abstract representation of an module of a simulation which could be a embedded device of the cpu of an embedded device. More...

#include <VirtualStruct.h>

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Classes
class	Field
	a Field instance represents e.g. More...

class	FieldT

Public Member Functions
virtual	~VirtualStruct ()

bool	addField (Field *f, bool noerrorprint=false)

template<typename structT , typename retT , retT structT::* field>
bool	addField (const std::string &name, const std::string &prettyname="", bool noerrorprint=false)
	add a structure field to this VirtualStructure

template<typename T >
bool	addField (const std::string &name, const std::string &prettyname, std::function< T()> read, std::function< void(T)> write, bool supportsListener=false, bool noerrorprint=false)

std::shared_ptr< Field >	findName (const std::string &name) const

std::shared_ptr< Field >	findPrettyName (const std::string &name) const

void	foreachField (const std::function< void(std::shared_ptr< Field >)> &func)

bool	mountStruct (const std::string &name, const std::shared_ptr< VirtualStruct > vs)

std::shared_ptr< VirtualStruct >	findStruct (const std::string &name)

void	foreachStruct (const std::function< void(const std::string &name, VirtualStruct &vs)> &func)

void	close ()

bool	isClosed ()

virtual std::list< std::string >	listFields ()
	list all fields directly reachable by this injector

virtual std::list< std::string >	listSubInjectors ()
	list all sub injectors.

virtual std::shared_ptr< etiss::fault::Injector >	getSubInjector (const std::string &name)
	get a sub injector.

virtual std::shared_ptr< etiss::fault::Injector >	getParentInjector ()
	get a the parent injector (root returns 0).

virtual bool	acceleratedTrigger (const etiss::fault::Trigger &, int32_t fault_id)

std::shared_ptr< VirtualStruct >	getVirtualStruct (const std::string &path)

std::shared_ptr< VirtualStruct::Field >	getResolvedField (const std::string &path)

Public Member Functions inherited from etiss::fault::Injector
	Injector ()

virtual	~Injector ()

virtual bool	needsCallbacks ()

virtual bool	cycleAccurateCallback (uint64_t time_ps)

virtual bool	instructionAccurateCallback (uint64_t time_ps)

virtual void	freeFastFieldAccessPtr (void *)
	MUST be called to cleanup a pointer acquired with fastFieldAccessPtr() default implementation is nop.

virtual std::string	getInjectorPath ()
	returns the path of the current object.

void	addTrigger (const Trigger &t, int32_t fault_id)
	TODO specialized lists. e.g. time triggers should be sorted and only the earliest time should be checked.

void	removeTrigger (const Trigger &t, int32_t fault_id)

Static Public Member Functions
static std::shared_ptr< VirtualStruct >	allocate (void structure, std::function< void(Field )> delete_)

static std::shared_ptr< VirtualStruct >	root ()

static std::shared_ptr< VirtualStruct >	allocateFromC (void handle, VirtualStruct_names names, VirtualStruct_prettyNames prettyNames_optional, VirtualStruct_read read_recommended, VirtualStruct_write write_optional, VirtualStruct_setListenerCallback setListenerCallback_optional, std::function< void(void handle)> cleanup)
	implemented in CVirtualStruct.cpp

Static Public Member Functions inherited from etiss::fault::Injector
static ptr	get (const std::string &injectorPath)

Public Attributes
std::function< bool(const etiss::fault::Fault &, const etiss::fault::Action &, std::string &)>	applyCustomAction
	set this function to handle custom commands passed by etiss::fault::Action of the type etiss::fault::Action::COMMAND

void *const	structure_

std::function< bool(const etiss::fault::Trigger &, int32_t)>	acceleratedTrigger_

Protected Member Functions
	VirtualStruct (void structure, std::function< void(Field )> dtor=[](Field *f) { delete f;})

virtual void *	fastFieldAccessPtr (const std::string &name, std::string &errormsg)

virtual bool	readField (void *fastfieldaccessptr, uint64_t &val, std::string &errormsg)
	read the value of a field

virtual bool	applyAction (const etiss::fault::Fault &fault, const etiss::fault::Action &action, std::string &errormsg)

virtual bool	update_field_access_rights (const etiss::fault::Action &action, std::string &errormsg)
	Update the `field` of injector with access rights to allow `action` (used to get type of action).

Private Attributes
std::list< Field * >	fields_

std::map< std::string, Field * >	fieldNames_

std::map< std::string, Field * >	fieldPrettyNames_

std::map< std::string, std::weak_ptr< VirtualStruct > >	subStructs_

std::function< void(Field *)>	dtor_

bool	closed

std::shared_ptr< VirtualStruct >	parent_

Friends
class	VSSync

Additional Inherited Members
Public Types inherited from etiss::fault::Injector
typedef Injector *	ptr

Detailed Description

abstract representation of an module of a simulation which could be a embedded device of the cpu of an embedded device.

it is recommended to model and address the full hardware hierachy. e.g.

 device1
            -> cpu
                -> cache
            -> bus
            -> memory
                -> bank1
                -> bank2

        example address: "device1::cpu::cache"

To resolve a path to a VirtualStruct use VirtualStruct::root()->getVirtualStruct("device1::cpu::cache");

Fields of a VirtualStruct can be addressed by appending ".FIELDNAME" to the pass and pass it to getResolvedField(). e.g. VirtualStruct::root()->getResolvedField("device1::cpu::cache.tag1");

Syntax (Wirth syntax notation):

    module_path_to_field:   module_path "." { ASCII-character }
    module_path:            module_name { "::" module_name } .
    module_name:            letter { digit | letter } .
    letter:                 "a" | "A" | "b" | "B" | ... | "z" | "Z" .
    digit:                  "0" | "1" | "2" | "3" | "4" | "5" | "6" | 7" | "8" |
"9" .

    module_path_to_field is the full path to a field.
    module_path is always relative to the current module

EXTENSION for absolute paths:

    absolute_module_path_to_field:  "::" module_path_to_field
    absolute_module_path:           "::" module_path .

    absolute module path will NOT use root()!
        it will traverse from the current module upward until no parent exists
and then the path will be resolved

the tree of modules uses weak/shared pointers to create a tree that will clean itself up as soon as possible depending on the lifetime of the virtual structs that were associated with said module.

weak reference: –> ( x holds a weak reference to y [x.weak_ptr = y]) strong reference: x -> y ( x holds a strong reference to y [x.shared_ptr = y])

Relations:

    VirtualStruct
        --> <- VirtualStruct
            --> <- VirtualStruct

    VirtualStruct holds a weak reference to child VirtualStructs and a child VirtualStruct holds a strong reference to
VirtualStruct. Module holds a weak reference to a child Module and a child Module holds a strong reference to parent
Module VirtualStructs are deleted if the original shared_ptr is deleted, there is no child and there is no shared_ptr to
a field

Attention: : while VirtualStruct won't throw exceptions by itself, VirtualStruct::Field will throw exception upon invalid access or if the associated VirtualStruct has been closed

Definition at line 101 of file VirtualStruct.h.

Constructor & Destructor Documentation

◆ VirtualStruct()

etiss::VirtualStruct::VirtualStruct	(	void *	structure,
		std::function< void(Field *)>	dtor = `[](Field *f) { delete f; }`
	)

protected

Definition at line 236 of file VirtualStruct.cpp.

◆ ~VirtualStruct()

etiss::VirtualStruct::~VirtualStruct ( )

virtual

Definition at line 240 of file VirtualStruct.cpp.

References close(), dtor_, etiss::ERROR, fields_, and etiss::log().

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Member Function Documentation

◆ acceleratedTrigger()

bool etiss::VirtualStruct::acceleratedTrigger	(	const etiss::fault::Trigger &	t,
		int32_t	fault_id
	)

virtual

Reimplemented from etiss::fault::Injector.

Definition at line 345 of file VirtualStruct.cpp.

References acceleratedTrigger_.

◆ addField() [1/3]

template<typename T >

bool etiss::VirtualStruct::addField	(	const std::string &	name,
		const std::string &	prettyname,
		std::function< T()>	read,
		std::function< void(T)>	write,
		bool	supportsListener = `false`,
		bool	noerrorprint = `false`
	)

inline

Definition at line 303 of file VirtualStruct.h.

References addField(), etiss::VirtualStruct::Field::L, etiss::VirtualStruct::Field::R, uint64_t, v, and etiss::VirtualStruct::Field::W.

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◆ addField() [2/3]

template<typename structT , typename retT , retT structT::* field>

bool etiss::VirtualStruct::addField	(	const std::string &	name,
		const std::string &	prettyname = `""`,
		bool	noerrorprint = `false`
	)

inline

add a structure field to this VirtualStructure

Definition at line 288 of file VirtualStruct.h.

References addField().

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◆ addField() [3/3]

bool etiss::VirtualStruct::addField	(	VirtualStruct::Field *	f,
		bool	noerrorprint = `false`
	)

Definition at line 268 of file VirtualStruct.cpp.

References etiss::ERROR, ETISS_SRCLOC, fieldNames_, fieldPrettyNames_, fields_, etiss::log(), etiss::VirtualStruct::Field::name_, etiss::VirtualStruct::Field::prettyname_, and etiss::VERBOSE.

Referenced by addField(), and addField().

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◆ allocate()

std::shared_ptr< VirtualStruct > etiss::VirtualStruct::allocate	(	void *	structure,
		std::function< void(Field *)>	delete_
	)

static

Definition at line 647 of file VirtualStruct.cpp.

Referenced by allocateFromC(), etiss::MemoryManipulationSystem::getStruct(), RV32IMACFDArch::getVirtualStruct(), RV64IMACFDArch::getVirtualStruct(), and root().

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◆ allocateFromC()

std::shared_ptr< VirtualStruct > etiss::VirtualStruct::allocateFromC	(	void *	handle,
		VirtualStruct_names	names,
		VirtualStruct_prettyNames	prettyNames_optional,
		VirtualStruct_read	read_recommended,
		VirtualStruct_write	write_optional,
		VirtualStruct_setListenerCallback	setListenerCallback_optional,
		std::function< void(void *handle)>	cleanup
	)

static

implemented in CVirtualStruct.cpp

TODO

Definition at line 33 of file CVirtualStruct.cpp.

References allocate(), etiss::ERROR, etiss::VirtualStruct::Field::L, etiss::log(), etiss::VirtualStruct::Field::P, etiss::parseName(), etiss::VirtualStruct::Field::R, and etiss::VirtualStruct::Field::W.

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◆ applyAction()

bool etiss::VirtualStruct::applyAction	(	const etiss::fault::Fault &	fault,
		const etiss::fault::Action &	action,
		std::string &	errormsg
	)

protectedvirtual

Returns: true if action could be applied

Attention: MUST NOT be called from without the callback functions cycleAccurateCallback() and instructionAccurateCallback(). The assumption of a singlethreaded access/use of these functions MUST hold.

Implements etiss::fault::Injector.

Definition at line 470 of file VirtualStruct.cpp.

References etiss::VirtualStruct::Field::A, etiss::VirtualStruct::Field::applyAction(), applyCustomAction, etiss::VirtualStruct::Field::F, fieldNames_, fieldPrettyNames_, etiss::VirtualStruct::Field::flags_, etiss::fault::Injector::getInjectorPath(), etiss::fault::Action::getTargetField(), and etiss::fault::Action::getType().

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◆ close()

void etiss::VirtualStruct::close ( )

Definition at line 400 of file VirtualStruct.cpp.

References closed.

Referenced by ~VirtualStruct().

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◆ fastFieldAccessPtr()

void * etiss::VirtualStruct::fastFieldAccessPtr	(	const std::string &	name,
		std::string &	errormsg
	)

protectedvirtual

Attention: MUST NOT be called from without the callback functions cycleAccurateCallback() and instructionAccurateCallback(). The assumption of a singlethreaded access/use of these functions MUST hold.

Returns: 0 in case of failure. otherwise an internal pointer shall be retuned that allows to access a field in a quick manner. freefastFieldAccessPtr MUST be called after use.

Implements etiss::fault::Injector.

Definition at line 439 of file VirtualStruct.cpp.

References fieldNames_, and fieldPrettyNames_.

◆ findName()

std::shared_ptr< VirtualStruct::Field > etiss::VirtualStruct::findName ( const std::string & name ) const

Definition at line 307 of file VirtualStruct.cpp.

References closed, and fieldNames_.

Referenced by etiss::copy().

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◆ findPrettyName()

std::shared_ptr< VirtualStruct::Field > etiss::VirtualStruct::findPrettyName ( const std::string & name ) const

Definition at line 321 of file VirtualStruct.cpp.

References closed, and fieldPrettyNames_.

◆ findStruct()

std::shared_ptr< VirtualStruct > etiss::VirtualStruct::findStruct ( const std::string & name )

Definition at line 378 of file VirtualStruct.cpp.

References subStructs_.

Referenced by getSubInjector().

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◆ foreachField()

void etiss::VirtualStruct::foreachField ( const std::function< void(std::shared_ptr< Field >)> & func )

Definition at line 334 of file VirtualStruct.cpp.

References closed, and fields_.

Referenced by etiss::copy(), and listFields().

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◆ foreachStruct()

void etiss::VirtualStruct::foreachStruct ( const std::function< void(const std::string &name, VirtualStruct &vs)> & func )

Definition at line 386 of file VirtualStruct.cpp.

References subStructs_.

Referenced by listSubInjectors().

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◆ getParentInjector()

std::shared_ptr< etiss::fault::Injector > etiss::VirtualStruct::getParentInjector ( )

virtual

get a the parent injector (root returns 0).

in case of c++11 this function returns a smart pointer (std::shared_ptr<Injector>)

See also: etiss::VirtualStruct for example implemention

Implements etiss::fault::Injector.

Definition at line 434 of file VirtualStruct.cpp.

References parent_.

◆ getResolvedField()

std::shared_ptr< VirtualStruct::Field > etiss::VirtualStruct::getResolvedField ( const std::string & path )

Definition at line 711 of file VirtualStruct.cpp.

References getVirtualStruct().

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◆ getSubInjector()

std::shared_ptr< etiss::fault::Injector > etiss::VirtualStruct::getSubInjector ( const std::string & name )

virtual

get a sub injector.

in case of c++11 this function returns a smart pointer (std::shared_ptr<Injector>)

See also: etiss::VirtualStruct for example implemention

Implements etiss::fault::Injector.

Definition at line 430 of file VirtualStruct.cpp.

References findStruct().

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◆ getVirtualStruct()

std::shared_ptr< VirtualStruct > etiss::VirtualStruct::getVirtualStruct ( const std::string & path )

Definition at line 660 of file VirtualStruct.cpp.

References parent_, and subStructs_.

Referenced by getResolvedField().

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◆ isClosed()

bool etiss::VirtualStruct::isClosed ( )

Definition at line 406 of file VirtualStruct.cpp.

References closed.

◆ listFields()

std::list< std::string > etiss::VirtualStruct::listFields ( )

virtual

list all fields directly reachable by this injector

See also: etiss::VirtualStruct for example implemention

Implements etiss::fault::Injector.

Definition at line 412 of file VirtualStruct.cpp.

References foreachField().

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◆ listSubInjectors()

std::list< std::string > etiss::VirtualStruct::listSubInjectors ( )

virtual

list all sub injectors.

See also: etiss::VirtualStruct for example implemention

Implements etiss::fault::Injector.

Definition at line 423 of file VirtualStruct.cpp.

References foreachStruct().

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◆ mountStruct()

bool etiss::VirtualStruct::mountStruct	(	const std::string &	name,
		const std::shared_ptr< VirtualStruct >	vs
	)

Definition at line 356 of file VirtualStruct.cpp.

References subStructs_.

◆ readField()

bool etiss::VirtualStruct::readField	(	void *	fastfieldaccessptr,
		uint64_t &	val,
		std::string &	errormsg
	)

protectedvirtual

read the value of a field

Returns: true if read succeded

Attention: MUST NOT be called from outside the callback functions cycleAccurateCallback() and instructionAccurateCallback(). The assumption of a singlethreaded access/use of these functions MUST hold.

Implements etiss::fault::Injector.

Definition at line 454 of file VirtualStruct.cpp.

References etiss::VirtualStruct::Field::flags_, etiss::VirtualStruct::Field::R, and etiss::VirtualStruct::Field::read().

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◆ root()

std::shared_ptr< VirtualStruct > etiss::VirtualStruct::root ( )

static

Definition at line 654 of file VirtualStruct.cpp.

References allocate().

Referenced by etiss::fault::Injector::get(), and etiss::initialize_virtualstruct().

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◆ update_field_access_rights()

bool etiss::VirtualStruct::update_field_access_rights	(	const etiss::fault::Action &	action,
		std::string &	errormsg
	)

protectedvirtual

Update the field of injector with access rights to allow action (used to get type of action).

For example, if action is of etiss::fault::Action::BITFLIP, field requires F flag set

Implements etiss::fault::Injector.

Definition at line 526 of file VirtualStruct.cpp.

References etiss::VirtualStruct::Field::F, fieldNames_, fieldPrettyNames_, etiss::VirtualStruct::Field::flags_, etiss::fault::Action::getTargetField(), and etiss::fault::Action::getType().

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Friends And Related Symbol Documentation

◆ VSSync

friend class VSSync

friend

Definition at line 103 of file VirtualStruct.h.

Member Data Documentation

◆ acceleratedTrigger_

std::function<bool(const etiss::fault::Trigger &, int32_t)> etiss::VirtualStruct::acceleratedTrigger_

Definition at line 357 of file VirtualStruct.h.

Referenced by acceleratedTrigger().

◆ applyCustomAction

std::function<bool(const etiss::fault::Fault &, const etiss::fault::Action &, std::string & )> etiss::VirtualStruct::applyCustomAction

set this function to handle custom commands passed by etiss::fault::Action of the type etiss::fault::Action::COMMAND

Definition at line 353 of file VirtualStruct.h.

Referenced by applyAction().

◆ closed

bool etiss::VirtualStruct::closed

private

Definition at line 365 of file VirtualStruct.h.

Referenced by close(), findName(), findPrettyName(), foreachField(), and isClosed().

◆ dtor_

std::function<void(Field *)> etiss::VirtualStruct::dtor_

private

Definition at line 364 of file VirtualStruct.h.

Referenced by ~VirtualStruct().

◆ fieldNames_

std::map<std::string, Field *> etiss::VirtualStruct::fieldNames_

private

Definition at line 361 of file VirtualStruct.h.

Referenced by addField(), applyAction(), fastFieldAccessPtr(), findName(), and update_field_access_rights().

◆ fieldPrettyNames_

std::map<std::string, Field *> etiss::VirtualStruct::fieldPrettyNames_

private

Definition at line 362 of file VirtualStruct.h.

Referenced by addField(), applyAction(), fastFieldAccessPtr(), findPrettyName(), and update_field_access_rights().

◆ fields_

std::list<Field *> etiss::VirtualStruct::fields_

private

Definition at line 360 of file VirtualStruct.h.

Referenced by addField(), foreachField(), and ~VirtualStruct().

◆ parent_

std::shared_ptr<VirtualStruct> etiss::VirtualStruct::parent_

private

Definition at line 368 of file VirtualStruct.h.

Referenced by getParentInjector(), and getVirtualStruct().

◆ structure_

◆ subStructs_

std::map<std::string, std::weak_ptr<VirtualStruct> > etiss::VirtualStruct::subStructs_

private

Definition at line 363 of file VirtualStruct.h.

Referenced by findStruct(), foreachStruct(), getVirtualStruct(), and mountStruct().

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

/home/runner/work/etiss/etiss/include/etiss/VirtualStruct.h
/home/runner/work/etiss/etiss/src/CVirtualStruct.cpp
/home/runner/work/etiss/etiss/src/VirtualStruct.cpp

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ VirtualStruct()

◆ ~VirtualStruct()

Member Function Documentation

◆ acceleratedTrigger()

◆ addField() [1/3]

◆ addField() [2/3]

◆ addField() [3/3]

◆ allocate()

◆ allocateFromC()

◆ applyAction()

◆ close()

◆ fastFieldAccessPtr()

◆ findName()

◆ findPrettyName()

◆ findStruct()

◆ foreachField()

◆ foreachStruct()

◆ getParentInjector()

◆ getResolvedField()

◆ getSubInjector()

◆ getVirtualStruct()

◆ isClosed()

◆ listFields()

◆ listSubInjectors()

◆ mountStruct()

◆ readField()

◆ root()

◆ update_field_access_rights()

Friends And Related Symbol Documentation

◆ VSSync

Member Data Documentation

◆ acceleratedTrigger_

◆ applyCustomAction

◆ closed

◆ dtor_

◆ fieldNames_

◆ fieldPrettyNames_

◆ fields_

◆ parent_

◆ structure_

◆ subStructs_