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;
83 unsigned short priv_size;
84 unsigned short nr_events;
85 bool try_vmlinux_path,
87 ignore_vmlinux_buildid,
107 const char *vmlinux_name,
111 const char *default_guest_vmlinux_name,
112 *default_guest_kallsyms,
113 *default_guest_modules;
114 const char *guestmount;
115 const char *dso_list_str,
119 struct strlist *dso_list,
129 extern struct symbol_conf symbol_conf;
131 static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
133 return path__join(bf, size, symbol_conf.symfs, path);
136 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
138 extern int vmlinux_path__nr_entries;
139 extern char **vmlinux_path;
141 static inline void *symbol__priv(struct symbol *sym)
143 return ((void *)sym) - symbol_conf.priv_size;
146 struct ref_reloc_sym {
149 u64 unrelocated_addr;
159 struct addr_map_symbol {
167 struct addr_map_symbol from;
168 struct addr_map_symbol to;
169 struct branch_flags flags;
173 struct addr_map_symbol iaddr;
174 struct addr_map_symbol daddr;
175 union perf_mem_data_src data_src;
178 struct addr_location {
179 struct machine *machine;
180 struct thread *thread;
193 enum dso_binary_type type;
195 #ifdef HAVE_LIBELF_SUPPORT
215 void symsrc__destroy(struct symsrc *ss);
216 int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
217 enum dso_binary_type type);
218 bool symsrc__has_symtab(struct symsrc *ss);
219 bool symsrc__possibly_runtime(struct symsrc *ss);
221 int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
222 int dso__load_vmlinux(struct dso *dso, struct map *map,
223 const char *vmlinux, bool vmlinux_allocated,
224 symbol_filter_t filter);
225 int dso__load_vmlinux_path(struct dso *dso, struct map *map,
226 symbol_filter_t filter);
227 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
228 symbol_filter_t filter);
230 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
232 struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
234 struct symbol *symbol__next_by_name(struct symbol *sym);
236 struct symbol *dso__first_symbol(struct dso *dso, enum map_type type);
237 struct symbol *dso__next_symbol(struct symbol *sym);
239 enum dso_type dso__type_fd(int fd);
241 int filename__read_build_id(const char *filename, void *bf, size_t size);
242 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
243 int modules__parse(const char *filename, void *arg,
244 int (*process_module)(void *arg, const char *name,
246 int filename__read_debuglink(const char *filename, char *debuglink,
249 struct perf_session_env;
250 int symbol__init(struct perf_session_env *env);
251 void symbol__exit(void);
252 void symbol__elf_init(void);
253 struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
254 size_t symbol__fprintf_symname_offs(const struct symbol *sym,
255 const struct addr_location *al, FILE *fp);
256 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
257 size_t symbol__fprintf(struct symbol *sym, FILE *fp);
258 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
259 bool symbol__restricted_filename(const char *filename,
260 const char *restricted_filename);
261 bool symbol__is_idle(struct symbol *sym);
263 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
264 struct symsrc *runtime_ss, symbol_filter_t filter,
266 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
267 struct map *map, symbol_filter_t filter);
269 void symbols__insert(struct rb_root *symbols, struct symbol *sym);
270 void symbols__fixup_duplicate(struct rb_root *symbols);
271 void symbols__fixup_end(struct rb_root *symbols);
272 void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
274 typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
275 int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
278 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
280 struct kcore_extract {
281 char *kcore_filename;
285 char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
289 int kcore_extract__create(struct kcore_extract *kce);
290 void kcore_extract__delete(struct kcore_extract *kce);
292 int kcore_copy(const char *from_dir, const char *to_dir);
293 int compare_proc_modules(const char *from, const char *to);
295 int setup_list(struct strlist **list, const char *list_str,
296 const char *list_name);
298 #endif /* __PERF_SYMBOL */