2,3c2,3
< * Copyright (c) 2015 Advanced Micro Devices, Inc.
< * Copyright (c) 2001-2005 The Regents of The University of Michigan
---
> * Copyright (c) 2016 Advanced Micro Devices, Inc.
> * All rights reserved.
4a5,6
> * For use for simulation and test purposes only
> *
6,14c8
< * modification, are permitted provided that the following conditions are
< * met: redistributions of source code must retain the above copyright
< * notice, this list of conditions and the following disclaimer;
< * redistributions in binary form must reproduce the above copyright
< * notice, this list of conditions and the following disclaimer in the
< * documentation and/or other materials provided with the distribution;
< * neither the name of the copyright holders nor the names of its
< * contributors may be used to endorse or promote products derived from
< * this software without specific prior written permission.
---
> * modification, are permitted provided that the following conditions are met:
16,26c10,11
< * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
< * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
< * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
< * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
< * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
< * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
< * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
< * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
< * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
< * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
< * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---
> * 1. Redistributions of source code must retain the above copyright notice,
> * this list of conditions and the following disclaimer.
28,29c13,33
< * Authors: Nathan Binkert
< * Steve Reinhardt
---
> * 2. Redistributions in binary form must reproduce the above copyright notice,
> * this list of conditions and the following disclaimer in the documentation
> * and/or other materials provided with the distribution.
> *
> * 3. Neither the name of the copyright holder nor the names of its
> * contributors may be used to endorse or promote products derived from this
> * software without specific prior written permission.
> *
> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
> * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
> * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
> * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
> * POSSIBILITY OF SUCH DAMAGE.
> *
> * Author: Brandon Potter
34a39
> #include <memory>
43,47c48,49
< * FDEntry is used to manage a single file descriptor mapping and metadata
< * for processes.
< * Note that the fields are all declared publicly since system calls have a
< * habit of only needing to access a single field at a time and accessor
< * methods seem like overkill.
---
> * Holds a single file descriptor mapping and that mapping's data for
> * processes running in syscall emulation mode.
52,58c54,55
< /**
< * Constructor contains default values
< * The file descriptor is free.
< */
< FDEntry()
< : fd(-1), mode(0), flags(0), isPipe(false), readPipeSource(0),
< fileOffset(0), filename(""), driver(NULL)
---
> FDEntry(bool close_on_exec = false)
> : _closeOnExec(close_on_exec)
60a58,127
> virtual std::shared_ptr<FDEntry> clone() const = 0;
>
> inline bool getCOE() const { return _closeOnExec; }
>
> inline void setCOE(bool close_on_exec) { _closeOnExec = close_on_exec; }
>
> virtual void serialize(CheckpointOut &cp) const;
> virtual void unserialize(CheckpointIn &cp);
>
> protected:
> bool _closeOnExec;
> };
>
> /**
> * Extends the base class to include a host-backed file descriptor field
> * that records the integer used to represent the file descriptor on the host
> * and the file's flags.
> */
> class HBFDEntry: public FDEntry
> {
> public:
> HBFDEntry(int flags, int sim_fd, bool close_on_exec = false)
> : FDEntry(close_on_exec), _flags(flags), _simFD(sim_fd)
> { }
>
> inline int getFlags() const { return _flags; }
> inline int getSimFD() const { return _simFD; }
>
> inline void setFlags(int flags) { _flags = flags; }
> inline void setSimFD(int sim_fd) { _simFD = sim_fd; }
>
> protected:
> int _flags;
> int _simFD;
> };
>
> /**
> * Holds file descriptors for host-backed files; host-backed files are
> * files which were opened on the physical machine where the simulation
> * is running (probably the thing on/under your desk). All regular files
> * are redirected to make it appear that the file descriptor assignment
> * starts at file descriptor '3' (not including stdin, stdout, stderr) and
> * then grows upward.
> */
> class FileFDEntry: public HBFDEntry
> {
> public:
> FileFDEntry(int sim_fd, int flags, std::string const& file_name,
> uint64_t file_offset, bool close_on_exec = false)
> : HBFDEntry(flags, sim_fd, close_on_exec),
> _fileName(file_name), _fileOffset(file_offset)
> { }
>
> FileFDEntry(FileFDEntry const& reg, bool close_on_exec = false)
> : HBFDEntry(reg._flags, reg._simFD, close_on_exec),
> _fileName(reg._fileName), _fileOffset(reg._fileOffset)
> { }
>
> inline std::shared_ptr<FDEntry>
> clone() const override
> {
> return std::make_shared<FileFDEntry>(*this);
> }
>
> inline std::string getFileName() const { return _fileName; }
> inline uint64_t getFileOffset() const { return _fileOffset; }
>
> inline void setFileName(std::string file_name) { _fileName = file_name; }
> inline void setFileOffset (uint64_t f_off) { _fileOffset = f_off; }
>
64,68c131,134
< /**
< * Check if the target file descriptor is in use.
< * @return value denoting if target file descriptor already used
< */
< bool isFree();
---
> private:
> std::string _fileName;
> uint64_t _fileOffset;
> };
70,79c136,146
< /**
< * Fill in members for this file descriptor entry.
< * @param sim_fd host file descriptor
< * @param name filename string
< * @param flags current flags of the file descriptor
< * @param mode current mode of the file descriptor
< * @param pipe denotes whether the file descriptor belongs to a pipe
< */
< void set(int sim_fd, const std::string name, int flags, int mode,
< bool pipe);
---
> /**
> * Holds the metadata needed to maintain the mappings for file descriptors
> * allocated with the pipe() system calls and its variants.
> */
> class PipeFDEntry: public HBFDEntry
> {
> public:
> enum EndType {
> read = 0,
> write = 1
> };
81,82c148,152
< /** Reset members to their default values. */
< void reset();
---
> PipeFDEntry(int sim_fd, int flags, EndType pipe_end_type,
> bool close_on_exec = false)
> : HBFDEntry(flags, sim_fd, close_on_exec), _pipeReadSource(-1),
> _pipeEndType(pipe_end_type)
> { }
84,91c154,177
< int fd;
< int mode;
< int flags;
< bool isPipe;
< int readPipeSource;
< uint64_t fileOffset;
< std::string filename;
< EmulatedDriver *driver;
---
> PipeFDEntry(PipeFDEntry const& pipe, bool close_on_exec = false)
> : HBFDEntry(pipe._flags, pipe._simFD, close_on_exec),
> _pipeReadSource(pipe._pipeReadSource),
> _pipeEndType(pipe._pipeEndType)
> { }
>
> inline std::shared_ptr<FDEntry>
> clone() const override
> {
> return std::make_shared<PipeFDEntry>(*this);
> }
>
> inline EndType getEndType() const { return _pipeEndType; }
> inline int getPipeReadSource() const { return _pipeReadSource; }
>
> inline void setPipeReadSource(int tgt_fd) { _pipeReadSource = tgt_fd; }
> inline void setEndType(EndType type) { _pipeEndType = type; }
>
> void serialize(CheckpointOut &cp) const override;
> void unserialize(CheckpointIn &cp) override;
>
> private:
> int _pipeReadSource;
> EndType _pipeEndType;
93a180,213
> /**
> * Holds file descriptors needed to simulate devices opened with pseudo
> * files (commonly with calls to ioctls).
> */
> class DeviceFDEntry : public FDEntry
> {
> public:
> DeviceFDEntry(EmulatedDriver *driver, std::string const& file_name,
> bool close_on_exec = false)
> : FDEntry(close_on_exec), _driver(driver), _fileName(file_name)
> { }
>
> DeviceFDEntry(DeviceFDEntry const& dev, bool close_on_exec = false)
> : FDEntry(close_on_exec), _driver(dev._driver),
> _fileName(dev._fileName)
> { }
>
> std::shared_ptr<FDEntry>
> clone() const override
> {
> return std::make_shared<DeviceFDEntry>(*this);
> }
>
> inline EmulatedDriver *getDriver() const { return _driver; }
> inline std::string getFileName() const { return _fileName; }
>
> void serialize(CheckpointOut &cp) const override;
> void unserialize(CheckpointIn &cp) override;
>
> private:
> EmulatedDriver *_driver;
> std::string _fileName;
> };
>
< * Copyright (c) 2015 Advanced Micro Devices, Inc.
< * Copyright (c) 2001-2005 The Regents of The University of Michigan
---
> * Copyright (c) 2016 Advanced Micro Devices, Inc.
> * All rights reserved.
4a5,6
> * For use for simulation and test purposes only
> *
6,14c8
< * modification, are permitted provided that the following conditions are
< * met: redistributions of source code must retain the above copyright
< * notice, this list of conditions and the following disclaimer;
< * redistributions in binary form must reproduce the above copyright
< * notice, this list of conditions and the following disclaimer in the
< * documentation and/or other materials provided with the distribution;
< * neither the name of the copyright holders nor the names of its
< * contributors may be used to endorse or promote products derived from
< * this software without specific prior written permission.
---
> * modification, are permitted provided that the following conditions are met:
16,26c10,11
< * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
< * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
< * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
< * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
< * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
< * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
< * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
< * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
< * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
< * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
< * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---
> * 1. Redistributions of source code must retain the above copyright notice,
> * this list of conditions and the following disclaimer.
28,29c13,33
< * Authors: Nathan Binkert
< * Steve Reinhardt
---
> * 2. Redistributions in binary form must reproduce the above copyright notice,
> * this list of conditions and the following disclaimer in the documentation
> * and/or other materials provided with the distribution.
> *
> * 3. Neither the name of the copyright holder nor the names of its
> * contributors may be used to endorse or promote products derived from this
> * software without specific prior written permission.
> *
> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
> * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
> * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
> * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
> * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
> * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
> * POSSIBILITY OF SUCH DAMAGE.
> *
> * Author: Brandon Potter
34a39
> #include <memory>
43,47c48,49
< * FDEntry is used to manage a single file descriptor mapping and metadata
< * for processes.
< * Note that the fields are all declared publicly since system calls have a
< * habit of only needing to access a single field at a time and accessor
< * methods seem like overkill.
---
> * Holds a single file descriptor mapping and that mapping's data for
> * processes running in syscall emulation mode.
52,58c54,55
< /**
< * Constructor contains default values
< * The file descriptor is free.
< */
< FDEntry()
< : fd(-1), mode(0), flags(0), isPipe(false), readPipeSource(0),
< fileOffset(0), filename(""), driver(NULL)
---
> FDEntry(bool close_on_exec = false)
> : _closeOnExec(close_on_exec)
60a58,127
> virtual std::shared_ptr<FDEntry> clone() const = 0;
>
> inline bool getCOE() const { return _closeOnExec; }
>
> inline void setCOE(bool close_on_exec) { _closeOnExec = close_on_exec; }
>
> virtual void serialize(CheckpointOut &cp) const;
> virtual void unserialize(CheckpointIn &cp);
>
> protected:
> bool _closeOnExec;
> };
>
> /**
> * Extends the base class to include a host-backed file descriptor field
> * that records the integer used to represent the file descriptor on the host
> * and the file's flags.
> */
> class HBFDEntry: public FDEntry
> {
> public:
> HBFDEntry(int flags, int sim_fd, bool close_on_exec = false)
> : FDEntry(close_on_exec), _flags(flags), _simFD(sim_fd)
> { }
>
> inline int getFlags() const { return _flags; }
> inline int getSimFD() const { return _simFD; }
>
> inline void setFlags(int flags) { _flags = flags; }
> inline void setSimFD(int sim_fd) { _simFD = sim_fd; }
>
> protected:
> int _flags;
> int _simFD;
> };
>
> /**
> * Holds file descriptors for host-backed files; host-backed files are
> * files which were opened on the physical machine where the simulation
> * is running (probably the thing on/under your desk). All regular files
> * are redirected to make it appear that the file descriptor assignment
> * starts at file descriptor '3' (not including stdin, stdout, stderr) and
> * then grows upward.
> */
> class FileFDEntry: public HBFDEntry
> {
> public:
> FileFDEntry(int sim_fd, int flags, std::string const& file_name,
> uint64_t file_offset, bool close_on_exec = false)
> : HBFDEntry(flags, sim_fd, close_on_exec),
> _fileName(file_name), _fileOffset(file_offset)
> { }
>
> FileFDEntry(FileFDEntry const& reg, bool close_on_exec = false)
> : HBFDEntry(reg._flags, reg._simFD, close_on_exec),
> _fileName(reg._fileName), _fileOffset(reg._fileOffset)
> { }
>
> inline std::shared_ptr<FDEntry>
> clone() const override
> {
> return std::make_shared<FileFDEntry>(*this);
> }
>
> inline std::string getFileName() const { return _fileName; }
> inline uint64_t getFileOffset() const { return _fileOffset; }
>
> inline void setFileName(std::string file_name) { _fileName = file_name; }
> inline void setFileOffset (uint64_t f_off) { _fileOffset = f_off; }
>
64,68c131,134
< /**
< * Check if the target file descriptor is in use.
< * @return value denoting if target file descriptor already used
< */
< bool isFree();
---
> private:
> std::string _fileName;
> uint64_t _fileOffset;
> };
70,79c136,146
< /**
< * Fill in members for this file descriptor entry.
< * @param sim_fd host file descriptor
< * @param name filename string
< * @param flags current flags of the file descriptor
< * @param mode current mode of the file descriptor
< * @param pipe denotes whether the file descriptor belongs to a pipe
< */
< void set(int sim_fd, const std::string name, int flags, int mode,
< bool pipe);
---
> /**
> * Holds the metadata needed to maintain the mappings for file descriptors
> * allocated with the pipe() system calls and its variants.
> */
> class PipeFDEntry: public HBFDEntry
> {
> public:
> enum EndType {
> read = 0,
> write = 1
> };
81,82c148,152
< /** Reset members to their default values. */
< void reset();
---
> PipeFDEntry(int sim_fd, int flags, EndType pipe_end_type,
> bool close_on_exec = false)
> : HBFDEntry(flags, sim_fd, close_on_exec), _pipeReadSource(-1),
> _pipeEndType(pipe_end_type)
> { }
84,91c154,177
< int fd;
< int mode;
< int flags;
< bool isPipe;
< int readPipeSource;
< uint64_t fileOffset;
< std::string filename;
< EmulatedDriver *driver;
---
> PipeFDEntry(PipeFDEntry const& pipe, bool close_on_exec = false)
> : HBFDEntry(pipe._flags, pipe._simFD, close_on_exec),
> _pipeReadSource(pipe._pipeReadSource),
> _pipeEndType(pipe._pipeEndType)
> { }
>
> inline std::shared_ptr<FDEntry>
> clone() const override
> {
> return std::make_shared<PipeFDEntry>(*this);
> }
>
> inline EndType getEndType() const { return _pipeEndType; }
> inline int getPipeReadSource() const { return _pipeReadSource; }
>
> inline void setPipeReadSource(int tgt_fd) { _pipeReadSource = tgt_fd; }
> inline void setEndType(EndType type) { _pipeEndType = type; }
>
> void serialize(CheckpointOut &cp) const override;
> void unserialize(CheckpointIn &cp) override;
>
> private:
> int _pipeReadSource;
> EndType _pipeEndType;
93a180,213
> /**
> * Holds file descriptors needed to simulate devices opened with pseudo
> * files (commonly with calls to ioctls).
> */
> class DeviceFDEntry : public FDEntry
> {
> public:
> DeviceFDEntry(EmulatedDriver *driver, std::string const& file_name,
> bool close_on_exec = false)
> : FDEntry(close_on_exec), _driver(driver), _fileName(file_name)
> { }
>
> DeviceFDEntry(DeviceFDEntry const& dev, bool close_on_exec = false)
> : FDEntry(close_on_exec), _driver(dev._driver),
> _fileName(dev._fileName)
> { }
>
> std::shared_ptr<FDEntry>
> clone() const override
> {
> return std::make_shared<DeviceFDEntry>(*this);
> }
>
> inline EmulatedDriver *getDriver() const { return _driver; }
> inline std::string getFileName() const { return _fileName; }
>
> void serialize(CheckpointOut &cp) const override;
> void unserialize(CheckpointIn &cp) override;
>
> private:
> EmulatedDriver *_driver;
> std::string _fileName;
> };
>