1 #ifndef __UNWIND_H 2 #define __UNWIND_H 3 4 #include <linux/types.h> 5 #include "event.h" 6 #include "symbol.h" 7 #include "thread.h" 8 9 struct unwind_entry { 10 struct map *map; 11 struct symbol *sym; 12 u64 ip; 13 }; 14 15 typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg); 16 17 #ifdef HAVE_DWARF_UNWIND_SUPPORT 18 int unwind__get_entries(unwind_entry_cb_t cb, void *arg, 19 struct machine *machine, 20 struct thread *thread, 21 struct perf_sample *data, int max_stack); 22 /* libunwind specific */ 23 #ifdef HAVE_LIBUNWIND_SUPPORT 24 int libunwind__arch_reg_id(int regnum); 25 int unwind__prepare_access(struct thread *thread); 26 void unwind__flush_access(struct thread *thread); 27 void unwind__finish_access(struct thread *thread); 28 #else 29 static inline int unwind__prepare_access(struct thread *thread __maybe_unused) 30 { 31 return 0; 32 } 33 34 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {} 35 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {} 36 #endif 37 #else 38 static inline int 39 unwind__get_entries(unwind_entry_cb_t cb __maybe_unused, 40 void *arg __maybe_unused, 41 struct machine *machine __maybe_unused, 42 struct thread *thread __maybe_unused, 43 struct perf_sample *data __maybe_unused, 44 int max_stack __maybe_unused) 45 { 46 return 0; 47 } 48 49 static inline int unwind__prepare_access(struct thread *thread __maybe_unused) 50 { 51 return 0; 52 } 53 54 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {} 55 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {} 56 #endif /* HAVE_DWARF_UNWIND_SUPPORT */ 57 #endif /* __UNWIND_H */ 58