void *data); 149 struct machine *machines__add(struct rb_root *self, pid_t pid, 150 const char *root_dir); 151 struct machine *machines__find_host(struct rb_root *self); 152 struct machine *machines__find(struct rb_root *self, pid_t pid); 153 struct machine *machines__findnew(struct rb_root *self, pid_t pid); 154 char *machine__mmap_name(struct machine *self, char *bf, size_t size); 155 int machine__init(struct machine *self, const char *root_dir, pid_t pid); 156 void machine__exit(struct machine *self); 157 void machine__delete(struct machine *self); 158 159 /* 160 * Default guest kernel is defined by parameter --guestkallsyms 161 * and --guestmodules 162 */ 163 static inline bool machine__is_default_guest(struct machine *self) 164 { 165 return self ? self->pid == DEFAULT_GUEST_KERNEL_ID : false; 166 } 167 168 static inline bool machine__is_host(struct machine *self) 169 { 170 return self ? self->pid == HOST_KERNEL_ID : false; 171 } 172 173 static inline void map_groups__insert(struct map_groups *self, struct map *map) 174 { 175 maps__insert(&self->maps[map->type], map); 176 map->groups = self; 177 } 178 179 static inline void map_groups__remove(struct map_groups *self, struct map *map) 180 { 181 maps__remove(&self->maps[map->type], map); 182 } 183 184 static inline struct map *map_groups__find(struct map_groups *self, 185 enum map_type type, u64 addr) 186 { 187 return maps__find(&self->maps[type], addr); 188 } 189 190 struct symbol *map_groups__find_symbol(struct map_groups *self, 191 enum map_type type, u64 addr, 192 struct map **mapp, 193 symbol_filter_t filter); 194 195 struct symbol *map_groups__find_symbol_by_name(struct map_groups *self, 196 enum map_type type, 197 const char *name, 198 struct map **mapp, 199 symbol_filter_t filter); 200 201 static inline 202 struct symbol *machine__find_kernel_symbol(struct machine *self, 203 enum map_type type, u64 addr, 204 struct map **mapp, 205 symbol_filter_t filter) 206 { 207 return map_groups__find_symbol(&self->kmaps, type, addr, mapp, filter); 208 } 209 210 static inline 211 struct symbol *machine__find_kernel_function(struct machine *self, u64 addr, 212 struct map **mapp, 213 symbol_filter_t filter) 214 { 215 return machine__find_kernel_symbol(self, MAP__FUNCTION, addr, mapp, filter); 216 } 217 218 static inline 219 struct symbol *map_groups__find_function_by_name(struct map_groups *self, 220 const char *name, struct map **mapp, 221 symbol_filter_t filter) 222 { 223 return map_groups__find_symbol_by_name(self, MAP__FUNCTION, name, mapp, filter); 224 } 225 226 static inline 227 struct symbol *machine__find_kernel_function_by_name(struct machine *self, 228 const char *name, 229 struct map **mapp, 230 symbol_filter_t filter) 231 { 232 return map_groups__find_function_by_name(&self->kmaps, name, mapp, 233 filter); 234 } 235 236 int map_groups__fixup_overlappings(struct map_groups *self, struct map *map, 237 int verbose, FILE *fp); 238 239 struct map *map_groups__find_by_name(struct map_groups *self, 240 enum map_type type, const char *name); 241 struct map *machine__new_module(struct machine *self, u64 start, const char *filename); 242 243 void map_groups__flush(struct map_groups *self); 244 245 #endif /* __PERF_MAP_H */ 246
