Examples with SourcePosition com.android.dx.rop.code.SourcePosition used on opensource projects

Example 16 with SourcePosition

use of com.android.dx.rop.code.SourcePosition in project J2ME-Loader by nikita36078.

the class BlockAddresses method setupArrays.

/**
 * Sets up the address arrays.
 */
private void setupArrays(RopMethod method) {
    BasicBlockList blocks = method.getBlocks();
    int sz = blocks.size();
    for (int i = 0; i < sz; i++) {
        BasicBlock one = blocks.get(i);
        int label = one.getLabel();
        Insn insn = one.getInsns().get(0);
        starts[label] = new CodeAddress(insn.getPosition());
        SourcePosition pos = one.getLastInsn().getPosition();
        lasts[label] = new CodeAddress(pos);
        ends[label] = new CodeAddress(pos);
    }
}

Example 17 with SourcePosition

use of com.android.dx.rop.code.SourcePosition in project J2ME-Loader by nikita36078.

the class Ropper method addReturnBlock.

/**
 * Constructs and adds the return block, if necessary. The return
 * block merely contains an appropriate {@code return}
 * instruction.
 */
private void addReturnBlock() {
    Rop returnOp = machine.getReturnOp();
    if (returnOp == null) {
        /*
             * The method being converted never returns normally, so there's
             * no need for a return block.
             */
        return;
    }
    SourcePosition returnPos = machine.getReturnPosition();
    int label = getSpecialLabel(RETURN);
    if (isSynchronized()) {
        InsnList insns = new InsnList(1);
        Insn insn = new ThrowingInsn(Rops.MONITOR_EXIT, returnPos, RegisterSpecList.make(getSynchReg()), StdTypeList.EMPTY);
        insns.set(0, insn);
        insns.setImmutable();
        int nextLabel = getSpecialLabel(SYNCH_RETURN);
        BasicBlock bb = new BasicBlock(label, insns, IntList.makeImmutable(nextLabel), nextLabel);
        addBlock(bb, IntList.EMPTY);
        label = nextLabel;
    }
    InsnList insns = new InsnList(1);
    TypeList sourceTypes = returnOp.getSources();
    RegisterSpecList sources;
    if (sourceTypes.size() == 0) {
        sources = RegisterSpecList.EMPTY;
    } else {
        RegisterSpec source = RegisterSpec.make(0, sourceTypes.getType(0));
        sources = RegisterSpecList.make(source);
    }
    Insn insn = new PlainInsn(returnOp, returnPos, null, sources);
    insns.set(0, insn);
    insns.setImmutable();
    BasicBlock bb = new BasicBlock(label, insns, IntList.EMPTY, -1);
    addBlock(bb, IntList.EMPTY);
}

Example 18 with SourcePosition

use of com.android.dx.rop.code.SourcePosition in project J2ME-Loader by nikita36078.

the class PositionList method make.

/**
 * Extracts and returns the source position information out of an
 * instruction list.
 *
 * @param insns {@code non-null;} instructions to convert
 * @param howMuch how much information should be included; one of the
 * static constants defined by this class
 * @return {@code non-null;} the positions list
 */
public static PositionList make(DalvInsnList insns, int howMuch) {
    switch(howMuch) {
        case NONE:
            {
                return EMPTY;
            }
        case LINES:
        case IMPORTANT:
            {
                // Valid.
                break;
            }
        default:
            {
                throw new IllegalArgumentException("bogus howMuch");
            }
    }
    SourcePosition noInfo = SourcePosition.NO_INFO;
    SourcePosition cur = noInfo;
    int sz = insns.size();
    PositionList.Entry[] arr = new PositionList.Entry[sz];
    boolean lastWasTarget = false;
    int at = 0;
    for (int i = 0; i < sz; i++) {
        DalvInsn insn = insns.get(i);
        if (insn instanceof CodeAddress) {
            lastWasTarget = true;
            ;
            continue;
        }
        SourcePosition pos = insn.getPosition();
        if (pos.equals(noInfo) || pos.sameLine(cur)) {
            continue;
        }
        if ((howMuch == IMPORTANT) && !lastWasTarget) {
            continue;
        }
        cur = pos;
        arr[at] = new PositionList.Entry(insn.getAddress(), pos);
        at++;
        lastWasTarget = false;
    }
    PositionList result = new PositionList(at);
    for (int i = 0; i < at; i++) {
        result.set(i, arr[i]);
    }
    result.setImmutable();
    return result;
}