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Stub a few services, add support for generating call stacks on the CPU

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This commit is contained in:
gdkchan 2018-04-22 01:21:49 -03:00
parent 9c43b14421
commit 28f7c6decf
5 changed files with 80 additions and 10 deletions
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2
AOptimizations.cs
View file

@ -1,4 +1,6 @@
public static class AOptimizations
{
public static bool DisableMemoryChecks = false;
public static bool GenerateCallStack = true;
}

12
Instruction/AInstEmitException.cs
View file

@ -8,8 +8,6 @@ namespace ChocolArm64.Instruction
{
static partial class AInstEmit
{
private const BindingFlags Binding = BindingFlags.NonPublic | BindingFlags.Instance;
public static void Brk(AILEmitterCtx Context)
{
EmitExceptionCall(Context, nameof(AThreadState.OnBreak));
@ -30,9 +28,7 @@ namespace ChocolArm64.Instruction
Context.EmitLdc_I4(Op.Id);
MethodInfo MthdInfo = typeof(AThreadState).GetMethod(MthdName, Binding);
Context.EmitCall(MthdInfo);
Context.EmitPrivateCall(typeof(AThreadState), MthdName);
//Check if the thread should still be running, if it isn't then we return 0
//to force a return to the dispatcher and then exit the thread.
@ -73,11 +69,7 @@ namespace ChocolArm64.Instruction
Context.EmitLdc_I8(Op.Position);
Context.EmitLdc_I4(Op.RawOpCode);
string MthdName = nameof(AThreadState.OnUndefined);
MethodInfo MthdInfo = typeof(AThreadState).GetMethod(MthdName, Binding);
Context.EmitCall(MthdInfo);
Context.EmitPrivateCall(typeof(AThreadState), nameof(AThreadState.OnUndefined));
if (Context.CurrBlock.Next != null)
{

31
Instruction/AInstEmitFlow.cs
View file

@ -35,6 +35,14 @@ namespace ChocolArm64.Instruction
{
AOpCodeBImmAl Op = (AOpCodeBImmAl)Context.CurrOp;
if (AOptimizations.GenerateCallStack)
{
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitLdc_I8(Op.Imm);
Context.EmitPrivateCall(typeof(AThreadState), nameof(AThreadState.EnterMethod));
}
Context.EmitLdc_I(Op.Position + 4);
Context.EmitStint(AThreadState.LRIndex);
Context.EmitStoreState();
@ -72,6 +80,14 @@ namespace ChocolArm64.Instruction
{
AOpCodeBReg Op = (AOpCodeBReg)Context.CurrOp;
if (AOptimizations.GenerateCallStack)
{
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitLdintzr(Op.Rn);
Context.EmitPrivateCall(typeof(AThreadState), nameof(AThreadState.EnterMethod));
}
Context.EmitLdc_I(Op.Position + 4);
Context.EmitStint(AThreadState.LRIndex);
Context.EmitStoreState();
@ -84,6 +100,14 @@ namespace ChocolArm64.Instruction
{
AOpCodeBReg Op = (AOpCodeBReg)Context.CurrOp;
if (AOptimizations.GenerateCallStack)
{
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitLdintzr(Op.Rn);
Context.EmitPrivateCall(typeof(AThreadState), nameof(AThreadState.JumpMethod));
}
Context.EmitStoreState();
Context.EmitLdintzr(Op.Rn);
@ -105,6 +129,13 @@ namespace ChocolArm64.Instruction
public static void Ret(AILEmitterCtx Context)
{
if (AOptimizations.GenerateCallStack)
{
Context.EmitLdarg(ATranslatedSub.StateArgIdx);
Context.EmitPrivateCall(typeof(AThreadState), nameof(AThreadState.ExitMethod));
}
Context.EmitStoreState();
Context.EmitLdint(AThreadState.LRIndex);

30
State/AThreadState.cs
View file

@ -1,5 +1,6 @@
using ChocolArm64.Events;
using System;
using System.Collections.Generic;
using System.Diagnostics;
namespace ChocolArm64.State
@ -56,10 +57,17 @@ namespace ChocolArm64.State
public event EventHandler<AInstExceptionEventArgs> SvcCall;
public event EventHandler<AInstUndefinedEventArgs> Undefined;
private Stack<long> CallStack;
private static Stopwatch TickCounter;
private static double HostTickFreq;
public AThreadState()
{
CallStack = new Stack<long>();
}
static AThreadState()
{
HostTickFreq = 1.0 / Stopwatch.Frequency;
@ -83,5 +91,27 @@ namespace ChocolArm64.State
{
Undefined?.Invoke(this, new AInstUndefinedEventArgs(Position, RawOpCode));
}
internal void EnterMethod(long Position)
{
CallStack.Push(Position);
}
internal void ExitMethod()
{
CallStack.TryPop(out _);
}
internal void JumpMethod(long Position)
{
CallStack.TryPop(out _);
CallStack.Push(Position);
}
public long[] GetCallStack()
{
return CallStack.ToArray();
}
}
}

15
Translation/AILEmitterCtx.cs
View file

@ -461,6 +461,21 @@ namespace ChocolArm64.Translation
EmitCall(ObjType.GetMethod(MthdName));
}
public void EmitPrivateCall(Type ObjType, string MthdName)
{
if (ObjType == null)
{
throw new ArgumentNullException(nameof(ObjType));
}
if (MthdName == null)
{
throw new ArgumentNullException(nameof(MthdName));
}
EmitCall(ObjType.GetMethod(MthdName, BindingFlags.Instance | BindingFlags.NonPublic));
}
public void EmitCall(MethodInfo MthdInfo)
{
if (MthdInfo == null)