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
;
65 void symbol__delete(struct symbol
*sym
);
66 void symbols__delete(struct rb_root
*symbols
);
68 /* symbols__for_each_entry - iterate over symbols (rb_root)
70 * @symbols: the rb_root of symbols
71 * @pos: the 'struct symbol *' to use as a loop cursor
72 * @nd: the 'struct rb_node *' to use as a temporary storage
74 #define symbols__for_each_entry(symbols, pos, nd) \
75 for (nd = rb_first(symbols); \
76 nd && (pos = rb_entry(nd, struct symbol, rb_node)); \
79 static inline size_t symbol__size(const struct symbol
*sym
)
81 return sym
->end
- sym
->start
;
88 unsigned short priv_size
;
89 unsigned short nr_events
;
90 bool try_vmlinux_path
,
93 ignore_vmlinux_buildid
,
103 show_cpu_utilization
,
119 const char *vmlinux_name
,
123 const char *default_guest_vmlinux_name
,
124 *default_guest_kallsyms
,
125 *default_guest_modules
;
126 const char *guestmount
;
127 const char *dso_list_str
,
133 struct strlist
*dso_list
,
140 struct intlist
*pid_list
,
145 extern struct symbol_conf symbol_conf
;
147 struct symbol_name_rb_node
{
148 struct rb_node rb_node
;
152 static inline int __symbol__join_symfs(char *bf
, size_t size
, const char *path
)
154 return path__join(bf
, size
, symbol_conf
.symfs
, path
);
157 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
159 extern int vmlinux_path__nr_entries
;
160 extern char **vmlinux_path
;
162 static inline void *symbol__priv(struct symbol
*sym
)
164 return ((void *)sym
) - symbol_conf
.priv_size
;
167 struct ref_reloc_sym
{
170 u64 unrelocated_addr
;
178 struct addr_map_symbol
{
186 struct addr_map_symbol from
;
187 struct addr_map_symbol to
;
188 struct branch_flags flags
;
192 struct addr_map_symbol iaddr
;
193 struct addr_map_symbol daddr
;
194 union perf_mem_data_src data_src
;
197 struct addr_location
{
198 struct machine
*machine
;
199 struct thread
*thread
;
213 enum dso_binary_type type
;
215 #ifdef HAVE_LIBELF_SUPPORT
235 void symsrc__destroy(struct symsrc
*ss
);
236 int symsrc__init(struct symsrc
*ss
, struct dso
*dso
, const char *name
,
237 enum dso_binary_type type
);
238 bool symsrc__has_symtab(struct symsrc
*ss
);
239 bool symsrc__possibly_runtime(struct symsrc
*ss
);
241 int dso__load(struct dso
*dso
, struct map
*map
, symbol_filter_t filter
);
242 int dso__load_vmlinux(struct dso
*dso
, struct map
*map
,
243 const char *vmlinux
, bool vmlinux_allocated
,
244 symbol_filter_t filter
);
245 int dso__load_vmlinux_path(struct dso
*dso
, struct map
*map
,
246 symbol_filter_t filter
);
247 int __dso__load_kallsyms(struct dso
*dso
, const char *filename
, struct map
*map
,
248 bool no_kcore
, symbol_filter_t filter
);
249 int dso__load_kallsyms(struct dso
*dso
, const char *filename
, struct map
*map
,
250 symbol_filter_t filter
);
252 void dso__insert_symbol(struct dso
*dso
, enum map_type type
,
255 struct symbol
*dso__find_symbol(struct dso
*dso
, enum map_type type
,
257 struct symbol
*dso__find_symbol_by_name(struct dso
*dso
, enum map_type type
,
259 struct symbol
*symbol__next_by_name(struct symbol
*sym
);
261 struct symbol
*dso__first_symbol(struct dso
*dso
, enum map_type type
);
262 struct symbol
*dso__next_symbol(struct symbol
*sym
);
264 enum dso_type
dso__type_fd(int fd
);
266 int filename__read_build_id(const char *filename
, void *bf
, size_t size
);
267 int sysfs__read_build_id(const char *filename
, void *bf
, size_t size
);
268 int modules__parse(const char *filename
, void *arg
,
269 int (*process_module
)(void *arg
, const char *name
,
271 int filename__read_debuglink(const char *filename
, char *debuglink
,
275 int symbol__init(struct perf_env
*env
);
276 void symbol__exit(void);
277 void symbol__elf_init(void);
278 struct symbol
*symbol__new(u64 start
, u64 len
, u8 binding
, const char *name
);
279 size_t __symbol__fprintf_symname_offs(const struct symbol
*sym
,
280 const struct addr_location
*al
,
281 bool unknown_as_addr
, FILE *fp
);
282 size_t symbol__fprintf_symname_offs(const struct symbol
*sym
,
283 const struct addr_location
*al
, FILE *fp
);
284 size_t __symbol__fprintf_symname(const struct symbol
*sym
,
285 const struct addr_location
*al
,
286 bool unknown_as_addr
, FILE *fp
);
287 size_t symbol__fprintf_symname(const struct symbol
*sym
, FILE *fp
);
288 size_t symbol__fprintf(struct symbol
*sym
, FILE *fp
);
289 bool symbol_type__is_a(char symbol_type
, enum map_type map_type
);
290 bool symbol__restricted_filename(const char *filename
,
291 const char *restricted_filename
);
292 bool symbol__is_idle(struct symbol
*sym
);
293 int symbol__config_symfs(const struct option
*opt __maybe_unused
,
294 const char *dir
, int unset __maybe_unused
);
296 int dso__load_sym(struct dso
*dso
, struct map
*map
, struct symsrc
*syms_ss
,
297 struct symsrc
*runtime_ss
, symbol_filter_t filter
,
299 int dso__synthesize_plt_symbols(struct dso
*dso
, struct symsrc
*ss
,
300 struct map
*map
, symbol_filter_t filter
);
302 void symbols__insert(struct rb_root
*symbols
, struct symbol
*sym
);
303 void symbols__fixup_duplicate(struct rb_root
*symbols
);
304 void symbols__fixup_end(struct rb_root
*symbols
);
305 void __map_groups__fixup_end(struct map_groups
*mg
, enum map_type type
);
307 typedef int (*mapfn_t
)(u64 start
, u64 len
, u64 pgoff
, void *data
);
308 int file__read_maps(int fd
, bool exe
, mapfn_t mapfn
, void *data
,
311 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
313 struct kcore_extract
{
314 char *kcore_filename
;
318 char extract_filename
[sizeof(PERF_KCORE_EXTRACT
)];
322 int kcore_extract__create(struct kcore_extract
*kce
);
323 void kcore_extract__delete(struct kcore_extract
*kce
);
325 int kcore_copy(const char *from_dir
, const char *to_dir
);
326 int compare_proc_modules(const char *from
, const char *to
);
328 int setup_list(struct strlist
**list
, const char *list_str
,
329 const char *list_name
);
330 int setup_intlist(struct intlist
**list
, const char *list_str
,
331 const char *list_name
);
333 #ifdef HAVE_LIBELF_SUPPORT
334 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr
);
335 void arch__sym_update(struct symbol
*s
, GElf_Sym
*sym
);
341 int arch__choose_best_symbol(struct symbol
*syma
, struct symbol
*symb
);
343 #endif /* __PERF_SYMBOL */