37 	uintptr_t return_addr;
40 static inline uintptr_t extract_address(uintptr_t address)  in extract_address()
42 	uintptr_t ret = address;  in extract_address()
62 static bool is_address_readable(uintptr_t address)  in is_address_readable()
65 	uintptr_t addr = extract_address(address);  in is_address_readable()
84 static bool is_address_readable(uintptr_t addr)  in is_address_readable()
110 static bool is_valid_object(uintptr_t addr, size_t size)  in is_valid_object()
122 	if ((addr & (sizeof(uintptr_t) - 1U)) != 0U)  in is_valid_object()
138 static bool is_valid_jump_address(uintptr_t addr)  in is_valid_jump_address()
158 	return is_valid_object((uintptr_t)fr, sizeof(struct frame_record));  in is_valid_frame_record()
170 	return (struct frame_record *)((uintptr_t)fr - 4U);  in adjust_frame_record()
174 static void unwind_stack(struct frame_record *fr, uintptr_t current_pc,  in unwind_stack()
175 			 uintptr_t link_register)  in unwind_stack()
177 	uintptr_t call_site;  in unwind_stack()
253 	uintptr_t return_address = (uintptr_t)__builtin_return_address(0U);  in backtrace()
263 	unwind_stack(fr, (uintptr_t)&backtrace, return_address);  in backtrace()