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 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 #define DSO__NAME_KALLSYMS "[kernel.kallsyms]"
48 #define DSO__NAME_KCORE "[kernel.kcore]"
50 /** struct symbol - symtab entry
52 * @ignore - resolvable but tools ignore it (e.g. idle routines)
55 struct rb_node rb_node;
66 void symbol__delete(struct symbol *sym);
67 void symbols__delete(struct rb_root *symbols);
69 /* symbols__for_each_entry - iterate over symbols (rb_root)
71 * @symbols: the rb_root of symbols
72 * @pos: the 'struct symbol *' to use as a loop cursor
73 * @nd: the 'struct rb_node *' to use as a temporary storage
75 #define symbols__for_each_entry(symbols, pos, nd) \
76 for (nd = rb_first(symbols); \
77 nd && (pos = rb_entry(nd, struct symbol, rb_node)); \
80 static inline size_t symbol__size(const struct symbol *sym)
82 return sym->end - sym->start;
89 unsigned short priv_size;
90 unsigned short nr_events;
91 bool try_vmlinux_path,
95 ignore_vmlinux_buildid,
104 show_branchflag_count,
106 show_cpu_utilization,
123 const char *vmlinux_name,
127 const char *default_guest_vmlinux_name,
128 *default_guest_kallsyms,
129 *default_guest_modules;
130 const char *guestmount;
131 const char *dso_list_str,
138 struct strlist *dso_list,
146 struct intlist *pid_list,
151 extern struct symbol_conf symbol_conf;
153 struct symbol_name_rb_node {
154 struct rb_node rb_node;
158 static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
160 return path__join(bf, size, symbol_conf.symfs, path);
163 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
165 extern int vmlinux_path__nr_entries;
166 extern char **vmlinux_path;
168 static inline void *symbol__priv(struct symbol *sym)
170 return ((void *)sym) - symbol_conf.priv_size;
173 struct ref_reloc_sym {
176 u64 unrelocated_addr;
184 struct addr_map_symbol {
192 struct addr_map_symbol from;
193 struct addr_map_symbol to;
194 struct branch_flags flags;
200 struct addr_map_symbol iaddr;
201 struct addr_map_symbol daddr;
202 union perf_mem_data_src data_src;
205 struct addr_location {
206 struct machine *machine;
207 struct thread *thread;
221 enum dso_binary_type type;
223 #ifdef HAVE_LIBELF_SUPPORT
243 void symsrc__destroy(struct symsrc *ss);
244 int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
245 enum dso_binary_type type);
246 bool symsrc__has_symtab(struct symsrc *ss);
247 bool symsrc__possibly_runtime(struct symsrc *ss);
249 int dso__load(struct dso *dso, struct map *map);
250 int dso__load_vmlinux(struct dso *dso, struct map *map,
251 const char *vmlinux, bool vmlinux_allocated);
252 int dso__load_vmlinux_path(struct dso *dso, struct map *map);
253 int __dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
255 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map);
257 void dso__insert_symbol(struct dso *dso, enum map_type type,
260 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
262 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
264 struct symbol *symbol__next_by_name(struct symbol *sym);
266 struct symbol *dso__first_symbol(struct dso *dso, enum map_type type);
267 struct symbol *dso__last_symbol(struct dso *dso, enum map_type type);
268 struct symbol *dso__next_symbol(struct symbol *sym);
270 enum dso_type dso__type_fd(int fd);
272 int filename__read_build_id(const char *filename, void *bf, size_t size);
273 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
274 int modules__parse(const char *filename, void *arg,
275 int (*process_module)(void *arg, const char *name,
277 int filename__read_debuglink(const char *filename, char *debuglink,
281 int symbol__init(struct perf_env *env);
282 void symbol__exit(void);
283 void symbol__elf_init(void);
284 int symbol__annotation_init(void);
286 struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
287 size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
288 const struct addr_location *al,
289 bool unknown_as_addr,
290 bool print_offsets, FILE *fp);
291 size_t symbol__fprintf_symname_offs(const struct symbol *sym,
292 const struct addr_location *al, FILE *fp);
293 size_t __symbol__fprintf_symname(const struct symbol *sym,
294 const struct addr_location *al,
295 bool unknown_as_addr, FILE *fp);
296 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
297 size_t symbol__fprintf(struct symbol *sym, FILE *fp);
298 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
299 bool symbol__restricted_filename(const char *filename,
300 const char *restricted_filename);
301 int symbol__config_symfs(const struct option *opt __maybe_unused,
302 const char *dir, int unset __maybe_unused);
304 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
305 struct symsrc *runtime_ss, int kmodule);
306 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
309 char *dso__demangle_sym(struct dso *dso, int kmodule, char *elf_name);
311 void __symbols__insert(struct rb_root *symbols, struct symbol *sym, bool kernel);
312 void symbols__insert(struct rb_root *symbols, struct symbol *sym);
313 void symbols__fixup_duplicate(struct rb_root *symbols);
314 void symbols__fixup_end(struct rb_root *symbols);
315 void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
317 typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
318 int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
321 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
323 struct kcore_extract {
324 char *kcore_filename;
328 char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
332 int kcore_extract__create(struct kcore_extract *kce);
333 void kcore_extract__delete(struct kcore_extract *kce);
335 int kcore_copy(const char *from_dir, const char *to_dir);
336 int compare_proc_modules(const char *from, const char *to);
338 int setup_list(struct strlist **list, const char *list_str,
339 const char *list_name);
340 int setup_intlist(struct intlist **list, const char *list_str,
341 const char *list_name);
343 #ifdef HAVE_LIBELF_SUPPORT
344 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
345 void arch__sym_update(struct symbol *s, GElf_Sym *sym);
351 int arch__compare_symbol_names(const char *namea, const char *nameb);
352 int arch__compare_symbol_names_n(const char *namea, const char *nameb,
354 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
356 enum symbol_tag_include {
357 SYMBOL_TAG_INCLUDE__NONE = 0,
358 SYMBOL_TAG_INCLUDE__DEFAULT_ONLY
361 int symbol__match_symbol_name(const char *namea, const char *nameb,
362 enum symbol_tag_include includes);
364 /* structure containing an SDT note's info */
366 char *name; /* name of the note*/
367 char *provider; /* provider name */
369 bool bit32; /* whether the location is 32 bits? */
370 union { /* location, base and semaphore addrs */
374 struct list_head note_list; /* SDT notes' list */
377 int get_sdt_note_list(struct list_head *head, const char *target);
378 int cleanup_sdt_note_list(struct list_head *sdt_notes);
379 int sdt_notes__get_count(struct list_head *start);
381 #define SDT_BASE_SCN ".stapsdt.base"
382 #define SDT_NOTE_SCN ".note.stapsdt"
383 #define SDT_NOTE_TYPE 3
384 #define SDT_NOTE_NAME "stapsdt"
387 #endif /* __PERF_SYMBOL */