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,
122 const char *vmlinux_name,
126 const char *default_guest_vmlinux_name,
127 *default_guest_kallsyms,
128 *default_guest_modules;
129 const char *guestmount;
130 const char *dso_list_str,
137 struct strlist *dso_list,
145 struct intlist *pid_list,
150 extern struct symbol_conf symbol_conf;
152 struct symbol_name_rb_node {
153 struct rb_node rb_node;
157 static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
159 return path__join(bf, size, symbol_conf.symfs, path);
162 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
164 extern int vmlinux_path__nr_entries;
165 extern char **vmlinux_path;
167 static inline void *symbol__priv(struct symbol *sym)
169 return ((void *)sym) - symbol_conf.priv_size;
172 struct ref_reloc_sym {
175 u64 unrelocated_addr;
183 struct addr_map_symbol {
191 struct addr_map_symbol from;
192 struct addr_map_symbol to;
193 struct branch_flags flags;
199 struct addr_map_symbol iaddr;
200 struct addr_map_symbol daddr;
201 union perf_mem_data_src data_src;
204 struct addr_location {
205 struct machine *machine;
206 struct thread *thread;
220 enum dso_binary_type type;
222 #ifdef HAVE_LIBELF_SUPPORT
242 void symsrc__destroy(struct symsrc *ss);
243 int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
244 enum dso_binary_type type);
245 bool symsrc__has_symtab(struct symsrc *ss);
246 bool symsrc__possibly_runtime(struct symsrc *ss);
248 int dso__load(struct dso *dso, struct map *map);
249 int dso__load_vmlinux(struct dso *dso, struct map *map,
250 const char *vmlinux, bool vmlinux_allocated);
251 int dso__load_vmlinux_path(struct dso *dso, struct map *map);
252 int __dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
254 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map);
256 void dso__insert_symbol(struct dso *dso, enum map_type type,
259 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
261 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
263 struct symbol *symbol__next_by_name(struct symbol *sym);
265 struct symbol *dso__first_symbol(struct dso *dso, enum map_type type);
266 struct symbol *dso__last_symbol(struct dso *dso, enum map_type type);
267 struct symbol *dso__next_symbol(struct symbol *sym);
269 enum dso_type dso__type_fd(int fd);
271 int filename__read_build_id(const char *filename, void *bf, size_t size);
272 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
273 int modules__parse(const char *filename, void *arg,
274 int (*process_module)(void *arg, const char *name,
276 int filename__read_debuglink(const char *filename, char *debuglink,
280 int symbol__init(struct perf_env *env);
281 void symbol__exit(void);
282 void symbol__elf_init(void);
283 int symbol__annotation_init(void);
285 struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
286 size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
287 const struct addr_location *al,
288 bool unknown_as_addr,
289 bool print_offsets, FILE *fp);
290 size_t symbol__fprintf_symname_offs(const struct symbol *sym,
291 const struct addr_location *al, FILE *fp);
292 size_t __symbol__fprintf_symname(const struct symbol *sym,
293 const struct addr_location *al,
294 bool unknown_as_addr, FILE *fp);
295 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
296 size_t symbol__fprintf(struct symbol *sym, FILE *fp);
297 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
298 bool symbol__restricted_filename(const char *filename,
299 const char *restricted_filename);
300 int symbol__config_symfs(const struct option *opt __maybe_unused,
301 const char *dir, int unset __maybe_unused);
303 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
304 struct symsrc *runtime_ss, int kmodule);
305 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
308 void __symbols__insert(struct rb_root *symbols, struct symbol *sym, bool kernel);
309 void symbols__insert(struct rb_root *symbols, struct symbol *sym);
310 void symbols__fixup_duplicate(struct rb_root *symbols);
311 void symbols__fixup_end(struct rb_root *symbols);
312 void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
314 typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
315 int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
318 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
320 struct kcore_extract {
321 char *kcore_filename;
325 char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
329 int kcore_extract__create(struct kcore_extract *kce);
330 void kcore_extract__delete(struct kcore_extract *kce);
332 int kcore_copy(const char *from_dir, const char *to_dir);
333 int compare_proc_modules(const char *from, const char *to);
335 int setup_list(struct strlist **list, const char *list_str,
336 const char *list_name);
337 int setup_intlist(struct intlist **list, const char *list_str,
338 const char *list_name);
340 #ifdef HAVE_LIBELF_SUPPORT
341 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
342 void arch__sym_update(struct symbol *s, GElf_Sym *sym);
348 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
350 /* structure containing an SDT note's info */
352 char *name; /* name of the note*/
353 char *provider; /* provider name */
354 bool bit32; /* whether the location is 32 bits? */
355 union { /* location, base and semaphore addrs */
359 struct list_head note_list; /* SDT notes' list */
362 int get_sdt_note_list(struct list_head *head, const char *target);
363 int cleanup_sdt_note_list(struct list_head *sdt_notes);
364 int sdt_notes__get_count(struct list_head *start);
366 #define SDT_BASE_SCN ".stapsdt.base"
367 #define SDT_NOTE_SCN ".note.stapsdt"
368 #define SDT_NOTE_TYPE 3
369 #define SDT_NOTE_NAME "stapsdt"
372 #endif /* __PERF_SYMBOL */