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src/hotspot/share/runtime/rframe.cpp

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   1 /*
   2  * Copyright (c) 1997, 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 
  25 #include "precompiled.hpp"
  26 #include "code/codeCache.hpp"
  27 #include "interpreter/interpreter.hpp"

  28 #include "oops/oop.inline.hpp"
  29 #include "oops/symbol.hpp"
  30 #include "runtime/frame.inline.hpp"
  31 #include "runtime/rframe.hpp"
  32 #include "runtime/vframe.hpp"
  33 #include "runtime/vframe_hp.hpp"
  34 
  35 
  36 static RFrame*const  noCaller    = (RFrame*) 0x1;               // no caller (i.e., initial frame)
  37 static RFrame*const  noCallerYet = (RFrame*) 0x0;               // caller not yet computed
  38 
  39 RFrame::RFrame(frame fr, JavaThread* thread, RFrame*const callee) :
  40   _fr(fr), _thread(thread), _callee(callee), _num(callee ? callee->num() + 1 : 0) {
  41   _caller = (RFrame*)noCallerYet;
  42   _invocations = 0;
  43   _distance = 0;
  44 }
  45 
  46 void RFrame::set_distance(int d) {
  47   assert(is_compiled() || d >= 0, "should be positive");


   1 /*
   2  * Copyright (c) 1997, 2018, 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 "code/codeCache.hpp"
  27 #include "interpreter/interpreter.hpp"
  28 #include "oops/method.inline.hpp"
  29 #include "oops/oop.inline.hpp"
  30 #include "oops/symbol.hpp"
  31 #include "runtime/frame.inline.hpp"
  32 #include "runtime/rframe.hpp"
  33 #include "runtime/vframe.hpp"
  34 #include "runtime/vframe_hp.hpp"
  35 
  36 
  37 static RFrame*const  noCaller    = (RFrame*) 0x1;               // no caller (i.e., initial frame)
  38 static RFrame*const  noCallerYet = (RFrame*) 0x0;               // caller not yet computed
  39 
  40 RFrame::RFrame(frame fr, JavaThread* thread, RFrame*const callee) :
  41   _fr(fr), _thread(thread), _callee(callee), _num(callee ? callee->num() + 1 : 0) {
  42   _caller = (RFrame*)noCallerYet;
  43   _invocations = 0;
  44   _distance = 0;
  45 }
  46 
  47 void RFrame::set_distance(int d) {
  48   assert(is_compiled() || d >= 0, "should be positive");


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