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32 lines
867 B
32 lines
867 B
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* QEMU internal errno values for implementing user-only POSIX.
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2021 Linaro, Ltd.
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*/
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#ifndef SPECIAL_ERRNO_H
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#define SPECIAL_ERRNO_H
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/*
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* All of these are QEMU internal, not visible to the guest.
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* They should be chosen so as to not overlap with any host
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* or guest errno.
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*/
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/*
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* This is returned when a system call should be restarted, to tell the
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* main loop that it should wind the guest PC backwards so it will
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* re-execute the syscall after handling any pending signals.
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*/
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#define QEMU_ERESTARTSYS 512
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/*
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* This is returned after a successful sigreturn syscall, to indicate
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* that it has correctly set the guest registers and so the main loop
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* should not touch them.
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*/
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#define QEMU_ESIGRETURN 513
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#endif /* SPECIAL_ERRNO_H */
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