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Implemented verification for aput-wide

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git-svn-id: https://smali.googlecode.com/svn/trunk@591 55b6fa8a-2a1e-11de-a435-ffa8d773f76a
This commit is contained in:
JesusFreke@JesusFreke.com 2010-01-25 01:55:07 +00:00
parent c849236be2
commit 55d43e36eb
1 changed files with 53 additions and 0 deletions
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53
dexlib/src/main/java/org/jf/dexlib/Code/Analysis/MethodAnalyzer.java
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@ -524,6 +524,8 @@ public class MethodAnalyzer {
return handle32BitPrimitiveAput(analyzedInstruction, RegisterType.Category.Char); return handle32BitPrimitiveAput(analyzedInstruction, RegisterType.Category.Char);
case APUT_SHORT: case APUT_SHORT:
return handle32BitPrimitiveAput(analyzedInstruction, RegisterType.Category.Short); return handle32BitPrimitiveAput(analyzedInstruction, RegisterType.Category.Short);
case APUT_WIDE:
return handleAputWide(analyzedInstruction);
} }
assert false; assert false;
@ -1591,6 +1593,57 @@ public class MethodAnalyzer {
return true; return true;
} }
private boolean handleAputWide(AnalyzedInstruction analyzedInstruction) {
ThreeRegisterInstruction instruction = (ThreeRegisterInstruction)analyzedInstruction.instruction;
RegisterType indexRegisterType = analyzedInstruction.getPreInstructionRegisterType(instruction.getRegisterC());
assert indexRegisterType != null;
if (indexRegisterType.category == RegisterType.Category.Unknown) {
return false;
}
checkRegister(indexRegisterType, Primitive32BitCategories);
RegisterType sourceRegisterType = getAndCheckWideSourcePair(analyzedInstruction, instruction.getRegisterA());
if (sourceRegisterType.category == RegisterType.Category.Unknown) {
return false;
}
RegisterType arrayRegisterType = analyzedInstruction.getPreInstructionRegisterType(instruction.getRegisterB());
assert arrayRegisterType != null;
if (indexRegisterType.category == RegisterType.Category.Unknown) {
return false;
}
if (arrayRegisterType.category != RegisterType.Category.Null) {
if (arrayRegisterType.category != RegisterType.Category.Reference) {
throw new ValidationException(String.format("Cannot use aput-wide with non-array type %s",
arrayRegisterType.category.toString()));
}
assert arrayRegisterType.type != null;
if (arrayRegisterType.type.getClassType().charAt(0) != '[') {
throw new ValidationException(String.format("Cannot use aput-wide with non-array type %s",
arrayRegisterType.type.getClassType()));
}
assert arrayRegisterType.type instanceof ClassPath.ArrayClassDef;
ClassPath.ArrayClassDef arrayClassDef = (ClassPath.ArrayClassDef)arrayRegisterType.type;
if (arrayClassDef.getArrayDimensions() != 1) {
throw new ValidationException(String.format("Cannot use aput-wide with multi-dimensional array type %s",
arrayRegisterType.type.getClassType()));
}
char arrayBaseType = arrayClassDef.getBaseElementClass().getClassType().charAt(0);
if (arrayBaseType != 'J' && arrayBaseType != 'D') {
throw new ValidationException(String.format("Cannot use aput-wide with array type %s. Incorrect " +
"array type for the instruction.", arrayRegisterType.type.getClassType()));
}
}
return true;
}
private static boolean checkArrayFieldAssignment(RegisterType.Category arrayFieldCategory, private static boolean checkArrayFieldAssignment(RegisterType.Category arrayFieldCategory,
RegisterType.Category instructionCategory) { RegisterType.Category instructionCategory) {
if (arrayFieldCategory == instructionCategory) { if (arrayFieldCategory == instructionCategory) {