src/base/loader/memory_image.cc

   1 /*
   2  * Copyright (c) 2002-2004 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include "base/loader/memory_image.hh"
  30 #include "mem/port_proxy.hh"
  31
  32 namespace Loader
  33 {
  34
  35 bool
  36 MemoryImage::writeSegment(const Segment &seg, const PortProxy &proxy) const
  37 {
  38     if (seg.size != 0) {
  39         if (seg.data) {
  40             proxy.writeBlob(seg.base, seg.data, seg.size);
  41         } else {
  42             // no image: must be bss
  43             proxy.memsetBlob(seg.base, 0, seg.size);
  44         }
  45     }
  46     return true;
  47 }
  48
  49 bool
  50 MemoryImage::write(const PortProxy &proxy) const
  51 {
  52     for (auto &seg: _segments)
  53         if (!writeSegment(seg, proxy))
  54             return false;
  55     return true;
  56 }
  57
  58 MemoryImage &
  59 MemoryImage::move(std::function<Addr(Addr)> mapper)
  60 {
  61     for (auto &seg: _segments)
  62         seg.base = mapper(seg.base);
  63     return *this;
  64 }
  65
  66 } // namespace Loader