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 19enum map_type { 20 MAP__FUNCTION = 0, 21 MAP__VARIABLE, 22}; 23 24#define MAP__NR_TYPES (MAP__VARIABLE + 1) 25 26extern const char *map_type__name[MAP__NR_TYPES]; 27 28struct dso; 29struct ref_reloc_sym; 30struct map_groups; 31struct machine; 32 33struct 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 54struct kmap { 55 struct ref_reloc_sym *ref_reloc_sym; 56 struct map_groups *kmaps; 57}; 58 59struct 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 69struct 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 79static inline 80struct map *machine__kernel_map(struct machine *self, enum map_type type) 81{ 82 return self->vmlinux_maps[type]; 83} 84 85static inline struct kmap *map__kmap(struct map *self) 86{ 87 return (struct kmap *)(self + 1); 88} 89 90static inline u64 map__map_ip(struct map *map, u64 ip) 91{ 92 return ip - map->start + map->pgoff; 93} 94 95static inline u64 map__unmap_ip(struct map *map, u64 ip) 96{ 97 return ip + map->start - map->pgoff; 98} 99 100static 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=` */ 107u64 map__rip_2objdump(struct map *map, u64 rip); 108u64 map__objdump_2ip(struct map *map, u64 addr); 109 110struct symbol; 111 112typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym); 113 114void map__init(struct map *self, enum map_type type, 115 u64 start, u64 end, u64 pgoff, struct dso *dso); 116struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, 117 u64 pgoff, u32 pid, char *filename, 118 enum map_type type); 119void map__delete(struct map *self); 120struct map *map__clone(struct map *self); 121int map__overlap(struct map *l, struct map *r); 122size_t map__fprintf(struct map *self, FILE *fp); 123 124int map__load(struct map *self, symbol_filter_t filter); 125struct symbol *map__find_symbol(struct map *self, 126 u64 addr, symbol_filter_t filter); 127struct symbol *map__find_symbol_by_name(struct map *self, const char *name, 128 symbol_filter_t filter); 129void map__fixup_start(struct map *self); 130void map__fixup_end(struct map *self); 131 132void map__reloc_vmlinux(struct map *self); 133 134size_t __map_groups__fprintf_maps(struct map_groups *self, 135 enum map_type type, int verbose, FILE *fp); 136void maps__insert(struct rb_root *maps, struct map *map); 137void maps__remove(struct rb_root *self, struct map *map); 138struct map *maps__find(struct rb_root *maps, u64 addr); 139void map_groups__init(struct map_groups *self); 140void map_groups__exit(struct map_groups *self); 141int map_groups__clone(struct map_groups *self, 142 struct map_groups *parent, enum map_type type); 143size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp); 144size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp); 145 146typedef void (*machine__process_t)(struct machine *self, void *data); 147 148void machines__process(struct rb_root *self, machine__process_t process, void *data); 149struct machine *machines__add(struct rb_root *self, pid_t pid, 150 const char *root_dir); 151struct machine *machines__find_host(struct rb_root *self); 152struct machine *machines__find(struct rb_root *self, pid_t pid); 153struct machine *machines__findnew(struct rb_root *self, pid_t pid); 154char *machine__mmap_name(struct machine *self, char *bf, size_t size); 155int machine__init(struct machine *self, const char *root_dir, pid_t pid); 156void machine__exit(struct machine *self); 157void machine__delete(struct machine *self); 158 159/* 160 * Default guest kernel is defined by parameter --guestkallsyms 161 * and --guestmodules 162 */ 163static inline bool machine__is_default_guest(struct machine *self) 164{ 165 return self ? self->pid == DEFAULT_GUEST_KERNEL_ID : false; 166} 167 168static inline bool machine__is_host(struct machine *self) 169{ 170 return self ? self->pid == HOST_KERNEL_ID : false; 171} 172 173static 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 179static inline void map_groups__remove(struct map_groups *self, struct map *map) 180{ 181 maps__remove(&self->maps[map->type], map); 182} 183 184static 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 190struct 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 195struct 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 201static inline 202struct 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 210static inline 211struct 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 218static inline 219struct 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 226static inline 227struct 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 236int map_groups__fixup_overlappings(struct map_groups *self, struct map *map, 237 int verbose, FILE *fp); 238 239struct map *map_groups__find_by_name(struct map_groups *self, 240 enum map_type type, const char *name); 241struct map *machine__new_module(struct machine *self, u64 start, const char *filename); 242 243void map_groups__flush(struct map_groups *self); 244 245#endif /* __PERF_MAP_H */ 246