Examples with Execution net.runelite.asm.execution.Execution used on opensource projects

Example 11 with Execution

use of net.runelite.asm.execution.Execution in project runelite by runelite.

the class MultiplyOneDeobfuscator method run.

@Override
public void run(ClassGroup group) {
    Execution e = new Execution(group);
    e.addMethodContextVisitor(i -> visit(i));
    e.populateInitialMethods();
    e.run();
    logger.info("Removed " + count + " 1 multiplications");
}

Example 12 with Execution

use of net.runelite.asm.execution.Execution in project runelite by runelite.

the class UnreachedCode method run.

@Override
public void run(ClassGroup group) {
    group.buildClassGraph();
    execution = new Execution(group);
    execution.populateInitialMethods();
    execution.run();
    int count = 0;
    for (ClassFile cf : group.getClasses()) {
        for (Method m : cf.getMethods()) {
            if (m.getCode() == null)
                continue;
            count += removeUnused(m);
        }
    }
    logger.info("Removed {} unused instructions", count);
}

Example 13 with Execution

use of net.runelite.asm.execution.Execution in project runelite by runelite.

the class UnusedParameters method removeParameter.

public void removeParameter(ClassGroup group, List<Method> methods, Signature signature, Execution execution, int paramIndex, int lvtIndex) {
    int slots = signature.getTypeOfArg(paramIndex).getSize();
    for (ClassFile cf : group.getClasses()) {
        for (Method m : cf.getMethods()) {
            Code c = m.getCode();
            if (c == null) {
                continue;
            }
            for (Instruction i : new ArrayList<>(c.getInstructions().getInstructions())) {
                if (!(i instanceof InvokeInstruction)) {
                    continue;
                }
                InvokeInstruction ii = (InvokeInstruction) i;
                if (!ii.getMethods().stream().anyMatch(me -> methods.contains(me))) {
                    continue;
                }
                // remove parameter from instruction
                ii.removeParameter(paramIndex);
                Collection<InstructionContext> ics = invokes.get(i);
                assert ics != null;
                if (ics != null) {
                    for (InstructionContext ins : ics) {
                        // index from top of stack of parameter. 0 is the last parameter
                        int pops = signature.size() - paramIndex - 1;
                        StackContext sctx = ins.getPops().get(pops);
                        if (sctx.getPushed().getInstruction().getInstructions() == null) {
                            continue;
                        }
                        // remove parameter from stack
                        ins.removeStack(pops);
                    }
                }
            }
        }
    }
    for (Method method : methods) {
        if (method.getCode() != null) // adjust lvt indexes to get rid of idx in the method
        {
            for (Instruction ins : method.getCode().getInstructions().getInstructions()) {
                if (ins instanceof LVTInstruction) {
                    LVTInstruction lins = (LVTInstruction) ins;
                    int i = lins.getVariableIndex();
                    // current unused variable detection just looks for no accesses
                    assert i != lvtIndex;
                    // reassign
                    if (i > lvtIndex) {
                        assert i > 0;
                        assert i >= lvtIndex + slots;
                        Instruction newIns = lins.setVariableIndex(i - slots);
                        assert ins == newIns;
                    }
                }
            }
        }
    }
    for (Method method : methods) {
        method.getDescriptor().remove(paramIndex);
    }
}

Example 14 with Execution

use of net.runelite.asm.execution.Execution in project runelite by runelite.

the class UnusedParameters method run.

@Override
public void run(ClassGroup group) {
    int i;
    int pnum = 1;
    do {
        group.buildClassGraph();
        invokes.clear();
        this.buildUnused(group);
        Execution execution = new Execution(group);
        execution.addExecutionVisitor(ictx -> visit(ictx));
        execution.populateInitialMethods();
        execution.run();
        i = this.processUnused(execution, group);
        count += i;
        break;
    } while (i > 0);
    logger.info("Removed {} unused parameters", count);
}

Example 15 with Execution

use of net.runelite.asm.execution.Execution in project runelite by runelite.

the class DupDeobfuscator method run.

@Override
public void run(ClassGroup group) {
    Execution e = new Execution(group);
    e.addMethodContextVisitor(m -> visit(m));
    e.populateInitialMethods();
    e.run();
    logger.info("Replaced {} dup instructions", count);
}