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/*! @file CoverageMapBase.cc
* @brief CoverageMapBase Implementation
*
* This file contains the implementation of the functions
* which provide a base level of functionality of a CoverageMap.
*/
#include <libgen.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include "CoverageMapBase.h"
namespace Coverage {
CoverageMapBase::CoverageMapBase(
uint32_t low,
uint32_t high
)
{
uint32_t a;
AddressRange_t range;
range.lowAddress = low;
range.highAddress = high;
RangeList.push_back( range );
Size = high - low + 1;
Info = new perAddressInfo_t[ Size ];
for (a=0; a<Size; a++) {
perAddressInfo_t *i = &Info[ a ];
i->isStartOfInstruction = false;
i->wasExecuted = 0;
i->isBranch = false;
i->isNop = false;
i->wasTaken = 0;
i->wasNotTaken = 0;
}
}
CoverageMapBase::~CoverageMapBase()
{
if (Info)
delete Info;
}
void CoverageMapBase::Add( uint32_t low, uint32_t high )
{
AddressRange_t range;
range.lowAddress = low;
range.highAddress = high;
RangeList.push_back( range );
}
bool CoverageMapBase::determineOffset(
uint32_t address,
uint32_t *offset
)const
{
AddressRange::const_iterator itr;
for ( itr = RangeList.begin(); itr != RangeList.end(); itr++ ) {
if ((address >= itr->lowAddress) && (address <= itr->highAddress)){
*offset = address - itr->lowAddress;
return true;
}
}
*offset = 0;
return false;
}
void CoverageMapBase::dump( void ) const {
uint32_t a;
perAddressInfo_t* entry;
fprintf( stderr, "Coverage Map Contents:\n" );
/*
* XXX - Dump is only marking the first Address Range.
*/
for (a = 0; a < Size; a++) {
entry = &Info[ a ];
fprintf(
stderr,
"0x%x - isStartOfInstruction = %s, wasExecuted = %s\n",
a + RangeList.front().lowAddress,
entry->isStartOfInstruction ? "TRUE" : "FALSE",
entry->wasExecuted ? "TRUE" : "FALSE"
);
fprintf(
stderr,
" isBranch = %s, wasTaken = %s, wasNotTaken = %s\n",
entry->isBranch ? "TRUE" : "FALSE",
entry->wasTaken ? "TRUE" : "FALSE",
entry->wasNotTaken ? "TRUE" : "FALSE"
);
}
}
bool CoverageMapBase::getBeginningOfInstruction(
uint32_t address,
uint32_t* beginning
) const
{
bool status = false;
uint32_t start;
AddressRange_t range;
status = getRange( address, &range );
if ( status != true )
return status;
start = address;
while (start >= range.lowAddress ) {
if (Info[ start - range.lowAddress ].isStartOfInstruction) {
*beginning = start;
status = true;
break;
}
else
start--;
}
return status;
}
int32_t CoverageMapBase::getFirstLowAddress() const
{
return RangeList.front().lowAddress;
}
bool CoverageMapBase::getRange( uint32_t address, AddressRange_t *range ) const
{
AddressRange::const_iterator itr;
for ( itr = RangeList.begin(); itr != RangeList.end(); itr++ ) {
if ((address >= itr->lowAddress) && (address <= itr->highAddress)){
range->lowAddress = itr->lowAddress;
range->highAddress = itr->highAddress;
return true;
}
}
range->lowAddress = 0;
range->highAddress = 0;
return false;
}
uint32_t CoverageMapBase::getSize() const
{
return Size;
}
void CoverageMapBase::setIsStartOfInstruction(
uint32_t address
)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].isStartOfInstruction = true;
}
bool CoverageMapBase::isStartOfInstruction( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return false;
return Info[ offset ].isStartOfInstruction;
}
void CoverageMapBase::setWasExecuted( uint32_t address )
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].wasExecuted += 1;
}
void CoverageMapBase::sumWasExecuted( uint32_t address, uint32_t addition)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].wasExecuted += addition;
}
bool CoverageMapBase::wasExecuted( uint32_t address ) const
{
uint32_t offset;
bool result;
result = true;
if (determineOffset( address, &offset ) != true)
result = false;
if (Info[ offset ].wasExecuted <= 0)
result = false;
return result;
}
uint32_t CoverageMapBase::getWasExecuted( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return 0;
return Info[ offset ].wasExecuted;
}
void CoverageMapBase::setIsBranch(
uint32_t address
)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].isBranch = true;
}
bool CoverageMapBase::isNop( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return false;
return Info[ offset ].isNop;
}
void CoverageMapBase::setIsNop(
uint32_t address
)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].isNop = true;
}
bool CoverageMapBase::isBranch( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return false;
return Info[ offset ].isBranch;
}
void CoverageMapBase::setWasTaken(
uint32_t address
)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].wasTaken += 1;
}
void CoverageMapBase::setWasNotTaken(
uint32_t address
)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].wasNotTaken += 1;
}
bool CoverageMapBase::wasAlwaysTaken( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return false;
return (Info[ offset ].wasTaken &&
!Info[ offset ].wasNotTaken);
}
bool CoverageMapBase::wasNeverTaken( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return false;
return (!Info[ offset ].wasTaken &&
Info[ offset ].wasNotTaken);
}
bool CoverageMapBase::wasNotTaken( uint32_t address ) const
{
uint32_t offset;
bool result;
result = true;
if (determineOffset( address, &offset ) != true)
result = false;
if (Info[ offset ].wasNotTaken <= 0)
result = false;
return result;
}
void CoverageMapBase::sumWasNotTaken( uint32_t address, uint32_t addition)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].wasNotTaken += addition;
}
uint32_t CoverageMapBase::getWasNotTaken( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return 0;
return Info[ offset ].wasNotTaken;
}
bool CoverageMapBase::wasTaken( uint32_t address ) const
{
uint32_t offset;
bool result;
result = true;
if (determineOffset( address, &offset ) != true)
result = false;
if (Info[ offset ].wasTaken <= 0)
result = false;
return result;
}
void CoverageMapBase::sumWasTaken( uint32_t address, uint32_t addition)
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return;
Info[ offset ].wasTaken += addition;
}
uint32_t CoverageMapBase::getWasTaken( uint32_t address ) const
{
uint32_t offset;
if (determineOffset( address, &offset ) != true)
return 0;
return Info[ offset ].wasTaken;
}
}
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