simple etiss:System implementation for testing More...

#include <SimpleMemSystem.h>

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Classes
struct	find_fitting_mseg

Public Member Functions
	SimpleMemSystem (void)

virtual	~SimpleMemSystem (void)

etiss::int32	iread (ETISS_CPU *cpu, etiss::uint64 addr, etiss::uint32 len)
	Instruction read operation. More...

etiss::int32	iwrite (ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)
	Instruction write operation. More...

etiss::int32	dread (ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)
	Data read operation. More...

etiss::int32	dwrite (ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)
	Data write operation. More...

etiss::int32	dbg_read (etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len)
	Debug read operation. More...

etiss::int32	dbg_write (etiss::uint64 addr, etiss::uint8 *buf, etiss::uint32 len)
	Debug write operation. More...

void	syncTime (ETISS_CPU *cpu)
	Synchronize simulation time. More...

void	init_memory ()

void	load_elf ()

void	load_segments (void)

etiss::uint64	get_startaddr (void)

void	add_memsegment (std::unique_ptr< MemSegment > &mseg, const void *raw_data, size_t file_size_bytes)

Public Member Functions inherited from etiss::System
virtual	~System ()

Private Member Functions
template<bool write>
etiss::int32	dbus_access (ETISS_CPU cpu, etiss::uint64 addr, etiss::uint8 buf, etiss::uint32 len)

Private Attributes
std::vector< std::unique_ptr< MemSegment > >	msegs_ {}

etiss::uint64	start_addr_ { 0 }

bool	print_ibus_access_

bool	print_dbus_access_

bool	print_dbgbus_access_

bool	print_to_file_

bool	error_on_seg_mismatch_

int	message_max_cnt_

std::ofstream	trace_file_dbus_

std::map< etiss::uint64, etiss::uint64 >	configured_address_spaces_

Detailed Description

simple etiss:System implementation for testing

Definition at line 123 of file SimpleMemSystem.h.

Constructor & Destructor Documentation

◆ SimpleMemSystem()

SimpleMemSystem::SimpleMemSystem ( void )

Definition at line 400 of file SimpleMemSystem.cpp.

References etiss::cfg(), print_dbus_access_, and trace_file_dbus_.

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◆ ~SimpleMemSystem()

virtual etiss::SimpleMemSystem::~SimpleMemSystem ( void )

inlinevirtual

Definition at line 128 of file SimpleMemSystem.h.

References msegs_.

Member Function Documentation

◆ add_memsegment()

void SimpleMemSystem::add_memsegment	(	std::unique_ptr< MemSegment > &	mseg,
		const void *	raw_data,
		size_t	file_size_bytes
	)

Definition at line 389 of file SimpleMemSystem.cpp.

References etiss::INFO, etiss::log(), and msegs_.

Referenced by load_elf(), and load_segments().

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◆ dbg_read()

etiss::int32 SimpleMemSystem::dbg_read	(	etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Debug read operation.

This method should implement a debug read operation. The debug operations are used for data access that should not influence the simulation time. To indicate an error a non 0 value should be returned.

Note: The read debug operation is used for the instruction fetches required for generating the code blocks.

Parameters

addr	The address from which the data should be read.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 504 of file SimpleMemSystem.cpp.

References dread().

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◆ dbg_write()

etiss::int32 SimpleMemSystem::dbg_write	(	etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Debug write operation.

This method should implement a debug write operation. The debug operations are used for data access that should not influence the simulation time. To indicate an error a non 0 value should be returned.

Parameters

addr	The address to which the data should be written.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred

Implements etiss::System.

Definition at line 509 of file SimpleMemSystem.cpp.

References dwrite().

Referenced by main().

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◆ dbus_access()

template<bool write>

etiss::int32 SimpleMemSystem::dbus_access	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

private

Definition at line 466 of file SimpleMemSystem.cpp.

References access_error(), etiss::ERROR, memcpy(), msegs_, etiss::mm::NOERROR, print_dbus_access_, print_to_file_, etiss::MemSegment::READ, trace(), trace_file_dbus_, etiss::WARNING, and etiss::MemSegment::WRITE.

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◆ dread()

etiss::int32 SimpleMemSystem::dread	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Data read operation.

This method should implement a data read operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address from which the data should be read.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 494 of file SimpleMemSystem.cpp.

Referenced by dbg_read().

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◆ dwrite()

etiss::int32 SimpleMemSystem::dwrite	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Data write operation.

This method should implement a data write operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address to which the data should be written.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the data in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 499 of file SimpleMemSystem.cpp.

Referenced by dbg_write().

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◆ get_startaddr()

etiss::uint64 etiss::SimpleMemSystem::get_startaddr ( void )

inline

Definition at line 147 of file SimpleMemSystem.h.

References start_addr_.

Referenced by main().

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◆ init_memory()

void SimpleMemSystem::init_memory ( )

Definition at line 192 of file SimpleMemSystem.cpp.

References b, load_elf(), load_segments(), msegs_, and sort().

Referenced by main().

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◆ iread()

etiss::int32 SimpleMemSystem::iread	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint32	len
	)

virtual

Instruction read operation.

This method should implement an instruction read operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Note: Normally this method can be implemented as an empty method that only returns an error value. Because of the translating nature of ETISS all instruction operations are out of order an will be performed via the debug interface.

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address from which the instruction should be read.
len	The length of the instruction in bytes.

Returns: 0 if no error occurred

Implements etiss::System.

Definition at line 425 of file SimpleMemSystem.cpp.

References access_error(), etiss::ERROR, msegs_, and etiss::mm::NOERROR.

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◆ iwrite()

etiss::int32 SimpleMemSystem::iwrite	(	ETISS_CPU *	cpu,
		etiss::uint64	addr,
		etiss::uint8 *	buf,
		etiss::uint32	len
	)

virtual

Instruction write operation.

This method should implement an instruction write operation. To indicate an error a non 0 value should be returned. The CPU time needs to be increased according to the delay of this instruction operation.

Note: Normally this method can be implemented as an empty method that only returns an error value. Because of the translating nature of ETISS all instruction operations are out of order an will be performed via the debug interface

Parameters

cpu	Pointer to the CPU structure, that requested this operation.
addr	The address to which the instruction should be written.
buf	Pointer to the buffer, that contains the instruction.
len	The length of the instruction in bytes.

Returns: 0 if no error occurred.

Implements etiss::System.

Definition at line 434 of file SimpleMemSystem.cpp.

References access_error(), and etiss::ERROR.

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◆ load_elf()

void SimpleMemSystem::load_elf ( )

Definition at line 284 of file SimpleMemSystem.cpp.

References add_memsegment(), etiss::cfg(), error_on_seg_mismatch_, etiss::MemSegment::EXEC, etiss::FATALERROR, etiss::Configuration::get(), etiss::INFO, etiss::log(), get_metrics::mode, msegs_, etiss::MemSegment::READ, get_metrics::reader, etiss::Configuration::set(), start_addr_, etiss::WARNING, and etiss::MemSegment::WRITE.

Referenced by init_memory().

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◆ load_segments()

void SimpleMemSystem::load_segments ( void )

Definition at line 198 of file SimpleMemSystem.cpp.

References add_memsegment(), etiss::cfg(), configured_address_spaces_, etiss::MemSegment::EXEC, etiss::FATALERROR, etiss::Configuration::get(), etiss::INFO, etiss::Configuration::isSet(), length(), etiss::log(), MAX_MEMSEGS, get_metrics::mode, etiss::MemSegment::READ, uint64_t, etiss::MemSegment::UNSET, and etiss::MemSegment::WRITE.

Referenced by init_memory().

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◆ syncTime()

void SimpleMemSystem::syncTime ( ETISS_CPU * cpu )

virtual

Synchronize simulation time.

This method should implement the synchronization between the simulation time of the system and the CPU. This function call should allow the system to catch up with the CPU.

See also: etiss::ETISS_CPU

Parameters

cpu	Pointer to the CPU structure, for which the synchronization should be performed.

Implements etiss::System.

Definition at line 515 of file SimpleMemSystem.cpp.

Member Data Documentation

◆ configured_address_spaces_

std::map<etiss::uint64, etiss::uint64> etiss::SimpleMemSystem::configured_address_spaces_

private

Definition at line 176 of file SimpleMemSystem.h.

Referenced by load_segments().

◆ error_on_seg_mismatch_

bool etiss::SimpleMemSystem::error_on_seg_mismatch_

private

Definition at line 170 of file SimpleMemSystem.h.

Referenced by load_elf().

◆ message_max_cnt_

int etiss::SimpleMemSystem::message_max_cnt_

private

Definition at line 172 of file SimpleMemSystem.h.

◆ msegs_

std::vector<std::unique_ptr<MemSegment> > etiss::SimpleMemSystem::msegs_ {}

private

Definition at line 151 of file SimpleMemSystem.h.

Referenced by add_memsegment(), dbus_access(), init_memory(), iread(), load_elf(), and ~SimpleMemSystem().

◆ print_dbgbus_access_

bool etiss::SimpleMemSystem::print_dbgbus_access_

private

Definition at line 167 of file SimpleMemSystem.h.

◆ print_dbus_access_

bool etiss::SimpleMemSystem::print_dbus_access_

private

Definition at line 166 of file SimpleMemSystem.h.

Referenced by dbus_access(), and SimpleMemSystem().

◆ print_ibus_access_

bool etiss::SimpleMemSystem::print_ibus_access_

private

Definition at line 165 of file SimpleMemSystem.h.

◆ print_to_file_

bool etiss::SimpleMemSystem::print_to_file_

private

Definition at line 168 of file SimpleMemSystem.h.

Referenced by dbus_access().

◆ start_addr_

etiss::uint64 etiss::SimpleMemSystem::start_addr_ { 0 }

private

Definition at line 156 of file SimpleMemSystem.h.

Referenced by get_startaddr(), and load_elf().

◆ trace_file_dbus_

std::ofstream etiss::SimpleMemSystem::trace_file_dbus_

private

Definition at line 174 of file SimpleMemSystem.h.

Referenced by dbus_access(), and SimpleMemSystem().

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

/home/runner/work/etiss/etiss/include/etiss/SimpleMemSystem.h
/home/runner/work/etiss/etiss/src/SimpleMemSystem.cpp

Classes

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SimpleMemSystem()

◆ ~SimpleMemSystem()

Member Function Documentation

◆ add_memsegment()

◆ dbg_read()

◆ dbg_write()

◆ dbus_access()

◆ dread()

◆ dwrite()

◆ get_startaddr()

◆ init_memory()

◆ iread()

◆ iwrite()

◆ load_elf()

◆ load_segments()

◆ syncTime()

Member Data Documentation

◆ configured_address_spaces_

◆ error_on_seg_mismatch_

◆ message_max_cnt_

◆ msegs_

◆ print_dbgbus_access_

◆ print_dbus_access_

◆ print_ibus_access_

◆ print_to_file_

◆ start_addr_

◆ trace_file_dbus_