Dmitry V. Levin
d6c71dd061
Indent the C preprocessor directives to reflect their nesting using the following script: $ cppi -l $(git grep -El '^[[:space:]]*#[[:space:]]*(if|ifdef|ifndef|elif|else|endif|define|pragma)[[:space:]]' |grep -v '\.sh$') |while read f; do cppi < "$f" > "$f".cppi; mv "$f".cppi "$f" done
32 lines
730 B
C
32 lines
730 B
C
/*
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* Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2017-2018 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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#ifndef STRACE_NEGATED_ERRNO_H
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# define STRACE_NEGATED_ERRNO_H
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/*
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* Check the syscall return value register value for whether it is
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* a negated errno code indicating an error, or a success return value.
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*/
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static inline bool
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is_negated_errno(kernel_ulong_t val)
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{
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kernel_ulong_t max = -(kernel_long_t) MAX_ERRNO_VALUE;
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# ifndef current_klongsize
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if (current_klongsize < sizeof(val)) {
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val = (uint32_t) val;
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max = (uint32_t) max;
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}
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# endif /* !current_klongsize */
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return val >= max;
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}
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#endif /* !STRACE_NEGATED_ERRNO_H */
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