1/* Return codes: 1 - ok, 0 - ignore, other - error. */
2static int
3arch_get_scno(struct tcb *tcp)
4{
5	kernel_ulong_t scno = 0;
6
7	switch (aarch64_io.iov_len) {
8		case sizeof(aarch64_regs):
9			/* We are in 64-bit mode */
10			scno = aarch64_regs.regs[8];
11			break;
12		case sizeof(arm_regs):
13			/* We are in 32-bit mode */
14			/* Note: we don't support OABI, unlike 32-bit ARM build */
15			scno = arm_regs.ARM_r7;
16			break;
17	}
18
19	tcp->scno = scno;
20	return 1;
21}
22