/*

 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "code/debugInfoRec.hpp"

#include "code/nmethod.hpp"

#include "code/pcDesc.hpp"

#include "code/scopeDesc.hpp"

#include "memory/resourceArea.hpp"

PcDesc::PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset) {

  _pc_offset           = pc_offset;

  _scope_decode_offset = scope_decode_offset;

  _obj_decode_offset   = obj_decode_offset;

  _flags               = 0;

}

address PcDesc::real_pc(const CompiledMethod* code) const {

  return code->code_begin() + pc_offset();

}

void PcDesc::print_on(outputStream* st, CompiledMethod* code) {

#ifndef PRODUCT

  ResourceMark rm;

  st->print("PcDesc(pc=" PTR_FORMAT " offset=%x bits=%x):", p2i(real_pc(code)), pc_offset(), _flags);

  if (scope_decode_offset() == DebugInformationRecorder::serialized_null) {

    st->cr();

    return;

  }

  int tab = 8;

  int pos = st->position() + 2; // current column plus two spaces

  pos = ((pos+tab-1)/tab)*tab;

  for (ScopeDesc* sd = code->scope_desc_at(real_pc(code));

       sd != NULL;

       sd = sd->sender()) {

    sd->print_on(st);

  }

#endif

}

bool PcDesc::verify(CompiledMethod* code) {

  //Unimplemented();

  return true;

}