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/_methodComparator.cpp.incl"





  27 
  28 BytecodeStream *MethodComparator::_s_old;
  29 BytecodeStream *MethodComparator::_s_new;
  30 constantPoolOop MethodComparator::_old_cp;
  31 constantPoolOop MethodComparator::_new_cp;
  32 BciMap *MethodComparator::_bci_map;
  33 bool MethodComparator::_switchable_test;
  34 GrowableArray<int> *MethodComparator::_fwd_jmps;
  35 
  36 bool MethodComparator::methods_EMCP(methodOop old_method, methodOop new_method) {
  37   if (old_method->code_size() != new_method->code_size())
  38     return false;
  39   if (check_stack_and_locals_size(old_method, new_method) != 0) {
  40     // RC_TRACE macro has an embedded ResourceMark
  41     RC_TRACE(0x00800000, ("Methods %s non-comparable with diagnosis %d",
  42       old_method->name()->as_C_string(),
  43       check_stack_and_locals_size(old_method, new_method)));
  44     return false;
  45   }
  46 

   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 "oops/oop.inline.hpp"
  27 #include "oops/symbolOop.hpp"
  28 #include "prims/jvmtiRedefineClassesTrace.hpp"
  29 #include "prims/methodComparator.hpp"
  30 #include "runtime/handles.inline.hpp"
  31 #include "utilities/globalDefinitions.hpp"
  32 
  33 BytecodeStream *MethodComparator::_s_old;
  34 BytecodeStream *MethodComparator::_s_new;
  35 constantPoolOop MethodComparator::_old_cp;
  36 constantPoolOop MethodComparator::_new_cp;
  37 BciMap *MethodComparator::_bci_map;
  38 bool MethodComparator::_switchable_test;
  39 GrowableArray<int> *MethodComparator::_fwd_jmps;
  40 
  41 bool MethodComparator::methods_EMCP(methodOop old_method, methodOop new_method) {
  42   if (old_method->code_size() != new_method->code_size())
  43     return false;
  44   if (check_stack_and_locals_size(old_method, new_method) != 0) {
  45     // RC_TRACE macro has an embedded ResourceMark
  46     RC_TRACE(0x00800000, ("Methods %s non-comparable with diagnosis %d",
  47       old_method->name()->as_C_string(),
  48       check_stack_and_locals_size(old_method, new_method)));
  49     return false;
  50   }
  51