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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 <linux/list.h>
9#include <linux/rbtree.h>
10#include <stdio.h>
11
12#ifdef HAVE_CPLUS_DEMANGLE
13extern char *cplus_demangle(const char *, int);
14
15static inline char *bfd_demangle(void __used *v, const char *c, int i)
16{
17 return cplus_demangle(c, i);
18}
19#else
20#ifdef NO_DEMANGLE
21static inline char *bfd_demangle(void __used *v, const char __used *c,
22 int __used i)
23{
24 return NULL;
25}
26#else
27#include <bfd.h>
28#endif
29#endif
30
31int hex2u64(const char *ptr, u64 *val);
32char *strxfrchar(char *s, char from, char to);
33
34/*
35 * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
36 * for newer versions we can use mmap to reduce memory usage:
37 */
38#ifdef LIBELF_NO_MMAP
39# define PERF_ELF_C_READ_MMAP ELF_C_READ
40#else
41# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
42#endif
43
44#ifndef DMGL_PARAMS
45#define DMGL_PARAMS (1 << 0) /* Include function args */
46#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
47#endif
48
49#define BUILD_ID_SIZE 20
50
51/** struct symbol - symtab entry
52 *
53 * @ignore - resolvable but tools ignore it (e.g. idle routines)
54 */
55struct symbol {
56 struct rb_node rb_node;
57 u64 start;
58 u64 end;
59 u16 namelen;
60 u8 binding;
61 bool ignore;
62 char name[0];
63};
64
65void symbol__delete(struct symbol *sym);
66
67struct strlist;
68
69struct symbol_conf {
70 unsigned short priv_size;
71 bool try_vmlinux_path,
72 use_modules,
73 sort_by_name,
74 show_nr_samples,
75 use_callchain,
76 exclude_other,
77 show_cpu_utilization,
78 initialized,
79 kptr_restrict;
80 const char *vmlinux_name,
81 *kallsyms_name,
82 *source_prefix,
83 *field_sep;
84 const char *default_guest_vmlinux_name,
85 *default_guest_kallsyms,
86 *default_guest_modules;
87 const char *guestmount;
88 const char *dso_list_str,
89 *comm_list_str,
90 *sym_list_str,
91 *col_width_list_str;
92 struct strlist *dso_list,
93 *comm_list,
94 *sym_list;
95 const char *symfs;
96};
97
98extern struct symbol_conf symbol_conf;
99
100static inline void *symbol__priv(struct symbol *sym)
101{
102 return ((void *)sym) - symbol_conf.priv_size;
103}
104
105struct ref_reloc_sym {
106 const char *name;
107 u64 addr;
108 u64 unrelocated_addr;
109};
110
111struct map_symbol {
112 struct map *map;
113 struct symbol *sym;
114 bool unfolded;
115 bool has_children;
116};
117
118struct addr_location {
119 struct thread *thread;
120 struct map *map;
121 struct symbol *sym;
122 u64 addr;
123 char level;
124 bool filtered;
125 u8 cpumode;
126 s32 cpu;
127};
128
129enum dso_kernel_type {
130 DSO_TYPE_USER = 0,
131 DSO_TYPE_KERNEL,
132 DSO_TYPE_GUEST_KERNEL
133};
134
135struct dso {
136 struct list_head node;
137 struct rb_root symbols[MAP__NR_TYPES];
138 struct rb_root symbol_names[MAP__NR_TYPES];
139 enum dso_kernel_type kernel;
140 u8 adjust_symbols:1;
141 u8 has_build_id:1;
142 u8 hit:1;
143 u8 annotate_warned:1;
144 u8 sname_alloc:1;
145 u8 lname_alloc:1;
146 unsigned char symtab_type;
147 u8 sorted_by_name;
148 u8 loaded;
149 u8 build_id[BUILD_ID_SIZE];
150 const char *short_name;
151 char *long_name;
152 u16 long_name_len;
153 u16 short_name_len;
154 char name[0];
155};
156
157struct dso *dso__new(const char *name);
158void dso__delete(struct dso *dso);
159
160int dso__name_len(const struct dso *dso);
161
162bool dso__loaded(const struct dso *dso, enum map_type type);
163bool dso__sorted_by_name(const struct dso *dso, enum map_type type);
164
165static inline void dso__set_loaded(struct dso *dso, enum map_type type)
166{
167 dso->loaded |= (1 << type);
168}
169
170void dso__sort_by_name(struct dso *dso, enum map_type type);
171
172struct dso *__dsos__findnew(struct list_head *head, const char *name);
173
174int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
175int dso__load_vmlinux(struct dso *dso, struct map *map,
176 const char *vmlinux, symbol_filter_t filter);
177int dso__load_vmlinux_path(struct dso *dso, struct map *map,
178 symbol_filter_t filter);
179int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
180 symbol_filter_t filter);
181int machine__load_kallsyms(struct machine *machine, const char *filename,
182 enum map_type type, symbol_filter_t filter);
183int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
184 symbol_filter_t filter);
185
186size_t __dsos__fprintf(struct list_head *head, FILE *fp);
187
188size_t machine__fprintf_dsos_buildid(struct machine *machine,
189 FILE *fp, bool with_hits);
190size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp);
191size_t machines__fprintf_dsos_buildid(struct rb_root *machines,
192 FILE *fp, bool with_hits);
193size_t dso__fprintf_buildid(struct dso *dso, FILE *fp);
194size_t dso__fprintf_symbols_by_name(struct dso *dso,
195 enum map_type type, FILE *fp);
196size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp);
197
198enum symtab_type {
199 SYMTAB__KALLSYMS = 0,
200 SYMTAB__GUEST_KALLSYMS,
201 SYMTAB__JAVA_JIT,
202 SYMTAB__BUILD_ID_CACHE,
203 SYMTAB__FEDORA_DEBUGINFO,
204 SYMTAB__UBUNTU_DEBUGINFO,
205 SYMTAB__BUILDID_DEBUGINFO,
206 SYMTAB__SYSTEM_PATH_DSO,
207 SYMTAB__GUEST_KMODULE,
208 SYMTAB__SYSTEM_PATH_KMODULE,
209 SYMTAB__NOT_FOUND,
210};
211
212char dso__symtab_origin(const struct dso *dso);
213void dso__set_long_name(struct dso *dso, char *name);
214void dso__set_build_id(struct dso *dso, void *build_id);
215void dso__read_running_kernel_build_id(struct dso *dso,
216 struct machine *machine);
217struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
218 u64 addr);
219struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
220 const char *name);
221
222int filename__read_build_id(const char *filename, void *bf, size_t size);
223int sysfs__read_build_id(const char *filename, void *bf, size_t size);
224bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
225int build_id__sprintf(const u8 *build_id, int len, char *bf);
226int kallsyms__parse(const char *filename, void *arg,
227 int (*process_symbol)(void *arg, const char *name,
228 char type, u64 start, u64 end));
229
230void machine__destroy_kernel_maps(struct machine *machine);
231int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
232int machine__create_kernel_maps(struct machine *machine);
233
234int machines__create_kernel_maps(struct rb_root *machines, pid_t pid);
235int machines__create_guest_kernel_maps(struct rb_root *machines);
236void machines__destroy_guest_kernel_maps(struct rb_root *machines);
237
238int symbol__init(void);
239void symbol__exit(void);
240bool symbol_type__is_a(char symbol_type, enum map_type map_type);
241
242size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
243
244#endif /* __PERF_SYMBOL */
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 HAVE_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_SUPPORT
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 * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
47 * for newer versions we can use mmap to reduce memory usage:
48 */
49#ifdef HAVE_LIBELF_MMAP_SUPPORT
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#ifdef HAVE_LIBELF_SUPPORT
56extern Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
57 GElf_Shdr *shp, const char *name, size_t *idx);
58#endif
59
60#ifndef DMGL_PARAMS
61#define DMGL_PARAMS (1 << 0) /* Include function args */
62#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
63#endif
64
65/** struct symbol - symtab entry
66 *
67 * @ignore - resolvable but tools ignore it (e.g. idle routines)
68 */
69struct symbol {
70 struct rb_node rb_node;
71 u64 start;
72 u64 end;
73 u16 namelen;
74 u8 binding;
75 bool ignore;
76 char name[0];
77};
78
79void symbol__delete(struct symbol *sym);
80void symbols__delete(struct rb_root *symbols);
81
82/* symbols__for_each_entry - iterate over symbols (rb_root)
83 *
84 * @symbols: the rb_root of symbols
85 * @pos: the 'struct symbol *' to use as a loop cursor
86 * @nd: the 'struct rb_node *' to use as a temporary storage
87 */
88#define symbols__for_each_entry(symbols, pos, nd) \
89 for (nd = rb_first(symbols); \
90 nd && (pos = rb_entry(nd, struct symbol, rb_node)); \
91 nd = rb_next(nd))
92
93static inline size_t symbol__size(const struct symbol *sym)
94{
95 return sym->end - sym->start + 1;
96}
97
98struct strlist;
99
100struct symbol_conf {
101 unsigned short priv_size;
102 unsigned short nr_events;
103 bool try_vmlinux_path,
104 ignore_vmlinux,
105 show_kernel_path,
106 use_modules,
107 sort_by_name,
108 show_nr_samples,
109 show_total_period,
110 use_callchain,
111 exclude_other,
112 show_cpu_utilization,
113 initialized,
114 kptr_restrict,
115 annotate_asm_raw,
116 annotate_src,
117 event_group,
118 demangle;
119 const char *vmlinux_name,
120 *kallsyms_name,
121 *source_prefix,
122 *field_sep;
123 const char *default_guest_vmlinux_name,
124 *default_guest_kallsyms,
125 *default_guest_modules;
126 const char *guestmount;
127 const char *dso_list_str,
128 *comm_list_str,
129 *sym_list_str,
130 *col_width_list_str;
131 struct strlist *dso_list,
132 *comm_list,
133 *sym_list,
134 *dso_from_list,
135 *dso_to_list,
136 *sym_from_list,
137 *sym_to_list;
138 const char *symfs;
139};
140
141extern struct symbol_conf symbol_conf;
142extern int vmlinux_path__nr_entries;
143extern char **vmlinux_path;
144
145static inline void *symbol__priv(struct symbol *sym)
146{
147 return ((void *)sym) - symbol_conf.priv_size;
148}
149
150struct ref_reloc_sym {
151 const char *name;
152 u64 addr;
153 u64 unrelocated_addr;
154};
155
156struct map_symbol {
157 struct map *map;
158 struct symbol *sym;
159 bool unfolded;
160 bool has_children;
161};
162
163struct addr_map_symbol {
164 struct map *map;
165 struct symbol *sym;
166 u64 addr;
167 u64 al_addr;
168};
169
170struct branch_info {
171 struct addr_map_symbol from;
172 struct addr_map_symbol to;
173 struct branch_flags flags;
174};
175
176struct mem_info {
177 struct addr_map_symbol iaddr;
178 struct addr_map_symbol daddr;
179 union perf_mem_data_src data_src;
180};
181
182struct addr_location {
183 struct machine *machine;
184 struct thread *thread;
185 struct map *map;
186 struct symbol *sym;
187 u64 addr;
188 char level;
189 u8 filtered;
190 u8 cpumode;
191 s32 cpu;
192};
193
194struct symsrc {
195 char *name;
196 int fd;
197 enum dso_binary_type type;
198
199#ifdef HAVE_LIBELF_SUPPORT
200 Elf *elf;
201 GElf_Ehdr ehdr;
202
203 Elf_Scn *opdsec;
204 size_t opdidx;
205 GElf_Shdr opdshdr;
206
207 Elf_Scn *symtab;
208 GElf_Shdr symshdr;
209
210 Elf_Scn *dynsym;
211 size_t dynsym_idx;
212 GElf_Shdr dynshdr;
213
214 bool adjust_symbols;
215#endif
216};
217
218void symsrc__destroy(struct symsrc *ss);
219int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
220 enum dso_binary_type type);
221bool symsrc__has_symtab(struct symsrc *ss);
222bool symsrc__possibly_runtime(struct symsrc *ss);
223
224int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
225int dso__load_vmlinux(struct dso *dso, struct map *map,
226 const char *vmlinux, bool vmlinux_allocated,
227 symbol_filter_t filter);
228int dso__load_vmlinux_path(struct dso *dso, struct map *map,
229 symbol_filter_t filter);
230int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
231 symbol_filter_t filter);
232
233struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
234 u64 addr);
235struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
236 const char *name);
237
238int filename__read_build_id(const char *filename, void *bf, size_t size);
239int sysfs__read_build_id(const char *filename, void *bf, size_t size);
240int modules__parse(const char *filename, void *arg,
241 int (*process_module)(void *arg, const char *name,
242 u64 start));
243int filename__read_debuglink(const char *filename, char *debuglink,
244 size_t size);
245
246int symbol__init(void);
247void symbol__exit(void);
248void symbol__elf_init(void);
249struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
250size_t symbol__fprintf_symname_offs(const struct symbol *sym,
251 const struct addr_location *al, FILE *fp);
252size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
253size_t symbol__fprintf(struct symbol *sym, FILE *fp);
254bool symbol_type__is_a(char symbol_type, enum map_type map_type);
255bool symbol__restricted_filename(const char *filename,
256 const char *restricted_filename);
257bool symbol__is_idle(struct symbol *sym);
258
259int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
260 struct symsrc *runtime_ss, symbol_filter_t filter,
261 int kmodule);
262int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
263 struct map *map, symbol_filter_t filter);
264
265void symbols__insert(struct rb_root *symbols, struct symbol *sym);
266void symbols__fixup_duplicate(struct rb_root *symbols);
267void symbols__fixup_end(struct rb_root *symbols);
268void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
269
270typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
271int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
272 bool *is_64_bit);
273
274#define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
275
276struct kcore_extract {
277 char *kcore_filename;
278 u64 addr;
279 u64 offs;
280 u64 len;
281 char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
282 int fd;
283};
284
285int kcore_extract__create(struct kcore_extract *kce);
286void kcore_extract__delete(struct kcore_extract *kce);
287
288int kcore_copy(const char *from_dir, const char *to_dir);
289int compare_proc_modules(const char *from, const char *to);
290
291int setup_list(struct strlist **list, const char *list_str,
292 const char *list_name);
293
294#endif /* __PERF_SYMBOL */