private void EnsureInitialized()
{
if (_gcInfo == null)
{
ParseRuntimeFunctions(true);
if (GcInfoRva != 0)
{
int gcInfoOffset = _readyToRunReader.CompositeReader.GetOffset(GcInfoRva);
if (_readyToRunReader.Machine == Machine.I386)
{
_gcInfo = new x86.GcInfo(_readyToRunReader.Image, gcInfoOffset, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion);
}
else
{
// Arm and Arm64 use the same GcInfo format as Amd64
_gcInfo = new Amd64.GcInfo(_readyToRunReader.Image, gcInfoOffset, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion);
}
}
}
if (_pgoInfo == null)
{
_pgoInfo = _readyToRunReader.GetPgoInfoByKey(PgoInfoKey.FromReadyToRunMethod(this));
if (_pgoInfo == null)
{
_pgoInfo = PgoInfo.EmptySingleton;
}
}
}
private void EnsureInitialized()
{
if (_gcInfo == null && GetGcInfo != null)
{
_gcInfo = GetGcInfo();
}
}
private void EnsureInitialized()
{
if (_gcInfo == null && GcInfoRva != 0)
{
int gcInfoOffset = _readyToRunReader.CompositeReader.GetOffset(GcInfoRva);
if (_readyToRunReader.Machine == Machine.I386)
{
_gcInfo = new x86.GcInfo(_readyToRunReader.Image, gcInfoOffset, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion);
}
else
{
// Arm and Arm64 use the same GcInfo format as Amd64
_gcInfo = new Amd64.GcInfo(_readyToRunReader.Image, gcInfoOffset, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion);
}
}
}
public RuntimeFunction(
int id,
int startRva,
int endRva,
int unwindRva,
int codeOffset,
R2RMethod method,
BaseUnwindInfo unwindInfo,
BaseGcInfo gcInfo,
EHInfo ehInfo,
DebugInfo debugInfo)
{
Id = id;
StartAddress = startRva;
UnwindRVA = unwindRva;
Method = method;
UnwindInfo = unwindInfo;
DebugInfo = debugInfo;
if (endRva != -1)
{
Size = endRva - startRva;
}
else if (unwindInfo is x86.UnwindInfo)
{
Size = (int)((x86.UnwindInfo)unwindInfo).FunctionLength;
}
else if (unwindInfo is Arm.UnwindInfo)
{
Size = (int)((Arm.UnwindInfo)unwindInfo).FunctionLength;
}
else if (unwindInfo is Arm64.UnwindInfo)
{
Size = (int)((Arm64.UnwindInfo)unwindInfo).FunctionLength;
}
else if (gcInfo != null)
{
Size = gcInfo.CodeLength;
}
else
{
Size = -1;
}
CodeOffset = codeOffset;
method.GcInfo = gcInfo;
EHInfo = ehInfo;
}
public RuntimeFunction(
ReadyToRunReader readyToRunReader,
int id,
int startRva,
int endRva,
int unwindRva,
int codeOffset,
ReadyToRunMethod method,
BaseUnwindInfo unwindInfo,
BaseGcInfo gcInfo)
{
_readyToRunReader = readyToRunReader;
Id = id;
StartAddress = startRva;
UnwindRVA = unwindRva;
Method = method;
UnwindInfo = unwindInfo;
if (endRva != -1)
{
Size = endRva - startRva;
}
else if (unwindInfo is x86.UnwindInfo)
{
Size = (int)((x86.UnwindInfo)unwindInfo).FunctionLength;
}
else if (unwindInfo is Arm.UnwindInfo)
{
Size = (int)((Arm.UnwindInfo)unwindInfo).FunctionLength;
}
else if (unwindInfo is Arm64.UnwindInfo)
{
Size = (int)((Arm64.UnwindInfo)unwindInfo).FunctionLength;
}
else if (gcInfo != null)
{
Size = gcInfo.CodeLength;
}
else
{
Size = -1;
}
CodeOffset = codeOffset;
method.GcInfo = gcInfo;
}
/// <summary>
/// Get the RVAs of the runtime functions for each method
/// based on <a href="https://github.com/dotnet/coreclr/blob/master/src/zap/zapcode.cpp">ZapUnwindInfo::Save</a>
/// </summary>
private void ParseRuntimeFunctions(bool[] isEntryPoint, int runtimeFunctionOffset, int runtimeFunctionSize)
{
int curOffset = 0;
foreach (R2RMethod method in R2RMethods)
{
int runtimeFunctionId = method.EntryPointRuntimeFunctionId;
if (runtimeFunctionId == -1)
{
continue;
}
curOffset = runtimeFunctionOffset + runtimeFunctionId * runtimeFunctionSize;
BaseGcInfo gcInfo = null;
int codeOffset = 0;
do
{
int startRva = NativeReader.ReadInt32(Image, ref curOffset);
int endRva = -1;
if (Machine == Machine.Amd64)
{
endRva = NativeReader.ReadInt32(Image, ref curOffset);
}
int unwindRva = NativeReader.ReadInt32(Image, ref curOffset);
int unwindOffset = GetOffset(unwindRva);
BaseUnwindInfo unwindInfo = null;
if (Machine == Machine.Amd64)
{
unwindInfo = new Amd64.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new Amd64.GcInfo(Image, unwindOffset + unwindInfo.Size, Machine, R2RHeader.MajorVersion);
}
}
else if (Machine == Machine.I386)
{
unwindInfo = new x86.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new x86.GcInfo(Image, unwindOffset, Machine, R2RHeader.MajorVersion);
}
}
else if (Machine == Machine.ArmThumb2)
{
unwindInfo = new Arm.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new Amd64.GcInfo(Image, unwindOffset + unwindInfo.Size, Machine, R2RHeader.MajorVersion); // Arm and Arm64 use the same GcInfo format as x64
}
}
else if (Machine == Machine.Arm64)
{
unwindInfo = new Arm64.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new Amd64.GcInfo(Image, unwindOffset + unwindInfo.Size, Machine, R2RHeader.MajorVersion);
}
}
EHInfo ehInfo = null;
EHInfoLocation ehInfoLocation;
if (EHLookupTable != null && EHLookupTable.RuntimeFunctionToEHInfoMap.TryGetValue(startRva, out ehInfoLocation))
{
ehInfo = new EHInfo(this, ehInfoLocation.EHInfoRVA, startRva, GetOffset(ehInfoLocation.EHInfoRVA), ehInfoLocation.ClauseCount);
}
DebugInfo debugInfo;
_runtimeFunctionToDebugInfo.TryGetValue(runtimeFunctionId, out debugInfo);
RuntimeFunction rtf = new RuntimeFunction(
runtimeFunctionId,
startRva,
endRva,
unwindRva,
codeOffset,
method,
unwindInfo,
gcInfo,
ehInfo,
debugInfo);
method.RuntimeFunctions.Add(rtf);
runtimeFunctionId++;
codeOffset += rtf.Size;
}while (runtimeFunctionId < isEntryPoint.Length && !isEntryPoint[runtimeFunctionId]);
}
}
private void ParseRuntimeFunctionsForMethod(bool[] isEntryPoint, int curOffset, ReadyToRunMethod method, int runtimeFunctionId)
{
BaseGcInfo gcInfo = null;
int codeOffset = 0;
do
{
int startRva = NativeReader.ReadInt32(Image, ref curOffset);
int endRva = -1;
if (Machine == Machine.Amd64)
{
endRva = NativeReader.ReadInt32(Image, ref curOffset);
}
int unwindRva = NativeReader.ReadInt32(Image, ref curOffset);
int unwindOffset = GetOffset(unwindRva);
BaseUnwindInfo unwindInfo = null;
if (Machine == Machine.Amd64)
{
unwindInfo = new Amd64.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new Amd64.GcInfo(Image, unwindOffset + unwindInfo.Size, Machine, ReadyToRunHeader.MajorVersion);
}
}
else if (Machine == Machine.I386)
{
unwindInfo = new x86.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new x86.GcInfo(Image, unwindOffset, Machine, ReadyToRunHeader.MajorVersion);
}
}
else if (Machine == Machine.ArmThumb2)
{
unwindInfo = new Arm.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new Amd64.GcInfo(Image, unwindOffset + unwindInfo.Size, Machine, ReadyToRunHeader.MajorVersion); // Arm and Arm64 use the same GcInfo format as x64
}
}
else if (Machine == Machine.Arm64)
{
unwindInfo = new Arm64.UnwindInfo(Image, unwindOffset);
if (isEntryPoint[runtimeFunctionId])
{
gcInfo = new Amd64.GcInfo(Image, unwindOffset + unwindInfo.Size, Machine, ReadyToRunHeader.MajorVersion);
}
}
RuntimeFunction rtf = new RuntimeFunction(
this,
runtimeFunctionId,
startRva,
endRva,
unwindRva,
codeOffset,
method,
unwindInfo,
gcInfo);
method.RuntimeFunctions.Add(rtf);
runtimeFunctionId++;
codeOffset += rtf.Size;
}while (runtimeFunctionId < isEntryPoint.Length && !isEntryPoint[runtimeFunctionId]);
}
/// <summary>
/// Get the RVAs of the runtime functions for each method
/// based on <a href="https://github.com/dotnet/coreclr/blob/master/src/zap/zapcode.cpp">ZapUnwindInfo::Save</a>
/// </summary>
private void ParseRuntimeFunctions()
{
int runtimeFunctionId = EntryPointRuntimeFunctionId;
int runtimeFunctionSize = _readyToRunReader.CalculateRuntimeFunctionSize();
int runtimeFunctionOffset = _readyToRunReader.CompositeReader.GetOffset(_readyToRunReader.ReadyToRunHeader.Sections[ReadyToRunSectionType.RuntimeFunctions].RelativeVirtualAddress);
int curOffset = runtimeFunctionOffset + runtimeFunctionId * runtimeFunctionSize;
BaseGcInfo gcInfo = null;
int codeOffset = 0;
for (int i = 0; i < RuntimeFunctionCount; i++)
{
int startRva = NativeReader.ReadInt32(_readyToRunReader.Image, ref curOffset);
int endRva = -1;
if (_readyToRunReader.Machine == Machine.Amd64)
{
endRva = NativeReader.ReadInt32(_readyToRunReader.Image, ref curOffset);
}
int unwindRva = NativeReader.ReadInt32(_readyToRunReader.Image, ref curOffset);
int unwindOffset = _readyToRunReader.CompositeReader.GetOffset(unwindRva);
BaseUnwindInfo unwindInfo = null;
if (_readyToRunReader.Machine == Machine.Amd64)
{
unwindInfo = new Amd64.UnwindInfo(_readyToRunReader.Image, unwindOffset);
if (i == 0)
{
gcInfo = new Amd64.GcInfo(_readyToRunReader.Image, unwindOffset + unwindInfo.Size, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion);
}
}
else if (_readyToRunReader.Machine == Machine.I386)
{
unwindInfo = new x86.UnwindInfo(_readyToRunReader.Image, unwindOffset);
if (i == 0)
{
gcInfo = new x86.GcInfo(_readyToRunReader.Image, unwindOffset, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion);
}
}
else if (_readyToRunReader.Machine == Machine.ArmThumb2)
{
unwindInfo = new Arm.UnwindInfo(_readyToRunReader.Image, unwindOffset);
if (i == 0)
{
gcInfo = new Amd64.GcInfo(_readyToRunReader.Image, unwindOffset + unwindInfo.Size, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion); // Arm and Arm64 use the same GcInfo format as x64
}
}
else if (_readyToRunReader.Machine == Machine.Arm64)
{
unwindInfo = new Arm64.UnwindInfo(_readyToRunReader.Image, unwindOffset);
if (i == 0)
{
gcInfo = new Amd64.GcInfo(_readyToRunReader.Image, unwindOffset + unwindInfo.Size, _readyToRunReader.Machine, _readyToRunReader.ReadyToRunHeader.MajorVersion);
}
}
RuntimeFunction rtf = new RuntimeFunction(
_readyToRunReader,
runtimeFunctionId,
startRva,
endRva,
unwindRva,
codeOffset,
this,
unwindInfo,
gcInfo);
_runtimeFunctions.Add(rtf);
runtimeFunctionId++;
codeOffset += rtf.Size;
}
}