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45a794bf7c
This allows us to provide a minimal errno.h to ease porting applications that use it. Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
27 lines
618 B
C
27 lines
618 B
C
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
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/*
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* Minimal errno definitions for NOLIBC
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* Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu>
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*/
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#ifndef _NOLIBC_ERRNO_H
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#define _NOLIBC_ERRNO_H
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#include <asm/errno.h>
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/* this way it will be removed if unused */
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static int errno;
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#ifndef NOLIBC_IGNORE_ERRNO
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#define SET_ERRNO(v) do { errno = (v); } while (0)
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#else
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#define SET_ERRNO(v) do { } while (0)
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#endif
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/* errno codes all ensure that they will not conflict with a valid pointer
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* because they all correspond to the highest addressable memory page.
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*/
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#define MAX_ERRNO 4095
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#endif /* _NOLIBC_ERRNO_H */
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