1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
|
/* Sparc64 specific support for Elf loading and relocation.
Copyright 1997 Linux International.
Contributed by Jakub Jelinek <jj@sunsite.mff.cuni.cz>
This file is part of the Linux modutils.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This program 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 for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <stddef.h>
#include <module.h>
#include <obj.h>
#include <util.h>
/*======================================================================*/
struct obj_file *
arch_new_file (void)
{
return xmalloc(sizeof(struct obj_file));
}
struct obj_section *
arch_new_section (void)
{
return xmalloc(sizeof(struct obj_section));
}
struct obj_symbol *
arch_new_symbol (void)
{
return xmalloc(sizeof(struct obj_symbol));
}
#ifdef BROKEN_SPARC64_RELOCS
#undef R_SPARC_PLT32
#undef R_SPARC_HIPLT22
#undef R_SPARC_LOPLT10
#undef R_SPARC_PCPLT32
#undef R_SPARC_PCPLT22
#undef R_SPARC_PCPLT10
#undef R_SPARC_10
#undef R_SPARC_11
#undef R_SPARC_64
#undef R_SPARC_OLO10
#undef R_SPARC_HH22
#undef R_SPARC_HM10
#undef R_SPARC_LM22
#undef R_SPARC_PC_HH22
#undef R_SPARC_PC_HM10
#undef R_SPARC_PC_LM22
#undef R_SPARC_WDISP16
#undef R_SPARC_WDISP19
#undef R_SPARC_GLOB_JMP
#undef R_SPARC_7
#undef R_SPARC_5
#undef R_SPARC_6
#define R_SPARC_10 24
#define R_SPARC_11 25
#define R_SPARC_64 26
#define R_SPARC_OLO10 27
#define R_SPARC_HH22 28
#define R_SPARC_HM10 29
#define R_SPARC_LM22 30
#define R_SPARC_PC_HH22 31
#define R_SPARC_PC_HM10 32
#define R_SPARC_PC_LM22 33
#define R_SPARC_WDISP16 34
#define R_SPARC_WDISP19 35
#define R_SPARC_GLOB_JMP 36
#define R_SPARC_7 37
#define R_SPARC_5 38
#define R_SPARC_6 39
#else
#ifndef R_SPARC_64
#define R_SPARC_64 32
#define R_SPARC_OLO10 33
#define R_SPARC_HH22 34
#define R_SPARC_HM10 35
#define R_SPARC_LM22 36
#define R_SPARC_PC_HH22 37
#define R_SPARC_PC_HM10 38
#define R_SPARC_PC_LM22 39
#endif
#endif
int
arch_load_proc_section(struct obj_section *sec, int fp)
{
/* Assume it's just a debugging section that we can safely
ignore ... */
sec->contents = NULL;
return 0;
}
#define ELF64_R_TYPE_ID(info) ((info) & 0xff)
#define ELF64_R_TYPE_DATA(info) ((info) >> 8)
enum obj_reloc
arch_apply_relocation (struct obj_file *ef,
struct obj_section *targsec,
struct obj_section *symsec,
struct obj_symbol *sym,
Elf64_Rela *rel,
Elf64_Addr v)
{
unsigned int *loc = (unsigned int *)(targsec->contents + rel->r_offset);
unsigned int dot = targsec->header.sh_addr + rel->r_offset;
enum obj_reloc ret = obj_reloc_ok;
switch (ELF64_R_TYPE_ID(rel->r_info))
{
case R_SPARC_NONE:
break;
case R_SPARC_64:
case R_SPARC_UA64:
if (! ((long) loc & 3)) {
/* Common in .eh_frame */
((unsigned int *) loc) [0] = v >> 32;
((unsigned int *) loc) [1] = v;
break;
}
((unsigned char *) loc) [0] = v >> 56;
((unsigned char *) loc) [1] = v >> 48;
((unsigned char *) loc) [2] = v >> 40;
((unsigned char *) loc) [3] = v >> 32;
((unsigned char *) loc) [4] = v >> 24;
((unsigned char *) loc) [5] = v >> 16;
((unsigned char *) loc) [6] = v >> 8;
((unsigned char *) loc) [7] = v;
break;
case R_SPARC_32:
case R_SPARC_UA32:
if (! ((long) loc & 3)) {
*loc = v;
break;
}
((unsigned char *) loc) [0] = v >> 24;
((unsigned char *) loc) [1] = v >> 16;
((unsigned char *) loc) [2] = v >> 8;
((unsigned char *) loc) [3] = v;
break;
case R_SPARC_16:
if (v > 0xffff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0xffff) | (v & 0xffff);
break;
case R_SPARC_8:
if (v > 0xff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0xff) | (v & 0xff);
break;
case R_SPARC_DISP32:
v -= dot;
*loc = v;
break;
case R_SPARC_DISP16:
v -= dot;
if (v > 0xffff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0xffff) | (v & 0xffff);
break;
case R_SPARC_DISP8:
v -= dot;
if (v > 0xff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0xff) | (v & 0xff);
break;
case R_SPARC_WDISP30:
v -= dot;
if (v % 4)
ret = obj_reloc_dangerous;
*loc = (*loc & ~0x3fffffff) | ((v >> 2) & 0x3fffffff);
break;
/* MEDLOW code model relocs */
case R_SPARC_LO10:
*loc = (*loc & ~0x3ff) | (v & 0x3ff);
break;
case R_SPARC_HI22:
*loc = (*loc & ~0x3fffff) | (v >> 10);
break;
case R_SPARC_OLO10:
*loc = (*loc & ~0x1fff) | (((v & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info)) & 0x1fff);
break;
/* MEDMID code model relocs */
case R_SPARC_H44:
*loc = (*loc & ~0x3fffff) | (v >> 22);
break;
case R_SPARC_M44:
*loc = (*loc & ~0x3ff) | ((v >> 12) & 0x3ff);
break;
case R_SPARC_L44:
*loc = (*loc & ~0xfff) | (v & 0xfff);
break;
/* MEDANY code model relocs */
case R_SPARC_HH22:
*loc = (*loc & ~0x3fffff) | (v >> 42);
break;
case R_SPARC_HM10:
*loc = (*loc & ~0x3ff) | ((v >> 32) & 0x3ff);
break;
case R_SPARC_LM22:
*loc = (*loc & ~0x3fffff) | ((v >> 10) & 0x3fffff);
break;
case R_SPARC_WDISP22:
v -= dot;
if (v % 4)
ret = obj_reloc_dangerous;
*loc = (*loc & ~0x3fffff) | ((v >> 2) & 0x3fffff);
break;
case R_SPARC_22:
if (v > 0x3fffff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0x3fffff) | (v & 0x3fffff);
break;
case R_SPARC_13:
if (v > 0x1fff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0x1fff) | (v & 0x1fff);
break;
case R_SPARC_PC10:
v -= dot;
*loc = (*loc & ~0x3ff) | (v & 0x3ff);
break;
case R_SPARC_PC22:
v -= dot;
*loc = (*loc & ~0x3fffff) | ((v >> 10) & 0x3fffff);
break;
#ifdef R_SPARC_10
case R_SPARC_10:
if (v > 0x3ff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0x3ff) | (v & 0x3ff);
break;
case R_SPARC_11:
if (v > 0x7ff)
ret = obj_reloc_overflow;
*loc = (*loc & ~0x7ff) | (v & 0x7ff);
break;
#ifdef R_SPARC_64
case R_SPARC_PC_HH22:
v -= dot;
*loc = (*loc & ~0x3fffff) | (v >> 42);
break;
case R_SPARC_PC_HM10:
v -= dot;
*loc = (*loc & ~0x3ff) | ((v >> 32) & 0x3ff);
break;
case R_SPARC_PC_LM22:
v -= dot;
*loc = (*loc & ~0x3fffff) | ((v >> 10) & 0x3fffff);
break;
#endif
case R_SPARC_WDISP16:
v -= dot;
if (v % 4)
ret = obj_reloc_dangerous;
*loc = (*loc & ~0x303fff) | ((v << 4) & 0x300000) | ((v >> 2) & 0x3fff);
break;
case R_SPARC_WDISP19:
v -= dot;
if (v % 4)
ret = obj_reloc_dangerous;
*loc = (*loc & ~0x7ffff) | ((v >> 2) & 0x7ffff);
break;
case R_SPARC_7:
if (v > 0x7f)
ret = obj_reloc_overflow;
*loc = (*loc & ~0x7f) | (v & 0x7f);
break;
case R_SPARC_5:
if (v > 0x1f)
ret = obj_reloc_overflow;
*loc = (*loc & ~0x1f) | (v & 0x1f);
break;
case R_SPARC_6:
if (v > 0x3f)
ret = obj_reloc_overflow;
*loc = (*loc & ~0x3f) | (v & 0x3f);
break;
#endif /* R_SPARC_10 */
default:
ret = obj_reloc_unhandled;
break;
}
return ret;
}
int
arch_create_got (struct obj_file *ef)
{
return 1;
}
int
arch_init_module (struct obj_file *f, struct module *mod)
{
return 1;
}
int
arch_finalize_section_address(struct obj_file *f, Elf64_Addr base)
{
int i, n = f->header.e_shnum;
f->baseaddr = base;
for (i = 0; i < n; ++i)
f->sections[i]->header.sh_addr += base;
return 1;
}
int
arch_archdata (struct obj_file *fin, struct obj_section *sec)
{
return 0;
}
|
