use of net.runelite.asm.attributes.code.instructions.InvokeStatic in project runelite by runelite.
the class Frame method initialize.
public void initialize(InstructionContext ctx) {
// initialize frame from invoking context
assert ctx.getInstruction() instanceof InvokeInstruction;
// assert ctx.getInstruction() instanceof InvokeStatic == this.method.isStatic();
if (this.getMethod().isStatic()) {
this.nonStatic = ctx.getFrame().nonStatic;
}
// initialize LVT. the last argument is popped first, and is at arguments[0]
List<StackContext> pops = ctx.getPops();
// reverse the list so first argument is at index 0
pops = Lists.reverse(new ArrayList<>(pops));
int lvtOffset = 0;
if (!(ctx.getInstruction() instanceof InvokeStatic)) {
// object
StackContext s = pops.remove(0);
// but don't set as a parameter
if (!method.isStatic()) {
VariableContext vctx = new VariableContext(ctx, s);
vctx.markParameter();
variables.set(lvtOffset++, vctx);
}
}
for (int i = 0; i < method.getDescriptor().size(); ++i) {
StackContext argument = pops.remove(0);
// Set variable type to the methods, not the objects on the stack.
VariableContext vctx = new VariableContext(ctx, method.getDescriptor().getTypeOfArg(i), argument.getValue());
vctx.markParameter();
variables.set(lvtOffset, vctx);
lvtOffset += method.getDescriptor().getTypeOfArg(i).getSize();
}
assert pops.isEmpty();
Code code = method.getCode();
cur = code.getInstructions().getInstructions().get(0);
}
use of net.runelite.asm.attributes.code.instructions.InvokeStatic in project runelite by runelite.
the class StaticStep method stepInto.
public static Frame stepInto(Frame f, InstructionContext i) {
Execution e = f.getExecution();
assert i.getInstruction() instanceof InvokeStatic;
InvokeStatic is = (InvokeStatic) i.getInstruction();
List<Method> methods = is.getMethods();
assert methods.size() == 1;
Method to = methods.get(0);
if (isLoop(f)) {
return null;
}
if (e.hasInvoked(i, to)) {
return null;
}
if (to.isNative()) {
return null;
}
Frame f2 = new Frame(e, to);
f2.initialize(i);
f2.setOrder(f.getOrder());
if (e.frames.contains(f)) {
int idx = e.frames.indexOf(f);
// old frame goes away
e.frames.remove(f);
e.frames.add(idx, f2);
} else {
e.frames.add(f);
}
// only mapping executor has other
if (f.other != null) {
assert f.other.other == f;
// even though theyre in different methods
f2.other = f.other;
f.other.other = f2;
f.other = null;
}
// where to go when we're done
f2.returnTo = new Frame(f);
// assert f.getInstructions().isEmpty() == false; // this is wrong?
// also wrong?
f2.returnTo.getInstructions().addAll(f.getInstructions());
logger.trace("Stepping into {} from {}", f2, f);
return f2;
}
use of net.runelite.asm.attributes.code.instructions.InvokeStatic in project runelite by runelite.
the class MixinInjector method injectMethods.
private void injectMethods(ClassFile mixinCf, ClassFile cf, Map<net.runelite.asm.pool.Field, Field> shadowFields) throws InjectionException {
// Keeps mappings between methods annotated with @Copy -> the copied method within the vanilla pack
Map<net.runelite.asm.pool.Method, CopiedMethod> copiedMethods = new HashMap<>();
// Handle the copy mixins first, so all other mixins know of the copies
for (Method method : mixinCf.getMethods()) {
Annotation copyAnnotation = method.getAnnotations().find(COPY);
if (copyAnnotation == null) {
continue;
}
String deobMethodName = (String) copyAnnotation.getElement().getValue();
ClassFile deobCf = inject.toDeobClass(cf);
Method deobMethod = findDeobMethod(deobCf, deobMethodName, method.getDescriptor());
if (deobMethod == null) {
throw new InjectionException("Failed to find the deob method " + deobMethodName + " for mixin " + mixinCf);
}
if (method.isStatic() != deobMethod.isStatic()) {
throw new InjectionException("Mixin method " + method + " should be " + (deobMethod.isStatic() ? "static" : "non-static"));
}
// Find the vanilla class where the method to copy is in
String obClassName = DeobAnnotations.getObfuscatedName(deobMethod.getClassFile().getAnnotations());
ClassFile obCf = inject.getVanilla().findClass(obClassName);
assert obCf != null : "unable to find vanilla class from obfuscated name " + obClassName;
String obMethodName = DeobAnnotations.getObfuscatedName(deobMethod.getAnnotations());
Signature obMethodSignature = DeobAnnotations.getObfuscatedSignature(deobMethod);
if (obMethodName == null) {
obMethodName = deobMethod.getName();
}
if (obMethodSignature == null) {
obMethodSignature = deobMethod.getDescriptor();
}
Method obMethod = obCf.findMethod(obMethodName, obMethodSignature);
if (obMethod == null) {
throw new InjectionException("Failed to find the ob method " + obMethodName + " for mixin " + mixinCf);
}
if (method.getDescriptor().size() > obMethod.getDescriptor().size()) {
throw new InjectionException("Mixin methods cannot have more parameters than their corresponding ob method");
}
Method copy = new Method(cf, "copy$" + deobMethodName, obMethodSignature);
moveCode(copy, obMethod.getCode());
copy.setAccessFlags(obMethod.getAccessFlags());
copy.setPublic();
copy.getExceptions().getExceptions().addAll(obMethod.getExceptions().getExceptions());
copy.getAnnotations().getAnnotations().addAll(obMethod.getAnnotations().getAnnotations());
cf.addMethod(copy);
/*
If the desc for the mixin method and the desc for the ob method
are the same in length, assume that the mixin method is taking
care of the garbage parameter itself.
*/
boolean hasGarbageValue = method.getDescriptor().size() != obMethod.getDescriptor().size() && deobMethod.getDescriptor().size() < obMethodSignature.size();
copiedMethods.put(method.getPoolMethod(), new CopiedMethod(copy, hasGarbageValue));
logger.debug("Injected copy of {} to {}", obMethod, copy);
}
// Handle the rest of the mixin types
for (Method method : mixinCf.getMethods()) {
boolean isClinit = "<clinit>".equals(method.getName());
boolean isInit = "<init>".equals(method.getName());
boolean hasInject = method.getAnnotations().find(INJECT) != null;
// You can't annotate clinit, so its always injected
if ((hasInject && isInit) || isClinit) {
if (!"()V".equals(method.getDescriptor().toString())) {
throw new InjectionException("Injected constructors cannot have arguments");
}
Method[] originalMethods = cf.getMethods().stream().filter(n -> n.getName().equals(method.getName())).toArray(Method[]::new);
// If there isn't a <clinit> already just inject ours, otherwise rename it
// This is always true for <init>
String name = method.getName();
if (originalMethods.length > 0) {
name = "rl$$" + (isInit ? "init" : "clinit");
}
String numberlessName = name;
for (int i = 1; cf.findMethod(name, method.getDescriptor()) != null; i++) {
name = numberlessName + i;
}
Method copy = new Method(cf, name, method.getDescriptor());
moveCode(copy, method.getCode());
copy.setAccessFlags(method.getAccessFlags());
copy.setPrivate();
assert method.getExceptions().getExceptions().isEmpty();
// Remove the call to the superclass's ctor
if (isInit) {
Instructions instructions = copy.getCode().getInstructions();
ListIterator<Instruction> listIter = instructions.getInstructions().listIterator();
for (; listIter.hasNext(); ) {
Instruction instr = listIter.next();
if (instr instanceof InvokeSpecial) {
InvokeSpecial invoke = (InvokeSpecial) instr;
assert invoke.getMethod().getName().equals("<init>");
listIter.remove();
int pops = invoke.getMethod().getType().getArguments().size() + 1;
for (int i = 0; i < pops; i++) {
listIter.add(new Pop(instructions));
}
break;
}
}
}
setOwnersToTargetClass(mixinCf, cf, copy, shadowFields, copiedMethods);
cf.addMethod(copy);
// Call our method at the return point of the matching method(s)
for (Method om : originalMethods) {
Instructions instructions = om.getCode().getInstructions();
ListIterator<Instruction> listIter = instructions.getInstructions().listIterator();
for (; listIter.hasNext(); ) {
Instruction instr = listIter.next();
if (instr instanceof ReturnInstruction) {
listIter.previous();
if (isInit) {
listIter.add(new ALoad(instructions, 0));
listIter.add(new InvokeSpecial(instructions, copy.getPoolMethod()));
} else if (isClinit) {
listIter.add(new InvokeStatic(instructions, copy.getPoolMethod()));
}
listIter.next();
}
}
}
logger.debug("Injected mixin method {} to {}", copy, cf);
} else if (hasInject) {
// Make sure the method doesn't invoke copied methods
for (Instruction i : method.getCode().getInstructions().getInstructions()) {
if (i instanceof InvokeInstruction) {
InvokeInstruction ii = (InvokeInstruction) i;
if (copiedMethods.containsKey(ii.getMethod())) {
throw new InjectionException("Injected methods cannot invoke copied methods");
}
}
}
Method copy = new Method(cf, method.getName(), method.getDescriptor());
moveCode(copy, method.getCode());
copy.setAccessFlags(method.getAccessFlags());
copy.setPublic();
assert method.getExceptions().getExceptions().isEmpty();
setOwnersToTargetClass(mixinCf, cf, copy, shadowFields, copiedMethods);
cf.addMethod(copy);
logger.debug("Injected mixin method {} to {}", copy, cf);
} else if (method.getAnnotations().find(REPLACE) != null) {
Annotation replaceAnnotation = method.getAnnotations().find(REPLACE);
String deobMethodName = (String) replaceAnnotation.getElement().getValue();
ClassFile deobCf = inject.toDeobClass(cf);
Method deobMethod = findDeobMethod(deobCf, deobMethodName, method.getDescriptor());
if (deobMethod == null) {
throw new InjectionException("Failed to find the deob method " + deobMethodName + " for mixin " + mixinCf);
}
if (method.isStatic() != deobMethod.isStatic()) {
throw new InjectionException("Mixin method " + method + " should be " + (deobMethod.isStatic() ? "static" : "non-static"));
}
String obMethodName = DeobAnnotations.getObfuscatedName(deobMethod.getAnnotations());
Signature obMethodSignature = DeobAnnotations.getObfuscatedSignature(deobMethod);
// Deob signature is the same as ob signature
if (obMethodName == null) {
obMethodName = deobMethod.getName();
}
if (obMethodSignature == null) {
obMethodSignature = deobMethod.getDescriptor();
}
// Find the vanilla class where the method to copy is in
String obClassName = DeobAnnotations.getObfuscatedName(deobMethod.getClassFile().getAnnotations());
ClassFile obCf = inject.getVanilla().findClass(obClassName);
Method obMethod = obCf.findMethod(obMethodName, obMethodSignature);
assert obMethod != null : "obfuscated method " + obMethodName + obMethodSignature + " does not exist";
if (method.getDescriptor().size() > obMethod.getDescriptor().size()) {
throw new InjectionException("Mixin methods cannot have more parameters than their corresponding ob method");
}
Type returnType = method.getDescriptor().getReturnValue();
Type deobReturnType = inject.apiTypeToDeobfuscatedType(returnType);
if (!returnType.equals(deobReturnType)) {
ClassFile deobReturnTypeClassFile = inject.getDeobfuscated().findClass(deobReturnType.getInternalName());
if (deobReturnTypeClassFile != null) {
ClassFile obReturnTypeClass = inject.toObClass(deobReturnTypeClassFile);
Instructions instructions = method.getCode().getInstructions();
ListIterator<Instruction> listIter = instructions.getInstructions().listIterator();
for (; listIter.hasNext(); ) {
Instruction instr = listIter.next();
if (instr instanceof ReturnInstruction) {
listIter.previous();
CheckCast checkCast = new CheckCast(instructions);
checkCast.setType(new Type(obReturnTypeClass.getName()));
listIter.add(checkCast);
listIter.next();
}
}
}
}
moveCode(obMethod, method.getCode());
boolean hasGarbageValue = method.getDescriptor().size() != obMethod.getDescriptor().size() && deobMethod.getDescriptor().size() < obMethodSignature.size();
if (hasGarbageValue) {
int garbageIndex = obMethod.isStatic() ? obMethod.getDescriptor().size() - 1 : obMethod.getDescriptor().size();
/*
If the mixin method doesn't have the garbage parameter,
the compiler will have produced code that uses the garbage
parameter's local variable index for other things,
so we'll have to add 1 to all loads/stores to indices
that are >= garbageIndex.
*/
shiftLocalIndices(obMethod.getCode().getInstructions(), garbageIndex);
}
setOwnersToTargetClass(mixinCf, cf, obMethod, shadowFields, copiedMethods);
logger.debug("Replaced method {} with mixin method {}", obMethod, method);
}
}
}
use of net.runelite.asm.attributes.code.instructions.InvokeStatic in project runelite by runelite.
the class InjectHookMethodTest method testProcess.
@Test
public void testProcess() throws IOException, InjectionException {
InputStream in = getClass().getResourceAsStream("Actor.class");
ClassFile cf = ClassUtil.loadClass(in);
cf.setName("Actor");
cf.findMethod("bar").setDescriptor(new Signature("(LActor;I)I"));
ClassGroup deobfuscated = new ClassGroup();
deobfuscated.addClass(cf);
in = getClass().getResourceAsStream("Obfuscated.class");
ClassFile obcf = ClassUtil.loadClass(in);
obcf.setName("Obfuscated");
obcf.findMethod("foo").setDescriptor(new Signature("(LObfuscated;I)I"));
ClassGroup obfuscated = new ClassGroup();
obfuscated.addClass(obcf);
Method method = cf.findMethod("bar");
assert method != null;
Inject inject = new Inject(deobfuscated, obfuscated);
InjectHookMethod injectHookMethod = new InjectHookMethod(inject);
injectHookMethod.process(method);
method = obcf.findMethod("foo");
assert method != null;
Code code = method.getCode();
List<InvokeStatic> invokeIns = code.getInstructions().getInstructions().stream().filter(i -> i instanceof InvokeStatic).map(i -> (InvokeStatic) i).filter(i -> i.getMethod().getClazz().getName().equals(HOOKS)).collect(Collectors.toList());
assertTrue(!invokeIns.isEmpty());
assertEquals(2, invokeIns.size());
InvokeStatic invokeStatic = invokeIns.get(0);
Signature signature = invokeStatic.getMethod().getType();
// this + patamers
assertEquals(3, signature.size());
Type arg = signature.getTypeOfArg(1);
assertEquals(RL_API_PACKAGE_BASE.replace('.', '/') + "Actor", arg.getInternalName());
}
use of net.runelite.asm.attributes.code.instructions.InvokeStatic in project runelite by runelite.
the class InjectHook method injectCallback.
private void injectCallback(Instructions ins, int idx, HookInfo hookInfo, StackContext index, StackContext objectPusher) throws InjectionException {
if (hookInfo.staticMethod == false) {
if (objectPusher == null) {
throw new InjectionException("Null object pusher");
}
idx = recursivelyPush(ins, idx, objectPusher);
if (index != null) {
idx = recursivelyPush(ins, idx, index);
} else {
ins.getInstructions().add(idx++, new LDC(ins, -1));
}
InvokeVirtual invoke = new InvokeVirtual(ins, new net.runelite.asm.pool.Method(new net.runelite.asm.pool.Class(hookInfo.clazz), hookInfo.method, new Signature(HOOK_METHOD_SIGNATURE)));
ins.getInstructions().add(idx++, invoke);
} else {
if (index != null) {
idx = recursivelyPush(ins, idx, index);
} else {
ins.getInstructions().add(idx++, new LDC(ins, -1));
}
InvokeStatic invoke = new InvokeStatic(ins, new net.runelite.asm.pool.Method(new net.runelite.asm.pool.Class(hookInfo.clazz), hookInfo.method, new Signature(HOOK_METHOD_SIGNATURE)));
ins.getInstructions().add(idx++, invoke);
}
}
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