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Optimize address translation and write tracking on the MMU (#571)

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* Implement faster address translation and write tracking on the MMU

* Rename MemoryAlloc to MemoryManagement, and other nits

* Support multi-level page tables

* Fix typo

* Reword comment a bit

* Support scalar vector loads/stores on the memory fast path, and minor fixes

* Add missing cast

* Alignment

* Fix VirtualFree function signature

* Change MemoryProtection enum to uint aswell for consistency
This commit is contained in:
gdkchan 2019-02-24 04:24:35 -03:00 committed by jduncanator
parent 5ba8c8bedc
commit 9bb400dfea
15 changed files with 870 additions and 495 deletions
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14
Events/InvalidAccessEventArgs.cs
View file

@ -1,14 +0,0 @@
using System;
namespace ChocolArm64.Events
{
public class MemoryAccessEventArgs : EventArgs
{
public long Position { get; private set; }
public MemoryAccessEventArgs(long position)
{
Position = position;
}
}
}

13
Exceptions/VmmPageFaultException.cs
View file

@ -1,13 +0,0 @@
using System;
namespace ChocolArm64.Exceptions
{
public class VmmPageFaultException : Exception
{
private const string ExMsg = "Tried to access unmapped address 0x{0:x16}!";
public VmmPageFaultException() { }
public VmmPageFaultException(long position) : base(string.Format(ExMsg, position)) { }
}
}

11
Instructions/InstEmitMemory.cs
View file

@ -31,8 +31,6 @@ namespace ChocolArm64.Instructions
{
OpCodeMem64 op = (OpCodeMem64)context.CurrOp;
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
EmitLoadAddress(context);
if (signed && op.Extend64)
@ -69,7 +67,6 @@ namespace ChocolArm64.Instructions
return;
}
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdc_I8(op.Imm);
if (op.Signed)
@ -116,13 +113,10 @@ namespace ChocolArm64.Instructions
}
}
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
EmitLoadAddress(context);
EmitReadAndStore(op.Rt);
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdtmp();
context.EmitLdc_I8(1 << op.Size);
@ -137,8 +131,6 @@ namespace ChocolArm64.Instructions
{
OpCodeMem64 op = (OpCodeMem64)context.CurrOp;
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
EmitLoadAddress(context);
if (op is IOpCodeSimd64)
@ -159,8 +151,6 @@ namespace ChocolArm64.Instructions
{
OpCodeMemPair64 op = (OpCodeMemPair64)context.CurrOp;
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
EmitLoadAddress(context);
if (op is IOpCodeSimd64)
@ -174,7 +164,6 @@ namespace ChocolArm64.Instructions
EmitWriteCall(context, op.Size);
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdtmp();
context.EmitLdc_I8(1 << op.Size);

6
Instructions/InstEmitMemory32.cs
View file

@ -64,9 +64,7 @@ namespace ChocolArm64.Instructions
{
if ((mask & 1) != 0)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdtmp();
context.EmitLdc_I4(offset);
context.Emit(OpCodes.Add);
@ -129,9 +127,7 @@ namespace ChocolArm64.Instructions
{
if ((mask & 1) != 0)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdtmp();
context.EmitLdc_I4(offset);
context.Emit(OpCodes.Add);
@ -198,8 +194,6 @@ namespace ChocolArm64.Instructions
context.EmitSttmp();
}
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
if (op.Index)
{
context.EmitLdtmp();

22
Instructions/InstEmitMemoryEx.cs
View file

@ -72,6 +72,8 @@ namespace ChocolArm64.Instructions
void WriteExclusiveValue(string propName)
{
context.Emit(OpCodes.Dup);
if (op.Size < 3)
{
context.Emit(OpCodes.Conv_U8);
@ -82,13 +84,6 @@ namespace ChocolArm64.Instructions
context.EmitLdtmp2();
context.EmitCallPrivatePropSet(typeof(CpuThreadState), propName);
context.EmitLdtmp2();
if (op.Size < 3)
{
context.Emit(OpCodes.Conv_U4);
}
}
if (pair)
@ -99,7 +94,6 @@ namespace ChocolArm64.Instructions
//method to read 128-bits atomically.
if (op.Size == 2)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdtmp();
EmitReadZxCall(context, 3);
@ -164,13 +158,12 @@ namespace ChocolArm64.Instructions
}
else
{
throw new InvalidOperationException($"Invalid store size of {1 << op.Size} bytes.");
throw new InvalidOperationException($"Invalid load size of {1 << op.Size} bytes.");
}
}
else
{
//8, 16, 32 or 64-bits (non-pairwise) load.
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdtmp();
EmitReadZxCall(context, op.Size);
@ -320,9 +313,8 @@ namespace ChocolArm64.Instructions
}
else
{
void EmitWrite(int rt, long offset)
void EmitWriteCall(int rt, long offset)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(op.Rn);
if (offset != 0)
@ -334,14 +326,14 @@ namespace ChocolArm64.Instructions
context.EmitLdintzr(rt);
EmitWriteCall(context, op.Size);
InstEmitMemoryHelper.EmitWriteCall(context, op.Size);
}
EmitWrite(op.Rt, 0);
EmitWriteCall(op.Rt, 0);
if (pair)
{
EmitWrite(op.Rt2, 1 << op.Size);
EmitWriteCall(op.Rt2, 1 << op.Size);
}
}
}

419
Instructions/InstEmitMemoryHelper.cs
View file

@ -1,13 +1,20 @@
using ChocolArm64.Decoders;
using ChocolArm64.Memory;
using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection.Emit;
using System.Runtime.Intrinsics.X86;
namespace ChocolArm64.Instructions
{
static class InstEmitMemoryHelper
{
private static int _tempIntAddress = ILEmitterCtx.GetIntTempIndex();
private static int _tempIntValue = ILEmitterCtx.GetIntTempIndex();
private static int _tempIntPtAddr = ILEmitterCtx.GetIntTempIndex();
private static int _tempVecValue = ILEmitterCtx.GetVecTempIndex();
private enum Extension
{
Zx,
@ -32,9 +39,10 @@ namespace ChocolArm64.Instructions
private static void EmitReadCall(ILEmitterCtx context, Extension ext, int size)
{
bool isSimd = GetIsSimd(context);
//Save the address into a temp.
context.EmitStint(_tempIntAddress);
string name = null;
bool isSimd = IsSimd(context);
if (size < 0 || size > (isSimd ? 4 : 3))
{
@ -43,28 +51,27 @@ namespace ChocolArm64.Instructions
if (isSimd)
{
switch (size)
if (context.Tier == TranslationTier.Tier0 || !Sse2.IsSupported || size < 2)
{
case 0: name = nameof(MemoryManager.ReadVector8); break;
case 1: name = nameof(MemoryManager.ReadVector16); break;
case 2: name = nameof(MemoryManager.ReadVector32); break;
case 3: name = nameof(MemoryManager.ReadVector64); break;
case 4: name = nameof(MemoryManager.ReadVector128); break;
EmitReadVectorFallback(context, size);
}
else
{
EmitReadVector(context, size);
}
}
else
{
switch (size)
if (context.Tier == TranslationTier.Tier0)
{
case 0: name = nameof(MemoryManager.ReadByte); break;
case 1: name = nameof(MemoryManager.ReadUInt16); break;
case 2: name = nameof(MemoryManager.ReadUInt32); break;
case 3: name = nameof(MemoryManager.ReadUInt64); break;
EmitReadIntFallback(context, size);
}
else
{
EmitReadInt(context, size);
}
}
context.EmitCall(typeof(MemoryManager), name);
if (!isSimd)
{
if (ext == Extension.Sx32 ||
@ -89,50 +96,390 @@ namespace ChocolArm64.Instructions
public static void EmitWriteCall(ILEmitterCtx context, int size)
{
bool isSimd = GetIsSimd(context);
bool isSimd = IsSimd(context);
string name = null;
//Save the value into a temp.
if (isSimd)
{
context.EmitStvec(_tempVecValue);
}
else
{
context.EmitStint(_tempIntValue);
}
//Save the address into a temp.
context.EmitStint(_tempIntAddress);
if (size < 0 || size > (isSimd ? 4 : 3))
{
throw new ArgumentOutOfRangeException(nameof(size));
}
if (size < 3 && !isSimd)
{
context.Emit(OpCodes.Conv_I4);
}
if (isSimd)
{
switch (size)
if (context.Tier == TranslationTier.Tier0 || !Sse2.IsSupported || size < 2)
{
case 0: name = nameof(MemoryManager.WriteVector8); break;
case 1: name = nameof(MemoryManager.WriteVector16); break;
case 2: name = nameof(MemoryManager.WriteVector32); break;
case 3: name = nameof(MemoryManager.WriteVector64); break;
case 4: name = nameof(MemoryManager.WriteVector128); break;
EmitWriteVectorFallback(context, size);
}
else
{
EmitWriteVector(context, size);
}
}
else
{
switch (size)
if (context.Tier == TranslationTier.Tier0)
{
case 0: name = nameof(MemoryManager.WriteByte); break;
case 1: name = nameof(MemoryManager.WriteUInt16); break;
case 2: name = nameof(MemoryManager.WriteUInt32); break;
case 3: name = nameof(MemoryManager.WriteUInt64); break;
EmitWriteIntFallback(context, size);
}
else
{
EmitWriteInt(context, size);
}
}
context.EmitCall(typeof(MemoryManager), name);
}
private static bool GetIsSimd(ILEmitterCtx context)
private static bool IsSimd(ILEmitterCtx context)
{
return context.CurrOp is IOpCodeSimd64 &&
!(context.CurrOp is OpCodeSimdMemMs64 ||
context.CurrOp is OpCodeSimdMemSs64);
}
private static void EmitReadInt(ILEmitterCtx context, int size)
{
EmitAddressCheck(context, size);
ILLabel lblFastPath = new ILLabel();
ILLabel lblSlowPath = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.Emit(OpCodes.Brfalse_S, lblFastPath);
context.MarkLabel(lblSlowPath);
EmitReadIntFallback(context, size);
context.Emit(OpCodes.Br, lblEnd);
context.MarkLabel(lblFastPath);
EmitPtPointerLoad(context, lblSlowPath);
switch (size)
{
case 0: context.Emit(OpCodes.Ldind_U1); break;
case 1: context.Emit(OpCodes.Ldind_U2); break;
case 2: context.Emit(OpCodes.Ldind_U4); break;
case 3: context.Emit(OpCodes.Ldind_I8); break;
}
context.MarkLabel(lblEnd);
}
private static void EmitReadVector(ILEmitterCtx context, int size)
{
EmitAddressCheck(context, size);
ILLabel lblFastPath = new ILLabel();
ILLabel lblSlowPath = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.Emit(OpCodes.Brfalse_S, lblFastPath);
context.MarkLabel(lblSlowPath);
EmitReadVectorFallback(context, size);
context.Emit(OpCodes.Br, lblEnd);
context.MarkLabel(lblFastPath);
EmitPtPointerLoad(context, lblSlowPath);
switch (size)
{
case 2: context.EmitCall(typeof(Sse), nameof(Sse.LoadScalarVector128)); break;
case 3:
{
Type[] types = new Type[] { typeof(double*) };
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.LoadScalarVector128), types));
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorDoubleToSingle));
break;
}
case 4: context.EmitCall(typeof(Sse), nameof(Sse.LoadAlignedVector128)); break;
throw new InvalidOperationException($"Invalid vector load size of {1 << size} bytes.");
}
context.MarkLabel(lblEnd);
}
private static void EmitWriteInt(ILEmitterCtx context, int size)
{
EmitAddressCheck(context, size);
ILLabel lblFastPath = new ILLabel();
ILLabel lblSlowPath = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.Emit(OpCodes.Brfalse_S, lblFastPath);
context.MarkLabel(lblSlowPath);
EmitWriteIntFallback(context, size);
context.Emit(OpCodes.Br, lblEnd);
context.MarkLabel(lblFastPath);
EmitPtPointerLoad(context, lblSlowPath);
context.EmitLdint(_tempIntValue);
if (size < 3)
{
context.Emit(OpCodes.Conv_U4);
}
switch (size)
{
case 0: context.Emit(OpCodes.Stind_I1); break;
case 1: context.Emit(OpCodes.Stind_I2); break;
case 2: context.Emit(OpCodes.Stind_I4); break;
case 3: context.Emit(OpCodes.Stind_I8); break;
}
context.MarkLabel(lblEnd);
}
private static void EmitWriteVector(ILEmitterCtx context, int size)
{
EmitAddressCheck(context, size);
ILLabel lblFastPath = new ILLabel();
ILLabel lblSlowPath = new ILLabel();
ILLabel lblEnd = new ILLabel();
context.Emit(OpCodes.Brfalse_S, lblFastPath);
context.MarkLabel(lblSlowPath);
EmitWriteVectorFallback(context, size);
context.Emit(OpCodes.Br, lblEnd);
context.MarkLabel(lblFastPath);
EmitPtPointerLoad(context, lblSlowPath);
context.EmitLdvec(_tempVecValue);
switch (size)
{
case 2: context.EmitCall(typeof(Sse), nameof(Sse.StoreScalar)); break;
case 3:
{
VectorHelper.EmitCall(context, nameof(VectorHelper.VectorSingleToDouble));
context.EmitCall(typeof(Sse2), nameof(Sse2.StoreScalar));
break;
}
case 4: context.EmitCall(typeof(Sse), nameof(Sse.StoreAligned)); break;
default: throw new InvalidOperationException($"Invalid vector store size of {1 << size} bytes.");
}
context.MarkLabel(lblEnd);
}
private static void EmitAddressCheck(ILEmitterCtx context, int size)
{
long addressCheckMask = ~(context.Memory.AddressSpaceSize - 1);
addressCheckMask |= (1u << size) - 1;
context.EmitLdint(_tempIntAddress);
context.EmitLdc_I(addressCheckMask);
context.Emit(OpCodes.And);
}
private static void EmitPtPointerLoad(ILEmitterCtx context, ILLabel lblFallbackPath)
{
context.EmitLdc_I8(context.Memory.PageTable.ToInt64());
context.Emit(OpCodes.Conv_I);
int bit = MemoryManager.PageBits;
do
{
context.EmitLdint(_tempIntAddress);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
context.EmitLsr(bit);
bit += context.Memory.PtLevelBits;
if (bit < context.Memory.AddressSpaceBits)
{
context.EmitLdc_I8(context.Memory.PtLevelMask);
context.Emit(OpCodes.And);
}
context.EmitLdc_I8(IntPtr.Size);
context.Emit(OpCodes.Mul);
context.Emit(OpCodes.Conv_I);
context.Emit(OpCodes.Add);
context.Emit(OpCodes.Ldind_I);
}
while (bit < context.Memory.AddressSpaceBits);
if (!context.Memory.HasWriteWatchSupport)
{
context.Emit(OpCodes.Conv_U8);
context.EmitStint(_tempIntPtAddr);
context.EmitLdint(_tempIntPtAddr);
context.EmitLdc_I8(MemoryManager.PteFlagsMask);
context.Emit(OpCodes.And);
context.Emit(OpCodes.Brtrue, lblFallbackPath);
context.EmitLdint(_tempIntPtAddr);
context.Emit(OpCodes.Conv_I);
}
context.EmitLdint(_tempIntAddress);
context.EmitLdc_I(MemoryManager.PageMask);
context.Emit(OpCodes.And);
context.Emit(OpCodes.Conv_I);
context.Emit(OpCodes.Add);
}
private static void EmitReadIntFallback(ILEmitterCtx context, int size)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(_tempIntAddress);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
string fallbackMethodName = null;
switch (size)
{
case 0: fallbackMethodName = nameof(MemoryManager.ReadByte); break;
case 1: fallbackMethodName = nameof(MemoryManager.ReadUInt16); break;
case 2: fallbackMethodName = nameof(MemoryManager.ReadUInt32); break;
case 3: fallbackMethodName = nameof(MemoryManager.ReadUInt64); break;
}
context.EmitCall(typeof(MemoryManager), fallbackMethodName);
}
private static void EmitReadVectorFallback(ILEmitterCtx context, int size)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(_tempIntAddress);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
string fallbackMethodName = null;
switch (size)
{
case 0: fallbackMethodName = nameof(MemoryManager.ReadVector8); break;
case 1: fallbackMethodName = nameof(MemoryManager.ReadVector16); break;
case 2: fallbackMethodName = nameof(MemoryManager.ReadVector32); break;
case 3: fallbackMethodName = nameof(MemoryManager.ReadVector64); break;
case 4: fallbackMethodName = nameof(MemoryManager.ReadVector128); break;
}
context.EmitCall(typeof(MemoryManager), fallbackMethodName);
}
private static void EmitWriteIntFallback(ILEmitterCtx context, int size)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(_tempIntAddress);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
context.EmitLdint(_tempIntValue);
if (size < 3)
{
context.Emit(OpCodes.Conv_U4);
}
string fallbackMethodName = null;
switch (size)
{
case 0: fallbackMethodName = nameof(MemoryManager.WriteByte); break;
case 1: fallbackMethodName = nameof(MemoryManager.WriteUInt16); break;
case 2: fallbackMethodName = nameof(MemoryManager.WriteUInt32); break;
case 3: fallbackMethodName = nameof(MemoryManager.WriteUInt64); break;
}
context.EmitCall(typeof(MemoryManager), fallbackMethodName);
}
private static void EmitWriteVectorFallback(ILEmitterCtx context, int size)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(_tempIntAddress);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
context.EmitLdvec(_tempVecValue);
string fallbackMethodName = null;
switch (size)
{
case 0: fallbackMethodName = nameof(MemoryManager.WriteVector8); break;
case 1: fallbackMethodName = nameof(MemoryManager.WriteVector16); break;
case 2: fallbackMethodName = nameof(MemoryManager.WriteVector32); break;
case 3: fallbackMethodName = nameof(MemoryManager.WriteVector64); break;
case 4: fallbackMethodName = nameof(MemoryManager.WriteVector128); break;
}
context.EmitCall(typeof(MemoryManager), fallbackMethodName);
}
}
}

3
Instructions/InstEmitSimdMemory.cs
View file

@ -45,7 +45,6 @@ namespace ChocolArm64.Instructions
if (isLoad)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(op.Rn);
context.EmitLdc_I8(offset);
@ -62,7 +61,6 @@ namespace ChocolArm64.Instructions
}
else
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(op.Rn);
context.EmitLdc_I8(offset);
@ -90,7 +88,6 @@ namespace ChocolArm64.Instructions
void EmitMemAddress()
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdint(op.Rn);
context.EmitLdc_I8(offset);

1
Instructions/InstEmitSystem.cs
View file

@ -102,7 +102,6 @@ namespace ChocolArm64.Instructions
//DC ZVA
for (int offs = 0; offs < (4 << CpuThreadState.DczSizeLog2); offs += 8)
{
context.EmitLdarg(TranslatedSub.MemoryArgIdx);
context.EmitLdintzr(op.Rt);
context.EmitLdc_I(offs);

6
Memory/CompareExchange128.cs
View file

@ -95,7 +95,7 @@ namespace ChocolArm64.Memory
int cpuId = getCpuId();
MemoryAlloc.Free(funcPtr);
MemoryManagement.Free(funcPtr);
return (cpuId & (1 << 13)) != 0;
}
@ -104,7 +104,7 @@ namespace ChocolArm64.Memory
{
ulong codeLength = (ulong)code.Length;
IntPtr funcPtr = MemoryAlloc.Allocate(codeLength);
IntPtr funcPtr = MemoryManagement.Allocate(codeLength);
unsafe
{
@ -118,7 +118,7 @@ namespace ChocolArm64.Memory
}
}
MemoryAlloc.Reprotect(funcPtr, codeLength, MemoryProtection.Execute);
MemoryManagement.Reprotect(funcPtr, codeLength, MemoryProtection.Execute);
return funcPtr;
}

20
Memory/MemoryAlloc.cs → Memory/MemoryManagement.cs
View file

@ -4,7 +4,7 @@ using System.Runtime.InteropServices;
namespace ChocolArm64.Memory
{
public static class MemoryAlloc
public static class MemoryManagement
{
public static bool HasWriteWatchSupport => RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
@ -14,12 +14,12 @@ namespace ChocolArm64.Memory
{
IntPtr sizeNint = new IntPtr((long)size);
return MemoryAllocWindows.Allocate(sizeNint);
return MemoryManagementWindows.Allocate(sizeNint);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
return MemoryAllocUnix.Allocate(size);
return MemoryManagementUnix.Allocate(size);
}
else
{
@ -33,12 +33,12 @@ namespace ChocolArm64.Memory
{
IntPtr sizeNint = new IntPtr((long)size);
return MemoryAllocWindows.AllocateWriteTracked(sizeNint);
return MemoryManagementWindows.AllocateWriteTracked(sizeNint);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
return MemoryAllocUnix.Allocate(size);
return MemoryManagementUnix.Allocate(size);
}
else
{
@ -54,12 +54,12 @@ namespace ChocolArm64.Memory
{
IntPtr sizeNint = new IntPtr((long)size);
result = MemoryAllocWindows.Reprotect(address, sizeNint, permission);
result = MemoryManagementWindows.Reprotect(address, sizeNint, permission);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
result = MemoryAllocUnix.Reprotect(address, size, permission);
result = MemoryManagementUnix.Reprotect(address, size, permission);
}
else
{
@ -76,12 +76,12 @@ namespace ChocolArm64.Memory
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return MemoryAllocWindows.Free(address);
return MemoryManagementWindows.Free(address);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ||
RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
return MemoryAllocUnix.Free(address);
return MemoryManagementUnix.Free(address);
}
else
{
@ -101,7 +101,7 @@ namespace ChocolArm64.Memory
//write tracking support on the OS.
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
return MemoryAllocWindows.GetModifiedPages(address, size, addresses, out count);
return MemoryManagementWindows.GetModifiedPages(address, size, addresses, out count);
}
else
{

2
Memory/MemoryAllocUnix.cs → Memory/MemoryManagementUnix.cs
View file

@ -3,7 +3,7 @@ using System;
namespace ChocolArm64.Memory
{
static class MemoryAllocUnix
static class MemoryManagementUnix
{
public static IntPtr Allocate(ulong size)
{

8
Memory/MemoryAllocWindows.cs → Memory/MemoryManagementWindows.cs
View file

@ -4,7 +4,7 @@ using System.Runtime.InteropServices;
namespace ChocolArm64.Memory
{
static class MemoryAllocWindows
static class MemoryManagementWindows
{
[Flags]
private enum AllocationType : uint
@ -21,7 +21,7 @@ namespace ChocolArm64.Memory
}
[Flags]
private enum MemoryProtection
private enum MemoryProtection : uint
{
NoAccess = 0x01,
ReadOnly = 0x02,
@ -59,7 +59,7 @@ namespace ChocolArm64.Memory
[DllImport("kernel32.dll")]
private static extern bool VirtualFree(
IntPtr lpAddress,
uint dwSize,
IntPtr dwSize,
AllocationType dwFreeType);
[DllImport("kernel32.dll")]
@ -127,7 +127,7 @@ namespace ChocolArm64.Memory
public static bool Free(IntPtr address)
{
return VirtualFree(address, 0, AllocationType.Release);
return VirtualFree(address, IntPtr.Zero, AllocationType.Release);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]

704
Memory/MemoryManager.cs
View file

@ -1,8 +1,5 @@
using ChocolArm64.Events;
using ChocolArm64.Exceptions;
using ChocolArm64.Instructions;
using System;
using System.Collections.Concurrent;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.Intrinsics;
@ -10,52 +7,399 @@ using System.Runtime.Intrinsics.X86;
using System.Threading;
using static ChocolArm64.Memory.CompareExchange128;
using static ChocolArm64.Memory.MemoryManagement;
namespace ChocolArm64.Memory
{
public unsafe class MemoryManager : IMemory, IDisposable
{
private const int PtLvl0Bits = 13;
private const int PtLvl1Bits = 14;
public const int PageBits = 12;
public const int PageBits = 12;
public const int PageSize = 1 << PageBits;
public const int PageMask = PageSize - 1;
private const int PtLvl0Size = 1 << PtLvl0Bits;
private const int PtLvl1Size = 1 << PtLvl1Bits;
public const int PageSize = 1 << PageBits;
private const long PteFlagNotModified = 1;
private const int PtLvl0Mask = PtLvl0Size - 1;
private const int PtLvl1Mask = PtLvl1Size - 1;
public const int PageMask = PageSize - 1;
private const int PtLvl0Bit = PageBits + PtLvl1Bits;
private const int PtLvl1Bit = PageBits;
private ConcurrentDictionary<long, IntPtr> _observedPages;
internal const long PteFlagsMask = 7;
public IntPtr Ram { get; private set; }
private byte* _ramPtr;
private byte*** _pageTable;
private IntPtr _pageTable;
public event EventHandler<MemoryAccessEventArgs> InvalidAccess;
internal IntPtr PageTable => _pageTable;
public event EventHandler<MemoryAccessEventArgs> ObservedAccess;
internal int PtLevelBits { get; }
internal int PtLevelSize { get; }
internal int PtLevelMask { get; }
public MemoryManager(IntPtr ram)
public bool HasWriteWatchSupport => MemoryManagement.HasWriteWatchSupport;
public int AddressSpaceBits { get; }
public long AddressSpaceSize { get; }
public MemoryManager(
IntPtr ram,
int addressSpaceBits = 48,
bool useFlatPageTable = false)
{
_observedPages = new ConcurrentDictionary<long, IntPtr>();
Ram = ram;
_ramPtr = (byte*)ram;
_pageTable = (byte***)Marshal.AllocHGlobal(PtLvl0Size * IntPtr.Size);
AddressSpaceBits = addressSpaceBits;
AddressSpaceSize = 1L << addressSpaceBits;
for (int l0 = 0; l0 < PtLvl0Size; l0++)
//When flat page table is requested, we use a single
//array for the mappings of the entire address space.
//This has better performance, but also high memory usage.
//The multi level page table uses 9 bits per level, so
//the memory usage is lower, but the performance is also
//lower, since each address translation requires multiple reads.
if (useFlatPageTable)
{
_pageTable[l0] = null;
PtLevelBits = addressSpaceBits - PageBits;
}
else
{
PtLevelBits = 9;
}
PtLevelSize = 1 << PtLevelBits;
PtLevelMask = PtLevelSize - 1;
_pageTable = Allocate((ulong)(PtLevelSize * IntPtr.Size));
}
public void Map(long va, long pa, long size)
{
SetPtEntries(va, _ramPtr + pa, size);
}
public void Unmap(long position, long size)
{
SetPtEntries(position, null, size);
}
public bool IsMapped(long position)
{
return Translate(position) != IntPtr.Zero;
}
public long GetPhysicalAddress(long virtualAddress)
{
byte* ptr = (byte*)Translate(virtualAddress);
return (long)(ptr - _ramPtr);
}
private IntPtr Translate(long position)
{
if (!IsValidPosition(position))
{
return IntPtr.Zero;
}
byte* ptr = GetPtEntry(position);
ulong ptrUlong = (ulong)ptr;
if ((ptrUlong & PteFlagsMask) != 0)
{
ptrUlong &= ~(ulong)PteFlagsMask;
ptr = (byte*)ptrUlong;
}
return new IntPtr(ptr + (position & PageMask));
}
private IntPtr TranslateWrite(long position)
{
if (!IsValidPosition(position))
{
return IntPtr.Zero;
}
byte* ptr = GetPtEntry(position);
ulong ptrUlong = (ulong)ptr;
if ((ptrUlong & PteFlagsMask) != 0)
{
if ((ptrUlong & PteFlagNotModified) != 0)
{
ClearPtEntryFlag(position, PteFlagNotModified);
}
ptrUlong &= ~(ulong)PteFlagsMask;
ptr = (byte*)ptrUlong;
}
return new IntPtr(ptr + (position & PageMask));
}
private byte* GetPtEntry(long position)
{
return *(byte**)GetPtPtr(position);
}
private void SetPtEntries(long va, byte* ptr, long size)
{
long endPosition = (va + size + PageMask) & ~PageMask;
while ((ulong)va < (ulong)endPosition)
{
SetPtEntry(va, ptr);
va += PageSize;
if (ptr != null)
{
ptr += PageSize;
}
}
}
private void SetPtEntry(long position, byte* ptr)
{
*(byte**)GetPtPtr(position) = ptr;
}
private void SetPtEntryFlag(long position, long flag)
{
ModifyPtEntryFlag(position, flag, setFlag: true);
}
private void ClearPtEntryFlag(long position, long flag)
{
ModifyPtEntryFlag(position, flag, setFlag: false);
}
private void ModifyPtEntryFlag(long position, long flag, bool setFlag)
{
IntPtr* pt = (IntPtr*)_pageTable;
while (true)
{
IntPtr* ptPtr = GetPtPtr(position);
IntPtr old = *ptPtr;
long modified = old.ToInt64();
if (setFlag)
{
modified |= flag;
}
else
{
modified &= ~flag;
}
IntPtr origValue = Interlocked.CompareExchange(ref *ptPtr, new IntPtr(modified), old);
if (origValue == old)
{
break;
}
}
}
private IntPtr* GetPtPtr(long position)
{
if (!IsValidPosition(position))
{
throw new ArgumentOutOfRangeException(nameof(position));
}
IntPtr nextPtr = _pageTable;
IntPtr* ptePtr = null;
int bit = PageBits;
while (true)
{
long index = (position >> bit) & PtLevelMask;
ptePtr = &((IntPtr*)nextPtr)[index];
bit += PtLevelBits;
if (bit >= AddressSpaceBits)
{
break;
}
nextPtr = *ptePtr;
if (nextPtr == IntPtr.Zero)
{
//Entry does not yet exist, allocate a new one.
IntPtr newPtr = Allocate((ulong)(PtLevelSize * IntPtr.Size));
//Try to swap the current pointer (should be zero), with the allocated one.
nextPtr = Interlocked.Exchange(ref *ptePtr, newPtr);
//If the old pointer is not null, then another thread already has set it.
if (nextPtr != IntPtr.Zero)
{
Free(newPtr);
}
else
{
nextPtr = newPtr;
}
}
}
return ptePtr;
}
public bool IsRegionModified(long position, long size)
{
if (!HasWriteWatchSupport)
{
return IsRegionModifiedFallback(position, size);
}
IntPtr address = Translate(position);
IntPtr baseAddr = address;
IntPtr expectedAddr = address;
long pendingPages = 0;
long pages = size / PageSize;
bool modified = false;
bool IsAnyPageModified()
{
IntPtr pendingSize = new IntPtr(pendingPages * PageSize);
IntPtr[] addresses = new IntPtr[pendingPages];
bool result = GetModifiedPages(baseAddr, pendingSize, addresses, out ulong count);
if (result)
{
return count != 0;
}
else
{
return true;
}
}
while (pages-- > 0)
{
if (address != expectedAddr)
{
modified |= IsAnyPageModified();
baseAddr = address;
pendingPages = 0;
}
expectedAddr = address + PageSize;
pendingPages++;
if (pages == 0)
{
break;
}
position += PageSize;
address = Translate(position);
}
if (pendingPages != 0)
{
modified |= IsAnyPageModified();
}
return modified;
}
private unsafe bool IsRegionModifiedFallback(long position, long size)
{
long endAddr = (position + size + PageMask) & ~PageMask;
bool modified = false;
while ((ulong)position < (ulong)endAddr)
{
if (IsValidPosition(position))
{
byte* ptr = ((byte**)_pageTable)[position >> PageBits];
ulong ptrUlong = (ulong)ptr;
if ((ptrUlong & PteFlagNotModified) == 0)
{
modified = true;
SetPtEntryFlag(position, PteFlagNotModified);
}
}
else
{
modified = true;
}
position += PageSize;
}
return modified;
}
public bool TryGetHostAddress(long position, long size, out IntPtr ptr)
{
if (IsContiguous(position, size))
{
ptr = (IntPtr)Translate(position);
return true;
}
ptr = IntPtr.Zero;
return false;
}
private bool IsContiguous(long position, long size)
{
long endPos = position + size;
position &= ~PageMask;
long expectedPa = GetPhysicalAddress(position);
while ((ulong)position < (ulong)endPos)
{
long pa = GetPhysicalAddress(position);
if (pa != expectedPa)
{
return false;
}
position += PageSize;
expectedPa += PageSize;
}
return true;
}
public bool IsValidPosition(long position)
{
return (ulong)position < (ulong)AddressSpaceSize;
}
internal bool AtomicCompareExchange2xInt32(
@ -86,7 +430,7 @@ namespace ChocolArm64.Memory
AbortWithAlignmentFault(position);
}
IntPtr ptr = new IntPtr(TranslateWrite(position));
IntPtr ptr = TranslateWrite(position);
return InterlockedCompareExchange128(ptr, expectedLow, expectedHigh, desiredLow, desiredHigh);
}
@ -98,7 +442,7 @@ namespace ChocolArm64.Memory
AbortWithAlignmentFault(position);
}
IntPtr ptr = new IntPtr(Translate(position));
IntPtr ptr = Translate(position);
InterlockedRead128(ptr, out ulong low, out ulong high);
@ -371,7 +715,7 @@ namespace ChocolArm64.Memory
int copySize = (int)(pageLimit - position);
Marshal.Copy((IntPtr)Translate(position), data, offset, copySize);
Marshal.Copy(Translate(position), data, offset, copySize);
position += copySize;
offset += copySize;
@ -408,7 +752,7 @@ namespace ChocolArm64.Memory
int copySize = (int)(pageLimit - position);
Marshal.Copy((IntPtr)Translate(position), data, offset, copySize);
Marshal.Copy(Translate(position), data, offset, copySize);
position += copySize;
offset += copySize;
@ -571,7 +915,7 @@ namespace ChocolArm64.Memory
int copySize = (int)(pageLimit - position);
Marshal.Copy(data, offset, (IntPtr)TranslateWrite(position), copySize);
Marshal.Copy(data, offset, TranslateWrite(position), copySize);
position += copySize;
offset += copySize;
@ -601,7 +945,7 @@ namespace ChocolArm64.Memory
int copySize = (int)(pageLimit - position);
Marshal.Copy(data, offset, (IntPtr)TranslateWrite(position), copySize);
Marshal.Copy(data, offset, Translate(position), copySize);
position += copySize;
offset += copySize;
@ -614,8 +958,8 @@ namespace ChocolArm64.Memory
if (IsContiguous(src, size) &&
IsContiguous(dst, size))
{
byte* srcPtr = Translate(src);
byte* dstPtr = TranslateWrite(dst);
byte* srcPtr = (byte*)Translate(src);
byte* dstPtr = (byte*)Translate(dst);
Buffer.MemoryCopy(srcPtr, dstPtr, size, size);
}
@ -625,266 +969,6 @@ namespace ChocolArm64.Memory
}
}
public void Map(long va, long pa, long size)
{
SetPtEntries(va, _ramPtr + pa, size);
}
public void Unmap(long position, long size)
{
SetPtEntries(position, null, size);
StopObservingRegion(position, size);
}
public bool IsMapped(long position)
{
if (!(IsValidPosition(position)))
{
return false;
}
long l0 = (position >> PtLvl0Bit) & PtLvl0Mask;
long l1 = (position >> PtLvl1Bit) & PtLvl1Mask;
if (_pageTable[l0] == null)
{
return false;
}
return _pageTable[l0][l1] != null || _observedPages.ContainsKey(position >> PageBits);
}
public long GetPhysicalAddress(long virtualAddress)
{
byte* ptr = Translate(virtualAddress);
return (long)(ptr - _ramPtr);
}
internal byte* Translate(long position)
{
long l0 = (position >> PtLvl0Bit) & PtLvl0Mask;
long l1 = (position >> PtLvl1Bit) & PtLvl1Mask;
long old = position;
byte** lvl1 = _pageTable[l0];
if ((position >> (PtLvl0Bit + PtLvl0Bits)) != 0)
{
goto Unmapped;
}
if (lvl1 == null)
{
goto Unmapped;
}
position &= PageMask;
byte* ptr = lvl1[l1];
if (ptr == null)
{
goto Unmapped;
}
return ptr + position;
Unmapped:
return HandleNullPte(old);
}
private byte* HandleNullPte(long position)
{
long key = position >> PageBits;
if (_observedPages.TryGetValue(key, out IntPtr ptr))
{
return (byte*)ptr + (position & PageMask);
}
InvalidAccess?.Invoke(this, new MemoryAccessEventArgs(position));
throw new VmmPageFaultException(position);
}
internal byte* TranslateWrite(long position)
{
long l0 = (position >> PtLvl0Bit) & PtLvl0Mask;
long l1 = (position >> PtLvl1Bit) & PtLvl1Mask;
long old = position;
byte** lvl1 = _pageTable[l0];
if ((position >> (PtLvl0Bit + PtLvl0Bits)) != 0)
{
goto Unmapped;
}
if (lvl1 == null)
{
goto Unmapped;
}
position &= PageMask;
byte* ptr = lvl1[l1];
if (ptr == null)
{
goto Unmapped;
}
return ptr + position;
Unmapped:
return HandleNullPteWrite(old);
}
private byte* HandleNullPteWrite(long position)
{
long key = position >> PageBits;
MemoryAccessEventArgs e = new MemoryAccessEventArgs(position);
if (_observedPages.TryGetValue(key, out IntPtr ptr))
{
SetPtEntry(position, (byte*)ptr);
ObservedAccess?.Invoke(this, e);
return (byte*)ptr + (position & PageMask);
}
InvalidAccess?.Invoke(this, e);
throw new VmmPageFaultException(position);
}
private void SetPtEntries(long va, byte* ptr, long size)
{
long endPosition = (va + size + PageMask) & ~PageMask;
while ((ulong)va < (ulong)endPosition)
{
SetPtEntry(va, ptr);
va += PageSize;
if (ptr != null)
{
ptr += PageSize;
}
}
}
private void SetPtEntry(long position, byte* ptr)
{
if (!IsValidPosition(position))
{
throw new ArgumentOutOfRangeException(nameof(position));
}
long l0 = (position >> PtLvl0Bit) & PtLvl0Mask;
long l1 = (position >> PtLvl1Bit) & PtLvl1Mask;
if (_pageTable[l0] == null)
{
byte** lvl1 = (byte**)Marshal.AllocHGlobal(PtLvl1Size * IntPtr.Size);
for (int zl1 = 0; zl1 < PtLvl1Size; zl1++)
{
lvl1[zl1] = null;
}
Thread.MemoryBarrier();
_pageTable[l0] = lvl1;
}
_pageTable[l0][l1] = ptr;
}
public void StartObservingRegion(long position, long size)
{
long endPosition = (position + size + PageMask) & ~PageMask;
position &= ~PageMask;
while ((ulong)position < (ulong)endPosition)
{
_observedPages[position >> PageBits] = (IntPtr)Translate(position);
SetPtEntry(position, null);
position += PageSize;
}
}
public void StopObservingRegion(long position, long size)
{
long endPosition = (position + size + PageMask) & ~PageMask;
while (position < endPosition)
{
lock (_observedPages)
{
if (_observedPages.TryRemove(position >> PageBits, out IntPtr ptr))
{
SetPtEntry(position, (byte*)ptr);
}
}
position += PageSize;
}
}
public bool TryGetHostAddress(long position, long size, out IntPtr ptr)
{
if (IsContiguous(position, size))
{
ptr = (IntPtr)Translate(position);
return true;
}
ptr = IntPtr.Zero;
return false;
}
private bool IsContiguous(long position, long size)
{
long endPos = position + size;
position &= ~PageMask;
long expectedPa = GetPhysicalAddress(position);
while ((ulong)position < (ulong)endPos)
{
long pa = GetPhysicalAddress(position);
if (pa != expectedPa)
{
return false;
}
position += PageSize;
expectedPa += PageSize;
}
return true;
}
public bool IsValidPosition(long position)
{
return position >> (PtLvl0Bits + PtLvl1Bits + PageBits) == 0;
}
public void Dispose()
{
Dispose(true);
@ -892,24 +976,36 @@ Unmapped:
protected virtual void Dispose(bool disposing)
{
if (_pageTable == null)
IntPtr ptr = Interlocked.Exchange(ref _pageTable, IntPtr.Zero);
if (ptr != IntPtr.Zero)
{
FreePageTableEntry(ptr, PageBits);
}
}
private void FreePageTableEntry(IntPtr ptr, int levelBitEnd)
{
levelBitEnd += PtLevelBits;
if (levelBitEnd >= AddressSpaceBits)
{
Free(ptr);
return;
}
for (int l0 = 0; l0 < PtLvl0Size; l0++)
for (int index = 0; index < PtLevelSize; index++)
{
if (_pageTable[l0] != null)
{
Marshal.FreeHGlobal((IntPtr)_pageTable[l0]);
}
IntPtr ptePtr = ((IntPtr*)ptr)[index];
_pageTable[l0] = null;
if (ptePtr != IntPtr.Zero)
{
FreePageTableEntry(ptePtr, levelBitEnd);
}
}
Marshal.FreeHGlobal((IntPtr)_pageTable);
_pageTable = null;
Free(ptr);
}
}
}

132
Translation/ILEmitterCtx.cs
View file

@ -1,5 +1,6 @@
using ChocolArm64.Decoders;
using ChocolArm64.Instructions;
using ChocolArm64.Memory;
using ChocolArm64.State;
using System;
using System.Collections.Generic;
@ -10,6 +11,8 @@ namespace ChocolArm64.Translation
{
class ILEmitterCtx
{
public MemoryManager Memory { get; }
private TranslatorCache _cache;
private TranslatorQueue _queue;
@ -43,19 +46,34 @@ namespace ChocolArm64.Translation
//values needed by some functions, since IL doesn't have a swap instruction.
//You can use any value here as long it doesn't conflict with the indices
//for the other registers. Any value >= 64 or < 0 will do.
private const int IntTmpIndex = -1;
private const int RorTmpIndex = -2;
private const int CmpOptTmp1Index = -3;
private const int CmpOptTmp2Index = -4;
private const int VecTmp1Index = -5;
private const int VecTmp2Index = -6;
private const int IntTmp2Index = -7;
private const int ReservedLocalsCount = 64;
public ILEmitterCtx(TranslatorCache cache, TranslatorQueue queue, TranslationTier tier, Block graph)
private const int RorTmpIndex = ReservedLocalsCount + 0;
private const int CmpOptTmp1Index = ReservedLocalsCount + 1;
private const int CmpOptTmp2Index = ReservedLocalsCount + 2;
private const int IntGpTmp1Index = ReservedLocalsCount + 3;
private const int IntGpTmp2Index = ReservedLocalsCount + 4;
private const int UserIntTempStart = ReservedLocalsCount + 5;
//Vectors are part of another "set" of locals.
private const int VecGpTmp1Index = ReservedLocalsCount + 0;
private const int VecGpTmp2Index = ReservedLocalsCount + 1;
private const int UserVecTempStart = ReservedLocalsCount + 2;
private static int _userIntTempCount;
private static int _userVecTempCount;
public ILEmitterCtx(
MemoryManager memory,
TranslatorCache cache,
TranslatorQueue queue,
TranslationTier tier,
Block graph)
{
_cache = cache ?? throw new ArgumentNullException(nameof(cache));
_queue = queue ?? throw new ArgumentNullException(nameof(queue));
_currBlock = graph ?? throw new ArgumentNullException(nameof(graph));
Memory = memory ?? throw new ArgumentNullException(nameof(memory));
_cache = cache ?? throw new ArgumentNullException(nameof(cache));
_queue = queue ?? throw new ArgumentNullException(nameof(queue));
_currBlock = graph ?? throw new ArgumentNullException(nameof(graph));
Tier = tier;
@ -76,6 +94,16 @@ namespace ChocolArm64.Translation
AdvanceOpCode();
}
public static int GetIntTempIndex()
{
return UserIntTempStart + _userIntTempCount++;
}
public static int GetVecTempIndex()
{
return UserVecTempStart + _userVecTempCount++;
}
public ILBlock[] GetILBlocks()
{
EmitAllOpCodes();
@ -145,7 +173,7 @@ namespace ChocolArm64.Translation
_ilBlock.Add(new ILBarrier());
}
private Condition GetInverseCond(Condition cond)
private static Condition GetInverseCond(Condition cond)
{
//Bit 0 of all conditions is basically a negation bit, so
//inverting this bit has the effect of inverting the condition.
@ -560,17 +588,17 @@ namespace ChocolArm64.Translation
_ilBlock.Add(new ILOpCodeStoreState(_ilBlock));
}
public void EmitLdtmp() => EmitLdint(IntTmpIndex);
public void EmitSttmp() => EmitStint(IntTmpIndex);
public void EmitLdtmp() => EmitLdint(IntGpTmp1Index);
public void EmitSttmp() => EmitStint(IntGpTmp1Index);
public void EmitLdtmp2() => EmitLdint(IntTmp2Index);
public void EmitSttmp2() => EmitStint(IntTmp2Index);
public void EmitLdtmp2() => EmitLdint(IntGpTmp2Index);
public void EmitSttmp2() => EmitStint(IntGpTmp2Index);
public void EmitLdvectmp() => EmitLdvec(VecTmp1Index);
public void EmitStvectmp() => EmitStvec(VecTmp1Index);
public void EmitLdvectmp() => EmitLdvec(VecGpTmp1Index);
public void EmitStvectmp() => EmitStvec(VecGpTmp1Index);
public void EmitLdvectmp2() => EmitLdvec(VecTmp2Index);
public void EmitStvectmp2() => EmitStvec(VecTmp2Index);
public void EmitLdvectmp2() => EmitLdvec(VecGpTmp2Index);
public void EmitStvectmp2() => EmitStvec(VecGpTmp2Index);
public void EmitLdint(int index) => Ldloc(index, IoType.Int);
public void EmitStint(int index) => Stloc(index, IoType.Int);
@ -611,62 +639,12 @@ namespace ChocolArm64.Translation
public void EmitCallPropGet(Type objType, string propName)
{
if (objType == null)
{
throw new ArgumentNullException(nameof(objType));
}
if (propName == null)
{
throw new ArgumentNullException(nameof(propName));
}
EmitCall(objType.GetMethod($"get_{propName}"));
EmitCall(objType, $"get_{propName}");
}
public void EmitCallPropSet(Type objType, string propName)
{
if (objType == null)
{
throw new ArgumentNullException(nameof(objType));
}
if (propName == null)
{
throw new ArgumentNullException(nameof(propName));
}
EmitCall(objType.GetMethod($"set_{propName}"));
}
public void EmitCallPrivatePropGet(Type objType, string propName)
{
if (objType == null)
{
throw new ArgumentNullException(nameof(objType));
}
if (propName == null)
{
throw new ArgumentNullException(nameof(propName));
}
EmitPrivateCall(objType, $"get_{propName}");
}
public void EmitCallPrivatePropSet(Type objType, string propName)
{
if (objType == null)
{
throw new ArgumentNullException(nameof(objType));
}
if (propName == null)
{
throw new ArgumentNullException(nameof(propName));
}
EmitPrivateCall(objType, $"set_{propName}");
EmitCall(objType, $"set_{propName}");
}
public void EmitCall(Type objType, string mthdName)
@ -684,6 +662,16 @@ namespace ChocolArm64.Translation
EmitCall(objType.GetMethod(mthdName));
}
public void EmitCallPrivatePropGet(Type objType, string propName)
{
EmitPrivateCall(objType, $"get_{propName}");
}
public void EmitCallPrivatePropSet(Type objType, string propName)
{
EmitPrivateCall(objType, $"set_{propName}");
}
public void EmitPrivateCall(Type objType, string mthdName)
{
if (objType == null)

4
Translation/Translator.cs
View file

@ -138,7 +138,7 @@ namespace ChocolArm64.Translation
{
Block block = Decoder.DecodeBasicBlock(_memory, position, mode);
ILEmitterCtx context = new ILEmitterCtx(_cache, _queue, TranslationTier.Tier0, block);
ILEmitterCtx context = new ILEmitterCtx(_memory, _cache, _queue, TranslationTier.Tier0, block);
string subName = GetSubroutineName(position);
@ -153,7 +153,7 @@ namespace ChocolArm64.Translation
{
Block graph = Decoder.DecodeSubroutine(_memory, position, mode);
ILEmitterCtx context = new ILEmitterCtx(_cache, _queue, TranslationTier.Tier1, graph);
ILEmitterCtx context = new ILEmitterCtx(_memory, _cache, _queue, TranslationTier.Tier1, graph);
ILBlock[] ilBlocks = context.GetILBlocks();