tools/perf/util/unwind.h

   1 #ifndef __UNWIND_H
   2 #define __UNWIND_H
   3
   4 #include <linux/types.h>
   5 #include "event.h"
   6 #include "symbol.h"
   7
   8 struct unwind_entry {
   9         struct map      *map;
  10         struct symbol   *sym;
  11         u64             ip;
  12 };
  13
  14 typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
  15
  16 #ifdef HAVE_DWARF_UNWIND_SUPPORT
  17 int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
  18                         struct machine *machine,
  19                         struct thread *thread,
  20                         struct perf_sample *data, int max_stack);
  21 /* libunwind specific */
  22 #ifdef HAVE_LIBUNWIND_SUPPORT
  23 int libunwind__arch_reg_id(int regnum);
  24 #endif
  25 #else
  26 static inline int
  27 unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
  28                     void *arg __maybe_unused,
  29                     struct machine *machine __maybe_unused,
  30                     struct thread *thread __maybe_unused,
  31                     struct perf_sample *data __maybe_unused,
  32                     int max_stack __maybe_unused)
  33 {
  34         return 0;
  35 }
  36 #endif /* HAVE_DWARF_UNWIND_SUPPORT */
  37 #endif /* __UNWIND_H */