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Increment call depth on function start rather than before call

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This commit is contained in:
gdk 2022-07-10 02:20:58 -03:00 committed by Mary
parent 25f4178dda
commit 1d87e77834
5 changed files with 8 additions and 6 deletions
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7
src/ARMeilleure/Instructions/InstEmitFlowHelper.cs
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@ -224,14 +224,14 @@ namespace ARMeilleure.Instructions
if (isJump)
{
DecreaseCallDepth(context, nativeContext);
context.Tailcall(hostAddress, nativeContext);
}
else
{
OpCode op = context.CurrOp;
EmitCallDepthCheckAndIncrement(context, nativeContext, guestAddress);
Operand returnAddress = context.Call(hostAddress, OperandType.I64, nativeContext);
context.LoadFromContext();
@ -253,13 +253,14 @@ namespace ARMeilleure.Instructions
}
}
private static void EmitCallDepthCheckAndIncrement(EmitterContext context, Operand nativeContext, Operand guestAddress)
public static void EmitCallDepthCheckAndIncrement(EmitterContext context, Operand guestAddress)
{
if (!Optimizations.EnableDeepCallRecursionProtection)
{
return;
}
Operand nativeContext = context.LoadArgument(OperandType.I64, 0);
Operand callDepthAddr = context.Add(nativeContext, Const((ulong)NativeContext.GetCallDepthOffset()));
Operand currentCallDepth = context.Load(OperandType.I32, callDepthAddr);
Operand lblDoCall = Label();

2
src/ARMeilleure/State/NativeContext.cs
View file

@ -183,7 +183,7 @@ namespace ARMeilleure.State
public bool GetRunning() => GetStorage().Running != 0;
public void SetRunning(bool value) => GetStorage().Running = value ? 1 : 0;
public void ResetCallDepth() => GetStorage().CallDepth = 1;
public void ResetCallDepth() => GetStorage().CallDepth = 0;
public unsafe static int GetRegisterOffset(Register reg)
{

2
src/ARMeilleure/Translation/PTC/Ptc.cs
View file

@ -29,7 +29,7 @@ namespace ARMeilleure.Translation.PTC
private const string OuterHeaderMagicString = "PTCohd\0\0";
private const string InnerHeaderMagicString = "PTCihd\0\0";
private const uint InternalVersion = 3431; //! To be incremented manually for each change to the ARMeilleure project.
private const uint InternalVersion = 3430; //! To be incremented manually for each change to the ARMeilleure project.
private const string ActualDir = "0";
private const string BackupDir = "1";

1
src/ARMeilleure/Translation/Translator.cs
View file

@ -271,6 +271,7 @@ namespace ARMeilleure.Translation
Logger.StartPass(PassName.Translation);
InstEmitFlowHelper.EmitCallDepthCheckAndIncrement(context, Const(address));
EmitSynchronization(context);
if (blocks[0].Address != address)

2
src/ARMeilleure/Translation/TranslatorStubs.cs
View file

@ -271,7 +271,7 @@ namespace ARMeilleure.Translation
if (Optimizations.EnableDeepCallRecursionProtection)
{
// Reset the call depth counter, since this is our first guest function call.
context.Store(callDepthAddress, Const(1));
context.Store(callDepthAddress, Const(0));
}
context.Store(dispatchAddress, guestAddress);