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Analyze2.cpp
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Analyze2.cpp
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void __fastcall AddFieldXref(PFIELDINFO fInfo, DWORD ProcAdr, int ProcOfs, char type);
//---------------------------------------------------------------------------
//structure for saving context of all registers (branch instruction)
typedef struct
{
int sp;
DWORD adr;
RINFO registers[32];
} RCONTEXT, *PRCONTEXT;
//---------------------------------------------------------------------------
PRCONTEXT __fastcall GetCtx(TList* Ctx, DWORD Adr)
{
for (int n = 0; n < Ctx->Count; n++)
{
PRCONTEXT rinfo = (PRCONTEXT)Ctx->Items[n];
if (rinfo->adr == Adr) return rinfo;
}
return 0;
}
//---------------------------------------------------------------------------
void __fastcall SetRegisterValue(PRINFO regs, int Idx, DWORD Value)
{
if (Idx >= 16 && Idx <= 19)
{
regs[Idx - 16].value = Value;
regs[Idx - 12].value = Value;
regs[Idx - 8].value = Value;
regs[Idx].value = Value;
return;
}
if (Idx >= 20 && Idx <= 23)
{
regs[Idx - 8].value = Value;
regs[Idx].value = Value;
return;
}
if (Idx >= 0 && Idx <= 3)
{
regs[Idx].value = Value;
regs[Idx + 8].value = Value;
regs[Idx + 16].value = Value;
return;
}
if (Idx >= 4 && Idx <= 7)
{
regs[Idx].value = Value;
regs[Idx + 4].value = Value;
regs[Idx + 12].value = Value;
return;
}
if (Idx >= 8 && Idx <= 11)
{
regs[Idx - 8].value = Value;
regs[Idx - 4].value = Value;
regs[Idx].value = Value;
regs[Idx + 8].value = Value;
return;
}
if (Idx >= 12 && Idx <= 15)
{
regs[Idx].value = Value;
regs[Idx + 8].value = Value;
return;
}
}
//---------------------------------------------------------------------------
//Possible values
//'V' - Virtual table base (for calls processing)
//'v' - var
//'L' - lea local var
//'l' - local var
//'A' - lea argument
//'a' - argument
//'I' - Integer
void __fastcall SetRegisterSource(PRINFO regs, int Idx, char Value)
{
if (Idx >= 16 && Idx <= 19)
{
regs[Idx - 16].source = Value;
regs[Idx - 12].source = Value;
regs[Idx - 8].source = Value;
regs[Idx].source = Value;
return;
}
if (Idx >= 20 && Idx <= 23)
{
regs[Idx - 8].source = Value;
regs[Idx].source = Value;
return;
}
if (Idx >= 0 && Idx <= 3)
{
regs[Idx].source = Value;
regs[Idx + 8].source = Value;
regs[Idx + 16].source = Value;
return;
}
if (Idx >= 4 && Idx <= 7)
{
regs[Idx].source = Value;
regs[Idx + 4].source = Value;
regs[Idx + 12].source = Value;
return;
}
if (Idx >= 8 && Idx <= 11)
{
regs[Idx - 8].source = Value;
regs[Idx - 4].source = Value;
regs[Idx].source = Value;
regs[Idx + 8].source = Value;
return;
}
if (Idx >= 12 && Idx <= 15)
{
regs[Idx].source = Value;
regs[Idx + 8].source = Value;
return;
}
}
//---------------------------------------------------------------------------
void __fastcall SetRegisterType(PRINFO regs, int Idx, String Value)
{
if (Idx >= 16 && Idx <= 19)
{
regs[Idx - 16].type = Value;
regs[Idx - 12].type = Value;
regs[Idx - 8].type = Value;
regs[Idx].type = Value;
return;
}
if (Idx >= 20 && Idx <= 23)
{
regs[Idx - 8].type = Value;
regs[Idx].type = Value;
return;
}
if (Idx >= 0 && Idx <= 3)
{
regs[Idx].type = Value;
regs[Idx + 8].type = Value;
regs[Idx + 16].type = Value;
return;
}
if (Idx >= 4 && Idx <= 7)
{
regs[Idx].type = Value;
regs[Idx + 4].type = Value;
regs[Idx + 12].type = Value;
return;
}
if (Idx >= 8 && Idx <= 11)
{
regs[Idx - 8].type = Value;
regs[Idx - 4].type = Value;
regs[Idx].type = Value;
regs[Idx + 8].type = Value;
return;
}
if (Idx >= 12 && Idx <= 15)
{
regs[Idx].type = Value;
regs[Idx + 8].type = Value;
return;
}
}
//---------------------------------------------------------------------------
void __fastcall TFMain_11011981::AnalyzeProc2(DWORD fromAdr, bool addArg, bool AnalyzeRetType)
{
//saved context
TList *sctx = new TList;
for (int n = 0; n < 3; n++)
{
if (!AnalyzeProc2(fromAdr, addArg, AnalyzeRetType, sctx)) break;
}
//delete sctx
CleanupList<RCONTEXT>(sctx);
}
//---------------------------------------------------------------------------
bool __fastcall TFMain_11011981::AnalyzeProc2(DWORD fromAdr, bool addArg, bool AnalyzeRetType, TList *sctx)
{
BYTE op, b1, b2;
char source;
bool reset, bpBased, vmt, fContinue = false;
WORD bpBase;
int n, num, instrLen, instrLen1, instrLen2, _ap, _procSize;
int reg1Idx, reg2Idx;
int sp = -1, fromIdx = -1; //fromIdx - index of register in instruction mov eax,reg (for processing call @IsClass)
DWORD b;
int fromPos, curPos, Pos;
DWORD curAdr;
DWORD lastMovAdr = 0;
DWORD procAdr, Val, Adr, Adr1;
DWORD reg, varAdr, classAdr, vmtAdr, lastAdr = 0;
PInfoRec recN, recN1;
PLOCALINFO locInfo;
PARGINFO argInfo;
PFIELDINFO fInfo = 0;
PRCONTEXT rinfo;
RINFO rtmp;
String comment, typeName, className = "", varName, varType;
String _eax_Type, _edx_Type, _ecx_Type, sType;
RINFO registers[32];
RINFO stack[256];
DISINFO DisInfo, DisInfo1;
fromPos = Adr2Pos(fromAdr);
if (fromPos < 0) return false;
if (IsFlagSet(cfPass2, fromPos)) return false;
if (IsFlagSet(cfEmbedded, fromPos)) return false;
if (IsFlagSet(cfExport, fromPos)) return false;
//b1 = Code[fromPos];
//b2 = Code[fromPos + 1];
//if (!b1 && !b2) return false;
//Import - return ret type of function
if (IsFlagSet(cfImport, fromPos)) return false;
recN = GetInfoRec(fromAdr);
//if recN = 0 (Interface Methods!!!) then return
if (!recN || !recN->procInfo) return false;
//Procedure from Knowledge Base not analyzed
if (recN && recN->kbIdx != -1) return false;
//if (!IsFlagSet(cfPass1, fromPos))
//???
SetFlag(cfProcStart | cfPass2, fromPos);
//If function name contains class name get it
className = ExtractClassName(recN->GetName());
bpBased = (recN->procInfo->flags & PF_BPBASED);
bpBase = (recN->procInfo->bpBase);
rtmp.result = 0; rtmp.source = 0; rtmp.value = 0; rtmp.type = "";
for (n = 0; n < 32; n++) registers[n] = rtmp;
//Get args
_eax_Type = _edx_Type = _ecx_Type = "";
BYTE callKind = recN->procInfo->flags & 7;
if (recN->procInfo->args && !callKind)
{
for (n = 0; n < recN->procInfo->args->Count; n++)
{
PARGINFO argInfo = (PARGINFO)recN->procInfo->args->Items[n];
if (argInfo->Ndx == 0)
{
if (className != "")
registers[16].type = className;
else
registers[16].type = argInfo->TypeDef;
_eax_Type = registers[16].type;
//var
if (argInfo->Tag == 0x22) registers[16].source = 'v';
continue;
}
if (argInfo->Ndx == 1)
{
registers[18].type = argInfo->TypeDef;
_edx_Type = registers[18].type;
//var
if (argInfo->Tag == 0x22) registers[18].source = 'v';
continue;
}
if (argInfo->Ndx == 2)
{
registers[17].type = argInfo->TypeDef;
_ecx_Type = registers[17].type;
//var
if (argInfo->Tag == 0x22) registers[17].source = 'v';
continue;
}
break;
}
}
else if (className != "")
{
registers[16].type = className;
}
_procSize = GetProcSize(fromAdr);
curPos = fromPos; curAdr = fromAdr;
while (1)
{
if (curAdr >= CodeBase + TotalSize) break;
//Skip exception table
if (IsFlagSet(cfETable, curPos))
{
//dd num
num = *((int*)(Code + curPos));
curPos += 4 + 8*num; curAdr += 4 + 8*num;
continue;
}
b1 = Code[curPos];
b2 = Code[curPos + 1];
if (!b1 && !b2 && !lastAdr) break;
instrLen = Disasm.Disassemble(Code + curPos, (__int64)curAdr, &DisInfo, 0);
//if (!instrLen) break;
if (!instrLen)
{
curPos++; curAdr++;
continue;
}
op = Disasm.GetOp(DisInfo.Mnem);
//Code
SetFlags(cfCode, curPos, instrLen);
//Instruction begin
SetFlag(cfInstruction, curPos);
if (curAdr >= lastAdr) lastAdr = 0;
if (op == OP_JMP)
{
if (curAdr == fromAdr) break;
if (DisInfo.OpType[0] == otMEM)
{
if (Adr2Pos(DisInfo.Offset) < 0 && (!lastAdr || curAdr == lastAdr)) break;
}
if (DisInfo.OpType[0] == otIMM)
{
Adr = DisInfo.Immediate;
if (Adr2Pos(Adr) < 0 && (!lastAdr || curAdr == lastAdr)) break;
if (GetSegmentNo(Adr) != 0 && GetSegmentNo(fromAdr) != GetSegmentNo(Adr) && (!lastAdr || curAdr == lastAdr)) break;
if (Adr < fromAdr && (!lastAdr || curAdr == lastAdr)) break;
curPos += instrLen; curAdr += instrLen;
continue;
}
}
if (DisInfo.Ret)
{
//End of proc
if (!lastAdr || curAdr == lastAdr)
{
if (AnalyzeRetType)
{
//Åñëè òèï ðåãèñòðà eax íå ïóñòîé, íàõîäèì áëèæàéøóþ ñâåðõó èíñòðóêöèþ åãî èíöèàëèçàöèè
if (registers[16].type != "")
{
for (Pos = curPos - 1; Pos >= fromPos; Pos--)
{
b = Flags[Pos];
if ((b & cfInstruction) & !(b & cfSkip))
{
Disasm.Disassemble(Code + Pos, (__int64)Pos2Adr(Pos), &DisInfo, 0);
//If branch - break
if (DisInfo.Branch) break;
//If call
//Other cases (call [reg+Ofs]; call [Adr]) need to add
if (DisInfo.Call)
{
Adr = DisInfo.Immediate;
if (IsValidCodeAdr(Adr))
{
recN1 = GetInfoRec(Adr);
if (recN1 && recN1->procInfo/*recN1->kind == ikFunc*/)
{
typeName = recN1->type;
recN1 = GetInfoRec(fromAdr);
if (!(recN1->procInfo->flags & (PF_EVENT | PF_DYNAMIC)) &&
recN1->kind != ikConstructor && recN1->kind != ikDestructor)
{
recN1->kind = ikFunc;
recN1->type = typeName;
}
}
}
}
else if (b & cfSetA)
{
recN1 = GetInfoRec(fromAdr);
if (!(recN1->procInfo->flags & (PF_EVENT | PF_DYNAMIC)) &&
recN1->kind != ikConstructor && recN1->kind != ikDestructor)
{
recN1->kind = ikFunc;
recN1->type = registers[16].type;
}
}
}
}
}
}
break;
}
if (!IsFlagSet(cfSkip, curPos)) sp = -1;
}
//cfBracket
if (IsFlagSet(cfBracket, curPos))
{
if (op == OP_PUSH && sp < 255)
{
reg1Idx = DisInfo.OpRegIdx[0];
sp++;
stack[sp] = registers[reg1Idx];
}
else if (op == OP_POP && sp >= 0)
{
reg1Idx = DisInfo.OpRegIdx[0];
registers[reg1Idx] = stack[sp];
sp--;
}
curPos += instrLen; curAdr += instrLen;
continue;
}
//Ïðîâåðèì, íå ïîïàë ëè âíóòðü èíñòðóêöèè Fixup èëè ThreadVar
bool NameInside = false;
for (int k = 1; k < instrLen; k++)
{
if (Infos[curPos + k])
{
NameInside = true;
break;
}
}
reset = ((op & OP_RESET) != 0);
if (op == OP_MOV) lastMovAdr = DisInfo.Offset;
//If loc then try get context
if (curAdr != fromAdr && IsFlagSet(cfLoc, curPos))
{
rinfo = GetCtx(sctx, curAdr);
if (rinfo)
{
sp = rinfo->sp;
for (n = 0; n < 32; n++) registers[n] = rinfo->registers[n];
}
//context not found - set flag to continue on the next step
else
{
fContinue = true;
}
}
if (b1 == 0xFF && (b2 & 0x38) == 0x20 && DisInfo.OpType[0] == otMEM && IsValidImageAdr(DisInfo.Offset)) //near absolute indirect jmp (Case)
{
if (!IsValidCodeAdr(DisInfo.Offset)) break;
DWORD cTblAdr = 0, jTblAdr = 0;
Pos = curPos + instrLen;
Adr = curAdr + instrLen;
//Àäðåñ òàáëèöû - ïîñëåäíèå 4 áàéòà èíñòðóêöèè
jTblAdr = *((DWORD*)(Code + Pos - 4));
//Àíàëèçèðóåì ïðîìåæóòîê íà ïðåäìåò òàáëèöû cTbl
if (Adr <= lastMovAdr && lastMovAdr < jTblAdr) cTblAdr = lastMovAdr;
//Åñëè åñòü cTblAdr, ïðîïóñêàåì ýòó òàáëèöó
BYTE CTab[256];
if (cTblAdr)
{
int CNum = jTblAdr - cTblAdr;
Pos += CNum; Adr += CNum;
}
for (int k = 0; k < 4096; k++)
{
//Loc - end of table
if (IsFlagSet(cfLoc, Pos)) break;
Adr1 = *((DWORD*)(Code + Pos));
//Validate Adr1
if (!IsValidCodeAdr(Adr1) || Adr1 < fromAdr) break;
//Set cfLoc
SetFlag(cfLoc, Adr2Pos(Adr1));
//Save context
if (!GetCtx(sctx, Adr1))
{
rinfo = new RCONTEXT;
rinfo->sp = sp;
rinfo->adr = Adr1;
for (n = 0; n < 32; n++) rinfo->registers[n] = registers[n];
sctx->Add((void*)rinfo);
}
Pos += 4; Adr += 4;
if (Adr1 > lastAdr) lastAdr = Adr1;
}
if (Adr > lastAdr) lastAdr = Adr;
curPos = Pos; curAdr = Adr;
continue;
}
if (b1 == 0x68) //try block (push loc_TryBeg)
{
DWORD NPos = curPos + instrLen;
//check that next instruction is push fs:[reg] or retn
if ((Code[NPos] == 0x64 &&
Code[NPos + 1] == 0xFF &&
((Code[NPos + 2] >= 0x30 && Code[NPos + 2] <= 0x37) || Code[NPos + 2] == 0x75)) ||
Code[NPos] == 0xC3)
{
Adr = DisInfo.Immediate; //Adr=@1
if (IsValidCodeAdr(Adr))
{
if (Adr > lastAdr) lastAdr = Adr;
Pos = Adr2Pos(Adr);
if (Pos >= 0 && Pos - NPos < MAX_DISASSEMBLE)
{
if (Code[Pos] == 0xE9) //jmp Handle...
{
//Disassemble jmp
instrLen1 = Disasm.Disassemble(Code + Pos, (__int64)Adr, &DisInfo, 0);
recN = GetInfoRec(DisInfo.Immediate);
if (recN)
{
if (recN->SameName("@HandleFinally"))
{
//jmp HandleFinally
Pos += instrLen1; Adr += instrLen1;
//jmp @2
instrLen2 = Disasm.Disassemble(Code + Pos, (__int64)Adr, &DisInfo, 0);
Adr += instrLen2;
if (Adr > lastAdr) lastAdr = Adr;
}
else if (recN->SameName("@HandleAnyException") || recN->SameName("@HandleAutoException"))
{
//jmp HandleAnyException
Pos += instrLen1; Adr += instrLen1;
//call DoneExcept
instrLen2 = Disasm.Disassemble(Code + Pos, (__int64)Adr, 0, 0);
Adr += instrLen2;
if (Adr > lastAdr) lastAdr = Adr;
}
else if (recN->SameName("@HandleOnException"))
{
//jmp HandleOnException
Pos += instrLen1; Adr += instrLen1;
//dd num
num = *((int*)(Code + Pos)); Pos += 4;
if (Adr + 4 + 8 * num > lastAdr) lastAdr = Adr + 4 + 8 * num;
for (int k = 0; k < num; k++)
{
//dd offset ExceptionInfo
Adr = *((DWORD*)(Code + Pos)); Pos += 4;
if (IsValidImageAdr(Adr))
{
recN1 = GetInfoRec(Adr);
if (recN1 && recN1->kind == ikVMT) className = recN1->GetName();
}
//dd offset ExceptionProc
procAdr = *((DWORD*)(Code + Pos)); Pos += 4;
if (IsValidImageAdr(procAdr))
{
//Save context
if (!GetCtx(sctx, procAdr))
{
rinfo = new RCONTEXT;
rinfo->sp = sp;
rinfo->adr = procAdr;
for (n = 0; n < 32; n++) rinfo->registers[n] = registers[n];
//eax
rinfo->registers[16].value = GetClassAdr(className);
rinfo->registers[16].type = className;
sctx->Add((void*)rinfo);
}
}
}
}
}
}
}
}
curPos += instrLen; curAdr += instrLen;
continue;
}
}
//branch
if (DisInfo.Branch)
{
Adr = DisInfo.Immediate;
if (IsValidCodeAdr(Adr))
{
_ap = Adr2Pos(Adr);
//SetFlag(cfLoc, _ap);
//recN1 = GetInfoRec(Adr);
//if (!recN1) recN1 = new InfoRec(_ap, ikUnknown);
//recN1->AddXref('C', fromAdr, curAdr - fromAdr);
//Save context
if (!GetCtx(sctx, Adr))
{
rinfo = new RCONTEXT;
rinfo->sp = sp;
rinfo->adr = Adr;
for (n = 0; n < 32; n++) rinfo->registers[n] = registers[n];
sctx->Add((void*)rinfo);
}
if (Adr >= fromAdr && Adr > lastAdr) lastAdr = Adr;
}
curPos += instrLen; curAdr += instrLen;
continue;
}
if (registers[16].type != "" && registers[16].type[1] == '#')
{
DWORD dd = *((DWORD*)(registers[16].type.c_str()));
//Åñëè áûë âûçîâ ôóíêöèè @GetTls, ñìîòðèì ñëåä. èíñòðóêöèþ âèäà [eax+N]
if (dd == 'SLT#')
{
//Åñëè íåò âíóòðåííåãî èìåíè (Fixup, ThreadVar)
if (!NameInside)
{
//Destination (GlobalLists := TList.Create)
//Source (GlobalLists.Add)
if ((DisInfo.OpType[0] == otMEM || DisInfo.OpType[1] == otMEM) && DisInfo.BaseReg == 16)
{
_ap = Adr2Pos(curAdr); assert(_ap >= 0);
recN1 = GetInfoRec(curAdr + 1);
if (!recN1) recN1 = new InfoRec(_ap + 1, ikThreadVar);
if (!recN1->HasName()) recN1->SetName(String("threadvar_") + DisInfo.Offset);
}
}
SetRegisterValue(registers, 16, 0xFFFFFFFF);
registers[16].type = "";
curPos += instrLen; curAdr += instrLen;
continue;
}
}
//Call
if (DisInfo.Call)
{
Adr = DisInfo.Immediate;
if (IsValidImageAdr(Adr))
{
recN = GetInfoRec(Adr);
if (recN && recN->procInfo)
{
int retBytes = (int)recN->procInfo->retBytes;
if (retBytes != -1 && sp >= retBytes)
sp -= retBytes;
else
sp = -1;
//for constructor type is in eax
if (recN->kind == ikConstructor)
{
//Åñëè dl = 1, ðåãèñòð eax ïîñëå âûçîâà èñïîëüçóåòñÿ
if (registers[2].value == 1)
{
classAdr = GetClassAdr(registers[16].type);
if (IsValidImageAdr(classAdr))
{
//Add xref to vmt info
recN1 = GetInfoRec(classAdr);
recN1->AddXref('D', Adr, 0);
comment = registers[16].type + ".Create";
AddPicode(curPos, OP_CALL, comment, 0);
AnalyzeTypes(fromAdr, curPos, Adr, registers);
}
}
SetFlag(cfSetA, curPos);
}
else
{
//Found @Halt0 - exit
if (recN->SameName("@Halt0") && fromAdr == EP && !lastAdr) break;
DWORD dynAdr;
if (recN->SameName("@ClassCreate"))
{
SetRegisterType(registers, 16, className);
SetFlag(cfSetA, curPos);
}
else if (recN->SameName("@CallDynaInst") ||
recN->SameName("@CallDynaClass"))
{
if (DelphiVersion <= 5)
comment = GetDynaInfo(GetClassAdr(registers[16].type), registers[11].value, &dynAdr); //bx
else
comment = GetDynaInfo(GetClassAdr(registers[16].type), registers[14].value, &dynAdr); //si
AddPicode(curPos, OP_CALL, comment, dynAdr);
SetRegisterType(registers, 16, "");
}
else if (recN->SameName("@FindDynaInst") ||
recN->SameName("@FindDynaClass"))
{
comment = GetDynaInfo(GetClassAdr(registers[16].type), registers[10].value, &dynAdr); //dx
AddPicode(curPos, OP_CALL, comment, dynAdr);
SetRegisterType(registers, 16, "");
}
//@XStrArrayClr
else if (recN->SameName("@LStrArrayClr") || recN->SameName("@WStrArrayClr") || recN->SameName("@UStrArrayClr"))
{
DWORD arrAdr = registers[16].value;
int cnt = registers[18].value;
//Direct address???
if (IsValidImageAdr(arrAdr))
{
}
//Local vars
else if ((registers[16].source & 0xDF) == 'L')
{
recN1 = GetInfoRec(fromAdr);
int aofs = registers[16].value;
for (int aa = 0; aa < cnt; aa++, aofs += 4)
{
if (recN->SameName("@LStrArrayClr"))
recN1->procInfo->AddLocal(aofs, 4, "", "AnsiString");
else if (recN->SameName("@WStrArrayClr"))
recN1->procInfo->AddLocal(aofs, 4, "", "WideString");
else if (recN->SameName("@UStrArrayClr"))
recN1->procInfo->AddLocal(aofs, 4, "", "UString");
}
}
SetRegisterType(registers, 16, "");
}
//@TryFinallyExit
else if (recN->SameName("@TryFinallyExit"))
{
//Find first jxxx
for (Pos = curPos - 1; Pos >= fromPos; Pos--)
{
b = Flags[Pos];
if (b & cfInstruction)
{
instrLen1 = Disasm.Disassemble(Code + Pos, (__int64)Pos2Adr(Pos), &DisInfo, 0);
if (DisInfo.Conditional) break;
SetFlags(cfSkip | cfFinallyExit, Pos, instrLen1);
}
}
//@TryFinallyExit + jmp XXXXXXXX
instrLen += Disasm.Disassemble(Code + curPos + instrLen, (__int64)(Pos2Adr(curPos) + instrLen), &DisInfo, 0);
SetFlags(cfSkip | cfFinallyExit, curPos, instrLen);
}
else
{
String retType = AnalyzeTypes(fromAdr, curPos, Adr, registers);
recN1 = GetInfoRec(fromAdr);
for (int mm = 16; mm <= 18; mm++)
{
if (registers[mm].result == 1)
{
if ((registers[mm].source & 0xDF) == 'L')
{
recN1->procInfo->AddLocal((int)registers[mm].value, 4, "", registers[mm].type);
}
else if ((registers[mm].source & 0xDF) == 'A')
recN1->procInfo->AddArg(0x21, (int)registers[mm].value, 4, "", registers[mm].type);
}
}
SetRegisterType(registers, 16, retType);
}
}
}
else
{
sp = -1;
SetRegisterType(registers, 16, "");
}
}
//call Memory
else if (DisInfo.OpType[0] == otMEM && DisInfo.IndxReg == -1)
{
sp = -1;
//call [Offset]
if (DisInfo.BaseReg == -1)
{
}
//call [BaseReg + Offset]
else
{
classAdr = registers[DisInfo.BaseReg].value;
SetRegisterType(registers, 16, "");
if (IsValidCodeAdr(classAdr) && registers[DisInfo.BaseReg].source == 'V')
{
recN = GetInfoRec(classAdr);
if (recN && recN->vmtInfo && recN->vmtInfo->methods)
{
for (int mm = 0; mm < recN->vmtInfo->methods->Count; mm++)
{
PMethodRec recM = (PMethodRec)recN->vmtInfo->methods->Items[mm];
if (recM->kind == 'V' && recM->id == (int)DisInfo.Offset)
{
recN1 = GetInfoRec(recM->address);
if (recM->name != "")
comment = recM->name;
else
{
if (recN1->HasName())
comment = recN1->GetName();
else
comment = GetClsName(classAdr) + ".sub_" + Val2Str8(recM->address);
}
AddPicode(curPos, OP_CALL, comment, recM->address);
recN1->AddXref('V', fromAdr, curAdr - fromAdr);
if (recN1->kind == ikFunc) SetRegisterType(registers, 16, recN1->type);
break;
}
}
}
registers[DisInfo.BaseReg].source = 0;
}
else
{
int callOfs = DisInfo.Offset;
typeName = TrimTypeName(registers[DisInfo.BaseReg].type);
if (typeName != "" && callOfs > 0)
{
Pos = GetNearestUpInstruction(curPos, fromPos, 1); Adr = Pos2Adr(Pos);
instrLen1 = Disasm.Disassemble(Code + Pos, (__int64)Adr, &DisInfo, 0);
if (DisInfo.Offset == callOfs + 4)
{
fInfo = GetField(typeName, callOfs, &vmt, &vmtAdr, "");
if (fInfo)
{
if (fInfo->Name != "") AddPicode(curPos, OP_CALL, typeName + "." + fInfo->Name, 0);
if (vmt)
AddFieldXref(fInfo, fromAdr, curAdr - fromAdr, 'C');
else
delete fInfo;
}
else if (vmt)
{
fInfo = AddField(fromAdr, curAdr - fromAdr, typeName, FIELD_PUBLIC, callOfs, -1, "", "");
if (fInfo) AddFieldXref(fInfo, fromAdr, curAdr - fromAdr, 'C');
}
}
}
}
}
}
SetRegisterSource(registers, 16, 0);
SetRegisterSource(registers, 17, 0);
SetRegisterSource(registers, 18, 0);
SetRegisterValue(registers, 16, 0xFFFFFFFF);
curPos += instrLen; curAdr += instrLen;
continue;
}
sType = String(DisInfo.sSize);
//floating point operations
if (DisInfo.Float)
{
float singleVal;
long double extendedVal;
String fVal = "";
switch (DisInfo.OpSize)
{
case 4:
sType = "Single";
break;
//Double or Comp???
case 8:
sType = "Double";
break;
case 10:
sType = "Extended";
break;
default:
sType = "Float";
break;
}
Adr = DisInfo.Offset;
_ap = Adr2Pos(Adr);
//fxxx [Adr]
if (DisInfo.BaseReg == -1 && DisInfo.IndxReg == -1)
{
if (IsValidImageAdr(Adr))
{
if (_ap >= 0)
{
switch (DisInfo.OpSize)
{
case 4:
singleVal = 0; memmove((void*)&singleVal, Code + _ap, 4);
fVal = FloatToStr(singleVal);
break;
//Double or Comp???
case 8:
break;
case 10:
try
{
extendedVal = 0; memmove((void*)&extendedVal, Code + _ap, 10);
fVal = FloatToStr(extendedVal);
}
catch (Exception &E)
{
fVal = "Impossible!";
}
break;
}
SetFlags(cfData, _ap, DisInfo.OpSize);
recN = GetInfoRec(Adr);
if (!recN) recN = new InfoRec(_ap, ikData);
if (!recN->HasName()) recN->SetName(fVal);
if (recN->type == "") recN->type = sType;
if (!IsValidCodeAdr(Adr)) recN->AddXref('D', fromAdr, curAdr - fromAdr);
}
else
{
recN = AddToBSSInfos(Adr, MakeGvarName(Adr), sType);
if (recN) recN->AddXref('C', fromAdr, curAdr - fromAdr);
}
}
}
else if (DisInfo.BaseReg != -1)
{
//fxxxx [BaseReg + Offset]
if (DisInfo.IndxReg == -1)
{
//fxxxx [ebp - Offset]
if (bpBased && DisInfo.BaseReg == 21 && (int)DisInfo.Offset < 0)
{
recN1 = GetInfoRec(fromAdr);
recN1->procInfo->AddLocal((int)DisInfo.Offset, DisInfo.OpSize, "", sType);
}
//fxxx [esp + Offset]
else if (DisInfo.BaseReg == 20)
{
dummy = 1;
}
else
{
//fxxxx [BaseReg]
if (!DisInfo.Offset)
{
varAdr = registers[DisInfo.BaseReg].value;
if (IsValidImageAdr(varAdr))
{
_ap = Adr2Pos(varAdr);
if (_ap >= 0)
{
recN1 = GetInfoRec(varAdr);
if (!recN1) recN1 = new InfoRec(_ap, ikData);
MakeGvar(recN1, varAdr, curAdr);
recN1->type = sType;
if (!IsValidCodeAdr(varAdr)) recN1->AddXref('D', fromAdr, curAdr - fromAdr);
}
else
{
recN1 = AddToBSSInfos(varAdr, MakeGvarName(varAdr), sType);
if (recN1) recN1->AddXref('C', fromAdr, curAdr - fromAdr);
}
}
}
//fxxxx [BaseReg + Offset]
else if ((int)DisInfo.Offset > 0)
{
typeName = TrimTypeName(registers[DisInfo.BaseReg].type);
if (typeName != "")
{
fInfo = GetField(typeName, (int)DisInfo.Offset, &vmt, &vmtAdr, "");
if (fInfo)
{
if (vmt)
{
if (CanReplace(fInfo->Type, sType)) fInfo->Type = sType;
AddFieldXref(fInfo, fromAdr, curAdr - fromAdr, 'C');
}
else
delete fInfo;
//if (vmtAdr) typeName = GetClsName(vmtAdr);
AddPicode(curPos, 0, typeName, DisInfo.Offset);
}
else if (vmt)
{
fInfo = AddField(fromAdr, curAdr - fromAdr, typeName, FIELD_PUBLIC, (int)DisInfo.Offset, -1, "", sType);
if (fInfo)
{
AddFieldXref(fInfo, fromAdr, curAdr - fromAdr, 'C');
AddPicode(curPos, 0, typeName, DisInfo.Offset);
}
}
}
}
//fxxxx [BaseReg - Offset]
else
{
}
}
}
//fxxxx [BaseReg + IndxReg*Scale + Offset]
else
{
}
}
curPos += instrLen; curAdr += instrLen;
continue;
}
//No operands
if (DisInfo.OpNum == 0)
{
//cdq
if (op == OP_CDQ)
{
SetRegisterSource(registers, 16, 'I');
SetRegisterValue(registers, 16, 0xFFFFFFFF);
SetRegisterType(registers, 16, "Integer");
SetRegisterSource(registers, 18, 'I');