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 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 int unwind__prepare_access(struct thread *thread); 25 void unwind__flush_access(struct thread *thread); 26 void unwind__finish_access(struct thread *thread); 27 #else 28 static inline int unwind__prepare_access(struct thread *thread __maybe_unused) 29 { 30 return 0; 31 } 32 33 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {} 34 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {} 35 #endif 36 #else 37 static inline int 38 unwind__get_entries(unwind_entry_cb_t cb __maybe_unused, 39 void *arg __maybe_unused, 40 struct thread *thread __maybe_unused, 41 struct perf_sample *data __maybe_unused, 42 int max_stack __maybe_unused) 43 { 44 return 0; 45 } 46 47 static inline int unwind__prepare_access(struct thread *thread __maybe_unused) 48 { 49 return 0; 50 } 51 52 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {} 53 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {} 54 #endif /* HAVE_DWARF_UNWIND_SUPPORT */ 55 #endif /* __UNWIND_H */ 56