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.
26 lines
648 B
C
26 lines
648 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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#include "negated_errno.h"
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static void
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arch_get_error(struct tcb *tcp, const bool check_errno)
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{
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/*
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* The standard tile calling convention returns the value
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* (or negative errno) in r0, and zero (or positive errno) in r1.
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* Until at least kernel 3.8, however, the r1 value is not
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* reflected in ptregs at this point, so we use r0 here.
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*/
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if (check_errno && is_negated_errno(tile_regs.regs[0])) {
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tcp->u_rval = -1;
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tcp->u_error = -tile_regs.regs[0];
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} else {
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tcp->u_rval = tile_regs.regs[0];
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}
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}
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