2 * Copyright (c) 2002-2004 The Regents of The University of Michigan
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.
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.
28 * Authors: Nathan Binkert
35 #include <sys/types.h>
41 #include "base/cprintf.hh"
42 #include "base/loader/object_file.hh"
43 #include "base/loader/symtab.hh"
45 #include "base/loader/ecoff_object.hh"
46 #include "base/loader/aout_object.hh"
47 #include "base/loader/elf_object.hh"
48 #include "base/loader/raw_object.hh"
50 #include "mem/translating_port.hh"
54 ObjectFile::ObjectFile(const string
&_filename
, int _fd
,
55 size_t _len
, uint8_t *_data
,
56 Arch _arch
, OpSys _opSys
)
57 : filename(_filename
), descriptor(_fd
), fileData(_data
), len(_len
),
58 arch(_arch
), opSys(_opSys
)
63 ObjectFile::~ObjectFile()
70 ObjectFile::loadSection(Section
*sec
, Port
*memPort
, Addr addrMask
)
73 Addr addr
= sec
->baseAddr
& addrMask
;
75 memPort
->writeBlob(addr
, sec
->fileImage
, sec
->size
);
78 // no image: must be bss
79 memPort
->memsetBlob(addr
, 0, sec
->size
);
87 ObjectFile::loadSections(Port
*memPort
, Addr addrMask
)
89 return (loadSection(&text
, memPort
, addrMask
)
90 && loadSection(&data
, memPort
, addrMask
)
91 && loadSection(&bss
, memPort
, addrMask
));
98 if (descriptor
>= 0) {
104 ::munmap((char*)fileData
, len
);
111 createObjectFile(const string
&fname
, bool raw
)
114 int fd
= open(fname
.c_str(), O_RDONLY
);
119 // find the length of the file by seeking to the end
120 size_t len
= (size_t)lseek(fd
, 0, SEEK_END
);
122 // mmap the whole shebang
124 (uint8_t *)mmap(NULL
, len
, PROT_READ
, MAP_SHARED
, fd
, 0);
125 if (fileData
== MAP_FAILED
) {
130 ObjectFile
*fileObj
= NULL
;
132 // figure out what we have here
133 if ((fileObj
= EcoffObject::tryFile(fname
, fd
, len
, fileData
)) != NULL
) {
137 if ((fileObj
= AoutObject::tryFile(fname
, fd
, len
, fileData
)) != NULL
) {
141 if ((fileObj
= ElfObject::tryFile(fname
, fd
, len
, fileData
)) != NULL
) {
146 return RawObject::tryFile(fname
, fd
, len
, fileData
);
148 // don't know what it is
150 munmap((char*)fileData
, len
);