1 #ifndef __PERF_SYMBOL 2 #define __PERF_SYMBOL 1 3 4 #include <linux/types.h> 5 #include <stdbool.h> 6 #include <stdint.h> 7 #include "map.h" 8 #include "../perf.h" 9 #include <linux/list.h> 10 #include <linux/rbtree.h> 11 #include <stdio.h> 12 13 #ifdef HAVE_CPLUS_DEMANGLE 14 extern char *cplus_demangle(const char *, int); 15 16 static inline char *bfd_demangle(void __used *v, const char *c, int i) 17 { 18 return cplus_demangle(c, i); 19 } 20 #else 21 #ifdef NO_DEMANGLE 22 static inline char *bfd_demangle(void __used *v, const char __used *c, 23 int __used i) 24 { 25 return NULL; 26 } 27 #else 28 #include <bfd.h> 29 #endif 30 #endif 31 32 int hex2u64(const char *ptr, u64 *val); 33 char *strxfrchar(char *s, char from, char to); 34 35 /* 36 * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP; 37 * for newer versions we can use mmap to reduce memory usage: 38 */ 39 #ifdef LIBELF_NO_MMAP 40 # define PERF_ELF_C_READ_MMAP ELF_C_READ 41 #else 42 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP 43 #endif 44 45 #ifndef DMGL_PARAMS 46 #define DMGL_PARAMS (1 << 0) /* Include function args */ 47 #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ 48 #endif 49 50 #define BUILD_ID_SIZE 20 51 52 /** struct symbol - symtab entry 53 * 54 * @ignore - resolvable but tools ignore it (e.g. idle routines) 55 */ 56 struct symbol { 57 struct rb_node rb_node; 58 u64 start; 59 u64 end; 60 u16 namelen; 61 u8 binding; 62 bool ignore; 63 char name[0]; 64 }; 65 66 void symbol__delete(struct symbol *sym); 67 68 static inline size_t symbol__size(const struct symbol *sym) 69 { 70 return sym->end - sym->start + 1; 71 } 72 73 struct strlist; 74 75 struct symbol_conf { 76 unsigned short priv_size; 77 unsigned short nr_events; 78 bool try_vmlinux_path, 79 show_kernel_path, 80 use_modules, 81 sort_by_name, 82 show_nr_samples, 83 show_total_period, 84 use_callchain, 85 exclude_other, 86 show_cpu_utilization, 87 initialized, 88 kptr_restrict, 89 annotate_asm_raw, 90 annotate_src; 91 const char *vmlinux_name, 92 *kallsyms_name, 93 *source_prefix, 94 *field_sep; 95 const char *default_guest_vmlinux_name, 96 *default_guest_kallsyms, 97 *default_guest_modules; 98 const char *guestmount; 99 const char *dso_list_str, 100 *comm_list_str, 101 *sym_list_str, 102 *col_width_list_str; 103 struct strlist *dso_list, 104 *comm_list, 105 *sym_list, 106 *dso_from_list, 107 *dso_to_list, 108 *sym_from_list, 109 *sym_to_list; 110 const char *symfs; 111 }; 112 113 extern struct symbol_conf symbol_conf; 114 115 static inline void *symbol__priv(struct symbol *sym) 116 { 117 return ((void *)sym) - symbol_conf.priv_size; 118 } 119 120 struct ref_reloc_sym { 121 const char *name; 122 u64 addr; 123 u64 unrelocated_addr; 124 }; 125 126 struct map_symbol { 127 struct map *map; 128 struct symbol *sym; 129 bool unfolded; 130 bool has_children; 131 }; 132 133 struct addr_map_symbol { 134 struct map *map; 135 struct symbol *sym; 136 u64 addr; 137 u64 al_addr; 138 }; 139 140 struct branch_info { 141 struct addr_map_symbol from; 142 struct addr_map_symbol to; 143 struct branch_flags flags; 144 }; 145 146 struct addr_location { 147 struct thread *thread; 148 struct map *map; 149 struct symbol *sym; 150 u64 addr; 151 char level; 152 bool filtered; 153 u8 cpumode; 154 s32 cpu; 155 }; 156 157 enum dso_kernel_type { 158 DSO_TYPE_USER = 0, 159 DSO_TYPE_KERNEL, 160 DSO_TYPE_GUEST_KERNEL 161 }; 162 163 struct dso { 164 struct list_head node; 165 struct rb_root symbols[MAP__NR_TYPES]; 166 struct rb_root symbol_names[MAP__NR_TYPES]; 167 enum dso_kernel_type kernel; 168 u8 adjust_symbols:1; 169 u8 has_build_id:1; 170 u8 hit:1; 171 u8 annotate_warned:1; 172 u8 sname_alloc:1; 173 u8 lname_alloc:1; 174 unsigned char symtab_type; 175 u8 sorted_by_name; 176 u8 loaded; 177 u8 build_id[BUILD_ID_SIZE]; 178 const char *short_name; 179 char *long_name; 180 u16 long_name_len; 181 u16 short_name_len; 182 char name[0]; 183 }; 184 185 struct dso *dso__new(const char *name); 186 void dso__delete(struct dso *dso); 187 188 int dso__name_len(const struct dso *dso); 189 190 bool dso__loaded(const struct dso *dso, enum map_type type); 191 bool dso__sorted_by_name(const struct dso *dso, enum map_type type); 192 193 static inline void dso__set_loaded(struct dso *dso, enum map_type type) 194 { 195 dso->loaded |= (1 << type); 196 } 197 198 void dso__sort_by_name(struct dso *dso, enum map_type type); 199 200 struct dso *__dsos__findnew(struct list_head *head, const char *name); 201 202 int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter); 203 int dso__load_vmlinux(struct dso *dso, struct map *map, 204 const char *vmlinux, symbol_filter_t filter); 205 int dso__load_vmlinux_path(struct dso *dso, struct map *map, 206 symbol_filter_t filter); 207 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, 208 symbol_filter_t filter); 209 int machine__load_kallsyms(struct machine *machine, const char *filename, 210 enum map_type type, symbol_filter_t filter); 211 int machine__load_vmlinux_path(struct machine *machine, enum map_type type, 212 symbol_filter_t filter); 213 214 size_t __dsos__fprintf(struct list_head *head, FILE *fp); 215 216 size_t machine__fprintf_dsos_buildid(struct machine *machine, 217 FILE *fp, bool with_hits); 218 size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp); 219 size_t machines__fprintf_dsos_buildid(struct rb_root *machines, 220 FILE *fp, bool with_hits); 221 size_t dso__fprintf_buildid(struct dso *dso, FILE *fp); 222 size_t dso__fprintf_symbols_by_name(struct dso *dso, 223 enum map_type type, FILE *fp); 224 size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); 225 226 enum symtab_type { 227 SYMTAB__KALLSYMS = 0, 228 SYMTAB__GUEST_KALLSYMS, 229 SYMTAB__JAVA_JIT, 230 SYMTAB__BUILD_ID_CACHE, 231 SYMTAB__FEDORA_DEBUGINFO, 232 SYMTAB__UBUNTU_DEBUGINFO, 233 SYMTAB__BUILDID_DEBUGINFO, 234 SYMTAB__SYSTEM_PATH_DSO, 235 SYMTAB__GUEST_KMODULE, 236 SYMTAB__SYSTEM_PATH_KMODULE, 237 SYMTAB__NOT_FOUND, 238 }; 239 240 char dso__symtab_origin(const struct dso *dso); 241 void dso__set_long_name(struct dso *dso, char *name); 242 void dso__set_build_id(struct dso *dso, void *build_id); 243 void dso__read_running_kernel_build_id(struct dso *dso, 244 struct machine *machine); 245 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, 246 u64 addr); 247 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, 248 const char *name); 249 250 int filename__read_build_id(const char *filename, void *bf, size_t size); 251 int sysfs__read_build_id(const char *filename, void *bf, size_t size); 252 bool __dsos__read_build_ids(struct list_head *head, bool with_hits); 253 int build_id__sprintf(const u8 *build_id, int len, char *bf); 254 int kallsyms__parse(const char *filename, void *arg, 255 int (*process_symbol)(void *arg, const char *name, 256 char type, u64 start, u64 end)); 257 258 void machine__destroy_kernel_maps(struct machine *machine); 259 int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel); 260 int machine__create_kernel_maps(struct machine *machine); 261 262 int machines__create_kernel_maps(struct rb_root *machines, pid_t pid); 263 int machines__create_guest_kernel_maps(struct rb_root *machines); 264 void machines__destroy_guest_kernel_maps(struct rb_root *machines); 265 266 int symbol__init(void); 267 void symbol__exit(void); 268 size_t symbol__fprintf_symname_offs(const struct symbol *sym, 269 const struct addr_location *al, FILE *fp); 270 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp); 271 bool symbol_type__is_a(char symbol_type, enum map_type map_type); 272 273 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); 274 275 #endif /* __PERF_SYMBOL */ 276