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
,
235 struct symbol
*dso__first_symbol(struct dso
*dso
, enum map_type type
);
236 struct symbol
*dso__next_symbol(struct symbol
*sym
);
238 enum dso_type
dso__type_fd(int fd
);
240 int filename__read_build_id(const char *filename
, void *bf
, size_t size
);
241 int sysfs__read_build_id(const char *filename
, void *bf
, size_t size
);
242 int modules__parse(const char *filename
, void *arg
,
243 int (*process_module
)(void *arg
, const char *name
,
245 int filename__read_debuglink(const char *filename
, char *debuglink
,
248 struct perf_session_env
;
249 int symbol__init(struct perf_session_env
*env
);
250 void symbol__exit(void);
251 void symbol__elf_init(void);
252 struct symbol
*symbol__new(u64 start
, u64 len
, u8 binding
, const char *name
);
253 size_t symbol__fprintf_symname_offs(const struct symbol
*sym
,
254 const struct addr_location
*al
, FILE *fp
);
255 size_t symbol__fprintf_symname(const struct symbol
*sym
, FILE *fp
);
256 size_t symbol__fprintf(struct symbol
*sym
, FILE *fp
);
257 bool symbol_type__is_a(char symbol_type
, enum map_type map_type
);
258 bool symbol__restricted_filename(const char *filename
,
259 const char *restricted_filename
);
260 bool symbol__is_idle(struct symbol
*sym
);
262 int dso__load_sym(struct dso
*dso
, struct map
*map
, struct symsrc
*syms_ss
,
263 struct symsrc
*runtime_ss
, symbol_filter_t filter
,
265 int dso__synthesize_plt_symbols(struct dso
*dso
, struct symsrc
*ss
,
266 struct map
*map
, symbol_filter_t filter
);
268 void symbols__insert(struct rb_root
*symbols
, struct symbol
*sym
);
269 void symbols__fixup_duplicate(struct rb_root
*symbols
);
270 void symbols__fixup_end(struct rb_root
*symbols
);
271 void __map_groups__fixup_end(struct map_groups
*mg
, enum map_type type
);
273 typedef int (*mapfn_t
)(u64 start
, u64 len
, u64 pgoff
, void *data
);
274 int file__read_maps(int fd
, bool exe
, mapfn_t mapfn
, void *data
,
277 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
279 struct kcore_extract
{
280 char *kcore_filename
;
284 char extract_filename
[sizeof(PERF_KCORE_EXTRACT
)];
288 int kcore_extract__create(struct kcore_extract
*kce
);
289 void kcore_extract__delete(struct kcore_extract
*kce
);
291 int kcore_copy(const char *from_dir
, const char *to_dir
);
292 int compare_proc_modules(const char *from
, const char *to
);
294 int setup_list(struct strlist
**list
, const char *list_str
,
295 const char *list_name
);
297 #endif /* __PERF_SYMBOL */