1#ifndef __PERF_SYMBOL
2#define __PERF_SYMBOL 1
3
4#include <linux/types.h>
5#include <stdbool.h>
6#include <stdint.h>
7#include "map.h"
8#include "../perf.h"
9#include <linux/list.h>
10#include <linux/rbtree.h>
11#include <stdio.h>
12#include <byteswap.h>
13#include <libgen.h>
14
15#ifdef LIBELF_SUPPORT
16#include <libelf.h>
17#include <gelf.h>
18#include <elf.h>
19#endif
20
21#ifdef HAVE_CPLUS_DEMANGLE
22extern char *cplus_demangle(const char *, int);
23
24static inline char *bfd_demangle(void __maybe_unused *v, const char *c, int i)
25{
26 return cplus_demangle(c, i);
27}
28#else
29#ifdef NO_DEMANGLE
30static inline char *bfd_demangle(void __maybe_unused *v,
31 const char __maybe_unused *c,
32 int __maybe_unused i)
33{
34 return NULL;
35}
36#else
37#define PACKAGE 'perf'
38#include <bfd.h>
39#endif
40#endif
41
42int hex2u64(const char *ptr, u64 *val);
43char *strxfrchar(char *s, char from, char to);
44
45
46
47
48
49#ifdef LIBELF_MMAP
50# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
51#else
52# define PERF_ELF_C_READ_MMAP ELF_C_READ
53#endif
54
55#ifndef DMGL_PARAMS
56#define DMGL_PARAMS (1 << 0)
57#define DMGL_ANSI (1 << 1)
58#endif
59
60#define BUILD_ID_SIZE 20
61
62
63
64
65
66struct symbol {
67 struct rb_node rb_node;
68 u64 start;
69 u64 end;
70 u16 namelen;
71 u8 binding;
72 bool ignore;
73 char name[0];
74};
75
76void symbol__delete(struct symbol *sym);
77
78static inline size_t symbol__size(const struct symbol *sym)
79{
80 return sym->end - sym->start + 1;
81}
82
83struct strlist;
84
85struct symbol_conf {
86 unsigned short priv_size;
87 unsigned short nr_events;
88 bool try_vmlinux_path,
89 show_kernel_path,
90 use_modules,
91 sort_by_name,
92 show_nr_samples,
93 show_total_period,
94 use_callchain,
95 exclude_other,
96 show_cpu_utilization,
97 initialized,
98 kptr_restrict,
99 annotate_asm_raw,
100 annotate_src;
101 const char *vmlinux_name,
102 *kallsyms_name,
103 *source_prefix,
104 *field_sep;
105 const char *default_guest_vmlinux_name,
106 *default_guest_kallsyms,
107 *default_guest_modules;
108 const char *guestmount;
109 const char *dso_list_str,
110 *comm_list_str,
111 *sym_list_str,
112 *col_width_list_str;
113 struct strlist *dso_list,
114 *comm_list,
115 *sym_list,
116 *dso_from_list,
117 *dso_to_list,
118 *sym_from_list,
119 *sym_to_list;
120 const char *symfs;
121};
122
123extern struct symbol_conf symbol_conf;
124
125static inline void *symbol__priv(struct symbol *sym)
126{
127 return ((void *)sym) - symbol_conf.priv_size;
128}
129
130struct ref_reloc_sym {
131 const char *name;
132 u64 addr;
133 u64 unrelocated_addr;
134};
135
136struct map_symbol {
137 struct map *map;
138 struct symbol *sym;
139 bool unfolded;
140 bool has_children;
141};
142
143struct addr_map_symbol {
144 struct map *map;
145 struct symbol *sym;
146 u64 addr;
147 u64 al_addr;
148};
149
150struct branch_info {
151 struct addr_map_symbol from;
152 struct addr_map_symbol to;
153 struct branch_flags flags;
154};
155
156struct addr_location {
157 struct thread *thread;
158 struct map *map;
159 struct symbol *sym;
160 u64 addr;
161 char level;
162 bool filtered;
163 u8 cpumode;
164 s32 cpu;
165};
166
167enum dso_binary_type {
168 DSO_BINARY_TYPE__KALLSYMS = 0,
169 DSO_BINARY_TYPE__GUEST_KALLSYMS,
170 DSO_BINARY_TYPE__VMLINUX,
171 DSO_BINARY_TYPE__GUEST_VMLINUX,
172 DSO_BINARY_TYPE__JAVA_JIT,
173 DSO_BINARY_TYPE__DEBUGLINK,
174 DSO_BINARY_TYPE__BUILD_ID_CACHE,
175 DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
176 DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
177 DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
178 DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
179 DSO_BINARY_TYPE__GUEST_KMODULE,
180 DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
181 DSO_BINARY_TYPE__NOT_FOUND,
182};
183
184enum dso_kernel_type {
185 DSO_TYPE_USER = 0,
186 DSO_TYPE_KERNEL,
187 DSO_TYPE_GUEST_KERNEL
188};
189
190enum dso_swap_type {
191 DSO_SWAP__UNSET,
192 DSO_SWAP__NO,
193 DSO_SWAP__YES,
194};
195
196#define DSO__DATA_CACHE_SIZE 4096
197#define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
198
199struct dso_cache {
200 struct rb_node rb_node;
201 u64 offset;
202 u64 size;
203 char data[0];
204};
205
206struct dso {
207 struct list_head node;
208 struct rb_root symbols[MAP__NR_TYPES];
209 struct rb_root symbol_names[MAP__NR_TYPES];
210 struct rb_root cache;
211 enum dso_kernel_type kernel;
212 enum dso_swap_type needs_swap;
213 enum dso_binary_type symtab_type;
214 enum dso_binary_type data_type;
215 u8 adjust_symbols:1;
216 u8 has_build_id:1;
217 u8 hit:1;
218 u8 annotate_warned:1;
219 u8 sname_alloc:1;
220 u8 lname_alloc:1;
221 u8 sorted_by_name;
222 u8 loaded;
223 u8 build_id[BUILD_ID_SIZE];
224 const char *short_name;
225 char *long_name;
226 u16 long_name_len;
227 u16 short_name_len;
228 char name[0];
229};
230
231struct symsrc {
232 char *name;
233 int fd;
234 enum dso_binary_type type;
235
236#ifdef LIBELF_SUPPORT
237 Elf *elf;
238 GElf_Ehdr ehdr;
239
240 Elf_Scn *opdsec;
241 size_t opdidx;
242 GElf_Shdr opdshdr;
243
244 Elf_Scn *symtab;
245 GElf_Shdr symshdr;
246
247 Elf_Scn *dynsym;
248 size_t dynsym_idx;
249 GElf_Shdr dynshdr;
250
251 bool adjust_symbols;
252#endif
253};
254
255void symsrc__destroy(struct symsrc *ss);
256int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
257 enum dso_binary_type type);
258bool symsrc__has_symtab(struct symsrc *ss);
259bool symsrc__possibly_runtime(struct symsrc *ss);
260
261#define DSO__SWAP(dso, type, val) \
262({ \
263 type ____r = val; \
264 BUG_ON(dso->needs_swap == DSO_SWAP__UNSET); \
265 if (dso->needs_swap == DSO_SWAP__YES) { \
266 switch (sizeof(____r)) { \
267 case 2: \
268 ____r = bswap_16(val); \
269 break; \
270 case 4: \
271 ____r = bswap_32(val); \
272 break; \
273 case 8: \
274 ____r = bswap_64(val); \
275 break; \
276 default: \
277 BUG_ON(1); \
278 } \
279 } \
280 ____r; \
281})
282
283struct dso *dso__new(const char *name);
284void dso__delete(struct dso *dso);
285
286int dso__name_len(const struct dso *dso);
287
288bool dso__loaded(const struct dso *dso, enum map_type type);
289bool dso__sorted_by_name(const struct dso *dso, enum map_type type);
290
291static inline void dso__set_loaded(struct dso *dso, enum map_type type)
292{
293 dso->loaded |= (1 << type);
294}
295
296void dso__sort_by_name(struct dso *dso, enum map_type type);
297
298void dsos__add(struct list_head *head, struct dso *dso);
299struct dso *dsos__find(struct list_head *head, const char *name);
300struct dso *__dsos__findnew(struct list_head *head, const char *name);
301
302int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
303int dso__load_vmlinux(struct dso *dso, struct map *map,
304 const char *vmlinux, symbol_filter_t filter);
305int dso__load_vmlinux_path(struct dso *dso, struct map *map,
306 symbol_filter_t filter);
307int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
308 symbol_filter_t filter);
309int machine__load_kallsyms(struct machine *machine, const char *filename,
310 enum map_type type, symbol_filter_t filter);
311int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
312 symbol_filter_t filter);
313
314size_t __dsos__fprintf(struct list_head *head, FILE *fp);
315
316size_t machine__fprintf_dsos_buildid(struct machine *machine,
317 FILE *fp, bool with_hits);
318size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp);
319size_t machines__fprintf_dsos_buildid(struct rb_root *machines,
320 FILE *fp, bool with_hits);
321size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
322size_t dso__fprintf_symbols_by_name(struct dso *dso,
323 enum map_type type, FILE *fp);
324size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
325
326char dso__symtab_origin(const struct dso *dso);
327void dso__set_long_name(struct dso *dso, char *name);
328void dso__set_build_id(struct dso *dso, void *build_id);
329bool dso__build_id_equal(const struct dso *dso, u8 *build_id);
330void dso__read_running_kernel_build_id(struct dso *dso,
331 struct machine *machine);
332struct map *dso__new_map(const char *name);
333struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
334 u64 addr);
335struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
336 const char *name);
337
338int filename__read_build_id(const char *filename, void *bf, size_t size);
339int sysfs__read_build_id(const char *filename, void *bf, size_t size);
340bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
341int build_id__sprintf(const u8 *build_id, int len, char *bf);
342int kallsyms__parse(const char *filename, void *arg,
343 int (*process_symbol)(void *arg, const char *name,
344 char type, u64 start));
345int filename__read_debuglink(const char *filename, char *debuglink,
346 size_t size);
347
348void machine__destroy_kernel_maps(struct machine *machine);
349int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
350int machine__create_kernel_maps(struct machine *machine);
351
352int machines__create_kernel_maps(struct rb_root *machines, pid_t pid);
353int machines__create_guest_kernel_maps(struct rb_root *machines);
354void machines__destroy_guest_kernel_maps(struct rb_root *machines);
355
356int symbol__init(void);
357void symbol__exit(void);
358void symbol__elf_init(void);
359struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
360size_t symbol__fprintf_symname_offs(const struct symbol *sym,
361 const struct addr_location *al, FILE *fp);
362size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
363bool symbol_type__is_a(char symbol_type, enum map_type map_type);
364
365size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
366
367int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
368 char *root_dir, char *file, size_t size);
369
370int dso__data_fd(struct dso *dso, struct machine *machine);
371ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
372 u64 offset, u8 *data, ssize_t size);
373ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
374 struct machine *machine, u64 addr,
375 u8 *data, ssize_t size);
376int dso__test_data(void);
377int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
378 struct symsrc *runtime_ss, symbol_filter_t filter,
379 int kmodule);
380int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
381 struct map *map, symbol_filter_t filter);
382
383void symbols__insert(struct rb_root *symbols, struct symbol *sym);
384void symbols__fixup_duplicate(struct rb_root *symbols);
385void symbols__fixup_end(struct rb_root *symbols);
386void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
387
388#endif
389
