1/*
2 * Copyright (c) 2003-2005 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 <string>
32
33#include "base/loader/ecoff_object.hh"
34#include "base/loader/symtab.hh"
35#include "base/misc.hh"
36#include "base/trace.hh"
37#include "base/types.hh"
38#include "debug/Loader.hh"
39
40// Only alpha will be able to load ecoff files for now.
41// base/types.hh and ecoff_machdep.h must be before the other .h files
42// because they are are gathered from other code bases and require some
43// typedefs from those files.
44#include "arch/alpha/ecoff_machdep.h"
45#include "base/loader/coff_sym.h"
46#include "base/loader/coff_symconst.h"
47#include "base/loader/exec_ecoff.h"
48
49using namespace std;
50
51ObjectFile *
| 1/*
2 * Copyright (c) 2003-2005 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 <string>
32
33#include "base/loader/ecoff_object.hh"
34#include "base/loader/symtab.hh"
35#include "base/misc.hh"
36#include "base/trace.hh"
37#include "base/types.hh"
38#include "debug/Loader.hh"
39
40// Only alpha will be able to load ecoff files for now.
41// base/types.hh and ecoff_machdep.h must be before the other .h files
42// because they are are gathered from other code bases and require some
43// typedefs from those files.
44#include "arch/alpha/ecoff_machdep.h"
45#include "base/loader/coff_sym.h"
46#include "base/loader/coff_symconst.h"
47#include "base/loader/exec_ecoff.h"
48
49using namespace std;
50
51ObjectFile *
|
52EcoffObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
| 52EcoffObject::tryFile(const string &fname, size_t len, uint8_t *data)
|
53{
54 if (((ecoff_filehdr *)data)->f_magic == ECOFF_MAGIC_ALPHA) {
55 // it's Alpha ECOFF
| 53{
54 if (((ecoff_filehdr *)data)->f_magic == ECOFF_MAGIC_ALPHA) {
55 // it's Alpha ECOFF
|
56 return new EcoffObject(fname, fd, len, data,
| 56 return new EcoffObject(fname, len, data,
|
57 ObjectFile::Alpha, ObjectFile::Tru64);
58 }
59 else {
60 return NULL;
61 }
62}
63
64
| 57 ObjectFile::Alpha, ObjectFile::Tru64);
58 }
59 else {
60 return NULL;
61 }
62}
63
64
|
65EcoffObject::EcoffObject(const string &_filename, int _fd,
66 size_t _len, uint8_t *_data,
| 65EcoffObject::EcoffObject(const string &_filename, size_t _len, uint8_t *_data,
|
67 Arch _arch, OpSys _opSys)
| 66 Arch _arch, OpSys _opSys)
|
68 : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
| 67 : ObjectFile(_filename, _len, _data, _arch, _opSys)
|
69{
70 execHdr = (ecoff_exechdr *)fileData;
71 fileHdr = &(execHdr->f);
72 aoutHdr = &(execHdr->a);
73
74 entry = aoutHdr->entry;
75
76 text.baseAddr = aoutHdr->text_start;
77 text.size = aoutHdr->tsize;
78 text.fileImage = fileData + ECOFF_TXTOFF(execHdr);
79
80 data.baseAddr = aoutHdr->data_start;
81 data.size = aoutHdr->dsize;
82 data.fileImage = fileData + ECOFF_DATOFF(execHdr);
83
84 bss.baseAddr = aoutHdr->bss_start;
85 bss.size = aoutHdr->bsize;
86 bss.fileImage = NULL;
87
88 DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n",
89 text.baseAddr, text.size, data.baseAddr, data.size,
90 bss.baseAddr, bss.size);
91}
92
93
94bool
95EcoffObject::loadGlobalSymbols(SymbolTable *symtab, Addr addrMask)
96{
97 if (!symtab)
98 return false;
99
100 if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) {
101 warn("loadGlobalSymbols: wrong magic on %s\n", filename);
102 return false;
103 }
104
105 ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr);
106 if (syms->magic != magicSym2) {
107 warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename);
108 return false;
109 }
110
111 ecoff_extsym *ext_syms = (ecoff_extsym *)(fileData + syms->cbExtOffset);
112
113 char *ext_strings = (char *)(fileData + syms->cbSsExtOffset);
114 for (int i = 0; i < syms->iextMax; i++) {
115 ecoff_sym *entry = &(ext_syms[i].asym);
116 if (entry->iss != -1)
117 symtab->insert(entry->value, ext_strings + entry->iss);
118 }
119
120 return true;
121}
122
123bool
124EcoffObject::loadLocalSymbols(SymbolTable *symtab, Addr addrMask)
125{
126 if (!symtab)
127 return false;
128
129 if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) {
130 warn("loadGlobalSymbols: wrong magic on %s\n", filename);
131 return false;
132 }
133
134 ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr);
135 if (syms->magic != magicSym2) {
136 warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename);
137 return false;
138 }
139
140 ecoff_sym *local_syms = (ecoff_sym *)(fileData + syms->cbSymOffset);
141 char *local_strings = (char *)(fileData + syms->cbSsOffset);
142 ecoff_fdr *fdesc = (ecoff_fdr *)(fileData + syms->cbFdOffset);
143
144 for (int i = 0; i < syms->ifdMax; i++) {
145 ecoff_sym *entry = (ecoff_sym *)(local_syms + fdesc[i].isymBase);
146 char *strings = (char *)(local_strings + fdesc[i].issBase);
147 for (int j = 0; j < fdesc[i].csym; j++) {
148 if (entry[j].st == stGlobal || entry[j].st == stProc)
149 if (entry[j].iss != -1)
150 symtab->insert(entry[j].value, strings + entry[j].iss);
151 }
152 }
153
154 for (int i = 0; i < syms->isymMax; i++) {
155 ecoff_sym *entry = &(local_syms[i]);
156 if (entry->st == stProc)
157 symtab->insert(entry->value, local_strings + entry->iss);
158 }
159
160 return true;
161}
| 68{
69 execHdr = (ecoff_exechdr *)fileData;
70 fileHdr = &(execHdr->f);
71 aoutHdr = &(execHdr->a);
72
73 entry = aoutHdr->entry;
74
75 text.baseAddr = aoutHdr->text_start;
76 text.size = aoutHdr->tsize;
77 text.fileImage = fileData + ECOFF_TXTOFF(execHdr);
78
79 data.baseAddr = aoutHdr->data_start;
80 data.size = aoutHdr->dsize;
81 data.fileImage = fileData + ECOFF_DATOFF(execHdr);
82
83 bss.baseAddr = aoutHdr->bss_start;
84 bss.size = aoutHdr->bsize;
85 bss.fileImage = NULL;
86
87 DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n",
88 text.baseAddr, text.size, data.baseAddr, data.size,
89 bss.baseAddr, bss.size);
90}
91
92
93bool
94EcoffObject::loadGlobalSymbols(SymbolTable *symtab, Addr addrMask)
95{
96 if (!symtab)
97 return false;
98
99 if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) {
100 warn("loadGlobalSymbols: wrong magic on %s\n", filename);
101 return false;
102 }
103
104 ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr);
105 if (syms->magic != magicSym2) {
106 warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename);
107 return false;
108 }
109
110 ecoff_extsym *ext_syms = (ecoff_extsym *)(fileData + syms->cbExtOffset);
111
112 char *ext_strings = (char *)(fileData + syms->cbSsExtOffset);
113 for (int i = 0; i < syms->iextMax; i++) {
114 ecoff_sym *entry = &(ext_syms[i].asym);
115 if (entry->iss != -1)
116 symtab->insert(entry->value, ext_strings + entry->iss);
117 }
118
119 return true;
120}
121
122bool
123EcoffObject::loadLocalSymbols(SymbolTable *symtab, Addr addrMask)
124{
125 if (!symtab)
126 return false;
127
128 if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) {
129 warn("loadGlobalSymbols: wrong magic on %s\n", filename);
130 return false;
131 }
132
133 ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr);
134 if (syms->magic != magicSym2) {
135 warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename);
136 return false;
137 }
138
139 ecoff_sym *local_syms = (ecoff_sym *)(fileData + syms->cbSymOffset);
140 char *local_strings = (char *)(fileData + syms->cbSsOffset);
141 ecoff_fdr *fdesc = (ecoff_fdr *)(fileData + syms->cbFdOffset);
142
143 for (int i = 0; i < syms->ifdMax; i++) {
144 ecoff_sym *entry = (ecoff_sym *)(local_syms + fdesc[i].isymBase);
145 char *strings = (char *)(local_strings + fdesc[i].issBase);
146 for (int j = 0; j < fdesc[i].csym; j++) {
147 if (entry[j].st == stGlobal || entry[j].st == stProc)
148 if (entry[j].iss != -1)
149 symtab->insert(entry[j].value, strings + entry[j].iss);
150 }
151 }
152
153 for (int i = 0; i < syms->isymMax; i++) {
154 ecoff_sym *entry = &(local_syms[i]);
155 if (entry->st == stProc)
156 symtab->insert(entry->value, local_strings + entry->iss);
157 }
158
159 return true;
160}
|