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#include "build-id.h"
15
16#ifdef LIBELF_SUPPORT
17#include <libelf.h>
18#include <gelf.h>
19#endif
20#include <elf.h>
21
22#include "dso.h"
23
24#ifdef HAVE_CPLUS_DEMANGLE
25extern char *cplus_demangle(const char *, int);
26
27static inline char *bfd_demangle(void __maybe_unused *v, const char *c, int i)
28{
29 return cplus_demangle(c, i);
30}
31#else
32#ifdef NO_DEMANGLE
33static inline char *bfd_demangle(void __maybe_unused *v,
34 const char __maybe_unused *c,
35 int __maybe_unused i)
36{
37 return NULL;
38}
39#else
40#define PACKAGE 'perf'
41#include <bfd.h>
42#endif
43#endif
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
61
62
63
64struct symbol {
65 struct rb_node rb_node;
66 u64 start;
67 u64 end;
68 u16 namelen;
69 u8 binding;
70 bool ignore;
71 char name[0];
72};
73
74void symbol__delete(struct symbol *sym);
75void symbols__delete(struct rb_root *symbols);
76
77static inline size_t symbol__size(const struct symbol *sym)
78{
79 return sym->end - sym->start + 1;
80}
81
82struct strlist;
83
84struct symbol_conf {
85 unsigned short priv_size;
86 unsigned short nr_events;
87 bool try_vmlinux_path,
88 show_kernel_path,
89 use_modules,
90 sort_by_name,
91 show_nr_samples,
92 show_total_period,
93 use_callchain,
94 exclude_other,
95 show_cpu_utilization,
96 initialized,
97 kptr_restrict,
98 annotate_asm_raw,
99 annotate_src,
100 event_group,
101 demangle;
102 const char *vmlinux_name,
103 *kallsyms_name,
104 *source_prefix,
105 *field_sep;
106 const char *default_guest_vmlinux_name,
107 *default_guest_kallsyms,
108 *default_guest_modules;
109 const char *guestmount;
110 const char *dso_list_str,
111 *comm_list_str,
112 *sym_list_str,
113 *col_width_list_str;
114 struct strlist *dso_list,
115 *comm_list,
116 *sym_list,
117 *dso_from_list,
118 *dso_to_list,
119 *sym_from_list,
120 *sym_to_list;
121 const char *symfs;
122};
123
124extern struct symbol_conf symbol_conf;
125extern int vmlinux_path__nr_entries;
126extern char **vmlinux_path;
127
128static inline void *symbol__priv(struct symbol *sym)
129{
130 return ((void *)sym) - symbol_conf.priv_size;
131}
132
133struct ref_reloc_sym {
134 const char *name;
135 u64 addr;
136 u64 unrelocated_addr;
137};
138
139struct map_symbol {
140 struct map *map;
141 struct symbol *sym;
142 bool unfolded;
143 bool has_children;
144};
145
146struct addr_map_symbol {
147 struct map *map;
148 struct symbol *sym;
149 u64 addr;
150 u64 al_addr;
151};
152
153struct branch_info {
154 struct addr_map_symbol from;
155 struct addr_map_symbol to;
156 struct branch_flags flags;
157};
158
159struct mem_info {
160 struct addr_map_symbol iaddr;
161 struct addr_map_symbol daddr;
162 union perf_mem_data_src data_src;
163};
164
165struct addr_location {
166 struct thread *thread;
167 struct map *map;
168 struct symbol *sym;
169 u64 addr;
170 char level;
171 bool filtered;
172 u8 cpumode;
173 s32 cpu;
174};
175
176struct symsrc {
177 char *name;
178 int fd;
179 enum dso_binary_type type;
180
181#ifdef LIBELF_SUPPORT
182 Elf *elf;
183 GElf_Ehdr ehdr;
184
185 Elf_Scn *opdsec;
186 size_t opdidx;
187 GElf_Shdr opdshdr;
188
189 Elf_Scn *symtab;
190 GElf_Shdr symshdr;
191
192 Elf_Scn *dynsym;
193 size_t dynsym_idx;
194 GElf_Shdr dynshdr;
195
196 bool adjust_symbols;
197#endif
198};
199
200void symsrc__destroy(struct symsrc *ss);
201int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
202 enum dso_binary_type type);
203bool symsrc__has_symtab(struct symsrc *ss);
204bool symsrc__possibly_runtime(struct symsrc *ss);
205
206int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
207int dso__load_vmlinux(struct dso *dso, struct map *map,
208 const char *vmlinux, symbol_filter_t filter);
209int dso__load_vmlinux_path(struct dso *dso, struct map *map,
210 symbol_filter_t filter);
211int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
212 symbol_filter_t filter);
213
214struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
215 u64 addr);
216struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
217 const char *name);
218
219int filename__read_build_id(const char *filename, void *bf, size_t size);
220int sysfs__read_build_id(const char *filename, void *bf, size_t size);
221int kallsyms__parse(const char *filename, void *arg,
222 int (*process_symbol)(void *arg, const char *name,
223 char type, u64 start));
224int filename__read_debuglink(const char *filename, char *debuglink,
225 size_t size);
226
227int symbol__init(void);
228void symbol__exit(void);
229void symbol__elf_init(void);
230struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
231size_t symbol__fprintf_symname_offs(const struct symbol *sym,
232 const struct addr_location *al, FILE *fp);
233size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
234size_t symbol__fprintf(struct symbol *sym, FILE *fp);
235bool symbol_type__is_a(char symbol_type, enum map_type map_type);
236bool symbol__restricted_filename(const char *filename,
237 const char *restricted_filename);
238
239int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
240 struct symsrc *runtime_ss, symbol_filter_t filter,
241 int kmodule);
242int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
243 struct map *map, symbol_filter_t filter);
244
245void symbols__insert(struct rb_root *symbols, struct symbol *sym);
246void symbols__fixup_duplicate(struct rb_root *symbols);
247void symbols__fixup_end(struct rb_root *symbols);
248void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
249
250#endif
251
