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
13 extern char *cplus_demangle(const char *, int);
14
bfd_demangle(void __used * v,const char * c,int i)15 static 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
bfd_demangle(void __used * v,const char __used * c,int __used i)21 static 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
31 int hex2u64(const char *ptr, u64 *val);
32 char *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 */
55 struct 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
65 void symbol__delete(struct symbol *self);
66
67 struct strlist;
68
69 struct 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 const char *vmlinux_name,
80 *kallsyms_name,
81 *source_prefix,
82 *field_sep;
83 const char *default_guest_vmlinux_name,
84 *default_guest_kallsyms,
85 *default_guest_modules;
86 const char *guestmount;
87 const char *dso_list_str,
88 *comm_list_str,
89 *sym_list_str,
90 *col_width_list_str;
91 struct strlist *dso_list,
92 *comm_list,
93 *sym_list;
94 const char *symfs;
95 };
96
97 extern struct symbol_conf symbol_conf;
98
symbol__priv(struct symbol * self)99 static inline void *symbol__priv(struct symbol *self)
100 {
101 return ((void *)self) - symbol_conf.priv_size;
102 }
103
104 struct ref_reloc_sym {
105 const char *name;
106 u64 addr;
107 u64 unrelocated_addr;
108 };
109
110 struct map_symbol {
111 struct map *map;
112 struct symbol *sym;
113 bool unfolded;
114 bool has_children;
115 };
116
117 struct addr_location {
118 struct thread *thread;
119 struct map *map;
120 struct symbol *sym;
121 u64 addr;
122 char level;
123 bool filtered;
124 u8 cpumode;
125 s32 cpu;
126 };
127
128 enum dso_kernel_type {
129 DSO_TYPE_USER = 0,
130 DSO_TYPE_KERNEL,
131 DSO_TYPE_GUEST_KERNEL
132 };
133
134 struct dso {
135 struct list_head node;
136 struct rb_root symbols[MAP__NR_TYPES];
137 struct rb_root symbol_names[MAP__NR_TYPES];
138 enum dso_kernel_type kernel;
139 u8 adjust_symbols:1;
140 u8 has_build_id:1;
141 u8 hit:1;
142 u8 annotate_warned:1;
143 u8 sname_alloc:1;
144 u8 lname_alloc:1;
145 unsigned char symtab_type;
146 u8 sorted_by_name;
147 u8 loaded;
148 u8 build_id[BUILD_ID_SIZE];
149 const char *short_name;
150 char *long_name;
151 u16 long_name_len;
152 u16 short_name_len;
153 char name[0];
154 };
155
156 struct dso *dso__new(const char *name);
157 struct dso *dso__new_kernel(const char *name);
158 void dso__delete(struct dso *self);
159
160 int dso__name_len(const struct dso *self);
161
162 bool dso__loaded(const struct dso *self, enum map_type type);
163 bool dso__sorted_by_name(const struct dso *self, enum map_type type);
164
dso__set_loaded(struct dso * self,enum map_type type)165 static inline void dso__set_loaded(struct dso *self, enum map_type type)
166 {
167 self->loaded |= (1 << type);
168 }
169
170 void dso__sort_by_name(struct dso *self, enum map_type type);
171
172 struct dso *__dsos__findnew(struct list_head *head, const char *name);
173
174 int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
175 int dso__load_vmlinux(struct dso *self, struct map *map,
176 const char *vmlinux, symbol_filter_t filter);
177 int dso__load_vmlinux_path(struct dso *self, struct map *map,
178 symbol_filter_t filter);
179 int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map,
180 symbol_filter_t filter);
181 int machine__load_kallsyms(struct machine *self, const char *filename,
182 enum map_type type, symbol_filter_t filter);
183 int machine__load_vmlinux_path(struct machine *self, enum map_type type,
184 symbol_filter_t filter);
185
186 size_t __dsos__fprintf(struct list_head *head, FILE *fp);
187
188 size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits);
189 size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp);
190 size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits);
191
192 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
193 size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp);
194 size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
195
196 enum symtab_type {
197 SYMTAB__KALLSYMS = 0,
198 SYMTAB__GUEST_KALLSYMS,
199 SYMTAB__JAVA_JIT,
200 SYMTAB__BUILD_ID_CACHE,
201 SYMTAB__FEDORA_DEBUGINFO,
202 SYMTAB__UBUNTU_DEBUGINFO,
203 SYMTAB__BUILDID_DEBUGINFO,
204 SYMTAB__SYSTEM_PATH_DSO,
205 SYMTAB__GUEST_KMODULE,
206 SYMTAB__SYSTEM_PATH_KMODULE,
207 SYMTAB__NOT_FOUND,
208 };
209
210 char dso__symtab_origin(const struct dso *self);
211 void dso__set_long_name(struct dso *self, char *name);
212 void dso__set_build_id(struct dso *self, void *build_id);
213 void dso__read_running_kernel_build_id(struct dso *self, struct machine *machine);
214 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
215 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
216 const char *name);
217
218 int filename__read_build_id(const char *filename, void *bf, size_t size);
219 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
220 bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
221 int build_id__sprintf(const u8 *self, int len, char *bf);
222 int kallsyms__parse(const char *filename, void *arg,
223 int (*process_symbol)(void *arg, const char *name,
224 char type, u64 start, u64 end));
225
226 void machine__destroy_kernel_maps(struct machine *self);
227 int __machine__create_kernel_maps(struct machine *self, struct dso *kernel);
228 int machine__create_kernel_maps(struct machine *self);
229
230 int machines__create_kernel_maps(struct rb_root *self, pid_t pid);
231 int machines__create_guest_kernel_maps(struct rb_root *self);
232 void machines__destroy_guest_kernel_maps(struct rb_root *self);
233
234 int symbol__init(void);
235 void symbol__exit(void);
236 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
237
238 size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp);
239
240 #endif /* __PERF_SYMBOL */
241