1 /*
   2  * Copyright (c) 1997, 2009, 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 # include "incls/_precompiled.incl"
  26 # include "incls/_javaClasses.cpp.incl"































  27 
  28 static bool find_field(instanceKlass* ik,
  29                        symbolOop name_symbol, symbolOop signature_symbol,
  30                        fieldDescriptor* fd,
  31                        bool allow_super = false) {
  32   if (allow_super)
  33     return ik->find_field(name_symbol, signature_symbol, fd) != NULL;
  34   else
  35     return ik->find_local_field(name_symbol, signature_symbol, fd);
  36 }
  37 
  38 // Helpful routine for computing field offsets at run time rather than hardcoding them
  39 static void
  40 compute_offset(int &dest_offset,
  41                klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol,
  42                bool allow_super = false) {
  43   fieldDescriptor fd;
  44   instanceKlass* ik = instanceKlass::cast(klass_oop);
  45   if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) {
  46     ResourceMark rm;

   1 /*
   2  * Copyright (c) 1997, 2010, 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 #include "precompiled.hpp"
  26 #include "classfile/javaClasses.hpp"
  27 #include "classfile/symbolTable.hpp"
  28 #include "classfile/vmSymbols.hpp"
  29 #include "code/debugInfo.hpp"
  30 #include "code/pcDesc.hpp"
  31 #include "interpreter/interpreter.hpp"
  32 #include "memory/oopFactory.hpp"
  33 #include "memory/resourceArea.hpp"
  34 #include "memory/universe.inline.hpp"
  35 #include "oops/instanceKlass.hpp"
  36 #include "oops/klass.hpp"
  37 #include "oops/klassOop.hpp"
  38 #include "oops/methodOop.hpp"
  39 #include "oops/symbolOop.hpp"
  40 #include "oops/typeArrayOop.hpp"
  41 #include "runtime/fieldDescriptor.hpp"
  42 #include "runtime/handles.inline.hpp"
  43 #include "runtime/interfaceSupport.hpp"
  44 #include "runtime/java.hpp"
  45 #include "runtime/javaCalls.hpp"
  46 #include "runtime/safepoint.hpp"
  47 #include "runtime/vframe.hpp"
  48 #include "utilities/preserveException.hpp"
  49 #ifdef TARGET_OS_FAMILY_linux
  50 # include "thread_linux.inline.hpp"
  51 #endif
  52 #ifdef TARGET_OS_FAMILY_solaris
  53 # include "thread_solaris.inline.hpp"
  54 #endif
  55 #ifdef TARGET_OS_FAMILY_windows
  56 # include "thread_windows.inline.hpp"
  57 #endif
  58 
  59 static bool find_field(instanceKlass* ik,
  60                        symbolOop name_symbol, symbolOop signature_symbol,
  61                        fieldDescriptor* fd,
  62                        bool allow_super = false) {
  63   if (allow_super)
  64     return ik->find_field(name_symbol, signature_symbol, fd) != NULL;
  65   else
  66     return ik->find_local_field(name_symbol, signature_symbol, fd);
  67 }
  68 
  69 // Helpful routine for computing field offsets at run time rather than hardcoding them
  70 static void
  71 compute_offset(int &dest_offset,
  72                klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol,
  73                bool allow_super = false) {
  74   fieldDescriptor fd;
  75   instanceKlass* ik = instanceKlass::cast(klass_oop);
  76   if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) {
  77     ResourceMark rm;