This source file includes following definitions.
- symbol__size
- __symbol__join_symfs
- symbol__priv
- __mem_info__zput
- __block_info__zput
1
2 #ifndef __PERF_SYMBOL
3 #define __PERF_SYMBOL 1
4
5 #include <linux/types.h>
6 #include <linux/refcount.h>
7 #include <stdbool.h>
8 #include <stdint.h>
9 #include <linux/list.h>
10 #include <linux/rbtree.h>
11 #include <stdio.h>
12 #include "path.h"
13 #include "symbol_conf.h"
14
15 #ifdef HAVE_LIBELF_SUPPORT
16 #include <libelf.h>
17 #include <gelf.h>
18 #endif
19 #include <elf.h>
20
21 struct dso;
22 struct map;
23 struct map_groups;
24 struct option;
25
26
27
28
29
30 #ifdef HAVE_LIBELF_MMAP_SUPPORT
31 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
32 #else
33 # define PERF_ELF_C_READ_MMAP ELF_C_READ
34 #endif
35
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);
39 #endif
40
41
42
43
44
45 struct symbol {
46 struct rb_node rb_node;
47 u64 start;
48 u64 end;
49 u16 namelen;
50 u8 type:4;
51 u8 binding:4;
52 u8 idle:1;
53 u8 ignore:1;
54 u8 inlined:1;
55 u8 arch_sym;
56 bool annotate2;
57 char name[0];
58 };
59
60 void symbol__delete(struct symbol *sym);
61 void symbols__delete(struct rb_root_cached *symbols);
62
63
64
65
66
67
68
69 #define symbols__for_each_entry(symbols, pos, nd) \
70 for (nd = rb_first_cached(symbols); \
71 nd && (pos = rb_entry(nd, struct symbol, rb_node)); \
72 nd = rb_next(nd))
73
74 static inline size_t symbol__size(const struct symbol *sym)
75 {
76 return sym->end - sym->start;
77 }
78
79 struct strlist;
80 struct intlist;
81
82 struct symbol_name_rb_node {
83 struct rb_node rb_node;
84 struct symbol sym;
85 };
86
87 static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
88 {
89 return path__join(bf, size, symbol_conf.symfs, path);
90 }
91
92 #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
93
94 extern int vmlinux_path__nr_entries;
95 extern char **vmlinux_path;
96
97 static inline void *symbol__priv(struct symbol *sym)
98 {
99 return ((void *)sym) - symbol_conf.priv_size;
100 }
101
102 struct ref_reloc_sym {
103 const char *name;
104 u64 addr;
105 u64 unrelocated_addr;
106 };
107
108 struct block_info {
109 struct symbol *sym;
110 u64 start;
111 u64 end;
112 u64 cycles;
113 u64 cycles_aggr;
114 int num;
115 int num_aggr;
116 refcount_t refcnt;
117 };
118
119 struct addr_location {
120 struct machine *machine;
121 struct thread *thread;
122 struct map *map;
123 struct symbol *sym;
124 const char *srcline;
125 u64 addr;
126 char level;
127 u8 filtered;
128 u8 cpumode;
129 s32 cpu;
130 s32 socket;
131 };
132
133 int dso__load(struct dso *dso, struct map *map);
134 int dso__load_vmlinux(struct dso *dso, struct map *map,
135 const char *vmlinux, bool vmlinux_allocated);
136 int dso__load_vmlinux_path(struct dso *dso, struct map *map);
137 int __dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
138 bool no_kcore);
139 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map);
140
141 void dso__insert_symbol(struct dso *dso,
142 struct symbol *sym);
143
144 struct symbol *dso__find_symbol(struct dso *dso, u64 addr);
145 struct symbol *dso__find_symbol_by_name(struct dso *dso, const char *name);
146
147 struct symbol *symbol__next_by_name(struct symbol *sym);
148
149 struct symbol *dso__first_symbol(struct dso *dso);
150 struct symbol *dso__last_symbol(struct dso *dso);
151 struct symbol *dso__next_symbol(struct symbol *sym);
152
153 enum dso_type dso__type_fd(int fd);
154
155 int filename__read_build_id(const char *filename, void *bf, size_t size);
156 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
157 int modules__parse(const char *filename, void *arg,
158 int (*process_module)(void *arg, const char *name,
159 u64 start, u64 size));
160 int filename__read_debuglink(const char *filename, char *debuglink,
161 size_t size);
162
163 struct perf_env;
164 int symbol__init(struct perf_env *env);
165 void symbol__exit(void);
166 void symbol__elf_init(void);
167 int symbol__annotation_init(void);
168
169 struct symbol *symbol__new(u64 start, u64 len, u8 binding, u8 type, const char *name);
170 size_t __symbol__fprintf_symname_offs(const struct symbol *sym,
171 const struct addr_location *al,
172 bool unknown_as_addr,
173 bool print_offsets, FILE *fp);
174 size_t symbol__fprintf_symname_offs(const struct symbol *sym,
175 const struct addr_location *al, FILE *fp);
176 size_t __symbol__fprintf_symname(const struct symbol *sym,
177 const struct addr_location *al,
178 bool unknown_as_addr, FILE *fp);
179 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
180 size_t symbol__fprintf(struct symbol *sym, FILE *fp);
181 bool symbol__restricted_filename(const char *filename,
182 const char *restricted_filename);
183 int symbol__config_symfs(const struct option *opt __maybe_unused,
184 const char *dir, int unset __maybe_unused);
185
186 struct symsrc;
187
188 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
189 struct symsrc *runtime_ss, int kmodule);
190 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss);
191
192 char *dso__demangle_sym(struct dso *dso, int kmodule, const char *elf_name);
193
194 void __symbols__insert(struct rb_root_cached *symbols, struct symbol *sym,
195 bool kernel);
196 void symbols__insert(struct rb_root_cached *symbols, struct symbol *sym);
197 void symbols__fixup_duplicate(struct rb_root_cached *symbols);
198 void symbols__fixup_end(struct rb_root_cached *symbols);
199 void map_groups__fixup_end(struct map_groups *mg);
200
201 typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
202 int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
203 bool *is_64_bit);
204
205 #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
206
207 struct kcore_extract {
208 char *kcore_filename;
209 u64 addr;
210 u64 offs;
211 u64 len;
212 char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
213 int fd;
214 };
215
216 int kcore_extract__create(struct kcore_extract *kce);
217 void kcore_extract__delete(struct kcore_extract *kce);
218
219 int kcore_copy(const char *from_dir, const char *to_dir);
220 int compare_proc_modules(const char *from, const char *to);
221
222 int setup_list(struct strlist **list, const char *list_str,
223 const char *list_name);
224 int setup_intlist(struct intlist **list, const char *list_str,
225 const char *list_name);
226
227 #ifdef HAVE_LIBELF_SUPPORT
228 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
229 void arch__sym_update(struct symbol *s, GElf_Sym *sym);
230 #endif
231
232 const char *arch__normalize_symbol_name(const char *name);
233 #define SYMBOL_A 0
234 #define SYMBOL_B 1
235
236 void arch__symbols__fixup_end(struct symbol *p, struct symbol *c);
237 int arch__compare_symbol_names(const char *namea, const char *nameb);
238 int arch__compare_symbol_names_n(const char *namea, const char *nameb,
239 unsigned int n);
240 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb);
241
242 enum symbol_tag_include {
243 SYMBOL_TAG_INCLUDE__NONE = 0,
244 SYMBOL_TAG_INCLUDE__DEFAULT_ONLY
245 };
246
247 int symbol__match_symbol_name(const char *namea, const char *nameb,
248 enum symbol_tag_include includes);
249
250
251 struct sdt_note {
252 char *name;
253 char *provider;
254 char *args;
255 bool bit32;
256 union {
257 Elf64_Addr a64[3];
258 Elf32_Addr a32[3];
259 } addr;
260 struct list_head note_list;
261 };
262
263 int get_sdt_note_list(struct list_head *head, const char *target);
264 int cleanup_sdt_note_list(struct list_head *sdt_notes);
265 int sdt_notes__get_count(struct list_head *start);
266
267 #define SDT_PROBES_SCN ".probes"
268 #define SDT_BASE_SCN ".stapsdt.base"
269 #define SDT_NOTE_SCN ".note.stapsdt"
270 #define SDT_NOTE_TYPE 3
271 #define SDT_NOTE_NAME "stapsdt"
272 #define NR_ADDR 3
273
274 enum {
275 SDT_NOTE_IDX_LOC = 0,
276 SDT_NOTE_IDX_BASE,
277 SDT_NOTE_IDX_REFCTR,
278 };
279
280 struct mem_info *mem_info__new(void);
281 struct mem_info *mem_info__get(struct mem_info *mi);
282 void mem_info__put(struct mem_info *mi);
283
284 static inline void __mem_info__zput(struct mem_info **mi)
285 {
286 mem_info__put(*mi);
287 *mi = NULL;
288 }
289
290 #define mem_info__zput(mi) __mem_info__zput(&mi)
291
292 struct block_info *block_info__new(void);
293 struct block_info *block_info__get(struct block_info *bi);
294 void block_info__put(struct block_info *bi);
295
296 static inline void __block_info__zput(struct block_info **bi)
297 {
298 block_info__put(*bi);
299 *bi = NULL;
300 }
301
302 #define block_info__zput(bi) __block_info__zput(&bi)
303
304 #endif