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John Kacur8b40f522009-09-24 18:02:18 +02001#ifndef __PERF_SYMBOL
2#define __PERF_SYMBOL 1
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -03003
4#include <linux/types.h>
Arnaldo Carvalho de Meloe4204992009-10-20 14:25:40 -02005#include <stdbool.h>
Arnaldo Carvalho de Melo5aab6212010-03-25 19:59:00 -03006#include <stdint.h>
7#include "map.h"
Roberto Agostino Vitillob5387522012-02-09 23:21:01 +01008#include "../perf.h"
Arnaldo Carvalho de Melo5da50252009-07-01 14:46:08 -03009#include <linux/list.h>
Arnaldo Carvalho de Melo43cbcd82009-07-01 12:28:37 -030010#include <linux/rbtree.h>
Arnaldo Carvalho de Melo5aab6212010-03-25 19:59:00 -030011#include <stdio.h>
Jiri Olsa8db48412012-05-30 14:23:42 +020012#include <byteswap.h>
Irina Tirdeab771a832012-09-08 03:43:17 +030013#include <libgen.h>
Jiri Olsa4383db82012-10-27 23:18:29 +020014#include "build-id.h"
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -030015
Namhyung Kim29a0fc92012-09-28 18:31:59 +090016#ifdef LIBELF_SUPPORT
Cody P Schaferb68e2f92012-08-10 15:22:57 -070017#include <libelf.h>
18#include <gelf.h>
Cody P Schaferb68e2f92012-08-10 15:22:57 -070019#endif
Namhyung Kimeec185a2012-12-28 16:16:49 +090020#include <elf.h>
Cody P Schaferb68e2f92012-08-10 15:22:57 -070021
Jiri Olsacdd059d2012-10-27 23:18:32 +020022#include "dso.h"
23
Arnaldo Carvalho de Melo247648e2009-08-11 16:22:11 -030024#ifdef HAVE_CPLUS_DEMANGLE
25extern char *cplus_demangle(const char *, int);
26
Irina Tirdea1d037ca2012-09-11 01:15:03 +030027static inline char *bfd_demangle(void __maybe_unused *v, const char *c, int i)
Arnaldo Carvalho de Melo247648e2009-08-11 16:22:11 -030028{
29 return cplus_demangle(c, i);
30}
31#else
32#ifdef NO_DEMANGLE
Irina Tirdea1d037ca2012-09-11 01:15:03 +030033static inline char *bfd_demangle(void __maybe_unused *v,
34 const char __maybe_unused *c,
35 int __maybe_unused i)
Arnaldo Carvalho de Melo247648e2009-08-11 16:22:11 -030036{
37 return NULL;
38}
39#else
Markus Trippelsdorf3ce711a2012-09-19 09:29:02 +020040#define PACKAGE 'perf'
Arnaldo Carvalho de Melo247648e2009-08-11 16:22:11 -030041#include <bfd.h>
42#endif
43#endif
44
Marti Raudsepp84087122009-10-24 19:10:36 +030045/*
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 */
Namhyung Kim29a0fc92012-09-28 18:31:59 +090049#ifdef LIBELF_MMAP
Marti Raudsepp84087122009-10-24 19:10:36 +030050# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
Namhyung Kim29a0fc92012-09-28 18:31:59 +090051#else
52# define PERF_ELF_C_READ_MMAP ELF_C_READ
Marti Raudsepp84087122009-10-24 19:10:36 +030053#endif
54
Arnaldo Carvalho de Melo247648e2009-08-11 16:22:11 -030055#ifndef DMGL_PARAMS
56#define DMGL_PARAMS (1 << 0) /* Include function args */
57#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
58#endif
59
Arnaldo Carvalho de Melo171b3be2011-03-11 13:36:01 -030060/** struct symbol - symtab entry
61 *
62 * @ignore - resolvable but tools ignore it (e.g. idle routines)
63 */
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -030064struct symbol {
65 struct rb_node rb_node;
Paul Mackerras9cffa8d2009-06-19 22:21:42 +100066 u64 start;
67 u64 end;
Arnaldo Carvalho de Melofefb0b92010-05-10 13:57:51 -030068 u16 namelen;
Arnaldo Carvalho de Meloc408fed2010-08-05 12:59:47 -030069 u8 binding;
Arnaldo Carvalho de Melo171b3be2011-03-11 13:36:01 -030070 bool ignore;
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -030071 char name[0];
72};
73
Arnaldo Carvalho de Meloaeafcba2011-03-31 10:56:28 -030074void symbol__delete(struct symbol *sym);
Jiri Olsacdd059d2012-10-27 23:18:32 +020075void symbols__delete(struct rb_root *symbols);
Arnaldo Carvalho de Melo628ada02010-02-25 12:57:40 -030076
Arnaldo Carvalho de Melo1b2e2df2012-04-19 10:57:06 -030077static inline size_t symbol__size(const struct symbol *sym)
78{
79 return sym->end - sym->start + 1;
80}
81
Arnaldo Carvalho de Melo655000e2009-12-15 20:04:40 -020082struct strlist;
83
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -020084struct symbol_conf {
85 unsigned short priv_size;
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -020086 unsigned short nr_events;
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -020087 bool try_vmlinux_path,
Akihiro Nagai0bc8d202012-01-30 13:43:20 +090088 show_kernel_path,
Arnaldo Carvalho de Melo79406cd2009-12-11 18:50:22 -020089 use_modules,
Arnaldo Carvalho de Melod599db32009-12-15 20:04:42 -020090 sort_by_name,
91 show_nr_samples,
Arnaldo Carvalho de Melo3f2728b2011-10-05 16:10:06 -030092 show_total_period,
Arnaldo Carvalho de Melod599db32009-12-15 20:04:42 -020093 use_callchain,
Arnaldo Carvalho de Melof7d87442009-12-27 21:37:04 -020094 exclude_other,
Jovi Zhang85e00b52010-09-09 13:30:59 -030095 show_cpu_utilization,
Arnaldo Carvalho de Meloec80fde2011-05-26 09:53:51 -030096 initialized,
Stephane Eranian3e6a2a72011-05-17 17:32:07 +020097 kptr_restrict,
98 annotate_asm_raw,
Namhyung Kim6e1f6012013-01-22 18:09:32 +090099 annotate_src,
Namhyung Kim328ccda2013-03-25 18:18:18 +0900100 event_group,
101 demangle;
Arnaldo Carvalho de Meloc410a332009-12-15 20:04:41 -0200102 const char *vmlinux_name,
David Ahernb226a5a72010-12-07 19:39:46 -0700103 *kallsyms_name,
Chase Douglas9ed7e1b2010-06-14 15:26:30 -0400104 *source_prefix,
Arnaldo Carvalho de Meloc410a332009-12-15 20:04:41 -0200105 *field_sep;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800106 const char *default_guest_vmlinux_name,
107 *default_guest_kallsyms,
108 *default_guest_modules;
109 const char *guestmount;
Arnaldo Carvalho de Meloedb7c602010-05-17 16:22:41 -0300110 const char *dso_list_str,
Arnaldo Carvalho de Melo655000e2009-12-15 20:04:40 -0200111 *comm_list_str,
112 *sym_list_str,
113 *col_width_list_str;
114 struct strlist *dso_list,
115 *comm_list,
Stephane Eraniana68c2c52012-03-08 23:47:48 +0100116 *sym_list,
117 *dso_from_list,
118 *dso_to_list,
119 *sym_from_list,
120 *sym_to_list;
David Ahernec5761e2010-12-09 13:27:07 -0700121 const char *symfs;
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -0200122};
123
Arnaldo Carvalho de Melo75be6cf2009-12-15 20:04:39 -0200124extern struct symbol_conf symbol_conf;
Arnaldo Carvalho de Melo3f067dc2012-12-07 17:39:39 -0300125extern int vmlinux_path__nr_entries;
126extern char **vmlinux_path;
Arnaldo Carvalho de Melo00a192b2009-10-30 16:28:24 -0200127
Arnaldo Carvalho de Meloaeafcba2011-03-31 10:56:28 -0300128static inline void *symbol__priv(struct symbol *sym)
Arnaldo Carvalho de Melo00a192b2009-10-30 16:28:24 -0200129{
Arnaldo Carvalho de Meloaeafcba2011-03-31 10:56:28 -0300130 return ((void *)sym) - symbol_conf.priv_size;
Arnaldo Carvalho de Melo00a192b2009-10-30 16:28:24 -0200131}
132
Arnaldo Carvalho de Melo9de89fe2010-02-03 16:52:00 -0200133struct ref_reloc_sym {
134 const char *name;
135 u64 addr;
136 u64 unrelocated_addr;
137};
138
Arnaldo Carvalho de Melo59fd5302010-03-24 16:40:17 -0300139struct map_symbol {
140 struct map *map;
141 struct symbol *sym;
Arnaldo Carvalho de Melo0f0cbf72010-07-26 17:13:40 -0300142 bool unfolded;
143 bool has_children;
Arnaldo Carvalho de Melo59fd5302010-03-24 16:40:17 -0300144};
145
Roberto Agostino Vitillob5387522012-02-09 23:21:01 +0100146struct addr_map_symbol {
147 struct map *map;
148 struct symbol *sym;
149 u64 addr;
Stephane Eraniana68c2c52012-03-08 23:47:48 +0100150 u64 al_addr;
Roberto Agostino Vitillob5387522012-02-09 23:21:01 +0100151};
152
153struct branch_info {
154 struct addr_map_symbol from;
155 struct addr_map_symbol to;
156 struct branch_flags flags;
157};
158
Stephane Eranian98a3b322013-01-24 16:10:35 +0100159struct mem_info {
160 struct addr_map_symbol iaddr;
161 struct addr_map_symbol daddr;
162 union perf_mem_data_src data_src;
163};
164
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200165struct addr_location {
166 struct thread *thread;
167 struct map *map;
168 struct symbol *sym;
169 u64 addr;
170 char level;
Arnaldo Carvalho de Meloc410a332009-12-15 20:04:41 -0200171 bool filtered;
Arun Sharmaf60f3592010-06-04 11:27:10 -0300172 u8 cpumode;
173 s32 cpu;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800174};
175
Cody P Schaferb68e2f92012-08-10 15:22:57 -0700176struct symsrc {
177 char *name;
178 int fd;
179 enum dso_binary_type type;
180
Namhyung Kim29a0fc92012-09-28 18:31:59 +0900181#ifdef LIBELF_SUPPORT
Cody P Schaferb68e2f92012-08-10 15:22:57 -0700182 Elf *elf;
183 GElf_Ehdr ehdr;
184
185 Elf_Scn *opdsec;
186 size_t opdidx;
187 GElf_Shdr opdshdr;
188
189 Elf_Scn *symtab;
190 GElf_Shdr symshdr;
191
192 Elf_Scn *dynsym;
193 size_t dynsym_idx;
194 GElf_Shdr dynshdr;
195
196 bool adjust_symbols;
197#endif
198};
199
200void symsrc__destroy(struct symsrc *ss);
201int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
202 enum dso_binary_type type);
Cody P Schaferd26cd122012-08-10 15:23:00 -0700203bool symsrc__has_symtab(struct symsrc *ss);
Cody P Schafer3aafe5a2012-08-10 15:23:02 -0700204bool symsrc__possibly_runtime(struct symsrc *ss);
Cody P Schaferb68e2f92012-08-10 15:22:57 -0700205
Arnaldo Carvalho de Meloaeafcba2011-03-31 10:56:28 -0300206int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter);
207int dso__load_vmlinux(struct dso *dso, struct map *map,
Franck Bui-Huufd930ff2010-12-10 14:06:03 +0100208 const char *vmlinux, symbol_filter_t filter);
Arnaldo Carvalho de Meloaeafcba2011-03-31 10:56:28 -0300209int dso__load_vmlinux_path(struct dso *dso, struct map *map,
Arnaldo Carvalho de Melo9de89fe2010-02-03 16:52:00 -0200210 symbol_filter_t filter);
Arnaldo Carvalho de Meloaeafcba2011-03-31 10:56:28 -0300211int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
Arnaldo Carvalho de Melo9de89fe2010-02-03 16:52:00 -0200212 symbol_filter_t filter);
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300213
Arnaldo Carvalho de Meloaeafcba2011-03-31 10:56:28 -0300214struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
215 u64 addr);
216struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type,
Arnaldo Carvalho de Melo79406cd2009-12-11 18:50:22 -0200217 const char *name);
Arnaldo Carvalho de Meloa2928c42009-05-28 14:55:04 -0300218
Arnaldo Carvalho de Melo2643ce12009-11-03 21:46:10 -0200219int filename__read_build_id(const char *filename, void *bf, size_t size);
Arnaldo Carvalho de Melof1617b42009-11-18 20:20:52 -0200220int sysfs__read_build_id(const char *filename, void *bf, size_t size);
Arnaldo Carvalho de Melo9e201442010-01-14 18:30:06 -0200221int kallsyms__parse(const char *filename, void *arg,
222 int (*process_symbol)(void *arg, const char *name,
Cody P Schafer82151522012-08-10 15:22:48 -0700223 char type, u64 start));
Namhyung Kime5a18452012-08-06 13:41:20 +0900224int filename__read_debuglink(const char *filename, char *debuglink,
225 size_t size);
Arnaldo Carvalho de Melo2643ce12009-11-03 21:46:10 -0200226
Arnaldo Carvalho de Melo75be6cf2009-12-15 20:04:39 -0200227int symbol__init(void);
Arnaldo Carvalho de Melod65a4582010-07-30 18:31:28 -0300228void symbol__exit(void);
Namhyung Kim166ccc92012-08-06 13:41:19 +0900229void symbol__elf_init(void);
Namhyung Kime5a18452012-08-06 13:41:20 +0900230struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
Akihiro Nagaia978f2a2012-01-30 13:43:15 +0900231size_t symbol__fprintf_symname_offs(const struct symbol *sym,
232 const struct addr_location *al, FILE *fp);
Akihiro Nagai547a92e2012-01-30 13:42:57 +0900233size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
Jiri Olsacdd059d2012-10-27 23:18:32 +0200234size_t symbol__fprintf(struct symbol *sym, FILE *fp);
Arnaldo Carvalho de Melo36a3e642010-01-04 16:19:27 -0200235bool symbol_type__is_a(char symbol_type, enum map_type map_type);
Arnaldo Carvalho de Melo3f067dc2012-12-07 17:39:39 -0300236bool symbol__restricted_filename(const char *filename,
237 const char *restricted_filename);
Arnaldo Carvalho de Melo36a3e642010-01-04 16:19:27 -0200238
Cody P Schafer261360b2012-08-10 15:23:01 -0700239int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
240 struct symsrc *runtime_ss, symbol_filter_t filter,
241 int kmodule);
Cody P Schafera44f6052012-08-10 15:22:59 -0700242int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
243 struct map *map, symbol_filter_t filter);
Namhyung Kime5a18452012-08-06 13:41:20 +0900244
245void symbols__insert(struct rb_root *symbols, struct symbol *sym);
246void symbols__fixup_duplicate(struct rb_root *symbols);
247void symbols__fixup_end(struct rb_root *symbols);
248void __map_groups__fixup_end(struct map_groups *mg, enum map_type type);
249
John Kacur8b40f522009-09-24 18:02:18 +0200250#endif /* __PERF_SYMBOL */