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 <stdint.h>
   7 #include "map.h"
   8 #include <linux/list.h>
   9 #include <linux/rbtree.h>
  10 #include <stdio.h>
  11
  12 #define DEBUG_CACHE_DIR ".debug"
  13
  14 #ifdef HAVE_CPLUS_DEMANGLE
  15 extern char *cplus_demangle(const char *, int);
  16
  17 static inline char *bfd_demangle(void __used *v, const char *c, int i)
  18 {
  19         return cplus_demangle(c, i);
  20 }
  21 #else
  22 #ifdef NO_DEMANGLE
  23 static inline char *bfd_demangle(void __used *v, const char __used *c,
  24                                  int __used i)
  25 {
  26         return NULL;
  27 }
  28 #else
  29 #include <bfd.h>
  30 #endif
  31 #endif
  32
  33 int hex2u64(const char *ptr, u64 *val);
  34 char *strxfrchar(char *s, char from, char to);
  35
  36 /*
  37  * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
  38  * for newer versions we can use mmap to reduce memory usage:
  39  */
  40 #ifdef LIBELF_NO_MMAP
  41 # define PERF_ELF_C_READ_MMAP ELF_C_READ
  42 #else
  43 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
  44 #endif
  45
  46 #ifndef DMGL_PARAMS
  47 #define DMGL_PARAMS      (1 << 0)       /* Include function args */
  48 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
  49 #endif
  50
  51 #define BUILD_ID_SIZE 20
  52
  53 struct symbol {
  54         struct rb_node  rb_node;
  55         u64             start;
  56         u64             end;
  57         char            name[0];
  58 };
  59
  60 void symbol__delete(struct symbol *self);
  61
  62 struct strlist;
  63
  64 struct symbol_conf {
  65         unsigned short  priv_size;
  66         bool            try_vmlinux_path,
  67                         use_modules,
  68                         sort_by_name,
  69                         show_nr_samples,
  70                         use_callchain,
  71                         exclude_other,
  72                         full_paths;
  73         const char      *vmlinux_name,
  74                         *field_sep;
  75         char            *dso_list_str,
  76                         *comm_list_str,
  77                         *sym_list_str,
  78                         *col_width_list_str;
  79        struct strlist   *dso_list,
  80                         *comm_list,
  81                         *sym_list;
  82 };
  83
  84 extern struct symbol_conf symbol_conf;
  85
  86 static inline void *symbol__priv(struct symbol *self)
  87 {
  88         return ((void *)self) - symbol_conf.priv_size;
  89 }
  90
  91 struct ref_reloc_sym {
  92         const char      *name;
  93         u64             addr;
  94         u64             unrelocated_addr;
  95 };
  96
  97 struct map_symbol {
  98         struct map    *map;
  99         struct symbol *sym;
 100 };
 101
 102 struct addr_location {
 103         struct thread *thread;
 104         struct map    *map;
 105         struct symbol *sym;
 106         u64           addr;
 107         char          level;
 108         bool          filtered;
 109 };
 110
 111 struct dso {
 112         struct list_head node;
 113         struct rb_root   symbols[MAP__NR_TYPES];
 114         struct rb_root   symbol_names[MAP__NR_TYPES];
 115         u8               adjust_symbols:1;
 116         u8               slen_calculated:1;
 117         u8               has_build_id:1;
 118         u8               kernel:1;
 119         u8               hit:1;
 120         u8               annotate_warned:1;
 121         unsigned char    origin;
 122         u8               sorted_by_name;
 123         u8               loaded;
 124         u8               build_id[BUILD_ID_SIZE];
 125         const char       *short_name;
 126         char             *long_name;
 127         u16              long_name_len;
 128         u16              short_name_len;
 129         char             name[0];
 130 };
 131
 132 struct dso *dso__new(const char *name);
 133 struct dso *dso__new_kernel(const char *name);
 134 void dso__delete(struct dso *self);
 135
 136 bool dso__loaded(const struct dso *self, enum map_type type);
 137 bool dso__sorted_by_name(const struct dso *self, enum map_type type);
 138
 139 static inline void dso__set_loaded(struct dso *self, enum map_type type)
 140 {
 141         self->loaded |= (1 << type);
 142 }
 143
 144 void dso__sort_by_name(struct dso *self, enum map_type type);
 145
 146 extern struct list_head dsos__user, dsos__kernel;
 147
 148 struct dso *__dsos__findnew(struct list_head *head, const char *name);
 149
 150 static inline struct dso *dsos__findnew(const char *name)
 151 {
 152         return __dsos__findnew(&dsos__user, name);
 153 }
 154
 155 int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
 156 int dso__load_vmlinux_path(struct dso *self, struct map *map,
 157                            symbol_filter_t filter);
 158 int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map,
 159                        symbol_filter_t filter);
 160 void dsos__fprintf(FILE *fp);
 161 size_t dsos__fprintf_buildid(FILE *fp, bool with_hits);
 162
 163 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
 164 size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
 165
 166 enum dso_origin {
 167         DSO__ORIG_KERNEL = 0,
 168         DSO__ORIG_JAVA_JIT,
 169         DSO__ORIG_BUILD_ID_CACHE,
 170         DSO__ORIG_FEDORA,
 171         DSO__ORIG_UBUNTU,
 172         DSO__ORIG_BUILDID,
 173         DSO__ORIG_DSO,
 174         DSO__ORIG_KMODULE,
 175         DSO__ORIG_NOT_FOUND,
 176 };
 177
 178 char dso__symtab_origin(const struct dso *self);
 179 void dso__set_long_name(struct dso *self, char *name);
 180 void dso__set_build_id(struct dso *self, void *build_id);
 181 void dso__read_running_kernel_build_id(struct dso *self);
 182 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
 183 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
 184                                         const char *name);
 185
 186 int filename__read_build_id(const char *filename, void *bf, size_t size);
 187 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
 188 bool dsos__read_build_ids(bool with_hits);
 189 int build_id__sprintf(const u8 *self, int len, char *bf);
 190 int kallsyms__parse(const char *filename, void *arg,
 191                     int (*process_symbol)(void *arg, const char *name,
 192                                           char type, u64 start));
 193
 194 int symbol__init(void);
 195 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
 196
 197 size_t vmlinux_path__fprintf(FILE *fp);
 198
 199 #endif /* __PERF_SYMBOL */