2 #define __PERF_SYMBOL 1
4 #include <linux/types.h>
9 #include <linux/list.h>
10 #include <linux/rbtree.h>
18 #ifdef HAVE_LIBELF_SUPPORT
27 * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
28 * for newer versions we can use mmap to reduce memory usage:
30 #ifdef HAVE_LIBELF_MMAP_SUPPORT
31 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
33 # define PERF_ELF_C_READ_MMAP ELF_C_READ
36 #ifdef HAVE_LIBELF_SUPPORT
37 extern Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
38 GElf_Shdr *shp, const char *name, size_t *idx);
42 #define DMGL_NO_OPTS 0 /* For readability... */
43 #define DMGL_PARAMS (1 << 0) /* Include function args */
44 #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
47 /** struct symbol - symtab entry
49 * @ignore - resolvable but tools ignore it (e.g. idle routines)
52 struct rb_node rb_node;
61 void symbol__delete(struct symbol *sym);
62 void symbols__delete(struct rb_root *symbols);
64 /* symbols__for_each_entry - iterate over symbols (rb_root)
66 * @symbols: the rb_root of symbols
67 * @pos: the 'struct symbol *' to use as a loop cursor
68 * @nd: the 'struct rb_node *' to use as a temporary storage
70 #define symbols__for_each_entry(symbols, pos, nd) \
71 for (nd = rb_first(symbols); \
72 nd && (pos = rb_entry(nd, struct symbol, rb_node)); \
75 static inline size_t symbol__size(const struct symbol *sym)
77 return sym->end - sym->start;
84 unsigned short priv_size;
85 unsigned short nr_events;
86 bool try_vmlinux_path,
88 ignore_vmlinux_buildid,
110 const char *vmlinux_name,
114 const char *default_guest_vmlinux_name,
115 *default_guest_kallsyms,
116 *default_guest_modules;
117 const char *guestmount;
118 const char *dso_list_str,
124 struct strlist *dso_list,
131 struct intlist *pid_list,
136 extern struct symbol_conf symbol_conf;
138 static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
140 return path__join(bf, size, symbol_conf.symfs, path);
143 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
145 extern int vmlinux_path__nr_entries;
146 extern char **vmlinux_path;
148 static inline void *symbol__priv(struct symbol *sym)
150 return ((void *)sym) - symbol_conf.priv_size;
153 struct ref_reloc_sym {
156 u64 unrelocated_addr;
164 struct addr_map_symbol {
172 struct addr_map_symbol from;
173 struct addr_map_symbol to;
174 struct branch_flags flags;
178 struct addr_map_symbol iaddr;
179 struct addr_map_symbol daddr;
180 union perf_mem_data_src data_src;
183 struct addr_location {
184 struct machine *machine;
185 struct thread *thread;
198 enum dso_binary_type type;
200 #ifdef HAVE_LIBELF_SUPPORT
220 void symsrc__destroy(struct symsrc *ss);
221 int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
222 enum dso_binary_type type);
223 bool symsrc__has_symtab(struct symsrc *ss);
224 bool symsrc__possibly_runtime(struct symsrc *ss);
226 int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
227 int dso__load_vmlinux(struct dso *dso, struct map *map,
228 const char *vmlinux, bool vmlinux_allocated,
229 symbol_filter_t filter);
230 int dso__load_vmlinux_path(struct dso *dso, struct map *map,
231 symbol_filter_t filter);
232 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
233 symbol_filter_t filter);
235 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
237 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
239 struct symbol *symbol__next_by_name(struct symbol *sym);
241 struct symbol *dso__first_symbol(struct dso *dso, enum map_type type);
242 struct symbol *dso__next_symbol(struct symbol *sym);
244 enum dso_type dso__type_fd(int fd);
246 int filename__read_build_id(const char *filename, void *bf, size_t size);
247 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
248 int modules__parse(const char *filename, void *arg,
249 int (*process_module)(void *arg, const char *name,
251 int filename__read_debuglink(const char *filename, char *debuglink,
254 struct perf_session_env;
255 int symbol__init(struct perf_session_env *env);
256 void symbol__exit(void);
257 void symbol__elf_init(void);
258 struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
259 size_t symbol__fprintf_symname_offs(const struct symbol *sym,
260 const struct addr_location *al, FILE *fp);
261 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
262 size_t symbol__fprintf(struct symbol *sym, FILE *fp);
263 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
264 bool symbol__restricted_filename(const char *filename,
265 const char *restricted_filename);
266 bool symbol__is_idle(struct symbol *sym);
268 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
269 struct symsrc *runtime_ss, symbol_filter_t filter,
271 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
272 struct map *map, symbol_filter_t filter);
274 void symbols__insert(struct rb_root *symbols, struct symbol *sym);
275 void symbols__fixup_duplicate(struct rb_root *symbols);
276 void symbols__fixup_end(struct rb_root *symbols);
277 void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
279 typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
280 int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
283 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
285 struct kcore_extract {
286 char *kcore_filename;
290 char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
294 int kcore_extract__create(struct kcore_extract *kce);
295 void kcore_extract__delete(struct kcore_extract *kce);
297 int kcore_copy(const char *from_dir, const char *to_dir);
298 int compare_proc_modules(const char *from, const char *to);
300 int setup_list(struct strlist **list, const char *list_str,
301 const char *list_name);
302 int setup_intlist(struct intlist **list, const char *list_str,
303 const char *list_name);
305 #ifdef HAVE_LIBELF_SUPPORT
306 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
307 void arch__elf_sym_adjust(GElf_Sym *sym);
313 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
315 #endif /* __PERF_SYMBOL */