1/* Return -1 on error or 1 on success (never 0!). */
2static int
3get_syscall_args(struct tcb *tcp)
4{
5	static const int argreg[MAX_ARGS] =
6		{ PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5 };
7	unsigned int i;
8
9	for (i = 0; i < tcp->s_ent->nargs; ++i)
10		if (upeek(tcp->pid, argreg[i], &tcp->u_arg[i]) < 0)
11			return -1;
12	return 1;
13}
14