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 */ 38