1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package jdk.tools.jaotc;
  25 
  26 import jdk.tools.jaotc.binformat.BinaryContainer;
  27 import jdk.tools.jaotc.binformat.ByteContainer;
  28 import jdk.tools.jaotc.binformat.CodeContainer;
  29 import jdk.tools.jaotc.binformat.Relocation;
  30 import jdk.tools.jaotc.binformat.Relocation.RelocType;
  31 import jdk.tools.jaotc.binformat.Symbol;
  32 import jdk.tools.jaotc.binformat.Symbol.Binding;
  33 import jdk.tools.jaotc.binformat.Symbol.Kind;
  34 
  35 /**
  36  * Describes a relocation symbol of a call site. That is, WHERE to do a relocation.
  37  */
  38 abstract class CallSiteRelocationSymbol {
  39 
  40     public final Symbol symbol;
  41 
  42     public CallSiteRelocationSymbol(Symbol symbol) {
  43         assert symbol != null;
  44         this.symbol = symbol;
  45     }
  46 
  47     protected static Symbol createCodeContainerSymbol(BinaryContainer binaryContainer, String symbolName, int symbolOffset) {
  48         return binaryContainer.getCodeContainer().createSymbol(symbolOffset, Kind.OBJECT, Binding.LOCAL, 0, symbolName);
  49     }
  50 
  51     protected static void addCodeContainerRelocation(BinaryContainer binaryContainer, String symbolName, int symbolOffset, int relocationOffset) {
  52         Symbol symbol = createCodeContainerSymbol(binaryContainer, symbolName, symbolOffset);
  53         addExternalGotToPltRelocation(binaryContainer, symbol, relocationOffset);
  54     }
  55 
  56     protected static void addExtLinkageGotContainerRelocation(BinaryContainer binaryContainer, String symbolName, int symbolOffset, int relocationOffset) {
  57         ByteContainer container = binaryContainer.getExtLinkageGOTContainer();
  58         Symbol symbol = container.createGotSymbol(symbolOffset, symbolName);
  59         addExternalPltToGotRelocation(binaryContainer, symbol, relocationOffset);
  60     }
  61 
  62     /**

   1 /*
   2  * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package jdk.tools.jaotc;
  25 
  26 import jdk.tools.jaotc.binformat.BinaryContainer;
  27 import jdk.tools.jaotc.binformat.ByteContainer;
  28 import jdk.tools.jaotc.binformat.CodeContainer;
  29 import jdk.tools.jaotc.binformat.Relocation;
  30 import jdk.tools.jaotc.binformat.Relocation.RelocType;
  31 import jdk.tools.jaotc.binformat.Symbol;
  32 import jdk.tools.jaotc.binformat.Symbol.Binding;
  33 import jdk.tools.jaotc.binformat.Symbol.Kind;
  34 
  35 /**
  36  * Describes a relocation symbol of a call site. That is, WHERE to do a relocation.
  37  */
  38 abstract class CallSiteRelocationSymbol {
  39 
  40     final Symbol symbol;
  41 
  42     CallSiteRelocationSymbol(Symbol symbol) {
  43         assert symbol != null;
  44         this.symbol = symbol;
  45     }
  46 
  47     protected static Symbol createCodeContainerSymbol(BinaryContainer binaryContainer, String symbolName, int symbolOffset) {
  48         return binaryContainer.getCodeContainer().createSymbol(symbolOffset, Kind.OBJECT, Binding.LOCAL, 0, symbolName);
  49     }
  50 
  51     protected static void addCodeContainerRelocation(BinaryContainer binaryContainer, String symbolName, int symbolOffset, int relocationOffset) {
  52         Symbol symbol = createCodeContainerSymbol(binaryContainer, symbolName, symbolOffset);
  53         addExternalGotToPltRelocation(binaryContainer, symbol, relocationOffset);
  54     }
  55 
  56     protected static void addExtLinkageGotContainerRelocation(BinaryContainer binaryContainer, String symbolName, int symbolOffset, int relocationOffset) {
  57         ByteContainer container = binaryContainer.getExtLinkageGOTContainer();
  58         Symbol symbol = container.createGotSymbol(symbolOffset, symbolName);
  59         addExternalPltToGotRelocation(binaryContainer, symbol, relocationOffset);
  60     }
  61 
  62     /**