src/share/vm/runtime/reflection.cpp

Print this page




   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/_reflection.cpp.incl"




















  27 
  28 #define JAVA_1_5_VERSION                  49
  29 
  30 static void trace_class_resolution(klassOop to_class) {
  31   ResourceMark rm;
  32   int line_number = -1;
  33   const char * source_file = NULL;
  34   klassOop caller = NULL;
  35   JavaThread* jthread = JavaThread::current();
  36   if (jthread->has_last_Java_frame()) {
  37     vframeStream vfst(jthread);
  38     // skip over any frames belonging to java.lang.Class
  39     while (!vfst.at_end() &&
  40            instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class()) {
  41       vfst.next();
  42     }
  43     if (!vfst.at_end()) {
  44       // this frame is a likely suspect
  45       caller = vfst.method()->method_holder();
  46       line_number = vfst.method()->line_number_from_bci(vfst.bci());




   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/systemDictionary.hpp"
  29 #include "classfile/verifier.hpp"
  30 #include "classfile/vmSymbols.hpp"
  31 #include "interpreter/linkResolver.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/objArrayKlass.hpp"
  37 #include "oops/objArrayOop.hpp"
  38 #include "prims/jvm.h"
  39 #include "prims/methodHandleWalk.hpp"
  40 #include "runtime/arguments.hpp"
  41 #include "runtime/handles.inline.hpp"
  42 #include "runtime/javaCalls.hpp"
  43 #include "runtime/reflection.hpp"
  44 #include "runtime/reflectionUtils.hpp"
  45 #include "runtime/signature.hpp"
  46 #include "runtime/vframe.hpp"
  47 
  48 #define JAVA_1_5_VERSION                  49
  49 
  50 static void trace_class_resolution(klassOop to_class) {
  51   ResourceMark rm;
  52   int line_number = -1;
  53   const char * source_file = NULL;
  54   klassOop caller = NULL;
  55   JavaThread* jthread = JavaThread::current();
  56   if (jthread->has_last_Java_frame()) {
  57     vframeStream vfst(jthread);
  58     // skip over any frames belonging to java.lang.Class
  59     while (!vfst.at_end() &&
  60            instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class()) {
  61       vfst.next();
  62     }
  63     if (!vfst.at_end()) {
  64       // this frame is a likely suspect
  65       caller = vfst.method()->method_holder();
  66       line_number = vfst.method()->line_number_from_bci(vfst.bci());