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" |
a2928c42 | 16 | |
89fe808a | 17 | #ifdef HAVE_LIBELF_SUPPORT |
b68e2f91 CS |
18 | #include <libelf.h> |
19 | #include <gelf.h> | |
b68e2f91 | 20 | #endif |
eec185ab | 21 | #include <elf.h> |
b68e2f91 | 22 | |
cdd059d7 JO |
23 | #include "dso.h" |
24 | ||
89fe808a | 25 | #ifdef HAVE_CPLUS_DEMANGLE_SUPPORT |
247648e3 ACM |
26 | extern char *cplus_demangle(const char *, int); |
27 | ||
1d037ca1 | 28 | static inline char *bfd_demangle(void __maybe_unused *v, const char *c, int i) |
247648e3 ACM |
29 | { |
30 | return cplus_demangle(c, i); | |
31 | } | |
32 | #else | |
33 | #ifdef NO_DEMANGLE | |
1d037ca1 IT |
34 | static inline char *bfd_demangle(void __maybe_unused *v, |
35 | const char __maybe_unused *c, | |
36 | int __maybe_unused i) | |
247648e3 ACM |
37 | { |
38 | return NULL; | |
39 | } | |
40 | #else | |
3ce711a6 | 41 | #define PACKAGE 'perf' |
247648e3 ACM |
42 | #include <bfd.h> |
43 | #endif | |
44 | #endif | |
45 | ||
84087126 MR |
46 | /* |
47 | * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP; | |
48 | * for newer versions we can use mmap to reduce memory usage: | |
49 | */ | |
89fe808a | 50 | #ifdef HAVE_LIBELF_MMAP_SUPPORT |
84087126 | 51 | # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP |
29a0fc9b NK |
52 | #else |
53 | # define PERF_ELF_C_READ_MMAP ELF_C_READ | |
84087126 MR |
54 | #endif |
55 | ||
99ca4233 MH |
56 | #ifdef HAVE_LIBELF_SUPPORT |
57 | extern Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, | |
58 | GElf_Shdr *shp, const char *name, size_t *idx); | |
59 | #endif | |
60 | ||
247648e3 ACM |
61 | #ifndef DMGL_PARAMS |
62 | #define DMGL_PARAMS (1 << 0) /* Include function args */ | |
63 | #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ | |
64 | #endif | |
65 | ||
171b3be9 ACM |
66 | /** struct symbol - symtab entry |
67 | * | |
68 | * @ignore - resolvable but tools ignore it (e.g. idle routines) | |
69 | */ | |
a2928c42 ACM |
70 | struct symbol { |
71 | struct rb_node rb_node; | |
9cffa8d5 PM |
72 | u64 start; |
73 | u64 end; | |
fefb0b94 | 74 | u16 namelen; |
c408fedf | 75 | u8 binding; |
171b3be9 | 76 | bool ignore; |
a2928c42 ACM |
77 | char name[0]; |
78 | }; | |
79 | ||
aeafcbaf | 80 | void symbol__delete(struct symbol *sym); |
cdd059d7 | 81 | void symbols__delete(struct rb_root *symbols); |
628ada0c | 82 | |
eb948e50 MH |
83 | /* symbols__for_each_entry - iterate over symbols (rb_root) |
84 | * | |
85 | * @symbols: the rb_root of symbols | |
86 | * @pos: the 'struct symbol *' to use as a loop cursor | |
87 | * @nd: the 'struct rb_node *' to use as a temporary storage | |
88 | */ | |
89 | #define symbols__for_each_entry(symbols, pos, nd) \ | |
90 | for (nd = rb_first(symbols); \ | |
91 | nd && (pos = rb_entry(nd, struct symbol, rb_node)); \ | |
92 | nd = rb_next(nd)) | |
93 | ||
1b2e2df4 ACM |
94 | static inline size_t symbol__size(const struct symbol *sym) |
95 | { | |
96 | return sym->end - sym->start + 1; | |
97 | } | |
98 | ||
655000e7 ACM |
99 | struct strlist; |
100 | ||
b32d133a ACM |
101 | struct symbol_conf { |
102 | unsigned short priv_size; | |
d04b35f8 | 103 | unsigned short nr_events; |
b32d133a | 104 | bool try_vmlinux_path, |
fc2be696 | 105 | ignore_vmlinux, |
0bc8d205 | 106 | show_kernel_path, |
79406cd7 | 107 | use_modules, |
d599db3f ACM |
108 | sort_by_name, |
109 | show_nr_samples, | |
3f2728bd | 110 | show_total_period, |
d599db3f | 111 | use_callchain, |
f8be1c8c | 112 | cumulate_callchain, |
f7d87444 | 113 | exclude_other, |
85e00b55 | 114 | show_cpu_utilization, |
ec80fde7 | 115 | initialized, |
3e6a2a7f SE |
116 | kptr_restrict, |
117 | annotate_asm_raw, | |
6e1f601a | 118 | annotate_src, |
328ccdac | 119 | event_group, |
f2148330 | 120 | demangle, |
c8302367 JO |
121 | filter_relative, |
122 | show_hist_headers; | |
c410a338 | 123 | const char *vmlinux_name, |
b226a5a7 | 124 | *kallsyms_name, |
9ed7e1b8 | 125 | *source_prefix, |
c410a338 | 126 | *field_sep; |
a1645ce1 ZY |
127 | const char *default_guest_vmlinux_name, |
128 | *default_guest_kallsyms, | |
129 | *default_guest_modules; | |
130 | const char *guestmount; | |
edb7c60e | 131 | const char *dso_list_str, |
655000e7 ACM |
132 | *comm_list_str, |
133 | *sym_list_str, | |
134 | *col_width_list_str; | |
135 | struct strlist *dso_list, | |
136 | *comm_list, | |
a68c2c58 SE |
137 | *sym_list, |
138 | *dso_from_list, | |
139 | *dso_to_list, | |
140 | *sym_from_list, | |
141 | *sym_to_list; | |
ec5761ea | 142 | const char *symfs; |
b32d133a ACM |
143 | }; |
144 | ||
75be6cf4 | 145 | extern struct symbol_conf symbol_conf; |
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; | |
0f0cbf7a ACM |
163 | bool unfolded; |
164 | bool has_children; | |
59fd5306 ACM |
165 | }; |
166 | ||
b5387528 RAV |
167 | struct addr_map_symbol { |
168 | struct map *map; | |
169 | struct symbol *sym; | |
170 | u64 addr; | |
a68c2c58 | 171 | u64 al_addr; |
b5387528 RAV |
172 | }; |
173 | ||
174 | struct branch_info { | |
175 | struct addr_map_symbol from; | |
176 | struct addr_map_symbol to; | |
177 | struct branch_flags flags; | |
178 | }; | |
179 | ||
98a3b32c SE |
180 | struct mem_info { |
181 | struct addr_map_symbol iaddr; | |
182 | struct addr_map_symbol daddr; | |
183 | union perf_mem_data_src data_src; | |
184 | }; | |
185 | ||
1ed091c4 | 186 | struct addr_location { |
cc22e575 | 187 | struct machine *machine; |
1ed091c4 ACM |
188 | struct thread *thread; |
189 | struct map *map; | |
190 | struct symbol *sym; | |
191 | u64 addr; | |
192 | char level; | |
b3cef7f6 | 193 | u8 filtered; |
f60f3593 AS |
194 | u8 cpumode; |
195 | s32 cpu; | |
a1645ce1 ZY |
196 | }; |
197 | ||
b68e2f91 CS |
198 | struct symsrc { |
199 | char *name; | |
200 | int fd; | |
201 | enum dso_binary_type type; | |
202 | ||
89fe808a | 203 | #ifdef HAVE_LIBELF_SUPPORT |
b68e2f91 CS |
204 | Elf *elf; |
205 | GElf_Ehdr ehdr; | |
206 | ||
207 | Elf_Scn *opdsec; | |
208 | size_t opdidx; | |
209 | GElf_Shdr opdshdr; | |
210 | ||
211 | Elf_Scn *symtab; | |
212 | GElf_Shdr symshdr; | |
213 | ||
214 | Elf_Scn *dynsym; | |
215 | size_t dynsym_idx; | |
216 | GElf_Shdr dynshdr; | |
217 | ||
218 | bool adjust_symbols; | |
c6d8f2a4 | 219 | bool is_64_bit; |
b68e2f91 CS |
220 | #endif |
221 | }; | |
222 | ||
223 | void symsrc__destroy(struct symsrc *ss); | |
224 | int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name, | |
225 | enum dso_binary_type type); | |
d26cd12b | 226 | bool symsrc__has_symtab(struct symsrc *ss); |
3aafe5ae | 227 | bool symsrc__possibly_runtime(struct symsrc *ss); |
b68e2f91 | 228 | |
aeafcbaf ACM |
229 | int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter); |
230 | int dso__load_vmlinux(struct dso *dso, struct map *map, | |
5230fb7d ACM |
231 | const char *vmlinux, bool vmlinux_allocated, |
232 | symbol_filter_t filter); | |
aeafcbaf | 233 | int dso__load_vmlinux_path(struct dso *dso, struct map *map, |
9de89fe7 | 234 | symbol_filter_t filter); |
aeafcbaf | 235 | int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, |
9de89fe7 | 236 | symbol_filter_t filter); |
cdd059d7 | 237 | |
aeafcbaf ACM |
238 | struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, |
239 | u64 addr); | |
240 | struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, | |
79406cd7 | 241 | const char *name); |
a2928c42 | 242 | |
9c00a81b AH |
243 | struct symbol *dso__first_symbol(struct dso *dso, enum map_type type); |
244 | struct symbol *dso__next_symbol(struct symbol *sym); | |
245 | ||
2b5b8bb2 AH |
246 | enum dso_type dso__type_fd(int fd); |
247 | ||
2643ce11 | 248 | int filename__read_build_id(const char *filename, void *bf, size_t size); |
f1617b40 | 249 | int sysfs__read_build_id(const char *filename, void *bf, size_t size); |
316d70d6 AH |
250 | int modules__parse(const char *filename, void *arg, |
251 | int (*process_module)(void *arg, const char *name, | |
252 | u64 start)); | |
e5a1845f NK |
253 | int filename__read_debuglink(const char *filename, char *debuglink, |
254 | size_t size); | |
2643ce11 | 255 | |
75be6cf4 | 256 | int symbol__init(void); |
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); | |
303 | ||
8b40f521 | 304 | #endif /* __PERF_SYMBOL */ |