tools/perf/util/symbol.h

   1 #ifndef _PERF_SYMBOL_
   2 #define _PERF_SYMBOL_ 1
   3
   4 #include <linux/types.h>
   5 #include "types.h"
   6 #include <linux/list.h>
   7 #include <linux/rbtree.h>
   8 #include "module.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         u64             obj_start;
  50         u64             hist_sum;
  51         u64             *hist;
  52         struct module   *module;
  53         void            *priv;
  54         char            name[0];
  55 };
  56
  57 struct dso {
  58         struct list_head node;
  59         struct rb_root   syms;
  60         struct symbol    *(*find_symbol)(struct dso *, u64 ip);
  61         unsigned int     sym_priv_size;
  62         unsigned char    adjust_symbols;
  63         unsigned char    slen_calculated;
  64         unsigned char    origin;
  65         char             name[0];
  66 };
  67
  68 extern const char *sym_hist_filter;
  69
  70 typedef int (*symbol_filter_t)(struct dso *self, struct symbol *sym);
  71
  72 struct dso *dso__new(const char *name, unsigned int sym_priv_size);
  73 void dso__delete(struct dso *self);
  74
  75 static inline void *dso__sym_priv(struct dso *self, struct symbol *sym)
  76 {
  77         return ((void *)sym) - self->sym_priv_size;
  78 }
  79
  80 struct symbol *dso__find_symbol(struct dso *self, u64 ip);
  81
  82 int dso__load_kernel(struct dso *self, const char *vmlinux,
  83                      symbol_filter_t filter, int verbose, int modules);
  84 int dso__load_modules(struct dso *self, symbol_filter_t filter, int verbose);
  85 int dso__load(struct dso *self, symbol_filter_t filter, int verbose);
  86 struct dso *dsos__findnew(const char *name);
  87 void dsos__fprintf(FILE *fp);
  88
  89 size_t dso__fprintf(struct dso *self, FILE *fp);
  90 char dso__symtab_origin(const struct dso *self);
  91
  92 int load_kernel(void);
  93
  94 void symbol__init(void);
  95
  96 extern struct list_head dsos;
  97 extern struct dso *kernel_dso;
  98 extern struct dso *vdso;
  99 extern struct dso *hypervisor_dso;
 100 extern const char *vmlinux_name;
 101 extern int   modules;
 102 #endif /* _PERF_SYMBOL_ */