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 extern unsigned int symbol__priv_size;
  53
  54 static inline void *symbol__priv(struct symbol *self)
  55 {
  56         return ((void *)self) - symbol__priv_size;
  57 }
  58
  59 struct dso {
  60         struct list_head node;
  61         struct rb_root   syms;
  62         struct symbol    *(*find_symbol)(struct dso *, u64 ip);
  63         u8               adjust_symbols:1;
  64         u8               slen_calculated:1;
  65         u8               loaded:1;
  66         u8               has_build_id:1;
  67         unsigned char    origin;
  68         u8               build_id[BUILD_ID_SIZE];
  69         u16              long_name_len;
  70         const char       *short_name;
  71         char             *long_name;
  72         char             name[0];
  73 };
  74
  75 struct dso *dso__new(const char *name);
  76 void dso__delete(struct dso *self);
  77
  78 struct symbol *dso__find_symbol(struct dso *self, u64 ip);
  79
  80 int dsos__load_modules(void);
  81 int dsos__load_modules_sym(symbol_filter_t filter);
  82 struct dso *dsos__findnew(const char *name);
  83 int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
  84 int dso__load_kernel_sym(struct dso *self, symbol_filter_t filter,
  85                          int use_modules);
  86 void dsos__fprintf(FILE *fp);
  87 size_t dsos__fprintf_buildid(FILE *fp);
  88
  89 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
  90 size_t dso__fprintf(struct dso *self, FILE *fp);
  91 char dso__symtab_origin(const struct dso *self);
  92 void dso__set_build_id(struct dso *self, void *build_id);
  93
  94 int filename__read_build_id(const char *filename, void *bf, size_t size);
  95 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
  96 bool dsos__read_build_ids(void);
  97 int build_id__sprintf(u8 *self, int len, char *bf);
  98
  99 struct dso *dsos__load_kernel(void);
 100 int load_kernel(symbol_filter_t filter, bool use_modules);
 101
 102 void symbol__init(unsigned int priv_size);
 103
 104 extern struct list_head dsos;
 105 extern struct map *kernel_map;
 106 extern struct dso *vdso;
 107 extern const char *vmlinux_name;
 108 #endif /* __PERF_SYMBOL */