1 /* FRV-specific support for 32-bit ELF.
2    Copyright (C) 2002-2016 Free Software Foundation, Inc.
3 
4    This file is part of BFD, the Binary File Descriptor library.
5 
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3 of the License, or
9    (at your option) any later version.
10 
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with this program; if not, write to the Free Software
18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19    MA 02110-1301, USA.  */
20 
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/frv.h"
26 #include "dwarf2.h"
27 #include "hashtab.h"
28 
29 /* Forward declarations.  */
30 
31 
32 static reloc_howto_type elf32_frv_howto_table [] =
33 {
34   /* This reloc does nothing.  */
35   HOWTO (R_FRV_NONE,		/* type */
36 	 0,			/* rightshift */
37 	 3,			/* size (0 = byte, 1 = short, 2 = long) */
38 	 0,			/* bitsize */
39 	 FALSE,			/* pc_relative */
40 	 0,			/* bitpos */
41 	 complain_overflow_dont, /* complain_on_overflow */
42 	 bfd_elf_generic_reloc,	/* special_function */
43 	 "R_FRV_NONE",		/* name */
44 	 FALSE,			/* partial_inplace */
45 	 0,			/* src_mask */
46 	 0,			/* dst_mask */
47 	 FALSE),		/* pcrel_offset */
48 
49   /* A 32 bit absolute relocation.  */
50   HOWTO (R_FRV_32,		/* type */
51 	 0,			/* rightshift */
52 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
53 	 32,			/* bitsize */
54 	 FALSE,			/* pc_relative */
55 	 0,			/* bitpos */
56 	 complain_overflow_bitfield, /* complain_on_overflow */
57 	 bfd_elf_generic_reloc,	/* special_function */
58 	 "R_FRV_32",		/* name */
59 	 FALSE,			/* partial_inplace */
60 	 0xffffffff,		/* src_mask */
61 	 0xffffffff,		/* dst_mask */
62 	 FALSE),		/* pcrel_offset */
63 
64   /* A 16 bit pc-relative relocation.  */
65   HOWTO (R_FRV_LABEL16,		/* type */
66 	 2,			/* rightshift */
67 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
68 	 16,			/* bitsize */
69 	 TRUE,			/* pc_relative */
70 	 0,			/* bitpos */
71 	 complain_overflow_signed, /* complain_on_overflow */
72 	 bfd_elf_generic_reloc,	/* special_function */
73 	 "R_FRV_LABEL16",	/* name */
74 	 FALSE,			/* partial_inplace */
75 	 0xffff,		/* src_mask */
76 	 0xffff,		/* dst_mask */
77 	 TRUE),			/* pcrel_offset */
78 
79   /* A 24-bit pc-relative relocation.  */
80   HOWTO (R_FRV_LABEL24,		/* type */
81 	 2,			/* rightshift */
82 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
83 	 26,			/* bitsize */
84 	 TRUE,			/* pc_relative */
85 	 0,			/* bitpos */
86 	 complain_overflow_bitfield, /* complain_on_overflow */
87 	 bfd_elf_generic_reloc,	/* special_function */
88 	 "R_FRV_LABEL24",	/* name */
89 	 FALSE,			/* partial_inplace */
90 	 0x7e03ffff,		/* src_mask */
91 	 0x7e03ffff,		/* dst_mask */
92 	 TRUE),			/* pcrel_offset */
93 
94   HOWTO (R_FRV_LO16,		/* type */
95 	 0,			/* rightshift */
96 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
97 	 16,			/* bitsize */
98 	 FALSE,			/* pc_relative */
99 	 0,			/* bitpos */
100 	 complain_overflow_dont, /* complain_on_overflow */
101 	 bfd_elf_generic_reloc,	/* special_function */
102 	 "R_FRV_LO16",		/* name */
103 	 FALSE,			/* partial_inplace */
104 	 0xffff,		/* src_mask */
105 	 0xffff,		/* dst_mask */
106 	 FALSE),		/* pcrel_offset */
107 
108   HOWTO (R_FRV_HI16,		/* type */
109 	 0,			/* rightshift */
110 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
111 	 16,			/* bitsize */
112 	 FALSE,			/* pc_relative */
113 	 0,			/* bitpos */
114 	 complain_overflow_dont, /* complain_on_overflow */
115 	 bfd_elf_generic_reloc,	/* special_function */
116 	 "R_FRV_HI16",		/* name */
117 	 FALSE,			/* partial_inplace */
118 	 0xffff,		/* src_mask */
119 	 0xffff,		/* dst_mask */
120 	 FALSE),		/* pcrel_offset */
121 
122   HOWTO (R_FRV_GPREL12,		/* type */
123 	 0,			/* rightshift */
124 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
125 	 12,			/* bitsize */
126 	 FALSE,			/* pc_relative */
127 	 0,			/* bitpos */
128 	 complain_overflow_dont, /* complain_on_overflow */
129 	 bfd_elf_generic_reloc,	/* special_function */
130 	 "R_FRV_GPREL12",	/* name */
131 	 FALSE,			/* partial_inplace */
132 	 0xfff,			/* src_mask */
133 	 0xfff,			/* dst_mask */
134 	 FALSE),		/* pcrel_offset */
135 
136   HOWTO (R_FRV_GPRELU12,	/* type */
137 	 0,			/* rightshift */
138 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
139 	 12,			/* bitsize */
140 	 FALSE,			/* pc_relative */
141 	 0,			/* bitpos */
142 	 complain_overflow_dont, /* complain_on_overflow */
143 	 bfd_elf_generic_reloc,	/* special_function */
144 	 "R_FRV_GPRELU12",	/* name */
145 	 FALSE,			/* partial_inplace */
146 	 0xfff,			/* src_mask */
147 	 0x3f03f,		/* dst_mask */
148 	 FALSE),		/* pcrel_offset */
149 
150   HOWTO (R_FRV_GPREL32,		/* type */
151 	 0,			/* rightshift */
152 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
153 	 32,			/* bitsize */
154 	 FALSE,			/* pc_relative */
155 	 0,			/* bitpos */
156 	 complain_overflow_dont, /* complain_on_overflow */
157 	 bfd_elf_generic_reloc,	/* special_function */
158 	 "R_FRV_GPREL32",	/* name */
159 	 FALSE,			/* partial_inplace */
160 	 0xffffffff,		/* src_mask */
161 	 0xffffffff,		/* dst_mask */
162 	 FALSE),		/* pcrel_offset */
163 
164   HOWTO (R_FRV_GPRELHI,		/* type */
165 	 0,			/* rightshift */
166 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
167 	 16,			/* bitsize */
168 	 FALSE,			/* pc_relative */
169 	 0,			/* bitpos */
170 	 complain_overflow_dont, /* complain_on_overflow */
171 	 bfd_elf_generic_reloc,	/* special_function */
172 	 "R_FRV_GPRELHI",	/* name */
173 	 FALSE,			/* partial_inplace */
174 	 0xffff,		/* src_mask */
175 	 0xffff,		/* dst_mask */
176 	 FALSE),		/* pcrel_offset */
177 
178   HOWTO (R_FRV_GPRELLO,		/* type */
179 	 0,			/* rightshift */
180 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
181 	 16,			/* bitsize */
182 	 FALSE,			/* pc_relative */
183 	 0,			/* bitpos */
184 	 complain_overflow_dont, /* complain_on_overflow */
185 	 bfd_elf_generic_reloc,	/* special_function */
186 	 "R_FRV_GPRELLO",	/* name */
187 	 FALSE,			/* partial_inplace */
188 	 0xffff,		/* src_mask */
189 	 0xffff,		/* dst_mask */
190 	 FALSE),		/* pcrel_offset */
191 
192   /* A 12-bit signed operand with the GOT offset for the address of
193      the symbol.  */
194   HOWTO (R_FRV_GOT12,		/* type */
195 	 0,			/* rightshift */
196 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
197 	 12,			/* bitsize */
198 	 FALSE,			/* pc_relative */
199 	 0,			/* bitpos */
200 	 complain_overflow_signed, /* complain_on_overflow */
201 	 bfd_elf_generic_reloc,	/* special_function */
202 	 "R_FRV_GOT12",		/* name */
203 	 FALSE,			/* partial_inplace */
204 	 0xfff,			/* src_mask */
205 	 0xfff,			/* dst_mask */
206 	 FALSE),		/* pcrel_offset */
207 
208   /* The upper 16 bits of the GOT offset for the address of the
209      symbol.  */
210   HOWTO (R_FRV_GOTHI,		/* type */
211 	 0,			/* rightshift */
212 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
213 	 16,			/* bitsize */
214 	 FALSE,			/* pc_relative */
215 	 0,			/* bitpos */
216 	 complain_overflow_dont, /* complain_on_overflow */
217 	 bfd_elf_generic_reloc,	/* special_function */
218 	 "R_FRV_GOTHI",		/* name */
219 	 FALSE,			/* partial_inplace */
220 	 0xffff,		/* src_mask */
221 	 0xffff,		/* dst_mask */
222 	 FALSE),		/* pcrel_offset */
223 
224   /* The lower 16 bits of the GOT offset for the address of the
225      symbol.  */
226   HOWTO (R_FRV_GOTLO,		/* type */
227 	 0,			/* rightshift */
228 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
229 	 16,			/* bitsize */
230 	 FALSE,			/* pc_relative */
231 	 0,			/* bitpos */
232 	 complain_overflow_dont, /* complain_on_overflow */
233 	 bfd_elf_generic_reloc,	/* special_function */
234 	 "R_FRV_GOTLO",		/* name */
235 	 FALSE,			/* partial_inplace */
236 	 0xffff,		/* src_mask */
237 	 0xffff,		/* dst_mask */
238 	 FALSE),		/* pcrel_offset */
239 
240   /* The 32-bit address of the canonical descriptor of a function.  */
241   HOWTO (R_FRV_FUNCDESC,	/* type */
242 	 0,			/* rightshift */
243 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
244 	 32,			/* bitsize */
245 	 FALSE,			/* pc_relative */
246 	 0,			/* bitpos */
247 	 complain_overflow_bitfield, /* complain_on_overflow */
248 	 bfd_elf_generic_reloc,	/* special_function */
249 	 "R_FRV_FUNCDESC",	/* name */
250 	 FALSE,			/* partial_inplace */
251 	 0xffffffff,		/* src_mask */
252 	 0xffffffff,		/* dst_mask */
253 	 FALSE),		/* pcrel_offset */
254 
255   /* A 12-bit signed operand with the GOT offset for the address of
256      canonical descriptor of a function.  */
257   HOWTO (R_FRV_FUNCDESC_GOT12,	/* type */
258 	 0,			/* rightshift */
259 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
260 	 12,			/* bitsize */
261 	 FALSE,			/* pc_relative */
262 	 0,			/* bitpos */
263 	 complain_overflow_signed, /* complain_on_overflow */
264 	 bfd_elf_generic_reloc,	/* special_function */
265 	 "R_FRV_FUNCDESC_GOT12", /* name */
266 	 FALSE,			/* partial_inplace */
267 	 0xfff,			/* src_mask */
268 	 0xfff,			/* dst_mask */
269 	 FALSE),		/* pcrel_offset */
270 
271   /* The upper 16 bits of the GOT offset for the address of the
272      canonical descriptor of a function.  */
273   HOWTO (R_FRV_FUNCDESC_GOTHI,	/* type */
274 	 0,			/* rightshift */
275 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
276 	 16,			/* bitsize */
277 	 FALSE,			/* pc_relative */
278 	 0,			/* bitpos */
279 	 complain_overflow_dont, /* complain_on_overflow */
280 	 bfd_elf_generic_reloc,	/* special_function */
281 	 "R_FRV_FUNCDESC_GOTHI", /* name */
282 	 FALSE,			/* partial_inplace */
283 	 0xffff,		/* src_mask */
284 	 0xffff,		/* dst_mask */
285 	 FALSE),		/* pcrel_offset */
286 
287   /* The lower 16 bits of the GOT offset for the address of the
288      canonical descriptor of a function.  */
289   HOWTO (R_FRV_FUNCDESC_GOTLO,	/* type */
290 	 0,			/* rightshift */
291 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
292 	 16,			/* bitsize */
293 	 FALSE,			/* pc_relative */
294 	 0,			/* bitpos */
295 	 complain_overflow_dont, /* complain_on_overflow */
296 	 bfd_elf_generic_reloc,	/* special_function */
297 	 "R_FRV_FUNCDESC_GOTLO", /* name */
298 	 FALSE,			/* partial_inplace */
299 	 0xffff,		/* src_mask */
300 	 0xffff,		/* dst_mask */
301 	 FALSE),		/* pcrel_offset */
302 
303   /* The 64-bit descriptor of a function.  */
304   HOWTO (R_FRV_FUNCDESC_VALUE,	/* type */
305 	 0,			/* rightshift */
306 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
307 	 64,			/* bitsize */
308 	 FALSE,			/* pc_relative */
309 	 0,			/* bitpos */
310 	 complain_overflow_bitfield, /* complain_on_overflow */
311 	 bfd_elf_generic_reloc,	/* special_function */
312 	 "R_FRV_FUNCDESC_VALUE", /* name */
313 	 FALSE,			/* partial_inplace */
314 	 0xffffffff,		/* src_mask */
315 	 0xffffffff,		/* dst_mask */
316 	 FALSE),		/* pcrel_offset */
317 
318   /* A 12-bit signed operand with the GOT offset for the address of
319      canonical descriptor of a function.  */
320   HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
321 	 0,			/* rightshift */
322 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
323 	 12,			/* bitsize */
324 	 FALSE,			/* pc_relative */
325 	 0,			/* bitpos */
326 	 complain_overflow_signed, /* complain_on_overflow */
327 	 bfd_elf_generic_reloc,	/* special_function */
328 	 "R_FRV_FUNCDESC_GOTOFF12", /* name */
329 	 FALSE,			/* partial_inplace */
330 	 0xfff,			/* src_mask */
331 	 0xfff,			/* dst_mask */
332 	 FALSE),		/* pcrel_offset */
333 
334   /* The upper 16 bits of the GOT offset for the address of the
335      canonical descriptor of a function.  */
336   HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
337 	 0,			/* rightshift */
338 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
339 	 16,			/* bitsize */
340 	 FALSE,			/* pc_relative */
341 	 0,			/* bitpos */
342 	 complain_overflow_dont, /* complain_on_overflow */
343 	 bfd_elf_generic_reloc,	/* special_function */
344 	 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
345 	 FALSE,			/* partial_inplace */
346 	 0xffff,		/* src_mask */
347 	 0xffff,		/* dst_mask */
348 	 FALSE),		/* pcrel_offset */
349 
350   /* The lower 16 bits of the GOT offset for the address of the
351      canonical descriptor of a function.  */
352   HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
353 	 0,			/* rightshift */
354 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
355 	 16,			/* bitsize */
356 	 FALSE,			/* pc_relative */
357 	 0,			/* bitpos */
358 	 complain_overflow_dont, /* complain_on_overflow */
359 	 bfd_elf_generic_reloc,	/* special_function */
360 	 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
361 	 FALSE,			/* partial_inplace */
362 	 0xffff,		/* src_mask */
363 	 0xffff,		/* dst_mask */
364 	 FALSE),		/* pcrel_offset */
365 
366   /* A 12-bit signed operand with the GOT offset for the address of
367      the symbol.  */
368   HOWTO (R_FRV_GOTOFF12,	/* type */
369 	 0,			/* rightshift */
370 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
371 	 12,			/* bitsize */
372 	 FALSE,			/* pc_relative */
373 	 0,			/* bitpos */
374 	 complain_overflow_signed, /* complain_on_overflow */
375 	 bfd_elf_generic_reloc,	/* special_function */
376 	 "R_FRV_GOTOFF12",	/* name */
377 	 FALSE,			/* partial_inplace */
378 	 0xfff,			/* src_mask */
379 	 0xfff,			/* dst_mask */
380 	 FALSE),		/* pcrel_offset */
381 
382   /* The upper 16 bits of the GOT offset for the address of the
383      symbol.  */
384   HOWTO (R_FRV_GOTOFFHI,	/* type */
385 	 0,			/* rightshift */
386 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
387 	 16,			/* bitsize */
388 	 FALSE,			/* pc_relative */
389 	 0,			/* bitpos */
390 	 complain_overflow_dont, /* complain_on_overflow */
391 	 bfd_elf_generic_reloc,	/* special_function */
392 	 "R_FRV_GOTOFFHI",	/* name */
393 	 FALSE,			/* partial_inplace */
394 	 0xffff,		/* src_mask */
395 	 0xffff,		/* dst_mask */
396 	 FALSE),		/* pcrel_offset */
397 
398   /* The lower 16 bits of the GOT offset for the address of the
399      symbol.  */
400   HOWTO (R_FRV_GOTOFFLO,	/* type */
401 	 0,			/* rightshift */
402 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
403 	 16,			/* bitsize */
404 	 FALSE,			/* pc_relative */
405 	 0,			/* bitpos */
406 	 complain_overflow_dont, /* complain_on_overflow */
407 	 bfd_elf_generic_reloc,	/* special_function */
408 	 "R_FRV_GOTOFFLO",	/* name */
409 	 FALSE,			/* partial_inplace */
410 	 0xffff,		/* src_mask */
411 	 0xffff,		/* dst_mask */
412 	 FALSE),		/* pcrel_offset */
413 
414   /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
415      a thread-local symbol.  If the symbol number is 0, it refers to
416      the module.  */
417   HOWTO (R_FRV_GETTLSOFF,	/* type */
418 	 2,			/* rightshift */
419 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
420 	 26,			/* bitsize */
421 	 TRUE,			/* pc_relative */
422 	 0,			/* bitpos */
423 	 complain_overflow_bitfield, /* complain_on_overflow */
424 	 bfd_elf_generic_reloc,	/* special_function */
425 	 "R_FRV_GETTLSOFF",	/* name */
426 	 FALSE,			/* partial_inplace */
427 	 0x7e03ffff,		/* src_mask */
428 	 0x7e03ffff,		/* dst_mask */
429 	 TRUE),			/* pcrel_offset */
430 
431   /* A 64-bit TLS descriptor for a symbol.  This relocation is only
432      valid as a REL, dynamic relocation.  */
433   HOWTO (R_FRV_TLSDESC_VALUE,	/* type */
434 	 0,			/* rightshift */
435 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
436 	 64,			/* bitsize */
437 	 FALSE,			/* pc_relative */
438 	 0,			/* bitpos */
439 	 complain_overflow_bitfield, /* complain_on_overflow */
440 	 bfd_elf_generic_reloc,	/* special_function */
441 	 "R_FRV_TLSDESC_VALUE", /* name */
442 	 FALSE,			/* partial_inplace */
443 	 0xffffffff,		/* src_mask */
444 	 0xffffffff,		/* dst_mask */
445 	 FALSE),		/* pcrel_offset */
446 
447   /* A 12-bit signed operand with the GOT offset for the TLS
448      descriptor of the symbol.  */
449   HOWTO (R_FRV_GOTTLSDESC12,	/* type */
450 	 0,			/* rightshift */
451 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
452 	 12,			/* bitsize */
453 	 FALSE,			/* pc_relative */
454 	 0,			/* bitpos */
455 	 complain_overflow_signed, /* complain_on_overflow */
456 	 bfd_elf_generic_reloc,	/* special_function */
457 	 "R_FRV_GOTTLSDESC12",	/* name */
458 	 FALSE,			/* partial_inplace */
459 	 0xfff,			/* src_mask */
460 	 0xfff,			/* dst_mask */
461 	 FALSE),		/* pcrel_offset */
462 
463   /* The upper 16 bits of the GOT offset for the TLS descriptor of the
464      symbol.  */
465   HOWTO (R_FRV_GOTTLSDESCHI,	/* type */
466 	 0,			/* rightshift */
467 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
468 	 16,			/* bitsize */
469 	 FALSE,			/* pc_relative */
470 	 0,			/* bitpos */
471 	 complain_overflow_dont, /* complain_on_overflow */
472 	 bfd_elf_generic_reloc,	/* special_function */
473 	 "R_FRV_GOTTLSDESCHI",	/* name */
474 	 FALSE,			/* partial_inplace */
475 	 0xffff,		/* src_mask */
476 	 0xffff,		/* dst_mask */
477 	 FALSE),		/* pcrel_offset */
478 
479   /* The lower 16 bits of the GOT offset for the TLS descriptor of the
480      symbol.  */
481   HOWTO (R_FRV_GOTTLSDESCLO,	/* type */
482 	 0,			/* rightshift */
483 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
484 	 16,			/* bitsize */
485 	 FALSE,			/* pc_relative */
486 	 0,			/* bitpos */
487 	 complain_overflow_dont, /* complain_on_overflow */
488 	 bfd_elf_generic_reloc,	/* special_function */
489 	 "R_FRV_GOTTLSDESCLO",	/* name */
490 	 FALSE,			/* partial_inplace */
491 	 0xffff,		/* src_mask */
492 	 0xffff,		/* dst_mask */
493 	 FALSE),		/* pcrel_offset */
494 
495   /* A 12-bit signed operand with the offset from the module base
496      address to the thread-local symbol address.  */
497   HOWTO (R_FRV_TLSMOFF12,	 /* type */
498 	 0,			/* rightshift */
499 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
500 	 12,			/* bitsize */
501 	 FALSE,			/* pc_relative */
502 	 0,			/* bitpos */
503 	 complain_overflow_signed, /* complain_on_overflow */
504 	 bfd_elf_generic_reloc,	/* special_function */
505 	 "R_FRV_TLSMOFF12",	/* name */
506 	 FALSE,			/* partial_inplace */
507 	 0xfff,			/* src_mask */
508 	 0xfff,			/* dst_mask */
509 	 FALSE),		/* pcrel_offset */
510 
511   /* The upper 16 bits of the offset from the module base address to
512      the thread-local symbol address.  */
513   HOWTO (R_FRV_TLSMOFFHI,	/* type */
514 	 0,			/* rightshift */
515 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
516 	 16,			/* bitsize */
517 	 FALSE,			/* pc_relative */
518 	 0,			/* bitpos */
519 	 complain_overflow_dont, /* complain_on_overflow */
520 	 bfd_elf_generic_reloc,	/* special_function */
521 	 "R_FRV_TLSMOFFHI",	/* name */
522 	 FALSE,			/* partial_inplace */
523 	 0xffff,		/* src_mask */
524 	 0xffff,		/* dst_mask */
525 	 FALSE),		/* pcrel_offset */
526 
527   /* The lower 16 bits of the offset from the module base address to
528      the thread-local symbol address.  */
529   HOWTO (R_FRV_TLSMOFFLO,	/* type */
530 	 0,			/* rightshift */
531 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
532 	 16,			/* bitsize */
533 	 FALSE,			/* pc_relative */
534 	 0,			/* bitpos */
535 	 complain_overflow_dont, /* complain_on_overflow */
536 	 bfd_elf_generic_reloc,	/* special_function */
537 	 "R_FRV_TLSMOFFLO",	/* name */
538 	 FALSE,			/* partial_inplace */
539 	 0xffff,		/* src_mask */
540 	 0xffff,		/* dst_mask */
541 	 FALSE),		/* pcrel_offset */
542 
543   /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
544      for a symbol.  */
545   HOWTO (R_FRV_GOTTLSOFF12,	/* type */
546 	 0,			/* rightshift */
547 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
548 	 12,			/* bitsize */
549 	 FALSE,			/* pc_relative */
550 	 0,			/* bitpos */
551 	 complain_overflow_signed, /* complain_on_overflow */
552 	 bfd_elf_generic_reloc,	/* special_function */
553 	 "R_FRV_GOTTLSOFF12",	/* name */
554 	 FALSE,			/* partial_inplace */
555 	 0xfff,			/* src_mask */
556 	 0xfff,			/* dst_mask */
557 	 FALSE),		/* pcrel_offset */
558 
559   /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
560      symbol.  */
561   HOWTO (R_FRV_GOTTLSOFFHI,	/* type */
562 	 0,			/* rightshift */
563 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
564 	 16,			/* bitsize */
565 	 FALSE,			/* pc_relative */
566 	 0,			/* bitpos */
567 	 complain_overflow_dont, /* complain_on_overflow */
568 	 bfd_elf_generic_reloc,	/* special_function */
569 	 "R_FRV_GOTTLSOFFHI",	/* name */
570 	 FALSE,			/* partial_inplace */
571 	 0xffff,		/* src_mask */
572 	 0xffff,		/* dst_mask */
573 	 FALSE),		/* pcrel_offset */
574 
575   /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
576      symbol.  */
577   HOWTO (R_FRV_GOTTLSOFFLO,	/* type */
578 	 0,			/* rightshift */
579 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
580 	 16,			/* bitsize */
581 	 FALSE,			/* pc_relative */
582 	 0,			/* bitpos */
583 	 complain_overflow_dont, /* complain_on_overflow */
584 	 bfd_elf_generic_reloc,	/* special_function */
585 	 "R_FRV_GOTTLSOFFLO",	/* name */
586 	 FALSE,			/* partial_inplace */
587 	 0xffff,		/* src_mask */
588 	 0xffff,		/* dst_mask */
589 	 FALSE),		/* pcrel_offset */
590 
591   /* The 32-bit offset from the thread pointer (not the module base
592      address) to a thread-local symbol.  */
593   HOWTO (R_FRV_TLSOFF,		/* type */
594 	 0,			/* rightshift */
595 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
596 	 32,			/* bitsize */
597 	 FALSE,			/* pc_relative */
598 	 0,			/* bitpos */
599 	 complain_overflow_dont, /* complain_on_overflow */
600 	 bfd_elf_generic_reloc,	/* special_function */
601 	 "R_FRV_TLSOFF",	/* name */
602 	 FALSE,			/* partial_inplace */
603 	 0xffffffff,		/* src_mask */
604 	 0xffffffff,		/* dst_mask */
605 	 FALSE),		/* pcrel_offset */
606 
607   /* An annotation for linker relaxation, that denotes the
608      symbol+addend whose TLS descriptor is referenced by the sum of
609      the two input registers of an ldd instruction.  */
610   HOWTO (R_FRV_TLSDESC_RELAX,	/* type */
611 	 0,			/* rightshift */
612 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
613 	 0,			/* bitsize */
614 	 FALSE,			/* pc_relative */
615 	 0,			/* bitpos */
616 	 complain_overflow_dont, /* complain_on_overflow */
617 	 bfd_elf_generic_reloc,	/* special_function */
618 	 "R_FRV_TLSDESC_RELAX",	/* name */
619 	 FALSE,			/* partial_inplace */
620 	 0,			/* src_mask */
621 	 0,			/* dst_mask */
622 	 FALSE),		/* pcrel_offset */
623 
624   /* An annotation for linker relaxation, that denotes the
625      symbol+addend whose TLS resolver entry point is given by the sum
626      of the two register operands of an calll instruction.  */
627   HOWTO (R_FRV_GETTLSOFF_RELAX,	/* type */
628 	 0,			/* rightshift */
629 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
630 	 0,			/* bitsize */
631 	 FALSE,			/* pc_relative */
632 	 0,			/* bitpos */
633 	 complain_overflow_dont, /* complain_on_overflow */
634 	 bfd_elf_generic_reloc,	/* special_function */
635 	 "R_FRV_GETTLSOFF_RELAX", /* name */
636 	 FALSE,			/* partial_inplace */
637 	 0,			/* src_mask */
638 	 0,			/* dst_mask */
639 	 FALSE),		/* pcrel_offset */
640 
641   /* An annotation for linker relaxation, that denotes the
642      symbol+addend whose TLS offset GOT entry is given by the sum of
643      the two input registers of an ld instruction.  */
644   HOWTO (R_FRV_TLSOFF_RELAX,	/* type */
645 	 0,			/* rightshift */
646 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
647 	 0,			/* bitsize */
648 	 FALSE,			/* pc_relative */
649 	 0,			/* bitpos */
650 	 complain_overflow_bitfield, /* complain_on_overflow */
651 	 bfd_elf_generic_reloc,	/* special_function */
652 	 "R_FRV_TLSOFF_RELAX",	/* name */
653 	 FALSE,			/* partial_inplace */
654 	 0,			/* src_mask */
655 	 0,			/* dst_mask */
656 	 FALSE),		/* pcrel_offset */
657 
658   /* A 32-bit offset from the module base address to
659      the thread-local symbol address.  */
660   HOWTO (R_FRV_TLSMOFF,		/* type */
661 	 0,			/* rightshift */
662 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
663 	 32,			/* bitsize */
664 	 FALSE,			/* pc_relative */
665 	 0,			/* bitpos */
666 	 complain_overflow_dont, /* complain_on_overflow */
667 	 bfd_elf_generic_reloc,	/* special_function */
668 	 "R_FRV_TLSMOFF",	/* name */
669 	 FALSE,			/* partial_inplace */
670 	 0xffffffff,		/* src_mask */
671 	 0xffffffff,		/* dst_mask */
672 	 FALSE),		/* pcrel_offset */
673 };
674 
675 /* GNU extension to record C++ vtable hierarchy.  */
676 static reloc_howto_type elf32_frv_vtinherit_howto =
677   HOWTO (R_FRV_GNU_VTINHERIT,	/* type */
678 	 0,			/* rightshift */
679 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
680 	 0,			/* bitsize */
681 	 FALSE,			/* pc_relative */
682 	 0,			/* bitpos */
683 	 complain_overflow_dont, /* complain_on_overflow */
684 	 NULL,			/* special_function */
685 	 "R_FRV_GNU_VTINHERIT", /* name */
686 	 FALSE,			/* partial_inplace */
687 	 0,			/* src_mask */
688 	 0,			/* dst_mask */
689 	 FALSE);		/* pcrel_offset */
690 
691   /* GNU extension to record C++ vtable member usage.  */
692 static reloc_howto_type elf32_frv_vtentry_howto =
693   HOWTO (R_FRV_GNU_VTENTRY,	/* type */
694 	 0,			/* rightshift */
695 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
696 	 0,			/* bitsize */
697 	 FALSE,			/* pc_relative */
698 	 0,			/* bitpos */
699 	 complain_overflow_dont, /* complain_on_overflow */
700 	 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
701 	 "R_FRV_GNU_VTENTRY",	/* name */
702 	 FALSE,			/* partial_inplace */
703 	 0,			/* src_mask */
704 	 0,			/* dst_mask */
705 	 FALSE);		/* pcrel_offset */
706 
707 /* The following 3 relocations are REL.  The only difference to the
708    entries in the table above are that partial_inplace is TRUE.  */
709 static reloc_howto_type elf32_frv_rel_32_howto =
710   HOWTO (R_FRV_32,		/* type */
711 	 0,			/* rightshift */
712 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
713 	 32,			/* bitsize */
714 	 FALSE,			/* pc_relative */
715 	 0,			/* bitpos */
716 	 complain_overflow_bitfield, /* complain_on_overflow */
717 	 bfd_elf_generic_reloc,	/* special_function */
718 	 "R_FRV_32",		/* name */
719 	 TRUE,			/* partial_inplace */
720 	 0xffffffff,		/* src_mask */
721 	 0xffffffff,		/* dst_mask */
722 	 FALSE);		/* pcrel_offset */
723 
724 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
725   HOWTO (R_FRV_FUNCDESC,	/* type */
726 	 0,			/* rightshift */
727 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
728 	 32,			/* bitsize */
729 	 FALSE,			/* pc_relative */
730 	 0,			/* bitpos */
731 	 complain_overflow_bitfield, /* complain_on_overflow */
732 	 bfd_elf_generic_reloc,	/* special_function */
733 	 "R_FRV_FUNCDESC",	/* name */
734 	 TRUE,			/* partial_inplace */
735 	 0xffffffff,		/* src_mask */
736 	 0xffffffff,		/* dst_mask */
737 	 FALSE);		/* pcrel_offset */
738 
739 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
740   HOWTO (R_FRV_FUNCDESC_VALUE,	/* type */
741 	 0,			/* rightshift */
742 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
743 	 64,			/* bitsize */
744 	 FALSE,			/* pc_relative */
745 	 0,			/* bitpos */
746 	 complain_overflow_bitfield, /* complain_on_overflow */
747 	 bfd_elf_generic_reloc,	/* special_function */
748 	 "R_FRV_FUNCDESC_VALUE", /* name */
749 	 TRUE,			/* partial_inplace */
750 	 0xffffffff,		/* src_mask */
751 	 0xffffffff,		/* dst_mask */
752 	 FALSE);		/* pcrel_offset */
753 
754 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
755   /* A 64-bit TLS descriptor for a symbol.  The first word resolves to
756      an entry point, and the second resolves to a special argument.
757      If the symbol turns out to be in static TLS, the entry point is a
758      return instruction, and the special argument is the TLS offset
759      for the symbol.  If it's in dynamic TLS, the entry point is a TLS
760      offset resolver, and the special argument is a pointer to a data
761      structure allocated by the dynamic loader, containing the GOT
762      address for the offset resolver, the module id, the offset within
763      the module, and anything else the TLS offset resolver might need
764      to determine the TLS offset for the symbol in the running
765      thread.  */
766   HOWTO (R_FRV_TLSDESC_VALUE,	/* type */
767 	 0,			/* rightshift */
768 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
769 	 64,			/* bitsize */
770 	 FALSE,			/* pc_relative */
771 	 0,			/* bitpos */
772 	 complain_overflow_bitfield, /* complain_on_overflow */
773 	 bfd_elf_generic_reloc,	/* special_function */
774 	 "R_FRV_TLSDESC_VALUE", /* name */
775 	 TRUE,			/* partial_inplace */
776 	 0xffffffff,		/* src_mask */
777 	 0xffffffff,		/* dst_mask */
778 	 FALSE);		/* pcrel_offset */
779 
780 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
781   /* The 32-bit offset from the thread pointer (not the module base
782      address) to a thread-local symbol.  */
783   HOWTO (R_FRV_TLSOFF,		/* type */
784 	 0,			/* rightshift */
785 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
786 	 32,			/* bitsize */
787 	 FALSE,			/* pc_relative */
788 	 0,			/* bitpos */
789 	 complain_overflow_bitfield, /* complain_on_overflow */
790 	 bfd_elf_generic_reloc,	/* special_function */
791 	 "R_FRV_TLSOFF",	/* name */
792 	 TRUE,			/* partial_inplace */
793 	 0xffffffff,		/* src_mask */
794 	 0xffffffff,		/* dst_mask */
795 	 FALSE);		/* pcrel_offset */
796 
797 
798 
799 extern const bfd_target frv_elf32_fdpic_vec;
800 #define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
801 
802 /* An extension of the elf hash table data structure, containing some
803    additional FRV-specific data.  */
804 struct frvfdpic_elf_link_hash_table
805 {
806   struct elf_link_hash_table elf;
807 
808   /* A pointer to the .got section.  */
809   asection *sgot;
810   /* A pointer to the .rel.got section.  */
811   asection *sgotrel;
812   /* A pointer to the .rofixup section.  */
813   asection *sgotfixup;
814   /* A pointer to the .plt section.  */
815   asection *splt;
816   /* A pointer to the .rel.plt section.  */
817   asection *spltrel;
818   /* GOT base offset.  */
819   bfd_vma got0;
820   /* Location of the first non-lazy PLT entry, i.e., the number of
821      bytes taken by lazy PLT entries.  If locally-bound TLS
822      descriptors require a ret instruction, it will be placed at this
823      offset.  */
824   bfd_vma plt0;
825   /* A hash table holding information about which symbols were
826      referenced with which PIC-related relocations.  */
827   struct htab *relocs_info;
828   /* Summary reloc information collected by
829      _frvfdpic_count_got_plt_entries.  */
830   struct _frvfdpic_dynamic_got_info *g;
831 };
832 
833 /* Get the FRV ELF linker hash table from a link_info structure.  */
834 
835 #define frvfdpic_hash_table(p) \
836   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
837   == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
838 
839 #define frvfdpic_got_section(info) \
840   (frvfdpic_hash_table (info)->sgot)
841 #define frvfdpic_gotrel_section(info) \
842   (frvfdpic_hash_table (info)->sgotrel)
843 #define frvfdpic_gotfixup_section(info) \
844   (frvfdpic_hash_table (info)->sgotfixup)
845 #define frvfdpic_plt_section(info) \
846   (frvfdpic_hash_table (info)->splt)
847 #define frvfdpic_pltrel_section(info) \
848   (frvfdpic_hash_table (info)->spltrel)
849 #define frvfdpic_relocs_info(info) \
850   (frvfdpic_hash_table (info)->relocs_info)
851 #define frvfdpic_got_initial_offset(info) \
852   (frvfdpic_hash_table (info)->got0)
853 #define frvfdpic_plt_initial_offset(info) \
854   (frvfdpic_hash_table (info)->plt0)
855 #define frvfdpic_dynamic_got_plt_info(info) \
856   (frvfdpic_hash_table (info)->g)
857 
858 /* Currently it's the same, but if some day we have a reason to change
859    it, we'd better be using a different macro.
860 
861    FIXME: if there's any TLS PLT entry that uses local-exec or
862    initial-exec models, we could use the ret at the end of any of them
863    instead of adding one more.  */
864 #define frvfdpic_plt_tls_ret_offset(info) \
865   (frvfdpic_plt_initial_offset (info))
866 
867 /* The name of the dynamic interpreter.  This is put in the .interp
868    section.  */
869 
870 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
871 
872 #define DEFAULT_STACK_SIZE 0x20000
873 
874 /* This structure is used to collect the number of entries present in
875    each addressable range of the got.  */
876 struct _frvfdpic_dynamic_got_info
877 {
878   /* Several bits of information about the current link.  */
879   struct bfd_link_info *info;
880   /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
881      ranges.  */
882   bfd_vma got12, gotlos, gothilo;
883   /* Total GOT size needed for function descriptor entries within the 12-,
884      16- or 32-bit ranges.  */
885   bfd_vma fd12, fdlos, fdhilo;
886   /* Total GOT size needed by function descriptor entries referenced
887      in PLT entries, that would be profitable to place in offsets
888      close to the PIC register.  */
889   bfd_vma fdplt;
890   /* Total PLT size needed by lazy PLT entries.  */
891   bfd_vma lzplt;
892   /* Total GOT size needed for TLS descriptor entries within the 12-,
893      16- or 32-bit ranges.  */
894   bfd_vma tlsd12, tlsdlos, tlsdhilo;
895   /* Total GOT size needed by TLS descriptors referenced in PLT
896      entries, that would be profitable to place in offers close to the
897      PIC register.  */
898   bfd_vma tlsdplt;
899   /* Total PLT size needed by TLS lazy PLT entries.  */
900   bfd_vma tlslzplt;
901   /* Number of relocations carried over from input object files.  */
902   unsigned long relocs;
903   /* Number of fixups introduced by relocations in input object files.  */
904   unsigned long fixups;
905   /* The number of fixups that reference the ret instruction added to
906      the PLT for locally-resolved TLS descriptors.  */
907   unsigned long tls_ret_refs;
908 };
909 
910 /* This structure is used to assign offsets to got entries, function
911    descriptors, plt entries and lazy plt entries.  */
912 
913 struct _frvfdpic_dynamic_got_plt_info
914 {
915   /* Summary information collected with _frvfdpic_count_got_plt_entries.  */
916   struct _frvfdpic_dynamic_got_info g;
917 
918   /* For each addressable range, we record a MAX (positive) and MIN
919      (negative) value.  CUR is used to assign got entries, and it's
920      incremented from an initial positive value to MAX, then from MIN
921      to FDCUR (unless FDCUR wraps around first).  FDCUR is used to
922      assign function descriptors, and it's decreased from an initial
923      non-positive value to MIN, then from MAX down to CUR (unless CUR
924      wraps around first).  All of MIN, MAX, CUR and FDCUR always point
925      to even words.  ODD, if non-zero, indicates an odd word to be
926      used for the next got entry, otherwise CUR is used and
927      incremented by a pair of words, wrapping around when it reaches
928      MAX.  FDCUR is decremented (and wrapped) before the next function
929      descriptor is chosen.  FDPLT indicates the number of remaining
930      slots that can be used for function descriptors used only by PLT
931      entries.
932 
933      TMAX, TMIN and TCUR are used to assign TLS descriptors.  TCUR
934      starts as MAX, and grows up to TMAX, then wraps around to TMIN
935      and grows up to MIN.  TLSDPLT indicates the number of remaining
936      slots that can be used for TLS descriptors used only by TLS PLT
937      entries.  */
938   struct _frvfdpic_dynamic_got_alloc_data
939   {
940     bfd_signed_vma max, cur, odd, fdcur, min;
941     bfd_signed_vma tmax, tcur, tmin;
942     bfd_vma fdplt, tlsdplt;
943   } got12, gotlos, gothilo;
944 };
945 
946 /* Create an FRV ELF linker hash table.  */
947 
948 static struct bfd_link_hash_table *
frvfdpic_elf_link_hash_table_create(bfd * abfd)949 frvfdpic_elf_link_hash_table_create (bfd *abfd)
950 {
951   struct frvfdpic_elf_link_hash_table *ret;
952   bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
953 
954   ret = bfd_zmalloc (amt);
955   if (ret == NULL)
956     return NULL;
957 
958   if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
959 				      _bfd_elf_link_hash_newfunc,
960 				      sizeof (struct elf_link_hash_entry),
961 				      FRV_ELF_DATA))
962     {
963       free (ret);
964       return NULL;
965     }
966 
967   return &ret->elf.root;
968 }
969 
970 /* Decide whether a reference to a symbol can be resolved locally or
971    not.  If the symbol is protected, we want the local address, but
972    its function descriptor must be assigned by the dynamic linker.  */
973 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
974   (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
975    || ! elf_hash_table (INFO)->dynamic_sections_created)
976 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
977   ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
978 
979 /* This structure collects information on what kind of GOT, PLT or
980    function descriptors are required by relocations that reference a
981    certain symbol.  */
982 struct frvfdpic_relocs_info
983 {
984   /* The index of the symbol, as stored in the relocation r_info, if
985      we have a local symbol; -1 otherwise.  */
986   long symndx;
987   union
988   {
989     /* The input bfd in which the symbol is defined, if it's a local
990        symbol.  */
991     bfd *abfd;
992     /* If symndx == -1, the hash table entry corresponding to a global
993        symbol (even if it turns out to bind locally, in which case it
994        should ideally be replaced with section's symndx + addend).  */
995     struct elf_link_hash_entry *h;
996   } d;
997   /* The addend of the relocation that references the symbol.  */
998   bfd_vma addend;
999 
1000   /* The fields above are used to identify an entry.  The fields below
1001      contain information on how an entry is used and, later on, which
1002      locations it was assigned.  */
1003   /* The following 3 fields record whether the symbol+addend above was
1004      ever referenced with a GOT relocation.  The 12 suffix indicates a
1005      GOT12 relocation; los is used for GOTLO relocations that are not
1006      matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1007      pairs.  */
1008   unsigned got12:1;
1009   unsigned gotlos:1;
1010   unsigned gothilo:1;
1011   /* Whether a FUNCDESC relocation references symbol+addend.  */
1012   unsigned fd:1;
1013   /* Whether a FUNCDESC_GOT relocation references symbol+addend.  */
1014   unsigned fdgot12:1;
1015   unsigned fdgotlos:1;
1016   unsigned fdgothilo:1;
1017   /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend.  */
1018   unsigned fdgoff12:1;
1019   unsigned fdgofflos:1;
1020   unsigned fdgoffhilo:1;
1021   /* Whether a GETTLSOFF relocation references symbol+addend.  */
1022   unsigned tlsplt:1;
1023   /* FIXME: we should probably add tlspltdesc, tlspltoff and
1024      tlspltimm, to tell what kind of TLS PLT entry we're generating.
1025      We might instead just pre-compute flags telling whether the
1026      object is suitable for local exec, initial exec or general
1027      dynamic addressing, and use that all over the place.  We could
1028      also try to do a better job of merging TLSOFF and TLSDESC entries
1029      in main executables, but perhaps we can get rid of TLSDESC
1030      entirely in them instead.  */
1031   /* Whether a GOTTLSDESC relocation references symbol+addend.  */
1032   unsigned tlsdesc12:1;
1033   unsigned tlsdesclos:1;
1034   unsigned tlsdeschilo:1;
1035   /* Whether a GOTTLSOFF relocation references symbol+addend.  */
1036   unsigned tlsoff12:1;
1037   unsigned tlsofflos:1;
1038   unsigned tlsoffhilo:1;
1039   /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1040      GOTOFFHI relocations.  The addend doesn't really matter, since we
1041      envision that this will only be used to check whether the symbol
1042      is mapped to the same segment as the got.  */
1043   unsigned gotoff:1;
1044   /* Whether symbol+addend is referenced by a LABEL24 relocation.  */
1045   unsigned call:1;
1046   /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1047      relocation.  */
1048   unsigned sym:1;
1049   /* Whether we need a PLT entry for a symbol.  Should be implied by
1050      something like:
1051      (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h))  */
1052   unsigned plt:1;
1053   /* Whether a function descriptor should be created in this link unit
1054      for symbol+addend.  Should be implied by something like:
1055      (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1056       || ((fd || fdgot12 || fdgotlos || fdgothilo)
1057           && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h))))  */
1058   unsigned privfd:1;
1059   /* Whether a lazy PLT entry is needed for this symbol+addend.
1060      Should be implied by something like:
1061      (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1062       && ! (info->flags & DF_BIND_NOW))  */
1063   unsigned lazyplt:1;
1064   /* Whether we've already emitted GOT relocations and PLT entries as
1065      needed for this symbol.  */
1066   unsigned done:1;
1067 
1068   /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1069      R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1070      symbol+addend.  */
1071   unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1072 
1073   /* The number of .rofixups entries and dynamic relocations allocated
1074      for this symbol, minus any that might have already been used.  */
1075   unsigned fixups, dynrelocs;
1076 
1077   /* The offsets of the GOT entries assigned to symbol+addend, to the
1078      function descriptor's address, and to a function descriptor,
1079      respectively.  Should be zero if unassigned.  The offsets are
1080      counted from the value that will be assigned to the PIC register,
1081      not from the beginning of the .got section.  */
1082   bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1083   /* The offsets of the PLT entries assigned to symbol+addend,
1084      non-lazy and lazy, respectively.  If unassigned, should be
1085      (bfd_vma)-1.  */
1086   bfd_vma plt_entry, lzplt_entry;
1087   /* The offsets of the GOT entries for TLS offset and TLS descriptor.  */
1088   bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1089   /* The offset of the TLS offset PLT entry.  */
1090   bfd_vma tlsplt_entry;
1091 };
1092 
1093 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry.  */
1094 static hashval_t
frvfdpic_relocs_info_hash(const void * entry_)1095 frvfdpic_relocs_info_hash (const void *entry_)
1096 {
1097   const struct frvfdpic_relocs_info *entry = entry_;
1098 
1099   return (entry->symndx == -1
1100 	  ? (long) entry->d.h->root.root.hash
1101 	  : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1102 }
1103 
1104 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1105    identical.  */
1106 static int
frvfdpic_relocs_info_eq(const void * entry1,const void * entry2)1107 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1108 {
1109   const struct frvfdpic_relocs_info *e1 = entry1;
1110   const struct frvfdpic_relocs_info *e2 = entry2;
1111 
1112   return e1->symndx == e2->symndx && e1->addend == e2->addend
1113     && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1114 }
1115 
1116 /* Find or create an entry in a hash table HT that matches the key
1117    fields of the given ENTRY.  If it's not found, memory for a new
1118    entry is allocated in ABFD's obstack.  */
1119 static struct frvfdpic_relocs_info *
frvfdpic_relocs_info_find(struct htab * ht,bfd * abfd,const struct frvfdpic_relocs_info * entry,enum insert_option insert)1120 frvfdpic_relocs_info_find (struct htab *ht,
1121 			   bfd *abfd,
1122 			   const struct frvfdpic_relocs_info *entry,
1123 			   enum insert_option insert)
1124 {
1125   struct frvfdpic_relocs_info **loc =
1126     (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1127 
1128   if (! loc)
1129     return NULL;
1130 
1131   if (*loc)
1132     return *loc;
1133 
1134   *loc = bfd_zalloc (abfd, sizeof (**loc));
1135 
1136   if (! *loc)
1137     return *loc;
1138 
1139   (*loc)->symndx = entry->symndx;
1140   (*loc)->d = entry->d;
1141   (*loc)->addend = entry->addend;
1142   (*loc)->plt_entry = (bfd_vma)-1;
1143   (*loc)->lzplt_entry = (bfd_vma)-1;
1144   (*loc)->tlsplt_entry = (bfd_vma)-1;
1145 
1146   return *loc;
1147 }
1148 
1149 /* Obtain the address of the entry in HT associated with H's symbol +
1150    addend, creating a new entry if none existed.  ABFD is only used
1151    for memory allocation purposes.  */
1152 inline static struct frvfdpic_relocs_info *
frvfdpic_relocs_info_for_global(struct htab * ht,bfd * abfd,struct elf_link_hash_entry * h,bfd_vma addend,enum insert_option insert)1153 frvfdpic_relocs_info_for_global (struct htab *ht,
1154 				 bfd *abfd,
1155 				 struct elf_link_hash_entry *h,
1156 				 bfd_vma addend,
1157 				 enum insert_option insert)
1158 {
1159   struct frvfdpic_relocs_info entry;
1160 
1161   entry.symndx = -1;
1162   entry.d.h = h;
1163   entry.addend = addend;
1164 
1165   return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1166 }
1167 
1168 /* Obtain the address of the entry in HT associated with the SYMNDXth
1169    local symbol of the input bfd ABFD, plus the addend, creating a new
1170    entry if none existed.  */
1171 inline static struct frvfdpic_relocs_info *
frvfdpic_relocs_info_for_local(struct htab * ht,bfd * abfd,long symndx,bfd_vma addend,enum insert_option insert)1172 frvfdpic_relocs_info_for_local (struct htab *ht,
1173 				bfd *abfd,
1174 				long symndx,
1175 				bfd_vma addend,
1176 				enum insert_option insert)
1177 {
1178   struct frvfdpic_relocs_info entry;
1179 
1180   entry.symndx = symndx;
1181   entry.d.abfd = abfd;
1182   entry.addend = addend;
1183 
1184   return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1185 }
1186 
1187 /* Merge fields set by check_relocs() of two entries that end up being
1188    mapped to the same (presumably global) symbol.  */
1189 
1190 inline static void
frvfdpic_pic_merge_early_relocs_info(struct frvfdpic_relocs_info * e2,struct frvfdpic_relocs_info const * e1)1191 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1192 				      struct frvfdpic_relocs_info const *e1)
1193 {
1194   e2->got12 |= e1->got12;
1195   e2->gotlos |= e1->gotlos;
1196   e2->gothilo |= e1->gothilo;
1197   e2->fd |= e1->fd;
1198   e2->fdgot12 |= e1->fdgot12;
1199   e2->fdgotlos |= e1->fdgotlos;
1200   e2->fdgothilo |= e1->fdgothilo;
1201   e2->fdgoff12 |= e1->fdgoff12;
1202   e2->fdgofflos |= e1->fdgofflos;
1203   e2->fdgoffhilo |= e1->fdgoffhilo;
1204   e2->tlsplt |= e1->tlsplt;
1205   e2->tlsdesc12 |= e1->tlsdesc12;
1206   e2->tlsdesclos |= e1->tlsdesclos;
1207   e2->tlsdeschilo |= e1->tlsdeschilo;
1208   e2->tlsoff12 |= e1->tlsoff12;
1209   e2->tlsofflos |= e1->tlsofflos;
1210   e2->tlsoffhilo |= e1->tlsoffhilo;
1211   e2->gotoff |= e1->gotoff;
1212   e2->call |= e1->call;
1213   e2->sym |= e1->sym;
1214 }
1215 
1216 /* Every block of 65535 lazy PLT entries shares a single call to the
1217    resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1218    32767, counting from 0).  All other lazy PLT entries branch to it
1219    in a single instruction.  */
1220 
1221 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1222 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1223 
1224 /* Add a dynamic relocation to the SRELOC section.  */
1225 
1226 inline static bfd_vma
_frvfdpic_add_dyn_reloc(bfd * output_bfd,asection * sreloc,bfd_vma offset,int reloc_type,long dynindx,bfd_vma addend,struct frvfdpic_relocs_info * entry)1227 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1228 			 int reloc_type, long dynindx, bfd_vma addend,
1229 			 struct frvfdpic_relocs_info *entry)
1230 {
1231   Elf_Internal_Rela outrel;
1232   bfd_vma reloc_offset;
1233 
1234   outrel.r_offset = offset;
1235   outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1236   outrel.r_addend = addend;
1237 
1238   reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1239   BFD_ASSERT (reloc_offset < sreloc->size);
1240   bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1241 			    sreloc->contents + reloc_offset);
1242   sreloc->reloc_count++;
1243 
1244   /* If the entry's index is zero, this relocation was probably to a
1245      linkonce section that got discarded.  We reserved a dynamic
1246      relocation, but it was for another entry than the one we got at
1247      the time of emitting the relocation.  Unfortunately there's no
1248      simple way for us to catch this situation, since the relocation
1249      is cleared right before calling relocate_section, at which point
1250      we no longer know what the relocation used to point to.  */
1251   if (entry->symndx)
1252     {
1253       BFD_ASSERT (entry->dynrelocs > 0);
1254       entry->dynrelocs--;
1255     }
1256 
1257   return reloc_offset;
1258 }
1259 
1260 /* Add a fixup to the ROFIXUP section.  */
1261 
1262 static bfd_vma
_frvfdpic_add_rofixup(bfd * output_bfd,asection * rofixup,bfd_vma offset,struct frvfdpic_relocs_info * entry)1263 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1264 		       struct frvfdpic_relocs_info *entry)
1265 {
1266   bfd_vma fixup_offset;
1267 
1268   if (rofixup->flags & SEC_EXCLUDE)
1269     return -1;
1270 
1271   fixup_offset = rofixup->reloc_count * 4;
1272   if (rofixup->contents)
1273     {
1274       BFD_ASSERT (fixup_offset < rofixup->size);
1275       bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1276     }
1277   rofixup->reloc_count++;
1278 
1279   if (entry && entry->symndx)
1280     {
1281       /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1282 	 above.  */
1283       BFD_ASSERT (entry->fixups > 0);
1284       entry->fixups--;
1285     }
1286 
1287   return fixup_offset;
1288 }
1289 
1290 /* Find the segment number in which OSEC, and output section, is
1291    located.  */
1292 
1293 static unsigned
_frvfdpic_osec_to_segment(bfd * output_bfd,asection * osec)1294 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1295 {
1296   Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1297 
1298   return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1299 }
1300 
1301 inline static bfd_boolean
_frvfdpic_osec_readonly_p(bfd * output_bfd,asection * osec)1302 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1303 {
1304   unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1305 
1306   return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1307 }
1308 
1309 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1310 
1311 /* Return the base VMA address which should be subtracted from real addresses
1312    when resolving TLSMOFF relocation.
1313    This is PT_TLS segment p_vaddr, plus the 2048-16 bias.  */
1314 
1315 static bfd_vma
tls_biased_base(struct bfd_link_info * info)1316 tls_biased_base (struct bfd_link_info *info)
1317 {
1318   /* If tls_sec is NULL, we should have signalled an error already.  */
1319   if (elf_hash_table (info)->tls_sec == NULL)
1320     return FRVFDPIC_TLS_BIAS;
1321   return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1322 }
1323 
1324 /* Generate relocations for GOT entries, function descriptors, and
1325    code for PLT and lazy PLT entries.  */
1326 
1327 inline static bfd_boolean
_frvfdpic_emit_got_relocs_plt_entries(struct frvfdpic_relocs_info * entry,bfd * output_bfd,struct bfd_link_info * info,asection * sec,Elf_Internal_Sym * sym,bfd_vma addend)1328 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1329 				       bfd *output_bfd,
1330 				       struct bfd_link_info *info,
1331 				       asection *sec,
1332 				       Elf_Internal_Sym *sym,
1333 				       bfd_vma addend)
1334 
1335 {
1336   bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1337   int dynindx = -1;
1338 
1339   if (entry->done)
1340     return TRUE;
1341   entry->done = 1;
1342 
1343   if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1344       || entry->tlsoff_entry || entry->tlsdesc_entry)
1345     {
1346       /* If the symbol is dynamic, consider it for dynamic
1347 	 relocations, otherwise decay to section + offset.  */
1348       if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1349 	dynindx = entry->d.h->dynindx;
1350       else
1351 	{
1352 	  if (sec
1353 	      && sec->output_section
1354 	      && ! bfd_is_abs_section (sec->output_section)
1355 	      && ! bfd_is_und_section (sec->output_section))
1356 	    dynindx = elf_section_data (sec->output_section)->dynindx;
1357 	  else
1358 	    dynindx = 0;
1359 	}
1360     }
1361 
1362   /* Generate relocation for GOT entry pointing to the symbol.  */
1363   if (entry->got_entry)
1364     {
1365       int idx = dynindx;
1366       bfd_vma ad = addend;
1367 
1368       /* If the symbol is dynamic but binds locally, use
1369 	 section+offset.  */
1370       if (sec && (entry->symndx != -1
1371 		  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1372 	{
1373 	  if (entry->symndx == -1)
1374 	    ad += entry->d.h->root.u.def.value;
1375 	  else
1376 	    ad += sym->st_value;
1377 	  ad += sec->output_offset;
1378 	  if (sec->output_section && elf_section_data (sec->output_section))
1379 	    idx = elf_section_data (sec->output_section)->dynindx;
1380 	  else
1381 	    idx = 0;
1382 	}
1383 
1384       /* If we're linking an executable at a fixed address, we can
1385 	 omit the dynamic relocation as long as the symbol is local to
1386 	 this module.  */
1387       if (bfd_link_pde (info)
1388 	  && (entry->symndx != -1
1389 	      || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1390 	{
1391 	  if (sec)
1392 	    ad += sec->output_section->vma;
1393 	  if (entry->symndx != -1
1394 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
1395 	    _frvfdpic_add_rofixup (output_bfd,
1396 				   frvfdpic_gotfixup_section (info),
1397 				   frvfdpic_got_section (info)->output_section
1398 				   ->vma
1399 				   + frvfdpic_got_section (info)->output_offset
1400 				   + frvfdpic_got_initial_offset (info)
1401 				   + entry->got_entry, entry);
1402 	}
1403       else
1404 	_frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1405 				 _bfd_elf_section_offset
1406 				 (output_bfd, info,
1407 				  frvfdpic_got_section (info),
1408 				  frvfdpic_got_initial_offset (info)
1409 				  + entry->got_entry)
1410 				 + frvfdpic_got_section (info)
1411 				 ->output_section->vma
1412 				 + frvfdpic_got_section (info)->output_offset,
1413 				 R_FRV_32, idx, ad, entry);
1414 
1415       bfd_put_32 (output_bfd, ad,
1416 		  frvfdpic_got_section (info)->contents
1417 		  + frvfdpic_got_initial_offset (info)
1418 		  + entry->got_entry);
1419     }
1420 
1421   /* Generate relocation for GOT entry pointing to a canonical
1422      function descriptor.  */
1423   if (entry->fdgot_entry)
1424     {
1425       int reloc, idx;
1426       bfd_vma ad = 0;
1427 
1428       if (! (entry->symndx == -1
1429 	     && entry->d.h->root.type == bfd_link_hash_undefweak
1430 	     && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1431 	{
1432 	  /* If the symbol is dynamic and there may be dynamic symbol
1433 	     resolution because we are, or are linked with, a shared
1434 	     library, emit a FUNCDESC relocation such that the dynamic
1435 	     linker will allocate the function descriptor.  If the
1436 	     symbol needs a non-local function descriptor but binds
1437 	     locally (e.g., its visibility is protected, emit a
1438 	     dynamic relocation decayed to section+offset.  */
1439 	  if (entry->symndx == -1
1440 	      && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1441 	      && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1442 	      && !bfd_link_pde (info))
1443 	    {
1444 	      reloc = R_FRV_FUNCDESC;
1445 	      idx = elf_section_data (entry->d.h->root.u.def.section
1446 				      ->output_section)->dynindx;
1447 	      ad = entry->d.h->root.u.def.section->output_offset
1448 		+ entry->d.h->root.u.def.value;
1449 	    }
1450 	  else if (entry->symndx == -1
1451 		   && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1452 	    {
1453 	      reloc = R_FRV_FUNCDESC;
1454 	      idx = dynindx;
1455 	      ad = addend;
1456 	      if (ad)
1457 		{
1458 		  (*info->callbacks->reloc_dangerous)
1459 		    (info, _("relocation requires zero addend"),
1460 		     elf_hash_table (info)->dynobj,
1461 		     frvfdpic_got_section (info),
1462 		     entry->fdgot_entry);
1463 		  return FALSE;
1464 		}
1465 	    }
1466 	  else
1467 	    {
1468 	      /* Otherwise, we know we have a private function descriptor,
1469 		 so reference it directly.  */
1470 	      if (elf_hash_table (info)->dynamic_sections_created)
1471 		BFD_ASSERT (entry->privfd);
1472 	      reloc = R_FRV_32;
1473 	      idx = elf_section_data (frvfdpic_got_section (info)
1474 				      ->output_section)->dynindx;
1475 	      ad = frvfdpic_got_section (info)->output_offset
1476 		+ frvfdpic_got_initial_offset (info) + entry->fd_entry;
1477 	    }
1478 
1479 	  /* If there is room for dynamic symbol resolution, emit the
1480 	     dynamic relocation.  However, if we're linking an
1481 	     executable at a fixed location, we won't have emitted a
1482 	     dynamic symbol entry for the got section, so idx will be
1483 	     zero, which means we can and should compute the address
1484 	     of the private descriptor ourselves.  */
1485 	  if (bfd_link_pde (info)
1486 	      && (entry->symndx != -1
1487 		  || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1488 	    {
1489 	      ad += frvfdpic_got_section (info)->output_section->vma;
1490 	      _frvfdpic_add_rofixup (output_bfd,
1491 				     frvfdpic_gotfixup_section (info),
1492 				     frvfdpic_got_section (info)
1493 				     ->output_section->vma
1494 				     + frvfdpic_got_section (info)
1495 				     ->output_offset
1496 				     + frvfdpic_got_initial_offset (info)
1497 				     + entry->fdgot_entry, entry);
1498 	    }
1499 	  else
1500 	    _frvfdpic_add_dyn_reloc (output_bfd,
1501 				     frvfdpic_gotrel_section (info),
1502 				     _bfd_elf_section_offset
1503 				     (output_bfd, info,
1504 				      frvfdpic_got_section (info),
1505 				      frvfdpic_got_initial_offset (info)
1506 				      + entry->fdgot_entry)
1507 				     + frvfdpic_got_section (info)
1508 				     ->output_section->vma
1509 				     + frvfdpic_got_section (info)
1510 				     ->output_offset,
1511 				     reloc, idx, ad, entry);
1512 	}
1513 
1514       bfd_put_32 (output_bfd, ad,
1515 		  frvfdpic_got_section (info)->contents
1516 		  + frvfdpic_got_initial_offset (info)
1517 		  + entry->fdgot_entry);
1518     }
1519 
1520   /* Generate relocation to fill in a private function descriptor in
1521      the GOT.  */
1522   if (entry->fd_entry)
1523     {
1524       int idx = dynindx;
1525       bfd_vma ad = addend;
1526       bfd_vma ofst;
1527       long lowword, highword;
1528 
1529       /* If the symbol is dynamic but binds locally, use
1530 	 section+offset.  */
1531       if (sec && (entry->symndx != -1
1532 		  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1533 	{
1534 	  if (entry->symndx == -1)
1535 	    ad += entry->d.h->root.u.def.value;
1536 	  else
1537 	    ad += sym->st_value;
1538 	  ad += sec->output_offset;
1539 	  if (sec->output_section && elf_section_data (sec->output_section))
1540 	    idx = elf_section_data (sec->output_section)->dynindx;
1541 	  else
1542 	    idx = 0;
1543 	}
1544 
1545       /* If we're linking an executable at a fixed address, we can
1546 	 omit the dynamic relocation as long as the symbol is local to
1547 	 this module.  */
1548       if (bfd_link_pde (info)
1549 	  && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1550 	{
1551 	  if (sec)
1552 	    ad += sec->output_section->vma;
1553 	  ofst = 0;
1554 	  if (entry->symndx != -1
1555 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
1556 	    {
1557 	      _frvfdpic_add_rofixup (output_bfd,
1558 				     frvfdpic_gotfixup_section (info),
1559 				     frvfdpic_got_section (info)
1560 				     ->output_section->vma
1561 				     + frvfdpic_got_section (info)
1562 				     ->output_offset
1563 				     + frvfdpic_got_initial_offset (info)
1564 				     + entry->fd_entry, entry);
1565 	      _frvfdpic_add_rofixup (output_bfd,
1566 				     frvfdpic_gotfixup_section (info),
1567 				     frvfdpic_got_section (info)
1568 				     ->output_section->vma
1569 				     + frvfdpic_got_section (info)
1570 				     ->output_offset
1571 				     + frvfdpic_got_initial_offset (info)
1572 				     + entry->fd_entry + 4, entry);
1573 	    }
1574 	}
1575       else
1576 	{
1577 	  ofst =
1578 	    _frvfdpic_add_dyn_reloc (output_bfd,
1579 				     entry->lazyplt
1580 				     ? frvfdpic_pltrel_section (info)
1581 				     : frvfdpic_gotrel_section (info),
1582 				     _bfd_elf_section_offset
1583 				     (output_bfd, info,
1584 				      frvfdpic_got_section (info),
1585 				      frvfdpic_got_initial_offset (info)
1586 				      + entry->fd_entry)
1587 				     + frvfdpic_got_section (info)
1588 				     ->output_section->vma
1589 				     + frvfdpic_got_section (info)
1590 				     ->output_offset,
1591 				     R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1592 	}
1593 
1594       /* If we've omitted the dynamic relocation, just emit the fixed
1595 	 addresses of the symbol and of the local GOT base offset.  */
1596       if (bfd_link_pde (info)
1597 	  && sec
1598 	  && sec->output_section)
1599 	{
1600 	  lowword = ad;
1601 	  highword = frvfdpic_got_section (info)->output_section->vma
1602 	    + frvfdpic_got_section (info)->output_offset
1603 	    + frvfdpic_got_initial_offset (info);
1604 	}
1605       else if (entry->lazyplt)
1606 	{
1607 	  if (ad)
1608 	    {
1609 	      (*info->callbacks->reloc_dangerous)
1610 		(info, _("relocation requires zero addend"),
1611 		 elf_hash_table (info)->dynobj,
1612 		 frvfdpic_got_section (info),
1613 		 entry->fd_entry);
1614 	      return FALSE;
1615 	    }
1616 
1617 	  fd_lazy_rel_offset = ofst;
1618 
1619 	  /* A function descriptor used for lazy or local resolving is
1620 	     initialized such that its high word contains the output
1621 	     section index in which the PLT entries are located, and
1622 	     the low word contains the address of the lazy PLT entry
1623 	     entry point, that must be within the memory region
1624 	     assigned to that section.  */
1625 	  lowword = entry->lzplt_entry + 4
1626 	    + frvfdpic_plt_section (info)->output_offset
1627 	    + frvfdpic_plt_section (info)->output_section->vma;
1628 	  highword = _frvfdpic_osec_to_segment
1629 	    (output_bfd, frvfdpic_plt_section (info)->output_section);
1630 	}
1631       else
1632 	{
1633 	  /* A function descriptor for a local function gets the index
1634 	     of the section.  For a non-local function, it's
1635 	     disregarded.  */
1636 	  lowword = ad;
1637 	  if (sec == NULL
1638 	      || (entry->symndx == -1 && entry->d.h->dynindx != -1
1639 		  && entry->d.h->dynindx == idx))
1640 	    highword = 0;
1641 	  else
1642 	    highword = _frvfdpic_osec_to_segment
1643 	      (output_bfd, sec->output_section);
1644 	}
1645 
1646       bfd_put_32 (output_bfd, lowword,
1647 		  frvfdpic_got_section (info)->contents
1648 		  + frvfdpic_got_initial_offset (info)
1649 		  + entry->fd_entry);
1650       bfd_put_32 (output_bfd, highword,
1651 		  frvfdpic_got_section (info)->contents
1652 		  + frvfdpic_got_initial_offset (info)
1653 		  + entry->fd_entry + 4);
1654     }
1655 
1656   /* Generate code for the PLT entry.  */
1657   if (entry->plt_entry != (bfd_vma) -1)
1658     {
1659       bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1660 	+ entry->plt_entry;
1661 
1662       BFD_ASSERT (entry->fd_entry);
1663 
1664       /* Figure out what kind of PLT entry we need, depending on the
1665 	 location of the function descriptor within the GOT.  */
1666       if (entry->fd_entry >= -(1 << (12 - 1))
1667 	  && entry->fd_entry < (1 << (12 - 1)))
1668 	{
1669 	  /* lddi @(gr15, fd_entry), gr14 */
1670 	  bfd_put_32 (output_bfd,
1671 		      0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1672 		      plt_code);
1673 	  plt_code += 4;
1674 	}
1675       else
1676 	{
1677 	  if (entry->fd_entry >= -(1 << (16 - 1))
1678 	      && entry->fd_entry < (1 << (16 - 1)))
1679 	    {
1680 	      /* setlos lo(fd_entry), gr14 */
1681 	      bfd_put_32 (output_bfd,
1682 			  0x9cfc0000
1683 			  | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1684 			  plt_code);
1685 	      plt_code += 4;
1686 	    }
1687 	  else
1688 	    {
1689 	      /* sethi.p hi(fd_entry), gr14
1690 		 setlo lo(fd_entry), gr14 */
1691 	      bfd_put_32 (output_bfd,
1692 			  0x1cf80000
1693 			  | ((entry->fd_entry >> 16)
1694 			     & (((bfd_vma)1 << 16) - 1)),
1695 			  plt_code);
1696 	      plt_code += 4;
1697 	      bfd_put_32 (output_bfd,
1698 			  0x9cf40000
1699 			  | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1700 			  plt_code);
1701 	      plt_code += 4;
1702 	    }
1703 	  /* ldd @(gr14,gr15),gr14 */
1704 	  bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1705 	  plt_code += 4;
1706 	}
1707       /* jmpl @(gr14,gr0) */
1708       bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1709     }
1710 
1711   /* Generate code for the lazy PLT entry.  */
1712   if (entry->lzplt_entry != (bfd_vma) -1)
1713     {
1714       bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1715 	+ entry->lzplt_entry;
1716       bfd_vma resolverStub_addr;
1717 
1718       bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1719       lzplt_code += 4;
1720 
1721       resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1722 	* FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1723       if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1724 	resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1725 
1726       if (entry->lzplt_entry == resolverStub_addr)
1727 	{
1728 	  /* This is a lazy PLT entry that includes a resolver call.  */
1729 	  /* ldd @(gr15,gr0), gr4
1730 	     jmpl @(gr4,gr0)  */
1731 	  bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1732 	  bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1733 	}
1734       else
1735 	{
1736 	  /* bra  resolverStub */
1737 	  bfd_put_32 (output_bfd,
1738 		      0xc01a0000
1739 		      | (((resolverStub_addr - entry->lzplt_entry)
1740 			  / 4) & (((bfd_vma)1 << 16) - 1)),
1741 		      lzplt_code);
1742 	}
1743     }
1744 
1745   /* Generate relocation for GOT entry holding the TLS offset.  */
1746   if (entry->tlsoff_entry)
1747     {
1748       int idx = dynindx;
1749       bfd_vma ad = addend;
1750 
1751       if (entry->symndx != -1
1752 	  || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1753 	{
1754 	  /* If the symbol is dynamic but binds locally, use
1755 	     section+offset.  */
1756 	  if (sec)
1757 	    {
1758 	      if (entry->symndx == -1)
1759 		ad += entry->d.h->root.u.def.value;
1760 	      else
1761 		ad += sym->st_value;
1762 	      ad += sec->output_offset;
1763 	      if (sec->output_section
1764 		  && elf_section_data (sec->output_section))
1765 		idx = elf_section_data (sec->output_section)->dynindx;
1766 	      else
1767 		idx = 0;
1768 	    }
1769 	}
1770 
1771       /* *ABS*+addend is special for TLS relocations, use only the
1772 	 addend.  */
1773       if (bfd_link_executable (info)
1774 	  && idx == 0
1775 	  && (bfd_is_abs_section (sec)
1776 	      || bfd_is_und_section (sec)))
1777 	;
1778       /* If we're linking an executable, we can entirely omit the
1779 	 dynamic relocation if the symbol is local to this module.  */
1780       else if (bfd_link_executable (info)
1781 	       && (entry->symndx != -1
1782 		   || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1783 	{
1784 	  if (sec)
1785 	    ad += sec->output_section->vma - tls_biased_base (info);
1786 	}
1787       else
1788 	{
1789 	  if (idx == 0
1790 	      && (bfd_is_abs_section (sec)
1791 		  || bfd_is_und_section (sec)))
1792 	    {
1793 	      if (! elf_hash_table (info)->tls_sec)
1794 		{
1795 		  (*info->callbacks->undefined_symbol)
1796 		    (info, "TLS section", elf_hash_table (info)->dynobj,
1797 		     frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1798 		  return FALSE;
1799 		}
1800 	      idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1801 	      ad += FRVFDPIC_TLS_BIAS;
1802 	    }
1803 	  _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1804 				   _bfd_elf_section_offset
1805 				   (output_bfd, info,
1806 				    frvfdpic_got_section (info),
1807 				    frvfdpic_got_initial_offset (info)
1808 				    + entry->tlsoff_entry)
1809 				   + frvfdpic_got_section (info)
1810 				   ->output_section->vma
1811 				   + frvfdpic_got_section (info)
1812 				   ->output_offset,
1813 				   R_FRV_TLSOFF, idx, ad, entry);
1814 	}
1815 
1816       bfd_put_32 (output_bfd, ad,
1817 		  frvfdpic_got_section (info)->contents
1818 		  + frvfdpic_got_initial_offset (info)
1819 		  + entry->tlsoff_entry);
1820     }
1821 
1822   if (entry->tlsdesc_entry)
1823     {
1824       int idx = dynindx;
1825       bfd_vma ad = addend;
1826 
1827       /* If the symbol is dynamic but binds locally, use
1828 	 section+offset.  */
1829       if (sec && (entry->symndx != -1
1830 		  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1831 	{
1832 	  if (entry->symndx == -1)
1833 	    ad += entry->d.h->root.u.def.value;
1834 	  else
1835 	    ad += sym->st_value;
1836 	  ad += sec->output_offset;
1837 	  if (sec->output_section && elf_section_data (sec->output_section))
1838 	    idx = elf_section_data (sec->output_section)->dynindx;
1839 	  else
1840 	    idx = 0;
1841 	}
1842 
1843       /* If we didn't set up a TLS offset entry, but we're linking an
1844 	 executable and the symbol binds locally, we can use the
1845 	 module offset in the TLS descriptor in relaxations.  */
1846       if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1847 	entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1848 
1849       if (bfd_link_pde (info)
1850 	  && ((idx == 0
1851 	       && (bfd_is_abs_section (sec)
1852 		   || bfd_is_und_section (sec)))
1853 	      || entry->symndx != -1
1854 	      || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1855 	{
1856 	  /* *ABS*+addend is special for TLS relocations, use only the
1857 	     addend for the TLS offset, and take the module id as
1858 	     0.  */
1859 	  if (idx == 0
1860 	      && (bfd_is_abs_section (sec)
1861 		  || bfd_is_und_section (sec)))
1862 	    ;
1863 	  /* For other TLS symbols that bind locally, add the section
1864 	     TLS offset to the addend.  */
1865 	  else if (sec)
1866 	    ad += sec->output_section->vma - tls_biased_base (info);
1867 
1868 	  bfd_put_32 (output_bfd,
1869 		      frvfdpic_plt_section (info)->output_section->vma
1870 		      + frvfdpic_plt_section (info)->output_offset
1871 		      + frvfdpic_plt_tls_ret_offset (info),
1872 		      frvfdpic_got_section (info)->contents
1873 		      + frvfdpic_got_initial_offset (info)
1874 		      + entry->tlsdesc_entry);
1875 
1876 	  _frvfdpic_add_rofixup (output_bfd,
1877 				 frvfdpic_gotfixup_section (info),
1878 				 frvfdpic_got_section (info)
1879 				 ->output_section->vma
1880 				 + frvfdpic_got_section (info)
1881 				 ->output_offset
1882 				 + frvfdpic_got_initial_offset (info)
1883 				 + entry->tlsdesc_entry, entry);
1884 
1885 	  BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1886 
1887 	  /* We've used one of the reserved fixups, so discount it so
1888 	     that we can check at the end that we've used them
1889 	     all.  */
1890 	  frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1891 
1892 	  /* While at that, make sure the ret instruction makes to the
1893 	     right location in the PLT.  We could do it only when we
1894 	     got to 0, but since the check at the end will only print
1895 	     a warning, make sure we have the ret in place in case the
1896 	     warning is missed.  */
1897 	  bfd_put_32 (output_bfd, 0xc03a4000,
1898 		      frvfdpic_plt_section (info)->contents
1899 		      + frvfdpic_plt_tls_ret_offset (info));
1900 	}
1901       else
1902 	{
1903 	  if (idx == 0
1904 	      && (bfd_is_abs_section (sec)
1905 		  || bfd_is_und_section (sec)))
1906 	    {
1907 	      if (! elf_hash_table (info)->tls_sec)
1908 		{
1909 		  (*info->callbacks->undefined_symbol)
1910 		    (info, "TLS section", elf_hash_table (info)->dynobj,
1911 		     frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1912 		  return FALSE;
1913 		}
1914 	      idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1915 	      ad += FRVFDPIC_TLS_BIAS;
1916 	    }
1917 
1918 	  _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1919 				   _bfd_elf_section_offset
1920 				   (output_bfd, info,
1921 				    frvfdpic_got_section (info),
1922 				    frvfdpic_got_initial_offset (info)
1923 				    + entry->tlsdesc_entry)
1924 				   + frvfdpic_got_section (info)
1925 				   ->output_section->vma
1926 				   + frvfdpic_got_section (info)
1927 				   ->output_offset,
1928 				   R_FRV_TLSDESC_VALUE, idx, ad, entry);
1929 
1930 	  bfd_put_32 (output_bfd, 0,
1931 		      frvfdpic_got_section (info)->contents
1932 		      + frvfdpic_got_initial_offset (info)
1933 		      + entry->tlsdesc_entry);
1934 	}
1935 
1936       bfd_put_32 (output_bfd, ad,
1937 		  frvfdpic_got_section (info)->contents
1938 		  + frvfdpic_got_initial_offset (info)
1939 		  + entry->tlsdesc_entry + 4);
1940     }
1941 
1942   /* Generate code for the get-TLS-offset PLT entry.  */
1943   if (entry->tlsplt_entry != (bfd_vma) -1)
1944     {
1945       bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1946 	+ entry->tlsplt_entry;
1947 
1948       if (bfd_link_executable (info)
1949 	  && (entry->symndx != -1
1950 	      || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1951 	{
1952 	  int idx = dynindx;
1953 	  bfd_vma ad = addend;
1954 
1955 	  /* sec may be NULL when referencing an undefweak symbol
1956 	     while linking a static executable.  */
1957 	  if (!sec)
1958 	    {
1959 	      BFD_ASSERT (entry->symndx == -1
1960 			  && entry->d.h->root.type == bfd_link_hash_undefweak);
1961 	    }
1962 	  else
1963 	    {
1964 	      if (entry->symndx == -1)
1965 		ad += entry->d.h->root.u.def.value;
1966 	      else
1967 		ad += sym->st_value;
1968 	      ad += sec->output_offset;
1969 	      if (sec->output_section
1970 		  && elf_section_data (sec->output_section))
1971 		idx = elf_section_data (sec->output_section)->dynindx;
1972 	      else
1973 		idx = 0;
1974 	    }
1975 
1976 	  /* *ABS*+addend is special for TLS relocations, use only the
1977 	     addend for the TLS offset, and take the module id as
1978 	     0.  */
1979 	  if (idx == 0
1980 	      && (bfd_is_abs_section (sec)
1981 		  || bfd_is_und_section (sec)))
1982 	    ;
1983 	  /* For other TLS symbols that bind locally, add the section
1984 	     TLS offset to the addend.  */
1985 	  else if (sec)
1986 	    ad += sec->output_section->vma - tls_biased_base (info);
1987 
1988 	  if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1989 	      && (bfd_signed_vma)ad < (1 << (16 - 1)))
1990 	    {
1991 	      /* setlos lo(ad), gr9 */
1992 	      bfd_put_32 (output_bfd,
1993 			  0x92fc0000
1994 			  | (ad
1995 			     & (((bfd_vma)1 << 16) - 1)),
1996 			  plt_code);
1997 	      plt_code += 4;
1998 	    }
1999 	  else
2000 	    {
2001 	      /* sethi.p hi(ad), gr9
2002 		 setlo lo(ad), gr9 */
2003 	      bfd_put_32 (output_bfd,
2004 			  0x12f80000
2005 			  | ((ad >> 16)
2006 			     & (((bfd_vma)1 << 16) - 1)),
2007 			  plt_code);
2008 	      plt_code += 4;
2009 	      bfd_put_32 (output_bfd,
2010 			  0x92f40000
2011 			  | (ad
2012 			     & (((bfd_vma)1 << 16) - 1)),
2013 			  plt_code);
2014 	      plt_code += 4;
2015 	    }
2016 	  /* ret */
2017 	  bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2018 	}
2019       else if (entry->tlsoff_entry)
2020 	{
2021 	  /* Figure out what kind of PLT entry we need, depending on the
2022 	     location of the TLS descriptor within the GOT.  */
2023 	  if (entry->tlsoff_entry >= -(1 << (12 - 1))
2024 	      && entry->tlsoff_entry < (1 << (12 - 1)))
2025 	    {
2026 	      /* ldi @(gr15, tlsoff_entry), gr9 */
2027 	      bfd_put_32 (output_bfd,
2028 			  0x92c8f000 | (entry->tlsoff_entry
2029 					& ((1 << 12) - 1)),
2030 			  plt_code);
2031 	      plt_code += 4;
2032 	    }
2033 	  else
2034 	    {
2035 	      if (entry->tlsoff_entry >= -(1 << (16 - 1))
2036 		  && entry->tlsoff_entry < (1 << (16 - 1)))
2037 		{
2038 		  /* setlos lo(tlsoff_entry), gr8 */
2039 		  bfd_put_32 (output_bfd,
2040 			      0x90fc0000
2041 			      | (entry->tlsoff_entry
2042 				 & (((bfd_vma)1 << 16) - 1)),
2043 			      plt_code);
2044 		  plt_code += 4;
2045 		}
2046 	      else
2047 		{
2048 		  /* sethi.p hi(tlsoff_entry), gr8
2049 		     setlo lo(tlsoff_entry), gr8 */
2050 		  bfd_put_32 (output_bfd,
2051 			      0x10f80000
2052 			      | ((entry->tlsoff_entry >> 16)
2053 				 & (((bfd_vma)1 << 16) - 1)),
2054 			      plt_code);
2055 		  plt_code += 4;
2056 		  bfd_put_32 (output_bfd,
2057 			      0x90f40000
2058 			      | (entry->tlsoff_entry
2059 				 & (((bfd_vma)1 << 16) - 1)),
2060 			      plt_code);
2061 		  plt_code += 4;
2062 		}
2063 	      /* ld @(gr15,gr8),gr9 */
2064 	      bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2065 	      plt_code += 4;
2066 	    }
2067 	  /* ret */
2068 	  bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2069 	}
2070       else
2071 	{
2072 	  BFD_ASSERT (entry->tlsdesc_entry);
2073 
2074 	  /* Figure out what kind of PLT entry we need, depending on the
2075 	     location of the TLS descriptor within the GOT.  */
2076 	  if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2077 	      && entry->tlsdesc_entry < (1 << (12 - 1)))
2078 	    {
2079 	      /* lddi @(gr15, tlsdesc_entry), gr8 */
2080 	      bfd_put_32 (output_bfd,
2081 			  0x90ccf000 | (entry->tlsdesc_entry
2082 					& ((1 << 12) - 1)),
2083 			  plt_code);
2084 	      plt_code += 4;
2085 	    }
2086 	  else
2087 	    {
2088 	      if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2089 		  && entry->tlsdesc_entry < (1 << (16 - 1)))
2090 		{
2091 		  /* setlos lo(tlsdesc_entry), gr8 */
2092 		  bfd_put_32 (output_bfd,
2093 			      0x90fc0000
2094 			      | (entry->tlsdesc_entry
2095 				 & (((bfd_vma)1 << 16) - 1)),
2096 			      plt_code);
2097 		  plt_code += 4;
2098 		}
2099 	      else
2100 		{
2101 		  /* sethi.p hi(tlsdesc_entry), gr8
2102 		     setlo lo(tlsdesc_entry), gr8 */
2103 		  bfd_put_32 (output_bfd,
2104 			      0x10f80000
2105 			      | ((entry->tlsdesc_entry >> 16)
2106 				 & (((bfd_vma)1 << 16) - 1)),
2107 			      plt_code);
2108 		  plt_code += 4;
2109 		  bfd_put_32 (output_bfd,
2110 			      0x90f40000
2111 			      | (entry->tlsdesc_entry
2112 				 & (((bfd_vma)1 << 16) - 1)),
2113 			      plt_code);
2114 		  plt_code += 4;
2115 		}
2116 	      /* ldd @(gr15,gr8),gr8 */
2117 	      bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2118 	      plt_code += 4;
2119 	    }
2120 	  /* jmpl @(gr8,gr0) */
2121 	  bfd_put_32 (output_bfd, 0x80308000, plt_code);
2122 	}
2123     }
2124 
2125   return TRUE;
2126 }
2127 
2128 /* Handle an FRV small data reloc.  */
2129 
2130 static bfd_reloc_status_type
elf32_frv_relocate_gprel12(struct bfd_link_info * info,bfd * input_bfd,asection * input_section,Elf_Internal_Rela * relocation,bfd_byte * contents,bfd_vma value)2131 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2132 			    bfd *input_bfd,
2133 			    asection *input_section,
2134 			    Elf_Internal_Rela *relocation,
2135 			    bfd_byte *contents,
2136 			    bfd_vma value)
2137 {
2138   bfd_vma insn;
2139   bfd_vma gp;
2140   struct bfd_link_hash_entry *h;
2141 
2142   h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2143 
2144   gp = (h->u.def.value
2145 	+ h->u.def.section->output_section->vma
2146 	+ h->u.def.section->output_offset);
2147 
2148   value -= input_section->output_section->vma;
2149   value -= (gp - input_section->output_section->vma);
2150 
2151   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2152 
2153   value += relocation->r_addend;
2154 
2155   if ((long) value > 0x7ff || (long) value < -0x800)
2156     return bfd_reloc_overflow;
2157 
2158   bfd_put_32 (input_bfd,
2159 	      (insn & 0xfffff000) | (value & 0xfff),
2160 	      contents + relocation->r_offset);
2161 
2162   return bfd_reloc_ok;
2163 }
2164 
2165 /* Handle an FRV small data reloc. for the u12 field.  */
2166 
2167 static bfd_reloc_status_type
elf32_frv_relocate_gprelu12(struct bfd_link_info * info,bfd * input_bfd,asection * input_section,Elf_Internal_Rela * relocation,bfd_byte * contents,bfd_vma value)2168 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2169 			     bfd *input_bfd,
2170 			     asection *input_section,
2171 			     Elf_Internal_Rela *relocation,
2172 			     bfd_byte *contents,
2173 			     bfd_vma value)
2174 {
2175   bfd_vma insn;
2176   bfd_vma gp;
2177   struct bfd_link_hash_entry *h;
2178   bfd_vma mask;
2179 
2180   h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2181 
2182   gp = (h->u.def.value
2183 	+ h->u.def.section->output_section->vma
2184 	+ h->u.def.section->output_offset);
2185 
2186   value -= input_section->output_section->vma;
2187   value -= (gp - input_section->output_section->vma);
2188 
2189   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2190 
2191   value += relocation->r_addend;
2192 
2193   if ((long) value > 0x7ff || (long) value < -0x800)
2194     return bfd_reloc_overflow;
2195 
2196   /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0.  */
2197   mask = 0x3f03f;
2198   insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2199 
2200   bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2201 
2202   return bfd_reloc_ok;
2203 }
2204 
2205 /* Handle an FRV ELF HI16 reloc.  */
2206 
2207 static bfd_reloc_status_type
elf32_frv_relocate_hi16(bfd * input_bfd,Elf_Internal_Rela * relhi,bfd_byte * contents,bfd_vma value)2208 elf32_frv_relocate_hi16 (bfd *input_bfd,
2209 			 Elf_Internal_Rela *relhi,
2210 			 bfd_byte *contents,
2211 			 bfd_vma value)
2212 {
2213   bfd_vma insn;
2214 
2215   insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2216 
2217   value += relhi->r_addend;
2218   value = ((value >> 16) & 0xffff);
2219 
2220   insn = (insn & 0xffff0000) | value;
2221 
2222   if ((long) value > 0xffff || (long) value < -0x10000)
2223     return bfd_reloc_overflow;
2224 
2225   bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2226   return bfd_reloc_ok;
2227 
2228 }
2229 static bfd_reloc_status_type
elf32_frv_relocate_lo16(bfd * input_bfd,Elf_Internal_Rela * rello,bfd_byte * contents,bfd_vma value)2230 elf32_frv_relocate_lo16 (bfd *input_bfd,
2231 			 Elf_Internal_Rela *rello,
2232 			 bfd_byte *contents,
2233 			 bfd_vma value)
2234 {
2235   bfd_vma insn;
2236 
2237   insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2238 
2239   value += rello->r_addend;
2240   value = value & 0xffff;
2241 
2242   insn = (insn & 0xffff0000) | value;
2243 
2244   if ((long) value > 0xffff || (long) value < -0x10000)
2245     return bfd_reloc_overflow;
2246 
2247   bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2248   return bfd_reloc_ok;
2249 }
2250 
2251 /* Perform the relocation for the CALL label24 instruction.  */
2252 
2253 static bfd_reloc_status_type
elf32_frv_relocate_label24(bfd * input_bfd,asection * input_section,Elf_Internal_Rela * rello,bfd_byte * contents,bfd_vma value)2254 elf32_frv_relocate_label24 (bfd *input_bfd,
2255 			    asection *input_section,
2256 			    Elf_Internal_Rela *rello,
2257 			    bfd_byte *contents,
2258 			    bfd_vma value)
2259 {
2260   bfd_vma insn;
2261   bfd_vma label6;
2262   bfd_vma label18;
2263 
2264   /* The format for the call instruction is:
2265 
2266     0 000000 0001111 000000000000000000
2267       label6 opcode  label18
2268 
2269     The branch calculation is: pc + (4*label24)
2270     where label24 is the concatenation of label6 and label18.  */
2271 
2272   /* Grab the instruction.  */
2273   insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2274 
2275   value -= input_section->output_section->vma + input_section->output_offset;
2276   value -= rello->r_offset;
2277   value += rello->r_addend;
2278 
2279   value = value >> 2;
2280 
2281   label6  = value & 0xfc0000;
2282   label6  = label6 << 7;
2283 
2284   label18 = value & 0x3ffff;
2285 
2286   insn = insn & 0x803c0000;
2287   insn = insn | label6;
2288   insn = insn | label18;
2289 
2290   bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2291 
2292   return bfd_reloc_ok;
2293 }
2294 
2295 static bfd_reloc_status_type
elf32_frv_relocate_gprelhi(struct bfd_link_info * info,bfd * input_bfd,asection * input_section,Elf_Internal_Rela * relocation,bfd_byte * contents,bfd_vma value)2296 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2297 			    bfd *input_bfd,
2298 			    asection *input_section,
2299 			    Elf_Internal_Rela *relocation,
2300 			    bfd_byte *contents,
2301 			    bfd_vma value)
2302 {
2303   bfd_vma insn;
2304   bfd_vma gp;
2305   struct bfd_link_hash_entry *h;
2306 
2307   h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2308 
2309   gp = (h->u.def.value
2310         + h->u.def.section->output_section->vma
2311         + h->u.def.section->output_offset);
2312 
2313   value -= input_section->output_section->vma;
2314   value -= (gp - input_section->output_section->vma);
2315   value += relocation->r_addend;
2316   value = ((value >> 16) & 0xffff);
2317 
2318   if ((long) value > 0xffff || (long) value < -0x10000)
2319     return bfd_reloc_overflow;
2320 
2321   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2322   insn = (insn & 0xffff0000) | value;
2323 
2324   bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2325   return bfd_reloc_ok;
2326 }
2327 
2328 static bfd_reloc_status_type
elf32_frv_relocate_gprello(struct bfd_link_info * info,bfd * input_bfd,asection * input_section,Elf_Internal_Rela * relocation,bfd_byte * contents,bfd_vma value)2329 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2330 			    bfd *input_bfd,
2331 			    asection *input_section,
2332 			    Elf_Internal_Rela *relocation,
2333 			    bfd_byte *contents,
2334 			    bfd_vma value)
2335 {
2336   bfd_vma insn;
2337   bfd_vma gp;
2338   struct bfd_link_hash_entry *h;
2339 
2340   h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2341 
2342   gp = (h->u.def.value
2343         + h->u.def.section->output_section->vma
2344         + h->u.def.section->output_offset);
2345 
2346   value -= input_section->output_section->vma;
2347   value -= (gp - input_section->output_section->vma);
2348   value += relocation->r_addend;
2349   value = value & 0xffff;
2350 
2351   if ((long) value > 0xffff || (long) value < -0x10000)
2352     return bfd_reloc_overflow;
2353 
2354   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2355   insn = (insn & 0xffff0000) | value;
2356 
2357   bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2358 
2359  return bfd_reloc_ok;
2360 }
2361 
2362 static reloc_howto_type *
frv_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)2363 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2364 		       bfd_reloc_code_real_type code)
2365 {
2366   switch (code)
2367     {
2368     default:
2369       break;
2370 
2371     case BFD_RELOC_NONE:
2372       return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2373 
2374     case BFD_RELOC_32:
2375       if (elf_elfheader (abfd)->e_type == ET_EXEC
2376 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2377 	return &elf32_frv_rel_32_howto;
2378       /* Fall through.  */
2379     case BFD_RELOC_CTOR:
2380       return &elf32_frv_howto_table[ (int) R_FRV_32];
2381 
2382     case BFD_RELOC_FRV_LABEL16:
2383       return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2384 
2385     case BFD_RELOC_FRV_LABEL24:
2386       return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2387 
2388     case BFD_RELOC_FRV_LO16:
2389       return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2390 
2391     case BFD_RELOC_FRV_HI16:
2392       return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2393 
2394     case BFD_RELOC_FRV_GPREL12:
2395       return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2396 
2397     case BFD_RELOC_FRV_GPRELU12:
2398       return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2399 
2400     case BFD_RELOC_FRV_GPREL32:
2401       return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2402 
2403     case BFD_RELOC_FRV_GPRELHI:
2404       return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2405 
2406     case BFD_RELOC_FRV_GPRELLO:
2407       return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2408 
2409     case BFD_RELOC_FRV_GOT12:
2410       return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2411 
2412     case BFD_RELOC_FRV_GOTHI:
2413       return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2414 
2415     case BFD_RELOC_FRV_GOTLO:
2416       return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2417 
2418     case BFD_RELOC_FRV_FUNCDESC:
2419       if (elf_elfheader (abfd)->e_type == ET_EXEC
2420 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2421 	return &elf32_frv_rel_funcdesc_howto;
2422       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2423 
2424     case BFD_RELOC_FRV_FUNCDESC_GOT12:
2425       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2426 
2427     case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2428       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2429 
2430     case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2431       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2432 
2433     case BFD_RELOC_FRV_FUNCDESC_VALUE:
2434       if (elf_elfheader (abfd)->e_type == ET_EXEC
2435 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2436 	return &elf32_frv_rel_funcdesc_value_howto;
2437       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2438 
2439     case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2440       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2441 
2442     case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2443       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2444 
2445     case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2446       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2447 
2448     case BFD_RELOC_FRV_GOTOFF12:
2449       return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2450 
2451     case BFD_RELOC_FRV_GOTOFFHI:
2452       return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2453 
2454     case BFD_RELOC_FRV_GOTOFFLO:
2455       return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2456 
2457     case BFD_RELOC_FRV_GETTLSOFF:
2458       return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2459 
2460     case BFD_RELOC_FRV_TLSDESC_VALUE:
2461       if (elf_elfheader (abfd)->e_type == ET_EXEC
2462 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2463 	return &elf32_frv_rel_tlsdesc_value_howto;
2464       return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2465 
2466     case BFD_RELOC_FRV_GOTTLSDESC12:
2467       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2468 
2469     case BFD_RELOC_FRV_GOTTLSDESCHI:
2470       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2471 
2472     case BFD_RELOC_FRV_GOTTLSDESCLO:
2473       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2474 
2475     case BFD_RELOC_FRV_TLSMOFF12:
2476       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2477 
2478     case BFD_RELOC_FRV_TLSMOFFHI:
2479       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2480 
2481     case BFD_RELOC_FRV_TLSMOFFLO:
2482       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2483 
2484     case BFD_RELOC_FRV_GOTTLSOFF12:
2485       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2486 
2487     case BFD_RELOC_FRV_GOTTLSOFFHI:
2488       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2489 
2490     case BFD_RELOC_FRV_GOTTLSOFFLO:
2491       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2492 
2493     case BFD_RELOC_FRV_TLSOFF:
2494       if (elf_elfheader (abfd)->e_type == ET_EXEC
2495 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2496 	return &elf32_frv_rel_tlsoff_howto;
2497       return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2498 
2499     case BFD_RELOC_FRV_TLSDESC_RELAX:
2500       return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2501 
2502     case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2503       return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2504 
2505     case BFD_RELOC_FRV_TLSOFF_RELAX:
2506       return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2507 
2508     case BFD_RELOC_FRV_TLSMOFF:
2509       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2510 
2511     case BFD_RELOC_VTABLE_INHERIT:
2512       return &elf32_frv_vtinherit_howto;
2513 
2514     case BFD_RELOC_VTABLE_ENTRY:
2515       return &elf32_frv_vtentry_howto;
2516     }
2517 
2518   return NULL;
2519 }
2520 
2521 static reloc_howto_type *
frv_reloc_name_lookup(bfd * abfd ATTRIBUTE_UNUSED,const char * r_name)2522 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2523 {
2524   unsigned int i;
2525 
2526   for (i = 0;
2527        i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2528        i++)
2529     if (elf32_frv_howto_table[i].name != NULL
2530 	&& strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2531       return &elf32_frv_howto_table[i];
2532 
2533   if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2534     return &elf32_frv_vtinherit_howto;
2535   if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2536     return &elf32_frv_vtentry_howto;
2537 
2538   return NULL;
2539 }
2540 
2541 /* Set the howto pointer for an FRV ELF reloc.  */
2542 
2543 static void
frv_info_to_howto_rela(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)2544 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2545 			arelent *cache_ptr,
2546 			Elf_Internal_Rela *dst)
2547 {
2548   unsigned int r_type;
2549 
2550   r_type = ELF32_R_TYPE (dst->r_info);
2551   switch (r_type)
2552     {
2553     case R_FRV_GNU_VTINHERIT:
2554       cache_ptr->howto = &elf32_frv_vtinherit_howto;
2555       break;
2556 
2557     case R_FRV_GNU_VTENTRY:
2558       cache_ptr->howto = &elf32_frv_vtentry_howto;
2559       break;
2560 
2561     default:
2562       if (r_type >= (unsigned int) R_FRV_max)
2563 	{
2564 	  _bfd_error_handler (_("%B: invalid FRV reloc number: %d"), abfd, r_type);
2565 	  r_type = 0;
2566 	}
2567       cache_ptr->howto = & elf32_frv_howto_table [r_type];
2568       break;
2569     }
2570 }
2571 
2572 /* Set the howto pointer for an FRV ELF REL reloc.  */
2573 static void
frvfdpic_info_to_howto_rel(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)2574 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2575 			    arelent *cache_ptr, Elf_Internal_Rela *dst)
2576 {
2577   unsigned int r_type;
2578 
2579   r_type = ELF32_R_TYPE (dst->r_info);
2580   switch (r_type)
2581     {
2582     case R_FRV_32:
2583       cache_ptr->howto = &elf32_frv_rel_32_howto;
2584       break;
2585 
2586     case R_FRV_FUNCDESC:
2587       cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2588       break;
2589 
2590     case R_FRV_FUNCDESC_VALUE:
2591       cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2592       break;
2593 
2594     case R_FRV_TLSDESC_VALUE:
2595       cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2596       break;
2597 
2598     case R_FRV_TLSOFF:
2599       cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2600       break;
2601 
2602     default:
2603       cache_ptr->howto = NULL;
2604       break;
2605     }
2606 }
2607 
2608 /* Perform a single relocation.  By default we use the standard BFD
2609    routines, but a few relocs, we have to do them ourselves.  */
2610 
2611 static bfd_reloc_status_type
frv_final_link_relocate(reloc_howto_type * howto,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * rel,bfd_vma relocation)2612 frv_final_link_relocate (reloc_howto_type *howto,
2613 			 bfd *input_bfd,
2614 			 asection *input_section,
2615 			 bfd_byte *contents,
2616 			 Elf_Internal_Rela *rel,
2617 			 bfd_vma relocation)
2618 {
2619   return _bfd_final_link_relocate (howto, input_bfd, input_section,
2620 				   contents, rel->r_offset, relocation,
2621 				   rel->r_addend);
2622 }
2623 
2624 
2625 /* Relocate an FRV ELF section.
2626 
2627    The RELOCATE_SECTION function is called by the new ELF backend linker
2628    to handle the relocations for a section.
2629 
2630    The relocs are always passed as Rela structures; if the section
2631    actually uses Rel structures, the r_addend field will always be
2632    zero.
2633 
2634    This function is responsible for adjusting the section contents as
2635    necessary, and (if using Rela relocs and generating a relocatable
2636    output file) adjusting the reloc addend as necessary.
2637 
2638    This function does not have to worry about setting the reloc
2639    address or the reloc symbol index.
2640 
2641    LOCAL_SYMS is a pointer to the swapped in local symbols.
2642 
2643    LOCAL_SECTIONS is an array giving the section in the input file
2644    corresponding to the st_shndx field of each local symbol.
2645 
2646    The global hash table entry for the global symbols can be found
2647    via elf_sym_hashes (input_bfd).
2648 
2649    When generating relocatable output, this function must handle
2650    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
2651    going to be the section symbol corresponding to the output
2652    section, which means that the addend must be adjusted
2653    accordingly.  */
2654 
2655 static bfd_boolean
elf32_frv_relocate_section(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * relocs,Elf_Internal_Sym * local_syms,asection ** local_sections)2656 elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2657 			    struct bfd_link_info *info,
2658 			    bfd *input_bfd,
2659 			    asection *input_section,
2660 			    bfd_byte *contents,
2661 			    Elf_Internal_Rela *relocs,
2662 			    Elf_Internal_Sym *local_syms,
2663 			    asection **local_sections)
2664 {
2665   Elf_Internal_Shdr *symtab_hdr;
2666   struct elf_link_hash_entry **sym_hashes;
2667   Elf_Internal_Rela *rel;
2668   Elf_Internal_Rela *relend;
2669   unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2670     check_segment[2];
2671   int silence_segment_error = !bfd_link_pic (info);
2672   unsigned long insn;
2673 
2674   symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2675   sym_hashes = elf_sym_hashes (input_bfd);
2676   relend     = relocs + input_section->reloc_count;
2677 
2678   isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2679 					    input_section->output_section);
2680   if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2681     got_segment = _frvfdpic_osec_to_segment (output_bfd,
2682 					     frvfdpic_got_section (info)
2683 					     ->output_section);
2684   else
2685     got_segment = -1;
2686   if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2687     gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2688 					       frvfdpic_gotfixup_section (info)
2689 					       ->output_section);
2690   else
2691     gprel_segment = -1;
2692   if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2693     plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2694 					     frvfdpic_plt_section (info)
2695 					     ->output_section);
2696   else
2697     plt_segment = -1;
2698   if (elf_hash_table (info)->tls_sec)
2699     tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2700 					     elf_hash_table (info)->tls_sec);
2701   else
2702     tls_segment = -1;
2703 
2704   for (rel = relocs; rel < relend; rel ++)
2705     {
2706       reloc_howto_type *howto;
2707       unsigned long r_symndx;
2708       Elf_Internal_Sym *sym;
2709       asection *sec;
2710       struct elf_link_hash_entry *h;
2711       bfd_vma relocation;
2712       bfd_reloc_status_type r;
2713       const char *name;
2714       int r_type;
2715       asection *osec;
2716       struct frvfdpic_relocs_info *picrel;
2717       bfd_vma orig_addend = rel->r_addend;
2718 
2719       r_type = ELF32_R_TYPE (rel->r_info);
2720 
2721       if (   r_type == R_FRV_GNU_VTINHERIT
2722 	  || r_type == R_FRV_GNU_VTENTRY)
2723 	continue;
2724 
2725       r_symndx = ELF32_R_SYM (rel->r_info);
2726       howto  = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2727       h      = NULL;
2728       sym    = NULL;
2729       sec    = NULL;
2730 
2731       if (r_symndx < symtab_hdr->sh_info)
2732 	{
2733 	  sym = local_syms + r_symndx;
2734 	  osec = sec = local_sections [r_symndx];
2735 	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2736 
2737 	  name = bfd_elf_string_from_elf_section
2738 	    (input_bfd, symtab_hdr->sh_link, sym->st_name);
2739 	  if (name == NULL || name[0] == 0)
2740 	    name = bfd_section_name (input_bfd, sec);
2741 	}
2742       else
2743 	{
2744 	  bfd_boolean warned, ignored;
2745 	  bfd_boolean unresolved_reloc;
2746 
2747 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2748 				   r_symndx, symtab_hdr, sym_hashes,
2749 				   h, sec, relocation,
2750 				   unresolved_reloc, warned, ignored);
2751 	  osec = sec;
2752 	  name = h->root.root.string;
2753 	}
2754 
2755       if (sec != NULL && discarded_section (sec))
2756 	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2757 					 rel, 1, relend, howto, 0, contents);
2758 
2759       if (bfd_link_relocatable (info))
2760 	continue;
2761 
2762       if (r_type != R_FRV_TLSMOFF
2763 	  && h != NULL
2764 	  && (h->root.type == bfd_link_hash_defined
2765 	      || h->root.type == bfd_link_hash_defweak)
2766 	  && !FRVFDPIC_SYM_LOCAL (info, h))
2767 	{
2768 	  osec = sec = NULL;
2769 	  relocation = 0;
2770 	}
2771 
2772       switch (r_type)
2773 	{
2774 	case R_FRV_LABEL24:
2775 	case R_FRV_32:
2776 	  if (! IS_FDPIC (output_bfd))
2777 	    goto non_fdpic;
2778 
2779 	case R_FRV_GOT12:
2780 	case R_FRV_GOTHI:
2781 	case R_FRV_GOTLO:
2782 	case R_FRV_FUNCDESC_GOT12:
2783 	case R_FRV_FUNCDESC_GOTHI:
2784 	case R_FRV_FUNCDESC_GOTLO:
2785 	case R_FRV_GOTOFF12:
2786 	case R_FRV_GOTOFFHI:
2787 	case R_FRV_GOTOFFLO:
2788 	case R_FRV_FUNCDESC_GOTOFF12:
2789 	case R_FRV_FUNCDESC_GOTOFFHI:
2790 	case R_FRV_FUNCDESC_GOTOFFLO:
2791 	case R_FRV_FUNCDESC:
2792 	case R_FRV_FUNCDESC_VALUE:
2793 	case R_FRV_GETTLSOFF:
2794 	case R_FRV_TLSDESC_VALUE:
2795 	case R_FRV_GOTTLSDESC12:
2796 	case R_FRV_GOTTLSDESCHI:
2797 	case R_FRV_GOTTLSDESCLO:
2798 	case R_FRV_TLSMOFF12:
2799 	case R_FRV_TLSMOFFHI:
2800 	case R_FRV_TLSMOFFLO:
2801 	case R_FRV_GOTTLSOFF12:
2802 	case R_FRV_GOTTLSOFFHI:
2803 	case R_FRV_GOTTLSOFFLO:
2804 	case R_FRV_TLSOFF:
2805 	case R_FRV_TLSDESC_RELAX:
2806 	case R_FRV_GETTLSOFF_RELAX:
2807 	case R_FRV_TLSOFF_RELAX:
2808 	case R_FRV_TLSMOFF:
2809 	  if (h != NULL)
2810 	    picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2811 						      (info), input_bfd, h,
2812 						      orig_addend, INSERT);
2813 	  else
2814 	    /* In order to find the entry we created before, we must
2815 	       use the original addend, not the one that may have been
2816 	       modified by _bfd_elf_rela_local_sym().  */
2817 	    picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2818 						     (info), input_bfd, r_symndx,
2819 						     orig_addend, INSERT);
2820 	  if (! picrel)
2821 	    return FALSE;
2822 
2823 	  if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2824 						      osec, sym,
2825 						      rel->r_addend))
2826 	    {
2827 	      info->callbacks->einfo
2828 		(_("%H: relocation to `%s+%v'"
2829 		   " may have caused the error above\n"),
2830 		 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2831 	      return FALSE;
2832 	    }
2833 
2834 	  break;
2835 
2836 	default:
2837 	non_fdpic:
2838 	  picrel = NULL;
2839 	  if (h
2840 	      && ! FRVFDPIC_SYM_LOCAL (info, h)
2841 	      && _bfd_elf_section_offset (output_bfd, info, input_section,
2842 					  rel->r_offset) != (bfd_vma) -1)
2843 	    {
2844 	      info->callbacks->einfo
2845 		(_("%H: relocation references symbol"
2846 		   " not defined in the module\n"),
2847 		 input_bfd, input_section, rel->r_offset);
2848 	      return FALSE;
2849 	    }
2850 	  break;
2851 	}
2852 
2853       switch (r_type)
2854 	{
2855 	case R_FRV_GETTLSOFF:
2856 	case R_FRV_TLSDESC_VALUE:
2857 	case R_FRV_GOTTLSDESC12:
2858 	case R_FRV_GOTTLSDESCHI:
2859 	case R_FRV_GOTTLSDESCLO:
2860 	case R_FRV_TLSMOFF12:
2861 	case R_FRV_TLSMOFFHI:
2862 	case R_FRV_TLSMOFFLO:
2863 	case R_FRV_GOTTLSOFF12:
2864 	case R_FRV_GOTTLSOFFHI:
2865 	case R_FRV_GOTTLSOFFLO:
2866 	case R_FRV_TLSOFF:
2867 	case R_FRV_TLSDESC_RELAX:
2868 	case R_FRV_GETTLSOFF_RELAX:
2869 	case R_FRV_TLSOFF_RELAX:
2870 	case R_FRV_TLSMOFF:
2871 	  if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2872 	    relocation += tls_biased_base (info);
2873 	  break;
2874 
2875 	default:
2876 	  break;
2877 	}
2878 
2879       /* Try to apply TLS relaxations.  */
2880       if (1)
2881 	switch (r_type)
2882 	  {
2883 
2884 #define LOCAL_EXEC_P(info, picrel) \
2885   (bfd_link_executable (info) \
2886    && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2887 #define INITIAL_EXEC_P(info, picrel) \
2888   ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2889    && (picrel)->tlsoff_entry)
2890 
2891 #define IN_RANGE_FOR_OFST12_P(value) \
2892   ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2893 #define IN_RANGE_FOR_SETLOS_P(value) \
2894   ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2895 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2896   (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2897 
2898 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2899   (LOCAL_EXEC_P ((info), (picrel)) \
2900    && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2901 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2902   (INITIAL_EXEC_P ((info), (picrel)) \
2903    && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2904 
2905 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2906   (LOCAL_EXEC_P ((info), (picrel)))
2907 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2908   (INITIAL_EXEC_P ((info), (picrel)))
2909 
2910 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2911   (LOCAL_EXEC_P ((info), (picrel)) \
2912    && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2913 
2914 	  case R_FRV_GETTLSOFF:
2915 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2916 
2917 	    /* Is this a call instruction?  */
2918 	    if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2919 	      {
2920 		info->callbacks->einfo
2921 		  (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2922 		   input_bfd, input_section, rel->r_offset);
2923 		return FALSE;
2924 	      }
2925 
2926 	    if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2927 					      relocation + rel->r_addend))
2928 	      {
2929 		/* Replace the call instruction (except the packing bit)
2930 		   with setlos #tlsmofflo(symbol+offset), gr9.  */
2931 		insn &= (unsigned long)0x80000000;
2932 		insn |= (unsigned long)0x12fc0000;
2933 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2934 
2935 		r_type = R_FRV_TLSMOFFLO;
2936 		howto  = elf32_frv_howto_table + r_type;
2937 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2938 	      }
2939 
2940 	    else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2941 	      {
2942 		/* Replace the call instruction (except the packing bit)
2943 		   with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9.  */
2944 		insn &= (unsigned long)0x80000000;
2945 		insn |= (unsigned long)0x12c8f000;
2946 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2947 
2948 		r_type = R_FRV_GOTTLSOFF12;
2949 		howto  = elf32_frv_howto_table + r_type;
2950 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2951 	      }
2952 
2953 	    break;
2954 
2955 	  case R_FRV_GOTTLSDESC12:
2956 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2957 
2958 	    /* Is this an lddi instruction?  */
2959 	    if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2960 	      {
2961 		info->callbacks->einfo
2962 		  (_("%H: R_FRV_GOTTLSDESC12"
2963 		     " not applied to an lddi instruction\n"),
2964 		   input_bfd, input_section, rel->r_offset);
2965 		return FALSE;
2966 	      }
2967 
2968 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2969 					    relocation + rel->r_addend)
2970 		&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2971 						  info))
2972 	      {
2973 		/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2974 		   with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2975 		   Preserve the packing bit.  */
2976 		insn = (insn & (unsigned long)0x80000000)
2977 		  | ((insn + (unsigned long)0x02000000)
2978 		     & (unsigned long)0x7e000000);
2979 		insn |= (unsigned long)0x00fc0000;
2980 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2981 
2982 		r_type = R_FRV_TLSMOFFLO;
2983 		howto  = elf32_frv_howto_table + r_type;
2984 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2985 	      }
2986 
2987 	    else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2988 						 relocation + rel->r_addend))
2989 	      {
2990 		/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2991 		   with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2992 		   Preserve the packing bit.  */
2993 		insn = (insn & (unsigned long)0x80000000)
2994 		  | ((insn + (unsigned long)0x02000000)
2995 		     & (unsigned long)0x7e000000);
2996 		insn |= (unsigned long)0x00f80000;
2997 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2998 
2999 		r_type = R_FRV_TLSMOFFHI;
3000 		howto  = elf32_frv_howto_table + r_type;
3001 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3002 	      }
3003 
3004 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3005 	      {
3006 		/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3007 		   with ldi @(grB, #gottlsoff12(symbol+offset),
3008 		   gr<C+1>.  Preserve the packing bit.  If gottlsoff12
3009 		   overflows, we'll error out, but that's sort-of ok,
3010 		   since we'd started with gottlsdesc12, that's actually
3011 		   more demanding.  Compiling with -fPIE instead of
3012 		   -fpie would fix it; linking with --relax should fix
3013 		   it as well.  */
3014 		insn = (insn & (unsigned long)0x80cbf000)
3015 		  | ((insn + (unsigned long)0x02000000)
3016 		     & (unsigned long)0x7e000000);
3017 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3018 
3019 		r_type = R_FRV_GOTTLSOFF12;
3020 		howto  = elf32_frv_howto_table + r_type;
3021 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3022 	      }
3023 
3024 	    break;
3025 
3026 	  case R_FRV_GOTTLSDESCHI:
3027 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3028 
3029 	    /* Is this a sethi instruction?  */
3030 	    if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3031 	      {
3032 		info->callbacks->einfo
3033 		  (_("%H: R_FRV_GOTTLSDESCHI"
3034 		     " not applied to a sethi instruction\n"),
3035 		   input_bfd, input_section, rel->r_offset);
3036 		return FALSE;
3037 	      }
3038 
3039 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3040 					    relocation + rel->r_addend)
3041 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3042 		    && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3043 	      {
3044 		/* Replace sethi with a nop.  Preserve the packing bit.  */
3045 		insn &= (unsigned long)0x80000000;
3046 		insn |= (unsigned long)0x00880000;
3047 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3048 
3049 		/* Nothing to relocate.  */
3050 		continue;
3051 	      }
3052 
3053 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3054 	      {
3055 		/* Simply decay GOTTLSDESC to GOTTLSOFF.  */
3056 		r_type = R_FRV_GOTTLSOFFHI;
3057 		howto  = elf32_frv_howto_table + r_type;
3058 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3059 	      }
3060 
3061 	    break;
3062 
3063 	  case R_FRV_GOTTLSDESCLO:
3064 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3065 
3066 	    /* Is this a setlo or setlos instruction?  */
3067 	    if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3068 	      {
3069 		info->callbacks->einfo
3070 		  (_("%H: R_FRV_GOTTLSDESCLO"
3071 		     " not applied to a setlo or setlos instruction\n"),
3072 		   input_bfd, input_section, rel->r_offset);
3073 		return FALSE;
3074 	      }
3075 
3076 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3077 					    relocation + rel->r_addend)
3078 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3079 		    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3080 	      {
3081 		/* Replace setlo/setlos with a nop.  Preserve the
3082 		   packing bit.  */
3083 		insn &= (unsigned long)0x80000000;
3084 		insn |= (unsigned long)0x00880000;
3085 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3086 
3087 		/* Nothing to relocate.  */
3088 		continue;
3089 	      }
3090 
3091 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3092 	      {
3093 		/* If the corresponding sethi (if it exists) decayed
3094 		   to a nop, make sure this becomes (or already is) a
3095 		   setlos, not setlo.  */
3096 		if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3097 		  {
3098 		    insn |= (unsigned long)0x00080000;
3099 		    bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3100 		  }
3101 
3102 		/* Simply decay GOTTLSDESC to GOTTLSOFF.  */
3103 		r_type = R_FRV_GOTTLSOFFLO;
3104 		howto  = elf32_frv_howto_table + r_type;
3105 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3106 	      }
3107 
3108 	    break;
3109 
3110 	  case R_FRV_TLSDESC_RELAX:
3111 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3112 
3113 	    /* Is this an ldd instruction?  */
3114 	    if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3115 	      {
3116 		info->callbacks->einfo
3117 		  (_("%H: R_FRV_TLSDESC_RELAX"
3118 		     " not applied to an ldd instruction\n"),
3119 		   input_bfd, input_section, rel->r_offset);
3120 		return FALSE;
3121 	      }
3122 
3123 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3124 					    relocation + rel->r_addend)
3125 		&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3126 						  info))
3127 	      {
3128 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3129 		   with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3130 		   Preserve the packing bit.  */
3131 		insn = (insn & (unsigned long)0x80000000)
3132 		  | ((insn + (unsigned long)0x02000000)
3133 		     & (unsigned long)0x7e000000);
3134 		insn |= (unsigned long)0x00fc0000;
3135 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3136 
3137 		r_type = R_FRV_TLSMOFFLO;
3138 		howto  = elf32_frv_howto_table + r_type;
3139 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3140 	      }
3141 
3142 	    else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3143 						 relocation + rel->r_addend))
3144 	      {
3145 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3146 		   with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3147 		   Preserve the packing bit.  */
3148 		insn = (insn & (unsigned long)0x80000000)
3149 		  | ((insn + (unsigned long)0x02000000)
3150 		     & (unsigned long)0x7e000000);
3151 		insn |= (unsigned long)0x00f80000;
3152 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3153 
3154 		r_type = R_FRV_TLSMOFFHI;
3155 		howto  = elf32_frv_howto_table + r_type;
3156 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3157 	      }
3158 
3159 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3160 		     && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3161 	      {
3162 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3163 		   with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3164 		   Preserve the packing bit.  */
3165 		insn = (insn & (unsigned long)0x8003f000)
3166 		  | (unsigned long)0x00c80000
3167 		  | ((insn + (unsigned long)0x02000000)
3168 		     & (unsigned long)0x7e000000);
3169 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3170 
3171 		r_type = R_FRV_GOTTLSOFF12;
3172 		howto  = elf32_frv_howto_table + r_type;
3173 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3174 	      }
3175 
3176 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3177 	      {
3178 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3179 		   with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3180 		   Preserve the packing bit.  */
3181 		insn = (insn & (unsigned long)0x81ffffbf)
3182 		  | ((insn + (unsigned long)0x02000000)
3183 		     & (unsigned long)0x7e000000);
3184 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3185 
3186 		/* #tlsoff(symbol+offset) is just a relaxation
3187                     annotation, so there's nothing left to
3188                     relocate.  */
3189 		continue;
3190 	      }
3191 
3192 	    break;
3193 
3194 	  case R_FRV_GETTLSOFF_RELAX:
3195 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3196 
3197 	    /* Is this a calll or callil instruction?  */
3198 	    if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3199 	      {
3200 		info->callbacks->einfo
3201 		  (_("%H: R_FRV_GETTLSOFF_RELAX"
3202 		     " not applied to a calll instruction\n"),
3203 		   input_bfd, input_section, rel->r_offset);
3204 		return FALSE;
3205 	      }
3206 
3207 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3208 					    relocation + rel->r_addend)
3209 		&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3210 						  info))
3211 	      {
3212 		/* Replace calll with a nop.  Preserve the packing bit.  */
3213 		insn &= (unsigned long)0x80000000;
3214 		insn |= (unsigned long)0x00880000;
3215 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3216 
3217 		/* Nothing to relocate.  */
3218 		continue;
3219 	      }
3220 
3221 	    else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3222 						 relocation + rel->r_addend))
3223 	      {
3224 		/* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3225 		   Preserve the packing bit.  */
3226 		insn &= (unsigned long)0x80000000;
3227 		insn |= (unsigned long)0x12f40000;
3228 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3229 
3230 		r_type = R_FRV_TLSMOFFLO;
3231 		howto  = elf32_frv_howto_table + r_type;
3232 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3233 	      }
3234 
3235 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3236 	      {
3237 		/* Replace calll with a nop.  Preserve the packing bit.  */
3238 		insn &= (unsigned long)0x80000000;
3239 		insn |= (unsigned long)0x00880000;
3240 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3241 
3242 		/* Nothing to relocate.  */
3243 		continue;
3244 	      }
3245 
3246 	    break;
3247 
3248 	  case R_FRV_GOTTLSOFF12:
3249 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3250 
3251 	    /* Is this an ldi instruction?  */
3252 	    if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3253 	      {
3254 		info->callbacks->einfo
3255 		  (_("%H: R_FRV_GOTTLSOFF12"
3256 		     " not applied to an ldi instruction\n"),
3257 		   input_bfd, input_section, rel->r_offset);
3258 		return FALSE;
3259 	      }
3260 
3261 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3262 					      relocation + rel->r_addend))
3263 	      {
3264 		/* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3265 		   with setlos #tlsmofflo(symbol+offset), grC.
3266 		   Preserve the packing bit.  */
3267 		insn &= (unsigned long)0xfe000000;
3268 		insn |= (unsigned long)0x00fc0000;
3269 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3270 
3271 		r_type = R_FRV_TLSMOFFLO;
3272 		howto  = elf32_frv_howto_table + r_type;
3273 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3274 	      }
3275 
3276 	    break;
3277 
3278 	  case R_FRV_GOTTLSOFFHI:
3279 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3280 
3281 	    /* Is this a sethi instruction?  */
3282 	    if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3283 	      {
3284 		info->callbacks->einfo
3285 		  (_("%H: R_FRV_GOTTLSOFFHI"
3286 		     " not applied to a sethi instruction\n"),
3287 		   input_bfd, input_section, rel->r_offset);
3288 		return FALSE;
3289 	      }
3290 
3291 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3292 					      relocation + rel->r_addend)
3293 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3294 		    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3295 	      {
3296 		/* Replace sethi with a nop.  Preserve the packing bit.  */
3297 		insn &= (unsigned long)0x80000000;
3298 		insn |= (unsigned long)0x00880000;
3299 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3300 
3301 		/* Nothing to relocate.  */
3302 		continue;
3303 	      }
3304 
3305 	    break;
3306 
3307 	  case R_FRV_GOTTLSOFFLO:
3308 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3309 
3310 	    /* Is this a setlo or setlos instruction?  */
3311 	    if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3312 	      {
3313 		info->callbacks->einfo
3314 		  (_("%H: R_FRV_GOTTLSOFFLO"
3315 		     " not applied to a setlo or setlos instruction\n"),
3316 		   input_bfd, input_section, rel->r_offset);
3317 		return FALSE;
3318 	      }
3319 
3320 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3321 					      relocation + rel->r_addend)
3322 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3323 		    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3324 	      {
3325 		/* Replace setlo/setlos with a nop.  Preserve the
3326 		   packing bit.  */
3327 		insn &= (unsigned long)0x80000000;
3328 		insn |= (unsigned long)0x00880000;
3329 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3330 
3331 		/* Nothing to relocate.  */
3332 		continue;
3333 	      }
3334 
3335 	    break;
3336 
3337 	  case R_FRV_TLSOFF_RELAX:
3338 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3339 
3340 	    /* Is this an ld instruction?  */
3341 	    if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3342 	      {
3343 		info->callbacks->einfo
3344 		  (_("%H: R_FRV_TLSOFF_RELAX"
3345 		     " not applied to an ld instruction\n"),
3346 		   input_bfd, input_section, rel->r_offset);
3347 		return FALSE;
3348 	      }
3349 
3350 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3351 					      relocation + rel->r_addend))
3352 	      {
3353 		/* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3354 		   with setlos #tlsmofflo(symbol+offset), grC.
3355 		   Preserve the packing bit.  */
3356 		insn &= (unsigned long)0xfe000000;
3357 		insn |= (unsigned long)0x00fc0000;
3358 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3359 
3360 		r_type = R_FRV_TLSMOFFLO;
3361 		howto  = elf32_frv_howto_table + r_type;
3362 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3363 	      }
3364 
3365 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3366 		     && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3367 	      {
3368 		/* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3369 		   with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3370 		   Preserve the packing bit.  */
3371 		insn = (insn & (unsigned long)0xfe03f000)
3372 		  | (unsigned long)0x00c80000;
3373 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3374 
3375 		r_type = R_FRV_GOTTLSOFF12;
3376 		howto  = elf32_frv_howto_table + r_type;
3377 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3378 	      }
3379 
3380 	    break;
3381 
3382 	  case R_FRV_TLSMOFFHI:
3383 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3384 
3385 	    /* Is this a sethi instruction?  */
3386 	    if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3387 	      {
3388 		info->callbacks->einfo
3389 		  (_("%H: R_FRV_TLSMOFFHI"
3390 		     " not applied to a sethi instruction\n"),
3391 		   input_bfd, input_section, rel->r_offset);
3392 		return FALSE;
3393 	      }
3394 
3395 	    if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3396 					       info))
3397 	      {
3398 		/* Replace sethi with a nop.  Preserve the packing bit.  */
3399 		insn &= (unsigned long)0x80000000;
3400 		insn |= (unsigned long)0x00880000;
3401 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3402 
3403 		/* Nothing to relocate.  */
3404 		continue;
3405 	      }
3406 
3407 	    break;
3408 
3409 	  case R_FRV_TLSMOFFLO:
3410 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3411 
3412 	    /* Is this a setlo or setlos instruction?  */
3413 	    if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3414 	      {
3415 		info->callbacks->einfo
3416 		  (_("R_FRV_TLSMOFFLO"
3417 		     " not applied to a setlo or setlos instruction\n"),
3418 		   input_bfd, input_section, rel->r_offset);
3419 		return FALSE;
3420 	      }
3421 
3422 	    if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3423 					       info))
3424 	      /* If the corresponding sethi (if it exists) decayed
3425 		 to a nop, make sure this becomes (or already is) a
3426 		 setlos, not setlo.  */
3427 	      {
3428 		insn |= (unsigned long)0x00080000;
3429 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3430 	      }
3431 
3432 	    break;
3433 
3434 	    /*
3435 	      There's nothing to relax in these:
3436 		R_FRV_TLSDESC_VALUE
3437 		R_FRV_TLSOFF
3438 		R_FRV_TLSMOFF12
3439 		R_FRV_TLSMOFFHI
3440 		R_FRV_TLSMOFFLO
3441 		R_FRV_TLSMOFF
3442 	    */
3443 
3444 	  default:
3445 	    break;
3446 	  }
3447 
3448       switch (r_type)
3449 	{
3450 	case R_FRV_LABEL24:
3451 	  check_segment[0] = isec_segment;
3452 	  if (! IS_FDPIC (output_bfd))
3453 	    check_segment[1] = isec_segment;
3454 	  else if (picrel->plt)
3455 	    {
3456 	      relocation = frvfdpic_plt_section (info)->output_section->vma
3457 		+ frvfdpic_plt_section (info)->output_offset
3458 		+ picrel->plt_entry;
3459 	      check_segment[1] = plt_segment;
3460 	    }
3461 	  /* We don't want to warn on calls to undefined weak symbols,
3462 	     as calls to them must be protected by non-NULL tests
3463 	     anyway, and unprotected calls would invoke undefined
3464 	     behavior.  */
3465 	  else if (picrel->symndx == -1
3466 		   && picrel->d.h->root.type == bfd_link_hash_undefweak)
3467 	    check_segment[1] = check_segment[0];
3468 	  else
3469 	    check_segment[1] = sec
3470 	      ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3471 	      : (unsigned)-1;
3472 	  break;
3473 
3474 	case R_FRV_GOT12:
3475 	case R_FRV_GOTHI:
3476 	case R_FRV_GOTLO:
3477 	  relocation = picrel->got_entry;
3478 	  check_segment[0] = check_segment[1] = got_segment;
3479 	  break;
3480 
3481 	case R_FRV_FUNCDESC_GOT12:
3482 	case R_FRV_FUNCDESC_GOTHI:
3483 	case R_FRV_FUNCDESC_GOTLO:
3484 	  relocation = picrel->fdgot_entry;
3485 	  check_segment[0] = check_segment[1] = got_segment;
3486 	  break;
3487 
3488 	case R_FRV_GOTOFFHI:
3489 	case R_FRV_GOTOFF12:
3490 	case R_FRV_GOTOFFLO:
3491 	  relocation -= frvfdpic_got_section (info)->output_section->vma
3492 	    + frvfdpic_got_section (info)->output_offset
3493 	    + frvfdpic_got_initial_offset (info);
3494 	  check_segment[0] = got_segment;
3495 	  check_segment[1] = sec
3496 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3497 	    : (unsigned)-1;
3498 	  break;
3499 
3500 	case R_FRV_FUNCDESC_GOTOFF12:
3501 	case R_FRV_FUNCDESC_GOTOFFHI:
3502 	case R_FRV_FUNCDESC_GOTOFFLO:
3503 	  relocation = picrel->fd_entry;
3504 	  check_segment[0] = check_segment[1] = got_segment;
3505 	  break;
3506 
3507 	case R_FRV_FUNCDESC:
3508 	  {
3509 	    int dynindx;
3510 	    bfd_vma addend = rel->r_addend;
3511 
3512 	    if (! (h && h->root.type == bfd_link_hash_undefweak
3513 		   && FRVFDPIC_SYM_LOCAL (info, h)))
3514 	      {
3515 		/* If the symbol is dynamic and there may be dynamic
3516 		   symbol resolution because we are or are linked with a
3517 		   shared library, emit a FUNCDESC relocation such that
3518 		   the dynamic linker will allocate the function
3519 		   descriptor.  If the symbol needs a non-local function
3520 		   descriptor but binds locally (e.g., its visibility is
3521 		   protected, emit a dynamic relocation decayed to
3522 		   section+offset.  */
3523 		if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3524 		    && FRVFDPIC_SYM_LOCAL (info, h)
3525 		    && !bfd_link_pde (info))
3526 		  {
3527 		    dynindx = elf_section_data (h->root.u.def.section
3528 						->output_section)->dynindx;
3529 		    addend += h->root.u.def.section->output_offset
3530 		      + h->root.u.def.value;
3531 		  }
3532 		else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3533 		  {
3534 		    if (addend)
3535 		      {
3536 			info->callbacks->einfo
3537 			  (_("%H: R_FRV_FUNCDESC references dynamic symbol"
3538 			     " with nonzero addend\n"),
3539 			   input_bfd, input_section, rel->r_offset);
3540 			return FALSE;
3541 		      }
3542 		    dynindx = h->dynindx;
3543 		  }
3544 		else
3545 		  {
3546 		    /* Otherwise, we know we have a private function
3547 		       descriptor, so reference it directly.  */
3548 		    BFD_ASSERT (picrel->privfd);
3549 		    r_type = R_FRV_32;
3550 		    dynindx = elf_section_data (frvfdpic_got_section (info)
3551 						->output_section)->dynindx;
3552 		    addend = frvfdpic_got_section (info)->output_offset
3553 		      + frvfdpic_got_initial_offset (info)
3554 		      + picrel->fd_entry;
3555 		  }
3556 
3557 		/* If there is room for dynamic symbol resolution, emit
3558 		   the dynamic relocation.  However, if we're linking an
3559 		   executable at a fixed location, we won't have emitted a
3560 		   dynamic symbol entry for the got section, so idx will
3561 		   be zero, which means we can and should compute the
3562 		   address of the private descriptor ourselves.  */
3563 		if (bfd_link_pde (info)
3564 		    && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3565 		  {
3566 		    addend += frvfdpic_got_section (info)->output_section->vma;
3567 		    if ((bfd_get_section_flags (output_bfd,
3568 						input_section->output_section)
3569 			 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3570 		      {
3571 			bfd_vma offset;
3572 
3573 			if (_frvfdpic_osec_readonly_p (output_bfd,
3574 						       input_section
3575 						       ->output_section))
3576 			  {
3577 			    info->callbacks->einfo
3578 			      (_("%H: cannot emit fixups"
3579 				 " in read-only section\n"),
3580 			       input_bfd, input_section, rel->r_offset);
3581 			    return FALSE;
3582 			  }
3583 
3584 			offset = _bfd_elf_section_offset
3585 			  (output_bfd, info,
3586 			   input_section, rel->r_offset);
3587 
3588 			if (offset != (bfd_vma)-1)
3589 			  _frvfdpic_add_rofixup (output_bfd,
3590 						 frvfdpic_gotfixup_section
3591 						 (info),
3592 						 offset + input_section
3593 						 ->output_section->vma
3594 						 + input_section->output_offset,
3595 						 picrel);
3596 		      }
3597 		  }
3598 		else if ((bfd_get_section_flags (output_bfd,
3599 						 input_section->output_section)
3600 			  & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3601 		  {
3602 		    bfd_vma offset;
3603 
3604 		    if (_frvfdpic_osec_readonly_p (output_bfd,
3605 						   input_section
3606 						   ->output_section))
3607 		      {
3608 			info->callbacks->einfo
3609 			  (_("%H: cannot emit dynamic relocations"
3610 			     " in read-only section\n"),
3611 			   input_bfd, input_section, rel->r_offset);
3612 			return FALSE;
3613 		      }
3614 
3615 		    offset = _bfd_elf_section_offset
3616 		      (output_bfd, info,
3617 		       input_section, rel->r_offset);
3618 
3619 		    if (offset != (bfd_vma)-1)
3620 		      _frvfdpic_add_dyn_reloc (output_bfd,
3621 					       frvfdpic_gotrel_section (info),
3622 					       offset + input_section
3623 					       ->output_section->vma
3624 					       + input_section->output_offset,
3625 					       r_type, dynindx, addend, picrel);
3626 		  }
3627 		else
3628 		  addend += frvfdpic_got_section (info)->output_section->vma;
3629 	      }
3630 
3631 	    /* We want the addend in-place because dynamic
3632 	       relocations are REL.  Setting relocation to it should
3633 	       arrange for it to be installed.  */
3634 	    relocation = addend - rel->r_addend;
3635 	  }
3636 	  check_segment[0] = check_segment[1] = got_segment;
3637 	  break;
3638 
3639 	case R_FRV_32:
3640 	  if (! IS_FDPIC (output_bfd))
3641 	    {
3642 	      check_segment[0] = check_segment[1] = -1;
3643 	      break;
3644 	    }
3645 	  /* Fall through.  */
3646 	case R_FRV_FUNCDESC_VALUE:
3647 	  {
3648 	    int dynindx;
3649 	    bfd_vma addend = rel->r_addend;
3650 
3651 	    /* If the symbol is dynamic but binds locally, use
3652 	       section+offset.  */
3653 	    if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3654 	      {
3655 		if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3656 		  {
3657 		    info->callbacks->einfo
3658 		      (_("%H: R_FRV_FUNCDESC_VALUE"
3659 			 " references dynamic symbol with nonzero addend\n"),
3660 		       input_bfd, input_section, rel->r_offset);
3661 		    return FALSE;
3662 		  }
3663 		dynindx = h->dynindx;
3664 	      }
3665 	    else
3666 	      {
3667 		if (h)
3668 		  addend += h->root.u.def.value;
3669 		else
3670 		  addend += sym->st_value;
3671 		if (osec)
3672 		  addend += osec->output_offset;
3673 		if (osec && osec->output_section
3674 		    && ! bfd_is_abs_section (osec->output_section)
3675 		    && ! bfd_is_und_section (osec->output_section))
3676 		  dynindx = elf_section_data (osec->output_section)->dynindx;
3677 		else
3678 		  dynindx = 0;
3679 	      }
3680 
3681 	    /* If we're linking an executable at a fixed address, we
3682 	       can omit the dynamic relocation as long as the symbol
3683 	       is defined in the current link unit (which is implied
3684 	       by its output section not being NULL).  */
3685 	    if (bfd_link_pde (info)
3686 		&& (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3687 	      {
3688 		if (osec)
3689 		  addend += osec->output_section->vma;
3690 		if (IS_FDPIC (input_bfd)
3691 		    && (bfd_get_section_flags (output_bfd,
3692 					       input_section->output_section)
3693 			& (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3694 		  {
3695 		    if (_frvfdpic_osec_readonly_p (output_bfd,
3696 						   input_section
3697 						   ->output_section))
3698 		      {
3699 			info->callbacks->einfo
3700 			  (_("%H: cannot emit fixups in read-only section\n"),
3701 			   input_bfd, input_section, rel->r_offset);
3702 			return FALSE;
3703 		      }
3704 		    if (!h || h->root.type != bfd_link_hash_undefweak)
3705 		      {
3706 			bfd_vma offset = _bfd_elf_section_offset
3707 			  (output_bfd, info,
3708 			   input_section, rel->r_offset);
3709 
3710 			if (offset != (bfd_vma)-1)
3711 			  {
3712 			    _frvfdpic_add_rofixup (output_bfd,
3713 						   frvfdpic_gotfixup_section
3714 						   (info),
3715 						   offset + input_section
3716 						   ->output_section->vma
3717 						   + input_section->output_offset,
3718 						   picrel);
3719 			    if (r_type == R_FRV_FUNCDESC_VALUE)
3720 			      _frvfdpic_add_rofixup
3721 				(output_bfd,
3722 				 frvfdpic_gotfixup_section (info),
3723 				 offset
3724 				 + input_section->output_section->vma
3725 				 + input_section->output_offset + 4, picrel);
3726 			  }
3727 		      }
3728 		  }
3729 	      }
3730 	    else
3731 	      {
3732 		if ((bfd_get_section_flags (output_bfd,
3733 					    input_section->output_section)
3734 		     & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3735 		  {
3736 		    bfd_vma offset;
3737 
3738 		    if (_frvfdpic_osec_readonly_p (output_bfd,
3739 						   input_section
3740 						   ->output_section))
3741 		      {
3742 			info->callbacks->einfo
3743 			  (_("%H: cannot emit dynamic relocations"
3744 			     " in read-only section\n"),
3745 			   input_bfd, input_section, rel->r_offset);
3746 			return FALSE;
3747 		      }
3748 
3749 		    offset = _bfd_elf_section_offset
3750 		      (output_bfd, info,
3751 		       input_section, rel->r_offset);
3752 
3753 		    if (offset != (bfd_vma)-1)
3754 		      _frvfdpic_add_dyn_reloc (output_bfd,
3755 					       frvfdpic_gotrel_section (info),
3756 					       offset + input_section
3757 					       ->output_section->vma
3758 					       + input_section->output_offset,
3759 					       r_type, dynindx, addend, picrel);
3760 		  }
3761 		else if (osec)
3762 		  addend += osec->output_section->vma;
3763 		/* We want the addend in-place because dynamic
3764 		   relocations are REL.  Setting relocation to it
3765 		   should arrange for it to be installed.  */
3766 		relocation = addend - rel->r_addend;
3767 	      }
3768 
3769 	    if (r_type == R_FRV_FUNCDESC_VALUE)
3770 	      {
3771 		/* If we've omitted the dynamic relocation, just emit
3772 		   the fixed addresses of the symbol and of the local
3773 		   GOT base offset.  */
3774 		if (bfd_link_pde (info)
3775 		    && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3776 		  bfd_put_32 (output_bfd,
3777 			      frvfdpic_got_section (info)->output_section->vma
3778 			      + frvfdpic_got_section (info)->output_offset
3779 			      + frvfdpic_got_initial_offset (info),
3780 			      contents + rel->r_offset + 4);
3781 		else
3782 		  /* A function descriptor used for lazy or local
3783 		     resolving is initialized such that its high word
3784 		     contains the output section index in which the
3785 		     PLT entries are located, and the low word
3786 		     contains the offset of the lazy PLT entry entry
3787 		     point into that section.  */
3788 		  bfd_put_32 (output_bfd,
3789 			      h && ! FRVFDPIC_SYM_LOCAL (info, h)
3790 			      ? 0
3791 			      : _frvfdpic_osec_to_segment (output_bfd,
3792 							   sec
3793 							   ->output_section),
3794 			      contents + rel->r_offset + 4);
3795 	      }
3796 	  }
3797 	  check_segment[0] = check_segment[1] = got_segment;
3798 	  break;
3799 
3800 	case R_FRV_GPREL12:
3801 	case R_FRV_GPRELU12:
3802 	case R_FRV_GPREL32:
3803 	case R_FRV_GPRELHI:
3804 	case R_FRV_GPRELLO:
3805 	  check_segment[0] = gprel_segment;
3806 	  check_segment[1] = sec
3807 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3808 	    : (unsigned)-1;
3809 	  break;
3810 
3811 	case R_FRV_GETTLSOFF:
3812 	  relocation = frvfdpic_plt_section (info)->output_section->vma
3813 	    + frvfdpic_plt_section (info)->output_offset
3814 	    + picrel->tlsplt_entry;
3815 	  BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3816 		      && picrel->tlsdesc_entry);
3817 	  check_segment[0] = isec_segment;
3818 	  check_segment[1] = plt_segment;
3819 	  break;
3820 
3821 	case R_FRV_GOTTLSDESC12:
3822 	case R_FRV_GOTTLSDESCHI:
3823 	case R_FRV_GOTTLSDESCLO:
3824 	  BFD_ASSERT (picrel->tlsdesc_entry);
3825 	  relocation = picrel->tlsdesc_entry;
3826 	  check_segment[0] = tls_segment;
3827 	  check_segment[1] = sec
3828 	    && ! bfd_is_abs_section (sec)
3829 	    && ! bfd_is_und_section (sec)
3830 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3831 	    : tls_segment;
3832 	  break;
3833 
3834 	case R_FRV_TLSMOFF12:
3835 	case R_FRV_TLSMOFFHI:
3836 	case R_FRV_TLSMOFFLO:
3837 	case R_FRV_TLSMOFF:
3838 	  check_segment[0] = tls_segment;
3839 	  if (! sec)
3840 	    check_segment[1] = -1;
3841 	  else if (bfd_is_abs_section (sec)
3842 		   || bfd_is_und_section (sec))
3843 	    {
3844 	      relocation = 0;
3845 	      check_segment[1] = tls_segment;
3846 	    }
3847 	  else if (sec->output_section)
3848 	    {
3849 	      relocation -= tls_biased_base (info);
3850 	      check_segment[1] =
3851 		_frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3852 	    }
3853 	  else
3854 	    check_segment[1] = -1;
3855 	  break;
3856 
3857 	case R_FRV_GOTTLSOFF12:
3858 	case R_FRV_GOTTLSOFFHI:
3859 	case R_FRV_GOTTLSOFFLO:
3860 	  BFD_ASSERT (picrel->tlsoff_entry);
3861 	  relocation = picrel->tlsoff_entry;
3862 	  check_segment[0] = tls_segment;
3863 	  check_segment[1] = sec
3864 	    && ! bfd_is_abs_section (sec)
3865 	    && ! bfd_is_und_section (sec)
3866 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3867 	    : tls_segment;
3868 	  break;
3869 
3870 	case R_FRV_TLSDESC_VALUE:
3871 	case R_FRV_TLSOFF:
3872 	  /* These shouldn't be present in input object files.  */
3873 	  check_segment[0] = check_segment[1] = isec_segment;
3874 	  break;
3875 
3876 	case R_FRV_TLSDESC_RELAX:
3877 	case R_FRV_GETTLSOFF_RELAX:
3878 	case R_FRV_TLSOFF_RELAX:
3879 	  /* These are just annotations for relaxation, nothing to do
3880 	     here.  */
3881 	  continue;
3882 
3883 	default:
3884 	  check_segment[0] = isec_segment;
3885 	  check_segment[1] = sec
3886 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3887 	    : (unsigned)-1;
3888 	  break;
3889 	}
3890 
3891       if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3892 	{
3893 	  /* If you take this out, remove the #error from fdpic-static-6.d
3894 	     in the ld testsuite.  */
3895 	  /* This helps catch problems in GCC while we can't do more
3896 	     than static linking.  The idea is to test whether the
3897 	     input file basename is crt0.o only once.  */
3898 	  if (silence_segment_error == 1)
3899 	    silence_segment_error =
3900 	      (strlen (input_bfd->filename) == 6
3901 	       && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3902 	      || (strlen (input_bfd->filename) > 6
3903 		  && filename_cmp (input_bfd->filename
3904 				   + strlen (input_bfd->filename) - 7,
3905 			     "/crt0.o") == 0)
3906 	      ? -1 : 0;
3907 	  if (!silence_segment_error
3908 	      /* We don't want duplicate errors for undefined
3909 		 symbols.  */
3910 	      && !(picrel && picrel->symndx == -1
3911 		   && picrel->d.h->root.type == bfd_link_hash_undefined))
3912 	    {
3913 	      info->callbacks->einfo
3914 		(_("%H: reloc against `%s' references a different segment\n"),
3915 		 input_bfd, input_section, rel->r_offset, name);
3916 	    }
3917 	  if (!silence_segment_error && bfd_link_pic (info))
3918 	    return FALSE;
3919 	  elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3920 	}
3921 
3922       switch (r_type)
3923 	{
3924 	case R_FRV_GOTOFFHI:
3925 	case R_FRV_TLSMOFFHI:
3926 	  /* We need the addend to be applied before we shift the
3927 	     value right.  */
3928 	  relocation += rel->r_addend;
3929 	  /* Fall through.  */
3930 	case R_FRV_GOTHI:
3931 	case R_FRV_FUNCDESC_GOTHI:
3932 	case R_FRV_FUNCDESC_GOTOFFHI:
3933 	case R_FRV_GOTTLSOFFHI:
3934 	case R_FRV_GOTTLSDESCHI:
3935 	  relocation >>= 16;
3936 	  /* Fall through.  */
3937 
3938 	case R_FRV_GOTLO:
3939 	case R_FRV_FUNCDESC_GOTLO:
3940 	case R_FRV_GOTOFFLO:
3941 	case R_FRV_FUNCDESC_GOTOFFLO:
3942 	case R_FRV_GOTTLSOFFLO:
3943 	case R_FRV_GOTTLSDESCLO:
3944 	case R_FRV_TLSMOFFLO:
3945 	  relocation &= 0xffff;
3946 	  break;
3947 
3948 	default:
3949 	  break;
3950 	}
3951 
3952       switch (r_type)
3953 	{
3954 	case R_FRV_LABEL24:
3955 	  if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3956 	    break;
3957 	  /* Fall through.  */
3958 
3959 	  /* When referencing a GOT entry, a function descriptor or a
3960 	     PLT, we don't want the addend to apply to the reference,
3961 	     but rather to the referenced symbol.  The actual entry
3962 	     will have already been created taking the addend into
3963 	     account, so cancel it out here.  */
3964 	case R_FRV_GOT12:
3965 	case R_FRV_GOTHI:
3966 	case R_FRV_GOTLO:
3967 	case R_FRV_FUNCDESC_GOT12:
3968 	case R_FRV_FUNCDESC_GOTHI:
3969 	case R_FRV_FUNCDESC_GOTLO:
3970 	case R_FRV_FUNCDESC_GOTOFF12:
3971 	case R_FRV_FUNCDESC_GOTOFFHI:
3972 	case R_FRV_FUNCDESC_GOTOFFLO:
3973 	case R_FRV_GETTLSOFF:
3974 	case R_FRV_GOTTLSDESC12:
3975 	case R_FRV_GOTTLSDESCHI:
3976 	case R_FRV_GOTTLSDESCLO:
3977 	case R_FRV_GOTTLSOFF12:
3978 	case R_FRV_GOTTLSOFFHI:
3979 	case R_FRV_GOTTLSOFFLO:
3980 	  /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3981 	     here, since we do want to apply the addend to the others.
3982 	     Note that we've applied the addend to GOTOFFHI before we
3983 	     shifted it right.  */
3984 	case R_FRV_GOTOFFHI:
3985 	case R_FRV_TLSMOFFHI:
3986 	  relocation -= rel->r_addend;
3987 	  break;
3988 
3989 	default:
3990 	  break;
3991 	}
3992 
3993      if (r_type == R_FRV_HI16)
3994        r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3995 
3996      else if (r_type == R_FRV_LO16)
3997        r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
3998 
3999      else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4000        r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4001 				       contents, relocation);
4002 
4003      else if (r_type == R_FRV_GPREL12)
4004        r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4005 				       contents, relocation);
4006 
4007      else if (r_type == R_FRV_GPRELU12)
4008        r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4009 					contents, relocation);
4010 
4011      else if (r_type == R_FRV_GPRELLO)
4012        r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4013 				       contents, relocation);
4014 
4015      else if (r_type == R_FRV_GPRELHI)
4016        r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4017 				       contents, relocation);
4018 
4019      else if (r_type == R_FRV_TLSOFF
4020 	      || r_type == R_FRV_TLSDESC_VALUE)
4021        r = bfd_reloc_notsupported;
4022 
4023      else
4024        r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4025 				    rel, relocation);
4026 
4027       if (r != bfd_reloc_ok)
4028 	{
4029 	  const char * msg = (const char *) NULL;
4030 
4031 	  switch (r)
4032 	    {
4033 	    case bfd_reloc_overflow:
4034 	      (*info->callbacks->reloc_overflow)
4035 		(info, (h ? &h->root : NULL), name, howto->name,
4036 		 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4037 	      break;
4038 
4039 	    case bfd_reloc_undefined:
4040 	      (*info->callbacks->undefined_symbol)
4041 		(info, name, input_bfd, input_section, rel->r_offset, TRUE);
4042 	      break;
4043 
4044 	    case bfd_reloc_outofrange:
4045 	      msg = _("internal error: out of range error");
4046 	      break;
4047 
4048 	    case bfd_reloc_notsupported:
4049 	      msg = _("internal error: unsupported relocation error");
4050 	      break;
4051 
4052 	    case bfd_reloc_dangerous:
4053 	      msg = _("internal error: dangerous relocation");
4054 	      break;
4055 
4056 	    default:
4057 	      msg = _("internal error: unknown error");
4058 	      break;
4059 	    }
4060 
4061 	  if (msg)
4062 	    {
4063 	      info->callbacks->einfo
4064 		(_("%H: reloc against `%s': %s\n"),
4065 		 input_bfd, input_section, rel->r_offset, name, msg);
4066 	      return FALSE;
4067 	    }
4068 	}
4069     }
4070 
4071   return TRUE;
4072 }
4073 
4074 /* Return the section that should be marked against GC for a given
4075    relocation.  */
4076 
4077 static asection *
elf32_frv_gc_mark_hook(asection * sec,struct bfd_link_info * info,Elf_Internal_Rela * rel,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)4078 elf32_frv_gc_mark_hook (asection *sec,
4079 			struct bfd_link_info *info,
4080 			Elf_Internal_Rela *rel,
4081 			struct elf_link_hash_entry *h,
4082 			Elf_Internal_Sym *sym)
4083 {
4084   if (h != NULL)
4085     switch (ELF32_R_TYPE (rel->r_info))
4086       {
4087       case R_FRV_GNU_VTINHERIT:
4088       case R_FRV_GNU_VTENTRY:
4089 	return NULL;
4090       }
4091 
4092   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4093 }
4094 
4095 /* Hook called by the linker routine which adds symbols from an object
4096    file.  We use it to put .comm items in .scomm, and not .comm.  */
4097 
4098 static bfd_boolean
elf32_frv_add_symbol_hook(bfd * abfd,struct bfd_link_info * info,Elf_Internal_Sym * sym,const char ** namep ATTRIBUTE_UNUSED,flagword * flagsp ATTRIBUTE_UNUSED,asection ** secp,bfd_vma * valp)4099 elf32_frv_add_symbol_hook (bfd *abfd,
4100 			   struct bfd_link_info *info,
4101 			   Elf_Internal_Sym *sym,
4102 			   const char **namep ATTRIBUTE_UNUSED,
4103 			   flagword *flagsp ATTRIBUTE_UNUSED,
4104 			   asection **secp,
4105 			   bfd_vma *valp)
4106 {
4107   if (sym->st_shndx == SHN_COMMON
4108       && !bfd_link_relocatable (info)
4109       && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4110     {
4111       /* Common symbols less than or equal to -G nn bytes are
4112 	 automatically put into .sbss.  */
4113 
4114       asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4115 
4116       if (scomm == NULL)
4117 	{
4118 	  scomm = bfd_make_section_with_flags (abfd, ".scommon",
4119 					       (SEC_ALLOC
4120 						| SEC_IS_COMMON
4121 						| SEC_LINKER_CREATED));
4122 	  if (scomm == NULL)
4123 	    return FALSE;
4124 	}
4125 
4126       *secp = scomm;
4127       *valp = sym->st_size;
4128     }
4129 
4130   return TRUE;
4131 }
4132 
4133 /* We need dynamic symbols for every section, since segments can
4134    relocate independently.  */
4135 static bfd_boolean
_frvfdpic_link_omit_section_dynsym(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,asection * p ATTRIBUTE_UNUSED)4136 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4137 				    struct bfd_link_info *info
4138 				    ATTRIBUTE_UNUSED,
4139 				    asection *p ATTRIBUTE_UNUSED)
4140 {
4141   switch (elf_section_data (p)->this_hdr.sh_type)
4142     {
4143     case SHT_PROGBITS:
4144     case SHT_NOBITS:
4145       /* If sh_type is yet undecided, assume it could be
4146 	 SHT_PROGBITS/SHT_NOBITS.  */
4147     case SHT_NULL:
4148       return FALSE;
4149 
4150       /* There shouldn't be section relative relocations
4151 	 against any other section.  */
4152     default:
4153       return TRUE;
4154     }
4155 }
4156 
4157 /* Create  a .got section, as well as its additional info field.  This
4158    is almost entirely copied from
4159    elflink.c:_bfd_elf_create_got_section().  */
4160 
4161 static bfd_boolean
_frv_create_got_section(bfd * abfd,struct bfd_link_info * info)4162 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4163 {
4164   flagword flags, pltflags;
4165   asection *s;
4166   struct elf_link_hash_entry *h;
4167   struct bfd_link_hash_entry *bh;
4168   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4169   int ptralign;
4170   int offset;
4171 
4172   /* This function may be called more than once.  */
4173   s = bfd_get_linker_section (abfd, ".got");
4174   if (s != NULL)
4175     return TRUE;
4176 
4177   /* Machine specific: although pointers are 32-bits wide, we want the
4178      GOT to be aligned to a 64-bit boundary, such that function
4179      descriptors in it can be accessed with 64-bit loads and
4180      stores.  */
4181   ptralign = 3;
4182 
4183   flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4184 	   | SEC_LINKER_CREATED);
4185   pltflags = flags;
4186 
4187   s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4188   if (s == NULL
4189       || !bfd_set_section_alignment (abfd, s, ptralign))
4190     return FALSE;
4191 
4192   if (bed->want_got_plt)
4193     {
4194       s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
4195       if (s == NULL
4196 	  || !bfd_set_section_alignment (abfd, s, ptralign))
4197 	return FALSE;
4198     }
4199 
4200   if (bed->want_got_sym)
4201     {
4202       /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4203 	 (or .got.plt) section.  We don't do this in the linker script
4204 	 because we don't want to define the symbol if we are not creating
4205 	 a global offset table.  */
4206       h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4207       elf_hash_table (info)->hgot = h;
4208       if (h == NULL)
4209 	return FALSE;
4210 
4211       /* Machine-specific: we want the symbol for executables as
4212 	 well.  */
4213       if (! bfd_elf_link_record_dynamic_symbol (info, h))
4214 	return FALSE;
4215     }
4216 
4217   /* The first bit of the global offset table is the header.  */
4218   s->size += bed->got_header_size;
4219 
4220   /* This is the machine-specific part.  Create and initialize section
4221      data for the got.  */
4222   if (IS_FDPIC (abfd))
4223     {
4224       frvfdpic_got_section (info) = s;
4225       frvfdpic_relocs_info (info) = htab_try_create (1,
4226 						     frvfdpic_relocs_info_hash,
4227 						     frvfdpic_relocs_info_eq,
4228 						     (htab_del) NULL);
4229       if (! frvfdpic_relocs_info (info))
4230 	return FALSE;
4231 
4232       s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4233 					      (flags | SEC_READONLY));
4234       if (s == NULL
4235 	  || ! bfd_set_section_alignment (abfd, s, 2))
4236 	return FALSE;
4237 
4238       frvfdpic_gotrel_section (info) = s;
4239 
4240       /* Machine-specific.  */
4241       s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4242 					      (flags | SEC_READONLY));
4243       if (s == NULL
4244 	  || ! bfd_set_section_alignment (abfd, s, 2))
4245 	return FALSE;
4246 
4247       frvfdpic_gotfixup_section (info) = s;
4248       offset = -2048;
4249       flags = BSF_GLOBAL;
4250     }
4251   else
4252     {
4253       offset = 2048;
4254       flags = BSF_GLOBAL | BSF_WEAK;
4255     }
4256 
4257   /* Define _gp in .rofixup, for FDPIC, or .got otherwise.  If it
4258      turns out that we're linking with a different linker script, the
4259      linker script will override it.  */
4260   bh = NULL;
4261   if (!(_bfd_generic_link_add_one_symbol
4262 	(info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4263 	 bed->collect, &bh)))
4264     return FALSE;
4265   h = (struct elf_link_hash_entry *) bh;
4266   h->def_regular = 1;
4267   h->type = STT_OBJECT;
4268   /* h->other = STV_HIDDEN; */ /* Should we?  */
4269 
4270   /* Machine-specific: we want the symbol for executables as well.  */
4271   if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4272     return FALSE;
4273 
4274   if (!IS_FDPIC (abfd))
4275     return TRUE;
4276 
4277   /* FDPIC supports Thread Local Storage, and this may require a
4278      procedure linkage table for TLS PLT entries.  */
4279 
4280   /* This is mostly copied from
4281      elflink.c:_bfd_elf_create_dynamic_sections().  */
4282 
4283   flags = pltflags;
4284   pltflags |= SEC_CODE;
4285   if (bed->plt_not_loaded)
4286     pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4287   if (bed->plt_readonly)
4288     pltflags |= SEC_READONLY;
4289 
4290   s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4291   if (s == NULL
4292       || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4293     return FALSE;
4294   /* FRV-specific: remember it.  */
4295   frvfdpic_plt_section (info) = s;
4296 
4297   /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4298      .plt section.  */
4299   if (bed->want_plt_sym)
4300     {
4301       h = _bfd_elf_define_linkage_sym (abfd, info, s,
4302 				       "_PROCEDURE_LINKAGE_TABLE_");
4303       elf_hash_table (info)->hplt = h;
4304       if (h == NULL)
4305 	return FALSE;
4306     }
4307 
4308   /* FRV-specific: we want rel relocations for the plt.  */
4309   s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4310 					  flags | SEC_READONLY);
4311   if (s == NULL
4312       || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4313     return FALSE;
4314   /* FRV-specific: remember it.  */
4315   frvfdpic_pltrel_section (info) = s;
4316 
4317   return TRUE;
4318 }
4319 
4320 /* Make sure the got and plt sections exist, and that our pointers in
4321    the link hash table point to them.  */
4322 
4323 static bfd_boolean
elf32_frvfdpic_create_dynamic_sections(bfd * abfd,struct bfd_link_info * info)4324 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4325 {
4326   /* This is mostly copied from
4327      elflink.c:_bfd_elf_create_dynamic_sections().  */
4328   flagword flags;
4329   asection *s;
4330   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4331 
4332   flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4333 	   | SEC_LINKER_CREATED);
4334 
4335   /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4336      .rel[a].bss sections.  */
4337 
4338   /* FRV-specific: we want to create the GOT and the PLT in the FRV
4339      way.  */
4340   if (! _frv_create_got_section (abfd, info))
4341     return FALSE;
4342 
4343   /* FRV-specific: make sure we created everything we wanted.  */
4344   BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4345 	      && frvfdpic_gotfixup_section (info)
4346 	      && frvfdpic_plt_section (info)
4347 	      && frvfdpic_pltrel_section (info));
4348 
4349   if (bed->want_dynbss)
4350     {
4351       /* The .dynbss section is a place to put symbols which are defined
4352 	 by dynamic objects, are referenced by regular objects, and are
4353 	 not functions.  We must allocate space for them in the process
4354 	 image and use a R_*_COPY reloc to tell the dynamic linker to
4355 	 initialize them at run time.  The linker script puts the .dynbss
4356 	 section into the .bss section of the final image.  */
4357       s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4358 					      SEC_ALLOC | SEC_LINKER_CREATED);
4359       if (s == NULL)
4360 	return FALSE;
4361 
4362       /* The .rel[a].bss section holds copy relocs.  This section is not
4363      normally needed.  We need to create it here, though, so that the
4364      linker will map it to an output section.  We can't just create it
4365      only if we need it, because we will not know whether we need it
4366      until we have seen all the input files, and the first time the
4367      main linker code calls BFD after examining all the input files
4368      (size_dynamic_sections) the input sections have already been
4369      mapped to the output sections.  If the section turns out not to
4370      be needed, we can discard it later.  We will never need this
4371      section when generating a shared object, since they do not use
4372      copy relocs.  */
4373       if (! bfd_link_pic (info))
4374 	{
4375 	  s = bfd_make_section_anyway_with_flags (abfd,
4376 						  (bed->default_use_rela_p
4377 						   ? ".rela.bss" : ".rel.bss"),
4378 						  flags | SEC_READONLY);
4379 	  if (s == NULL
4380 	      || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4381 	    return FALSE;
4382 	}
4383     }
4384 
4385   return TRUE;
4386 }
4387 
4388 /* Compute the total GOT and PLT size required by each symbol in each
4389    range.  Symbols may require up to 4 words in the GOT: an entry
4390    pointing to the symbol, an entry pointing to its function
4391    descriptor, and a private function descriptors taking two
4392    words.  */
4393 
4394 static void
_frvfdpic_count_nontls_entries(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo)4395 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4396 				struct _frvfdpic_dynamic_got_info *dinfo)
4397 {
4398   /* Allocate space for a GOT entry pointing to the symbol.  */
4399   if (entry->got12)
4400     dinfo->got12 += 4;
4401   else if (entry->gotlos)
4402     dinfo->gotlos += 4;
4403   else if (entry->gothilo)
4404     dinfo->gothilo += 4;
4405   else
4406     entry->relocs32--;
4407   entry->relocs32++;
4408 
4409   /* Allocate space for a GOT entry pointing to the function
4410      descriptor.  */
4411   if (entry->fdgot12)
4412     dinfo->got12 += 4;
4413   else if (entry->fdgotlos)
4414     dinfo->gotlos += 4;
4415   else if (entry->fdgothilo)
4416     dinfo->gothilo += 4;
4417   else
4418     entry->relocsfd--;
4419   entry->relocsfd++;
4420 
4421   /* Decide whether we need a PLT entry, a function descriptor in the
4422      GOT, and a lazy PLT entry for this symbol.  */
4423   entry->plt = entry->call
4424     && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4425     && elf_hash_table (dinfo->info)->dynamic_sections_created;
4426   entry->privfd = entry->plt
4427     || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4428     || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4429 	&& (entry->symndx != -1
4430 	    || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4431   entry->lazyplt = entry->privfd
4432     && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4433     && ! (dinfo->info->flags & DF_BIND_NOW)
4434     && elf_hash_table (dinfo->info)->dynamic_sections_created;
4435 
4436   /* Allocate space for a function descriptor.  */
4437   if (entry->fdgoff12)
4438     dinfo->fd12 += 8;
4439   else if (entry->fdgofflos)
4440     dinfo->fdlos += 8;
4441   else if (entry->privfd && entry->plt)
4442     dinfo->fdplt += 8;
4443   else if (entry->privfd)
4444     dinfo->fdhilo += 8;
4445   else
4446     entry->relocsfdv--;
4447   entry->relocsfdv++;
4448 
4449   if (entry->lazyplt)
4450     dinfo->lzplt += 8;
4451 }
4452 
4453 /* Compute the total GOT size required by each TLS symbol in each
4454    range.  Symbols may require up to 5 words in the GOT: an entry
4455    holding the TLS offset for the symbol, and an entry with a full TLS
4456    descriptor taking 4 words.  */
4457 
4458 static void
_frvfdpic_count_tls_entries(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo,bfd_boolean subtract)4459 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4460 			     struct _frvfdpic_dynamic_got_info *dinfo,
4461 			     bfd_boolean subtract)
4462 {
4463   const int l = subtract ? -1 : 1;
4464 
4465   /* Allocate space for a GOT entry with the TLS offset of the
4466      symbol.  */
4467   if (entry->tlsoff12)
4468     dinfo->got12 += 4 * l;
4469   else if (entry->tlsofflos)
4470     dinfo->gotlos += 4 * l;
4471   else if (entry->tlsoffhilo)
4472     dinfo->gothilo += 4 * l;
4473   else
4474     entry->relocstlsoff -= l;
4475   entry->relocstlsoff += l;
4476 
4477   /* If there's any TLSOFF relocation, mark the output file as not
4478      suitable for dlopening.  This mark will remain even if we relax
4479      all such relocations, but this is not a problem, since we'll only
4480      do so for executables, and we definitely don't want anyone
4481      dlopening executables.  */
4482   if (entry->relocstlsoff)
4483     dinfo->info->flags |= DF_STATIC_TLS;
4484 
4485   /* Allocate space for a TLS descriptor.  */
4486   if (entry->tlsdesc12)
4487     dinfo->tlsd12 += 8 * l;
4488   else if (entry->tlsdesclos)
4489     dinfo->tlsdlos += 8 * l;
4490   else if (entry->tlsplt)
4491     dinfo->tlsdplt += 8 * l;
4492   else if (entry->tlsdeschilo)
4493     dinfo->tlsdhilo += 8 * l;
4494   else
4495     entry->relocstlsd -= l;
4496   entry->relocstlsd += l;
4497 }
4498 
4499 /* Compute the number of dynamic relocations and fixups that a symbol
4500    requires, and add (or subtract) from the grand and per-symbol
4501    totals.  */
4502 
4503 static void
_frvfdpic_count_relocs_fixups(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo,bfd_boolean subtract)4504 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4505 			       struct _frvfdpic_dynamic_got_info *dinfo,
4506 			       bfd_boolean subtract)
4507 {
4508   bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4509 
4510   if (!bfd_link_pde (dinfo->info))
4511     {
4512       relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4513 	+ entry->relocstlsd;
4514 
4515       /* In the executable, TLS relocations to symbols that bind
4516 	 locally (including those that resolve to global TLS offsets)
4517 	 are resolved immediately, without any need for fixups or
4518 	 dynamic relocations.  In shared libraries, however, we must
4519 	 emit dynamic relocations even for local symbols, because we
4520 	 don't know the module id the library is going to get at
4521 	 run-time, nor its TLS base offset.  */
4522       if (!bfd_link_executable (dinfo->info)
4523 	  || (entry->symndx == -1
4524 	      && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4525 	relocs += entry->relocstlsoff;
4526     }
4527   else
4528     {
4529       if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4530 	{
4531 	  if (entry->symndx != -1
4532 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
4533 	    fixups += entry->relocs32 + 2 * entry->relocsfdv;
4534 	  fixups += entry->relocstlsd;
4535 	  tlsrets += entry->relocstlsd;
4536 	}
4537       else
4538 	{
4539 	  relocs += entry->relocs32 + entry->relocsfdv
4540 	    + entry->relocstlsoff + entry->relocstlsd;
4541 	}
4542 
4543       if (entry->symndx != -1
4544 	  || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4545 	{
4546 	  if (entry->symndx != -1
4547 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
4548 	    fixups += entry->relocsfd;
4549 	}
4550       else
4551 	relocs += entry->relocsfd;
4552     }
4553 
4554   if (subtract)
4555     {
4556       relocs = - relocs;
4557       fixups = - fixups;
4558       tlsrets = - tlsrets;
4559     }
4560 
4561   entry->dynrelocs += relocs;
4562   entry->fixups += fixups;
4563   dinfo->relocs += relocs;
4564   dinfo->fixups += fixups;
4565   dinfo->tls_ret_refs += tlsrets;
4566 }
4567 
4568 /* Look for opportunities to relax TLS relocations.  We can assume
4569    we're linking the main executable or a static-tls library, since
4570    otherwise we wouldn't have got here.  When relaxing, we have to
4571    first undo any previous accounting of TLS uses of fixups, dynamic
4572    relocations, GOT and PLT entries.  */
4573 
4574 static void
_frvfdpic_relax_tls_entries(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo,bfd_boolean relaxing)4575 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4576 			     struct _frvfdpic_dynamic_got_info *dinfo,
4577 			     bfd_boolean relaxing)
4578 {
4579   bfd_boolean changed = ! relaxing;
4580 
4581   BFD_ASSERT (bfd_link_executable (dinfo->info)
4582 	      || (dinfo->info->flags & DF_STATIC_TLS));
4583 
4584   if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4585     {
4586       if (! changed)
4587 	{
4588 	  _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4589 	  _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4590 	  changed = TRUE;
4591 	}
4592 
4593       /* When linking an executable, we can always decay GOTTLSDESC to
4594 	 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4595 	 When linking a static-tls shared library, using TLSMOFF is
4596 	 not an option, but we can still use GOTTLSOFF.  When decaying
4597 	 to GOTTLSOFF, we must keep the GOT entry in range.  We know
4598 	 it has to fit because we'll be trading the 4 words of hte TLS
4599 	 descriptor for a single word in the same range.  */
4600       if (! bfd_link_executable (dinfo->info)
4601 	  || (entry->symndx == -1
4602 	      && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4603 	{
4604 	  entry->tlsoff12 |= entry->tlsdesc12;
4605 	  entry->tlsofflos |= entry->tlsdesclos;
4606 	  entry->tlsoffhilo |= entry->tlsdeschilo;
4607 	}
4608 
4609       entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4610     }
4611 
4612   /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4613      main executable.  We have to check whether the symbol's TLSOFF is
4614      in range for a setlos.  For symbols with a hash entry, we can
4615      determine exactly what to do; for others locals, we don't have
4616      addresses handy, so we use the size of the TLS section as an
4617      approximation.  If we get it wrong, we'll retain a GOT entry
4618      holding the TLS offset (without dynamic relocations or fixups),
4619      but we'll still optimize away the loads from it.  Since TLS sizes
4620      are generally very small, it's probably not worth attempting to
4621      do better than this.  */
4622   if ((entry->tlsplt
4623        || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4624       && bfd_link_executable (dinfo->info) && relaxing
4625       && ((entry->symndx == -1
4626 	   && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4627 	   /* The above may hold for an undefweak TLS symbol, so make
4628 	      sure we don't have this case before accessing def.value
4629 	      and def.section.  */
4630 	   && (entry->d.h->root.type == bfd_link_hash_undefweak
4631 	       || (bfd_vma)(entry->d.h->root.u.def.value
4632 			    + (entry->d.h->root.u.def.section
4633 			       ->output_section->vma)
4634 			    + entry->d.h->root.u.def.section->output_offset
4635 			    + entry->addend
4636 			    - tls_biased_base (dinfo->info)
4637 			    + 32768) < (bfd_vma)65536))
4638 	  || (entry->symndx != -1
4639 	      && (elf_hash_table (dinfo->info)->tls_sec->size
4640 		  + entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
4641     {
4642       if (! changed)
4643 	{
4644 	  _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4645 	  _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4646 	  changed = TRUE;
4647 	}
4648 
4649       entry->tlsplt =
4650 	entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4651     }
4652 
4653   /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4654      have a #gottlsoff12 relocation for this entry, or if we can fit
4655      one more in the 12-bit (and 16-bit) ranges.  */
4656   if (entry->tlsplt
4657       && (entry->tlsoff12
4658 	  || (relaxing
4659 	      && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4660 	      && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4661 		  + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4662 		  <= 65536 - 12 - 4))))
4663     {
4664       if (! changed)
4665 	{
4666 	  _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4667 	  _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4668 	  changed = TRUE;
4669 	}
4670 
4671       entry->tlsoff12 = 1;
4672       entry->tlsplt = 0;
4673     }
4674 
4675   if (changed)
4676     {
4677       _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4678       _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4679     }
4680 
4681   return;
4682 }
4683 
4684 /* Compute the total GOT and PLT size required by each symbol in each range. *
4685    Symbols may require up to 4 words in the GOT: an entry pointing to
4686    the symbol, an entry pointing to its function descriptor, and a
4687    private function descriptors taking two words.  */
4688 
4689 static int
_frvfdpic_count_got_plt_entries(void ** entryp,void * dinfo_)4690 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4691 {
4692   struct frvfdpic_relocs_info *entry = *entryp;
4693   struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4694 
4695   _frvfdpic_count_nontls_entries (entry, dinfo);
4696 
4697   if (bfd_link_executable (dinfo->info)
4698       || (dinfo->info->flags & DF_STATIC_TLS))
4699     _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4700   else
4701     {
4702       _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4703       _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4704     }
4705 
4706   return 1;
4707 }
4708 
4709 /* Determine the positive and negative ranges to be used by each
4710    offset range in the GOT.  FDCUR and CUR, that must be aligned to a
4711    double-word boundary, are the minimum (negative) and maximum
4712    (positive) GOT offsets already used by previous ranges, except for
4713    an ODD entry that may have been left behind.  GOT and FD indicate
4714    the size of GOT entries and function descriptors that must be
4715    placed within the range from -WRAP to WRAP.  If there's room left,
4716    up to FDPLT bytes should be reserved for additional function
4717    descriptors.  */
4718 
4719 inline static bfd_signed_vma
_frvfdpic_compute_got_alloc_data(struct _frvfdpic_dynamic_got_alloc_data * gad,bfd_signed_vma fdcur,bfd_signed_vma odd,bfd_signed_vma cur,bfd_vma got,bfd_vma fd,bfd_vma fdplt,bfd_vma tlsd,bfd_vma tlsdplt,bfd_vma wrap)4720 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4721 				  bfd_signed_vma fdcur,
4722 				  bfd_signed_vma odd,
4723 				  bfd_signed_vma cur,
4724 				  bfd_vma got,
4725 				  bfd_vma fd,
4726 				  bfd_vma fdplt,
4727 				  bfd_vma tlsd,
4728 				  bfd_vma tlsdplt,
4729 				  bfd_vma wrap)
4730 {
4731   bfd_signed_vma wrapmin = -wrap;
4732   const bfd_vma tdescsz = 8;
4733 
4734   /* Start at the given initial points.  */
4735   gad->fdcur = fdcur;
4736   gad->cur = cur;
4737 
4738   /* If we had an incoming odd word and we have any got entries that
4739      are going to use it, consume it, otherwise leave gad->odd at
4740      zero.  We might force gad->odd to zero and return the incoming
4741      odd such that it is used by the next range, but then GOT entries
4742      might appear to be out of order and we wouldn't be able to
4743      shorten the GOT by one word if it turns out to end with an
4744      unpaired GOT entry.  */
4745   if (odd && got)
4746     {
4747       gad->odd = odd;
4748       got -= 4;
4749       odd = 0;
4750     }
4751   else
4752     gad->odd = 0;
4753 
4754   /* If we're left with an unpaired GOT entry, compute its location
4755      such that we can return it.  Otherwise, if got doesn't require an
4756      odd number of words here, either odd was already zero in the
4757      block above, or it was set to zero because got was non-zero, or
4758      got was already zero.  In the latter case, we want the value of
4759      odd to carry over to the return statement, so we don't want to
4760      reset odd unless the condition below is true.  */
4761   if (got & 4)
4762     {
4763       odd = cur + got;
4764       got += 4;
4765     }
4766 
4767   /* Compute the tentative boundaries of this range.  */
4768   gad->max = cur + got;
4769   gad->min = fdcur - fd;
4770   gad->fdplt = 0;
4771 
4772   /* If function descriptors took too much space, wrap some of them
4773      around.  */
4774   if (gad->min < wrapmin)
4775     {
4776       gad->max += wrapmin - gad->min;
4777       gad->tmin = gad->min = wrapmin;
4778     }
4779 
4780   /* If GOT entries took too much space, wrap some of them around.
4781      This may well cause gad->min to become lower than wrapmin.  This
4782      will cause a relocation overflow later on, so we don't have to
4783      report it here . */
4784   if ((bfd_vma) gad->max > wrap)
4785     {
4786       gad->min -= gad->max - wrap;
4787       gad->max = wrap;
4788     }
4789 
4790   /* Add TLS descriptors.  */
4791   gad->tmax = gad->max + tlsd;
4792   gad->tmin = gad->min;
4793   gad->tlsdplt = 0;
4794 
4795   /* If TLS descriptors took too much space, wrap an integral number
4796      of them around.  */
4797   if ((bfd_vma) gad->tmax > wrap)
4798     {
4799       bfd_vma wrapsize = gad->tmax - wrap;
4800 
4801       wrapsize += tdescsz / 2;
4802       wrapsize &= ~ tdescsz / 2;
4803 
4804       gad->tmin -= wrapsize;
4805       gad->tmax -= wrapsize;
4806     }
4807 
4808   /* If there is space left and we have function descriptors
4809      referenced in PLT entries that could take advantage of shorter
4810      offsets, place them now.  */
4811   if (fdplt && gad->tmin > wrapmin)
4812     {
4813       bfd_vma fds;
4814 
4815       if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4816 	fds = gad->tmin - wrapmin;
4817       else
4818 	fds = fdplt;
4819 
4820       fdplt -= fds;
4821       gad->min -= fds;
4822       gad->tmin -= fds;
4823       gad->fdplt += fds;
4824     }
4825 
4826   /* If there is more space left, try to place some more function
4827      descriptors for PLT entries.  */
4828   if (fdplt && (bfd_vma) gad->tmax < wrap)
4829     {
4830       bfd_vma fds;
4831 
4832       if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4833 	fds = wrap - gad->tmax;
4834       else
4835 	fds = fdplt;
4836 
4837       fdplt -= fds;
4838       gad->max += fds;
4839       gad->tmax += fds;
4840       gad->fdplt += fds;
4841     }
4842 
4843   /* If there is space left and we have TLS descriptors referenced in
4844      PLT entries that could take advantage of shorter offsets, place
4845      them now.  */
4846   if (tlsdplt && gad->tmin > wrapmin)
4847     {
4848       bfd_vma tlsds;
4849 
4850       if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4851 	tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4852       else
4853 	tlsds = tlsdplt;
4854 
4855       tlsdplt -= tlsds;
4856       gad->tmin -= tlsds;
4857       gad->tlsdplt += tlsds;
4858     }
4859 
4860   /* If there is more space left, try to place some more TLS
4861      descriptors for PLT entries.  Although we could try to fit an
4862      additional TLS descriptor with half of it just before before the
4863      wrap point and another right past the wrap point, this might
4864      cause us to run out of space for the next region, so don't do
4865      it.  */
4866   if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4867     {
4868       bfd_vma tlsds;
4869 
4870       if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4871 	tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4872       else
4873 	tlsds = tlsdplt;
4874 
4875       tlsdplt -= tlsds;
4876       gad->tmax += tlsds;
4877       gad->tlsdplt += tlsds;
4878     }
4879 
4880   /* If odd was initially computed as an offset past the wrap point,
4881      wrap it around.  */
4882   if (odd > gad->max)
4883     odd = gad->min + odd - gad->max;
4884 
4885   /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4886      before returning, so do it here too.  This guarantees that,
4887      should cur and fdcur meet at the wrap point, they'll both be
4888      equal to min.  */
4889   if (gad->cur == gad->max)
4890     gad->cur = gad->min;
4891 
4892   /* Ditto for _frvfdpic_get_tlsdesc_entry().  */
4893   gad->tcur = gad->max;
4894   if (gad->tcur == gad->tmax)
4895     gad->tcur = gad->tmin;
4896 
4897   return odd;
4898 }
4899 
4900 /* Compute the location of the next GOT entry, given the allocation
4901    data for a range.  */
4902 
4903 inline static bfd_signed_vma
_frvfdpic_get_got_entry(struct _frvfdpic_dynamic_got_alloc_data * gad)4904 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4905 {
4906   bfd_signed_vma ret;
4907 
4908   if (gad->odd)
4909     {
4910       /* If there was an odd word left behind, use it.  */
4911       ret = gad->odd;
4912       gad->odd = 0;
4913     }
4914   else
4915     {
4916       /* Otherwise, use the word pointed to by cur, reserve the next
4917 	 as an odd word, and skip to the next pair of words, possibly
4918 	 wrapping around.  */
4919       ret = gad->cur;
4920       gad->odd = gad->cur + 4;
4921       gad->cur += 8;
4922       if (gad->cur == gad->max)
4923 	gad->cur = gad->min;
4924     }
4925 
4926   return ret;
4927 }
4928 
4929 /* Compute the location of the next function descriptor entry in the
4930    GOT, given the allocation data for a range.  */
4931 
4932 inline static bfd_signed_vma
_frvfdpic_get_fd_entry(struct _frvfdpic_dynamic_got_alloc_data * gad)4933 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4934 {
4935   /* If we're at the bottom, wrap around, and only then allocate the
4936      next pair of words.  */
4937   if (gad->fdcur == gad->min)
4938     gad->fdcur = gad->max;
4939   return gad->fdcur -= 8;
4940 }
4941 
4942 /* Compute the location of the next TLS descriptor entry in the GOT,
4943    given the allocation data for a range.  */
4944 inline static bfd_signed_vma
_frvfdpic_get_tlsdesc_entry(struct _frvfdpic_dynamic_got_alloc_data * gad)4945 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4946 {
4947   bfd_signed_vma ret;
4948 
4949   ret = gad->tcur;
4950 
4951   gad->tcur += 8;
4952 
4953   /* If we're at the top of the region, wrap around to the bottom.  */
4954   if (gad->tcur == gad->tmax)
4955     gad->tcur = gad->tmin;
4956 
4957   return ret;
4958 }
4959 
4960 /* Assign GOT offsets for every GOT entry and function descriptor.
4961    Doing everything in a single pass is tricky.  */
4962 
4963 static int
_frvfdpic_assign_got_entries(void ** entryp,void * info_)4964 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4965 {
4966   struct frvfdpic_relocs_info *entry = *entryp;
4967   struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4968 
4969   if (entry->got12)
4970     entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4971   else if (entry->gotlos)
4972     entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4973   else if (entry->gothilo)
4974     entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4975 
4976   if (entry->fdgot12)
4977     entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4978   else if (entry->fdgotlos)
4979     entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4980   else if (entry->fdgothilo)
4981     entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4982 
4983   if (entry->fdgoff12)
4984     entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4985   else if (entry->plt && dinfo->got12.fdplt)
4986     {
4987       dinfo->got12.fdplt -= 8;
4988       entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4989     }
4990   else if (entry->fdgofflos)
4991     entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4992   else if (entry->plt && dinfo->gotlos.fdplt)
4993     {
4994       dinfo->gotlos.fdplt -= 8;
4995       entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4996     }
4997   else if (entry->plt)
4998     {
4999       dinfo->gothilo.fdplt -= 8;
5000       entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5001     }
5002   else if (entry->privfd)
5003     entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5004 
5005   if (entry->tlsoff12)
5006     entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5007   else if (entry->tlsofflos)
5008     entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5009   else if (entry->tlsoffhilo)
5010     entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5011 
5012   if (entry->tlsdesc12)
5013     entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5014   else if (entry->tlsplt && dinfo->got12.tlsdplt)
5015     {
5016       dinfo->got12.tlsdplt -= 8;
5017       entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5018     }
5019   else if (entry->tlsdesclos)
5020     entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5021   else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5022     {
5023       dinfo->gotlos.tlsdplt -= 8;
5024       entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5025     }
5026   else if (entry->tlsplt)
5027     {
5028       dinfo->gothilo.tlsdplt -= 8;
5029       entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5030     }
5031   else if (entry->tlsdeschilo)
5032     entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5033 
5034   return 1;
5035 }
5036 
5037 /* Assign GOT offsets to private function descriptors used by PLT
5038    entries (or referenced by 32-bit offsets), as well as PLT entries
5039    and lazy PLT entries.  */
5040 
5041 static int
_frvfdpic_assign_plt_entries(void ** entryp,void * info_)5042 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5043 {
5044   struct frvfdpic_relocs_info *entry = *entryp;
5045   struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5046 
5047   if (entry->privfd)
5048     BFD_ASSERT (entry->fd_entry);
5049 
5050   if (entry->plt)
5051     {
5052       int size;
5053 
5054       /* We use the section's raw size to mark the location of the
5055 	 next PLT entry.  */
5056       entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5057 
5058       /* Figure out the length of this PLT entry based on the
5059 	 addressing mode we need to reach the function descriptor.  */
5060       BFD_ASSERT (entry->fd_entry);
5061       if (entry->fd_entry >= -(1 << (12 - 1))
5062 	  && entry->fd_entry < (1 << (12 - 1)))
5063 	size = 8;
5064       else if (entry->fd_entry >= -(1 << (16 - 1))
5065 	       && entry->fd_entry < (1 << (16 - 1)))
5066 	size = 12;
5067       else
5068 	size = 16;
5069 
5070       frvfdpic_plt_section (dinfo->g.info)->size += size;
5071     }
5072 
5073   if (entry->lazyplt)
5074     {
5075       entry->lzplt_entry = dinfo->g.lzplt;
5076       dinfo->g.lzplt += 8;
5077       /* If this entry is the one that gets the resolver stub, account
5078 	 for the additional instruction.  */
5079       if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5080 	  == FRVFDPIC_LZPLT_RESOLV_LOC)
5081 	dinfo->g.lzplt += 4;
5082     }
5083 
5084   if (entry->tlsplt)
5085     {
5086       int size;
5087 
5088       entry->tlsplt_entry
5089 	= frvfdpic_plt_section (dinfo->g.info)->size;
5090 
5091       if (bfd_link_executable (dinfo->g.info)
5092 	  && (entry->symndx != -1
5093 	      || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5094 	{
5095 	  if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5096 	      /* FIXME: here we use the size of the TLS section
5097 		 as an upper bound for the value of the TLS
5098 		 symbol, because we may not know the exact value
5099 		 yet.  If we get it wrong, we'll just waste a
5100 		 word in the PLT, and we should never get even
5101 		 close to 32 KiB of TLS anyway.  */
5102 	      && elf_hash_table (dinfo->g.info)->tls_sec
5103 	      && (elf_hash_table (dinfo->g.info)->tls_sec->size
5104 		  + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5105 	    size = 8;
5106 	  else
5107 	    size = 12;
5108 	}
5109       else if (entry->tlsoff_entry)
5110 	{
5111 	  if (entry->tlsoff_entry >= -(1 << (12 - 1))
5112 	      && entry->tlsoff_entry < (1 << (12 - 1)))
5113 	    size = 8;
5114 	  else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5115 		   && entry->tlsoff_entry < (1 << (16 - 1)))
5116 	    size = 12;
5117 	  else
5118 	    size = 16;
5119 	}
5120       else
5121 	{
5122 	  BFD_ASSERT (entry->tlsdesc_entry);
5123 
5124 	  if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5125 	      && entry->tlsdesc_entry < (1 << (12 - 1)))
5126 	    size = 8;
5127 	  else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5128 		   && entry->tlsdesc_entry < (1 << (16 - 1)))
5129 	    size = 12;
5130 	  else
5131 	    size = 16;
5132 	}
5133 
5134       frvfdpic_plt_section (dinfo->g.info)->size += size;
5135     }
5136 
5137   return 1;
5138 }
5139 
5140 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5141    _frvfdpic_assign_plt_entries.  */
5142 
5143 static int
_frvfdpic_reset_got_plt_entries(void ** entryp,void * ignore ATTRIBUTE_UNUSED)5144 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5145 {
5146   struct frvfdpic_relocs_info *entry = *entryp;
5147 
5148   entry->got_entry = 0;
5149   entry->fdgot_entry = 0;
5150   entry->fd_entry = 0;
5151   entry->plt_entry = (bfd_vma)-1;
5152   entry->lzplt_entry = (bfd_vma)-1;
5153   entry->tlsoff_entry = 0;
5154   entry->tlsdesc_entry = 0;
5155   entry->tlsplt_entry = (bfd_vma)-1;
5156 
5157   return 1;
5158 }
5159 
5160 /* Follow indirect and warning hash entries so that each got entry
5161    points to the final symbol definition.  P must point to a pointer
5162    to the hash table we're traversing.  Since this traversal may
5163    modify the hash table, we set this pointer to NULL to indicate
5164    we've made a potentially-destructive change to the hash table, so
5165    the traversal must be restarted.  */
5166 static int
_frvfdpic_resolve_final_relocs_info(void ** entryp,void * p)5167 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5168 {
5169   struct frvfdpic_relocs_info *entry = *entryp;
5170   htab_t *htab = p;
5171 
5172   if (entry->symndx == -1)
5173     {
5174       struct elf_link_hash_entry *h = entry->d.h;
5175       struct frvfdpic_relocs_info *oentry;
5176 
5177       while (h->root.type == bfd_link_hash_indirect
5178 	     || h->root.type == bfd_link_hash_warning)
5179 	h = (struct elf_link_hash_entry *)h->root.u.i.link;
5180 
5181       if (entry->d.h == h)
5182 	return 1;
5183 
5184       oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5185 						NO_INSERT);
5186 
5187       if (oentry)
5188 	{
5189 	  /* Merge the two entries.  */
5190 	  frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5191 	  htab_clear_slot (*htab, entryp);
5192 	  return 1;
5193 	}
5194 
5195       entry->d.h = h;
5196 
5197       /* If we can't find this entry with the new bfd hash, re-insert
5198 	 it, and get the traversal restarted.  */
5199       if (! htab_find (*htab, entry))
5200 	{
5201 	  htab_clear_slot (*htab, entryp);
5202 	  entryp = htab_find_slot (*htab, entry, INSERT);
5203 	  if (! *entryp)
5204 	    *entryp = entry;
5205 	  /* Abort the traversal, since the whole table may have
5206 	     moved, and leave it up to the parent to restart the
5207 	     process.  */
5208 	  *(htab_t *)p = NULL;
5209 	  return 0;
5210 	}
5211     }
5212 
5213   return 1;
5214 }
5215 
5216 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5217    section and the rofixup section.  Assign locations for GOT and PLT
5218    entries.  */
5219 
5220 static bfd_boolean
_frvfdpic_size_got_plt(bfd * output_bfd,struct _frvfdpic_dynamic_got_plt_info * gpinfop)5221 _frvfdpic_size_got_plt (bfd *output_bfd,
5222 			struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5223 {
5224   bfd_signed_vma odd;
5225   bfd_vma limit, tlslimit;
5226   struct bfd_link_info *info = gpinfop->g.info;
5227   bfd *dynobj = elf_hash_table (info)->dynobj;
5228 
5229   memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5230 	  sizeof (gpinfop->g));
5231 
5232   odd = 12;
5233   /* Compute the total size taken by entries in the 12-bit and 16-bit
5234      ranges, to tell how many PLT function descriptors we can bring
5235      into the 12-bit range without causing the 16-bit range to
5236      overflow.  */
5237   limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5238     + gpinfop->g.fd12 + gpinfop->g.fdlos
5239     + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5240   if (limit < (bfd_vma)1 << 16)
5241     limit = ((bfd_vma)1 << 16) - limit;
5242   else
5243     limit = 0;
5244   if (gpinfop->g.fdplt < limit)
5245     {
5246       tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5247       limit = gpinfop->g.fdplt;
5248     }
5249   else
5250     tlslimit = 0;
5251   if (gpinfop->g.tlsdplt < tlslimit)
5252     tlslimit = gpinfop->g.tlsdplt;
5253 
5254   /* Determine the ranges of GOT offsets that we can use for each
5255      range of addressing modes.  */
5256   odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5257 					  0,
5258 					  odd,
5259 					  16,
5260 					  gpinfop->g.got12,
5261 					  gpinfop->g.fd12,
5262 					  limit,
5263 					  gpinfop->g.tlsd12,
5264 					  tlslimit,
5265 					  (bfd_vma)1 << (12-1));
5266   odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5267 					  gpinfop->got12.tmin,
5268 					  odd,
5269 					  gpinfop->got12.tmax,
5270 					  gpinfop->g.gotlos,
5271 					  gpinfop->g.fdlos,
5272 					  gpinfop->g.fdplt
5273 					  - gpinfop->got12.fdplt,
5274 					  gpinfop->g.tlsdlos,
5275 					  gpinfop->g.tlsdplt
5276 					  - gpinfop->got12.tlsdplt,
5277 					  (bfd_vma)1 << (16-1));
5278   odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5279 					  gpinfop->gotlos.tmin,
5280 					  odd,
5281 					  gpinfop->gotlos.tmax,
5282 					  gpinfop->g.gothilo,
5283 					  gpinfop->g.fdhilo,
5284 					  gpinfop->g.fdplt
5285 					  - gpinfop->got12.fdplt
5286 					  - gpinfop->gotlos.fdplt,
5287 					  gpinfop->g.tlsdhilo,
5288 					  gpinfop->g.tlsdplt
5289 					  - gpinfop->got12.tlsdplt
5290 					  - gpinfop->gotlos.tlsdplt,
5291 					  (bfd_vma)1 << (32-1));
5292 
5293   /* Now assign (most) GOT offsets.  */
5294   htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5295 		 gpinfop);
5296 
5297   frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5298     - gpinfop->gothilo.tmin
5299     /* If an odd word is the last word of the GOT, we don't need this
5300        word to be part of the GOT.  */
5301     - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5302   if (frvfdpic_got_section (info)->size == 0)
5303     frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5304   else if (frvfdpic_got_section (info)->size == 12
5305 	   && ! elf_hash_table (info)->dynamic_sections_created)
5306     {
5307       frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5308       frvfdpic_got_section (info)->size = 0;
5309     }
5310   /* This will be non-NULL during relaxation.  The assumption is that
5311      the size of one of these sections will never grow, only shrink,
5312      so we can use the larger buffer we allocated before.  */
5313   else if (frvfdpic_got_section (info)->contents == NULL)
5314     {
5315       frvfdpic_got_section (info)->contents =
5316 	(bfd_byte *) bfd_zalloc (dynobj,
5317 				 frvfdpic_got_section (info)->size);
5318       if (frvfdpic_got_section (info)->contents == NULL)
5319 	return FALSE;
5320     }
5321 
5322   if (frvfdpic_gotrel_section (info))
5323     /* Subtract the number of lzplt entries, since those will generate
5324        relocations in the pltrel section.  */
5325     frvfdpic_gotrel_section (info)->size =
5326       (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5327       * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5328   else
5329     BFD_ASSERT (gpinfop->g.relocs == 0);
5330   if (frvfdpic_gotrel_section (info)->size == 0)
5331     frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5332   else if (frvfdpic_gotrel_section (info)->contents == NULL)
5333     {
5334       frvfdpic_gotrel_section (info)->contents =
5335 	(bfd_byte *) bfd_zalloc (dynobj,
5336 				 frvfdpic_gotrel_section (info)->size);
5337       if (frvfdpic_gotrel_section (info)->contents == NULL)
5338 	return FALSE;
5339     }
5340 
5341   frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5342   if (frvfdpic_gotfixup_section (info)->size == 0)
5343     frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5344   else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5345     {
5346       frvfdpic_gotfixup_section (info)->contents =
5347 	(bfd_byte *) bfd_zalloc (dynobj,
5348 				 frvfdpic_gotfixup_section (info)->size);
5349       if (frvfdpic_gotfixup_section (info)->contents == NULL)
5350 	return FALSE;
5351     }
5352 
5353   if (frvfdpic_pltrel_section (info))
5354     {
5355       frvfdpic_pltrel_section (info)->size =
5356 	gpinfop->g.lzplt / 8
5357 	* get_elf_backend_data (output_bfd)->s->sizeof_rel;
5358       if (frvfdpic_pltrel_section (info)->size == 0)
5359 	frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5360       else if (frvfdpic_pltrel_section (info)->contents == NULL)
5361 	{
5362 	  frvfdpic_pltrel_section (info)->contents =
5363 	    (bfd_byte *) bfd_zalloc (dynobj,
5364 				     frvfdpic_pltrel_section (info)->size);
5365 	  if (frvfdpic_pltrel_section (info)->contents == NULL)
5366 	    return FALSE;
5367 	}
5368     }
5369 
5370   /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5371      such that there's room for the additional instruction needed to
5372      call the resolver.  Since _frvfdpic_assign_got_entries didn't
5373      account for them, our block size is 4 bytes smaller than the real
5374      block size.  */
5375   if (frvfdpic_plt_section (info))
5376     {
5377       frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5378 	+ ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5379 	   / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5380     }
5381 
5382   /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5383      actually assign lazy PLT entries addresses.  */
5384   gpinfop->g.lzplt = 0;
5385 
5386   /* Save information that we're going to need to generate GOT and PLT
5387      entries.  */
5388   frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5389 
5390   if (get_elf_backend_data (output_bfd)->want_got_sym)
5391     elf_hash_table (info)->hgot->root.u.def.value
5392       = frvfdpic_got_initial_offset (info);
5393 
5394   if (frvfdpic_plt_section (info))
5395     frvfdpic_plt_initial_offset (info) =
5396       frvfdpic_plt_section (info)->size;
5397 
5398   /* Allocate a ret statement at plt_initial_offset, to be used by
5399      locally-resolved TLS descriptors.  */
5400   if (gpinfop->g.tls_ret_refs)
5401     frvfdpic_plt_section (info)->size += 4;
5402 
5403   htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5404 		 gpinfop);
5405 
5406   /* Allocate the PLT section contents only after
5407      _frvfdpic_assign_plt_entries has a chance to add the size of the
5408      non-lazy PLT entries.  */
5409   if (frvfdpic_plt_section (info))
5410     {
5411       if (frvfdpic_plt_section (info)->size == 0)
5412 	frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5413       else if (frvfdpic_plt_section (info)->contents == NULL)
5414 	{
5415 	  frvfdpic_plt_section (info)->contents =
5416 	    (bfd_byte *) bfd_zalloc (dynobj,
5417 				     frvfdpic_plt_section (info)->size);
5418 	  if (frvfdpic_plt_section (info)->contents == NULL)
5419 	    return FALSE;
5420 	}
5421     }
5422 
5423   return TRUE;
5424 }
5425 
5426 /* Set the sizes of the dynamic sections.  */
5427 
5428 static bfd_boolean
elf32_frvfdpic_size_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)5429 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5430 				      struct bfd_link_info *info)
5431 {
5432   bfd *dynobj;
5433   asection *s;
5434   struct _frvfdpic_dynamic_got_plt_info gpinfo;
5435 
5436   dynobj = elf_hash_table (info)->dynobj;
5437   BFD_ASSERT (dynobj != NULL);
5438 
5439   if (elf_hash_table (info)->dynamic_sections_created)
5440     {
5441       /* Set the contents of the .interp section to the interpreter.  */
5442       if (bfd_link_executable (info) && !info->nointerp)
5443 	{
5444 	  s = bfd_get_linker_section (dynobj, ".interp");
5445 	  BFD_ASSERT (s != NULL);
5446 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5447 	  s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5448 	}
5449     }
5450 
5451   memset (&gpinfo, 0, sizeof (gpinfo));
5452   gpinfo.g.info = info;
5453 
5454   for (;;)
5455     {
5456       htab_t relocs = frvfdpic_relocs_info (info);
5457 
5458       htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5459 
5460       if (relocs == frvfdpic_relocs_info (info))
5461 	break;
5462     }
5463 
5464   htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5465 		 &gpinfo.g);
5466 
5467   /* Allocate space to save the summary information, we're going to
5468      use it if we're doing relaxations.  */
5469   frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5470 
5471   if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5472     return FALSE;
5473 
5474   if (elf_hash_table (info)->dynamic_sections_created)
5475     {
5476       if (frvfdpic_got_section (info)->size)
5477 	if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5478 	  return FALSE;
5479 
5480       if (frvfdpic_pltrel_section (info)->size)
5481 	if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5482 	    || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5483 	    || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5484 	  return FALSE;
5485 
5486       if (frvfdpic_gotrel_section (info)->size)
5487 	if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5488 	    || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5489 	    || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5490 					    sizeof (Elf32_External_Rel)))
5491 	  return FALSE;
5492     }
5493 
5494   return TRUE;
5495 }
5496 
5497 static bfd_boolean
elf32_frvfdpic_always_size_sections(bfd * output_bfd,struct bfd_link_info * info)5498 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5499 				     struct bfd_link_info *info)
5500 {
5501   if (!bfd_link_relocatable (info)
5502       && !bfd_elf_stack_segment_size (output_bfd, info,
5503 				      "__stacksize", DEFAULT_STACK_SIZE))
5504     return FALSE;
5505 
5506   return TRUE;
5507 }
5508 
5509 /* Check whether any of the relocations was optimized away, and
5510    subtract it from the relocation or fixup count.  */
5511 static bfd_boolean
_frvfdpic_check_discarded_relocs(bfd * abfd,asection * sec,struct bfd_link_info * info,bfd_boolean * changed)5512 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5513 				  struct bfd_link_info *info,
5514 
5515 				  bfd_boolean *changed)
5516 {
5517   Elf_Internal_Shdr *symtab_hdr;
5518   struct elf_link_hash_entry **sym_hashes;
5519   Elf_Internal_Rela *rel, *erel;
5520 
5521   if ((sec->flags & SEC_RELOC) == 0
5522       || sec->reloc_count == 0)
5523     return TRUE;
5524 
5525   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5526   sym_hashes = elf_sym_hashes (abfd);
5527 
5528   rel = elf_section_data (sec)->relocs;
5529 
5530   /* Now examine each relocation.  */
5531   for (erel = rel + sec->reloc_count; rel < erel; rel++)
5532     {
5533       struct elf_link_hash_entry *h;
5534       unsigned long r_symndx;
5535       struct frvfdpic_relocs_info *picrel;
5536       struct _frvfdpic_dynamic_got_info *dinfo;
5537 
5538       if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5539 	  && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5540 	continue;
5541 
5542       if (_bfd_elf_section_offset (sec->output_section->owner,
5543 				   info, sec, rel->r_offset)
5544 	  != (bfd_vma)-1)
5545 	continue;
5546 
5547       r_symndx = ELF32_R_SYM (rel->r_info);
5548       if (r_symndx < symtab_hdr->sh_info)
5549 	h = NULL;
5550       else
5551 	{
5552 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5553 	  while (h->root.type == bfd_link_hash_indirect
5554 		 || h->root.type == bfd_link_hash_warning)
5555 	    h = (struct elf_link_hash_entry *)h->root.u.i.link;
5556 	}
5557 
5558       if (h != NULL)
5559 	picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5560 						  abfd, h,
5561 						  rel->r_addend, NO_INSERT);
5562       else
5563 	picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5564 						 abfd, r_symndx,
5565 						 rel->r_addend, NO_INSERT);
5566 
5567       if (! picrel)
5568 	return FALSE;
5569 
5570       *changed = TRUE;
5571       dinfo = frvfdpic_dynamic_got_plt_info (info);
5572 
5573       _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5574       if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5575 	picrel->relocs32--;
5576       else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5577 	picrel->relocsfd--;
5578       _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5579     }
5580 
5581   return TRUE;
5582 }
5583 
5584 static bfd_boolean
frvfdpic_elf_discard_info(bfd * ibfd,struct elf_reloc_cookie * cookie ATTRIBUTE_UNUSED,struct bfd_link_info * info)5585 frvfdpic_elf_discard_info (bfd *ibfd,
5586 			   struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5587 			   struct bfd_link_info *info)
5588 {
5589   bfd_boolean changed = FALSE;
5590   asection *s;
5591   bfd *obfd = NULL;
5592 
5593   /* Account for relaxation of .eh_frame section.  */
5594   for (s = ibfd->sections; s; s = s->next)
5595     if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5596       {
5597 	if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5598 	  return FALSE;
5599 	obfd = s->output_section->owner;
5600       }
5601 
5602   if (changed)
5603     {
5604       struct _frvfdpic_dynamic_got_plt_info gpinfo;
5605 
5606       memset (&gpinfo, 0, sizeof (gpinfo));
5607       memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5608 	      sizeof (gpinfo.g));
5609 
5610       /* Clear GOT and PLT assignments.  */
5611       htab_traverse (frvfdpic_relocs_info (info),
5612 		     _frvfdpic_reset_got_plt_entries,
5613 		     NULL);
5614 
5615       if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5616 	return FALSE;
5617     }
5618 
5619   return TRUE;
5620 }
5621 
5622 /* Look for opportunities to relax TLS relocations.  We can assume
5623    we're linking the main executable or a static-tls library, since
5624    otherwise we wouldn't have got here.  */
5625 
5626 static int
_frvfdpic_relax_got_plt_entries(void ** entryp,void * dinfo_)5627 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5628 {
5629   struct frvfdpic_relocs_info *entry = *entryp;
5630   struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5631 
5632   _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5633 
5634   return 1;
5635 }
5636 
5637 static bfd_boolean
elf32_frvfdpic_relax_section(bfd * abfd ATTRIBUTE_UNUSED,asection * sec,struct bfd_link_info * info,bfd_boolean * again)5638 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5639 			      struct bfd_link_info *info, bfd_boolean *again)
5640 {
5641   struct _frvfdpic_dynamic_got_plt_info gpinfo;
5642 
5643   if (bfd_link_relocatable (info))
5644     (*info->callbacks->einfo)
5645       (_("%P%F: --relax and -r may not be used together\n"));
5646 
5647   /* If we return early, we didn't change anything.  */
5648   *again = FALSE;
5649 
5650   /* We'll do our thing when requested to relax the GOT section.  */
5651   if (sec != frvfdpic_got_section (info))
5652     return TRUE;
5653 
5654   /* We can only relax when linking the main executable or a library
5655      that can't be dlopened.  */
5656   if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
5657     return TRUE;
5658 
5659   /* If there isn't a TLS section for this binary, we can't do
5660      anything about its TLS relocations (it probably doesn't have
5661      any.  */
5662   if (elf_hash_table (info)->tls_sec == NULL)
5663     return TRUE;
5664 
5665   memset (&gpinfo, 0, sizeof (gpinfo));
5666   memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5667 
5668   /* Now look for opportunities to relax, adjusting the GOT usage
5669      as needed.  */
5670   htab_traverse (frvfdpic_relocs_info (info),
5671 		 _frvfdpic_relax_got_plt_entries,
5672 		 &gpinfo.g);
5673 
5674   /* If we changed anything, reset and re-assign GOT and PLT entries.  */
5675   if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5676 	      &gpinfo.g, sizeof (gpinfo.g)) != 0)
5677     {
5678       /* Clear GOT and PLT assignments.  */
5679       htab_traverse (frvfdpic_relocs_info (info),
5680 		     _frvfdpic_reset_got_plt_entries,
5681 		     NULL);
5682 
5683       /* The owner of the TLS section is the output bfd.  There should
5684 	 be a better way to get to it.  */
5685       if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5686 				   &gpinfo))
5687 	return FALSE;
5688 
5689       /* Repeat until we don't make any further changes.  We could fail to
5690 	 introduce changes in a round if, for example, the 12-bit range is
5691 	 full, but we later release some space by getting rid of TLS
5692 	 descriptors in it.  We have to repeat the whole process because
5693 	 we might have changed the size of a section processed before this
5694 	 one.  */
5695       *again = TRUE;
5696     }
5697 
5698   return TRUE;
5699 }
5700 
5701 /* Fill in code and data in dynamic sections.  */
5702 
5703 static bfd_boolean
elf32_frv_finish_dynamic_sections(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED)5704 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5705 				   struct bfd_link_info *info ATTRIBUTE_UNUSED)
5706 {
5707   /* Nothing to be done for non-FDPIC.  */
5708   return TRUE;
5709 }
5710 
5711 static bfd_boolean
elf32_frvfdpic_finish_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)5712 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5713 					struct bfd_link_info *info)
5714 {
5715   bfd *dynobj;
5716   asection *sdyn;
5717 
5718   dynobj = elf_hash_table (info)->dynobj;
5719 
5720   if (frvfdpic_dynamic_got_plt_info (info))
5721     {
5722       BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5723     }
5724   if (frvfdpic_got_section (info))
5725     {
5726       BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5727 		  == (frvfdpic_gotrel_section (info)->reloc_count
5728 		      * sizeof (Elf32_External_Rel)));
5729 
5730       if (frvfdpic_gotfixup_section (info))
5731 	{
5732 	  struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5733 	  bfd_vma got_value = hgot->root.u.def.value
5734 	    + hgot->root.u.def.section->output_section->vma
5735 	    + hgot->root.u.def.section->output_offset;
5736 	  struct bfd_link_hash_entry *hend;
5737 
5738 	  _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5739 				 got_value, 0);
5740 
5741 	  if (frvfdpic_gotfixup_section (info)->size
5742 	      != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5743 	    {
5744 	    error:
5745 	      info->callbacks->einfo
5746 		("LINKER BUG: .rofixup section size mismatch\n");
5747 	      return FALSE;
5748 	    }
5749 
5750 	  hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5751 				       FALSE, FALSE, TRUE);
5752 	  if (hend
5753 	      && (hend->type == bfd_link_hash_defined
5754 		  || hend->type == bfd_link_hash_defweak)
5755 	      && hend->u.def.section->output_section != NULL)
5756 	    {
5757 	      bfd_vma value =
5758 		frvfdpic_gotfixup_section (info)->output_section->vma
5759 		+ frvfdpic_gotfixup_section (info)->output_offset
5760 		+ frvfdpic_gotfixup_section (info)->size
5761 		- hend->u.def.section->output_section->vma
5762 		- hend->u.def.section->output_offset;
5763 	      BFD_ASSERT (hend->u.def.value == value);
5764 	      if (hend->u.def.value != value)
5765 		goto error;
5766 	    }
5767 	}
5768     }
5769   if (frvfdpic_pltrel_section (info))
5770     {
5771       BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5772 		  == (frvfdpic_pltrel_section (info)->reloc_count
5773 		      * sizeof (Elf32_External_Rel)));
5774     }
5775 
5776 
5777   if (elf_hash_table (info)->dynamic_sections_created)
5778     {
5779       Elf32_External_Dyn * dyncon;
5780       Elf32_External_Dyn * dynconend;
5781 
5782       sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5783 
5784       BFD_ASSERT (sdyn != NULL);
5785 
5786       dyncon = (Elf32_External_Dyn *) sdyn->contents;
5787       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5788 
5789       for (; dyncon < dynconend; dyncon++)
5790 	{
5791 	  Elf_Internal_Dyn dyn;
5792 
5793 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5794 
5795 	  switch (dyn.d_tag)
5796 	    {
5797 	    default:
5798 	      break;
5799 
5800 	    case DT_PLTGOT:
5801 	      dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5802 		+ frvfdpic_got_section (info)->output_offset
5803 		+ frvfdpic_got_initial_offset (info);
5804 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5805 	      break;
5806 
5807 	    case DT_JMPREL:
5808 	      dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5809 		->output_section->vma
5810 		+ frvfdpic_pltrel_section (info)->output_offset;
5811 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5812 	      break;
5813 
5814 	    case DT_PLTRELSZ:
5815 	      dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5816 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5817 	      break;
5818 	    }
5819 	}
5820     }
5821 
5822   return TRUE;
5823 }
5824 
5825 /* Adjust a symbol defined by a dynamic object and referenced by a
5826    regular object.  */
5827 
5828 static bfd_boolean
elf32_frvfdpic_adjust_dynamic_symbol(struct bfd_link_info * info ATTRIBUTE_UNUSED,struct elf_link_hash_entry * h ATTRIBUTE_UNUSED)5829 elf32_frvfdpic_adjust_dynamic_symbol
5830 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5831  struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5832 {
5833   bfd * dynobj;
5834 
5835   dynobj = elf_hash_table (info)->dynobj;
5836 
5837   /* Make sure we know what is going on here.  */
5838   BFD_ASSERT (dynobj != NULL
5839 	      && (h->u.weakdef != NULL
5840 		  || (h->def_dynamic
5841 		      && h->ref_regular
5842 		      && !h->def_regular)));
5843 
5844   /* If this is a weak symbol, and there is a real definition, the
5845      processor independent code will have arranged for us to see the
5846      real definition first, and we can just use the same value.  */
5847   if (h->u.weakdef != NULL)
5848     {
5849       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5850 		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
5851       h->root.u.def.section = h->u.weakdef->root.u.def.section;
5852       h->root.u.def.value = h->u.weakdef->root.u.def.value;
5853     }
5854 
5855   return TRUE;
5856 }
5857 
5858 /* Perform any actions needed for dynamic symbols.  */
5859 
5860 static bfd_boolean
elf32_frvfdpic_finish_dynamic_symbol(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,struct elf_link_hash_entry * h ATTRIBUTE_UNUSED,Elf_Internal_Sym * sym ATTRIBUTE_UNUSED)5861 elf32_frvfdpic_finish_dynamic_symbol
5862 (bfd *output_bfd ATTRIBUTE_UNUSED,
5863  struct bfd_link_info *info ATTRIBUTE_UNUSED,
5864  struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5865  Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5866 {
5867   return TRUE;
5868 }
5869 
5870 /* Decide whether to attempt to turn absptr or lsda encodings in
5871    shared libraries into pcrel within the given input section.  */
5872 
5873 static bfd_boolean
frvfdpic_elf_use_relative_eh_frame(bfd * input_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,asection * eh_frame_section ATTRIBUTE_UNUSED)5874 frvfdpic_elf_use_relative_eh_frame
5875 (bfd *input_bfd ATTRIBUTE_UNUSED,
5876  struct bfd_link_info *info ATTRIBUTE_UNUSED,
5877  asection *eh_frame_section ATTRIBUTE_UNUSED)
5878 {
5879   /* We can't use PC-relative encodings in FDPIC binaries, in general.  */
5880   return FALSE;
5881 }
5882 
5883 /* Adjust the contents of an eh_frame_hdr section before they're output.  */
5884 
5885 static bfd_byte
frvfdpic_elf_encode_eh_address(bfd * abfd,struct bfd_link_info * info,asection * osec,bfd_vma offset,asection * loc_sec,bfd_vma loc_offset,bfd_vma * encoded)5886 frvfdpic_elf_encode_eh_address (bfd *abfd,
5887 				struct bfd_link_info *info,
5888 				asection *osec, bfd_vma offset,
5889 				asection *loc_sec, bfd_vma loc_offset,
5890 				bfd_vma *encoded)
5891 {
5892   struct elf_link_hash_entry *h;
5893 
5894   h = elf_hash_table (info)->hgot;
5895   BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5896 
5897   if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5898 	      == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5899     return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5900 				       loc_sec, loc_offset, encoded);
5901 
5902   BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5903 	      == (_frvfdpic_osec_to_segment
5904 		  (abfd, h->root.u.def.section->output_section)));
5905 
5906   *encoded = osec->vma + offset
5907     - (h->root.u.def.value
5908        + h->root.u.def.section->output_section->vma
5909        + h->root.u.def.section->output_offset);
5910 
5911   return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5912 }
5913 
5914 /* Look through the relocs for a section during the first phase.
5915 
5916    Besides handling virtual table relocs for gc, we have to deal with
5917    all sorts of PIC-related relocations.  We describe below the
5918    general plan on how to handle such relocations, even though we only
5919    collect information at this point, storing them in hash tables for
5920    perusal of later passes.
5921 
5922    32 relocations are propagated to the linker output when creating
5923    position-independent output.  LO16 and HI16 relocations are not
5924    supposed to be encountered in this case.
5925 
5926    LABEL16 should always be resolvable by the linker, since it's only
5927    used by branches.
5928 
5929    LABEL24, on the other hand, is used by calls.  If it turns out that
5930    the target of a call is a dynamic symbol, a PLT entry must be
5931    created for it, which triggers the creation of a private function
5932    descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5933 
5934    GPREL relocations require the referenced symbol to be in the same
5935    segment as _gp, but this can only be checked later.
5936 
5937    All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5938    exist.  LABEL24 might as well, since it may require a PLT entry,
5939    that will require a got.
5940 
5941    Non-FUNCDESC GOT relocations require a GOT entry to be created
5942    regardless of whether the symbol is dynamic.  However, since a
5943    global symbol that turns out to not be exported may have the same
5944    address of a non-dynamic symbol, we don't assign GOT entries at
5945    this point, such that we can share them in this case.  A relocation
5946    for the GOT entry always has to be created, be it to offset a
5947    private symbol by the section load address, be it to get the symbol
5948    resolved dynamically.
5949 
5950    FUNCDESC GOT relocations require a GOT entry to be created, and
5951    handled as if a FUNCDESC relocation was applied to the GOT entry in
5952    an object file.
5953 
5954    FUNCDESC relocations referencing a symbol that turns out to NOT be
5955    dynamic cause a private function descriptor to be created.  The
5956    FUNCDESC relocation then decays to a 32 relocation that points at
5957    the private descriptor.  If the symbol is dynamic, the FUNCDESC
5958    relocation is propagated to the linker output, such that the
5959    dynamic linker creates the canonical descriptor, pointing to the
5960    dynamically-resolved definition of the function.
5961 
5962    Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5963    symbols that are assigned to the same segment as the GOT, but we
5964    can only check this later, after we know the complete set of
5965    symbols defined and/or exported.
5966 
5967    FUNCDESC GOTOFF relocations require a function descriptor to be
5968    created and, unless lazy binding is disabled or the symbol is not
5969    dynamic, a lazy PLT entry.  Since we can't tell at this point
5970    whether a symbol is going to be dynamic, we have to decide later
5971    whether to create a lazy PLT entry or bind the descriptor directly
5972    to the private function.
5973 
5974    FUNCDESC_VALUE relocations are not supposed to be present in object
5975    files, but they may very well be simply propagated to the linker
5976    output, since they have no side effect.
5977 
5978 
5979    A function descriptor always requires a FUNCDESC_VALUE relocation.
5980    Whether it's in .plt.rel or not depends on whether lazy binding is
5981    enabled and on whether the referenced symbol is dynamic.
5982 
5983    The existence of a lazy PLT requires the resolverStub lazy PLT
5984    entry to be present.
5985 
5986 
5987    As for assignment of GOT, PLT and lazy PLT entries, and private
5988    descriptors, we might do them all sequentially, but we can do
5989    better than that.  For example, we can place GOT entries and
5990    private function descriptors referenced using 12-bit operands
5991    closer to the PIC register value, such that these relocations don't
5992    overflow.  Those that are only referenced with LO16 relocations
5993    could come next, but we may as well place PLT-required function
5994    descriptors in the 12-bit range to make them shorter.  Symbols
5995    referenced with LO16/HI16 may come next, but we may place
5996    additional function descriptors in the 16-bit range if we can
5997    reliably tell that we've already placed entries that are ever
5998    referenced with only LO16.  PLT entries are therefore generated as
5999    small as possible, while not introducing relocation overflows in
6000    GOT or FUNCDESC_GOTOFF relocations.  Lazy PLT entries could be
6001    generated before or after PLT entries, but not intermingled with
6002    them, such that we can have more lazy PLT entries in range for a
6003    branch to the resolverStub.  The resolverStub should be emitted at
6004    the most distant location from the first lazy PLT entry such that
6005    it's still in range for a branch, or closer, if there isn't a need
6006    for so many lazy PLT entries.  Additional lazy PLT entries may be
6007    emitted after the resolverStub, as long as branches are still in
6008    range.  If the branch goes out of range, longer lazy PLT entries
6009    are emitted.
6010 
6011    We could further optimize PLT and lazy PLT entries by giving them
6012    priority in assignment to closer-to-gr17 locations depending on the
6013    number of occurrences of references to them (assuming a function
6014    that's called more often is more important for performance, so its
6015    PLT entry should be faster), or taking hints from the compiler.
6016    Given infinite time and money... :-)  */
6017 
6018 static bfd_boolean
elf32_frv_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)6019 elf32_frv_check_relocs (bfd *abfd,
6020 			struct bfd_link_info *info,
6021 			asection *sec,
6022 			const Elf_Internal_Rela *relocs)
6023 {
6024   Elf_Internal_Shdr *symtab_hdr;
6025   struct elf_link_hash_entry **sym_hashes;
6026   const Elf_Internal_Rela *rel;
6027   const Elf_Internal_Rela *rel_end;
6028   bfd *dynobj;
6029   struct frvfdpic_relocs_info *picrel;
6030 
6031   if (bfd_link_relocatable (info))
6032     return TRUE;
6033 
6034   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6035   sym_hashes = elf_sym_hashes (abfd);
6036 
6037   dynobj = elf_hash_table (info)->dynobj;
6038   rel_end = relocs + sec->reloc_count;
6039   for (rel = relocs; rel < rel_end; rel++)
6040     {
6041       struct elf_link_hash_entry *h;
6042       unsigned long r_symndx;
6043 
6044       r_symndx = ELF32_R_SYM (rel->r_info);
6045       if (r_symndx < symtab_hdr->sh_info)
6046         h = NULL;
6047       else
6048 	{
6049 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6050 	  while (h->root.type == bfd_link_hash_indirect
6051 		 || h->root.type == bfd_link_hash_warning)
6052 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
6053 
6054 	  /* PR15323, ref flags aren't set for references in the same
6055 	     object.  */
6056 	  h->root.non_ir_ref = 1;
6057 	}
6058 
6059       switch (ELF32_R_TYPE (rel->r_info))
6060 	{
6061 	case R_FRV_GETTLSOFF:
6062 	case R_FRV_TLSDESC_VALUE:
6063 	case R_FRV_GOTTLSDESC12:
6064 	case R_FRV_GOTTLSDESCHI:
6065 	case R_FRV_GOTTLSDESCLO:
6066 	case R_FRV_GOTTLSOFF12:
6067 	case R_FRV_GOTTLSOFFHI:
6068 	case R_FRV_GOTTLSOFFLO:
6069 	case R_FRV_TLSOFF:
6070 	case R_FRV_GOT12:
6071 	case R_FRV_GOTHI:
6072 	case R_FRV_GOTLO:
6073 	case R_FRV_FUNCDESC_GOT12:
6074 	case R_FRV_FUNCDESC_GOTHI:
6075 	case R_FRV_FUNCDESC_GOTLO:
6076 	case R_FRV_GOTOFF12:
6077 	case R_FRV_GOTOFFHI:
6078 	case R_FRV_GOTOFFLO:
6079 	case R_FRV_FUNCDESC_GOTOFF12:
6080 	case R_FRV_FUNCDESC_GOTOFFHI:
6081 	case R_FRV_FUNCDESC_GOTOFFLO:
6082 	case R_FRV_FUNCDESC:
6083 	case R_FRV_FUNCDESC_VALUE:
6084 	case R_FRV_TLSMOFF12:
6085 	case R_FRV_TLSMOFFHI:
6086 	case R_FRV_TLSMOFFLO:
6087 	case R_FRV_TLSMOFF:
6088 	  if (! IS_FDPIC (abfd))
6089 	    goto bad_reloc;
6090 	  /* Fall through.  */
6091 	case R_FRV_GPREL12:
6092 	case R_FRV_GPRELU12:
6093 	case R_FRV_GPRELHI:
6094 	case R_FRV_GPRELLO:
6095 	case R_FRV_LABEL24:
6096 	case R_FRV_32:
6097 	  if (! dynobj)
6098 	    {
6099 	      elf_hash_table (info)->dynobj = dynobj = abfd;
6100 	      if (! _frv_create_got_section (abfd, info))
6101 		return FALSE;
6102 	    }
6103 	  if (! IS_FDPIC (abfd))
6104 	    {
6105 	      picrel = NULL;
6106 	      break;
6107 	    }
6108 	  if (h != NULL)
6109 	    {
6110 	      if (h->dynindx == -1)
6111 		switch (ELF_ST_VISIBILITY (h->other))
6112 		  {
6113 		  case STV_INTERNAL:
6114 		  case STV_HIDDEN:
6115 		    break;
6116 		  default:
6117 		    bfd_elf_link_record_dynamic_symbol (info, h);
6118 		    break;
6119 		  }
6120 	      picrel
6121 		= frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6122 						   abfd, h,
6123 						   rel->r_addend, INSERT);
6124 	    }
6125 	  else
6126 	    picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6127 						     (info), abfd, r_symndx,
6128 						     rel->r_addend, INSERT);
6129 	  if (! picrel)
6130 	    return FALSE;
6131 	  break;
6132 
6133 	default:
6134 	  picrel = NULL;
6135 	  break;
6136 	}
6137 
6138       switch (ELF32_R_TYPE (rel->r_info))
6139         {
6140 	case R_FRV_LABEL24:
6141 	  if (IS_FDPIC (abfd))
6142 	    picrel->call = 1;
6143 	  break;
6144 
6145 	case R_FRV_FUNCDESC_VALUE:
6146 	  picrel->relocsfdv++;
6147 	  if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6148 	    picrel->relocs32--;
6149 	  /* Fall through.  */
6150 
6151 	case R_FRV_32:
6152 	  if (! IS_FDPIC (abfd))
6153 	    break;
6154 
6155 	  picrel->sym = 1;
6156 	  if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6157 	    picrel->relocs32++;
6158 	  break;
6159 
6160 	case R_FRV_GOT12:
6161 	  picrel->got12 = 1;
6162 	  break;
6163 
6164 	case R_FRV_GOTHI:
6165 	case R_FRV_GOTLO:
6166 	  picrel->gothilo = 1;
6167 	  break;
6168 
6169 	case R_FRV_FUNCDESC_GOT12:
6170 	  picrel->fdgot12 = 1;
6171 	  break;
6172 
6173 	case R_FRV_FUNCDESC_GOTHI:
6174 	case R_FRV_FUNCDESC_GOTLO:
6175 	  picrel->fdgothilo = 1;
6176 	  break;
6177 
6178 	case R_FRV_GOTOFF12:
6179 	case R_FRV_GOTOFFHI:
6180 	case R_FRV_GOTOFFLO:
6181 	  picrel->gotoff = 1;
6182 	  break;
6183 
6184 	case R_FRV_FUNCDESC_GOTOFF12:
6185 	  picrel->fdgoff12 = 1;
6186 	  break;
6187 
6188 	case R_FRV_FUNCDESC_GOTOFFHI:
6189 	case R_FRV_FUNCDESC_GOTOFFLO:
6190 	  picrel->fdgoffhilo = 1;
6191 	  break;
6192 
6193 	case R_FRV_FUNCDESC:
6194 	  picrel->fd = 1;
6195 	  picrel->relocsfd++;
6196 	  break;
6197 
6198 	case R_FRV_GETTLSOFF:
6199 	  picrel->tlsplt = 1;
6200 	  break;
6201 
6202 	case R_FRV_TLSDESC_VALUE:
6203 	  picrel->relocstlsd++;
6204 	  goto bad_reloc;
6205 
6206 	case R_FRV_GOTTLSDESC12:
6207 	  picrel->tlsdesc12 = 1;
6208 	  break;
6209 
6210 	case R_FRV_GOTTLSDESCHI:
6211 	case R_FRV_GOTTLSDESCLO:
6212 	  picrel->tlsdeschilo = 1;
6213 	  break;
6214 
6215 	case R_FRV_TLSMOFF12:
6216 	case R_FRV_TLSMOFFHI:
6217 	case R_FRV_TLSMOFFLO:
6218 	case R_FRV_TLSMOFF:
6219 	  break;
6220 
6221 	case R_FRV_GOTTLSOFF12:
6222 	  picrel->tlsoff12 = 1;
6223 	  info->flags |= DF_STATIC_TLS;
6224 	  break;
6225 
6226 	case R_FRV_GOTTLSOFFHI:
6227 	case R_FRV_GOTTLSOFFLO:
6228 	  picrel->tlsoffhilo = 1;
6229 	  info->flags |= DF_STATIC_TLS;
6230 	  break;
6231 
6232 	case R_FRV_TLSOFF:
6233 	  picrel->relocstlsoff++;
6234 	  info->flags |= DF_STATIC_TLS;
6235 	  goto bad_reloc;
6236 
6237         /* This relocation describes the C++ object vtable hierarchy.
6238            Reconstruct it for later use during GC.  */
6239         case R_FRV_GNU_VTINHERIT:
6240           if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6241             return FALSE;
6242           break;
6243 
6244         /* This relocation describes which C++ vtable entries are actually
6245            used.  Record for later use during GC.  */
6246         case R_FRV_GNU_VTENTRY:
6247           BFD_ASSERT (h != NULL);
6248           if (h != NULL
6249               && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6250             return FALSE;
6251           break;
6252 
6253 	case R_FRV_LABEL16:
6254 	case R_FRV_LO16:
6255 	case R_FRV_HI16:
6256 	case R_FRV_GPREL12:
6257 	case R_FRV_GPRELU12:
6258 	case R_FRV_GPREL32:
6259 	case R_FRV_GPRELHI:
6260 	case R_FRV_GPRELLO:
6261 	case R_FRV_TLSDESC_RELAX:
6262 	case R_FRV_GETTLSOFF_RELAX:
6263 	case R_FRV_TLSOFF_RELAX:
6264 	  break;
6265 
6266 	default:
6267 	bad_reloc:
6268 	  info->callbacks->einfo
6269 	    (_("%B: unsupported relocation type %i\n"),
6270 	     abfd, ELF32_R_TYPE (rel->r_info));
6271 	  return FALSE;
6272         }
6273     }
6274 
6275   return TRUE;
6276 }
6277 
6278 
6279 /* Return the machine subcode from the ELF e_flags header.  */
6280 
6281 static int
elf32_frv_machine(bfd * abfd)6282 elf32_frv_machine (bfd *abfd)
6283 {
6284   switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6285     {
6286     default:		    break;
6287     case EF_FRV_CPU_FR550:  return bfd_mach_fr550;
6288     case EF_FRV_CPU_FR500:  return bfd_mach_fr500;
6289     case EF_FRV_CPU_FR450:  return bfd_mach_fr450;
6290     case EF_FRV_CPU_FR405:  return bfd_mach_fr400;
6291     case EF_FRV_CPU_FR400:  return bfd_mach_fr400;
6292     case EF_FRV_CPU_FR300:  return bfd_mach_fr300;
6293     case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6294     case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6295     }
6296 
6297   return bfd_mach_frv;
6298 }
6299 
6300 /* Set the right machine number for a FRV ELF file.  */
6301 
6302 static bfd_boolean
elf32_frv_object_p(bfd * abfd)6303 elf32_frv_object_p (bfd *abfd)
6304 {
6305   bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6306   return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6307 	  == (IS_FDPIC (abfd)));
6308 }
6309 
6310 /* Function to set the ELF flag bits.  */
6311 
6312 static bfd_boolean
frv_elf_set_private_flags(bfd * abfd,flagword flags)6313 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6314 {
6315   elf_elfheader (abfd)->e_flags = flags;
6316   elf_flags_init (abfd) = TRUE;
6317   return TRUE;
6318 }
6319 
6320 /* Return true if the architecture described by elf header flag
6321    EXTENSION is an extension of the architecture described by BASE.  */
6322 
6323 static bfd_boolean
frv_elf_arch_extension_p(flagword base,flagword extension)6324 frv_elf_arch_extension_p (flagword base, flagword extension)
6325 {
6326   if (base == extension)
6327     return TRUE;
6328 
6329   /* CPU_GENERIC code can be merged with code for a specific
6330      architecture, in which case the result is marked as being
6331      for the specific architecture.  Everything is therefore
6332      an extension of CPU_GENERIC.  */
6333   if (base == EF_FRV_CPU_GENERIC)
6334     return TRUE;
6335 
6336   if (extension == EF_FRV_CPU_FR450)
6337     if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6338       return TRUE;
6339 
6340   if (extension == EF_FRV_CPU_FR405)
6341     if (base == EF_FRV_CPU_FR400)
6342       return TRUE;
6343 
6344   return FALSE;
6345 }
6346 
6347 /* Merge backend specific data from an object file to the output
6348    object file when linking.  */
6349 
6350 static bfd_boolean
frv_elf_merge_private_bfd_data(bfd * ibfd,bfd * obfd)6351 frv_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
6352 {
6353   flagword old_flags, old_partial;
6354   flagword new_flags, new_partial;
6355   bfd_boolean error = FALSE;
6356   char new_opt[80];
6357   char old_opt[80];
6358 
6359   new_opt[0] = old_opt[0] = '\0';
6360   new_flags = elf_elfheader (ibfd)->e_flags;
6361   old_flags = elf_elfheader (obfd)->e_flags;
6362 
6363   if (new_flags & EF_FRV_FDPIC)
6364     new_flags &= ~EF_FRV_PIC;
6365 
6366 #ifdef DEBUG
6367   (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6368 			 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6369 			 bfd_get_filename (ibfd));
6370 #endif
6371 
6372   if (!elf_flags_init (obfd))			/* First call, no flags set.  */
6373     {
6374       elf_flags_init (obfd) = TRUE;
6375       old_flags = new_flags;
6376     }
6377 
6378   else if (new_flags == old_flags)		/* Compatible flags are ok.  */
6379     ;
6380 
6381   else						/* Possibly incompatible flags.  */
6382     {
6383       /* Warn if different # of gprs are used.  Note, 0 means nothing is
6384          said about the size of gprs.  */
6385       new_partial = (new_flags & EF_FRV_GPR_MASK);
6386       old_partial = (old_flags & EF_FRV_GPR_MASK);
6387       if (new_partial == old_partial)
6388 	;
6389 
6390       else if (new_partial == 0)
6391 	;
6392 
6393       else if (old_partial == 0)
6394 	old_flags |= new_partial;
6395 
6396       else
6397 	{
6398 	  switch (new_partial)
6399 	    {
6400 	    default:		strcat (new_opt, " -mgpr-??"); break;
6401 	    case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6402 	    case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6403 	    }
6404 
6405 	  switch (old_partial)
6406 	    {
6407 	    default:		strcat (old_opt, " -mgpr-??"); break;
6408 	    case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6409 	    case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6410 	    }
6411 	}
6412 
6413       /* Warn if different # of fprs are used.  Note, 0 means nothing is
6414          said about the size of fprs.  */
6415       new_partial = (new_flags & EF_FRV_FPR_MASK);
6416       old_partial = (old_flags & EF_FRV_FPR_MASK);
6417       if (new_partial == old_partial)
6418 	;
6419 
6420       else if (new_partial == 0)
6421 	;
6422 
6423       else if (old_partial == 0)
6424 	old_flags |= new_partial;
6425 
6426       else
6427 	{
6428 	  switch (new_partial)
6429 	    {
6430 	    default:		  strcat (new_opt, " -mfpr-?");      break;
6431 	    case EF_FRV_FPR_32:   strcat (new_opt, " -mfpr-32");     break;
6432 	    case EF_FRV_FPR_64:   strcat (new_opt, " -mfpr-64");     break;
6433 	    case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6434 	    }
6435 
6436 	  switch (old_partial)
6437 	    {
6438 	    default:		  strcat (old_opt, " -mfpr-?");      break;
6439 	    case EF_FRV_FPR_32:   strcat (old_opt, " -mfpr-32");     break;
6440 	    case EF_FRV_FPR_64:   strcat (old_opt, " -mfpr-64");     break;
6441 	    case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6442 	    }
6443 	}
6444 
6445       /* Warn if different dword support was used.  Note, 0 means nothing is
6446          said about the dword support.  */
6447       new_partial = (new_flags & EF_FRV_DWORD_MASK);
6448       old_partial = (old_flags & EF_FRV_DWORD_MASK);
6449       if (new_partial == old_partial)
6450 	;
6451 
6452       else if (new_partial == 0)
6453 	;
6454 
6455       else if (old_partial == 0)
6456 	old_flags |= new_partial;
6457 
6458       else
6459 	{
6460 	  switch (new_partial)
6461 	    {
6462 	    default:		   strcat (new_opt, " -mdword-?");  break;
6463 	    case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword");    break;
6464 	    case EF_FRV_DWORD_NO:  strcat (new_opt, " -mno-dword"); break;
6465 	    }
6466 
6467 	  switch (old_partial)
6468 	    {
6469 	    default:		   strcat (old_opt, " -mdword-?");  break;
6470 	    case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword");    break;
6471 	    case EF_FRV_DWORD_NO:  strcat (old_opt, " -mno-dword"); break;
6472 	    }
6473 	}
6474 
6475       /* Or in flags that accumulate (ie, if one module uses it, mark that the
6476 	 feature is used.  */
6477       old_flags |= new_flags & (EF_FRV_DOUBLE
6478 				| EF_FRV_MEDIA
6479 				| EF_FRV_MULADD
6480 				| EF_FRV_NON_PIC_RELOCS);
6481 
6482       /* If any module was compiled without -G0, clear the G0 bit.  */
6483       old_flags = ((old_flags & ~ EF_FRV_G0)
6484 		   | (old_flags & new_flags & EF_FRV_G0));
6485 
6486       /* If any module was compiled without -mnopack, clear the mnopack bit.  */
6487       old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6488 		   | (old_flags & new_flags & EF_FRV_NOPACK));
6489 
6490       /* We don't have to do anything if the pic flags are the same, or the new
6491          module(s) were compiled with -mlibrary-pic.  */
6492       new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6493       old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6494       if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6495 	;
6496 
6497       /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6498          flags if any from the new module.  */
6499       else if ((old_partial & EF_FRV_LIBPIC) != 0)
6500 	old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6501 
6502       /* If we have mixtures of -fpic and -fPIC, or in both bits.  */
6503       else if (new_partial != 0 && old_partial != 0)
6504 	old_flags |= new_partial;
6505 
6506       /* One module was compiled for pic and the other was not, see if we have
6507          had any relocations that are not pic-safe.  */
6508       else
6509 	{
6510 	  if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6511 	    old_flags |= new_partial;
6512 	  else
6513 	    {
6514 	      old_flags &= ~ EF_FRV_PIC_FLAGS;
6515 #ifndef FRV_NO_PIC_ERROR
6516 	      error = TRUE;
6517 	      (*_bfd_error_handler)
6518 		(_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6519 		 bfd_get_filename (ibfd),
6520 		 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6521 #endif
6522 	    }
6523 	}
6524 
6525       /* Warn if different cpu is used (allow a specific cpu to override
6526 	 the generic cpu).  */
6527       new_partial = (new_flags & EF_FRV_CPU_MASK);
6528       old_partial = (old_flags & EF_FRV_CPU_MASK);
6529       if (frv_elf_arch_extension_p (new_partial, old_partial))
6530 	;
6531 
6532       else if (frv_elf_arch_extension_p (old_partial, new_partial))
6533 	old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6534 
6535       else
6536 	{
6537 	  switch (new_partial)
6538 	    {
6539 	    default:		     strcat (new_opt, " -mcpu=?");      break;
6540 	    case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv");    break;
6541 	    case EF_FRV_CPU_SIMPLE:  strcat (new_opt, " -mcpu=simple"); break;
6542 	    case EF_FRV_CPU_FR550:   strcat (new_opt, " -mcpu=fr550");  break;
6543 	    case EF_FRV_CPU_FR500:   strcat (new_opt, " -mcpu=fr500");  break;
6544 	    case EF_FRV_CPU_FR450:   strcat (new_opt, " -mcpu=fr450");  break;
6545 	    case EF_FRV_CPU_FR405:   strcat (new_opt, " -mcpu=fr405");  break;
6546 	    case EF_FRV_CPU_FR400:   strcat (new_opt, " -mcpu=fr400");  break;
6547 	    case EF_FRV_CPU_FR300:   strcat (new_opt, " -mcpu=fr300");  break;
6548 	    case EF_FRV_CPU_TOMCAT:  strcat (new_opt, " -mcpu=tomcat"); break;
6549 	    }
6550 
6551 	  switch (old_partial)
6552 	    {
6553 	    default:		     strcat (old_opt, " -mcpu=?");      break;
6554 	    case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv");    break;
6555 	    case EF_FRV_CPU_SIMPLE:  strcat (old_opt, " -mcpu=simple"); break;
6556 	    case EF_FRV_CPU_FR550:   strcat (old_opt, " -mcpu=fr550");  break;
6557 	    case EF_FRV_CPU_FR500:   strcat (old_opt, " -mcpu=fr500");  break;
6558 	    case EF_FRV_CPU_FR450:   strcat (old_opt, " -mcpu=fr450");  break;
6559 	    case EF_FRV_CPU_FR405:   strcat (old_opt, " -mcpu=fr405");  break;
6560 	    case EF_FRV_CPU_FR400:   strcat (old_opt, " -mcpu=fr400");  break;
6561 	    case EF_FRV_CPU_FR300:   strcat (old_opt, " -mcpu=fr300");  break;
6562 	    case EF_FRV_CPU_TOMCAT:  strcat (old_opt, " -mcpu=tomcat"); break;
6563 	    }
6564 	}
6565 
6566       /* Print out any mismatches from above.  */
6567       if (new_opt[0])
6568 	{
6569 	  error = TRUE;
6570 	  (*_bfd_error_handler)
6571 	    (_("%s: compiled with %s and linked with modules compiled with %s"),
6572 	     bfd_get_filename (ibfd), new_opt, old_opt);
6573 	}
6574 
6575       /* Warn about any other mismatches */
6576       new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6577       old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6578       if (new_partial != old_partial)
6579 	{
6580 	  old_flags |= new_partial;
6581 	  error = TRUE;
6582 	  (*_bfd_error_handler)
6583 	    (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6584 	     bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6585 	}
6586     }
6587 
6588   /* If the cpu is -mcpu=simple, then set the -mnopack bit.  */
6589   if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6590     old_flags |= EF_FRV_NOPACK;
6591 
6592   /* Update the old flags now with changes made above.  */
6593   old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6594   elf_elfheader (obfd)->e_flags = old_flags;
6595   if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6596     bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6597 
6598   if (((new_flags & EF_FRV_FDPIC) == 0)
6599       != (! IS_FDPIC (ibfd)))
6600     {
6601       error = TRUE;
6602       if (IS_FDPIC (obfd))
6603 	(*_bfd_error_handler)
6604 	  (_("%s: cannot link non-fdpic object file into fdpic executable"),
6605 	   bfd_get_filename (ibfd));
6606       else
6607 	(*_bfd_error_handler)
6608 	  (_("%s: cannot link fdpic object file into non-fdpic executable"),
6609 	   bfd_get_filename (ibfd));
6610     }
6611 
6612   if (error)
6613     bfd_set_error (bfd_error_bad_value);
6614 
6615   return !error;
6616 }
6617 
6618 
6619 static bfd_boolean
frv_elf_print_private_bfd_data(bfd * abfd,void * ptr)6620 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6621 {
6622   FILE *file = (FILE *) ptr;
6623   flagword flags;
6624 
6625   BFD_ASSERT (abfd != NULL && ptr != NULL);
6626 
6627   /* Print normal ELF private data.  */
6628   _bfd_elf_print_private_bfd_data (abfd, ptr);
6629 
6630   flags = elf_elfheader (abfd)->e_flags;
6631   fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6632 
6633   switch (flags & EF_FRV_CPU_MASK)
6634     {
6635     default:							break;
6636     case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple");	break;
6637     case EF_FRV_CPU_FR550:  fprintf (file, " -mcpu=fr550");	break;
6638     case EF_FRV_CPU_FR500:  fprintf (file, " -mcpu=fr500");	break;
6639     case EF_FRV_CPU_FR450:  fprintf (file, " -mcpu=fr450");	break;
6640     case EF_FRV_CPU_FR405:  fprintf (file, " -mcpu=fr405");	break;
6641     case EF_FRV_CPU_FR400:  fprintf (file, " -mcpu=fr400");	break;
6642     case EF_FRV_CPU_FR300:  fprintf (file, " -mcpu=fr300");	break;
6643     case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat");	break;
6644     }
6645 
6646   switch (flags & EF_FRV_GPR_MASK)
6647     {
6648     default:							break;
6649     case EF_FRV_GPR_32: fprintf (file, " -mgpr-32");		break;
6650     case EF_FRV_GPR_64: fprintf (file, " -mgpr-64");		break;
6651     }
6652 
6653   switch (flags & EF_FRV_FPR_MASK)
6654     {
6655     default:							break;
6656     case EF_FRV_FPR_32:   fprintf (file, " -mfpr-32");		break;
6657     case EF_FRV_FPR_64:   fprintf (file, " -mfpr-64");		break;
6658     case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float");	break;
6659     }
6660 
6661   switch (flags & EF_FRV_DWORD_MASK)
6662     {
6663     default:							break;
6664     case EF_FRV_DWORD_YES: fprintf (file, " -mdword");		break;
6665     case EF_FRV_DWORD_NO:  fprintf (file, " -mno-dword");	break;
6666     }
6667 
6668   if (flags & EF_FRV_DOUBLE)
6669     fprintf (file, " -mdouble");
6670 
6671   if (flags & EF_FRV_MEDIA)
6672     fprintf (file, " -mmedia");
6673 
6674   if (flags & EF_FRV_MULADD)
6675     fprintf (file, " -mmuladd");
6676 
6677   if (flags & EF_FRV_PIC)
6678     fprintf (file, " -fpic");
6679 
6680   if (flags & EF_FRV_BIGPIC)
6681     fprintf (file, " -fPIC");
6682 
6683   if (flags & EF_FRV_LIBPIC)
6684     fprintf (file, " -mlibrary-pic");
6685 
6686   if (flags & EF_FRV_FDPIC)
6687     fprintf (file, " -mfdpic");
6688 
6689   if (flags & EF_FRV_NON_PIC_RELOCS)
6690     fprintf (file, " non-pic relocations");
6691 
6692   if (flags & EF_FRV_G0)
6693     fprintf (file, " -G0");
6694 
6695   fputc ('\n', file);
6696   return TRUE;
6697 }
6698 
6699 
6700 /* Support for core dump NOTE sections.  */
6701 
6702 static bfd_boolean
elf32_frv_grok_prstatus(bfd * abfd,Elf_Internal_Note * note)6703 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6704 {
6705   int offset;
6706   unsigned int raw_size;
6707 
6708   switch (note->descsz)
6709     {
6710       default:
6711 	return FALSE;
6712 
6713       /* The Linux/FRV elf_prstatus struct is 268 bytes long.  The other
6714          hardcoded offsets and sizes listed below (and contained within
6715 	 this lexical block) refer to fields in the target's elf_prstatus
6716 	 struct.  */
6717       case 268:
6718 	/* `pr_cursig' is at offset 12.  */
6719 	elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6720 
6721 	/* `pr_pid' is at offset 24.  */
6722 	elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6723 
6724 	/* `pr_reg' is at offset 72.  */
6725 	offset = 72;
6726 
6727 	/* Most grok_prstatus implementations set `raw_size' to the size
6728 	   of the pr_reg field.  For Linux/FRV, we set `raw_size' to be
6729 	   the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6730 	   and `pr_interp_fdpic_loadmap', both of which (by design)
6731 	   immediately follow `pr_reg'.  This will allow these fields to
6732 	   be viewed by GDB as registers.
6733 
6734 	   `pr_reg' is 184 bytes long.  `pr_exec_fdpic_loadmap' and
6735 	   `pr_interp_fdpic_loadmap' are 4 bytes each.  */
6736 	raw_size = 184 + 4 + 4;
6737 
6738 	break;
6739     }
6740 
6741   /* Make a ".reg/999" section.  */
6742   return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6743 					  note->descpos + offset);
6744 }
6745 
6746 static bfd_boolean
elf32_frv_grok_psinfo(bfd * abfd,Elf_Internal_Note * note)6747 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6748 {
6749   switch (note->descsz)
6750     {
6751       default:
6752 	return FALSE;
6753 
6754       /* The Linux/FRV elf_prpsinfo struct is 124 bytes long.  */
6755       case 124:
6756 
6757 	/* `pr_fname' is found at offset 28 and is 16 bytes long.  */
6758 	elf_tdata (abfd)->core->program
6759 	  = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6760 
6761 	/* `pr_psargs' is found at offset 44 and is 80 bytes long.  */
6762 	elf_tdata (abfd)->core->command
6763 	  = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6764     }
6765 
6766   /* Note that for some reason, a spurious space is tacked
6767      onto the end of the args in some (at least one anyway)
6768      implementations, so strip it off if it exists.  */
6769 
6770   {
6771     char *command = elf_tdata (abfd)->core->command;
6772     int n = strlen (command);
6773 
6774     if (0 < n && command[n - 1] == ' ')
6775       command[n - 1] = '\0';
6776   }
6777 
6778   return TRUE;
6779 }
6780 #define ELF_ARCH		bfd_arch_frv
6781 #define ELF_TARGET_ID		FRV_ELF_DATA
6782 #define ELF_MACHINE_CODE	EM_CYGNUS_FRV
6783 #define ELF_MAXPAGESIZE		0x1000
6784 
6785 #define TARGET_BIG_SYM          frv_elf32_vec
6786 #define TARGET_BIG_NAME		"elf32-frv"
6787 
6788 #define elf_info_to_howto			frv_info_to_howto_rela
6789 #define elf_backend_relocate_section		elf32_frv_relocate_section
6790 #define elf_backend_gc_mark_hook		elf32_frv_gc_mark_hook
6791 #define elf_backend_check_relocs                elf32_frv_check_relocs
6792 #define elf_backend_object_p			elf32_frv_object_p
6793 #define elf_backend_add_symbol_hook             elf32_frv_add_symbol_hook
6794 
6795 #define elf_backend_stack_align			8
6796 #define elf_backend_can_gc_sections		1
6797 #define elf_backend_rela_normal			1
6798 
6799 #define bfd_elf32_bfd_reloc_type_lookup		frv_reloc_type_lookup
6800 #define bfd_elf32_bfd_reloc_name_lookup	frv_reloc_name_lookup
6801 #define bfd_elf32_bfd_set_private_flags		frv_elf_set_private_flags
6802 #define bfd_elf32_bfd_merge_private_bfd_data	frv_elf_merge_private_bfd_data
6803 #define bfd_elf32_bfd_print_private_bfd_data	frv_elf_print_private_bfd_data
6804 
6805 #define elf_backend_want_got_sym	1
6806 #define elf_backend_got_header_size	0
6807 #define elf_backend_want_got_plt	0
6808 #define elf_backend_plt_readonly	1
6809 #define elf_backend_want_plt_sym	0
6810 #define elf_backend_plt_header_size	0
6811 
6812 #define elf_backend_finish_dynamic_sections \
6813 		elf32_frv_finish_dynamic_sections
6814 
6815 #define elf_backend_grok_prstatus	elf32_frv_grok_prstatus
6816 #define elf_backend_grok_psinfo		elf32_frv_grok_psinfo
6817 
6818 #include "elf32-target.h"
6819 
6820 #undef ELF_MAXPAGESIZE
6821 #define ELF_MAXPAGESIZE		0x4000
6822 
6823 #undef TARGET_BIG_SYM
6824 #define TARGET_BIG_SYM          frv_elf32_fdpic_vec
6825 #undef TARGET_BIG_NAME
6826 #define TARGET_BIG_NAME		"elf32-frvfdpic"
6827 #undef	elf32_bed
6828 #define	elf32_bed		elf32_frvfdpic_bed
6829 
6830 #undef elf_info_to_howto_rel
6831 #define elf_info_to_howto_rel	frvfdpic_info_to_howto_rel
6832 
6833 #undef bfd_elf32_bfd_link_hash_table_create
6834 #define bfd_elf32_bfd_link_hash_table_create \
6835 		frvfdpic_elf_link_hash_table_create
6836 #undef elf_backend_always_size_sections
6837 #define elf_backend_always_size_sections \
6838 		elf32_frvfdpic_always_size_sections
6839 
6840 #undef elf_backend_create_dynamic_sections
6841 #define elf_backend_create_dynamic_sections \
6842 		elf32_frvfdpic_create_dynamic_sections
6843 #undef elf_backend_adjust_dynamic_symbol
6844 #define elf_backend_adjust_dynamic_symbol \
6845 		elf32_frvfdpic_adjust_dynamic_symbol
6846 #undef elf_backend_size_dynamic_sections
6847 #define elf_backend_size_dynamic_sections \
6848 		elf32_frvfdpic_size_dynamic_sections
6849 #undef bfd_elf32_bfd_relax_section
6850 #define bfd_elf32_bfd_relax_section \
6851   elf32_frvfdpic_relax_section
6852 #undef elf_backend_finish_dynamic_symbol
6853 #define elf_backend_finish_dynamic_symbol \
6854 		elf32_frvfdpic_finish_dynamic_symbol
6855 #undef elf_backend_finish_dynamic_sections
6856 #define elf_backend_finish_dynamic_sections \
6857 		elf32_frvfdpic_finish_dynamic_sections
6858 
6859 #undef elf_backend_discard_info
6860 #define elf_backend_discard_info \
6861 		frvfdpic_elf_discard_info
6862 #undef elf_backend_can_make_relative_eh_frame
6863 #define elf_backend_can_make_relative_eh_frame \
6864 		frvfdpic_elf_use_relative_eh_frame
6865 #undef elf_backend_can_make_lsda_relative_eh_frame
6866 #define elf_backend_can_make_lsda_relative_eh_frame \
6867 		frvfdpic_elf_use_relative_eh_frame
6868 #undef elf_backend_encode_eh_address
6869 #define elf_backend_encode_eh_address \
6870 		frvfdpic_elf_encode_eh_address
6871 
6872 #undef elf_backend_may_use_rel_p
6873 #define elf_backend_may_use_rel_p       1
6874 #undef elf_backend_may_use_rela_p
6875 #define elf_backend_may_use_rela_p      1
6876 /* We use REL for dynamic relocations only.  */
6877 #undef elf_backend_default_use_rela_p
6878 #define elf_backend_default_use_rela_p  1
6879 
6880 #undef elf_backend_omit_section_dynsym
6881 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6882 
6883 #include "elf32-target.h"
6884