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,
89 ignore_vmlinux_buildid,
114 const char *vmlinux_name,
118 const char *default_guest_vmlinux_name,
119 *default_guest_kallsyms,
120 *default_guest_modules;
121 const char *guestmount;
122 const char *dso_list_str,
128 struct strlist *dso_list,
135 struct intlist *pid_list,
140 extern struct symbol_conf symbol_conf;
142 static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
144 return path__join(bf, size, symbol_conf.symfs, path);
147 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
149 extern int vmlinux_path__nr_entries;
150 extern char **vmlinux_path;
152 static inline void *symbol__priv(struct symbol *sym)
154 return ((void *)sym) - symbol_conf.priv_size;
157 struct ref_reloc_sym {
160 u64 unrelocated_addr;
168 struct addr_map_symbol {
176 struct addr_map_symbol from;
177 struct addr_map_symbol to;
178 struct branch_flags flags;
182 struct addr_map_symbol iaddr;
183 struct addr_map_symbol daddr;
184 union perf_mem_data_src data_src;
187 struct addr_location {
188 struct machine *machine;
189 struct thread *thread;
203 enum dso_binary_type type;
205 #ifdef HAVE_LIBELF_SUPPORT
225 void symsrc__destroy(struct symsrc *ss);
226 int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
227 enum dso_binary_type type);
228 bool symsrc__has_symtab(struct symsrc *ss);
229 bool symsrc__possibly_runtime(struct symsrc *ss);
231 int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
232 int dso__load_vmlinux(struct dso *dso, struct map *map,
233 const char *vmlinux, bool vmlinux_allocated,
234 symbol_filter_t filter);
235 int dso__load_vmlinux_path(struct dso *dso, struct map *map,
236 symbol_filter_t filter);
237 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
238 symbol_filter_t filter);
240 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
242 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
244 struct symbol *symbol__next_by_name(struct symbol *sym);
246 struct symbol *dso__first_symbol(struct dso *dso, enum map_type type);
247 struct symbol *dso__next_symbol(struct symbol *sym);
249 enum dso_type dso__type_fd(int fd);
251 int filename__read_build_id(const char *filename, void *bf, size_t size);
252 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
253 int modules__parse(const char *filename, void *arg,
254 int (*process_module)(void *arg, const char *name,
256 int filename__read_debuglink(const char *filename, char *debuglink,
260 int symbol__init(struct perf_env *env);
261 void symbol__exit(void);
262 void symbol__elf_init(void);
263 struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
264 size_t symbol__fprintf_symname_offs(const struct symbol *sym,
265 const struct addr_location *al, FILE *fp);
266 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
267 size_t symbol__fprintf(struct symbol *sym, FILE *fp);
268 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
269 bool symbol__restricted_filename(const char *filename,
270 const char *restricted_filename);
271 bool symbol__is_idle(struct symbol *sym);
273 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
274 struct symsrc *runtime_ss, symbol_filter_t filter,
276 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
277 struct map *map, symbol_filter_t filter);
279 void symbols__insert(struct rb_root *symbols, struct symbol *sym);
280 void symbols__fixup_duplicate(struct rb_root *symbols);
281 void symbols__fixup_end(struct rb_root *symbols);
282 void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
284 typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
285 int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
288 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
290 struct kcore_extract {
291 char *kcore_filename;
295 char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
299 int kcore_extract__create(struct kcore_extract *kce);
300 void kcore_extract__delete(struct kcore_extract *kce);
302 int kcore_copy(const char *from_dir, const char *to_dir);
303 int compare_proc_modules(const char *from, const char *to);
305 int setup_list(struct strlist **list, const char *list_str,
306 const char *list_name);
307 int setup_intlist(struct intlist **list, const char *list_str,
308 const char *list_name);
310 #ifdef HAVE_LIBELF_SUPPORT
311 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
312 void arch__elf_sym_adjust(GElf_Sym *sym);
318 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
320 #endif /* __PERF_SYMBOL */