Dmitry V. Levin
92e347b556
We do our best to keep copyright headers up to date, yet git history provides better information on this subject and is more accurate than copyright headers.
29 lines
581 B
C
29 lines
581 B
C
/*
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* Copyright (c) 2015-2018 The strace developers.
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* All rights reserved.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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/* Return codes: 1 - ok, 0 - ignore, other - error. */
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static int
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arch_get_scno(struct tcb *tcp)
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{
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kernel_ulong_t scno = 0;
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switch (aarch64_io.iov_len) {
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case sizeof(aarch64_regs):
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/* We are in 64-bit mode */
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scno = aarch64_regs.regs[8];
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break;
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case sizeof(arm_regs):
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/* We are in 32-bit mode */
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/* Note: we don't support OABI, unlike 32-bit ARM build */
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scno = arm_regs.ARM_r7;
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break;
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}
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tcp->scno = scno;
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return 1;
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}
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