void PDBFileReader::ProcessSymbol(IDiaSymbol *symbol,DebugInfo &to)
{
DWORD section,offset,rva;
enum SymTagEnum tag;
ULONGLONG length = 0;
sU32 compilandId;
IDiaSymbol *compiland = 0;
BSTR name = 0, sourceName = 0;
sBool codeFlag;
symbol->get_symTag((DWORD *) &tag);
symbol->get_relativeVirtualAddress(&rva);
symbol->get_length(&length);
symbol->get_addressSection(§ion);
symbol->get_addressOffset(&offset);
// is the previous symbol desperately looking for a length? we can help!
if(DanglingLengthStart)
{
to.Symbols[to.Symbols.Count - 1].Size = rva - DanglingLengthStart;
DanglingLengthStart = 0;
}
// get length from type for data
if(tag == SymTagData)
{
IDiaSymbol *type;
if(symbol->get_type(&type) == S_OK)
{
type->get_length(&length);
type->Release();
}
// if length still zero, just guess and take number of bytes between
// this symbol and the next one.
if(!length)
DanglingLengthStart = rva;
}
compilandId = CompilandFromSectionOffset(section,offset,codeFlag);
Session->symbolById(compilandId,&compiland);
if(compiland)
compiland->get_name(&sourceName);
symbol->get_name(&name);
// fill out structure
sChar *nameStr = BStrToString(name,"<no name>");
sChar *sourceStr = BStrToString(sourceName,"<no source>");
if(tag == SymTagPublicSymbol)
{
length = 0;
DanglingLengthStart = rva;
}
DISymbol *outSym = to.Symbols.Add();
outSym->Name.Index = outSym->MangledName.Index = to.MakeString(nameStr);
outSym->FileNum = to.GetFileByName(sourceStr);
outSym->VA = rva;
outSym->Size = (sU32) length;
outSym->Class = codeFlag ? DIC_CODE : DIC_DATA;
outSym->NameSpNum = to.GetNameSpaceByName(nameStr);
// clean up
delete[] nameStr;
delete[] sourceStr;
if(compiland) compiland->Release();
if(sourceName) SysFreeString(sourceName);
if(name) SysFreeString(name);
}
void PDBFileReader::ReadEverything(DebugInfo &to)
{
ULONG celt;
Contribs = 0;
nContribs = 0;
// read section table
IDiaEnumTables *enumTables;
if(Session->getEnumTables(&enumTables) == S_OK)
{
VARIANT vIndex;
vIndex.vt = VT_BSTR;
vIndex.bstrVal = SysAllocString(L"Sections");
IDiaTable *secTable;
if(enumTables->Item(vIndex,&secTable) == S_OK)
{
LONG count;
secTable->get_Count(&count);
Contribs = new SectionContrib[count];
nContribs = 0;
IDiaSectionContrib *item;
while(SUCCEEDED(secTable->Next(1,(IUnknown **)&item,&celt)) && celt == 1)
{
SectionContrib &contrib = Contribs[nContribs++];
item->get_addressOffset(&contrib.Offset);
item->get_addressSection(&contrib.Section);
item->get_length(&contrib.Length);
item->get_compilandId(&contrib.Compiland);
BOOL code=FALSE,initData=FALSE,uninitData=FALSE;
item->get_code(&code);
item->get_initializedData(&initData);
item->get_uninitializedData(&uninitData);
if(code && !initData && !uninitData)
contrib.Type = DIC_CODE;
else if(!code && initData && !uninitData)
contrib.Type = DIC_DATA;
else if(!code && !initData && uninitData)
contrib.Type = DIC_BSS;
else
contrib.Type = DIC_UNKNOWN;
BSTR objFileName = 0;
IDiaSymbol *compiland = 0;
item->get_compiland(&compiland);
if(compiland)
{
compiland->get_name(&objFileName);
compiland->Release();
}
sChar *objFileStr = BStrToString(objFileName,"<noobjfile>");
contrib.ObjFile = to.GetFileByName(objFileStr);
delete[] objFileStr;
if(objFileName)
SysFreeString(objFileName);
item->Release();
}
secTable->Release();
}
SysFreeString(vIndex.bstrVal);
enumTables->Release();
}
// enumerate symbols by (virtual) address
IDiaEnumSymbolsByAddr *enumByAddr;
if(SUCCEEDED(Session->getSymbolsByAddr(&enumByAddr)))
{
IDiaSymbol *symbol;
// get first symbol to get first RVA (argh)
if(SUCCEEDED(enumByAddr->symbolByAddr(1,0,&symbol)))
{
DWORD rva;
if(symbol->get_relativeVirtualAddress(&rva) == S_OK)
{
symbol->Release();
// now, enumerate by rva.
if(SUCCEEDED(enumByAddr->symbolByRVA(rva,&symbol)))
{
do
{
ProcessSymbol(symbol,to);
symbol->Release();
if(FAILED(enumByAddr->Next(1,&symbol,&celt)))
break;
}
while(celt == 1);
}
}
else
symbol->Release();
}
enumByAddr->Release();
}
// clean up
delete[] Contribs;
}
