1 /*
   2  * Copyright (c) 2002, 2020, 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 
  25 package sun.jvm.hotspot.debugger.linux;
  26 
  27 import java.lang.reflect.*;
  28 import sun.jvm.hotspot.debugger.*;
  29 import sun.jvm.hotspot.debugger.linux.amd64.*;
  30 import sun.jvm.hotspot.debugger.linux.x86.*;
  31 import sun.jvm.hotspot.debugger.linux.ppc64.*;
  32 
  33 class LinuxThreadContextFactory {
  34    static ThreadContext createThreadContext(LinuxDebugger dbg) {
  35       String cpu = dbg.getCPU();
  36       if (cpu.equals("x86")) {
  37          return new LinuxX86ThreadContext(dbg);
  38       } else if (cpu.equals("amd64")) {
  39          return new LinuxAMD64ThreadContext(dbg);
  40       }  else if (cpu.equals("ppc64")) {
  41           return new LinuxPPC64ThreadContext(dbg);
  42       } else  {
  43         try {
  44           Class tcc = Class.forName("sun.jvm.hotspot.debugger.linux." +
  45              cpu.toLowerCase() + ".Linux" + cpu.toUpperCase() +
  46              "ThreadContext");
  47           Constructor[] ctcc = tcc.getConstructors();
  48           return (ThreadContext)ctcc[0].newInstance(dbg);
  49         } catch (Exception e) {
  50           throw new RuntimeException("cpu " + cpu + " is not yet supported");
  51         }
  52       }
  53    }
  54 }