gem5::BaseSemihosting::FileFeatures Class Reference

Implementation of the ':semihosting-features' magic file. More...

#include <semihosting.hh>

Inheritance diagram for gem5::BaseSemihosting::FileFeatures:

Public Member Functions
	FileFeatures (BaseSemihosting &_parent, const char *name, const char *mode)
void	serialize (CheckpointOut &cp) const override
	Serialize an object.
void	unserialize (CheckpointIn &cp) override
	Unserialize an object.
int64_t	read (uint8_t *buffer, uint64_t size) override
	Read data from file.
int64_t	seek (uint64_t pos) override
	Seek to an absolute position in the file.
int64_t	flen () override
	Get the length of a file in bytes.
Public Member Functions inherited from gem5::BaseSemihosting::FileBase
	FileBase (BaseSemihosting &_parent, const char *name, const char *_mode)
virtual	~FileBase ()
	FileBase ()=delete
	FileBase (FileBase &)=delete
const std::string &	fileName ()
virtual int64_t	open ()
	Open the the file.
virtual int64_t	close ()
	Close the file.
virtual bool	isTTY () const
	Check if a file corresponds to a TTY device.
virtual int64_t	write (const uint8_t *buffer, uint64_t size)
	Write data to file.
Public Member Functions inherited from gem5::Serializable
	Serializable ()
virtual	~Serializable ()
void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section.
void	serializeSection (CheckpointOut &cp, const std::string &name) const
void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object.
void	unserializeSection (CheckpointIn &cp, const std::string &name)

Protected Attributes
size_t	pos = 0
Protected Attributes inherited from gem5::BaseSemihosting::FileBase
BaseSemihosting &	parent
std::string	_name
std::string	mode

Additional Inherited Members
Static Public Member Functions inherited from gem5::BaseSemihosting::FileBase
static std::unique_ptr< FileBase >	create (BaseSemihosting &parent, const std::string &fname, const char *mode)
static std::unique_ptr< FileBase >	create (BaseSemihosting &parent, CheckpointIn &cp, const std::string &sec)
Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.
static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.

Detailed Description

Implementation of the ':semihosting-features' magic file.

Definition at line 316 of file semihosting.hh.

Constructor & Destructor Documentation

FileFeatures()

gem5::BaseSemihosting::FileFeatures::FileFeatures	(	BaseSemihosting &	_parent,
		const char *	name,
		const char *	mode )

Definition at line 675 of file semihosting.cc.

References gem5::BaseSemihosting::FileBase::_name, gem5::BaseSemihosting::BaseSemihosting(), and gem5::BaseSemihosting::FileBase::FileBase().

Member Function Documentation

flen()

int64_t gem5::BaseSemihosting::FileFeatures::flen ( )

overridevirtual

Get the length of a file in bytes.

Returns

<0 on error (-errno), length on success

Reimplemented from gem5::BaseSemihosting::FileBase.

Definition at line 681 of file semihosting.cc.

References gem5::BaseSemihosting::features.

read()

int64_t gem5::BaseSemihosting::FileFeatures::read ( uint8_t * buffer, uint64_t size )

overridevirtual

Read data from file.

Returns

<0 on error (-errno), bytes read on success (0 for EOF).

Reimplemented from gem5::BaseSemihosting::FileBase.

Definition at line 687 of file semihosting.cc.

References gem5::BaseSemihosting::features, gem5::ArmISA::len, and pos.

seek()

int64_t gem5::BaseSemihosting::FileFeatures::seek ( uint64_t pos )

overridevirtual

Seek to an absolute position in the file.

Parameters

pos	Byte offset from start of file.

Returns

<0 on error (-errno), 0 on success.

Reimplemented from gem5::BaseSemihosting::FileBase.

Definition at line 698 of file semihosting.cc.

References gem5::BaseSemihosting::features, and pos.

serialize()

void gem5::BaseSemihosting::FileFeatures::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from gem5::BaseSemihosting::FileBase.

Definition at line 709 of file semihosting.cc.

References pos, gem5::BaseSemihosting::FileBase::serialize(), and SERIALIZE_SCALAR.

unserialize()

void gem5::BaseSemihosting::FileFeatures::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Reimplemented from gem5::BaseSemihosting::FileBase.

Definition at line 716 of file semihosting.cc.

References pos, gem5::BaseSemihosting::FileBase::unserialize(), and UNSERIALIZE_SCALAR.

Member Data Documentation

pos

size_t gem5::BaseSemihosting::FileFeatures::pos = 0

protected

Definition at line 330 of file semihosting.hh.

Referenced by read(), seek(), serialize(), and unserialize().

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The documentation for this class was generated from the following files:

• arch/generic/semihosting.hh
• arch/generic/semihosting.cc