Method readMap

dexfixer/src/com/android/dex/TableOfContents.java:123–148

(Dex.Section in)

    }

    private void readMap(Dex.Section in) throws IOException {
        int mapSize = in.readInt();
        Section previous = null;
        for (int i = 0; i < mapSize; i++) {
            short type = in.readShort();
            in.readShort(); // unused
            Section section = getSection(type);
            int size = in.readInt();
            int offset = in.readInt();

            if ((section.size != 0 && section.size != size)
                    || (section.off != -1 && section.off != offset)) {
                throw new DexException("Unexpected map value for 0x" + Integer.toHexString(type));
            }

            section.size = size;
            section.off = offset;

            if (previous != null && previous.off > section.off) {
                throw new DexException("Map is unsorted at " + previous + ", " + section);
            }

            previous = section;
        }
        Arrays.sort(sections);
    }

    public void computeSizesFromOffsets() {
        int end = dataOff + dataSize;