aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/util/symbol.h
blob: a4a894b8ea03d97c1aaddd76b42ea469f297d4ce (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
#ifndef __PERF_SYMBOL
#define __PERF_SYMBOL 1

#include <linux/types.h>
#include <stdbool.h>
#include "types.h"
#include <linux/list.h>
#include <linux/rbtree.h>
#include "event.h"

#define DEBUG_CACHE_DIR ".debug"

#ifdef HAVE_CPLUS_DEMANGLE
extern char *cplus_demangle(const char *, int);

static inline char *bfd_demangle(void __used *v, const char *c, int i)
{
	return cplus_demangle(c, i);
}
#else
#ifdef NO_DEMANGLE
static inline char *bfd_demangle(void __used *v, const char __used *c,
				 int __used i)
{
	return NULL;
}
#else
#include <bfd.h>
#endif
#endif

/*
 * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
 * for newer versions we can use mmap to reduce memory usage:
 */
#ifdef LIBELF_NO_MMAP
# define PERF_ELF_C_READ_MMAP ELF_C_READ
#else
# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
#endif

#ifndef DMGL_PARAMS
#define DMGL_PARAMS      (1 << 0)       /* Include function args */
#define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
#endif

struct symbol {
	struct rb_node	rb_node;
	u64		start;
	u64		end;
	char		name[0];
};

void symbol__delete(struct symbol *self);

struct strlist;

struct symbol_conf {
	unsigned short	priv_size;
	bool		try_vmlinux_path,
			use_modules,
			sort_by_name,
			show_nr_samples,
			use_callchain,
			exclude_other,
			full_paths;
	const char	*vmlinux_name,
			*field_sep;
	char            *dso_list_str,
			*comm_list_str,
			*sym_list_str,
			*col_width_list_str;
       struct strlist	*dso_list,
			*comm_list,
			*sym_list;
};

extern struct symbol_conf symbol_conf;

static inline void *symbol__priv(struct symbol *self)
{
	return ((void *)self) - symbol_conf.priv_size;
}

struct ref_reloc_sym {
	const char	*name;
	u64		addr;
	u64		unrelocated_addr;
};

struct map_symbol {
	struct map    *map;
	struct symbol *sym;
};

struct addr_location {
	struct thread *thread;
	struct map    *map;
	struct symbol *sym;
	u64	      addr;
	char	      level;
	bool	      filtered;
};

struct dso {
	struct list_head node;
	struct rb_root	 symbols[MAP__NR_TYPES];
	struct rb_root	 symbol_names[MAP__NR_TYPES];
	u8		 adjust_symbols:1;
	u8		 slen_calculated:1;
	u8		 has_build_id:1;
	u8		 kernel:1;
	u8		 hit:1;
	u8		 annotate_warned:1;
	unsigned char	 origin;
	u8		 sorted_by_name;
	u8		 loaded;
	u8		 build_id[BUILD_ID_SIZE];
	const char	 *short_name;
	char	 	 *long_name;
	u16		 long_name_len;
	u16		 short_name_len;
	char		 name[0];
};

struct dso *dso__new(const char *name);
struct dso *dso__new_kernel(const char *name);
void dso__delete(struct dso *self);

bool dso__loaded(const struct dso *self, enum map_type type);
bool dso__sorted_by_name(const struct dso *self, enum map_type type);

static inline void dso__set_loaded(struct dso *self, enum map_type type)
{
	self->loaded |= (1 << type);
}

void dso__sort_by_name(struct dso *self, enum map_type type);

extern struct list_head dsos__user, dsos__kernel;

struct dso *__dsos__findnew(struct list_head *head, const char *name);

static inline struct dso *dsos__findnew(const char *name)
{
	return __dsos__findnew(&dsos__user, name);
}

int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
int dso__load_vmlinux_path(struct dso *self, struct map *map,
			   symbol_filter_t filter);
int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map,
		       symbol_filter_t filter);
void dsos__fprintf(FILE *fp);
size_t dsos__fprintf_buildid(FILE *fp, bool with_hits);

size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);

enum dso_origin {
	DSO__ORIG_KERNEL = 0,
	DSO__ORIG_JAVA_JIT,
	DSO__ORIG_BUILD_ID_CACHE,
	DSO__ORIG_FEDORA,
	DSO__ORIG_UBUNTU,
	DSO__ORIG_BUILDID,
	DSO__ORIG_DSO,
	DSO__ORIG_KMODULE,
	DSO__ORIG_NOT_FOUND,
};

char dso__symtab_origin(const struct dso *self);
void dso__set_long_name(struct dso *self, char *name);
void dso__set_build_id(struct dso *self, void *build_id);
void dso__read_running_kernel_build_id(struct dso *self);
struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
					const char *name);

int filename__read_build_id(const char *filename, void *bf, size_t size);
int sysfs__read_build_id(const char *filename, void *bf, size_t size);
bool dsos__read_build_ids(bool with_hits);
int build_id__sprintf(const u8 *self, int len, char *bf);
int kallsyms__parse(const char *filename, void *arg,
		    int (*process_symbol)(void *arg, const char *name,
					  char type, u64 start));

int symbol__init(void);
bool symbol_type__is_a(char symbol_type, enum map_type map_type);

size_t vmlinux_path__fprintf(FILE *fp);

#endif /* __PERF_SYMBOL */