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BasicBlockCollection新增参数决定是否计算inLoop

1.x
walon 2025-06-15 10:55:09 +08:00
parent 7ff5c97140
commit 830d61cc48
2 changed files with 11 additions and 2 deletions
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9
Editor/Emit/BasicBlockCollection.cs
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@ -38,13 +38,20 @@ namespace Obfuz.Emit
public IList<BasicBlock> Blocks => _blocks; public IList<BasicBlock> Blocks => _blocks;
public BasicBlockCollection(MethodDef method) public BasicBlockCollection(MethodDef method, bool computeInLoop)
{ {
_method = method; _method = method;
HashSet<Instruction> splitPoints = BuildSplitPoint(method); HashSet<Instruction> splitPoints = BuildSplitPoint(method);
BuildBasicBlocks(method, splitPoints); BuildBasicBlocks(method, splitPoints);
BuildInOutGraph(method); BuildInOutGraph(method);
if (computeInLoop)
{
ComputeBlocksInLoop();
}
}
public void ComputeBlocksInLoop()
{
var loopBlocks = FindLoopBlocks(_blocks); var loopBlocks = FindLoopBlocks(_blocks);
foreach (var block in loopBlocks) foreach (var block in loopBlocks)
{ {

4
Editor/ObfusPasses/BasicBlockObfuscationPassBase.cs
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@ -10,6 +10,8 @@ namespace Obfuz.ObfusPasses
{ {
protected abstract bool NeedObfuscateMethod(MethodDef method); protected abstract bool NeedObfuscateMethod(MethodDef method);
protected virtual bool ComputeBlockInLoop => true;
public override void Process() public override void Process()
{ {
var ctx = ObfuscationPassContext.Current; var ctx = ObfuscationPassContext.Current;
@ -48,7 +50,7 @@ namespace Obfuz.ObfusPasses
private void ObfuscateData(MethodDef method) private void ObfuscateData(MethodDef method)
{ {
BasicBlockCollection bbc = new BasicBlockCollection(method); BasicBlockCollection bbc = new BasicBlockCollection(method, ComputeBlockInLoop);
IList<Instruction> instructions = method.Body.Instructions; IList<Instruction> instructions = method.Body.Instructions;