1 /* 2 * Copyright 2013, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 package org.jf.dexlib2.dexbacked.raw; 33 34 import org.jf.dexlib2.dexbacked.DexBackedDexFile; 35 import org.jf.dexlib2.dexbacked.raw.util.DexAnnotator; 36 import org.jf.dexlib2.util.AnnotatedBytes; 37 38 import javax.annotation.Nonnull; 39 import javax.annotation.Nullable; 40 41 public class ProtoIdItem { 42 public static final int ITEM_SIZE = 12; 43 44 public static final int SHORTY_OFFSET = 0; 45 public static final int RETURN_TYPE_OFFSET = 4; 46 public static final int PARAMETERS_OFFSET = 8; 47 48 @Nonnull makeAnnotator(@onnull DexAnnotator annotator, @Nonnull MapItem mapItem)49 public static SectionAnnotator makeAnnotator(@Nonnull DexAnnotator annotator, @Nonnull MapItem mapItem) { 50 return new SectionAnnotator(annotator, mapItem) { 51 @Nonnull @Override public String getItemName() { 52 return "proto_id_item"; 53 } 54 55 @Override 56 protected void annotateItem(@Nonnull AnnotatedBytes out, int itemIndex, @Nullable String itemIdentity) { 57 int shortyIndex = dexFile.readSmallUint(out.getCursor()); 58 out.annotate(4, "shorty_idx = %s", StringIdItem.getReferenceAnnotation(dexFile, shortyIndex)); 59 60 int returnTypeIndex = dexFile.readSmallUint(out.getCursor()); 61 out.annotate(4, "return_type_idx = %s", TypeIdItem.getReferenceAnnotation(dexFile, returnTypeIndex)); 62 63 int parametersOffset = dexFile.readSmallUint(out.getCursor()); 64 out.annotate(4, "parameters_off = %s", TypeListItem.getReferenceAnnotation(dexFile, parametersOffset)); 65 } 66 }; 67 } 68 69 @Nonnull 70 public static String getReferenceAnnotation(@Nonnull DexBackedDexFile dexFile, int protoIndex) { 71 try { 72 String protoString = asString(dexFile, protoIndex); 73 return String.format("proto_id_item[%d]: %s", protoIndex, protoString); 74 } catch (Exception ex) { 75 ex.printStackTrace(System.err); 76 } 77 return String.format("proto_id_item[%d]", protoIndex); 78 } 79 80 @Nonnull 81 public static String asString(@Nonnull DexBackedDexFile dexFile, int protoIndex) { 82 int offset = dexFile.getProtoIdItemOffset(protoIndex); 83 84 StringBuilder sb = new StringBuilder(); 85 sb.append("("); 86 87 int parametersOffset = dexFile.readSmallUint(offset + PARAMETERS_OFFSET); 88 sb.append(TypeListItem.asString(dexFile, parametersOffset)); 89 sb.append(")"); 90 91 int returnTypeIndex = dexFile.readSmallUint(offset + RETURN_TYPE_OFFSET); 92 String returnType = dexFile.getType(returnTypeIndex); 93 sb.append(returnType); 94 95 return sb.toString(); 96 } 97 98 public static String[] getProtos(@Nonnull RawDexFile dexFile) { 99 MapItem mapItem = dexFile.getMapItemForSection(ItemType.PROTO_ID_ITEM); 100 if (mapItem == null) { 101 return new String[0]; 102 } 103 104 int protoCount = mapItem.getItemCount(); 105 String[] ret = new String[protoCount]; 106 for (int i=0; i<protoCount; i++) { 107 ret[i] = asString(dexFile, i); 108 } 109 return ret; 110 } 111 } 112