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Commit | Line | Data |
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8b40f521 JK |
1 | #ifndef __PERF_SYMBOL |
2 | #define __PERF_SYMBOL 1 | |
a2928c42 ACM |
3 | |
4 | #include <linux/types.h> | |
e4204992 | 5 | #include <stdbool.h> |
5aab621b ACM |
6 | #include <stdint.h> |
7 | #include "map.h" | |
b5387528 | 8 | #include "../perf.h" |
5da50258 | 9 | #include <linux/list.h> |
43cbcd8a | 10 | #include <linux/rbtree.h> |
5aab621b | 11 | #include <stdio.h> |
8db4841f | 12 | #include <byteswap.h> |
b771a830 | 13 | #include <libgen.h> |
4383db88 | 14 | #include "build-id.h" |
0776eb59 | 15 | #include "event.h" |
972f393b | 16 | #include "util.h" |
a2928c42 | 17 | |
89fe808a | 18 | #ifdef HAVE_LIBELF_SUPPORT |
b68e2f91 CS |
19 | #include <libelf.h> |
20 | #include <gelf.h> | |
b68e2f91 | 21 | #endif |
eec185ab | 22 | #include <elf.h> |
b68e2f91 | 23 | |
cdd059d7 JO |
24 | #include "dso.h" |
25 | ||
84087126 MR |
26 | /* |
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: | |
29 | */ | |
89fe808a | 30 | #ifdef HAVE_LIBELF_MMAP_SUPPORT |
84087126 | 31 | # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP |
29a0fc9b NK |
32 | #else |
33 | # define PERF_ELF_C_READ_MMAP ELF_C_READ | |
84087126 MR |
34 | #endif |
35 | ||
99ca4233 MH |
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); | |
39 | #endif | |
40 | ||
247648e3 | 41 | #ifndef DMGL_PARAMS |
e71e7945 | 42 | #define DMGL_NO_OPTS 0 /* For readability... */ |
247648e3 ACM |
43 | #define DMGL_PARAMS (1 << 0) /* Include function args */ |
44 | #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ | |
45 | #endif | |
46 | ||
171b3be9 ACM |
47 | /** struct symbol - symtab entry |
48 | * | |
49 | * @ignore - resolvable but tools ignore it (e.g. idle routines) | |
50 | */ | |
a2928c42 ACM |
51 | struct symbol { |
52 | struct rb_node rb_node; | |
9cffa8d5 PM |
53 | u64 start; |
54 | u64 end; | |
fefb0b94 | 55 | u16 namelen; |
c408fedf | 56 | u8 binding; |
171b3be9 | 57 | bool ignore; |
a2928c42 ACM |
58 | char name[0]; |
59 | }; | |
60 | ||
aeafcbaf | 61 | void symbol__delete(struct symbol *sym); |
cdd059d7 | 62 | void symbols__delete(struct rb_root *symbols); |
628ada0c | 63 | |
eb948e50 MH |
64 | /* symbols__for_each_entry - iterate over symbols (rb_root) |
65 | * | |
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 | |
69 | */ | |
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)); \ | |
73 | nd = rb_next(nd)) | |
74 | ||
1b2e2df4 ACM |
75 | static inline size_t symbol__size(const struct symbol *sym) |
76 | { | |
2c241bd3 | 77 | return sym->end - sym->start; |
1b2e2df4 ACM |
78 | } |
79 | ||
655000e7 | 80 | struct strlist; |
e03eaa40 | 81 | struct intlist; |
655000e7 | 82 | |
b32d133a ACM |
83 | struct symbol_conf { |
84 | unsigned short priv_size; | |
d04b35f8 | 85 | unsigned short nr_events; |
b32d133a | 86 | bool try_vmlinux_path, |
fc2be696 | 87 | ignore_vmlinux, |
00dc8657 | 88 | ignore_vmlinux_buildid, |
0bc8d205 | 89 | show_kernel_path, |
79406cd7 | 90 | use_modules, |
680d926a | 91 | allow_aliases, |
d599db3f ACM |
92 | sort_by_name, |
93 | show_nr_samples, | |
3f2728bd | 94 | show_total_period, |
d599db3f | 95 | use_callchain, |
f8be1c8c | 96 | cumulate_callchain, |
f7d87444 | 97 | exclude_other, |
85e00b55 | 98 | show_cpu_utilization, |
ec80fde7 | 99 | initialized, |
3e6a2a7f SE |
100 | kptr_restrict, |
101 | annotate_asm_raw, | |
6e1f601a | 102 | annotate_src, |
328ccdac | 103 | event_group, |
f2148330 | 104 | demangle, |
763122ad | 105 | demangle_kernel, |
c8302367 | 106 | filter_relative, |
8b7bad58 | 107 | show_hist_headers, |
0bc2f2f7 | 108 | branch_callstack, |
9e207ddf KL |
109 | has_filter, |
110 | show_ref_callgraph; | |
c410a338 | 111 | const char *vmlinux_name, |
b226a5a7 | 112 | *kallsyms_name, |
9ed7e1b8 | 113 | *source_prefix, |
c410a338 | 114 | *field_sep; |
a1645ce1 ZY |
115 | const char *default_guest_vmlinux_name, |
116 | *default_guest_kallsyms, | |
117 | *default_guest_modules; | |
118 | const char *guestmount; | |
edb7c60e | 119 | const char *dso_list_str, |
655000e7 | 120 | *comm_list_str, |
e03eaa40 DA |
121 | *pid_list_str, |
122 | *tid_list_str, | |
655000e7 ACM |
123 | *sym_list_str, |
124 | *col_width_list_str; | |
125 | struct strlist *dso_list, | |
126 | *comm_list, | |
a68c2c58 SE |
127 | *sym_list, |
128 | *dso_from_list, | |
129 | *dso_to_list, | |
130 | *sym_from_list, | |
131 | *sym_to_list; | |
e03eaa40 DA |
132 | struct intlist *pid_list, |
133 | *tid_list; | |
ec5761ea | 134 | const char *symfs; |
b32d133a ACM |
135 | }; |
136 | ||
75be6cf4 | 137 | extern struct symbol_conf symbol_conf; |
972f393b ACM |
138 | |
139 | static inline int __symbol__join_symfs(char *bf, size_t size, const char *path) | |
140 | { | |
141 | return path__join(bf, size, symbol_conf.symfs, path); | |
142 | } | |
143 | ||
144 | #define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path) | |
145 | ||
3f067dca ACM |
146 | extern int vmlinux_path__nr_entries; |
147 | extern char **vmlinux_path; | |
00a192b3 | 148 | |
aeafcbaf | 149 | static inline void *symbol__priv(struct symbol *sym) |
00a192b3 | 150 | { |
aeafcbaf | 151 | return ((void *)sym) - symbol_conf.priv_size; |
00a192b3 ACM |
152 | } |
153 | ||
9de89fe7 ACM |
154 | struct ref_reloc_sym { |
155 | const char *name; | |
156 | u64 addr; | |
157 | u64 unrelocated_addr; | |
158 | }; | |
159 | ||
59fd5306 ACM |
160 | struct map_symbol { |
161 | struct map *map; | |
162 | struct symbol *sym; | |
163 | }; | |
164 | ||
b5387528 RAV |
165 | struct addr_map_symbol { |
166 | struct map *map; | |
167 | struct symbol *sym; | |
168 | u64 addr; | |
a68c2c58 | 169 | u64 al_addr; |
b5387528 RAV |
170 | }; |
171 | ||
172 | struct branch_info { | |
173 | struct addr_map_symbol from; | |
174 | struct addr_map_symbol to; | |
175 | struct branch_flags flags; | |
176 | }; | |
177 | ||
98a3b32c SE |
178 | struct mem_info { |
179 | struct addr_map_symbol iaddr; | |
180 | struct addr_map_symbol daddr; | |
181 | union perf_mem_data_src data_src; | |
182 | }; | |
183 | ||
1ed091c4 | 184 | struct addr_location { |
cc22e575 | 185 | struct machine *machine; |
1ed091c4 ACM |
186 | struct thread *thread; |
187 | struct map *map; | |
188 | struct symbol *sym; | |
189 | u64 addr; | |
190 | char level; | |
b3cef7f6 | 191 | u8 filtered; |
f60f3593 AS |
192 | u8 cpumode; |
193 | s32 cpu; | |
a1645ce1 ZY |
194 | }; |
195 | ||
b68e2f91 CS |
196 | struct symsrc { |
197 | char *name; | |
198 | int fd; | |
199 | enum dso_binary_type type; | |
200 | ||
89fe808a | 201 | #ifdef HAVE_LIBELF_SUPPORT |
b68e2f91 CS |
202 | Elf *elf; |
203 | GElf_Ehdr ehdr; | |
204 | ||
205 | Elf_Scn *opdsec; | |
206 | size_t opdidx; | |
207 | GElf_Shdr opdshdr; | |
208 | ||
209 | Elf_Scn *symtab; | |
210 | GElf_Shdr symshdr; | |
211 | ||
212 | Elf_Scn *dynsym; | |
213 | size_t dynsym_idx; | |
214 | GElf_Shdr dynshdr; | |
215 | ||
216 | bool adjust_symbols; | |
c6d8f2a4 | 217 | bool is_64_bit; |
b68e2f91 CS |
218 | #endif |
219 | }; | |
220 | ||
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); | |
d26cd12b | 224 | bool symsrc__has_symtab(struct symsrc *ss); |
3aafe5ae | 225 | bool symsrc__possibly_runtime(struct symsrc *ss); |
b68e2f91 | 226 | |
aeafcbaf ACM |
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, | |
5230fb7d ACM |
229 | const char *vmlinux, bool vmlinux_allocated, |
230 | symbol_filter_t filter); | |
aeafcbaf | 231 | int dso__load_vmlinux_path(struct dso *dso, struct map *map, |
9de89fe7 | 232 | symbol_filter_t filter); |
aeafcbaf | 233 | int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, |
9de89fe7 | 234 | symbol_filter_t filter); |
cdd059d7 | 235 | |
aeafcbaf ACM |
236 | struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, |
237 | u64 addr); | |
238 | struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, | |
79406cd7 | 239 | const char *name); |
18bd7264 | 240 | struct symbol *symbol__next_by_name(struct symbol *sym); |
a2928c42 | 241 | |
9c00a81b AH |
242 | struct symbol *dso__first_symbol(struct dso *dso, enum map_type type); |
243 | struct symbol *dso__next_symbol(struct symbol *sym); | |
244 | ||
2b5b8bb2 AH |
245 | enum dso_type dso__type_fd(int fd); |
246 | ||
2643ce11 | 247 | int filename__read_build_id(const char *filename, void *bf, size_t size); |
f1617b40 | 248 | int sysfs__read_build_id(const char *filename, void *bf, size_t size); |
316d70d6 AH |
249 | int modules__parse(const char *filename, void *arg, |
250 | int (*process_module)(void *arg, const char *name, | |
251 | u64 start)); | |
e5a1845f NK |
252 | int filename__read_debuglink(const char *filename, char *debuglink, |
253 | size_t size); | |
2643ce11 | 254 | |
ce80d3be KL |
255 | struct perf_env; |
256 | int symbol__init(struct perf_env *env); | |
d65a458b | 257 | void symbol__exit(void); |
166ccc9c | 258 | void symbol__elf_init(void); |
e5a1845f | 259 | struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name); |
a978f2ab AN |
260 | size_t symbol__fprintf_symname_offs(const struct symbol *sym, |
261 | const struct addr_location *al, FILE *fp); | |
547a92e0 | 262 | size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp); |
cdd059d7 | 263 | size_t symbol__fprintf(struct symbol *sym, FILE *fp); |
36a3e646 | 264 | bool symbol_type__is_a(char symbol_type, enum map_type map_type); |
3f067dca ACM |
265 | bool symbol__restricted_filename(const char *filename, |
266 | const char *restricted_filename); | |
82d1deb0 | 267 | bool symbol__is_idle(struct symbol *sym); |
36a3e646 | 268 | |
261360b6 CS |
269 | int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss, |
270 | struct symsrc *runtime_ss, symbol_filter_t filter, | |
271 | int kmodule); | |
a44f605b CS |
272 | int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, |
273 | struct map *map, symbol_filter_t filter); | |
e5a1845f NK |
274 | |
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); | |
279 | ||
8e0cf965 AH |
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, | |
282 | bool *is_64_bit); | |
283 | ||
afba19d9 AH |
284 | #define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX" |
285 | ||
286 | struct kcore_extract { | |
287 | char *kcore_filename; | |
288 | u64 addr; | |
289 | u64 offs; | |
290 | u64 len; | |
291 | char extract_filename[sizeof(PERF_KCORE_EXTRACT)]; | |
292 | int fd; | |
293 | }; | |
294 | ||
295 | int kcore_extract__create(struct kcore_extract *kce); | |
296 | void kcore_extract__delete(struct kcore_extract *kce); | |
297 | ||
fc1b691d AH |
298 | int kcore_copy(const char *from_dir, const char *to_dir); |
299 | int compare_proc_modules(const char *from, const char *to); | |
300 | ||
3bfe5f81 DA |
301 | int setup_list(struct strlist **list, const char *list_str, |
302 | const char *list_name); | |
e03eaa40 DA |
303 | int setup_intlist(struct intlist **list, const char *list_str, |
304 | const char *list_name); | |
3bfe5f81 | 305 | |
d2332098 NR |
306 | #ifdef HAVE_LIBELF_SUPPORT |
307 | bool elf__needs_adjust_symbols(GElf_Ehdr ehdr); | |
c50fc0a4 | 308 | void arch__elf_sym_adjust(GElf_Sym *sym); |
d2332098 NR |
309 | #endif |
310 | ||
fb6d5942 NR |
311 | #define SYMBOL_A 0 |
312 | #define SYMBOL_B 1 | |
313 | ||
314 | int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb); | |
315 | ||
8b40f521 | 316 | #endif /* __PERF_SYMBOL */ |