| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package dasm; |
| |
| import com.android.dx.dex.code.Dop; |
| import com.android.dx.dex.code.Dops; |
| import com.android.dx.dex.code.InsnFormat; |
| import com.android.dx.dex.code.form.Form10t; |
| import com.android.dx.dex.code.form.Form10x; |
| import com.android.dx.dex.code.form.Form11n; |
| import com.android.dx.dex.code.form.Form11x; |
| import com.android.dx.dex.code.form.Form12x; |
| import com.android.dx.dex.code.form.Form20t; |
| import com.android.dx.dex.code.form.Form21c; |
| import com.android.dx.dex.code.form.Form21h; |
| import com.android.dx.dex.code.form.Form21s; |
| import com.android.dx.dex.code.form.Form21t; |
| import com.android.dx.dex.code.form.Form22b; |
| import com.android.dx.dex.code.form.Form22c; |
| import com.android.dx.dex.code.form.Form22s; |
| import com.android.dx.dex.code.form.Form22t; |
| import com.android.dx.dex.code.form.Form22x; |
| import com.android.dx.dex.code.form.Form23x; |
| import com.android.dx.dex.code.form.Form30t; |
| import com.android.dx.dex.code.form.Form31c; |
| import com.android.dx.dex.code.form.Form31i; |
| import com.android.dx.dex.code.form.Form31t; |
| import com.android.dx.dex.code.form.Form32x; |
| import com.android.dx.dex.code.form.Form35c; |
| import com.android.dx.dex.code.form.Form3rc; |
| import com.android.dx.dex.code.form.Form51l; |
| import com.android.dx.io.Opcodes; |
| |
| import java.util.Hashtable; |
| |
| /** |
| * Holds information about Dalvik opcodes and its parameters. |
| */ |
| class DopInfo { |
| |
| // maps instruction name -> DopInfo object |
| static Hashtable<String, DopInfo> dopsTable; |
| |
| // information maintained about each instruction: |
| public String name; // opcode name |
| public Dop opcode; // its opcode |
| public String args; // the argument code |
| |
| public final static String ARG_REGISTER = "R"; |
| public final static String ARG_TYPE = "T"; |
| public final static String ARG_LITERAL = "I"; |
| public final static String ARG_ADDRESS = "A"; |
| public final static String ARG_FIELD = "F"; |
| public final static String ARG_METHOD = "M"; |
| public final static String ARG_INTFMETHOD = "Y"; |
| public final static String ARG_STRING = "S"; |
| public final static String ARG_REGLIST = "Z"; |
| public final static String ARG_REGRANGE = "G"; |
| |
| /** |
| * define type of parameters each instruction has |
| */ |
| public final static String ARG_REG_REG = ARG_REGISTER + ARG_REGISTER; |
| public final static String ARG_REG_REG_REG = ARG_REGISTER + ARG_REGISTER |
| + ARG_REGISTER; |
| public final static String ARG_REG_LITERAL = ARG_REGISTER + ARG_LITERAL; |
| public final static String ARG_REG_REG_LITERAL = ARG_REGISTER |
| + ARG_REGISTER + ARG_LITERAL; |
| public final static String ARG_REG_ADDRESS = ARG_REGISTER + ARG_ADDRESS; |
| public final static String ARG_REG_REG_ADDRESS = ARG_REGISTER |
| + ARG_REGISTER + ARG_ADDRESS; |
| public final static String ARG_REG_TYPE = ARG_REGISTER + ARG_TYPE; |
| public final static String ARG_REG_REG_TYPE = ARG_REGISTER + ARG_REGISTER |
| + ARG_TYPE; |
| public final static String ARG_REG_FIELD = ARG_REGISTER + ARG_FIELD; |
| public final static String ARG_REG_REG_FIELD = ARG_REGISTER + ARG_REGISTER |
| + ARG_FIELD; |
| public final static String ARG_REG_STRING = ARG_REGISTER + ARG_STRING; |
| public final static String ARG_REG_REG_STRING = ARG_REGISTER + ARG_REGISTER |
| + ARG_STRING; |
| public final static String ARG_REGLIST_TYPE = ARG_REGLIST + ARG_TYPE; |
| public final static String ARG_REGLIST_METHOD = ARG_REGLIST + ARG_METHOD; |
| public final static String ARG_REGLIST_INTFMETHOD = ARG_REGLIST |
| + ARG_INTFMETHOD; |
| public final static String ARG_REGRANGE_TYPE = ARG_REGRANGE + ARG_TYPE; |
| public final static String ARG_REGRANGE_METHOD = ARG_REGRANGE + ARG_METHOD; |
| public final static String ARG_REGRANGE_INTFMETHOD = ARG_REGRANGE |
| + ARG_INTFMETHOD; |
| |
| public static DopInfo get(String name) { |
| return (DopInfo) dopsTable.get(name); |
| } |
| |
| public static boolean contains(String name) { |
| return dopsTable.get(name) != null; |
| } |
| |
| /** |
| * Adds new opcode to table |
| */ |
| static private void add(String name, Dop opcode, String args) { |
| DopInfo info = new DopInfo(); |
| info.name = name; |
| info.opcode = opcode; |
| info.args = args; |
| dopsTable.put(name, info); |
| } |
| |
| static private String getArgsFormat(Dop dop) { |
| InsnFormat format = dop.getFormat(); |
| |
| if (format instanceof Form10x) return ""; |
| if (format instanceof Form12x) return ARG_REG_REG; |
| if (format instanceof Form11n) return ARG_REG_LITERAL; |
| if (format instanceof Form11x) return ARG_REGISTER; |
| if (format instanceof Form10t || format instanceof Form20t) |
| return ARG_ADDRESS; |
| if (format instanceof Form22x) return ARG_REG_REG; |
| if (format instanceof Form21t) return ARG_REG_ADDRESS; |
| if (format instanceof Form21s) return ARG_REG_LITERAL; |
| if (format instanceof Form21h) return ARG_REG_LITERAL; |
| if (format instanceof Form21c) { |
| switch (dop.getOpcode()) { |
| case Opcodes.CONST_CLASS: |
| case Opcodes.CHECK_CAST: |
| case Opcodes.NEW_INSTANCE: |
| return ARG_REG_TYPE; |
| case Opcodes.SGET: |
| case Opcodes.SGET_WIDE: |
| case Opcodes.SGET_OBJECT: |
| case Opcodes.SGET_BOOLEAN: |
| case Opcodes.SGET_BYTE: |
| case Opcodes.SGET_CHAR: |
| case Opcodes.SGET_SHORT: |
| case Opcodes.SPUT: |
| case Opcodes.SPUT_WIDE: |
| case Opcodes.SPUT_OBJECT: |
| case Opcodes.SPUT_BOOLEAN: |
| case Opcodes.SPUT_BYTE: |
| case Opcodes.SPUT_CHAR: |
| case Opcodes.SPUT_SHORT: |
| return ARG_REG_FIELD; |
| default: |
| return ARG_REG_STRING; |
| } |
| } |
| if (format instanceof Form23x) return ARG_REG_REG_REG; |
| if (format instanceof Form22b) return ARG_REG_REG_LITERAL; |
| if (format instanceof Form22t) return ARG_REG_REG_ADDRESS; |
| if (format instanceof Form22s) return ARG_REG_REG_LITERAL; |
| if (format instanceof Form22c) { |
| switch (dop.getOpcode()) { |
| case Opcodes.INSTANCE_OF: |
| case Opcodes.NEW_ARRAY: |
| return ARG_REG_REG_TYPE; |
| case Opcodes.IGET: |
| case Opcodes.IGET_WIDE: |
| case Opcodes.IGET_OBJECT: |
| case Opcodes.IGET_BOOLEAN: |
| case Opcodes.IGET_BYTE: |
| case Opcodes.IGET_CHAR: |
| case Opcodes.IGET_SHORT: |
| case Opcodes.IPUT: |
| case Opcodes.IPUT_WIDE: |
| case Opcodes.IPUT_OBJECT: |
| case Opcodes.IPUT_BOOLEAN: |
| case Opcodes.IPUT_BYTE: |
| case Opcodes.IPUT_CHAR: |
| case Opcodes.IPUT_SHORT: |
| return ARG_REG_REG_FIELD; |
| default: |
| return ARG_REG_REG_STRING; |
| } |
| } |
| if (format instanceof Form30t) return ARG_ADDRESS; |
| if (format instanceof Form32x) return ARG_REG_REG; |
| if (format instanceof Form31i) return ARG_REG_LITERAL; |
| if (format instanceof Form31t) return ARG_REG_ADDRESS; |
| if (format instanceof Form31c) return ARG_REG_STRING; |
| if (format instanceof Form35c) { |
| switch (dop.getOpcode()) { |
| case Opcodes.INVOKE_VIRTUAL: |
| case Opcodes.INVOKE_SUPER: |
| case Opcodes.INVOKE_DIRECT: |
| case Opcodes.INVOKE_STATIC: |
| return ARG_REGLIST_METHOD; |
| case Opcodes.INVOKE_INTERFACE: |
| return ARG_REGLIST_INTFMETHOD; |
| default: |
| return ARG_REGLIST_TYPE; |
| } |
| } |
| if (format instanceof Form3rc) { |
| switch (dop.getOpcode()) { |
| case Opcodes.FILLED_NEW_ARRAY_RANGE: |
| return ARG_REGRANGE_TYPE; |
| case Opcodes.INVOKE_INTERFACE_RANGE: |
| return ARG_REGRANGE_INTFMETHOD; |
| default: |
| return ARG_REGRANGE_METHOD; |
| } |
| } |
| if (format instanceof Form51l) return ARG_REG_LITERAL; // not "RL" since |
| // it is |
| // processed as |
| // Number |
| |
| return ""; |
| } |
| |
| /** |
| * dopsTable initialization |
| */ |
| static { |
| dopsTable = new Hashtable<String, DopInfo>(); |
| |
| for (int i = 0; i < Opcodes.MAX_VALUE - Opcodes.MIN_VALUE + 1; i++) { |
| try { |
| Dop dop = Dops.get(i); |
| add(dop.getName(), dop, getArgsFormat(dop)); |
| } catch (Exception e) { |
| |
| } |
| } |
| } |
| |
| }; |
