diff -rup a/sysdeps/linux-gnu/aarch64/fetch.c b/sysdeps/linux-gnu/aarch64/fetch.c

--- a/sysdeps/linux-gnu/aarch64/fetch.c	2018-07-05 16:06:04.697642086 -0400

+++ b/sysdeps/linux-gnu/aarch64/fetch.c	2018-07-05 16:16:19.366905601 -0400

@@ -308,12 +308,9 @@ arch_fetch_arg_init(enum tof type, struc

 	struct fetch_script how = pass_arg(context, proc, ret_info);

 	if (how.c == CVT_ERR)

 		goto fail;

-	if (how.c == CVT_NOP && how.f == FETCH_STACK) {

+	if (how.c == CVT_BYREF && how.f == FETCH_GPR) {

 		/* XXX double cast.  */

 		context->x8 = (arch_addr_t) (uintptr_t) context->gregs.regs[8];

-		/* See the comment above about the assert.  */

-		assert(! "Unexpected: first argument passed on stack.");

-		abort();

 	}

 	return context;