public override bool TryGetSymbolCore(ulong address, out SymbolResolverResult result)
{
const ulong MIN_ADDR = 0x10000;
if (address < MIN_ADDR)
{
result = default;
return(false);
}
string name;
name = clrRuntime.GetJitHelperFunctionName(address);
if (!(name is null))
{
result = new SymbolResolverResult(SymbolKind.Function, name, address);
return(true);
}
name = clrRuntime.GetMethodTableName(address);
if (!(name is null))
{
result = new SymbolResolverResult(SymbolKind.Data, "methodtable(" + name + ")", address);
return(true);
}
var method = clrRuntime.GetMethodByAddress(address);
if (method is null && (address & ((uint)clrRuntime.PointerSize - 1)) == 0)
{
if (clrRuntime.ReadPointer(address, out ulong newAddress) && newAddress >= MIN_ADDR)
{
method = clrRuntime.GetMethodByAddress(newAddress);
}
}
if (!(method is null))
{
result = new SymbolResolverResult(SymbolKind.Function, method.ToString(), address);
return(true);
}
result = default;
return(false);
}
public override bool TryGetSymbolCore(ulong address, out SymbolResolverResult result)
{
string name;
name = clrRuntime.GetJitHelperFunctionName(address);
if (name != null)
{
result = new SymbolResolverResult(SymbolKind.Function, name, address);
return(true);
}
name = clrRuntime.GetMethodTableName(address);
if (name != null)
{
result = new SymbolResolverResult(SymbolKind.Data, "methodtable(" + name + ")", address);
return(true);
}
result = default;
return(false);
}
public override bool TryGetSymbolCore(ulong address, out SymbolResolverResult result)
{
string name;
name = clrRuntime.GetJitHelperFunctionName(address);
if (name != null)
{
result = new SymbolResolverResult(SymbolKind.Function, name, address);
return(true);
}
name = clrRuntime.GetMethodTableName(address);
if (name != null)
{
result = new SymbolResolverResult(SymbolKind.Data, "methodtable(" + name + ")", address);
return(true);
}
var method = clrRuntime.GetMethodByAddress(address);
if (method == null && address >= 0x10000)
{
if (clrRuntime.ReadPointer(address, out ulong newAddress))
{
method = clrRuntime.GetMethodByAddress(newAddress);
}
}
if (method != null)
{
result = new SymbolResolverResult(SymbolKind.Function, method.ToString(), method.NativeCode);
return(true);
}
result = default;
return(false);
}
private bool GetReferencedAddressToMethodName(out ulong refAddress, out uint codeSize, out string name, Instruction instruction, ClrRuntime runtime)
{
name = null;
refAddress = 0;
codeSize = 0;
bool isAddressOk = false;
for (int i = 0; i < instruction.OpCount; i++)
{
switch (instruction.GetOpKind(i))
{
case OpKind.NearBranch16:
case OpKind.NearBranch32:
case OpKind.NearBranch64:
refAddress = instruction.NearBranchTarget;
isAddressOk = refAddress > ushort.MaxValue;
break;
case OpKind.Immediate64:
refAddress = instruction.GetImmediate(i);
isAddressOk = refAddress > ushort.MaxValue;
break;
case OpKind.Memory64:
refAddress = instruction.MemoryAddress64;
isAddressOk = refAddress > ushort.MaxValue;
break;
case OpKind.Memory when instruction.IsIPRelativeMemoryOperand:
refAddress = instruction.IPRelativeMemoryAddress;
isAddressOk = refAddress > ushort.MaxValue;
break;
case OpKind.Memory:
refAddress = instruction.MemoryDisplacement;
isAddressOk = refAddress > ushort.MaxValue;
break;
}
}
if (refAddress == 0)
{
return(false);
}
var jitHelperFunctionName = runtime.GetJitHelperFunctionName(refAddress);
if (string.IsNullOrWhiteSpace(jitHelperFunctionName) == false)
{
name = jitHelperFunctionName;
return(true);
}
var methodTableName = runtime.GetMethodTableName(refAddress);
if (string.IsNullOrWhiteSpace(methodTableName) == false)
{
name = methodTableName;
return(true);
}
var methodDescriptor = runtime.GetMethodByHandle(refAddress);
if (methodDescriptor != null)
{
name = methodDescriptor.Name;
refAddress = methodDescriptor.HotColdInfo.HotStart;
codeSize = methodDescriptor.HotColdInfo.HotSize;
return(true);
}
var methodCall = runtime.GetMethodByAddress(refAddress);
if (methodCall != null && string.IsNullOrWhiteSpace(methodCall.Name) == false)
{
name = methodCall.Name;
refAddress = methodCall.HotColdInfo.HotStart;
codeSize = methodCall.HotColdInfo.HotSize;
return(true);
}
if (methodCall == null)
{
if (runtime.ReadPointer(refAddress, out ulong newAddress) && newAddress > ushort.MaxValue)
{
methodCall = runtime.GetMethodByAddress(newAddress);
}
if (methodCall is null)
{
return(false);
}
name = methodCall.Name;
refAddress = methodCall.HotColdInfo.HotStart;
codeSize = methodCall.HotColdInfo.HotSize;
return(true);
}
return(false);
}
