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Code Issues Releases Activity

Remove use of GetFunctionPointerForDelegate to get JIT cache function pointer (#4337)

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* Remove use of GetFunctionPointerForDelegate to get JIT cache function pointer

* Rename FuncPtr to FuncPointer
This commit is contained in:
gdkchan 2023-01-23 19:37:53 -03:00 committed by GitHub
parent 2fd819613f
commit a1a4771ac1
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 26 additions and 15 deletions
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16
ARMeilleure/CodeGen/CompiledFunction.cs
View file

@ -48,9 +48,21 @@ namespace ARMeilleure.CodeGen
/// <returns>A delegate of type <typeparamref name="T"/> pointing to the mapped function</returns>
public T Map<T>()
{
IntPtr codePtr = JitCache.Map(this);
return MapWithPointer<T>(out _);
}
return Marshal.GetDelegateForFunctionPointer<T>(codePtr);
/// <summary>
/// Maps the <see cref="CompiledFunction"/> onto the <see cref="JitCache"/> and returns a delegate of type
/// <typeparamref name="T"/> pointing to the mapped function.
/// </summary>
/// <typeparam name="T">Type of delegate</typeparam>
/// <param name="codePointer">Pointer to the function code in memory</param>
/// <returns>A delegate of type <typeparamref name="T"/> pointing to the mapped function</returns>
public T MapWithPointer<T>(out IntPtr codePointer)
{
codePointer = JitCache.Map(this);
return Marshal.GetDelegateForFunctionPointer<T>(codePointer);
}
}
}

2
ARMeilleure/Instructions/NativeInterface.cs
View file

@ -191,7 +191,7 @@ namespace ARMeilleure.Instructions
{
TranslatedFunction function = Context.Translator.GetOrTranslate(address, GetContext().ExecutionMode);
return (ulong)function.FuncPtr.ToInt64();
return (ulong)function.FuncPointer.ToInt64();
}
public static void InvalidateCacheLine(ulong address)

4
ARMeilleure/Translation/PTC/Ptc.cs
View file

@ -745,9 +745,9 @@ namespace ARMeilleure.Translation.PTC
bool highCq)
{
var cFunc = new CompiledFunction(code, unwindInfo, RelocInfo.Empty);
var gFunc = cFunc.Map<GuestFunction>();
var gFunc = cFunc.MapWithPointer<GuestFunction>(out IntPtr gFuncPointer);
return new TranslatedFunction(gFunc, callCounter, guestSize, highCq);
return new TranslatedFunction(gFunc, gFuncPointer, callCounter, guestSize, highCq);
}
private void UpdateInfo(InfoEntry infoEntry)

7
ARMeilleure/Translation/TranslatedFunction.cs
View file

@ -1,6 +1,5 @@
using ARMeilleure.Common;
using System;
using System.Runtime.InteropServices;
namespace ARMeilleure.Translation
{
@ -8,18 +7,18 @@ namespace ARMeilleure.Translation
{
private readonly GuestFunction _func; // Ensure that this delegate will not be garbage collected.
public IntPtr FuncPointer { get; }
public Counter<uint> CallCounter { get; }
public ulong GuestSize { get; }
public bool HighCq { get; }
public IntPtr FuncPtr { get; }
public TranslatedFunction(GuestFunction func, Counter<uint> callCounter, ulong guestSize, bool highCq)
public TranslatedFunction(GuestFunction func, IntPtr funcPointer, Counter<uint> callCounter, ulong guestSize, bool highCq)
{
_func = func;
FuncPointer = funcPointer;
CallCounter = callCounter;
GuestSize = guestSize;
HighCq = highCq;
FuncPtr = Marshal.GetFunctionPointerForDelegate(func);
}
public ulong Execute(State.ExecutionContext context)

12
ARMeilleure/Translation/Translator.cs
View file

@ -211,7 +211,7 @@ namespace ARMeilleure.Translation
if (oldFunc != func)
{
JitCache.Unmap(func.FuncPtr);
JitCache.Unmap(func.FuncPointer);
func = oldFunc;
}
@ -230,7 +230,7 @@ namespace ARMeilleure.Translation
{
if (FunctionTable.IsValid(guestAddress) && (Optimizations.AllowLcqInFunctionTable || func.HighCq))
{
Volatile.Write(ref FunctionTable.GetValue(guestAddress), (ulong)func.FuncPtr);
Volatile.Write(ref FunctionTable.GetValue(guestAddress), (ulong)func.FuncPointer);
}
}
@ -292,11 +292,11 @@ namespace ARMeilleure.Translation
_ptc.WriteCompiledFunction(address, funcSize, hash, highCq, compiledFunc);
}
GuestFunction func = compiledFunc.Map<GuestFunction>();
GuestFunction func = compiledFunc.MapWithPointer<GuestFunction>(out IntPtr funcPointer);
Allocators.ResetAll();
return new TranslatedFunction(func, counter, funcSize, highCq);
return new TranslatedFunction(func, funcPointer, counter, funcSize, highCq);
}
private void BackgroundTranslate()
@ -537,7 +537,7 @@ namespace ARMeilleure.Translation
foreach (var func in functions)
{
JitCache.Unmap(func.FuncPtr);
JitCache.Unmap(func.FuncPointer);
func.CallCounter?.Dispose();
}
@ -546,7 +546,7 @@ namespace ARMeilleure.Translation
while (_oldFuncs.TryDequeue(out var kv))
{
JitCache.Unmap(kv.Value.FuncPtr);
JitCache.Unmap(kv.Value.FuncPointer);
kv.Value.CallCounter?.Dispose();
}