835607d497
Add serialization of the fd array when checkpointing in SE mode. With this patch, host backed files are restored. Further work needs to be done for restoring other types of file descriptor. As the file path saved is relative, on restoration of the checkpoint, it may fail to open the file if the path is no longer valid. If it cannot open the file, it will exit the simulation with a meaningful error message. Change-Id: I4d0c7cd614a8abaffcae9aba1a28c9fdbc023c5a Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/46619 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
/*
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* Copyright (c) 2016 Advanced Micro Devices, Inc.
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* All rights reserved.
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*
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* For use for simulation and test purposes only
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sim/fd_entry.hh"
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#include "sim/serialize.hh"
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void
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FDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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}
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void
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FDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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}
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void
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FileFDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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SERIALIZE_SCALAR(_flags);
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SERIALIZE_SCALAR(_fileName);
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SERIALIZE_SCALAR(_fileOffset);
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SERIALIZE_SCALAR(_mode);
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}
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void
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FileFDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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UNSERIALIZE_SCALAR(_flags);
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UNSERIALIZE_SCALAR(_fileName);
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UNSERIALIZE_SCALAR(_fileOffset);
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UNSERIALIZE_SCALAR(_mode);
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}
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void
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PipeFDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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SERIALIZE_SCALAR(_flags);
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//SERIALIZE_SCALAR(_pipeEndType);
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}
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void
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PipeFDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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UNSERIALIZE_SCALAR(_flags);
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//UNSERIALIZE_SCALAR(_pipeEndType);
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}
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void
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DeviceFDEntry::serialize(CheckpointOut &cp) const
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{
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SERIALIZE_SCALAR(_closeOnExec);
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//SERIALIZE_SCALAR(_driver);
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SERIALIZE_SCALAR(_fileName);
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}
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void
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DeviceFDEntry::unserialize(CheckpointIn &cp)
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{
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UNSERIALIZE_SCALAR(_closeOnExec);
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//UNSERIALIZE_SCALAR(_driver);
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UNSERIALIZE_SCALAR(_fileName);
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}
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