Root/tools/perf/util/symbol.h

1#ifndef __PERF_SYMBOL
2#define __PERF_SYMBOL 1
3
4#include <linux/types.h>
5#include <stdbool.h>
6#include "types.h"
7#include <linux/list.h>
8#include <linux/rbtree.h>
9#include "event.h"
10
11#define DEBUG_CACHE_DIR ".debug"
12
13#ifdef HAVE_CPLUS_DEMANGLE
14extern char *cplus_demangle(const char *, int);
15
16static inline char *bfd_demangle(void __used *v, const char *c, int i)
17{
18    return cplus_demangle(c, i);
19}
20#else
21#ifdef NO_DEMANGLE
22static inline char *bfd_demangle(void __used *v, const char __used *c,
23                 int __used i)
24{
25    return NULL;
26}
27#else
28#include <bfd.h>
29#endif
30#endif
31
32/*
33 * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
34 * for newer versions we can use mmap to reduce memory usage:
35 */
36#ifdef LIBELF_NO_MMAP
37# define PERF_ELF_C_READ_MMAP ELF_C_READ
38#else
39# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
40#endif
41
42#ifndef DMGL_PARAMS
43#define DMGL_PARAMS (1 << 0) /* Include function args */
44#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
45#endif
46
47struct symbol {
48    struct rb_node rb_node;
49    u64 start;
50    u64 end;
51    char name[0];
52};
53
54void symbol__delete(struct symbol *self);
55
56struct strlist;
57
58struct symbol_conf {
59    unsigned short priv_size;
60    bool try_vmlinux_path,
61            use_modules,
62            sort_by_name,
63            show_nr_samples,
64            use_callchain,
65            exclude_other,
66            full_paths;
67    const char *vmlinux_name,
68            *field_sep;
69    char *dso_list_str,
70            *comm_list_str,
71            *sym_list_str,
72            *col_width_list_str;
73       struct strlist *dso_list,
74            *comm_list,
75            *sym_list;
76};
77
78extern struct symbol_conf symbol_conf;
79
80static inline void *symbol__priv(struct symbol *self)
81{
82    return ((void *)self) - symbol_conf.priv_size;
83}
84
85struct ref_reloc_sym {
86    const char *name;
87    u64 addr;
88    u64 unrelocated_addr;
89};
90
91struct addr_location {
92    struct thread *thread;
93    struct map *map;
94    struct symbol *sym;
95    u64 addr;
96    char level;
97    bool filtered;
98};
99
100struct dso {
101    struct list_head node;
102    struct rb_root symbols[MAP__NR_TYPES];
103    struct rb_root symbol_names[MAP__NR_TYPES];
104    u8 adjust_symbols:1;
105    u8 slen_calculated:1;
106    u8 has_build_id:1;
107    u8 kernel:1;
108    u8 hit:1;
109    unsigned char origin;
110    u8 sorted_by_name;
111    u8 loaded;
112    u8 build_id[BUILD_ID_SIZE];
113    const char *short_name;
114    char *long_name;
115    u16 long_name_len;
116    u16 short_name_len;
117    char name[0];
118};
119
120struct dso *dso__new(const char *name);
121struct dso *dso__new_kernel(const char *name);
122void dso__delete(struct dso *self);
123
124bool dso__loaded(const struct dso *self, enum map_type type);
125bool dso__sorted_by_name(const struct dso *self, enum map_type type);
126
127static inline void dso__set_loaded(struct dso *self, enum map_type type)
128{
129    self->loaded |= (1 << type);
130}
131
132void dso__sort_by_name(struct dso *self, enum map_type type);
133
134extern struct list_head dsos__user, dsos__kernel;
135
136struct dso *__dsos__findnew(struct list_head *head, const char *name);
137
138static inline struct dso *dsos__findnew(const char *name)
139{
140    return __dsos__findnew(&dsos__user, name);
141}
142
143int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
144int dso__load_vmlinux_path(struct dso *self, struct map *map,
145               symbol_filter_t filter);
146int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map,
147               symbol_filter_t filter);
148void dsos__fprintf(FILE *fp);
149size_t dsos__fprintf_buildid(FILE *fp, bool with_hits);
150
151size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
152size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
153char dso__symtab_origin(const struct dso *self);
154void dso__set_long_name(struct dso *self, char *name);
155void dso__set_build_id(struct dso *self, void *build_id);
156void dso__read_running_kernel_build_id(struct dso *self);
157struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
158struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
159                    const char *name);
160
161int filename__read_build_id(const char *filename, void *bf, size_t size);
162int sysfs__read_build_id(const char *filename, void *bf, size_t size);
163bool dsos__read_build_ids(bool with_hits);
164int build_id__sprintf(const u8 *self, int len, char *bf);
165int kallsyms__parse(const char *filename, void *arg,
166            int (*process_symbol)(void *arg, const char *name,
167                      char type, u64 start));
168
169int symbol__init(void);
170bool symbol_type__is_a(char symbol_type, enum map_type map_type);
171
172#endif /* __PERF_SYMBOL */
173

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