TPEF::TPEFLineNumSectionReader Class Reference

#include <TPEFLineNumSectionReader.hh>

Inheritance diagram for TPEF::TPEFLineNumSectionReader:

Collaboration diagram for TPEF::TPEFLineNumSectionReader:

Protected Member Functions
	TPEFLineNumSectionReader ()
virtual	~TPEFLineNumSectionReader ()
virtual void	readData (BinaryStream &stream, Section *section) const
virtual Section::SectionType	type () const
virtual void	readInfo (BinaryStream &stream, Section *sect) const
Protected Member Functions inherited from TPEF::TPEFSectionReader
	TPEFSectionReader ()
virtual BinaryReader *	parent () const
Protected Member Functions inherited from TPEF::SectionReader
	SectionReader ()
virtual void	finalize (Section *section) const

Private Member Functions
	TPEFLineNumSectionReader (const TPEFLineNumSectionReader &)
	Copying not allowed.
TPEFLineNumSectionReader &	operator= (TPEFLineNumSectionReader &)
	Assignment not allowed.

Static Private Attributes
static TPEFLineNumSectionReader	proto_
	Prototype instance of TPEFLineNumSectionReader to be registered to SectionReader.
static SectionId	codeSectionId_ = 0
	Identification code of text section which is referenced from currently read section.

Additional Inherited Members
Public Types inherited from TPEF::SectionReader
typedef BinaryReader::Length	Length
Public Member Functions inherited from TPEF::TPEFSectionReader
virtual	~TPEFSectionReader ()
Public Member Functions inherited from TPEF::SectionReader
virtual	~SectionReader ()
Static Public Member Functions inherited from TPEF::SectionReader
static void	readSection (BinaryStream &stream, Section *section, BinaryReader *reader)
static void	finalizeBinary (Binary *binaryToFinalize, BinaryReader *reader)
Static Protected Member Functions inherited from TPEF::TPEFSectionReader
static const Header &	header ()
Static Protected Member Functions inherited from TPEF::SectionReader
static const SectionReader *	findSectionReader (const Section::SectionType type, const BinaryReader *bReader)
static void	registerSectionReader (const SectionReader *sReader)

Detailed Description

Reads line number section from TPEF binary file.

Definition at line 47 of file TPEFLineNumSectionReader.hh.

Constructor & Destructor Documentation

TPEFLineNumSectionReader() [1/2]

TPEF::TPEFLineNumSectionReader::TPEFLineNumSectionReader ( )

protected

Constructor.

Registers itself to SectionReader.

Definition at line 59 of file TPEFLineNumSectionReader.cc.

                                                   : TPEFSectionReader() {
    SectionReader::registerSectionReader(this);
}

References TPEF::SectionReader::registerSectionReader().

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~TPEFLineNumSectionReader()

TPEF::TPEFLineNumSectionReader::~TPEFLineNumSectionReader ( )

protectedvirtual

Destructor.

Definition at line 66 of file TPEFLineNumSectionReader.cc.

                                                    {
}

TPEFLineNumSectionReader() [2/2]

TPEF::TPEFLineNumSectionReader::TPEFLineNumSectionReader ( const TPEFLineNumSectionReader &  )

private

Copying not allowed.

Member Function Documentation

operator=()

TPEFLineNumSectionReader & TPEF::TPEFLineNumSectionReader::operator= ( TPEFLineNumSectionReader &  )

private

Assignment not allowed.

readData()

void TPEF::TPEFLineNumSectionReader::readData ( BinaryStream &  stream, Section *  section  ) const

protectedvirtual

Reads section data from TPEF binary file.

Parameters

stream	Stream to be read from.
section	Section where the information is to be stored.

Exceptions

UnreachableStream	If reading of section fails.
KeyAlreadyExists	Key was in use when trying to register object.
EndOfFile	If end of file were reached while it shouldn't.
OutOfRange	Some of read value were out of range.
WrongSubclass	Some class couldn't do what it was asked for.
UnexpectedValue	If there was unexpected value when reading.

Reimplemented from TPEF::TPEFSectionReader.

Definition at line 92 of file TPEFLineNumSectionReader.cc.

                                                  {
    // base classes implementation must be called with these.
    TPEFSectionReader::readData(stream, section);
 
    LineNumSection* lineNumSection = dynamic_cast<LineNumSection*>(section);
    assert(lineNumSection != NULL);
 
    // check that link section is defined properly
    assert(header().linkId != 0);
 
    if (!section->noBits()) {
        // mark start of first element
        SectionOffset elementStart = header().bodyOffset;
 
        LineNumProcedure *procedure = NULL;
 
        while (elementStart + header().elementSize <=
               header().bodyOffset + header().bodyLength) {
 
            Word elementOffset = stream.readWord();
            HalfWord lineNum = stream.readHalfWord();
 
            // Let's create new procedure for our line numbers if needed.
            if (lineNum == 0) {
                procedure = new LineNumProcedure();
 
                SectionIndexKey indexKey(header().linkId, elementOffset);
 
                if (elementOffset != 0) {
                    procedure->setProcedureSymbol(
                        CREATE_SAFEPOINTER(indexKey));
                }
 
                section->addElement(procedure);
 
            } else if (procedure != NULL) {
                LineNumElement *elem = new LineNumElement();
 
                // where is section id off data section stored
                SectionOffsetKey instrKey(codeSectionId_, elementOffset);
                elem->setInstruction(CREATE_SAFEPOINTER(instrKey));
                elem->setLineNumber(lineNum);
 
                // add line to last created procedure
                procedure->addLine(elem);
 
            } else {
                bool sectionShouldNotHaveLineNumbersBeforeProcedure = false;
                assert(sectionShouldNotHaveLineNumbersBeforeProcedure);
            }
 
            elementStart += header().elementSize;
            stream.setReadPosition(elementStart);
        }
    }
}

References TPEF::Section::addElement(), TPEF::LineNumProcedure::addLine(), assert, TPEF::TPEFSectionReader::Header::bodyOffset, codeSectionId_, TPEF::TPEFSectionReader::Header::elementSize, TPEF::TPEFSectionReader::header(), TPEF::Section::noBits(), TPEF::TPEFSectionReader::readData(), TPEF::BinaryStream::readHalfWord(), TPEF::BinaryStream::readWord(), TPEF::LineNumElement::setInstruction(), TPEF::LineNumElement::setLineNumber(), TPEF::LineNumProcedure::setProcedureSymbol(), and TPEF::BinaryStream::setReadPosition().

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readInfo()

void TPEF::TPEFLineNumSectionReader::readInfo ( BinaryStream &  stream, Section *  sect  ) const

protectedvirtual

Reads info field of section header, which contains the identification code of the code section to which the line number section applies.

Read position of stream will be moved 4 bytes forward.

Parameters

stream	Stream where from info word is read.
sect	Section whose info field is interpreted.

Reimplemented from TPEF::TPEFSectionReader.

Definition at line 160 of file TPEFLineNumSectionReader.cc.

                                                        {
 
    // identification code of referenced section is in first 2 bytes of info
    // field
    codeSectionId_ = stream.readHalfWord();
 
    if (codeSectionId_ != 0) {
        SectionKey sKey(codeSectionId_);
        dynamic_cast<LineNumSection*>(sect)->setCodeSection(
            CREATE_SAFEPOINTER(sKey));
    } else {
        dynamic_cast<LineNumSection*>(sect)->setCodeSection(
            &SafePointer::null);
    }
 
    // skip rest 2 of 4 bytes
    stream.readHalfWord();
}

References codeSectionId_, TPEF::ReferenceManager::SafePointer::null, and TPEF::BinaryStream::readHalfWord().

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type()

Section::SectionType TPEF::TPEFLineNumSectionReader::type ( ) const

protectedvirtual

Returns the type of section it is meant to read.

Returns

The type of section it can read.

Implements TPEF::SectionReader.

Definition at line 75 of file TPEFLineNumSectionReader.cc.

                                     {
    return Section::ST_LINENO;
}

References TPEF::Section::ST_LINENO.

Member Data Documentation

codeSectionId_

SectionId TPEF::TPEFLineNumSectionReader::codeSectionId_ = 0

staticprivate

Identification code of text section which is referenced from currently read section.

Definition at line 65 of file TPEFLineNumSectionReader.hh.

Referenced by readData(), and readInfo().

proto_

TPEFLineNumSectionReader TPEF::TPEFLineNumSectionReader::proto_

staticprivate

Prototype instance of TPEFLineNumSectionReader to be registered to SectionReader.

Definition at line 61 of file TPEFLineNumSectionReader.hh.

---

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

• TPEFLineNumSectionReader.hh
• TPEFLineNumSectionReader.cc