raw_object.cc revision 3812 
1/*
2 * Copyright (c) 2006 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 * Authors: Steve Reinhardt
29 */
30
31#include "base/loader/raw_object.hh"
32#include "base/loader/symtab.hh"
33#include "base/trace.hh"
34
35ObjectFile *
36RawObject::tryFile(const std::string &fname, int fd, size_t len, uint8_t *data)
37{
38    return new RawObject(fname, fd, len, data, ObjectFile::UnknownArch,
39            ObjectFile::UnknownOpSys);
40}
41
42RawObject::RawObject(const std::string &_filename, int _fd, size_t _len,
43        uint8_t *_data, Arch _arch, OpSys _opSys)
44    : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
45{
46    text.baseAddr = 0;
47    text.size = len;
48    text.fileImage = fileData;
49
50    data.baseAddr = 0;
51    data.size = 0;
52    data.fileImage = NULL;
53
54    bss.baseAddr = 0;
55    bss.size = 0;
56    bss.fileImage = NULL;
57
58    DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n",
59             text.baseAddr, text.size, data.baseAddr, data.size,
60             bss.baseAddr, bss.size);
61}
62
63bool
64RawObject::loadGlobalSymbols(SymbolTable *symtab, Addr addrMask)
65{
66    int fnameStart = filename.rfind('/',filename.size()) + 1;
67    int extStart = filename.rfind('.',filename.size());
68    symtab->insert(text.baseAddr & addrMask, filename.substr(fnameStart,
69                extStart-fnameStart) + "_start");
70    return true;
71}
72
73bool
74RawObject::loadLocalSymbols(SymbolTable *symtab, Addr addrMask)
75{
76    int fnameStart = filename.rfind('/',filename.size()) + 1;
77    int extStart = filename.rfind('.',filename.size());
78    symtab->insert(text.baseAddr & addrMask, filename.substr(fnameStart,
79                extStart-fnameStart) + "_start");
80    return true;
81}
82