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 #ifdef HAVE_CPLUS_DEMANGLE
  12 extern char *cplus_demangle(const char *, int);
  13
  14 static inline char *bfd_demangle(void __used *v, const char *c, int i)
  15 {
  16         return cplus_demangle(c, i);
  17 }
  18 #else
  19 #ifdef NO_DEMANGLE
  20 static inline char *bfd_demangle(void __used *v, const char __used *c,
  21                                  int __used i)
  22 {
  23         return NULL;
  24 }
  25 #else
  26 #include <bfd.h>
  27 #endif
  28 #endif
  29
  30 /*
  31  * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
  32  * for newer versions we can use mmap to reduce memory usage:
  33  */
  34 #ifdef LIBELF_NO_MMAP
  35 # define PERF_ELF_C_READ_MMAP ELF_C_READ
  36 #else
  37 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
  38 #endif
  39
  40 #ifndef DMGL_PARAMS
  41 #define DMGL_PARAMS      (1 << 0)       /* Include function args */
  42 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
  43 #endif
  44
  45 struct symbol {
  46         struct rb_node  rb_node;
  47         u64             start;
  48         u64             end;
  49         char            name[0];
  50 };
  51
  52 struct strlist;
  53
  54 struct symbol_conf {
  55         unsigned short  priv_size;
  56         bool            try_vmlinux_path,
  57                         use_modules,
  58                         sort_by_name;
  59         const char      *vmlinux_name,
  60                         *field_sep;
  61         char            *dso_list_str,
  62                         *comm_list_str,
  63                         *sym_list_str,
  64                         *col_width_list_str;
  65        struct strlist   *dso_list,
  66                         *comm_list,
  67                         *sym_list;
  68 };
  69
  70 extern struct symbol_conf symbol_conf;
  71
  72 static inline void *symbol__priv(struct symbol *self)
  73 {
  74         return ((void *)self) - symbol_conf.priv_size;
  75 }
  76
  77 struct addr_location {
  78         struct thread *thread;
  79         struct map    *map;
  80         struct symbol *sym;
  81         u64           addr;
  82         char          level;
  83         bool          filtered;
  84 };
  85
  86 struct dso {
  87         struct list_head node;
  88         struct rb_root   symbols[MAP__NR_TYPES];
  89         struct rb_root   symbol_names[MAP__NR_TYPES];
  90         u8               adjust_symbols:1;
  91         u8               slen_calculated:1;
  92         u8               has_build_id:1;
  93         u8               kernel:1;
  94         unsigned char    origin;
  95         u8               sorted_by_name;
  96         u8               loaded;
  97         u8               build_id[BUILD_ID_SIZE];
  98         u16              long_name_len;
  99         const char       *short_name;
 100         char             *long_name;
 101         char             name[0];
 102 };
 103
 104 struct dso *dso__new(const char *name);
 105 void dso__delete(struct dso *self);
 106
 107 bool dso__loaded(const struct dso *self, enum map_type type);
 108 bool dso__sorted_by_name(const struct dso *self, enum map_type type);
 109
 110 void dso__sort_by_name(struct dso *self, enum map_type type);
 111
 112 struct perf_session;
 113
 114 struct dso *dsos__findnew(const char *name);
 115 int dso__load(struct dso *self, struct map *map, struct perf_session *session,
 116               symbol_filter_t filter);
 117 void dsos__fprintf(FILE *fp);
 118 size_t dsos__fprintf_buildid(FILE *fp);
 119
 120 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
 121 size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
 122 char dso__symtab_origin(const struct dso *self);
 123 void dso__set_build_id(struct dso *self, void *build_id);
 124 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
 125 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
 126                                         const char *name);
 127
 128 int filename__read_build_id(const char *filename, void *bf, size_t size);
 129 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
 130 bool dsos__read_build_ids(void);
 131 int build_id__sprintf(u8 *self, int len, char *bf);
 132
 133 int symbol__init(void);
 134 int perf_session__create_kernel_maps(struct perf_session *self);
 135
 136 extern struct list_head dsos__user, dsos__kernel;
 137 extern struct dso *vdso;
 138 #endif /* __PERF_SYMBOL */