74 	unsigned long lam;  member
145 static int set_lam(unsigned long lam)  in set_lam()  argument
150 	if (lam != LAM_U57_BITS && lam != LAM_NONE)  in set_lam()
154 	syscall(SYS_arch_prctl, ARCH_ENABLE_TAGGED_ADDR, lam);  in set_lam()
160 	if (lam == LAM_U57_BITS)  in set_lam()
162 	else if (lam == LAM_NONE)  in set_lam()
171 	int lam = LAM_NONE;  in get_default_tag_bits()  local
180 			lam = LAM_U57_BITS;  in get_default_tag_bits()
182 			lam = LAM_NONE;  in get_default_tag_bits()
183 		exit(lam);  in get_default_tag_bits()
186 		lam = WEXITSTATUS(ret);  in get_default_tag_bits()
189 	return lam;  in get_default_tag_bits()
215 static uint64_t set_metadata(uint64_t src, unsigned long lam)  in set_metadata()  argument
221 	switch (lam) {  in set_metadata()
243 static int handle_lam_test(void *src, unsigned int lam)  in handle_lam_test()  argument
249 	ptr = (char *)set_metadata((uint64_t)src, lam);  in handle_lam_test()
284 	if (test->later == 0 && test->lam != 0)  in handle_malloc()
285 		if (set_lam(test->lam) == -1)  in handle_malloc()
297 		ret = handle_lam_test(ptr, test->lam);  in handle_malloc()
302 	if (test->later != 0 && test->lam != 0)  in handle_malloc()
303 		if (set_lam(test->lam) == -1 && ret == 0)  in handle_malloc()
317 	if (test->later == 0 && test->lam != 0)  in handle_mmap()
318 		if (set_lam(test->lam) != 0)  in handle_mmap()
330 	if (test->later != 0 && test->lam != 0)  in handle_mmap()
331 		if (set_lam(test->lam) != 0)  in handle_mmap()
337 			ret = handle_lam_test(ptr, test->lam);  in handle_mmap()
352 	if (test->later == 0 && test->lam != 0)  in handle_syscall()
353 		if (set_lam(test->lam) != 0)  in handle_syscall()
358 		pu = (struct utsname *)set_metadata((uint64_t)&unme, test->lam);  in handle_syscall()
366 	if (test->later != 0 && test->lam != 0)  in handle_syscall()
367 		if (set_lam(test->lam) != -1 && ret == 0)  in handle_syscall()
505 int handle_uring_sq(struct io_ring *ring, struct file_io *fi, unsigned long lam)  in handle_uring_sq()  argument
527 		fi->iovecs[cur_block].iov_base = (void *)set_metadata((uint64_t)buf, lam);  in handle_uring_sq()
567 int do_uring(unsigned long lam)  in do_uring()  argument
607 	if (handle_uring_sq(ring, fi, lam))  in do_uring()
619 			switch (lam) {  in do_uring()
638 	if (test->later == 0 && test->lam != 0)  in handle_uring()
639 		if (set_lam(test->lam) != 0)  in handle_uring()
644 		ret = do_uring(test->lam);  in handle_uring()
675 	int lam = test->lam;  in handle_execve()  local
686 		if (set_lam(lam) != 0)  in handle_execve()
711 	int lam = test->lam;  in handle_inheritance()  local
715 	if (set_lam(lam) != 0)  in handle_inheritance()
731 		if (lam != ret)  in handle_inheritance()
747 	return set_lam(test->lam);  in thread_fn_set_lam()
754 	int lam = 0;  in handle_thread()  local
759 		lam = test->lam;  in handle_thread()
760 		if (set_lam(lam) != 0)  in handle_thread()
774 	if (lam != ret)  in handle_thread()
778 		if (set_lam(test->lam) != 0)  in handle_thread()
789 	int lam = test->lam;  in handle_thread_enable()  local
802 	if (lam != ret)  in handle_thread_enable()
836 		.lam = LAM_U57_BITS,
843 		.lam = LAM_U57_BITS,
852 		.lam = LAM_U57_BITS,
859 		.lam = LAM_U57_BITS,
875 		.lam = LAM_U57_BITS,
882 		.lam = LAM_U57_BITS,
892 		.lam = LAM_U57_BITS,
900 		.lam = LAM_U57_BITS,
908 		.lam = LAM_U57_BITS,
918 		.lam = LAM_U57_BITS,
924 		.lam = LAM_U57_BITS,
930 		.lam = LAM_U57_BITS,
937 		.lam = LAM_U57_BITS,
943 		.lam = LAM_U57_BITS,