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 symbol_conf {
  53         unsigned short  priv_size;
  54         bool            try_vmlinux_path,
  55                         use_modules,
  56                         sort_by_name;
  57         const char      *vmlinux_name;
  58 };
  59
  60 extern struct symbol_conf symbol_conf;
  61
  62 static inline void *symbol__priv(struct symbol *self)
  63 {
  64         return ((void *)self) - symbol_conf.priv_size;
  65 }
  66
  67 struct addr_location {
  68         struct thread *thread;
  69         struct map    *map;
  70         struct symbol *sym;
  71         u64           addr;
  72         char          level;
  73 };
  74
  75 struct dso {
  76         struct list_head node;
  77         struct rb_root   symbols[MAP__NR_TYPES];
  78         struct rb_root   symbol_names[MAP__NR_TYPES];
  79         u8               adjust_symbols:1;
  80         u8               slen_calculated:1;
  81         u8               has_build_id:1;
  82         u8               kernel:1;
  83         unsigned char    origin;
  84         u8               sorted_by_name;
  85         u8               loaded;
  86         u8               build_id[BUILD_ID_SIZE];
  87         u16              long_name_len;
  88         const char       *short_name;
  89         char             *long_name;
  90         char             name[0];
  91 };
  92
  93 struct dso *dso__new(const char *name);
  94 void dso__delete(struct dso *self);
  95
  96 bool dso__loaded(const struct dso *self, enum map_type type);
  97 bool dso__sorted_by_name(const struct dso *self, enum map_type type);
  98
  99 void dso__sort_by_name(struct dso *self, enum map_type type);
 100
 101 struct perf_session;
 102
 103 struct dso *dsos__findnew(const char *name);
 104 int dso__load(struct dso *self, struct map *map, struct perf_session *session,
 105               symbol_filter_t filter);
 106 void dsos__fprintf(FILE *fp);
 107 size_t dsos__fprintf_buildid(FILE *fp);
 108
 109 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
 110 size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
 111 char dso__symtab_origin(const struct dso *self);
 112 void dso__set_build_id(struct dso *self, void *build_id);
 113 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
 114 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
 115                                         const char *name);
 116
 117 int filename__read_build_id(const char *filename, void *bf, size_t size);
 118 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
 119 bool dsos__read_build_ids(void);
 120 int build_id__sprintf(u8 *self, int len, char *bf);
 121
 122 int symbol__init(void);
 123 int perf_session__create_kernel_maps(struct perf_session *self);
 124
 125 extern struct list_head dsos__user, dsos__kernel;
 126 extern struct dso *vdso;
 127 #endif /* __PERF_SYMBOL */