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/*! @file SymbolTable.cc
* @brief SymbolTable Implementation
*
* This file contains ...
*/
#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rld.h>
#include "SymbolTable.h"
namespace Coverage {
SymbolTable::SymbolTable()
{
}
SymbolTable::~SymbolTable()
{
}
void SymbolTable::addSymbol(
const std::string& symbol,
const uint32_t start,
const uint32_t length
)
{
uint32_t end = 0;
symbol_entry_t entry;
symbolInfo_t symbolData;
// Add an entry to the address map.
end = start + length - 1;
entry.low = start;
entry.high = end;
entry.symbol = symbol;
contents[ end ] = entry;
// Add an entry to the symbol information map.
symbolData.startingAddress = start;
symbolData.length = length;
for (auto& symData : info[ symbol ]) {
// The starting address could differ since we strip any suffixes beginning
// with a '.'
if (symData.startingAddress != start) {
continue;
}
if (symData.length != length) {
std::ostringstream what;
what << "Different lengths for the symbol "
<< symbol
<< " (" << symData.length
<< " and " << length
<< ")";
throw rld::error( what, "SymbolTable::addSymbol" );
}
}
info[ symbol ].push_back( symbolData );
}
SymbolTable::symbolInfo* SymbolTable::getInfo(
const std::string& symbol
)
{
info_t::iterator it = info.find( symbol );
if (it == info.end())
return NULL;
else
return (&(it->second));
}
uint32_t SymbolTable::getLength(
const std::string& symbol
)
{
info_t::iterator it = info.find( symbol );
if (it == info.end())
return 0;
else
return ((*it).second.front().length);
}
std::string SymbolTable::getSymbol(
uint32_t address
)
{
contents_t::iterator it;
// Ensure that the symbol table is not empty.
if ( contents.size() == 0 )
return "";
// Find the first entry whose end address is greater
// than the specified address.
it = contents.lower_bound( address );
// If an entry was found and its low address is less than or
// equal to the specified address, then return the symbol.
if ((it != contents.end()) && ((it->second).low <= address ))
return (it->second).symbol;
return "";
}
void SymbolTable::dumpSymbolTable( void )
{
symbolInfo symbolTable;
symbolInfoIterator_t symbolIterator;
infoIterator_t infoIterator;
for (infoIterator = info.begin() ; infoIterator != info.end(); infoIterator++)
{
for (symbolIterator = infoIterator->second.begin() ; symbolIterator != infoIterator->second.end(); symbolIterator++)
{
fprintf( stdout, "%s:\tStarting address = %#x\tLength = %u\n", infoIterator->first.c_str(), symbolIterator->startingAddress, symbolIterator->length );
}
}
}
}
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