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/*
* Copyright (c) 2015-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
/* Return codes: 1 - ok, 0 - ignore, other - error. */
static int
arch_get_scno(struct tcb *tcp)
{
kernel_ulong_t scno = 0;
switch (aarch64_io.iov_len) {
case sizeof(aarch64_regs):
/* We are in 64-bit mode */
scno = aarch64_regs.regs[8];
break;
case sizeof(arm_regs):
/* We are in 32-bit mode */
/* Note: we don't support OABI, unlike 32-bit ARM build */
scno = arm_regs.ARM_r7;
break;
}
tcp->scno = scno;
return 1;
}
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