Method EvaluateLocation

IDEHelper/DbgModule.cpp:7023–7118

}

intptr DbgModule::EvaluateLocation(DbgSubprogram* dwSubprogram, const uint8* locData, int locDataLen, WdStackFrame* stackFrame, DbgAddrType* outAddrType, DbgEvalLocFlags flags)
{
	BP_ZONE("DebugTarget::EvaluateLocation");

	auto dbgModule = this;

	if (locDataLen == DbgLocationLenKind_SegPlusOffset)
	{
		BF_ASSERT(dbgModule->mDbgFlavor == DbgFlavor_MS);
		if (dbgModule->mDbgFlavor == DbgFlavor_MS)
		{
			COFF* coff = (COFF*)dbgModule;
			struct SegOfsData
			{
				uint32 mOfs;
				uint16 mSeg;
			};
			SegOfsData* segOfsData = (SegOfsData*)locData;

			*outAddrType = DbgAddrType_Target;
			return coff->GetSectionAddr(segOfsData->mSeg, segOfsData->mOfs);
		}
		else
		{
			*outAddrType = DbgAddrType_Target;
			return 0;
		}
	}

	CPURegisters* registers = NULL;
	if (stackFrame != NULL)
		registers = &stackFrame->mRegisters;

	if (locDataLen < 0)
	{
		if (registers == NULL)
			return 0;
		int64 ipAddr = stackFrame->GetSourcePC();

		const uint8* checkLocData = locData;
		int64 startLoc = (int64)GET_FROM(checkLocData, addr_target);
		int64 endLoc = startLoc + GET_FROM(checkLocData, uint16);

		BF_ASSERT(dwSubprogram != NULL);
		startLoc += dwSubprogram->mCompileUnit->mLowPC;
		endLoc += dwSubprogram->mCompileUnit->mLowPC;

		if ((ipAddr >= startLoc) && (ipAddr < endLoc))
		{
			locDataLen = -locDataLen - sizeof(addr_target) - sizeof(uint16);
			locData = checkLocData;
		}
		else
		{
			*outAddrType = DbgAddrType_OptimizedOut;
			return 0;
		}
	}