perf record: Introduce a symtab cache
[linux-2.6.git] / 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
14 extern char *cplus_demangle(const char *, int);
15
16 static 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
22 static 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
47 struct symbol {
48         struct rb_node  rb_node;
49         u64             start;
50         u64             end;
51         char            name[0];
52 };
53
54 struct strlist;
55
56 struct symbol_conf {
57         unsigned short  priv_size;
58         bool            try_vmlinux_path,
59                         use_modules,
60                         sort_by_name,
61                         show_nr_samples,
62                         use_callchain,
63                         exclude_other,
64                         full_paths;
65         const char      *vmlinux_name,
66                         *field_sep;
67         char            *dso_list_str,
68                         *comm_list_str,
69                         *sym_list_str,
70                         *col_width_list_str;
71        struct strlist   *dso_list,
72                         *comm_list,
73                         *sym_list;
74 };
75
76 extern struct symbol_conf symbol_conf;
77
78 static inline void *symbol__priv(struct symbol *self)
79 {
80         return ((void *)self) - symbol_conf.priv_size;
81 }
82
83 struct addr_location {
84         struct thread *thread;
85         struct map    *map;
86         struct symbol *sym;
87         u64           addr;
88         char          level;
89         bool          filtered;
90 };
91
92 struct dso {
93         struct list_head node;
94         struct rb_root   symbols[MAP__NR_TYPES];
95         struct rb_root   symbol_names[MAP__NR_TYPES];
96         u8               adjust_symbols:1;
97         u8               slen_calculated:1;
98         u8               has_build_id:1;
99         u8               kernel:1;
100         unsigned char    origin;
101         u8               sorted_by_name;
102         u8               loaded;
103         u8               build_id[BUILD_ID_SIZE];
104         u16              long_name_len;
105         const char       *short_name;
106         char             *long_name;
107         char             name[0];
108 };
109
110 struct dso *dso__new(const char *name);
111 void dso__delete(struct dso *self);
112
113 bool dso__loaded(const struct dso *self, enum map_type type);
114 bool dso__sorted_by_name(const struct dso *self, enum map_type type);
115
116 void dso__sort_by_name(struct dso *self, enum map_type type);
117
118 struct perf_session;
119
120 struct dso *dsos__findnew(const char *name);
121 int dso__load(struct dso *self, struct map *map, struct perf_session *session,
122               symbol_filter_t filter);
123 void dsos__fprintf(FILE *fp);
124 size_t dsos__fprintf_buildid(FILE *fp);
125
126 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
127 size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
128 char dso__symtab_origin(const struct dso *self);
129 void dso__set_build_id(struct dso *self, void *build_id);
130 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
131 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
132                                         const char *name);
133
134 int filename__read_build_id(const char *filename, void *bf, size_t size);
135 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
136 bool dsos__read_build_ids(void);
137 int build_id__sprintf(u8 *self, int len, char *bf);
138
139 int symbol__init(void);
140 int perf_session__create_kernel_maps(struct perf_session *self);
141
142 extern struct list_head dsos__user, dsos__kernel;
143 extern struct dso *vdso;
144 #endif /* __PERF_SYMBOL */