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Allow to enable/disable memory checks even on release mode through the flag, return error for invalid addresses on SvcMap*Memory svcs, do not return error on SvcQueryMemory (instead, return reserved for the end of the address space), other minor tweaks

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This commit is contained in:
gdkchan 2018-03-10 20:39:16 -03:00
parent f43e430f6c
commit d986ef7e86
3 changed files with 257 additions and 66 deletions
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2
AOptimizations.cs
View file

@ -1,4 +1,4 @@
public static class AOptimizations
{
public static bool EnableMemoryChecks = false;
public static bool DisableMemoryChecks = false;
}

86
Instruction/AInstEmitMemoryHelper.cs
View file

@ -45,21 +45,46 @@ namespace ChocolArm64.Instruction
{
switch (Size)
{
case 0: Name = nameof(AMemory.ReadVector8); break;
case 1: Name = nameof(AMemory.ReadVector16); break;
case 2: Name = nameof(AMemory.ReadVector32); break;
case 3: Name = nameof(AMemory.ReadVector64); break;
case 4: Name = nameof(AMemory.ReadVector128); break;
case 0: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadVector8Unchecked)
: nameof(AMemory.ReadVector8); break;
case 1: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadVector16Unchecked)
: nameof(AMemory.ReadVector16); break;
case 2: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadVector32Unchecked)
: nameof(AMemory.ReadVector32); break;
case 3: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadVector64Unchecked)
: nameof(AMemory.ReadVector64); break;
case 4: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadVector128Unchecked)
: nameof(AMemory.ReadVector128); break;
}
}
else
{
switch (Size)
{
case 0: Name = nameof(AMemory.ReadByte); break;
case 1: Name = nameof(AMemory.ReadUInt16); break;
case 2: Name = nameof(AMemory.ReadUInt32); break;
case 3: Name = nameof(AMemory.ReadUInt64); break;
case 0: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadByteUnchecked)
: nameof(AMemory.ReadByte); break;
case 1: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadUInt16Unchecked)
: nameof(AMemory.ReadUInt16); break;
case 2: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadUInt32Unchecked)
: nameof(AMemory.ReadUInt32); break;
case 3: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.ReadUInt64Unchecked)
: nameof(AMemory.ReadUInt64); break;
}
}
@ -107,21 +132,46 @@ namespace ChocolArm64.Instruction
{
switch (Size)
{
case 0: Name = nameof(AMemory.WriteVector8); break;
case 1: Name = nameof(AMemory.WriteVector16); break;
case 2: Name = nameof(AMemory.WriteVector32); break;
case 3: Name = nameof(AMemory.WriteVector64); break;
case 4: Name = nameof(AMemory.WriteVector128); break;
case 0: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteVector8Unchecked)
: nameof(AMemory.WriteVector8); break;
case 1: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteVector16Unchecked)
: nameof(AMemory.WriteVector16); break;
case 2: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteVector32Unchecked)
: nameof(AMemory.WriteVector32); break;
case 3: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteVector64Unchecked)
: nameof(AMemory.WriteVector64); break;
case 4: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteVector128Unchecked)
: nameof(AMemory.WriteVector128); break;
}
}
else
{
switch (Size)
{
case 0: Name = nameof(AMemory.WriteByte); break;
case 1: Name = nameof(AMemory.WriteUInt16); break;
case 2: Name = nameof(AMemory.WriteUInt32); break;
case 3: Name = nameof(AMemory.WriteUInt64); break;
case 0: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteByteUnchecked)
: nameof(AMemory.WriteByte); break;
case 1: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteUInt16Unchecked)
: nameof(AMemory.WriteUInt16); break;
case 2: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteUInt32Unchecked)
: nameof(AMemory.WriteUInt32); break;
case 3: Name = AOptimizations.DisableMemoryChecks
? nameof(AMemory.WriteUInt64Unchecked)
: nameof(AMemory.WriteUInt64); break;
}
}

235
Memory/AMemory.cs
View file

@ -2,7 +2,6 @@ using ChocolArm64.Exceptions;
using ChocolArm64.State;
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace ChocolArm64.Memory
@ -139,71 +138,77 @@ namespace ChocolArm64.Memory
}
}
public sbyte ReadSByte(long Position) => (sbyte)ReadByte (Position);
public short ReadInt16(long Position) => (short)ReadUInt16(Position);
public int ReadInt32(long Position) => (int)ReadUInt32(Position);
public long ReadInt64(long Position) => (long)ReadUInt64(Position);
public sbyte ReadSByte(long Position)
{
return (sbyte)ReadByte(Position);
}
public short ReadInt16(long Position)
{
return (short)ReadUInt16(Position);
}
public int ReadInt32(long Position)
{
return (int)ReadUInt32(Position);
}
public long ReadInt64(long Position)
{
return (long)ReadUInt64(Position);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public byte ReadByte(long Position)
{
EnsureAccessIsValid(Position, AMemoryPerm.Read);
return *((byte*)(RamPtr + (uint)Position));
return ReadByteUnchecked(Position);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ushort ReadUInt16(long Position)
{
EnsureAccessIsValid(Position + 0, AMemoryPerm.Read);
EnsureAccessIsValid(Position + 1, AMemoryPerm.Read);
return *((ushort*)(RamPtr + (uint)Position));
return ReadUInt16Unchecked(Position);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public uint ReadUInt32(long Position)
{
EnsureAccessIsValid(Position + 0, AMemoryPerm.Read);
EnsureAccessIsValid(Position + 3, AMemoryPerm.Read);
return *((uint*)(RamPtr + (uint)Position));
return ReadUInt32Unchecked(Position);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ulong ReadUInt64(long Position)
{
EnsureAccessIsValid(Position + 0, AMemoryPerm.Read);
EnsureAccessIsValid(Position + 7, AMemoryPerm.Read);
return *((ulong*)(RamPtr + (uint)Position));
return ReadUInt64Unchecked(Position);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public AVec ReadVector8(long Position)
{
return new AVec() { B0 = ReadByte(Position) };
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public AVec ReadVector16(long Position)
{
return new AVec() { H0 = ReadUInt16(Position) };
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public AVec ReadVector32(long Position)
{
return new AVec() { W0 = ReadUInt32(Position) };
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public AVec ReadVector64(long Position)
{
return new AVec() { X0 = ReadUInt64(Position) };
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public AVec ReadVector128(long Position)
{
return new AVec()
@ -213,93 +218,229 @@ namespace ChocolArm64.Memory
};
}
public void WriteSByte(long Position, sbyte Value) => WriteByte (Position, (byte)Value);
public void WriteInt16(long Position, short Value) => WriteUInt16(Position, (ushort)Value);
public void WriteInt32(long Position, int Value) => WriteUInt32(Position, (uint)Value);
public void WriteInt64(long Position, long Value) => WriteUInt64(Position, (ulong)Value);
public sbyte ReadSByteUnchecked(long Position)
{
return (sbyte)ReadByteUnchecked(Position);
}
public short ReadInt16Unchecked(long Position)
{
return (short)ReadUInt16Unchecked(Position);
}
public int ReadInt32Unchecked(long Position)
{
return (int)ReadUInt32Unchecked(Position);
}
public long ReadInt64Unchecked(long Position)
{
return (long)ReadUInt64Unchecked(Position);
}
public byte ReadByteUnchecked(long Position)
{
return *((byte*)(RamPtr + (uint)Position));
}
public ushort ReadUInt16Unchecked(long Position)
{
return *((ushort*)(RamPtr + (uint)Position));
}
public uint ReadUInt32Unchecked(long Position)
{
return *((uint*)(RamPtr + (uint)Position));
}
public ulong ReadUInt64Unchecked(long Position)
{
return *((ulong*)(RamPtr + (uint)Position));
}
public AVec ReadVector8Unchecked(long Position)
{
return new AVec() { B0 = ReadByteUnchecked(Position) };
}
public AVec ReadVector16Unchecked(long Position)
{
return new AVec() { H0 = ReadUInt16Unchecked(Position) };
}
public AVec ReadVector32Unchecked(long Position)
{
return new AVec() { W0 = ReadUInt32Unchecked(Position) };
}
public AVec ReadVector64Unchecked(long Position)
{
return new AVec() { X0 = ReadUInt64Unchecked(Position) };
}
public AVec ReadVector128Unchecked(long Position)
{
return new AVec()
{
X0 = ReadUInt64Unchecked(Position + 0),
X1 = ReadUInt64Unchecked(Position + 8)
};
}
public void WriteSByte(long Position, sbyte Value)
{
WriteByte(Position, (byte)Value);
}
public void WriteInt16(long Position, short Value)
{
WriteUInt16(Position, (ushort)Value);
}
public void WriteInt32(long Position, int Value)
{
WriteUInt32(Position, (uint)Value);
}
public void WriteInt64(long Position, long Value)
{
WriteUInt64(Position, (ulong)Value);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteByte(long Position, byte Value)
{
EnsureAccessIsValid(Position, AMemoryPerm.Write);
*((byte*)(RamPtr + (uint)Position)) = Value;
WriteByteUnchecked(Position, Value);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteUInt16(long Position, ushort Value)
{
EnsureAccessIsValid(Position + 0, AMemoryPerm.Write);
EnsureAccessIsValid(Position + 1, AMemoryPerm.Write);
*((ushort*)(RamPtr + (uint)Position)) = Value;
WriteUInt16Unchecked(Position, Value);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteUInt32(long Position, uint Value)
{
EnsureAccessIsValid(Position + 0, AMemoryPerm.Write);
EnsureAccessIsValid(Position + 3, AMemoryPerm.Write);
*((uint*)(RamPtr + (uint)Position)) = Value;
WriteUInt32Unchecked(Position, Value);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteUInt64(long Position, ulong Value)
{
EnsureAccessIsValid(Position + 0, AMemoryPerm.Write);
EnsureAccessIsValid(Position + 7, AMemoryPerm.Write);
*((ulong*)(RamPtr + (uint)Position)) = Value;
WriteUInt64Unchecked(Position, Value);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteVector8(long Position, AVec Value)
{
WriteByte(Position, Value.B0);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteVector16(long Position, AVec Value)
{
WriteUInt16(Position, Value.H0);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteVector32(long Position, AVec Value)
{
WriteUInt32(Position, Value.W0);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteVector64(long Position, AVec Value)
{
WriteUInt64(Position, Value.X0);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void WriteVector128(long Position, AVec Value)
{
WriteUInt64(Position + 0, Value.X0);
WriteUInt64(Position + 8, Value.X1);
}
public void WriteSByteUnchecked(long Position, sbyte Value)
{
WriteByteUnchecked(Position, (byte)Value);
}
public void WriteInt16Unchecked(long Position, short Value)
{
WriteUInt16Unchecked(Position, (ushort)Value);
}
public void WriteInt32Unchecked(long Position, int Value)
{
WriteUInt32Unchecked(Position, (uint)Value);
}
public void WriteInt64Unchecked(long Position, long Value)
{
WriteUInt64Unchecked(Position, (ulong)Value);
}
public void WriteByteUnchecked(long Position, byte Value)
{
*((byte*)(RamPtr + (uint)Position)) = Value;
}
public void WriteUInt16Unchecked(long Position, ushort Value)
{
*((ushort*)(RamPtr + (uint)Position)) = Value;
}
public void WriteUInt32Unchecked(long Position, uint Value)
{
*((uint*)(RamPtr + (uint)Position)) = Value;
}
public void WriteUInt64Unchecked(long Position, ulong Value)
{
*((ulong*)(RamPtr + (uint)Position)) = Value;
}
public void WriteVector8Unchecked(long Position, AVec Value)
{
WriteByteUnchecked(Position, Value.B0);
}
public void WriteVector16Unchecked(long Position, AVec Value)
{
WriteUInt16Unchecked(Position, Value.H0);
}
public void WriteVector32Unchecked(long Position, AVec Value)
{
WriteUInt32Unchecked(Position, Value.W0);
}
public void WriteVector64Unchecked(long Position, AVec Value)
{
WriteUInt64Unchecked(Position, Value.X0);
}
public void WriteVector128Unchecked(long Position, AVec Value)
{
WriteUInt64Unchecked(Position + 0, Value.X0);
WriteUInt64Unchecked(Position + 8, Value.X1);
}
private void EnsureAccessIsValid(long Position, AMemoryPerm Perm)
{
#if DEBUG
if (AOptimizations.EnableMemoryChecks)
if (!Manager.IsMapped(Position))
{
if (!Manager.IsMapped(Position))
{
throw new VmmPageFaultException(Position);
}
if (!Manager.HasPermission(Position, Perm))
{
throw new VmmAccessViolationException(Position, Perm);
}
throw new VmmPageFaultException(Position);
}
if (!Manager.HasPermission(Position, Perm))
{
throw new VmmAccessViolationException(Position, Perm);
}
#endif
}
public void Dispose()