private bool FindMatchingInterfaceSlot(IntPtr moduleHandle, NativeReader nativeLayoutReader, ref NativeParser entryParser, ref ExternalReferencesTable extRefs, ref RuntimeTypeHandle declaringType, ref MethodNameAndSignature methodNameAndSignature, RuntimeTypeHandle openTargetTypeHandle, RuntimeTypeHandle[] targetTypeInstantiation, bool variantDispatch)
{
uint numTargetImplementations = entryParser.GetUnsigned();
for (uint j = 0; j < numTargetImplementations; j++)
{
uint nameAndSigToken = extRefs.GetRvaFromIndex(entryParser.GetUnsigned());
MethodNameAndSignature targetMethodNameAndSignature = GetMethodNameAndSignatureFromNativeReader(nativeLayoutReader, nameAndSigToken);
RuntimeTypeHandle targetTypeHandle = extRefs.GetRuntimeTypeHandleFromIndex(entryParser.GetUnsigned());
#if REFLECTION_EXECUTION_TRACE
ReflectionExecutionLogger.WriteLine(" Searching for GVM implementation on targe type = " + GetTypeNameDebug(targetTypeHandle));
#endif
uint numIfaceImpls = entryParser.GetUnsigned();
for (uint k = 0; k < numIfaceImpls; k++)
{
RuntimeTypeHandle implementingTypeHandle = extRefs.GetRuntimeTypeHandleFromIndex(entryParser.GetUnsigned());
uint numIfaceSigs = entryParser.GetUnsigned();
if (!openTargetTypeHandle.Equals(implementingTypeHandle))
{
// Skip over signatures data
for (uint l = 0; l < numIfaceSigs; l++)
entryParser.GetUnsigned();
continue;
}
for (uint l = 0; l < numIfaceSigs; l++)
{
RuntimeTypeHandle currentIfaceTypeHandle = default(RuntimeTypeHandle);
NativeParser ifaceSigParser = new NativeParser(nativeLayoutReader, extRefs.GetRvaFromIndex(entryParser.GetUnsigned()));
IntPtr currentIfaceSigPtr = ifaceSigParser.Reader.OffsetToAddress(ifaceSigParser.Offset);
if (TypeLoaderEnvironment.Instance.GetTypeFromSignatureAndContext(currentIfaceSigPtr, targetTypeInstantiation, null, out currentIfaceTypeHandle, out currentIfaceSigPtr))
{
Debug.Assert(!currentIfaceTypeHandle.IsNull());
if ((!variantDispatch && declaringType.Equals(currentIfaceTypeHandle)) ||
(variantDispatch && RuntimeAugments.IsAssignableFrom(declaringType, currentIfaceTypeHandle)))
{
#if REFLECTION_EXECUTION_TRACE
ReflectionExecutionLogger.WriteLine(" " + (declaringType.Equals(currentIfaceTypeHandle) ? "Exact" : "Variant-compatible") + " match found on this target type!");
#endif
// We found the GVM slot target for the input interface GVM call, so let's update the interface GVM slot and return success to the caller
declaringType = targetTypeHandle;
methodNameAndSignature = targetMethodNameAndSignature;
return true;
}
}
}
}
}
return false;
}
public MethodNameAndSignature GetMethodNameAndSignatureFromNativeReader(NativeReader nativeLayoutReader, uint nativeLayoutOffset)
{
NativeParser parser = new NativeParser(nativeLayoutReader, nativeLayoutOffset);
string methodName = parser.GetString();
// Signatures are indirected to through a relative offset so that we don't have to parse them
// when not comparing signatures (parsing them requires resolving types and is tremendously
// expensive).
NativeParser sigParser = parser.GetParserFromRelativeOffset();
IntPtr methodSigPtr = sigParser.Reader.OffsetToAddress(sigParser.Offset);
return new MethodNameAndSignature(methodName, methodSigPtr);
}
public bool TryGetAt(byte[] image, uint index, ref int pOffset)
{
if (index >= _nElements)
{
return(false);
}
uint offset = 0;
if (_entryIndexSize == 0)
{
int i = (int)(_baseOffset + (index / _blockSize));
offset = NativeReader.ReadByte(image, ref i);
}
else if (_entryIndexSize == 1)
{
int i = (int)(_baseOffset + 2 * (index / _blockSize));
offset = NativeReader.ReadUInt16(image, ref i);
}
else
{
int i = (int)(_baseOffset + 4 * (index / _blockSize));
offset = NativeReader.ReadUInt32(image, ref i);
}
offset += _baseOffset;
for (uint bit = _blockSize >> 1; bit > 0; bit >>= 1)
{
uint val = 0;
uint offset2 = NativeReader.DecodeUnsigned(image, offset, ref val);
if ((index & bit) != 0)
{
if ((val & 2) != 0)
{
offset = offset + (val >> 2);
continue;
}
}
else
{
if ((val & 1) != 0)
{
offset = offset2;
continue;
}
}
// Not found
if ((val & 3) == 0)
{
// Matching special leaf node?
if ((val >> 2) == (index & (_blockSize - 1)))
{
offset = offset2;
break;
}
}
return(false);
}
pOffset = (int)offset;
return(true);
}
private List <List <BaseGcSlot> > GetLiveSlotsAtSafepoints(byte[] image, ref int bitOffset)
{
// For each safe point, enumerates a list of GC slots that are alive at that point
var result = new List <List <BaseGcSlot> >();
uint numSlots = SlotTable.NumTracked;
if (numSlots == 0)
{
return(null);
}
uint numBitsPerOffset = 0;
// Duplicate the encoder's heuristic to determine if we have indirect live
// slot table (similar to the chunk pointers)
if (NativeReader.ReadBits(image, 1, ref bitOffset) != 0)
{
numBitsPerOffset = NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.POINTER_SIZE_ENCBASE, ref bitOffset) + 1;
Debug.Assert(numBitsPerOffset != 0);
}
uint offsetTablePos = (uint)bitOffset;
for (uint safePointIndex = 0; safePointIndex < NumSafePoints; safePointIndex++)
{
bitOffset = (int)offsetTablePos;
var liveSlots = new List <BaseGcSlot>();
if (numBitsPerOffset != 0)
{
bitOffset += (int)(numBitsPerOffset * safePointIndex);
uint liveStatesOffset = (uint)NativeReader.ReadBits(image, (int)numBitsPerOffset, ref bitOffset);
uint liveStatesStart = (uint)((offsetTablePos + NumSafePoints * numBitsPerOffset + 7) & (~7));
bitOffset = (int)(liveStatesStart + liveStatesOffset);
if (NativeReader.ReadBits(image, 1, ref bitOffset) != 0)
{
// RLE encoded
bool skip = NativeReader.ReadBits(image, 1, ref bitOffset) == 0;
bool report = true;
uint readSlots = NativeReader.DecodeVarLengthUnsigned(image,
skip ? _gcInfoTypes.LIVESTATE_RLE_SKIP_ENCBASE : _gcInfoTypes.LIVESTATE_RLE_RUN_ENCBASE, ref bitOffset);
skip = !skip;
while (readSlots < numSlots)
{
uint cnt = NativeReader.DecodeVarLengthUnsigned(image,
skip ? _gcInfoTypes.LIVESTATE_RLE_SKIP_ENCBASE : _gcInfoTypes.LIVESTATE_RLE_RUN_ENCBASE, ref bitOffset) + 1;
if (report)
{
for (uint slotIndex = readSlots; slotIndex < readSlots + cnt; slotIndex++)
{
int trackedSlotIndex = 0;
foreach (var slot in SlotTable.GcSlots)
{
if (slot.Flags != GcSlotFlags.GC_SLOT_UNTRACKED)
{
if (slotIndex == trackedSlotIndex)
{
liveSlots.Add(slot);
break;
}
trackedSlotIndex++;
}
}
}
}
readSlots += cnt;
skip = !skip;
report = !report;
}
Debug.Assert(readSlots == numSlots);
result.Add(liveSlots);
continue;
}
// Just a normal live state (1 bit per slot), so use the normal decoding loop
}
else
{
bitOffset += (int)(safePointIndex * numSlots);
}
for (uint slotIndex = 0; slotIndex < numSlots; slotIndex++)
{
bool isLive = NativeReader.ReadBits(image, 1, ref bitOffset) != 0;
if (isLive)
{
int trackedSlotIndex = 0;
foreach (var slot in SlotTable.GcSlots)
{
if (slot.Flags != GcSlotFlags.GC_SLOT_UNTRACKED)
{
if (slotIndex == trackedSlotIndex)
{
liveSlots.Add(slot);
break;
}
trackedSlotIndex++;
}
}
}
}
result.Add(liveSlots);
}
return(result);
}
/// <summary>
/// Initialize the GcInfo header
/// based on <a href="https://github.com/dotnet/runtime/blob/main/src/coreclr/inc/gcdecoder.cpp">src\inc\gcdecoder.cpp</a> DecodeHeader and <a href="https://github.com/dotnet/runtime/blob/main/src/coreclr/gcdump/i386/gcdumpx86.cpp">GCDump::DumpInfoHdr</a>
/// </summary>
public static InfoHdrSmall DecodeHeader(byte[] image, ref int offset, int codeLength)
{
byte nextByte = image[offset++];
byte encoding = (byte)(nextByte & 0x7f);
InfoHdrSmall header = GetInfoHdr(encoding);
while ((nextByte & (uint)InfoHdrAdjustConstants.MORE_BYTES_TO_FOLLOW) != 0)
{
nextByte = image[offset++];
encoding = (byte)(nextByte & (uint)InfoHdrAdjustConstants.ADJ_ENCODING_MAX);
if (encoding < (uint)InfoHdrAdjust.NEXT_FOUR_START)
{
if (encoding < (uint)InfoHdrAdjust.SET_ARGCOUNT)
{
header.FrameSize = (byte)(encoding - (uint)InfoHdrAdjust.SET_FRAMESIZE);
}
else if (encoding < (uint)InfoHdrAdjust.SET_PROLOGSIZE)
{
header.ArgCount = (byte)(encoding - (uint)InfoHdrAdjust.SET_ARGCOUNT);
}
else if (encoding < (uint)InfoHdrAdjust.SET_EPILOGSIZE)
{
header.PrologSize = (byte)(encoding - (uint)InfoHdrAdjust.SET_PROLOGSIZE);
}
else if (encoding < (uint)InfoHdrAdjust.SET_EPILOGCNT)
{
header.EpilogSize = (byte)(encoding - (uint)InfoHdrAdjust.SET_EPILOGSIZE);
}
else if (encoding < (uint)InfoHdrAdjust.SET_UNTRACKED)
{
header.EpilogCount = (byte)((encoding - (uint)InfoHdrAdjust.SET_EPILOGCNT) / 2);
header.EpilogAtEnd = ((encoding - (uint)InfoHdrAdjust.SET_EPILOGCNT) & 1) == 1 ? true : false;
}
else if (encoding < (uint)InfoHdrAdjust.FIRST_FLIP)
{
header.UntrackedCnt = (byte)(encoding - (uint)InfoHdrAdjust.SET_UNTRACKED);
}
else
{
switch (encoding)
{
case (byte)InfoHdrAdjust.FLIP_EDI_SAVED:
header.EdiSaved = !header.EdiSaved;
break;
case (byte)InfoHdrAdjust.FLIP_ESI_SAVED:
header.EsiSaved = !header.EsiSaved;
break;
case (byte)InfoHdrAdjust.FLIP_EBX_SAVED:
header.EbxSaved = !header.EbxSaved;
break;
case (byte)InfoHdrAdjust.FLIP_EBP_SAVED:
header.EbpSaved = !header.EbpSaved;
break;
case (byte)InfoHdrAdjust.FLIP_EBP_FRAME:
header.EbpFrame = !header.EbpFrame;
break;
case (byte)InfoHdrAdjust.FLIP_INTERRUPTIBLE:
header.Interruptible = !header.Interruptible;
break;
case (byte)InfoHdrAdjust.FLIP_DOUBLE_ALIGN:
header.DoubleAlign = !header.DoubleAlign;
break;
case (byte)InfoHdrAdjust.FLIP_SECURITY:
header.Security = !header.Security;
break;
case (byte)InfoHdrAdjust.FLIP_HANDLERS:
header.Handlers = !header.Handlers;
break;
case (byte)InfoHdrAdjust.FLIP_LOCALLOC:
header.Localloc = !header.Localloc;
break;
case (byte)InfoHdrAdjust.FLIP_EDITnCONTINUE:
header.EditNcontinue = !header.EditNcontinue;
break;
case (byte)InfoHdrAdjust.FLIP_VAR_PTR_TABLE_SZ:
header.VarPtrTableSize ^= HAS_VARPTR;
break;
case (byte)InfoHdrAdjust.FFFF_UNTRACKED_CNT:
header.UntrackedCnt = HAS_UNTRACKED;
break;
case (byte)InfoHdrAdjust.FLIP_VARARGS:
header.Varargs = !header.Varargs;
break;
case (byte)InfoHdrAdjust.FLIP_PROF_CALLBACKS:
header.ProfCallbacks = !header.ProfCallbacks;
break;
case (byte)InfoHdrAdjust.FLIP_HAS_GENERICS_CONTEXT:
header.GenericsContext ^= 1;
break;
case (byte)InfoHdrAdjust.FLIP_GENERICS_CONTEXT_IS_METHODDESC:
header.GenericsContextIsMethodDesc ^= 1;
break;
case (byte)InfoHdrAdjust.FLIP_HAS_GS_COOKIE:
header.GsCookieOffset ^= HAS_GS_COOKIE_OFFSET;
break;
case (byte)InfoHdrAdjust.FLIP_SYNC:
header.SyncStartOffset ^= HAS_SYNC_OFFSET;
break;
case (byte)InfoHdrAdjust.FLIP_REV_PINVOKE_FRAME:
header.RevPInvokeOffset ^= HAS_REV_PINVOKE_FRAME_OFFSET;
break;
case (byte)InfoHdrAdjust.NEXT_OPCODE:
nextByte = image[offset++];
encoding = (byte)(nextByte & (int)InfoHdrAdjustConstants.ADJ_ENCODING_MAX);
// encoding here always corresponds to codes in InfoHdrAdjust2 set
if (encoding < (int)InfoHdrAdjustConstants.SET_RET_KIND_MAX)
{
header.ReturnKind = (ReturnKinds)encoding;
}
else
{
throw new BadImageFormatException("Unexpected gcinfo header encoding");
}
break;
default:
throw new BadImageFormatException("Unexpected gcinfo header encoding");
}
}
}
else
{
byte lowBits;
switch (encoding >> 4)
{
case 5:
lowBits = (byte)(encoding & 0xf);
header.FrameSize <<= 4;
header.FrameSize += lowBits;
break;
case 6:
lowBits = (byte)(encoding & 0xf);
header.ArgCount <<= 4;
header.ArgCount += lowBits;
break;
case 7:
if ((encoding & 0x8) == 0)
{
lowBits = (byte)(encoding & 0x7);
header.PrologSize <<= 3;
header.PrologSize += lowBits;
}
else
{
lowBits = (byte)(encoding & 0x7);
header.EpilogSize <<= 3;
header.EpilogSize += lowBits;
}
break;
default:
throw new BadImageFormatException("Unexpected gcinfo header encoding");
}
}
}
if (header.UntrackedCnt == HAS_UNTRACKED)
{
header.HasArgTabOffset = true;
header.UntrackedCnt = NativeReader.DecodeUnsignedGc(image, ref offset);
}
if (header.VarPtrTableSize == HAS_VARPTR)
{
header.HasArgTabOffset = true;
header.VarPtrTableSize = NativeReader.DecodeUnsignedGc(image, ref offset);
}
if (header.GsCookieOffset == HAS_GS_COOKIE_OFFSET)
{
header.GsCookieOffset = NativeReader.DecodeUnsignedGc(image, ref offset);
}
if (header.SyncStartOffset == HAS_SYNC_OFFSET)
{
header.SyncStartOffset = NativeReader.DecodeUnsignedGc(image, ref offset);
header.SyncEndOffset = NativeReader.DecodeUnsignedGc(image, ref offset);
}
if (header.RevPInvokeOffset == HAS_REV_PINVOKE_FRAME_OFFSET)
{
header.RevPInvokeOffset = NativeReader.DecodeUnsignedGc(image, ref offset);
}
header.Epilogs = new List <int>();
if (header.EpilogCount > 1 || (header.EpilogCount != 0 && !header.EpilogAtEnd))
{
uint offs = 0;
for (int i = 0; i < header.EpilogCount; i++)
{
offs = NativeReader.DecodeUDelta(image, ref offset, offs);
header.Epilogs.Add((int)offs);
}
}
else
{
if (header.EpilogCount != 0)
{
header.Epilogs.Add(codeLength - (int)header.EpilogSize);
}
}
if (header.HasArgTabOffset)
{
header.ArgTabOffset = NativeReader.DecodeUnsignedGc(image, ref offset);
}
return(header);
}
private void GetTransitionsNoEbp(byte[] image, ref int offset)
{
uint curOffs = 0;
uint lastSkip = 0;
uint imask = 0;
for (; ;)
{
uint val = image[offset++];
if ((val & 0x80) == 0)
{
if ((val & 0x40) == 0)
{
if ((val & 0x20) == 0)
{
// push 000DDDDD push one item, 5-bit delta
curOffs += val & 0x1F;
AddNewTransition(new GcTransitionRegister((int)curOffs, Registers.ESP, Action.PUSH));
}
else
{
// push 00100000 [pushCount] ESP push multiple items
uint pushCount = NativeReader.DecodeUnsignedGc(image, ref offset);
AddNewTransition(new GcTransitionRegister((int)curOffs, Registers.ESP, Action.PUSH, false, false, (int)pushCount));
}
}
else
{
uint popSize;
uint skip;
if ((val & 0x3f) == 0)
{
//
// skip 01000000 [Delta] Skip arbitrary sized delta
//
skip = NativeReader.DecodeUnsignedGc(image, ref offset);
curOffs += skip;
lastSkip = skip;
}
else
{
// pop 01CCDDDD pop CC items, 4-bit delta
popSize = (val & 0x30) >> 4;
skip = val & 0x0f;
curOffs += skip;
if (popSize > 0)
{
AddNewTransition(new GcTransitionRegister((int)curOffs, Registers.ESP, Action.POP, false, false, (int)popSize));
}
else
{
lastSkip = skip;
}
}
}
}
else
{
uint callArgCnt;
uint callRegMask;
bool callPndTab = false;
uint callPndMask = 0;
uint callPndTabCnt = 0, callPndTabSize = 0;
switch ((val & 0x70) >> 4)
{
default:
//
// call 1PPPPPPP Call Pattern, P=[0..79]
//
CallPattern.DecodeCallPattern((val & 0x7f), out callArgCnt, out callRegMask, out callPndMask, out lastSkip);
curOffs += lastSkip;
SaveCallTransition(image, ref offset, val, curOffs, callRegMask, callPndTab, callPndTabCnt, callPndMask, lastSkip, ref imask);
break;
case 5:
//
// call 1101RRRR DDCCCMMM Call RegMask=RRRR,ArgCnt=CCC,
// ArgMask=MMM Delta=commonDelta[DD]
//
callRegMask = val & 0xf; // EBP,EBX,ESI,EDI
val = image[offset++];
callPndMask = (val & 0x7);
callArgCnt = (val >> 3) & 0x7;
lastSkip = CallPattern.callCommonDelta[val >> 6];
curOffs += lastSkip;
SaveCallTransition(image, ref offset, val, curOffs, callRegMask, callPndTab, callPndTabCnt, callPndMask, lastSkip, ref imask);
break;
case 6:
//
// call 1110RRRR [ArgCnt] [ArgMask]
// Call ArgCnt,RegMask=RRR,ArgMask
//
callRegMask = val & 0xf; // EBP,EBX,ESI,EDI
callArgCnt = NativeReader.DecodeUnsignedGc(image, ref offset);
callPndMask = NativeReader.DecodeUnsignedGc(image, ref offset);
SaveCallTransition(image, ref offset, val, curOffs, callRegMask, callPndTab, callPndTabCnt, callPndMask, lastSkip, ref imask);
break;
case 7:
switch (val & 0x0C)
{
case 0x00:
// iptr 11110000 [IPtrMask] Arbitrary Interior Pointer Mask
imask = NativeReader.DecodeUnsignedGc(image, ref offset);
AddNewTransition(new IPtrMask((int)curOffs, imask));
break;
case 0x04:
AddNewTransition(new CalleeSavedRegister((int)curOffs, (CalleeSavedRegisters)(val & 0x3)));
break;
case 0x08:
val = image[offset++];
callRegMask = val & 0xF;
imask = val >> 4;
lastSkip = NativeReader.ReadUInt32(image, ref offset);
curOffs += lastSkip;
callArgCnt = NativeReader.ReadUInt32(image, ref offset);
callPndTabCnt = NativeReader.ReadUInt32(image, ref offset);
callPndTabSize = NativeReader.ReadUInt32(image, ref offset);
callPndTab = true;
SaveCallTransition(image, ref offset, val, curOffs, callRegMask, callPndTab, callPndTabCnt, callPndMask, lastSkip, ref imask);
break;
case 0x0C:
return;
default:
throw new BadImageFormatException("Invalid GC encoding");
}
break;
}
}
}
}
/// <summary>
/// based on <a href="https://github.com/dotnet/coreclr/blob/master/src/gcdump/i386/gcdumpx86.cpp">GCDump::DumpGCTable</a>
/// </summary>
private void GetTransitionsFullyInterruptible(byte[] image, ref int offset)
{
uint argCnt = 0;
bool isThis = false;
bool iptr = false;
uint curOffs = 0;
while (true)
{
uint isPop;
uint argOffs;
uint val = image[offset++];
if ((val & 0x80) == 0)
{
/* A small 'regPtr' encoding */
curOffs += val & 0x7;
Action isLive = Action.LIVE;
if ((val & 0x40) == 0)
{
isLive = Action.DEAD;
}
AddNewTransition(new GcTransitionRegister((int)curOffs, (Registers)((val >> 3) & 7), isLive, isThis, iptr));
isThis = false;
iptr = false;
continue;
}
/* This is probably an argument push/pop */
argOffs = (val & 0x38) >> 3;
/* 6 [110] and 7 [111] are reserved for other encodings */
if (argOffs < 6)
{
/* A small argument encoding */
curOffs += (val & 0x07);
isPop = (val & 0x40);
ArgEncoding(image, ref isPop, ref argOffs, ref argCnt, ref curOffs, ref isThis, ref iptr);
continue;
}
else if (argOffs == 6)
{
if ((val & 0x40) != 0)
{
curOffs += (((val & 0x07) + 1) << 3);
}
else
{
// non-ptr arg push
curOffs += (val & 0x07);
argCnt++;
AddNewTransition(new GcTransitionPointer((int)curOffs, argOffs, argCnt, Action.PUSH, Header.EbpFrame, false, false, false));
}
continue;
}
// argOffs was 7 [111] which is reserved for the larger encodings
switch (val)
{
case 0xFF:
return;
case 0xBC:
isThis = true;
break;
case 0xBF:
iptr = true;
break;
case 0xB8:
val = NativeReader.DecodeUnsignedGc(image, ref offset);
curOffs += val;
break;
case 0xF8:
case 0xFC:
isPop = val & 0x04;
argOffs = NativeReader.DecodeUnsignedGc(image, ref offset);
ArgEncoding(image, ref isPop, ref argOffs, ref argCnt, ref curOffs, ref isThis, ref iptr);
break;
case 0xFD:
argOffs = NativeReader.DecodeUnsignedGc(image, ref offset);
AddNewTransition(new GcTransitionPointer((int)curOffs, argOffs, argCnt, Action.KILL, Header.EbpFrame));
break;
case 0xF9:
argOffs = NativeReader.DecodeUnsignedGc(image, ref offset);
argCnt += argOffs;
break;
default:
throw new BadImageFormatException($"Unexpected special code {val}");
}
}
}
private unsafe int PatchStatics(TileMatrix matrix, string dataPath, string indexPath, string lookupPath)
{
using var staticsDataStream = new FileStream(dataPath, FileMode.Open, FileAccess.Read, FileShare.Read);
using var staticsIndexStream = new FileStream(indexPath, FileMode.Open, FileAccess.Read, FileShare.Read);
using var staticsLookupStream = new FileStream(lookupPath, FileMode.Open, FileAccess.Read, FileShare.Read);
var staticsIndexReader = new BinaryReader(staticsIndexStream);
var staticsLookupReader = new BinaryReader(staticsLookupStream);
var count = (int)(staticsIndexReader.BaseStream.Length / 4);
var lists = new TileList[8][];
for (var x = 0; x < 8; ++x)
{
lists[x] = new TileList[8];
for (var y = 0; y < 8; ++y)
{
lists[x][y] = new TileList();
}
}
for (var i = 0; i < count; ++i)
{
var blockID = staticsIndexReader.ReadInt32();
var blockX = blockID / matrix.BlockHeight;
var blockY = blockID % matrix.BlockHeight;
var offset = staticsLookupReader.ReadInt32();
var length = staticsLookupReader.ReadInt32();
staticsLookupReader.ReadInt32(); // Extra
if (offset < 0 || length <= 0)
{
matrix.SetStaticBlock(blockX, blockY, matrix.EmptyStaticBlock);
continue;
}
staticsDataStream.Seek(offset, SeekOrigin.Begin);
var tileCount = length / 7;
if (_tileBuffer.Length < tileCount)
{
_tileBuffer = new StaticTile[tileCount];
}
var staTiles = _tileBuffer;
fixed(StaticTile *pTiles = staTiles)
{
NativeReader.Read(staticsDataStream.SafeFileHandle.DangerousGetHandle(), pTiles, length);
StaticTile *pCur = pTiles, pEnd = pTiles + tileCount;
while (pCur < pEnd)
{
lists[pCur->X & 0x7][pCur->Y & 0x7].Add(pCur->Id, (sbyte)pCur->Z);
pCur += 1;
}
var tiles = new StaticTile[8][][];
for (var x = 0; x < 8; ++x)
{
tiles[x] = new StaticTile[8][];
for (var y = 0; y < 8; ++y)
{
tiles[x][y] = lists[x][y].ToArray();
}
}
matrix.SetStaticBlock(blockX, blockY, tiles);
}
}
staticsIndexReader.Close();
staticsLookupReader.Close();
return(count);
}
public static uint Read(this NativeReader reader, uint offset, out long value)
{
return(reader.DecodeSignedLong(offset, out value));
}
private static void HighLevelDebugFuncEvalHelper()
{
uint parameterBufferSize = RuntimeAugments.RhpGetFuncEvalParameterBufferSize();
IntPtr writeParameterCommandPointer;
IntPtr debuggerBufferPointer;
unsafe
{
byte *debuggerBufferRawPointer = stackalloc byte[(int)parameterBufferSize];
debuggerBufferPointer = new IntPtr(debuggerBufferRawPointer);
WriteParameterCommand writeParameterCommand = new WriteParameterCommand
{
commandCode = 1,
bufferAddress = debuggerBufferPointer.ToInt64()
};
writeParameterCommandPointer = new IntPtr(&writeParameterCommand);
RuntimeAugments.RhpSendCustomEventToDebugger(writeParameterCommandPointer, Unsafe.SizeOf <WriteParameterCommand>());
// .. debugger magic ... the debuggerBuffer will be filled with parameter data
TypesAndValues typesAndValues = new TypesAndValues();
uint trash;
uint parameterCount;
uint parameterValue;
uint eeTypeCount;
ulong eeType;
uint offset = 0;
NativeReader reader = new NativeReader(debuggerBufferRawPointer, parameterBufferSize);
offset = reader.DecodeUnsigned(offset, out trash); // The VertexSequence always generate a length, I don't really need it.
offset = reader.DecodeUnsigned(offset, out parameterCount);
typesAndValues.parameterValues = new int[parameterCount];
for (int i = 0; i < parameterCount; i++)
{
offset = reader.DecodeUnsigned(offset, out parameterValue);
typesAndValues.parameterValues[i] = (int)parameterValue;
}
offset = reader.DecodeUnsigned(offset, out eeTypeCount);
for (int i = 0; i < eeTypeCount; i++)
{
// TODO: Stuff these eeType values into the external reference table
offset = reader.DecodeUnsignedLong(offset, out eeType);
}
TypeSystemContext typeSystemContext = TypeSystemContextFactory.Create();
bool hasThis;
TypeDesc[] parameters;
bool[] parametersWithGenericDependentLayout;
bool result = TypeLoaderEnvironment.Instance.GetCallingConverterDataFromMethodSignature_NativeLayout_Debugger(typeSystemContext, RuntimeSignature.CreateFromNativeLayoutSignatureForDebugger(offset), Instantiation.Empty, Instantiation.Empty, out hasThis, out parameters, out parametersWithGenericDependentLayout, reader);
typesAndValues.types = new RuntimeTypeHandle[parameters.Length];
bool needToDynamicallyLoadTypes = false;
for (int i = 0; i < typesAndValues.types.Length; i++)
{
if (!parameters[i].RetrieveRuntimeTypeHandleIfPossible())
{
needToDynamicallyLoadTypes = true;
break;
}
typesAndValues.types[i] = parameters[i].GetRuntimeTypeHandle();
}
if (needToDynamicallyLoadTypes)
{
TypeLoaderEnvironment.Instance.RunUnderTypeLoaderLock(() =>
{
typeSystemContext.FlushTypeBuilderStates();
GenericDictionaryCell[] cells = new GenericDictionaryCell[parameters.Length];
for (int i = 0; i < cells.Length; i++)
{
cells[i] = GenericDictionaryCell.CreateTypeHandleCell(parameters[i]);
}
IntPtr[] eetypePointers;
TypeBuilder.ResolveMultipleCells(cells, out eetypePointers);
for (int i = 0; i < parameters.Length; i++)
{
typesAndValues.types[i] = ((EEType *)eetypePointers[i])->ToRuntimeTypeHandle();
}
});
}
TypeSystemContextFactory.Recycle(typeSystemContext);
LocalVariableType[] argumentTypes = new LocalVariableType[parameters.Length];
for (int i = 0; i < parameters.Length; i++)
{
// TODO: What these false really means? Need to make sure our format contains those information
argumentTypes[i] = new LocalVariableType(typesAndValues.types[i], false, false);
}
LocalVariableSet.SetupArbitraryLocalVariableSet <TypesAndValues>(HighLevelDebugFuncEvalHelperWithVariables, ref typesAndValues, argumentTypes);
}
}
public unsafe LowLevelNativeFormatReader(byte *buffer, uint bufferSize)
{
_nativeReader = new NativeReader(buffer, bufferSize);
_offset = 0;
}
private static MethodNameAndSignature GetMethodNameAndSignatureFromNativeReader(NativeReader nativeLayoutReader, TypeManagerHandle moduleHandle, uint nativeLayoutOffset)
{
NativeParser parser = new NativeParser(nativeLayoutReader, nativeLayoutOffset);
string methodName = parser.GetString();
// Signatures are indirected to through a relative offset so that we don't have to parse them
// when not comparing signatures (parsing them requires resolving types and is tremendously
// expensive).
NativeParser sigParser = parser.GetParserFromRelativeOffset();
RuntimeSignature methodSig = RuntimeSignature.CreateFromNativeLayoutSignature(moduleHandle, sigParser.Offset);
return(new MethodNameAndSignature(methodName, methodSig));
}
private unsafe static bool TryGetNativeReaderForBlob(IntPtr module, ReflectionMapBlob blob, out NativeReader reader)
{
byte *pBlob;
uint cbBlob;
if (RuntimeAugments.FindBlob(module, (int)blob, (IntPtr)(&pBlob), (IntPtr)(&cbBlob)))
{
reader = new NativeReader(pBlob, cbBlob);
return(true);
}
reader = default(NativeReader);
return(false);
}
private static async void OnImportSoundCommand(bool forceMono)
{
var asset = _currentEditor.Asset;
var soundWave = (SoundWaveAsset)asset.RootObject;
byte chunkIndex = 0;
if (soundWave.Localization != null && soundWave.Localization.Count > 0)
{
var english = soundWave.Localization[0];
chunkIndex = soundWave.RuntimeVariations[english.FirstVariationIndex].ChunkIndex;
}
var chunk = soundWave.Chunks[chunkIndex];
var chunkEntry = App.AssetManager.GetChunkEntry(chunk.ChunkId);
var ofd = new OpenFileDialog();
ofd.Filter = "All Media Files|*.wav;*.mp3";
ofd.Title = "Open Audio";
ofd.Multiselect = true;
if (ofd.ShowDialog(_mainWindow) != true)
{
return;
}
FrostyTask2.Begin("Importing Chunk", "");
await Task.Run(() =>
{
var imports = new List <SoundImport>();
var totalChunkSize = 0u;
foreach (var fileName in ofd.FileNames)
{
var tempFile = Path.GetTempFileName();
#if DEBUG
var tempFile2 = Path.GetTempFileName();
var decoder = new CSCore.Ffmpeg.FfmpegDecoder(fileName);
var source = decoder.ChangeSampleRate(48000);
if (forceMono)
{
decoder.ToMono();
}
using (var encoder = MediaFoundationEncoder.CreateMP3Encoder(source.WaveFormat,
tempFile2))
{
var buffer = new byte[source.WaveFormat.BytesPerSecond];
int read;
while ((read = source.Read(buffer, 0, buffer.Length)) > 0)
{
encoder.Write(buffer, 0, read);
}
}
#else
var tempFile2 = fileName;
#endif
try
{
var fileNameEncoded = EncodeParameterArgument(tempFile2);
App.Logger.Log($"- \"{fileNameEncoded}\"");
var result = Primrose.Utility.ExternalTool.Run(@"dandev-el3.exe", $"{fileNameEncoded} -o {tempFile}",
out var stdout, out var stderr);
if (!string.IsNullOrEmpty(stderr))
{
App.Logger.LogError(stderr);
}
if (result == 0)
{
using (var nativeReader =
new NativeReader(
new FileStream(tempFile, FileMode.Open, FileAccess.Read)))
{
var end = nativeReader.ReadToEnd();
if (end.Length > 0 && end[0] == 0x48)
{
var lines = stdout.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var line in lines)
{
App.Logger.Log("> " + line);
}
var chunkSize =
uint.Parse(lines.First(l => l.StartsWith("ChunkSize:")).Substring(10));
var segmentLength =
float.Parse(lines.First(l => l.StartsWith("SegmentLength:")).Substring(15));
imports.Add(new SoundImport
{
SourceFile = fileName,
Chunk = end,
ChunkOffset = totalChunkSize,
ChunkSize = chunkSize,
SegmentLength = segmentLength
});
totalChunkSize += chunkSize;
}
}
}
}
catch (Exception e)
{
App.Logger.LogError(e.Message);
App.Logger.LogError(e.StackTrace);
}
finally
{
try { File.Delete(tempFile); } catch (Exception) { /* ignored */ }
try { File.Delete(tempFile2); } catch (Exception) { /* ignored */ }
}
}
if (soundWave.Localization.Count > 0)
{
var english = soundWave.Localization[0];
if (soundWave.Localization.Count > 1)
{
soundWave.Localization.RemoveRange(1, soundWave.Localization.Count - 1);
}
english.FirstVariationIndex = 0;
english.VariationCount = (ushort)imports.Count;
}
soundWave.Segments.Clear();
soundWave.RuntimeVariations.Clear();
var combinedChunk = new byte[totalChunkSize];
for (var i = 0; i < imports.Count; i++)
{
var import = imports[i];
App.Logger.Log($"Import[{i}] - SampleOffset: {import.ChunkOffset} - SegmentLength: {import.SegmentLength} - SourceFile: {import.SourceFile}");
soundWave.Segments.Add(new SoundWaveVariationSegment
{
SamplesOffset = import.ChunkOffset,
SeekTableOffset = uint.MaxValue,
SegmentLength = import.SegmentLength,
});
soundWave.RuntimeVariations.Add(new SoundWaveRuntimeVariation
{
ChunkIndex = chunkIndex,
FirstLoopSegmentIndex = 0,
FirstSegmentIndex = (ushort)i,
LastLoopSegmentIndex = 0,
PersistentDataSize = 0,
SegmentCount = 1,
Weight = 100,
});
Debug.Assert(import.ChunkSize == import.Chunk.Length);
Array.Copy(import.Chunk, 0, combinedChunk, (int)import.ChunkOffset, import.ChunkSize);
}
App.AssetManager.ModifyChunk(chunkEntry.Id, combinedChunk);
chunk.ChunkSize = totalChunkSize;
asset.Update();
_app.Dispatcher.InvokeAsync(() =>
{
App.AssetManager.ModifyEbx(_currentEditor.AssetEntry.Name, asset);
});
});
FrostyTask2.End();
}
private static unsafe bool TryGetNativeReaderForBlob(TypeManagerHandle module, ReflectionMapBlob blob, out NativeReader reader)
{
byte *pBlob;
uint cbBlob;
if (RuntimeImports.RhFindBlob(module, (uint)blob, &pBlob, &cbBlob))
{
reader = new NativeReader(pBlob, cbBlob);
return(true);
}
reader = default(NativeReader);
return(false);
}
internal bool GetCallingConverterDataFromMethodSignature_NativeLayout_Common(TypeSystemContext context, RuntimeSignature methodSig, Instantiation typeInstantiation, Instantiation methodInstantiation, out bool hasThis, out TypeDesc[] parameters, out bool[] parametersWithGenericDependentLayout, NativeReader nativeReader, ulong[] debuggerPreparedExternalReferences)
{
bool isNotDebuggerCall = nativeReader == null;
hasThis = false;
parameters = null;
NativeLayoutInfoLoadContext nativeLayoutContext = new NativeLayoutInfoLoadContext();
nativeLayoutContext._module = isNotDebuggerCall ? (NativeFormatModuleInfo)methodSig.GetModuleInfo() : null;
nativeLayoutContext._typeSystemContext = context;
nativeLayoutContext._typeArgumentHandles = typeInstantiation;
nativeLayoutContext._methodArgumentHandles = methodInstantiation;
nativeLayoutContext._debuggerPreparedExternalReferences = debuggerPreparedExternalReferences;
NativeReader reader = isNotDebuggerCall ? GetNativeLayoutInfoReader(methodSig) : nativeReader;
NativeFormatModuleInfo module = isNotDebuggerCall ? ModuleList.Instance.GetModuleInfoByHandle(new TypeManagerHandle(methodSig.ModuleHandle)) : null;
NativeParser parser = new NativeParser(reader, methodSig.NativeLayoutOffset);
MethodCallingConvention callingConvention = (MethodCallingConvention)parser.GetUnsigned();
hasThis = !callingConvention.HasFlag(MethodCallingConvention.Static);
uint numGenArgs = callingConvention.HasFlag(MethodCallingConvention.Generic) ? parser.GetUnsigned() : 0;
uint parameterCount = parser.GetUnsigned();
parameters = new TypeDesc[parameterCount + 1];
parametersWithGenericDependentLayout = new bool[parameterCount + 1];
// One extra parameter to account for the return type
for (uint i = 0; i <= parameterCount; i++)
{
// NativeParser is a struct, so it can be copied.
NativeParser parserCopy = parser;
// Parse the signature twice. The first time to find out the exact type of the signature
// The second time to identify if the parameter loaded via the signature should be forced to be
// passed byref as part of the universal generic calling convention.
parameters[i] = GetConstructedTypeFromParserAndNativeLayoutContext(ref parser, nativeLayoutContext);
parametersWithGenericDependentLayout[i] = TypeSignatureHasVarsNeedingCallingConventionConverter(ref parserCopy, module, context, HasVarsInvestigationLevel.Parameter);
if (parameters[i] == null)
{
return(false);
}
}
return(true);
}
public static uint Read(this NativeReader reader, uint offset, out byte value)
{
value = reader.ReadUInt8(offset);
return(offset + 1);
}
static public uint Read(this NativeReader reader, uint offset, out string value)
{
return(reader.DecodeString(offset, out value));
}
public static uint Read(this NativeReader reader, uint offset, out float value)
{
value = reader.ReadFloat(offset);
return(offset + 4);
}
public UnwindInfo(byte[] image, int offset)
{
FunctionLength = NativeReader.DecodeUnsignedGc(image, ref offset);
Size = sizeof(int);
}
private static unsafe bool TryGetNativeReaderForBlob(NativeFormatModuleInfo module, ReflectionMapBlob blob, out NativeReader reader)
{
byte *pBlob;
uint cbBlob;
if (module.TryFindBlob((int)blob, out pBlob, out cbBlob))
{
reader = new NativeReader(pBlob, cbBlob);
return(true);
}
reader = default(NativeReader);
return(false);
}
private bool FindMatchingInterfaceSlot(NativeFormatModuleInfo module, NativeReader nativeLayoutReader, ref NativeParser entryParser, ref ExternalReferencesTable extRefs, ref RuntimeTypeHandle declaringType, ref MethodNameAndSignature methodNameAndSignature, RuntimeTypeHandle instanceTypeHandle, RuntimeTypeHandle openTargetTypeHandle, RuntimeTypeHandle[] targetTypeInstantiation, bool variantDispatch, bool defaultMethods)
{
uint numTargetImplementations = entryParser.GetUnsigned();
#if GVM_RESOLUTION_TRACE
Debug.WriteLine(" :: Declaring type = " + GetTypeNameDebug(declaringType));
Debug.WriteLine(" :: Target type = " + GetTypeNameDebug(openTargetTypeHandle));
#endif
for (uint j = 0; j < numTargetImplementations; j++)
{
uint nameAndSigToken = entryParser.GetUnsigned();
MethodNameAndSignature targetMethodNameAndSignature = null;
RuntimeTypeHandle targetTypeHandle = default;
bool isDefaultInterfaceMethodImplementation;
if (nameAndSigToken != SpecialGVMInterfaceEntry.Diamond && nameAndSigToken != SpecialGVMInterfaceEntry.Reabstraction)
{
targetMethodNameAndSignature = GetMethodNameAndSignatureFromNativeReader(nativeLayoutReader, module.Handle, nameAndSigToken);
targetTypeHandle = extRefs.GetRuntimeTypeHandleFromIndex(entryParser.GetUnsigned());
isDefaultInterfaceMethodImplementation = RuntimeAugments.IsInterface(targetTypeHandle);
#if GVM_RESOLUTION_TRACE
Debug.WriteLine(" Searching for GVM implementation on targe type = " + GetTypeNameDebug(targetTypeHandle));
#endif
}
else
{
isDefaultInterfaceMethodImplementation = true;
}
uint numIfaceImpls = entryParser.GetUnsigned();
for (uint k = 0; k < numIfaceImpls; k++)
{
RuntimeTypeHandle implementingTypeHandle = extRefs.GetRuntimeTypeHandleFromIndex(entryParser.GetUnsigned());
#if GVM_RESOLUTION_TRACE
Debug.WriteLine(" -> Current implementing type = " + GetTypeNameDebug(implementingTypeHandle));
#endif
uint numIfaceSigs = entryParser.GetUnsigned();
if (!openTargetTypeHandle.Equals(implementingTypeHandle) ||
defaultMethods != isDefaultInterfaceMethodImplementation)
{
// Skip over signatures data
for (uint l = 0; l < numIfaceSigs; l++)
{
entryParser.GetUnsigned();
}
continue;
}
for (uint l = 0; l < numIfaceSigs; l++)
{
RuntimeTypeHandle currentIfaceTypeHandle = default(RuntimeTypeHandle);
NativeParser ifaceSigParser = new NativeParser(nativeLayoutReader, entryParser.GetUnsigned());
if (TypeLoaderEnvironment.Instance.GetTypeFromSignatureAndContext(ref ifaceSigParser, module.Handle, targetTypeInstantiation, null, out currentIfaceTypeHandle))
{
#if GVM_RESOLUTION_TRACE
Debug.WriteLine(" -> Current interface on type = " + GetTypeNameDebug(currentIfaceTypeHandle));
#endif
Debug.Assert(!currentIfaceTypeHandle.IsNull());
if ((!variantDispatch && declaringType.Equals(currentIfaceTypeHandle)) ||
(variantDispatch && RuntimeAugments.IsAssignableFrom(declaringType, currentIfaceTypeHandle)))
{
#if GVM_RESOLUTION_TRACE
Debug.WriteLine(" " + (declaringType.Equals(currentIfaceTypeHandle) ? "Exact" : "Variant-compatible") + " match found on this target type!");
#endif
if (targetMethodNameAndSignature == null)
{
if (nameAndSigToken == SpecialGVMInterfaceEntry.Diamond)
{
throw new AmbiguousImplementationException();
}
else
{
Debug.Assert(nameAndSigToken == SpecialGVMInterfaceEntry.Reabstraction);
throw new EntryPointNotFoundException();
}
}
// We found the GVM slot target for the input interface GVM call, so let's update the interface GVM slot and return success to the caller
if (!RuntimeAugments.IsInterface(targetTypeHandle) || !RuntimeAugments.IsGenericTypeDefinition(targetTypeHandle))
{
// Not a default interface method or default interface method on a non-generic type.
// We have a usable type handle.
declaringType = targetTypeHandle;
}
else if (RuntimeAugments.IsGenericType(currentIfaceTypeHandle) && RuntimeAugments.GetGenericDefinition(currentIfaceTypeHandle).Equals(targetTypeHandle))
{
// Default interface method implemented on the same type that declared the slot.
// Use the instantiation as-is from what we found.
declaringType = currentIfaceTypeHandle;
}
else
{
declaringType = default;
// Default interface method implemented on a different generic interface.
// We need to find a usable instantiation. There should be only one match because we
// would be dealing with a diamond otherwise.
int numInstanceInterfaces = RuntimeAugments.GetInterfaceCount(instanceTypeHandle);
for (int instIntfIndex = 0; instIntfIndex < numInstanceInterfaces; instIntfIndex++)
{
RuntimeTypeHandle instIntf = RuntimeAugments.GetInterface(instanceTypeHandle, instIntfIndex);
if (RuntimeAugments.IsGenericType(instIntf) &&
RuntimeAugments.GetGenericDefinition(instIntf).Equals(targetTypeHandle))
{
// Got a potential interface. Check if the implementing interface is in the interface
// list. We don't want IsAssignableFrom because we need an exact match.
int numIntInterfaces = RuntimeAugments.GetInterfaceCount(instIntf);
for (int intIntfIndex = 0; intIntfIndex < numIntInterfaces; intIntfIndex++)
{
if (RuntimeAugments.GetInterface(instIntf, intIntfIndex).Equals(currentIfaceTypeHandle))
{
Debug.Assert(declaringType.IsNull());
declaringType = instIntf;
#if !DEBUG
break;
#endif
}
}
#if !DEBUG
if (!declaringType.IsNull())
{
break;
}
#endif
}
}
Debug.Assert(!declaringType.IsNull());
}
methodNameAndSignature = targetMethodNameAndSignature;
return(true);
}
}
}
}
}
return(false);
}
/// <summary>
/// based on <a href="https://github.com/dotnet/coreclr/blob/master/src/gcdump/i386/gcdumpx86.cpp">GCDump::DumpGCTable</a>
/// </summary>
private void GetTransitionsEbpFrame(byte[] image, ref int offset)
{
while (true)
{
uint argMask = 0, byrefArgMask = 0;
uint regMask, byrefRegMask = 0;
uint argCnt = 0;
int argOffset = offset;
uint argTabSize;
uint val, nxt;
uint curOffs = 0;
// Get the next byte and check for a 'special' entry
uint encType = image[offset++];
GcTransitionCall transition = null;
switch (encType)
{
default:
// A tiny or small call entry
val = encType;
if ((val & 0x80) == 0x00)
{
if ((val & 0x0F) != 0)
{
// A tiny call entry
curOffs += (val & 0x0F);
regMask = (val & 0x70) >> 4;
argMask = 0;
}
else
{
Registers reg;
if ((val & 0x10) != 0)
{
reg = Registers.EDI;
}
else if ((val & 0x20) != 0)
{
reg = Registers.ESI;
}
else if ((val & 0x40) != 0)
{
reg = Registers.EBX;
}
else
{
throw new BadImageFormatException("Invalid register");
}
transition = new GcTransitionCall((int)curOffs);
transition.CallRegisters.Add(new GcTransitionCall.CallRegister(reg, false));
AddNewTransition(transition);
continue;
}
}
else
{
// A small call entry
curOffs += (val & 0x7F);
val = image[offset++];
regMask = val >> 5;
argMask = val & 0x1F;
}
break;
case 0xFD: // medium encoding
argMask = image[offset++];
val = image[offset++];
argMask |= (val & 0xF0) << 4;
nxt = image[offset++];
curOffs += (val & 0x0F) + ((nxt & 0x1F) << 4);
regMask = nxt >> 5; // EBX,ESI,EDI
break;
case 0xF9: // medium encoding with byrefs
curOffs += image[offset++];
val = image[offset++];
argMask = val & 0x1F;
regMask = val >> 5;
val = image[offset++];
byrefArgMask = val & 0x1F;
byrefRegMask = val >> 5;
break;
case 0xFE: // large encoding
case 0xFA: // large encoding with byrefs
val = image[offset++];
regMask = val & 0x7;
byrefRegMask = val >> 4;
curOffs += NativeReader.ReadUInt32(image, ref offset);
argMask = NativeReader.ReadUInt32(image, ref offset);
if (encType == 0xFA) // read byrefArgMask
{
byrefArgMask = NativeReader.ReadUInt32(image, ref offset);
}
break;
case 0xFB: // huge encoding
val = image[offset++];
regMask = val & 0x7;
byrefRegMask = val >> 4;
curOffs = NativeReader.ReadUInt32(image, ref offset);
argCnt = NativeReader.ReadUInt32(image, ref offset);
argTabSize = NativeReader.ReadUInt32(image, ref offset);
argOffset = offset;
offset += (int)argTabSize;
break;
case 0xFF:
return;
}
/*
* Here we have the following values:
*
* curOffs ... the code offset of the call
* regMask ... mask of live pointer register variables
* argMask ... bitmask of pushed pointer arguments
* byrefRegMask ... byref qualifier for regMask
* byrefArgMask ... byrer qualifier for argMask
*/
transition = new GcTransitionCall((int)curOffs, Header.EbpFrame, regMask, byrefRegMask);
AddNewTransition(transition);
if (argCnt != 0)
{
do
{
val = NativeReader.DecodeUnsignedGc(image, ref argOffset);
uint stkOffs = val & ~byref_OFFSET_FLAG;
uint lowBit = val & byref_OFFSET_FLAG;
transition.PtrArgs.Add(new GcTransitionCall.PtrArg(stkOffs, lowBit));
}while (--argCnt > 0);
}
else
{
transition.ArgMask = argMask;
if (byrefArgMask != 0)
{
transition.IArgs = byrefArgMask;
}
}
}
}
private InstantiatedMethod TryGetGenericMethodTemplate_Internal(InstantiatedMethod concreteMethod, CanonicalFormKind kind, out NativeFormatModuleInfo nativeLayoutInfoModule, out uint nativeLayoutInfoToken)
{
nativeLayoutInfoModule = null;
nativeLayoutInfoToken = 0;
var canonForm = concreteMethod.GetCanonMethodTarget(kind);
var hashCode = canonForm.GetHashCode();
foreach (NativeFormatModuleInfo moduleInfo in ModuleList.EnumerateModules())
{
NativeReader nativeLayoutReader = TypeLoaderEnvironment.Instance.GetNativeLayoutInfoReader(moduleInfo.Handle);
if (nativeLayoutReader == null)
{
continue;
}
NativeHashtable genericMethodTemplatesHashtable = LoadHashtable(moduleInfo, ReflectionMapBlob.GenericMethodsTemplateMap, out _);
if (genericMethodTemplatesHashtable.IsNull)
{
continue;
}
var context = new NativeLayoutInfoLoadContext
{
_typeSystemContext = concreteMethod.Context,
_typeArgumentHandles = concreteMethod.OwningType.Instantiation,
_methodArgumentHandles = concreteMethod.Instantiation,
_module = moduleInfo
};
var enumerator = genericMethodTemplatesHashtable.Lookup(hashCode);
NativeParser entryParser;
while (!(entryParser = enumerator.GetNext()).IsNull)
{
var methodSignatureParser = new NativeParser(nativeLayoutReader, entryParser.GetUnsigned());
// Get the unified generic method holder and convert it to its canonical form
var candidateTemplate = (InstantiatedMethod)context.GetMethod(ref methodSignatureParser);
Debug.Assert(candidateTemplate.Instantiation.Length > 0);
if (canonForm == candidateTemplate.GetCanonMethodTarget(kind))
{
TypeLoaderLogger.WriteLine("Found template for generic method " + concreteMethod.ToString() + ": " + candidateTemplate.ToString());
nativeLayoutInfoModule = moduleInfo;
nativeLayoutInfoToken = entryParser.GetUnsigned();
if (nativeLayoutInfoToken == BadTokenFixupValue)
{
// TODO: once multifile gets fixed up, make this throw a BadImageFormatException
TypeLoaderLogger.WriteLine("ERROR: template not fixed up, skipping");
continue;
}
Debug.Assert(
(kind != CanonicalFormKind.Universal) ||
(kind == CanonicalFormKind.Universal && candidateTemplate == candidateTemplate.GetCanonMethodTarget(kind)));
return(candidateTemplate);
}
}
}
TypeLoaderLogger.WriteLine("ERROR: Cannot find a suitable template for generic method " + concreteMethod.ToString());
return(null);
}
private bool FindMatchingInterfaceSlot(NativeFormatModuleInfo module, NativeReader nativeLayoutReader, ref NativeParser entryParser, ref ExternalReferencesTable extRefs, ref RuntimeTypeHandle declaringType, ref MethodNameAndSignature methodNameAndSignature, RuntimeTypeHandle openTargetTypeHandle, RuntimeTypeHandle[] targetTypeInstantiation, bool variantDispatch)
{
uint numTargetImplementations = entryParser.GetUnsigned();
for (uint j = 0; j < numTargetImplementations; j++)
{
uint nameAndSigToken = extRefs.GetExternalNativeLayoutOffset(entryParser.GetUnsigned());
MethodNameAndSignature targetMethodNameAndSignature = GetMethodNameAndSignatureFromNativeReader(nativeLayoutReader, module.Handle, nameAndSigToken);
RuntimeTypeHandle targetTypeHandle = extRefs.GetRuntimeTypeHandleFromIndex(entryParser.GetUnsigned());
#if REFLECTION_EXECUTION_TRACE
ReflectionExecutionLogger.WriteLine(" Searching for GVM implementation on targe type = " + GetTypeNameDebug(targetTypeHandle));
#endif
uint numIfaceImpls = entryParser.GetUnsigned();
for (uint k = 0; k < numIfaceImpls; k++)
{
RuntimeTypeHandle implementingTypeHandle = extRefs.GetRuntimeTypeHandleFromIndex(entryParser.GetUnsigned());
uint numIfaceSigs = entryParser.GetUnsigned();
if (!openTargetTypeHandle.Equals(implementingTypeHandle))
{
// Skip over signatures data
for (uint l = 0; l < numIfaceSigs; l++)
{
entryParser.GetUnsigned();
}
continue;
}
for (uint l = 0; l < numIfaceSigs; l++)
{
RuntimeTypeHandle currentIfaceTypeHandle = default(RuntimeTypeHandle);
NativeParser ifaceSigParser = new NativeParser(nativeLayoutReader, extRefs.GetExternalNativeLayoutOffset(entryParser.GetUnsigned()));
if (TypeLoaderEnvironment.Instance.GetTypeFromSignatureAndContext(ref ifaceSigParser, module.Handle, targetTypeInstantiation, null, out currentIfaceTypeHandle))
{
Debug.Assert(!currentIfaceTypeHandle.IsNull());
if ((!variantDispatch && declaringType.Equals(currentIfaceTypeHandle)) ||
(variantDispatch && RuntimeAugments.IsAssignableFrom(declaringType, currentIfaceTypeHandle)))
{
#if REFLECTION_EXECUTION_TRACE
ReflectionExecutionLogger.WriteLine(" " + (declaringType.Equals(currentIfaceTypeHandle) ? "Exact" : "Variant-compatible") + " match found on this target type!");
#endif
// We found the GVM slot target for the input interface GVM call, so let's update the interface GVM slot and return success to the caller
declaringType = targetTypeHandle;
methodNameAndSignature = targetMethodNameAndSignature;
return(true);
}
}
}
}
}
return(false);
}
private unsafe static void NewParameterizedArray(byte *parameterBuffer, uint parameterBufferSize)
{
uint offset = 0;
NativeReader reader = new NativeReader(parameterBuffer, parameterBufferSize);
ulong[] debuggerPreparedExternalReferences;
offset = BuildDebuggerPreparedExternalReferences(reader, offset, out debuggerPreparedExternalReferences);
NativeLayoutInfoLoadContext nativeLayoutContext = new NativeLayoutInfoLoadContext();
TypeSystemContext typeSystemContext = TypeSystemContextFactory.Create();
nativeLayoutContext._module = null;
nativeLayoutContext._typeSystemContext = typeSystemContext;
nativeLayoutContext._typeArgumentHandles = Instantiation.Empty;
nativeLayoutContext._methodArgumentHandles = Instantiation.Empty;
nativeLayoutContext._debuggerPreparedExternalReferences = debuggerPreparedExternalReferences;
NativeParser parser = new NativeParser(reader, offset);
TypeDesc arrElementType = TypeLoaderEnvironment.Instance.GetConstructedTypeFromParserAndNativeLayoutContext(ref parser, nativeLayoutContext);
TypeSystemContextFactory.Recycle(typeSystemContext);
uint rank = parser.GetUnsigned();
int[] dims = new int[rank];
int[] lowerBounds = new int[rank];
for (uint i = 0; i < rank; ++i)
{
dims[i] = (int)parser.GetUnsigned();
}
for (uint i = 0; i < rank; ++i)
{
lowerBounds[i] = (int)parser.GetUnsigned();
}
RuntimeTypeHandle typeHandle = arrElementType.GetRuntimeTypeHandle();
RuntimeTypeHandle arrayTypeHandle = default(RuntimeTypeHandle);
Array returnValue;
// Get an array RuntimeTypeHandle given an element's RuntimeTypeHandle and rank.
// Pass false for isMdArray, and rank == -1 for SzArrays
bool succeed = false;
if (rank == 1 && lowerBounds[0] == 0)
{
succeed = TypeLoaderEnvironment.Instance.TryGetArrayTypeForElementType(
typeHandle,
false,
-1,
out arrayTypeHandle);
Debug.Assert(succeed);
returnValue = Internal.Runtime.Augments.RuntimeAugments.NewArray(
arrayTypeHandle,
dims[0]);
}
else
{
succeed = TypeLoaderEnvironment.Instance.TryGetArrayTypeForElementType(
typeHandle,
true,
(int)rank,
out arrayTypeHandle
);
Debug.Assert(succeed);
returnValue = Internal.Runtime.Augments.RuntimeAugments.NewMultiDimArray(
arrayTypeHandle,
dims,
lowerBounds
);
}
GCHandle returnValueHandle = GCHandle.Alloc(returnValue);
IntPtr returnValueHandlePointer = GCHandle.ToIntPtr(returnValueHandle);
uint returnHandleIdentifier = RuntimeAugments.RhpRecordDebuggeeInitiatedHandle(returnValueHandlePointer);
ReturnToDebuggerWithReturn(returnHandleIdentifier, returnValueHandlePointer, false);
}
/// <summary>
/// based on <a href="https://github.com/dotnet/coreclr/blob/master/src/vm/gcinfodecoder.cpp">GcInfoDecoder::GcInfoDecoder</a>
/// </summary>
public GcInfo(byte[] image, int offset, Machine machine, ushort majorVersion)
{
Offset = offset;
_gcInfoTypes = new GcInfoTypes(machine);
_machine = machine;
SecurityObjectStackSlot = -1;
GSCookieStackSlot = -1;
PSPSymStackSlot = -1;
SecurityObjectStackSlot = -1;
GenericsInstContextStackSlot = -1;
StackBaseRegister = 0xffffffff;
SizeOfEditAndContinuePreservedArea = 0xffffffff;
ReversePInvokeFrameStackSlot = -1;
Version = ReadyToRunVersionToGcInfoVersion(majorVersion);
int bitOffset = offset * 8;
int startBitOffset = bitOffset;
ParseHeaderFlags(image, ref bitOffset);
if (Version >= MIN_GCINFO_VERSION_WITH_RETURN_KIND) // IsReturnKindAvailable
{
int returnKindBits = (_slimHeader) ? _gcInfoTypes.SIZE_OF_RETURN_KIND_SLIM : _gcInfoTypes.SIZE_OF_RETURN_KIND_FAT;
ReturnKind = (ReturnKinds)NativeReader.ReadBits(image, returnKindBits, ref bitOffset);
}
CodeLength = _gcInfoTypes.DenormalizeCodeLength((int)NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.CODE_LENGTH_ENCBASE, ref bitOffset));
if (_hasGSCookie)
{
uint normPrologSize = NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.NORM_PROLOG_SIZE_ENCBASE, ref bitOffset) + 1;
uint normEpilogSize = NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.NORM_EPILOG_SIZE_ENCBASE, ref bitOffset);
ValidRangeStart = normPrologSize;
ValidRangeEnd = (uint)CodeLength - normEpilogSize;
}
else if (_hasSecurityObject || _hasGenericsInstContext)
{
ValidRangeStart = NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.NORM_PROLOG_SIZE_ENCBASE, ref bitOffset) + 1;
ValidRangeEnd = ValidRangeStart + 1;
}
if (_hasSecurityObject)
{
SecurityObjectStackSlot = _gcInfoTypes.DenormalizeStackSlot(NativeReader.DecodeVarLengthSigned(image, _gcInfoTypes.SECURITY_OBJECT_STACK_SLOT_ENCBASE, ref bitOffset));
}
if (_hasGSCookie)
{
GSCookieStackSlot = _gcInfoTypes.DenormalizeStackSlot(NativeReader.DecodeVarLengthSigned(image, _gcInfoTypes.GS_COOKIE_STACK_SLOT_ENCBASE, ref bitOffset));
}
if (_hasPSPSym)
{
PSPSymStackSlot = _gcInfoTypes.DenormalizeStackSlot(NativeReader.DecodeVarLengthSigned(image, _gcInfoTypes.PSP_SYM_STACK_SLOT_ENCBASE, ref bitOffset));
}
if (_hasGenericsInstContext)
{
GenericsInstContextStackSlot = _gcInfoTypes.DenormalizeStackSlot(NativeReader.DecodeVarLengthSigned(image, _gcInfoTypes.GENERICS_INST_CONTEXT_STACK_SLOT_ENCBASE, ref bitOffset));
}
if (_hasStackBaseRegister && !_slimHeader)
{
StackBaseRegister = _gcInfoTypes.DenormalizeStackBaseRegister(NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.STACK_BASE_REGISTER_ENCBASE, ref bitOffset));
}
if (_hasSizeOfEditAndContinuePreservedArea)
{
SizeOfEditAndContinuePreservedArea = NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.SIZE_OF_EDIT_AND_CONTINUE_PRESERVED_AREA_ENCBASE, ref bitOffset);
}
if (_hasReversePInvokeFrame)
{
ReversePInvokeFrameStackSlot = NativeReader.DecodeVarLengthSigned(image, _gcInfoTypes.REVERSE_PINVOKE_FRAME_ENCBASE, ref bitOffset);
}
// FIXED_STACK_PARAMETER_SCRATCH_AREA (this macro is always defined in _gcInfoTypes.h)
if (!_slimHeader)
{
SizeOfStackOutgoingAndScratchArea = _gcInfoTypes.DenormalizeSizeOfStackArea(NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.SIZE_OF_STACK_AREA_ENCBASE, ref bitOffset));
}
// PARTIALLY_INTERRUPTIBLE_GC_SUPPORTED (this macro is always defined in _gcInfoTypes.h)
NumSafePoints = NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.NUM_SAFE_POINTS_ENCBASE, ref bitOffset);
if (!_slimHeader)
{
NumInterruptibleRanges = NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.NUM_INTERRUPTIBLE_RANGES_ENCBASE, ref bitOffset);
}
// PARTIALLY_INTERRUPTIBLE_GC_SUPPORTED (this macro is always defined in _gcInfoTypes.h)
SafePointOffsets = EnumerateSafePoints(image, ref bitOffset);
InterruptibleRanges = EnumerateInterruptibleRanges(image, _gcInfoTypes.INTERRUPTIBLE_RANGE_DELTA1_ENCBASE, _gcInfoTypes.INTERRUPTIBLE_RANGE_DELTA2_ENCBASE, ref bitOffset);
SlotTable = new GcSlotTable(image, machine, _gcInfoTypes, ref bitOffset);
// Try partially interruptible first
if (NumSafePoints > 0)
{
LiveSlotsAtSafepoints = GetLiveSlotsAtSafepoints(image, ref bitOffset);
}
else
{
Transitions = GetTransitions(image, ref bitOffset);
}
Size = bitOffset - startBitOffset;
}
public static uint Read(this NativeReader reader, uint offset, out double value)
{
value = reader.ReadDouble(offset);
return(offset + 8);
}
/// <summary>
/// based on end of <a href="https://github.com/dotnet/coreclr/blob/master/src/vm/gcinfodecoder.cpp">GcInfoDecoder::EnumerateLiveSlots and GcInfoEncoder::Build</a>
/// </summary>
public Dictionary <int, List <BaseGcTransition> > GetTransitions(byte[] image, ref int bitOffset)
{
int totalInterruptibleLength = 0;
if (NumInterruptibleRanges == 0)
{
totalInterruptibleLength = CodeLength;
}
else
{
foreach (InterruptibleRange range in InterruptibleRanges)
{
totalInterruptibleLength += (int)(range.StopOffset - range.StartOffset);
}
}
int numChunks = (totalInterruptibleLength + _gcInfoTypes.NUM_NORM_CODE_OFFSETS_PER_CHUNK - 1) / _gcInfoTypes.NUM_NORM_CODE_OFFSETS_PER_CHUNK;
int numBitsPerPointer = (int)NativeReader.DecodeVarLengthUnsigned(image, _gcInfoTypes.POINTER_SIZE_ENCBASE, ref bitOffset);
if (numBitsPerPointer == 0)
{
return(new Dictionary <int, List <BaseGcTransition> >());
}
// get offsets of each chunk
int[] chunkPointers = new int[numChunks];
for (int i = 0; i < numChunks; i++)
{
chunkPointers[i] = NativeReader.ReadBits(image, numBitsPerPointer, ref bitOffset);
}
// Offset to m_Info2 containing all the info on register liveness
int info2Offset = (int)Math.Ceiling(bitOffset / 8.0) * 8;
List <GcTransition> transitions = new List <GcTransition>();
bool[] liveAtEnd = new bool[SlotTable.NumTracked]; // true if slot is live at the end of the chunk
for (int currentChunk = 0; currentChunk < numChunks; currentChunk++)
{
if (chunkPointers[currentChunk] == 0)
{
continue;
}
else
{
bitOffset = info2Offset + chunkPointers[currentChunk] - 1;
}
int couldBeLiveOffset = bitOffset; // points to the couldBeLive bit array (array of bits indicating the slot changed state in the chunk)
int slotId = 0;
bool fSimple = (NativeReader.ReadBits(image, 1, ref couldBeLiveOffset) == 0);
bool fSkipFirst = false;
int couldBeLiveCnt = 0;
if (!fSimple)
{
fSkipFirst = (NativeReader.ReadBits(image, 1, ref couldBeLiveOffset) == 0);
slotId = -1;
}
uint numCouldBeLiveSlots = GetNumCouldBeLiveSlots(image, ref bitOffset); // count the number of set bits in the couldBeLive array
int finalStateOffset = bitOffset; // points to the finalState bit array (array of bits indicating if the slot is live at the end of the chunk)
bitOffset += (int)numCouldBeLiveSlots; // points to the array of code offsets
int normChunkBaseCodeOffset = currentChunk * _gcInfoTypes.NUM_NORM_CODE_OFFSETS_PER_CHUNK; // the sum of the sizes of all preceeding chunks
for (int i = 0; i < numCouldBeLiveSlots; i++)
{
// get the index of the next couldBeLive slot
slotId = GetNextSlotId(image, fSimple, fSkipFirst, slotId, ref couldBeLiveCnt, ref couldBeLiveOffset);
// set the liveAtEnd for the slot at slotId
bool isLive = !liveAtEnd[slotId];
liveAtEnd[slotId] = (NativeReader.ReadBits(image, 1, ref finalStateOffset) != 0);
// Read all the code offsets where the slot at slotId changed state
while (NativeReader.ReadBits(image, 1, ref bitOffset) != 0)
{
int transitionOffset = NativeReader.ReadBits(image, _gcInfoTypes.NUM_NORM_CODE_OFFSETS_PER_CHUNK_LOG2, ref bitOffset) + normChunkBaseCodeOffset;
transitions.Add(new GcTransition(transitionOffset, slotId, isLive, currentChunk, SlotTable, _machine));
isLive = !isLive;
}
slotId++;
}
}
// convert normCodeOffsetDelta to the actual CodeOffset
transitions.Sort((s1, s2) => s1.CodeOffset.CompareTo(s2.CodeOffset));
return(UpdateTransitionCodeOffset(transitions));
}
public static uint Read(this NativeReader reader, uint offset, out bool value)
{
value = (reader.ReadUInt8(offset) != 0) ? true : false;
return(offset + 1);
}
/// <summary>
/// Unwinde code parsing is based on <a href="https://github.com/dotnet/coreclr/blob/master/src/jit/unwindamd64.cpp">src\jit\unwindamd64.cpp</a> DumpUnwindInfo
/// </summary>
public UnwindCode(byte[] image, ref int frameOffset, ref int offset)
{
CodeOffset = NativeReader.ReadByte(image, ref offset);
byte op = NativeReader.ReadByte(image, ref offset);
UnwindOp = (UnwindOpCodes)(op & 15);
OpInfo = (byte)(op >> 4);
OffsetLow = CodeOffset;
OffsetHigh = OpInfo;
FrameOffset = frameOffset;
switch (UnwindOp)
{
case UnwindOpCodes.UWOP_PUSH_NONVOL:
OpInfoStr = $"{(Registers)OpInfo}({OpInfo})";
break;
case UnwindOpCodes.UWOP_ALLOC_LARGE:
OpInfoStr = $"{OpInfo} - ";
if (OpInfo == 0)
{
OpInfoStr += "Scaled small";
NextFrameOffset = 8 * NativeReader.ReadUInt16(image, ref offset);
}
else if (OpInfo == 1)
{
OpInfoStr += "Unscaled large";
uint nextOffset = NativeReader.ReadUInt16(image, ref offset);
NextFrameOffset = (int)((uint)(NativeReader.ReadUInt16(image, ref offset) << 16) | nextOffset);
}
else
{
throw new BadImageFormatException();
}
break;
case UnwindOpCodes.UWOP_ALLOC_SMALL:
int opInfo = OpInfo * 8 + 8;
OpInfoStr = $"{opInfo}";
break;
case UnwindOpCodes.UWOP_SET_FPREG:
OpInfoStr = $"Unused({OpInfo})";
break;
case UnwindOpCodes.UWOP_SET_FPREG_LARGE:
{
OpInfoStr = $"Unused({OpInfo})";
uint nextOffset = NativeReader.ReadUInt16(image, ref offset);
nextOffset = ((uint)(NativeReader.ReadUInt16(image, ref offset) << 16) | nextOffset);
NextFrameOffset = (int)nextOffset * 16;
if ((NextFrameOffset & 0xF0000000) != 0)
{
throw new BadImageFormatException("Warning: Illegal unwindInfo unscaled offset: too large");
}
}
break;
case UnwindOpCodes.UWOP_SAVE_NONVOL:
{
OpInfoStr = $"{(Registers)OpInfo}({OpInfo})";
NextFrameOffset = NativeReader.ReadUInt16(image, ref offset) * 8;
}
break;
case UnwindOpCodes.UWOP_SAVE_NONVOL_FAR:
{
OpInfoStr = $"{(Registers)OpInfo}({OpInfo})";
uint nextOffset = NativeReader.ReadUInt16(image, ref offset);
NextFrameOffset = (int)((uint)(NativeReader.ReadUInt16(image, ref offset) << 16) | nextOffset);
}
break;
case UnwindOpCodes.UWOP_SAVE_XMM128:
{
OpInfoStr = $"XMM{OpInfo}({OpInfo})";
NextFrameOffset = (int)NativeReader.ReadUInt16(image, ref offset) * 16;
}
break;
case UnwindOpCodes.UWOP_SAVE_XMM128_FAR:
{
OpInfoStr = $"XMM{OpInfo}({OpInfo})";
uint nextOffset = NativeReader.ReadUInt16(image, ref offset);
NextFrameOffset = (int)((uint)(NativeReader.ReadUInt16(image, ref offset) << 16) | nextOffset);
}
break;
default:
throw new NotImplementedException(UnwindOp.ToString());
}
NextFrameOffset = frameOffset;
}
public static uint Read(this NativeReader reader, uint offset, out uint value)
{
return(reader.DecodeUnsigned(offset, out value));
}