public uint GetSymbolAddress(ELFDynamicSymbolTableSection.Symbol theSymbol, FOS_System.String theSymbolName)
{
uint address = 0;
uint size = 0;
GetSymbolAddressAndSize(theSymbol, theSymbolName, ref address, ref size);
return address;
}
public bool GetSymbolAddressAndSize(ELFDynamicSymbolTableSection.Symbol theSymbol, FOS_System.String theSymbolName, ref uint address, ref uint size)
{
//BasicConsole.WriteLine("Searching for symbol...");
//BasicConsole.Write(" - Name : ");
//BasicConsole.WriteLine(theSymbolName);
//BasicConsole.WriteLine(" Searching executable's symbols...");
for (int i = 0; i < theFile.Sections.Count; i++)
{
ELFSection aSection = (ELFSection)theFile.Sections[i];
if (aSection is ELFSymbolTableSection)
{
ELFSymbolTableSection symTabSection = (ELFSymbolTableSection)aSection;
ELFStringTableSection strTabSection = (ELFStringTableSection)theFile.Sections[symTabSection.StringsSectionIndex];
for (int j = 0; j < symTabSection.Symbols.Count; j++)
{
ELFSymbolTableSection.Symbol aSymbol = (ELFSymbolTableSection.Symbol)symTabSection.Symbols[j];
if (aSymbol.Type == theSymbol.Type &&
aSymbol.Binding == ELFSymbolTableSection.SymbolBinding.Global &&
aSymbol.SectionIndex > 0)
{
if (strTabSection.IsMatch(aSymbol.NameIdx, theSymbolName))
{
//BasicConsole.WriteLine(" Found symbol.");
//BasicConsole.Write(" aSymbol Address : ");
uint result = ((uint)aSymbol.Value - theFile.BaseAddress) + BaseAddress;
//BasicConsole.WriteLine(result);
address = result;
size = aSymbol.Size;
return true;
}
}
}
}
}
for (int k = 0; k < SharedObjectDependencies.Count; k++)
{
//BasicConsole.WriteLine(" Searching shared object's symbols...");
ELFSharedObject SO = (ELFSharedObject)SharedObjectDependencies[k];
for (int i = 0; i < SO.TheFile.Sections.Count; i++)
{
ELFSection aSection = (ELFSection)SO.TheFile.Sections[i];
if (aSection is ELFSymbolTableSection)
{
ELFSymbolTableSection symTabSection = (ELFSymbolTableSection)aSection;
ELFStringTableSection strTabSection = (ELFStringTableSection)SO.TheFile.Sections[symTabSection.StringsSectionIndex];
for (int j = 0; j < symTabSection.Symbols.Count; j++)
{
ELFSymbolTableSection.Symbol aSymbol = (ELFSymbolTableSection.Symbol)symTabSection.Symbols[j];
if (aSymbol.Type == theSymbol.Type &&
aSymbol.Binding == ELFSymbolTableSection.SymbolBinding.Global &&
aSymbol.SectionIndex > 0)
{
if (strTabSection.IsMatch(aSymbol.NameIdx, theSymbolName))
{
//BasicConsole.WriteLine(" Found symbol.");
//BasicConsole.Write(" aSymbol Address : ");
uint result = ((uint)aSymbol.Value - SO.TheFile.BaseAddress) + SO.BaseAddress;
//BasicConsole.WriteLine(result);
address = result;
size = aSymbol.Size;
return true;
}
}
}
}
}
}
return false;
}
public void ReadSectionHeaders()
{
byte[] sectionsData = new byte[header.SecHeaderEntrySize * header.SecHeaderNumEntries];
theStream.Position = header.SecHeaderTableOffset;
int bytesRead = theStream.Read(sectionsData, 0, sectionsData.Length);
if (bytesRead == sectionsData.Length)
{
uint offset = 0;
while (offset < sectionsData.Length)
{
ELFSectionHeader newHeader = new ELFSectionHeader(sectionsData, ref offset);
ELFSection newSection = ELFSection.GetSection(newHeader);
if (Sections.Count == header.SecHeaderIdxForSecNameStrings)
{
if (!(newSection is ELFStringTableSection))
{
ExceptionMethods.Throw(new FOS_System.Exception("Expected Strings Table section was not a strings table section!"));
}
NamesTable = (ELFStringTableSection)newSection;
}
newSection.Read(theStream);
if (newSection is ELFDynamicSection)
{
DynamicSection = (ELFDynamicSection)newSection;
}
else if (newSection is ELFDynamicSymbolTableSection)
{
DynamicSymbolsSection = (ELFDynamicSymbolTableSection)newSection;
}
Sections.Add(newSection);
}
//BasicConsole.WriteLine();
#region Sections Output
//for (int i = 0; i < Sections.Count; i++)
//{
// ELFSection theSection = (ELFSection)Sections[i];
// ELFSectionHeader theHeader = theSection.Header;
// BasicConsole.WriteLine("ELF section: ");
// BasicConsole.Write(" - Name index : ");
// BasicConsole.WriteLine(theHeader.NameIndex);
// BasicConsole.Write(" - Name : ");
// BasicConsole.WriteLine(NamesTable[theHeader.NameIndex]);
// BasicConsole.Write(" - Type : ");
// BasicConsole.WriteLine((uint)theHeader.SectionType);
// BasicConsole.Write(" - Flags : ");
// BasicConsole.WriteLine((uint)theHeader.Flags);
// BasicConsole.Write(" - Offset : ");
// BasicConsole.WriteLine(theHeader.SectionFileOffset);
// BasicConsole.Write(" - Size : ");
// BasicConsole.WriteLine(theHeader.SectionSize);
// BasicConsole.Write(" - Load address : ");
// BasicConsole.WriteLine((uint)theHeader.LoadAddress);
// if (theSection is ELFSymbolTableSection)
// {
// #region ELFSymbolTableSection
// BasicConsole.WriteLine(" - Symbol table :");
// ELFSymbolTableSection theSymTable = (ELFSymbolTableSection)theSection;
// ELFStringTableSection theStringTable = (ELFStringTableSection)(Sections[theSymTable.StringsSectionIndex]);
// for (uint j = 0; j < theSymTable.Symbols.Count; j++)
// {
// ELFSymbolTableSection.Symbol theSym = theSymTable[j];
// BasicConsole.Write(" - Symbol : ");
// BasicConsole.WriteLine(theStringTable[theSym.NameIdx]);
// BasicConsole.Write(" - Type : ");
// BasicConsole.WriteLine((uint)theSym.Type);
// BasicConsole.Write(" - Binding : ");
// BasicConsole.WriteLine((uint)theSym.Binding);
// BasicConsole.Write(" - Section index : ");
// BasicConsole.WriteLine(theSym.SectionIndex);
// BasicConsole.Write(" - Value : ");
// BasicConsole.WriteLine((uint)theSym.Value);
// BasicConsole.Write(" - Size : ");
// BasicConsole.WriteLine(theSym.Size);
// }
// #endregion
// }
// else if (theSection is ELFRelocationAddendTableSection)
// {
// #region ELFRelocationAddendTableSection
// ELFRelocationAddendTableSection theRelASection = (ELFRelocationAddendTableSection)theSection;
// BasicConsole.WriteLine(" - Relocation (with addends) table :");
// BasicConsole.Write(" - Symbol table index : ");
// BasicConsole.WriteLine(theRelASection.SymbolTableSectionIndex);
// BasicConsole.Write(" - Section to relocate index : ");
// BasicConsole.WriteLine(theRelASection.SectionToRelocateIndex);
// for (uint j = 0; j < theRelASection.Relocations.Count; j++)
// {
// ELFRelocationAddendTableSection.RelocationAddend theRel = theRelASection[j];
// BasicConsole.WriteLine(" - Relocation : ");
// BasicConsole.Write(" - Type : ");
// BasicConsole.WriteLine((uint)theRel.Type);
// BasicConsole.Write(" - Symbol : ");
// BasicConsole.WriteLine(theRel.Symbol);
// BasicConsole.Write(" - Offset : ");
// BasicConsole.WriteLine((uint)theRel.Offset);
// BasicConsole.Write(" - Addend : ");
// BasicConsole.WriteLine(theRel.Addend);
// }
// #endregion
// }
// else if (theSection is ELFRelocationTableSection)
// {
// #region ELFRelocationTableSection
// ELFRelocationTableSection theRelSection = (ELFRelocationTableSection)theSection;
// BasicConsole.WriteLine(" - Relocation table :");
// BasicConsole.Write(" - Symbol table index : ");
// BasicConsole.WriteLine(theRelSection.SymbolTableSectionIndex);
// BasicConsole.Write(" - Section to relocate index : ");
// BasicConsole.WriteLine(theRelSection.SectionToRelocateIndex);
// for (uint j = 0; j < theRelSection.Relocations.Count; j++)
// {
// ELFRelocationTableSection.Relocation theRel = theRelSection[j];
// BasicConsole.WriteLine(" - Relocation : ");
// BasicConsole.Write(" - Type : ");
// BasicConsole.WriteLine((uint)theRel.Type);
// BasicConsole.Write(" - Symbol : ");
// BasicConsole.WriteLine(theRel.Symbol);
// BasicConsole.Write(" - Offset : ");
// BasicConsole.WriteLine((uint)theRel.Offset);
// }
// #endregion
// }
// if (theSection is ELFDynamicSection)
// {
// #region ELFDynamicSection
// BasicConsole.WriteLine(" - Dynamics table :");
// ELFDynamicSection theDynTable = (ELFDynamicSection)theSection;
// ELFDynamicSection.Dynamic StrTabDynamic = theDynTable.StrTabDynamic;
// ELFDynamicSection.Dynamic StrTabSizeDynamic = theDynTable.StrTabSizeDynamic;
// if (StrTabDynamic == null ||
// StrTabSizeDynamic == null)
// {
// Console.Default.WarningColour();
// BasicConsole.WriteLine("WARNING: Dynamic Table's String Table not found!");
// Console.Default.DefaultColour();
// }
// else
// {
// BasicConsole.Write(" - String table offset : ");
// BasicConsole.WriteLine(StrTabDynamic.Val_Ptr);
// BasicConsole.Write(" - String table size : ");
// BasicConsole.WriteLine(StrTabSizeDynamic.Val_Ptr);
// for (uint j = 0; j < theDynTable.Dynamics.Count; j++)
// {
// ELFDynamicSection.Dynamic theDyn = theDynTable[j];
// BasicConsole.WriteLine(" - Dynamic : ");
// BasicConsole.Write(" - Tag : ");
// BasicConsole.WriteLine((int)theDyn.Tag);
// BasicConsole.Write(" - Value or Pointer : ");
// BasicConsole.WriteLine(theDyn.Val_Ptr);
// }
// }
// #endregion
// }
// Hardware.Processes.Thread.Sleep(500);
//}
#endregion
}
else
{
ExceptionMethods.Throw(new FOS_System.Exception("Failed to read sections table data from file!"));
}
}
