1 /*
   2  * Copyright (c) 1997, 2014, 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 "memory/allocation.inline.hpp"
  27 #include "oops/instanceKlass.hpp"
  28 #include "oops/method.hpp"
  29 #include "oops/oop.inline.hpp"
  30 #include "prims/privilegedStack.hpp"
  31 #include "runtime/vframe.hpp"
  32 
  33 void PrivilegedElement::initialize(vframeStream* vfst, oop context, PrivilegedElement* next, TRAPS) {
  34   Method* method        = vfst->method();
  35   _klass                = method->method_holder();
  36   _privileged_context   = context;
  37 #ifdef CHECK_UNHANDLED_OOPS
  38   THREAD->allow_unhandled_oop(&_privileged_context);
  39 #endif // CHECK_UNHANDLED_OOPS
  40   _frame_id             = vfst->frame_id();
  41   _next                 = next;
  42   assert(_privileged_context == NULL || _privileged_context->is_oop(), "must be an oop");
  43   assert(protection_domain() == NULL || protection_domain()->is_oop(), "must be an oop");
  44 }
  45 
  46 void PrivilegedElement::oops_do(OopClosure* f) {
  47   PrivilegedElement *cur = this;
  48   do {
  49     f->do_oop((oop*) &cur->_privileged_context);
  50     cur = cur->_next;
  51   } while(cur != NULL);
  52 }
  53 
  54 void PrivilegedElement::classes_do(KlassClosure* f) {
  55   PrivilegedElement *cur = this;
  56   do {
  57     f->do_klass(cur->_klass);
  58     cur = cur->_next;
  59   } while(cur != NULL);
  60 }
  61 
  62 //-------------------------------------------------------------------------------
  63 #ifndef PRODUCT
  64 
  65 void PrivilegedElement::print_on(outputStream* st) const {
  66   st->print("   " PTR_FORMAT " ", p2i(_frame_id));
  67   _klass->print_value_on(st);
  68   if (protection_domain() != NULL) {
  69     st->print("   ");
  70     protection_domain()->print_value_on(st);
  71   }
  72   st->cr();
  73 }
  74 
  75 bool PrivilegedElement::contains(address addr) {
  76   PrivilegedElement *e = (PrivilegedElement *)addr;
  77   if (e >= this && e < this+1) return true;
  78 
  79   if (_next != NULL) {
  80     return _next->contains(addr);
  81   } else {
  82     return false;
  83   }
  84 }
  85 
  86 #endif
--- EOF ---