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                         show_nr_samples,
  60                         use_callchain,
  61                         exclude_other;
  62         const char      *vmlinux_name,
  63                         *field_sep;
  64         char            *dso_list_str,
  65                         *comm_list_str,
  66                         *sym_list_str,
  67                         *col_width_list_str;
  68        struct strlist   *dso_list,
  69                         *comm_list,
  70                         *sym_list;
  71 };
  72
  73 extern struct symbol_conf symbol_conf;
  74
  75 static inline void *symbol__priv(struct symbol *self)
  76 {
  77         return ((void *)self) - symbol_conf.priv_size;
  78 }
  79
  80 struct addr_location {
  81         struct thread *thread;
  82         struct map    *map;
  83         struct symbol *sym;
  84         u64           addr;
  85         char          level;
  86         bool          filtered;
  87 };
  88
  89 struct dso {
  90         struct list_head node;
  91         struct rb_root   symbols[MAP__NR_TYPES];
  92         struct rb_root   symbol_names[MAP__NR_TYPES];
  93         u8               adjust_symbols:1;
  94         u8               slen_calculated:1;
  95         u8               has_build_id:1;
  96         u8               kernel:1;
  97         unsigned char    origin;
  98         u8               sorted_by_name;
  99         u8               loaded;
 100         u8               build_id[BUILD_ID_SIZE];
 101         u16              long_name_len;
 102         const char       *short_name;
 103         char             *long_name;
 104         char             name[0];
 105 };
 106
 107 struct dso *dso__new(const char *name);
 108 void dso__delete(struct dso *self);
 109
 110 bool dso__loaded(const struct dso *self, enum map_type type);
 111 bool dso__sorted_by_name(const struct dso *self, enum map_type type);
 112
 113 void dso__sort_by_name(struct dso *self, enum map_type type);
 114
 115 struct perf_session;
 116
 117 struct dso *dsos__findnew(const char *name);
 118 int dso__load(struct dso *self, struct map *map, struct perf_session *session,
 119               symbol_filter_t filter);
 120 void dsos__fprintf(FILE *fp);
 121 size_t dsos__fprintf_buildid(FILE *fp);
 122
 123 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
 124 size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
 125 char dso__symtab_origin(const struct dso *self);
 126 void dso__set_build_id(struct dso *self, void *build_id);
 127 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
 128 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
 129                                         const char *name);
 130
 131 int filename__read_build_id(const char *filename, void *bf, size_t size);
 132 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
 133 bool dsos__read_build_ids(void);
 134 int build_id__sprintf(u8 *self, int len, char *bf);
 135
 136 int symbol__init(void);
 137 int perf_session__create_kernel_maps(struct perf_session *self);
 138
 139 extern struct list_head dsos__user, dsos__kernel;
 140 extern struct dso *vdso;
 141 #endif /* __PERF_SYMBOL */