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obfuz
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fix: 修复SplitBasicBlockGroup计算带filter的异常handler时，先计算整个异常块再计算filter和handler块的顺序bug，正确方式为先计算filter和handler，再计算整体

pull/30/head
walon 2025-10-16 22:28:05 +08:00
parent b582c1f24b
commit c9ea564544
1 changed files with 9 additions and 8 deletions
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17
Editor/ObfusPasses/ControlFlowObfus/MethodControlFlowCalculator.cs
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@ -774,13 +774,13 @@ namespace Obfuz.ObfusPasses.ControlFlowObfus
private class ExceptionHandlerWithFilterGroup : BlockGroup
{
public readonly ExceptionHandler exceptionHandler;
//public readonly ExceptionFilterGroup filterGroup;
//public readonly ExceptionHandlerGroup handlerGroup;
public ExceptionHandlerWithFilterGroup(ExceptionHandler exceptionHandler, List<Instruction> filterInstructions, List<Instruction> handlerInstructions, List<Instruction> allInstructions, Dictionary<Instruction, BlockGroup> inst2group) : base(allInstructions, inst2group)
public readonly ExceptionFilterGroup filterGroup;
public readonly ExceptionHandlerGroup handlerGroup;
public ExceptionHandlerWithFilterGroup(ExceptionHandler exceptionHandler, ExceptionFilterGroup filterGroup, ExceptionHandlerGroup handlerGroup, List<Instruction> instructions, Dictionary<Instruction, BlockGroup> inst2group) : base(instructions, inst2group)
{
this.exceptionHandler = exceptionHandler;
var filterGroup = new ExceptionFilterGroup(exceptionHandler, filterInstructions, inst2group);
var handlerGroup = new ExceptionHandlerGroup(exceptionHandler, handlerInstructions, inst2group);
this.filterGroup = filterGroup;
this.handlerGroup = handlerGroup;
}
}
@ -833,9 +833,10 @@ namespace Obfuz.ObfusPasses.ControlFlowObfus
int filterEndIndex = ex.HandlerStart != null ? inst2Index[ex.HandlerStart] : inst2Index.Count;
int handlerStartIndex = filterEndIndex;
int handlerEndIndex = ex.HandlerEnd != null ? inst2Index[ex.HandlerEnd] : inst2Index.Count;
var filterHandlerGroup = new ExceptionHandlerWithFilterGroup(ex,
instructions.GetRange(filterStartIndex, filterEndIndex - filterStartIndex),
instructions.GetRange(handlerStartIndex, handlerEndIndex - handlerStartIndex),
var filterGroup = new ExceptionFilterGroup(ex, instructions.GetRange(filterStartIndex, filterEndIndex - filterStartIndex), inst2blockGroup);
var handlerGroup = new ExceptionHandlerGroup(ex, instructions.GetRange(handlerStartIndex, handlerEndIndex - handlerStartIndex), inst2blockGroup);
var filterHandlerGroup = new ExceptionHandlerWithFilterGroup(ex, filterGroup, handlerGroup,
instructions.GetRange(filterStartIndex, handlerEndIndex - filterStartIndex), inst2blockGroup);
}
else