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