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 #define DEBUG_CACHE_DIR ".debug"
  12
  13 #ifdef HAVE_CPLUS_DEMANGLE
  14 extern char *cplus_demangle(const char *, int);
  15
  16 static inline char *bfd_demangle(void __used *v, const char *c, int i)
  17 {
  18         return cplus_demangle(c, i);
  19 }
  20 #else
  21 #ifdef NO_DEMANGLE
  22 static inline char *bfd_demangle(void __used *v, const char __used *c,
  23                                  int __used i)
  24 {
  25         return NULL;
  26 }
  27 #else
  28 #include <bfd.h>
  29 #endif
  30 #endif
  31
  32 /*
  33  * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
  34  * for newer versions we can use mmap to reduce memory usage:
  35  */
  36 #ifdef LIBELF_NO_MMAP
  37 # define PERF_ELF_C_READ_MMAP ELF_C_READ
  38 #else
  39 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
  40 #endif
  41
  42 #ifndef DMGL_PARAMS
  43 #define DMGL_PARAMS      (1 << 0)       /* Include function args */
  44 #define DMGL_ANSI        (1 << 1)       /* Include const, volatile, etc */
  45 #endif
  46
  47 struct symbol {
  48         struct rb_node  rb_node;
  49         u64             start;
  50         u64             end;
  51         char            name[0];
  52 };
  53
  54 struct strlist;
  55
  56 struct symbol_conf {
  57         unsigned short  priv_size;
  58         bool            try_vmlinux_path,
  59                         use_modules,
  60                         sort_by_name,
  61                         show_nr_samples,
  62                         use_callchain,
  63                         exclude_other,
  64                         full_paths;
  65         const char      *vmlinux_name,
  66                         *field_sep;
  67         char            *dso_list_str,
  68                         *comm_list_str,
  69                         *sym_list_str,
  70                         *col_width_list_str;
  71        struct strlist   *dso_list,
  72                         *comm_list,
  73                         *sym_list;
  74 };
  75
  76 extern struct symbol_conf symbol_conf;
  77
  78 static inline void *symbol__priv(struct symbol *self)
  79 {
  80         return ((void *)self) - symbol_conf.priv_size;
  81 }
  82
  83 struct addr_location {
  84         struct thread *thread;
  85         struct map    *map;
  86         struct symbol *sym;
  87         u64           addr;
  88         char          level;
  89         bool          filtered;
  90 };
  91
  92 struct dso {
  93         struct list_head node;
  94         struct rb_root   symbols[MAP__NR_TYPES];
  95         struct rb_root   symbol_names[MAP__NR_TYPES];
  96         u8               adjust_symbols:1;
  97         u8               slen_calculated:1;
  98         u8               has_build_id:1;
  99         u8               kernel:1;
 100         unsigned char    origin;
 101         u8               sorted_by_name;
 102         u8               loaded;
 103         u8               build_id[BUILD_ID_SIZE];
 104         u16              long_name_len;
 105         const char       *short_name;
 106         char             *long_name;
 107         char             name[0];
 108 };
 109
 110 struct dso *dso__new(const char *name);
 111 void dso__delete(struct dso *self);
 112
 113 bool dso__loaded(const struct dso *self, enum map_type type);
 114 bool dso__sorted_by_name(const struct dso *self, enum map_type type);
 115
 116 void dso__sort_by_name(struct dso *self, enum map_type type);
 117
 118 struct perf_session;
 119
 120 struct dso *dsos__findnew(const char *name);
 121 int dso__load(struct dso *self, struct map *map, struct perf_session *session,
 122               symbol_filter_t filter);
 123 void dsos__fprintf(FILE *fp);
 124 size_t dsos__fprintf_buildid(FILE *fp);
 125
 126 size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
 127 size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
 128 char dso__symtab_origin(const struct dso *self);
 129 void dso__set_build_id(struct dso *self, void *build_id);
 130 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
 131 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
 132                                         const char *name);
 133
 134 int filename__read_build_id(const char *filename, void *bf, size_t size);
 135 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
 136 bool dsos__read_build_ids(void);
 137 int build_id__sprintf(u8 *self, int len, char *bf);
 138 int kallsyms__parse(void *arg, int (*process_symbol)(void *arg, const char *name,
 139                                                      char type, u64 start));
 140
 141 int symbol__init(void);
 142 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
 143
 144 int perf_session__create_kernel_maps(struct perf_session *self);
 145
 146 extern struct list_head dsos__user, dsos__kernel;
 147 extern struct dso *vdso;
 148 #endif /* __PERF_SYMBOL */