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
,
88 ignore_vmlinux_buildid
,
111 const char *vmlinux_name
,
115 const char *default_guest_vmlinux_name
,
116 *default_guest_kallsyms
,
117 *default_guest_modules
;
118 const char *guestmount
;
119 const char *dso_list_str
,
125 struct strlist
*dso_list
,
132 struct intlist
*pid_list
,
137 extern struct symbol_conf symbol_conf
;
139 static inline int __symbol__join_symfs(char *bf
, size_t size
, const char *path
)
141 return path__join(bf
, size
, symbol_conf
.symfs
, path
);
144 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
146 extern int vmlinux_path__nr_entries
;
147 extern char **vmlinux_path
;
149 static inline void *symbol__priv(struct symbol
*sym
)
151 return ((void *)sym
) - symbol_conf
.priv_size
;
154 struct ref_reloc_sym
{
157 u64 unrelocated_addr
;
165 struct addr_map_symbol
{
173 struct addr_map_symbol from
;
174 struct addr_map_symbol to
;
175 struct branch_flags flags
;
179 struct addr_map_symbol iaddr
;
180 struct addr_map_symbol daddr
;
181 union perf_mem_data_src data_src
;
184 struct addr_location
{
185 struct machine
*machine
;
186 struct thread
*thread
;
199 enum dso_binary_type type
;
201 #ifdef HAVE_LIBELF_SUPPORT
221 void symsrc__destroy(struct symsrc
*ss
);
222 int symsrc__init(struct symsrc
*ss
, struct dso
*dso
, const char *name
,
223 enum dso_binary_type type
);
224 bool symsrc__has_symtab(struct symsrc
*ss
);
225 bool symsrc__possibly_runtime(struct symsrc
*ss
);
227 int dso__load(struct dso
*dso
, struct map
*map
, symbol_filter_t filter
);
228 int dso__load_vmlinux(struct dso
*dso
, struct map
*map
,
229 const char *vmlinux
, bool vmlinux_allocated
,
230 symbol_filter_t filter
);
231 int dso__load_vmlinux_path(struct dso
*dso
, struct map
*map
,
232 symbol_filter_t filter
);
233 int dso__load_kallsyms(struct dso
*dso
, const char *filename
, struct map
*map
,
234 symbol_filter_t filter
);
236 struct symbol
*dso__find_symbol(struct dso
*dso
, enum map_type type
,
238 struct symbol
*dso__find_symbol_by_name(struct dso
*dso
, enum map_type type
,
240 struct symbol
*symbol__next_by_name(struct symbol
*sym
);
242 struct symbol
*dso__first_symbol(struct dso
*dso
, enum map_type type
);
243 struct symbol
*dso__next_symbol(struct symbol
*sym
);
245 enum dso_type
dso__type_fd(int fd
);
247 int filename__read_build_id(const char *filename
, void *bf
, size_t size
);
248 int sysfs__read_build_id(const char *filename
, void *bf
, size_t size
);
249 int modules__parse(const char *filename
, void *arg
,
250 int (*process_module
)(void *arg
, const char *name
,
252 int filename__read_debuglink(const char *filename
, char *debuglink
,
256 int symbol__init(struct perf_env
*env
);
257 void symbol__exit(void);
258 void symbol__elf_init(void);
259 struct symbol
*symbol__new(u64 start
, u64 len
, u8 binding
, const char *name
);
260 size_t symbol__fprintf_symname_offs(const struct symbol
*sym
,
261 const struct addr_location
*al
, FILE *fp
);
262 size_t symbol__fprintf_symname(const struct symbol
*sym
, FILE *fp
);
263 size_t symbol__fprintf(struct symbol
*sym
, FILE *fp
);
264 bool symbol_type__is_a(char symbol_type
, enum map_type map_type
);
265 bool symbol__restricted_filename(const char *filename
,
266 const char *restricted_filename
);
267 bool symbol__is_idle(struct symbol
*sym
);
269 int dso__load_sym(struct dso
*dso
, struct map
*map
, struct symsrc
*syms_ss
,
270 struct symsrc
*runtime_ss
, symbol_filter_t filter
,
272 int dso__synthesize_plt_symbols(struct dso
*dso
, struct symsrc
*ss
,
273 struct map
*map
, symbol_filter_t filter
);
275 void symbols__insert(struct rb_root
*symbols
, struct symbol
*sym
);
276 void symbols__fixup_duplicate(struct rb_root
*symbols
);
277 void symbols__fixup_end(struct rb_root
*symbols
);
278 void __map_groups__fixup_end(struct map_groups
*mg
, enum map_type type
);
280 typedef int (*mapfn_t
)(u64 start
, u64 len
, u64 pgoff
, void *data
);
281 int file__read_maps(int fd
, bool exe
, mapfn_t mapfn
, void *data
,
284 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
286 struct kcore_extract
{
287 char *kcore_filename
;
291 char extract_filename
[sizeof(PERF_KCORE_EXTRACT
)];
295 int kcore_extract__create(struct kcore_extract
*kce
);
296 void kcore_extract__delete(struct kcore_extract
*kce
);
298 int kcore_copy(const char *from_dir
, const char *to_dir
);
299 int compare_proc_modules(const char *from
, const char *to
);
301 int setup_list(struct strlist
**list
, const char *list_str
,
302 const char *list_name
);
303 int setup_intlist(struct intlist
**list
, const char *list_str
,
304 const char *list_name
);
306 #ifdef HAVE_LIBELF_SUPPORT
307 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr
);
308 void arch__elf_sym_adjust(GElf_Sym
*sym
);
314 int arch__choose_best_symbol(struct symbol
*syma
, struct symbol
*symb
);
316 #endif /* __PERF_SYMBOL */