1 /* FRV-specific support for 32-bit ELF.
2    Copyright (C) 2002-2021 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 #include "libiberty.h"
29 
30 /* Forward declarations.  */
31 
32 
33 static reloc_howto_type elf32_frv_howto_table [] =
34 {
35   /* This reloc does nothing.  */
36   HOWTO (R_FRV_NONE,		/* type */
37 	 0,			/* rightshift */
38 	 3,			/* size (0 = byte, 1 = short, 2 = long) */
39 	 0,			/* bitsize */
40 	 false,			/* pc_relative */
41 	 0,			/* bitpos */
42 	 complain_overflow_dont, /* complain_on_overflow */
43 	 bfd_elf_generic_reloc,	/* special_function */
44 	 "R_FRV_NONE",		/* name */
45 	 false,			/* partial_inplace */
46 	 0,			/* src_mask */
47 	 0,			/* dst_mask */
48 	 false),		/* pcrel_offset */
49 
50   /* A 32 bit absolute relocation.  */
51   HOWTO (R_FRV_32,		/* type */
52 	 0,			/* rightshift */
53 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
54 	 32,			/* bitsize */
55 	 false,			/* pc_relative */
56 	 0,			/* bitpos */
57 	 complain_overflow_bitfield, /* complain_on_overflow */
58 	 bfd_elf_generic_reloc,	/* special_function */
59 	 "R_FRV_32",		/* name */
60 	 false,			/* partial_inplace */
61 	 0xffffffff,		/* src_mask */
62 	 0xffffffff,		/* dst_mask */
63 	 false),		/* pcrel_offset */
64 
65   /* A 16 bit pc-relative relocation.  */
66   HOWTO (R_FRV_LABEL16,		/* type */
67 	 2,			/* rightshift */
68 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
69 	 16,			/* bitsize */
70 	 true,			/* pc_relative */
71 	 0,			/* bitpos */
72 	 complain_overflow_signed, /* complain_on_overflow */
73 	 bfd_elf_generic_reloc,	/* special_function */
74 	 "R_FRV_LABEL16",	/* name */
75 	 false,			/* partial_inplace */
76 	 0xffff,		/* src_mask */
77 	 0xffff,		/* dst_mask */
78 	 true),			/* pcrel_offset */
79 
80   /* A 24-bit pc-relative relocation.  */
81   HOWTO (R_FRV_LABEL24,		/* type */
82 	 2,			/* rightshift */
83 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
84 	 26,			/* bitsize */
85 	 true,			/* pc_relative */
86 	 0,			/* bitpos */
87 	 complain_overflow_bitfield, /* complain_on_overflow */
88 	 bfd_elf_generic_reloc,	/* special_function */
89 	 "R_FRV_LABEL24",	/* name */
90 	 false,			/* partial_inplace */
91 	 0x7e03ffff,		/* src_mask */
92 	 0x7e03ffff,		/* dst_mask */
93 	 true),			/* pcrel_offset */
94 
95   HOWTO (R_FRV_LO16,		/* type */
96 	 0,			/* rightshift */
97 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
98 	 16,			/* bitsize */
99 	 false,			/* pc_relative */
100 	 0,			/* bitpos */
101 	 complain_overflow_dont, /* complain_on_overflow */
102 	 bfd_elf_generic_reloc,	/* special_function */
103 	 "R_FRV_LO16",		/* name */
104 	 false,			/* partial_inplace */
105 	 0xffff,		/* src_mask */
106 	 0xffff,		/* dst_mask */
107 	 false),		/* pcrel_offset */
108 
109   HOWTO (R_FRV_HI16,		/* type */
110 	 0,			/* rightshift */
111 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
112 	 16,			/* bitsize */
113 	 false,			/* pc_relative */
114 	 0,			/* bitpos */
115 	 complain_overflow_dont, /* complain_on_overflow */
116 	 bfd_elf_generic_reloc,	/* special_function */
117 	 "R_FRV_HI16",		/* name */
118 	 false,			/* partial_inplace */
119 	 0xffff,		/* src_mask */
120 	 0xffff,		/* dst_mask */
121 	 false),		/* pcrel_offset */
122 
123   HOWTO (R_FRV_GPREL12,		/* type */
124 	 0,			/* rightshift */
125 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
126 	 12,			/* bitsize */
127 	 false,			/* pc_relative */
128 	 0,			/* bitpos */
129 	 complain_overflow_dont, /* complain_on_overflow */
130 	 bfd_elf_generic_reloc,	/* special_function */
131 	 "R_FRV_GPREL12",	/* name */
132 	 false,			/* partial_inplace */
133 	 0xfff,			/* src_mask */
134 	 0xfff,			/* dst_mask */
135 	 false),		/* pcrel_offset */
136 
137   HOWTO (R_FRV_GPRELU12,	/* type */
138 	 0,			/* rightshift */
139 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
140 	 12,			/* bitsize */
141 	 false,			/* pc_relative */
142 	 0,			/* bitpos */
143 	 complain_overflow_dont, /* complain_on_overflow */
144 	 bfd_elf_generic_reloc,	/* special_function */
145 	 "R_FRV_GPRELU12",	/* name */
146 	 false,			/* partial_inplace */
147 	 0xfff,			/* src_mask */
148 	 0x3f03f,		/* dst_mask */
149 	 false),		/* pcrel_offset */
150 
151   HOWTO (R_FRV_GPREL32,		/* type */
152 	 0,			/* rightshift */
153 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
154 	 32,			/* bitsize */
155 	 false,			/* pc_relative */
156 	 0,			/* bitpos */
157 	 complain_overflow_dont, /* complain_on_overflow */
158 	 bfd_elf_generic_reloc,	/* special_function */
159 	 "R_FRV_GPREL32",	/* name */
160 	 false,			/* partial_inplace */
161 	 0xffffffff,		/* src_mask */
162 	 0xffffffff,		/* dst_mask */
163 	 false),		/* pcrel_offset */
164 
165   HOWTO (R_FRV_GPRELHI,		/* type */
166 	 0,			/* rightshift */
167 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
168 	 16,			/* bitsize */
169 	 false,			/* pc_relative */
170 	 0,			/* bitpos */
171 	 complain_overflow_dont, /* complain_on_overflow */
172 	 bfd_elf_generic_reloc,	/* special_function */
173 	 "R_FRV_GPRELHI",	/* name */
174 	 false,			/* partial_inplace */
175 	 0xffff,		/* src_mask */
176 	 0xffff,		/* dst_mask */
177 	 false),		/* pcrel_offset */
178 
179   HOWTO (R_FRV_GPRELLO,		/* type */
180 	 0,			/* rightshift */
181 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
182 	 16,			/* bitsize */
183 	 false,			/* pc_relative */
184 	 0,			/* bitpos */
185 	 complain_overflow_dont, /* complain_on_overflow */
186 	 bfd_elf_generic_reloc,	/* special_function */
187 	 "R_FRV_GPRELLO",	/* name */
188 	 false,			/* partial_inplace */
189 	 0xffff,		/* src_mask */
190 	 0xffff,		/* dst_mask */
191 	 false),		/* pcrel_offset */
192 
193   /* A 12-bit signed operand with the GOT offset for the address of
194      the symbol.  */
195   HOWTO (R_FRV_GOT12,		/* type */
196 	 0,			/* rightshift */
197 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
198 	 12,			/* bitsize */
199 	 false,			/* pc_relative */
200 	 0,			/* bitpos */
201 	 complain_overflow_signed, /* complain_on_overflow */
202 	 bfd_elf_generic_reloc,	/* special_function */
203 	 "R_FRV_GOT12",		/* name */
204 	 false,			/* partial_inplace */
205 	 0xfff,			/* src_mask */
206 	 0xfff,			/* dst_mask */
207 	 false),		/* pcrel_offset */
208 
209   /* The upper 16 bits of the GOT offset for the address of the
210      symbol.  */
211   HOWTO (R_FRV_GOTHI,		/* type */
212 	 0,			/* rightshift */
213 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
214 	 16,			/* bitsize */
215 	 false,			/* pc_relative */
216 	 0,			/* bitpos */
217 	 complain_overflow_dont, /* complain_on_overflow */
218 	 bfd_elf_generic_reloc,	/* special_function */
219 	 "R_FRV_GOTHI",		/* name */
220 	 false,			/* partial_inplace */
221 	 0xffff,		/* src_mask */
222 	 0xffff,		/* dst_mask */
223 	 false),		/* pcrel_offset */
224 
225   /* The lower 16 bits of the GOT offset for the address of the
226      symbol.  */
227   HOWTO (R_FRV_GOTLO,		/* type */
228 	 0,			/* rightshift */
229 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
230 	 16,			/* bitsize */
231 	 false,			/* pc_relative */
232 	 0,			/* bitpos */
233 	 complain_overflow_dont, /* complain_on_overflow */
234 	 bfd_elf_generic_reloc,	/* special_function */
235 	 "R_FRV_GOTLO",		/* name */
236 	 false,			/* partial_inplace */
237 	 0xffff,		/* src_mask */
238 	 0xffff,		/* dst_mask */
239 	 false),		/* pcrel_offset */
240 
241   /* The 32-bit address of the canonical descriptor of a function.  */
242   HOWTO (R_FRV_FUNCDESC,	/* type */
243 	 0,			/* rightshift */
244 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
245 	 32,			/* bitsize */
246 	 false,			/* pc_relative */
247 	 0,			/* bitpos */
248 	 complain_overflow_bitfield, /* complain_on_overflow */
249 	 bfd_elf_generic_reloc,	/* special_function */
250 	 "R_FRV_FUNCDESC",	/* name */
251 	 false,			/* partial_inplace */
252 	 0xffffffff,		/* src_mask */
253 	 0xffffffff,		/* dst_mask */
254 	 false),		/* pcrel_offset */
255 
256   /* A 12-bit signed operand with the GOT offset for the address of
257      canonical descriptor of a function.  */
258   HOWTO (R_FRV_FUNCDESC_GOT12,	/* type */
259 	 0,			/* rightshift */
260 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
261 	 12,			/* bitsize */
262 	 false,			/* pc_relative */
263 	 0,			/* bitpos */
264 	 complain_overflow_signed, /* complain_on_overflow */
265 	 bfd_elf_generic_reloc,	/* special_function */
266 	 "R_FRV_FUNCDESC_GOT12", /* name */
267 	 false,			/* partial_inplace */
268 	 0xfff,			/* src_mask */
269 	 0xfff,			/* dst_mask */
270 	 false),		/* pcrel_offset */
271 
272   /* The upper 16 bits of the GOT offset for the address of the
273      canonical descriptor of a function.  */
274   HOWTO (R_FRV_FUNCDESC_GOTHI,	/* type */
275 	 0,			/* rightshift */
276 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
277 	 16,			/* bitsize */
278 	 false,			/* pc_relative */
279 	 0,			/* bitpos */
280 	 complain_overflow_dont, /* complain_on_overflow */
281 	 bfd_elf_generic_reloc,	/* special_function */
282 	 "R_FRV_FUNCDESC_GOTHI", /* name */
283 	 false,			/* partial_inplace */
284 	 0xffff,		/* src_mask */
285 	 0xffff,		/* dst_mask */
286 	 false),		/* pcrel_offset */
287 
288   /* The lower 16 bits of the GOT offset for the address of the
289      canonical descriptor of a function.  */
290   HOWTO (R_FRV_FUNCDESC_GOTLO,	/* type */
291 	 0,			/* rightshift */
292 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
293 	 16,			/* bitsize */
294 	 false,			/* pc_relative */
295 	 0,			/* bitpos */
296 	 complain_overflow_dont, /* complain_on_overflow */
297 	 bfd_elf_generic_reloc,	/* special_function */
298 	 "R_FRV_FUNCDESC_GOTLO", /* name */
299 	 false,			/* partial_inplace */
300 	 0xffff,		/* src_mask */
301 	 0xffff,		/* dst_mask */
302 	 false),		/* pcrel_offset */
303 
304   /* The 64-bit descriptor of a function.  */
305   HOWTO (R_FRV_FUNCDESC_VALUE,	/* type */
306 	 0,			/* rightshift */
307 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
308 	 64,			/* bitsize */
309 	 false,			/* pc_relative */
310 	 0,			/* bitpos */
311 	 complain_overflow_bitfield, /* complain_on_overflow */
312 	 bfd_elf_generic_reloc,	/* special_function */
313 	 "R_FRV_FUNCDESC_VALUE", /* name */
314 	 false,			/* partial_inplace */
315 	 0xffffffff,		/* src_mask */
316 	 0xffffffff,		/* dst_mask */
317 	 false),		/* pcrel_offset */
318 
319   /* A 12-bit signed operand with the GOT offset for the address of
320      canonical descriptor of a function.  */
321   HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
322 	 0,			/* rightshift */
323 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
324 	 12,			/* bitsize */
325 	 false,			/* pc_relative */
326 	 0,			/* bitpos */
327 	 complain_overflow_signed, /* complain_on_overflow */
328 	 bfd_elf_generic_reloc,	/* special_function */
329 	 "R_FRV_FUNCDESC_GOTOFF12", /* name */
330 	 false,			/* partial_inplace */
331 	 0xfff,			/* src_mask */
332 	 0xfff,			/* dst_mask */
333 	 false),		/* pcrel_offset */
334 
335   /* The upper 16 bits of the GOT offset for the address of the
336      canonical descriptor of a function.  */
337   HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
338 	 0,			/* rightshift */
339 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
340 	 16,			/* bitsize */
341 	 false,			/* pc_relative */
342 	 0,			/* bitpos */
343 	 complain_overflow_dont, /* complain_on_overflow */
344 	 bfd_elf_generic_reloc,	/* special_function */
345 	 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
346 	 false,			/* partial_inplace */
347 	 0xffff,		/* src_mask */
348 	 0xffff,		/* dst_mask */
349 	 false),		/* pcrel_offset */
350 
351   /* The lower 16 bits of the GOT offset for the address of the
352      canonical descriptor of a function.  */
353   HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
354 	 0,			/* rightshift */
355 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
356 	 16,			/* bitsize */
357 	 false,			/* pc_relative */
358 	 0,			/* bitpos */
359 	 complain_overflow_dont, /* complain_on_overflow */
360 	 bfd_elf_generic_reloc,	/* special_function */
361 	 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
362 	 false,			/* partial_inplace */
363 	 0xffff,		/* src_mask */
364 	 0xffff,		/* dst_mask */
365 	 false),		/* pcrel_offset */
366 
367   /* A 12-bit signed operand with the GOT offset for the address of
368      the symbol.  */
369   HOWTO (R_FRV_GOTOFF12,	/* type */
370 	 0,			/* rightshift */
371 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
372 	 12,			/* bitsize */
373 	 false,			/* pc_relative */
374 	 0,			/* bitpos */
375 	 complain_overflow_signed, /* complain_on_overflow */
376 	 bfd_elf_generic_reloc,	/* special_function */
377 	 "R_FRV_GOTOFF12",	/* name */
378 	 false,			/* partial_inplace */
379 	 0xfff,			/* src_mask */
380 	 0xfff,			/* dst_mask */
381 	 false),		/* pcrel_offset */
382 
383   /* The upper 16 bits of the GOT offset for the address of the
384      symbol.  */
385   HOWTO (R_FRV_GOTOFFHI,	/* type */
386 	 0,			/* rightshift */
387 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
388 	 16,			/* bitsize */
389 	 false,			/* pc_relative */
390 	 0,			/* bitpos */
391 	 complain_overflow_dont, /* complain_on_overflow */
392 	 bfd_elf_generic_reloc,	/* special_function */
393 	 "R_FRV_GOTOFFHI",	/* name */
394 	 false,			/* partial_inplace */
395 	 0xffff,		/* src_mask */
396 	 0xffff,		/* dst_mask */
397 	 false),		/* pcrel_offset */
398 
399   /* The lower 16 bits of the GOT offset for the address of the
400      symbol.  */
401   HOWTO (R_FRV_GOTOFFLO,	/* type */
402 	 0,			/* rightshift */
403 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
404 	 16,			/* bitsize */
405 	 false,			/* pc_relative */
406 	 0,			/* bitpos */
407 	 complain_overflow_dont, /* complain_on_overflow */
408 	 bfd_elf_generic_reloc,	/* special_function */
409 	 "R_FRV_GOTOFFLO",	/* name */
410 	 false,			/* partial_inplace */
411 	 0xffff,		/* src_mask */
412 	 0xffff,		/* dst_mask */
413 	 false),		/* pcrel_offset */
414 
415   /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
416      a thread-local symbol.  If the symbol number is 0, it refers to
417      the module.  */
418   HOWTO (R_FRV_GETTLSOFF,	/* type */
419 	 2,			/* rightshift */
420 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
421 	 26,			/* bitsize */
422 	 true,			/* pc_relative */
423 	 0,			/* bitpos */
424 	 complain_overflow_bitfield, /* complain_on_overflow */
425 	 bfd_elf_generic_reloc,	/* special_function */
426 	 "R_FRV_GETTLSOFF",	/* name */
427 	 false,			/* partial_inplace */
428 	 0x7e03ffff,		/* src_mask */
429 	 0x7e03ffff,		/* dst_mask */
430 	 true),			/* pcrel_offset */
431 
432   /* A 64-bit TLS descriptor for a symbol.  This relocation is only
433      valid as a REL, dynamic relocation.  */
434   HOWTO (R_FRV_TLSDESC_VALUE,	/* type */
435 	 0,			/* rightshift */
436 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
437 	 64,			/* bitsize */
438 	 false,			/* pc_relative */
439 	 0,			/* bitpos */
440 	 complain_overflow_bitfield, /* complain_on_overflow */
441 	 bfd_elf_generic_reloc,	/* special_function */
442 	 "R_FRV_TLSDESC_VALUE", /* name */
443 	 false,			/* partial_inplace */
444 	 0xffffffff,		/* src_mask */
445 	 0xffffffff,		/* dst_mask */
446 	 false),		/* pcrel_offset */
447 
448   /* A 12-bit signed operand with the GOT offset for the TLS
449      descriptor of the symbol.  */
450   HOWTO (R_FRV_GOTTLSDESC12,	/* type */
451 	 0,			/* rightshift */
452 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
453 	 12,			/* bitsize */
454 	 false,			/* pc_relative */
455 	 0,			/* bitpos */
456 	 complain_overflow_signed, /* complain_on_overflow */
457 	 bfd_elf_generic_reloc,	/* special_function */
458 	 "R_FRV_GOTTLSDESC12",	/* name */
459 	 false,			/* partial_inplace */
460 	 0xfff,			/* src_mask */
461 	 0xfff,			/* dst_mask */
462 	 false),		/* pcrel_offset */
463 
464   /* The upper 16 bits of the GOT offset for the TLS descriptor of the
465      symbol.  */
466   HOWTO (R_FRV_GOTTLSDESCHI,	/* type */
467 	 0,			/* rightshift */
468 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
469 	 16,			/* bitsize */
470 	 false,			/* pc_relative */
471 	 0,			/* bitpos */
472 	 complain_overflow_dont, /* complain_on_overflow */
473 	 bfd_elf_generic_reloc,	/* special_function */
474 	 "R_FRV_GOTTLSDESCHI",	/* name */
475 	 false,			/* partial_inplace */
476 	 0xffff,		/* src_mask */
477 	 0xffff,		/* dst_mask */
478 	 false),		/* pcrel_offset */
479 
480   /* The lower 16 bits of the GOT offset for the TLS descriptor of the
481      symbol.  */
482   HOWTO (R_FRV_GOTTLSDESCLO,	/* type */
483 	 0,			/* rightshift */
484 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
485 	 16,			/* bitsize */
486 	 false,			/* pc_relative */
487 	 0,			/* bitpos */
488 	 complain_overflow_dont, /* complain_on_overflow */
489 	 bfd_elf_generic_reloc,	/* special_function */
490 	 "R_FRV_GOTTLSDESCLO",	/* name */
491 	 false,			/* partial_inplace */
492 	 0xffff,		/* src_mask */
493 	 0xffff,		/* dst_mask */
494 	 false),		/* pcrel_offset */
495 
496   /* A 12-bit signed operand with the offset from the module base
497      address to the thread-local symbol address.  */
498   HOWTO (R_FRV_TLSMOFF12,	 /* type */
499 	 0,			/* rightshift */
500 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
501 	 12,			/* bitsize */
502 	 false,			/* pc_relative */
503 	 0,			/* bitpos */
504 	 complain_overflow_signed, /* complain_on_overflow */
505 	 bfd_elf_generic_reloc,	/* special_function */
506 	 "R_FRV_TLSMOFF12",	/* name */
507 	 false,			/* partial_inplace */
508 	 0xfff,			/* src_mask */
509 	 0xfff,			/* dst_mask */
510 	 false),		/* pcrel_offset */
511 
512   /* The upper 16 bits of the offset from the module base address to
513      the thread-local symbol address.  */
514   HOWTO (R_FRV_TLSMOFFHI,	/* type */
515 	 0,			/* rightshift */
516 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
517 	 16,			/* bitsize */
518 	 false,			/* pc_relative */
519 	 0,			/* bitpos */
520 	 complain_overflow_dont, /* complain_on_overflow */
521 	 bfd_elf_generic_reloc,	/* special_function */
522 	 "R_FRV_TLSMOFFHI",	/* name */
523 	 false,			/* partial_inplace */
524 	 0xffff,		/* src_mask */
525 	 0xffff,		/* dst_mask */
526 	 false),		/* pcrel_offset */
527 
528   /* The lower 16 bits of the offset from the module base address to
529      the thread-local symbol address.  */
530   HOWTO (R_FRV_TLSMOFFLO,	/* type */
531 	 0,			/* rightshift */
532 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
533 	 16,			/* bitsize */
534 	 false,			/* pc_relative */
535 	 0,			/* bitpos */
536 	 complain_overflow_dont, /* complain_on_overflow */
537 	 bfd_elf_generic_reloc,	/* special_function */
538 	 "R_FRV_TLSMOFFLO",	/* name */
539 	 false,			/* partial_inplace */
540 	 0xffff,		/* src_mask */
541 	 0xffff,		/* dst_mask */
542 	 false),		/* pcrel_offset */
543 
544   /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
545      for a symbol.  */
546   HOWTO (R_FRV_GOTTLSOFF12,	/* type */
547 	 0,			/* rightshift */
548 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
549 	 12,			/* bitsize */
550 	 false,			/* pc_relative */
551 	 0,			/* bitpos */
552 	 complain_overflow_signed, /* complain_on_overflow */
553 	 bfd_elf_generic_reloc,	/* special_function */
554 	 "R_FRV_GOTTLSOFF12",	/* name */
555 	 false,			/* partial_inplace */
556 	 0xfff,			/* src_mask */
557 	 0xfff,			/* dst_mask */
558 	 false),		/* pcrel_offset */
559 
560   /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
561      symbol.  */
562   HOWTO (R_FRV_GOTTLSOFFHI,	/* type */
563 	 0,			/* rightshift */
564 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
565 	 16,			/* bitsize */
566 	 false,			/* pc_relative */
567 	 0,			/* bitpos */
568 	 complain_overflow_dont, /* complain_on_overflow */
569 	 bfd_elf_generic_reloc,	/* special_function */
570 	 "R_FRV_GOTTLSOFFHI",	/* name */
571 	 false,			/* partial_inplace */
572 	 0xffff,		/* src_mask */
573 	 0xffff,		/* dst_mask */
574 	 false),		/* pcrel_offset */
575 
576   /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
577      symbol.  */
578   HOWTO (R_FRV_GOTTLSOFFLO,	/* type */
579 	 0,			/* rightshift */
580 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
581 	 16,			/* bitsize */
582 	 false,			/* pc_relative */
583 	 0,			/* bitpos */
584 	 complain_overflow_dont, /* complain_on_overflow */
585 	 bfd_elf_generic_reloc,	/* special_function */
586 	 "R_FRV_GOTTLSOFFLO",	/* name */
587 	 false,			/* partial_inplace */
588 	 0xffff,		/* src_mask */
589 	 0xffff,		/* dst_mask */
590 	 false),		/* pcrel_offset */
591 
592   /* The 32-bit offset from the thread pointer (not the module base
593      address) to a thread-local symbol.  */
594   HOWTO (R_FRV_TLSOFF,		/* type */
595 	 0,			/* rightshift */
596 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
597 	 32,			/* bitsize */
598 	 false,			/* pc_relative */
599 	 0,			/* bitpos */
600 	 complain_overflow_dont, /* complain_on_overflow */
601 	 bfd_elf_generic_reloc,	/* special_function */
602 	 "R_FRV_TLSOFF",	/* name */
603 	 false,			/* partial_inplace */
604 	 0xffffffff,		/* src_mask */
605 	 0xffffffff,		/* dst_mask */
606 	 false),		/* pcrel_offset */
607 
608   /* An annotation for linker relaxation, that denotes the
609      symbol+addend whose TLS descriptor is referenced by the sum of
610      the two input registers of an ldd instruction.  */
611   HOWTO (R_FRV_TLSDESC_RELAX,	/* type */
612 	 0,			/* rightshift */
613 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
614 	 0,			/* bitsize */
615 	 false,			/* pc_relative */
616 	 0,			/* bitpos */
617 	 complain_overflow_dont, /* complain_on_overflow */
618 	 bfd_elf_generic_reloc,	/* special_function */
619 	 "R_FRV_TLSDESC_RELAX",	/* name */
620 	 false,			/* partial_inplace */
621 	 0,			/* src_mask */
622 	 0,			/* dst_mask */
623 	 false),		/* pcrel_offset */
624 
625   /* An annotation for linker relaxation, that denotes the
626      symbol+addend whose TLS resolver entry point is given by the sum
627      of the two register operands of an calll instruction.  */
628   HOWTO (R_FRV_GETTLSOFF_RELAX,	/* type */
629 	 0,			/* rightshift */
630 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
631 	 0,			/* bitsize */
632 	 false,			/* pc_relative */
633 	 0,			/* bitpos */
634 	 complain_overflow_dont, /* complain_on_overflow */
635 	 bfd_elf_generic_reloc,	/* special_function */
636 	 "R_FRV_GETTLSOFF_RELAX", /* name */
637 	 false,			/* partial_inplace */
638 	 0,			/* src_mask */
639 	 0,			/* dst_mask */
640 	 false),		/* pcrel_offset */
641 
642   /* An annotation for linker relaxation, that denotes the
643      symbol+addend whose TLS offset GOT entry is given by the sum of
644      the two input registers of an ld instruction.  */
645   HOWTO (R_FRV_TLSOFF_RELAX,	/* type */
646 	 0,			/* rightshift */
647 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
648 	 0,			/* bitsize */
649 	 false,			/* pc_relative */
650 	 0,			/* bitpos */
651 	 complain_overflow_bitfield, /* complain_on_overflow */
652 	 bfd_elf_generic_reloc,	/* special_function */
653 	 "R_FRV_TLSOFF_RELAX",	/* name */
654 	 false,			/* partial_inplace */
655 	 0,			/* src_mask */
656 	 0,			/* dst_mask */
657 	 false),		/* pcrel_offset */
658 
659   /* A 32-bit offset from the module base address to
660      the thread-local symbol address.  */
661   HOWTO (R_FRV_TLSMOFF,		/* type */
662 	 0,			/* rightshift */
663 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
664 	 32,			/* bitsize */
665 	 false,			/* pc_relative */
666 	 0,			/* bitpos */
667 	 complain_overflow_dont, /* complain_on_overflow */
668 	 bfd_elf_generic_reloc,	/* special_function */
669 	 "R_FRV_TLSMOFF",	/* name */
670 	 false,			/* partial_inplace */
671 	 0xffffffff,		/* src_mask */
672 	 0xffffffff,		/* dst_mask */
673 	 false),		/* pcrel_offset */
674 };
675 
676 /* GNU extension to record C++ vtable hierarchy.  */
677 static reloc_howto_type elf32_frv_vtinherit_howto =
678   HOWTO (R_FRV_GNU_VTINHERIT,	/* type */
679 	 0,			/* rightshift */
680 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
681 	 0,			/* bitsize */
682 	 false,			/* pc_relative */
683 	 0,			/* bitpos */
684 	 complain_overflow_dont, /* complain_on_overflow */
685 	 NULL,			/* special_function */
686 	 "R_FRV_GNU_VTINHERIT", /* name */
687 	 false,			/* partial_inplace */
688 	 0,			/* src_mask */
689 	 0,			/* dst_mask */
690 	 false);		/* pcrel_offset */
691 
692   /* GNU extension to record C++ vtable member usage.  */
693 static reloc_howto_type elf32_frv_vtentry_howto =
694   HOWTO (R_FRV_GNU_VTENTRY,	/* type */
695 	 0,			/* rightshift */
696 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
697 	 0,			/* bitsize */
698 	 false,			/* pc_relative */
699 	 0,			/* bitpos */
700 	 complain_overflow_dont, /* complain_on_overflow */
701 	 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
702 	 "R_FRV_GNU_VTENTRY",	/* name */
703 	 false,			/* partial_inplace */
704 	 0,			/* src_mask */
705 	 0,			/* dst_mask */
706 	 false);		/* pcrel_offset */
707 
708 /* The following 3 relocations are REL.  The only difference to the
709    entries in the table above are that partial_inplace is true.  */
710 static reloc_howto_type elf32_frv_rel_32_howto =
711   HOWTO (R_FRV_32,		/* type */
712 	 0,			/* rightshift */
713 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
714 	 32,			/* bitsize */
715 	 false,			/* pc_relative */
716 	 0,			/* bitpos */
717 	 complain_overflow_bitfield, /* complain_on_overflow */
718 	 bfd_elf_generic_reloc,	/* special_function */
719 	 "R_FRV_32",		/* name */
720 	 true,			/* partial_inplace */
721 	 0xffffffff,		/* src_mask */
722 	 0xffffffff,		/* dst_mask */
723 	 false);		/* pcrel_offset */
724 
725 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
726   HOWTO (R_FRV_FUNCDESC,	/* type */
727 	 0,			/* rightshift */
728 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
729 	 32,			/* bitsize */
730 	 false,			/* pc_relative */
731 	 0,			/* bitpos */
732 	 complain_overflow_bitfield, /* complain_on_overflow */
733 	 bfd_elf_generic_reloc,	/* special_function */
734 	 "R_FRV_FUNCDESC",	/* name */
735 	 true,			/* partial_inplace */
736 	 0xffffffff,		/* src_mask */
737 	 0xffffffff,		/* dst_mask */
738 	 false);		/* pcrel_offset */
739 
740 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
741   HOWTO (R_FRV_FUNCDESC_VALUE,	/* type */
742 	 0,			/* rightshift */
743 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
744 	 64,			/* bitsize */
745 	 false,			/* pc_relative */
746 	 0,			/* bitpos */
747 	 complain_overflow_bitfield, /* complain_on_overflow */
748 	 bfd_elf_generic_reloc,	/* special_function */
749 	 "R_FRV_FUNCDESC_VALUE", /* name */
750 	 true,			/* partial_inplace */
751 	 0xffffffff,		/* src_mask */
752 	 0xffffffff,		/* dst_mask */
753 	 false);		/* pcrel_offset */
754 
755 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
756   /* A 64-bit TLS descriptor for a symbol.  The first word resolves to
757      an entry point, and the second resolves to a special argument.
758      If the symbol turns out to be in static TLS, the entry point is a
759      return instruction, and the special argument is the TLS offset
760      for the symbol.  If it's in dynamic TLS, the entry point is a TLS
761      offset resolver, and the special argument is a pointer to a data
762      structure allocated by the dynamic loader, containing the GOT
763      address for the offset resolver, the module id, the offset within
764      the module, and anything else the TLS offset resolver might need
765      to determine the TLS offset for the symbol in the running
766      thread.  */
767   HOWTO (R_FRV_TLSDESC_VALUE,	/* type */
768 	 0,			/* rightshift */
769 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
770 	 64,			/* bitsize */
771 	 false,			/* pc_relative */
772 	 0,			/* bitpos */
773 	 complain_overflow_bitfield, /* complain_on_overflow */
774 	 bfd_elf_generic_reloc,	/* special_function */
775 	 "R_FRV_TLSDESC_VALUE", /* name */
776 	 true,			/* partial_inplace */
777 	 0xffffffff,		/* src_mask */
778 	 0xffffffff,		/* dst_mask */
779 	 false);		/* pcrel_offset */
780 
781 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
782   /* The 32-bit offset from the thread pointer (not the module base
783      address) to a thread-local symbol.  */
784   HOWTO (R_FRV_TLSOFF,		/* type */
785 	 0,			/* rightshift */
786 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
787 	 32,			/* bitsize */
788 	 false,			/* pc_relative */
789 	 0,			/* bitpos */
790 	 complain_overflow_bitfield, /* complain_on_overflow */
791 	 bfd_elf_generic_reloc,	/* special_function */
792 	 "R_FRV_TLSOFF",	/* name */
793 	 true,			/* partial_inplace */
794 	 0xffffffff,		/* src_mask */
795 	 0xffffffff,		/* dst_mask */
796 	 false);		/* pcrel_offset */
797 
798 
799 
800 extern const bfd_target frv_elf32_fdpic_vec;
801 #define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
802 
803 /* An extension of the elf hash table data structure, containing some
804    additional FRV-specific data.  */
805 struct frvfdpic_elf_link_hash_table
806 {
807   struct elf_link_hash_table elf;
808 
809   /* A pointer to the .rofixup section.  */
810   asection *sgotfixup;
811   /* GOT base offset.  */
812   bfd_vma got0;
813   /* Location of the first non-lazy PLT entry, i.e., the number of
814      bytes taken by lazy PLT entries.  If locally-bound TLS
815      descriptors require a ret instruction, it will be placed at this
816      offset.  */
817   bfd_vma plt0;
818   /* A hash table holding information about which symbols were
819      referenced with which PIC-related relocations.  */
820   struct htab *relocs_info;
821   /* Summary reloc information collected by
822      _frvfdpic_count_got_plt_entries.  */
823   struct _frvfdpic_dynamic_got_info *g;
824 };
825 
826 /* Get the FRV ELF linker hash table from a link_info structure.  */
827 
828 #define frvfdpic_hash_table(p) \
829   ((is_elf_hash_table ((p)->hash)					\
830     && elf_hash_table_id (elf_hash_table (p)) == FRV_ELF_DATA)		\
831    ? (struct frvfdpic_elf_link_hash_table *) (p)->hash : NULL)
832 
833 #define frvfdpic_got_section(info) \
834   (frvfdpic_hash_table (info)->elf.sgot)
835 #define frvfdpic_gotrel_section(info) \
836   (frvfdpic_hash_table (info)->elf.srelgot)
837 #define frvfdpic_gotfixup_section(info) \
838   (frvfdpic_hash_table (info)->sgotfixup)
839 #define frvfdpic_plt_section(info) \
840   (frvfdpic_hash_table (info)->elf.splt)
841 #define frvfdpic_pltrel_section(info) \
842   (frvfdpic_hash_table (info)->elf.srelplt)
843 #define frvfdpic_relocs_info(info) \
844   (frvfdpic_hash_table (info)->relocs_info)
845 #define frvfdpic_got_initial_offset(info) \
846   (frvfdpic_hash_table (info)->got0)
847 #define frvfdpic_plt_initial_offset(info) \
848   (frvfdpic_hash_table (info)->plt0)
849 #define frvfdpic_dynamic_got_plt_info(info) \
850   (frvfdpic_hash_table (info)->g)
851 
852 /* Currently it's the same, but if some day we have a reason to change
853    it, we'd better be using a different macro.
854 
855    FIXME: if there's any TLS PLT entry that uses local-exec or
856    initial-exec models, we could use the ret at the end of any of them
857    instead of adding one more.  */
858 #define frvfdpic_plt_tls_ret_offset(info) \
859   (frvfdpic_plt_initial_offset (info))
860 
861 /* The name of the dynamic interpreter.  This is put in the .interp
862    section.  */
863 
864 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
865 
866 #define DEFAULT_STACK_SIZE 0x20000
867 
868 /* This structure is used to collect the number of entries present in
869    each addressable range of the got.  */
870 struct _frvfdpic_dynamic_got_info
871 {
872   /* Several bits of information about the current link.  */
873   struct bfd_link_info *info;
874   /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
875      ranges.  */
876   bfd_vma got12, gotlos, gothilo;
877   /* Total GOT size needed for function descriptor entries within the 12-,
878      16- or 32-bit ranges.  */
879   bfd_vma fd12, fdlos, fdhilo;
880   /* Total GOT size needed by function descriptor entries referenced
881      in PLT entries, that would be profitable to place in offsets
882      close to the PIC register.  */
883   bfd_vma fdplt;
884   /* Total PLT size needed by lazy PLT entries.  */
885   bfd_vma lzplt;
886   /* Total GOT size needed for TLS descriptor entries within the 12-,
887      16- or 32-bit ranges.  */
888   bfd_vma tlsd12, tlsdlos, tlsdhilo;
889   /* Total GOT size needed by TLS descriptors referenced in PLT
890      entries, that would be profitable to place in offers close to the
891      PIC register.  */
892   bfd_vma tlsdplt;
893   /* Total PLT size needed by TLS lazy PLT entries.  */
894   bfd_vma tlslzplt;
895   /* Number of relocations carried over from input object files.  */
896   unsigned long relocs;
897   /* Number of fixups introduced by relocations in input object files.  */
898   unsigned long fixups;
899   /* The number of fixups that reference the ret instruction added to
900      the PLT for locally-resolved TLS descriptors.  */
901   unsigned long tls_ret_refs;
902 };
903 
904 /* This structure is used to assign offsets to got entries, function
905    descriptors, plt entries and lazy plt entries.  */
906 
907 struct _frvfdpic_dynamic_got_plt_info
908 {
909   /* Summary information collected with _frvfdpic_count_got_plt_entries.  */
910   struct _frvfdpic_dynamic_got_info g;
911 
912   /* For each addressable range, we record a MAX (positive) and MIN
913      (negative) value.  CUR is used to assign got entries, and it's
914      incremented from an initial positive value to MAX, then from MIN
915      to FDCUR (unless FDCUR wraps around first).  FDCUR is used to
916      assign function descriptors, and it's decreased from an initial
917      non-positive value to MIN, then from MAX down to CUR (unless CUR
918      wraps around first).  All of MIN, MAX, CUR and FDCUR always point
919      to even words.  ODD, if non-zero, indicates an odd word to be
920      used for the next got entry, otherwise CUR is used and
921      incremented by a pair of words, wrapping around when it reaches
922      MAX.  FDCUR is decremented (and wrapped) before the next function
923      descriptor is chosen.  FDPLT indicates the number of remaining
924      slots that can be used for function descriptors used only by PLT
925      entries.
926 
927      TMAX, TMIN and TCUR are used to assign TLS descriptors.  TCUR
928      starts as MAX, and grows up to TMAX, then wraps around to TMIN
929      and grows up to MIN.  TLSDPLT indicates the number of remaining
930      slots that can be used for TLS descriptors used only by TLS PLT
931      entries.  */
932   struct _frvfdpic_dynamic_got_alloc_data
933   {
934     bfd_signed_vma max, cur, odd, fdcur, min;
935     bfd_signed_vma tmax, tcur, tmin;
936     bfd_vma fdplt, tlsdplt;
937   } got12, gotlos, gothilo;
938 };
939 
940 /* Create an FRV ELF linker hash table.  */
941 
942 static struct bfd_link_hash_table *
frvfdpic_elf_link_hash_table_create(bfd * abfd)943 frvfdpic_elf_link_hash_table_create (bfd *abfd)
944 {
945   struct frvfdpic_elf_link_hash_table *ret;
946   size_t amt = sizeof (struct frvfdpic_elf_link_hash_table);
947 
948   ret = bfd_zmalloc (amt);
949   if (ret == NULL)
950     return NULL;
951 
952   if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
953 				      _bfd_elf_link_hash_newfunc,
954 				      sizeof (struct elf_link_hash_entry),
955 				      FRV_ELF_DATA))
956     {
957       free (ret);
958       return NULL;
959     }
960 
961   return &ret->elf.root;
962 }
963 
964 /* Decide whether a reference to a symbol can be resolved locally or
965    not.  If the symbol is protected, we want the local address, but
966    its function descriptor must be assigned by the dynamic linker.  */
967 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
968   (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
969    || ! elf_hash_table (INFO)->dynamic_sections_created)
970 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
971   ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
972 
973 /* This structure collects information on what kind of GOT, PLT or
974    function descriptors are required by relocations that reference a
975    certain symbol.  */
976 struct frvfdpic_relocs_info
977 {
978   /* The index of the symbol, as stored in the relocation r_info, if
979      we have a local symbol; -1 otherwise.  */
980   long symndx;
981   union
982   {
983     /* The input bfd in which the symbol is defined, if it's a local
984        symbol.  */
985     bfd *abfd;
986     /* If symndx == -1, the hash table entry corresponding to a global
987        symbol (even if it turns out to bind locally, in which case it
988        should ideally be replaced with section's symndx + addend).  */
989     struct elf_link_hash_entry *h;
990   } d;
991   /* The addend of the relocation that references the symbol.  */
992   bfd_vma addend;
993 
994   /* The fields above are used to identify an entry.  The fields below
995      contain information on how an entry is used and, later on, which
996      locations it was assigned.  */
997   /* The following 3 fields record whether the symbol+addend above was
998      ever referenced with a GOT relocation.  The 12 suffix indicates a
999      GOT12 relocation; los is used for GOTLO relocations that are not
1000      matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1001      pairs.  */
1002   unsigned got12:1;
1003   unsigned gotlos:1;
1004   unsigned gothilo:1;
1005   /* Whether a FUNCDESC relocation references symbol+addend.  */
1006   unsigned fd:1;
1007   /* Whether a FUNCDESC_GOT relocation references symbol+addend.  */
1008   unsigned fdgot12:1;
1009   unsigned fdgotlos:1;
1010   unsigned fdgothilo:1;
1011   /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend.  */
1012   unsigned fdgoff12:1;
1013   unsigned fdgofflos:1;
1014   unsigned fdgoffhilo:1;
1015   /* Whether a GETTLSOFF relocation references symbol+addend.  */
1016   unsigned tlsplt:1;
1017   /* FIXME: we should probably add tlspltdesc, tlspltoff and
1018      tlspltimm, to tell what kind of TLS PLT entry we're generating.
1019      We might instead just pre-compute flags telling whether the
1020      object is suitable for local exec, initial exec or general
1021      dynamic addressing, and use that all over the place.  We could
1022      also try to do a better job of merging TLSOFF and TLSDESC entries
1023      in main executables, but perhaps we can get rid of TLSDESC
1024      entirely in them instead.  */
1025   /* Whether a GOTTLSDESC relocation references symbol+addend.  */
1026   unsigned tlsdesc12:1;
1027   unsigned tlsdesclos:1;
1028   unsigned tlsdeschilo:1;
1029   /* Whether a GOTTLSOFF relocation references symbol+addend.  */
1030   unsigned tlsoff12:1;
1031   unsigned tlsofflos:1;
1032   unsigned tlsoffhilo:1;
1033   /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1034      GOTOFFHI relocations.  The addend doesn't really matter, since we
1035      envision that this will only be used to check whether the symbol
1036      is mapped to the same segment as the got.  */
1037   unsigned gotoff:1;
1038   /* Whether symbol+addend is referenced by a LABEL24 relocation.  */
1039   unsigned call:1;
1040   /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1041      relocation.  */
1042   unsigned sym:1;
1043   /* Whether we need a PLT entry for a symbol.  Should be implied by
1044      something like:
1045      (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h))  */
1046   unsigned plt:1;
1047   /* Whether a function descriptor should be created in this link unit
1048      for symbol+addend.  Should be implied by something like:
1049      (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1050       || ((fd || fdgot12 || fdgotlos || fdgothilo)
1051 	  && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h))))  */
1052   unsigned privfd:1;
1053   /* Whether a lazy PLT entry is needed for this symbol+addend.
1054      Should be implied by something like:
1055      (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1056       && ! (info->flags & DF_BIND_NOW))  */
1057   unsigned lazyplt:1;
1058   /* Whether we've already emitted GOT relocations and PLT entries as
1059      needed for this symbol.  */
1060   unsigned done:1;
1061 
1062   /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1063      R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1064      symbol+addend.  */
1065   unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1066 
1067   /* The number of .rofixups entries and dynamic relocations allocated
1068      for this symbol, minus any that might have already been used.  */
1069   unsigned fixups, dynrelocs;
1070 
1071   /* The offsets of the GOT entries assigned to symbol+addend, to the
1072      function descriptor's address, and to a function descriptor,
1073      respectively.  Should be zero if unassigned.  The offsets are
1074      counted from the value that will be assigned to the PIC register,
1075      not from the beginning of the .got section.  */
1076   bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1077   /* The offsets of the PLT entries assigned to symbol+addend,
1078      non-lazy and lazy, respectively.  If unassigned, should be
1079      (bfd_vma)-1.  */
1080   bfd_vma plt_entry, lzplt_entry;
1081   /* The offsets of the GOT entries for TLS offset and TLS descriptor.  */
1082   bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1083   /* The offset of the TLS offset PLT entry.  */
1084   bfd_vma tlsplt_entry;
1085 };
1086 
1087 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry.  */
1088 static hashval_t
frvfdpic_relocs_info_hash(const void * entry_)1089 frvfdpic_relocs_info_hash (const void *entry_)
1090 {
1091   const struct frvfdpic_relocs_info *entry = entry_;
1092 
1093   return (entry->symndx == -1
1094 	  ? (long) entry->d.h->root.root.hash
1095 	  : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1096 }
1097 
1098 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1099    identical.  */
1100 static int
frvfdpic_relocs_info_eq(const void * entry1,const void * entry2)1101 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1102 {
1103   const struct frvfdpic_relocs_info *e1 = entry1;
1104   const struct frvfdpic_relocs_info *e2 = entry2;
1105 
1106   return e1->symndx == e2->symndx && e1->addend == e2->addend
1107     && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1108 }
1109 
1110 /* Find or create an entry in a hash table HT that matches the key
1111    fields of the given ENTRY.  If it's not found, memory for a new
1112    entry is allocated in ABFD's obstack.  */
1113 static struct frvfdpic_relocs_info *
frvfdpic_relocs_info_find(struct htab * ht,bfd * abfd,const struct frvfdpic_relocs_info * entry,enum insert_option insert)1114 frvfdpic_relocs_info_find (struct htab *ht,
1115 			   bfd *abfd,
1116 			   const struct frvfdpic_relocs_info *entry,
1117 			   enum insert_option insert)
1118 {
1119   struct frvfdpic_relocs_info **loc =
1120     (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1121 
1122   if (! loc)
1123     return NULL;
1124 
1125   if (*loc)
1126     return *loc;
1127 
1128   *loc = bfd_zalloc (abfd, sizeof (**loc));
1129 
1130   if (! *loc)
1131     return *loc;
1132 
1133   (*loc)->symndx = entry->symndx;
1134   (*loc)->d = entry->d;
1135   (*loc)->addend = entry->addend;
1136   (*loc)->plt_entry = (bfd_vma)-1;
1137   (*loc)->lzplt_entry = (bfd_vma)-1;
1138   (*loc)->tlsplt_entry = (bfd_vma)-1;
1139 
1140   return *loc;
1141 }
1142 
1143 /* Obtain the address of the entry in HT associated with H's symbol +
1144    addend, creating a new entry if none existed.  ABFD is only used
1145    for memory allocation purposes.  */
1146 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)1147 frvfdpic_relocs_info_for_global (struct htab *ht,
1148 				 bfd *abfd,
1149 				 struct elf_link_hash_entry *h,
1150 				 bfd_vma addend,
1151 				 enum insert_option insert)
1152 {
1153   struct frvfdpic_relocs_info entry;
1154 
1155   entry.symndx = -1;
1156   entry.d.h = h;
1157   entry.addend = addend;
1158 
1159   return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1160 }
1161 
1162 /* Obtain the address of the entry in HT associated with the SYMNDXth
1163    local symbol of the input bfd ABFD, plus the addend, creating a new
1164    entry if none existed.  */
1165 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)1166 frvfdpic_relocs_info_for_local (struct htab *ht,
1167 				bfd *abfd,
1168 				long symndx,
1169 				bfd_vma addend,
1170 				enum insert_option insert)
1171 {
1172   struct frvfdpic_relocs_info entry;
1173 
1174   entry.symndx = symndx;
1175   entry.d.abfd = abfd;
1176   entry.addend = addend;
1177 
1178   return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1179 }
1180 
1181 /* Merge fields set by check_relocs() of two entries that end up being
1182    mapped to the same (presumably global) symbol.  */
1183 
1184 inline static void
frvfdpic_pic_merge_early_relocs_info(struct frvfdpic_relocs_info * e2,struct frvfdpic_relocs_info const * e1)1185 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1186 				      struct frvfdpic_relocs_info const *e1)
1187 {
1188   e2->got12 |= e1->got12;
1189   e2->gotlos |= e1->gotlos;
1190   e2->gothilo |= e1->gothilo;
1191   e2->fd |= e1->fd;
1192   e2->fdgot12 |= e1->fdgot12;
1193   e2->fdgotlos |= e1->fdgotlos;
1194   e2->fdgothilo |= e1->fdgothilo;
1195   e2->fdgoff12 |= e1->fdgoff12;
1196   e2->fdgofflos |= e1->fdgofflos;
1197   e2->fdgoffhilo |= e1->fdgoffhilo;
1198   e2->tlsplt |= e1->tlsplt;
1199   e2->tlsdesc12 |= e1->tlsdesc12;
1200   e2->tlsdesclos |= e1->tlsdesclos;
1201   e2->tlsdeschilo |= e1->tlsdeschilo;
1202   e2->tlsoff12 |= e1->tlsoff12;
1203   e2->tlsofflos |= e1->tlsofflos;
1204   e2->tlsoffhilo |= e1->tlsoffhilo;
1205   e2->gotoff |= e1->gotoff;
1206   e2->call |= e1->call;
1207   e2->sym |= e1->sym;
1208 }
1209 
1210 /* Every block of 65535 lazy PLT entries shares a single call to the
1211    resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1212    32767, counting from 0).  All other lazy PLT entries branch to it
1213    in a single instruction.  */
1214 
1215 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1216 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1217 
1218 /* Add a dynamic relocation to the SRELOC section.  */
1219 
1220 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)1221 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1222 			 int reloc_type, long dynindx, bfd_vma addend,
1223 			 struct frvfdpic_relocs_info *entry)
1224 {
1225   Elf_Internal_Rela outrel;
1226   bfd_vma reloc_offset;
1227 
1228   outrel.r_offset = offset;
1229   outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1230   outrel.r_addend = addend;
1231 
1232   reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1233   BFD_ASSERT (reloc_offset < sreloc->size);
1234   bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1235 			    sreloc->contents + reloc_offset);
1236   sreloc->reloc_count++;
1237 
1238   /* If the entry's index is zero, this relocation was probably to a
1239      linkonce section that got discarded.  We reserved a dynamic
1240      relocation, but it was for another entry than the one we got at
1241      the time of emitting the relocation.  Unfortunately there's no
1242      simple way for us to catch this situation, since the relocation
1243      is cleared right before calling relocate_section, at which point
1244      we no longer know what the relocation used to point to.  */
1245   if (entry->symndx)
1246     {
1247       BFD_ASSERT (entry->dynrelocs > 0);
1248       entry->dynrelocs--;
1249     }
1250 
1251   return reloc_offset;
1252 }
1253 
1254 /* Add a fixup to the ROFIXUP section.  */
1255 
1256 static bfd_vma
_frvfdpic_add_rofixup(bfd * output_bfd,asection * rofixup,bfd_vma offset,struct frvfdpic_relocs_info * entry)1257 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1258 		       struct frvfdpic_relocs_info *entry)
1259 {
1260   bfd_vma fixup_offset;
1261 
1262   if (rofixup->flags & SEC_EXCLUDE)
1263     return -1;
1264 
1265   fixup_offset = rofixup->reloc_count * 4;
1266   if (rofixup->contents)
1267     {
1268       BFD_ASSERT (fixup_offset < rofixup->size);
1269       bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1270     }
1271   rofixup->reloc_count++;
1272 
1273   if (entry && entry->symndx)
1274     {
1275       /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1276 	 above.  */
1277       BFD_ASSERT (entry->fixups > 0);
1278       entry->fixups--;
1279     }
1280 
1281   return fixup_offset;
1282 }
1283 
1284 /* Find the segment number in which OSEC, and output section, is
1285    located.  */
1286 
1287 static unsigned
_frvfdpic_osec_to_segment(bfd * output_bfd,asection * osec)1288 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1289 {
1290   Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1291 
1292   return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1293 }
1294 
1295 inline static bool
_frvfdpic_osec_readonly_p(bfd * output_bfd,asection * osec)1296 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1297 {
1298   unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1299 
1300   return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1301 }
1302 
1303 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1304 
1305 /* Return the base VMA address which should be subtracted from real addresses
1306    when resolving TLSMOFF relocation.
1307    This is PT_TLS segment p_vaddr, plus the 2048-16 bias.  */
1308 
1309 static bfd_vma
tls_biased_base(struct bfd_link_info * info)1310 tls_biased_base (struct bfd_link_info *info)
1311 {
1312   /* If tls_sec is NULL, we should have signalled an error already.  */
1313   if (elf_hash_table (info)->tls_sec == NULL)
1314     return FRVFDPIC_TLS_BIAS;
1315   return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1316 }
1317 
1318 /* Generate relocations for GOT entries, function descriptors, and
1319    code for PLT and lazy PLT entries.  */
1320 
1321 inline static bool
_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)1322 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1323 				       bfd *output_bfd,
1324 				       struct bfd_link_info *info,
1325 				       asection *sec,
1326 				       Elf_Internal_Sym *sym,
1327 				       bfd_vma addend)
1328 
1329 {
1330   bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1331   int dynindx = -1;
1332 
1333   if (entry->done)
1334     return true;
1335   entry->done = 1;
1336 
1337   if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1338       || entry->tlsoff_entry || entry->tlsdesc_entry)
1339     {
1340       /* If the symbol is dynamic, consider it for dynamic
1341 	 relocations, otherwise decay to section + offset.  */
1342       if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1343 	dynindx = entry->d.h->dynindx;
1344       else
1345 	{
1346 	  if (sec
1347 	      && sec->output_section
1348 	      && ! bfd_is_abs_section (sec->output_section)
1349 	      && ! bfd_is_und_section (sec->output_section))
1350 	    dynindx = elf_section_data (sec->output_section)->dynindx;
1351 	  else
1352 	    dynindx = 0;
1353 	}
1354     }
1355 
1356   /* Generate relocation for GOT entry pointing to the symbol.  */
1357   if (entry->got_entry)
1358     {
1359       int idx = dynindx;
1360       bfd_vma ad = addend;
1361 
1362       /* If the symbol is dynamic but binds locally, use
1363 	 section+offset.  */
1364       if (sec && (entry->symndx != -1
1365 		  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1366 	{
1367 	  if (entry->symndx == -1)
1368 	    ad += entry->d.h->root.u.def.value;
1369 	  else
1370 	    ad += sym->st_value;
1371 	  ad += sec->output_offset;
1372 	  if (sec->output_section && elf_section_data (sec->output_section))
1373 	    idx = elf_section_data (sec->output_section)->dynindx;
1374 	  else
1375 	    idx = 0;
1376 	}
1377 
1378       /* If we're linking an executable at a fixed address, we can
1379 	 omit the dynamic relocation as long as the symbol is local to
1380 	 this module.  */
1381       if (bfd_link_pde (info)
1382 	  && (entry->symndx != -1
1383 	      || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1384 	{
1385 	  if (sec)
1386 	    ad += sec->output_section->vma;
1387 	  if (entry->symndx != -1
1388 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
1389 	    _frvfdpic_add_rofixup (output_bfd,
1390 				   frvfdpic_gotfixup_section (info),
1391 				   frvfdpic_got_section (info)->output_section
1392 				   ->vma
1393 				   + frvfdpic_got_section (info)->output_offset
1394 				   + frvfdpic_got_initial_offset (info)
1395 				   + entry->got_entry, entry);
1396 	}
1397       else
1398 	_frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1399 				 _bfd_elf_section_offset
1400 				 (output_bfd, info,
1401 				  frvfdpic_got_section (info),
1402 				  frvfdpic_got_initial_offset (info)
1403 				  + entry->got_entry)
1404 				 + frvfdpic_got_section (info)
1405 				 ->output_section->vma
1406 				 + frvfdpic_got_section (info)->output_offset,
1407 				 R_FRV_32, idx, ad, entry);
1408 
1409       bfd_put_32 (output_bfd, ad,
1410 		  frvfdpic_got_section (info)->contents
1411 		  + frvfdpic_got_initial_offset (info)
1412 		  + entry->got_entry);
1413     }
1414 
1415   /* Generate relocation for GOT entry pointing to a canonical
1416      function descriptor.  */
1417   if (entry->fdgot_entry)
1418     {
1419       int reloc, idx;
1420       bfd_vma ad = 0;
1421 
1422       if (! (entry->symndx == -1
1423 	     && entry->d.h->root.type == bfd_link_hash_undefweak
1424 	     && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1425 	{
1426 	  /* If the symbol is dynamic and there may be dynamic symbol
1427 	     resolution because we are, or are linked with, a shared
1428 	     library, emit a FUNCDESC relocation such that the dynamic
1429 	     linker will allocate the function descriptor.  If the
1430 	     symbol needs a non-local function descriptor but binds
1431 	     locally (e.g., its visibility is protected, emit a
1432 	     dynamic relocation decayed to section+offset.  */
1433 	  if (entry->symndx == -1
1434 	      && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1435 	      && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1436 	      && !bfd_link_pde (info))
1437 	    {
1438 	      reloc = R_FRV_FUNCDESC;
1439 	      idx = elf_section_data (entry->d.h->root.u.def.section
1440 				      ->output_section)->dynindx;
1441 	      ad = entry->d.h->root.u.def.section->output_offset
1442 		+ entry->d.h->root.u.def.value;
1443 	    }
1444 	  else if (entry->symndx == -1
1445 		   && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1446 	    {
1447 	      reloc = R_FRV_FUNCDESC;
1448 	      idx = dynindx;
1449 	      ad = addend;
1450 	      if (ad)
1451 		{
1452 		  (*info->callbacks->reloc_dangerous)
1453 		    (info, _("relocation requires zero addend"),
1454 		     elf_hash_table (info)->dynobj,
1455 		     frvfdpic_got_section (info),
1456 		     entry->fdgot_entry);
1457 		  return false;
1458 		}
1459 	    }
1460 	  else
1461 	    {
1462 	      /* Otherwise, we know we have a private function descriptor,
1463 		 so reference it directly.  */
1464 	      if (elf_hash_table (info)->dynamic_sections_created)
1465 		BFD_ASSERT (entry->privfd);
1466 	      reloc = R_FRV_32;
1467 	      idx = elf_section_data (frvfdpic_got_section (info)
1468 				      ->output_section)->dynindx;
1469 	      ad = frvfdpic_got_section (info)->output_offset
1470 		+ frvfdpic_got_initial_offset (info) + entry->fd_entry;
1471 	    }
1472 
1473 	  /* If there is room for dynamic symbol resolution, emit the
1474 	     dynamic relocation.  However, if we're linking an
1475 	     executable at a fixed location, we won't have emitted a
1476 	     dynamic symbol entry for the got section, so idx will be
1477 	     zero, which means we can and should compute the address
1478 	     of the private descriptor ourselves.  */
1479 	  if (bfd_link_pde (info)
1480 	      && (entry->symndx != -1
1481 		  || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1482 	    {
1483 	      ad += frvfdpic_got_section (info)->output_section->vma;
1484 	      _frvfdpic_add_rofixup (output_bfd,
1485 				     frvfdpic_gotfixup_section (info),
1486 				     frvfdpic_got_section (info)
1487 				     ->output_section->vma
1488 				     + frvfdpic_got_section (info)
1489 				     ->output_offset
1490 				     + frvfdpic_got_initial_offset (info)
1491 				     + entry->fdgot_entry, entry);
1492 	    }
1493 	  else
1494 	    _frvfdpic_add_dyn_reloc (output_bfd,
1495 				     frvfdpic_gotrel_section (info),
1496 				     _bfd_elf_section_offset
1497 				     (output_bfd, info,
1498 				      frvfdpic_got_section (info),
1499 				      frvfdpic_got_initial_offset (info)
1500 				      + entry->fdgot_entry)
1501 				     + frvfdpic_got_section (info)
1502 				     ->output_section->vma
1503 				     + frvfdpic_got_section (info)
1504 				     ->output_offset,
1505 				     reloc, idx, ad, entry);
1506 	}
1507 
1508       bfd_put_32 (output_bfd, ad,
1509 		  frvfdpic_got_section (info)->contents
1510 		  + frvfdpic_got_initial_offset (info)
1511 		  + entry->fdgot_entry);
1512     }
1513 
1514   /* Generate relocation to fill in a private function descriptor in
1515      the GOT.  */
1516   if (entry->fd_entry)
1517     {
1518       int idx = dynindx;
1519       bfd_vma ad = addend;
1520       bfd_vma ofst;
1521       long lowword, highword;
1522 
1523       /* If the symbol is dynamic but binds locally, use
1524 	 section+offset.  */
1525       if (sec && (entry->symndx != -1
1526 		  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1527 	{
1528 	  if (entry->symndx == -1)
1529 	    ad += entry->d.h->root.u.def.value;
1530 	  else
1531 	    ad += sym->st_value;
1532 	  ad += sec->output_offset;
1533 	  if (sec->output_section && elf_section_data (sec->output_section))
1534 	    idx = elf_section_data (sec->output_section)->dynindx;
1535 	  else
1536 	    idx = 0;
1537 	}
1538 
1539       /* If we're linking an executable at a fixed address, we can
1540 	 omit the dynamic relocation as long as the symbol is local to
1541 	 this module.  */
1542       if (bfd_link_pde (info)
1543 	  && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1544 	{
1545 	  if (sec)
1546 	    ad += sec->output_section->vma;
1547 	  ofst = 0;
1548 	  if (entry->symndx != -1
1549 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
1550 	    {
1551 	      _frvfdpic_add_rofixup (output_bfd,
1552 				     frvfdpic_gotfixup_section (info),
1553 				     frvfdpic_got_section (info)
1554 				     ->output_section->vma
1555 				     + frvfdpic_got_section (info)
1556 				     ->output_offset
1557 				     + frvfdpic_got_initial_offset (info)
1558 				     + entry->fd_entry, entry);
1559 	      _frvfdpic_add_rofixup (output_bfd,
1560 				     frvfdpic_gotfixup_section (info),
1561 				     frvfdpic_got_section (info)
1562 				     ->output_section->vma
1563 				     + frvfdpic_got_section (info)
1564 				     ->output_offset
1565 				     + frvfdpic_got_initial_offset (info)
1566 				     + entry->fd_entry + 4, entry);
1567 	    }
1568 	}
1569       else
1570 	{
1571 	  ofst =
1572 	    _frvfdpic_add_dyn_reloc (output_bfd,
1573 				     entry->lazyplt
1574 				     ? frvfdpic_pltrel_section (info)
1575 				     : frvfdpic_gotrel_section (info),
1576 				     _bfd_elf_section_offset
1577 				     (output_bfd, info,
1578 				      frvfdpic_got_section (info),
1579 				      frvfdpic_got_initial_offset (info)
1580 				      + entry->fd_entry)
1581 				     + frvfdpic_got_section (info)
1582 				     ->output_section->vma
1583 				     + frvfdpic_got_section (info)
1584 				     ->output_offset,
1585 				     R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1586 	}
1587 
1588       /* If we've omitted the dynamic relocation, just emit the fixed
1589 	 addresses of the symbol and of the local GOT base offset.  */
1590       if (bfd_link_pde (info)
1591 	  && sec
1592 	  && sec->output_section)
1593 	{
1594 	  lowword = ad;
1595 	  highword = frvfdpic_got_section (info)->output_section->vma
1596 	    + frvfdpic_got_section (info)->output_offset
1597 	    + frvfdpic_got_initial_offset (info);
1598 	}
1599       else if (entry->lazyplt)
1600 	{
1601 	  if (ad)
1602 	    {
1603 	      (*info->callbacks->reloc_dangerous)
1604 		(info, _("relocation requires zero addend"),
1605 		 elf_hash_table (info)->dynobj,
1606 		 frvfdpic_got_section (info),
1607 		 entry->fd_entry);
1608 	      return false;
1609 	    }
1610 
1611 	  fd_lazy_rel_offset = ofst;
1612 
1613 	  /* A function descriptor used for lazy or local resolving is
1614 	     initialized such that its high word contains the output
1615 	     section index in which the PLT entries are located, and
1616 	     the low word contains the address of the lazy PLT entry
1617 	     entry point, that must be within the memory region
1618 	     assigned to that section.  */
1619 	  lowword = entry->lzplt_entry + 4
1620 	    + frvfdpic_plt_section (info)->output_offset
1621 	    + frvfdpic_plt_section (info)->output_section->vma;
1622 	  highword = _frvfdpic_osec_to_segment
1623 	    (output_bfd, frvfdpic_plt_section (info)->output_section);
1624 	}
1625       else
1626 	{
1627 	  /* A function descriptor for a local function gets the index
1628 	     of the section.  For a non-local function, it's
1629 	     disregarded.  */
1630 	  lowword = ad;
1631 	  if (sec == NULL
1632 	      || (entry->symndx == -1 && entry->d.h->dynindx != -1
1633 		  && entry->d.h->dynindx == idx))
1634 	    highword = 0;
1635 	  else
1636 	    highword = _frvfdpic_osec_to_segment
1637 	      (output_bfd, sec->output_section);
1638 	}
1639 
1640       bfd_put_32 (output_bfd, lowword,
1641 		  frvfdpic_got_section (info)->contents
1642 		  + frvfdpic_got_initial_offset (info)
1643 		  + entry->fd_entry);
1644       bfd_put_32 (output_bfd, highword,
1645 		  frvfdpic_got_section (info)->contents
1646 		  + frvfdpic_got_initial_offset (info)
1647 		  + entry->fd_entry + 4);
1648     }
1649 
1650   /* Generate code for the PLT entry.  */
1651   if (entry->plt_entry != (bfd_vma) -1)
1652     {
1653       bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1654 	+ entry->plt_entry;
1655 
1656       BFD_ASSERT (entry->fd_entry);
1657 
1658       /* Figure out what kind of PLT entry we need, depending on the
1659 	 location of the function descriptor within the GOT.  */
1660       if (entry->fd_entry >= -(1 << (12 - 1))
1661 	  && entry->fd_entry < (1 << (12 - 1)))
1662 	{
1663 	  /* lddi @(gr15, fd_entry), gr14 */
1664 	  bfd_put_32 (output_bfd,
1665 		      0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1666 		      plt_code);
1667 	  plt_code += 4;
1668 	}
1669       else
1670 	{
1671 	  if (entry->fd_entry >= -(1 << (16 - 1))
1672 	      && entry->fd_entry < (1 << (16 - 1)))
1673 	    {
1674 	      /* setlos lo(fd_entry), gr14 */
1675 	      bfd_put_32 (output_bfd,
1676 			  0x9cfc0000
1677 			  | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1678 			  plt_code);
1679 	      plt_code += 4;
1680 	    }
1681 	  else
1682 	    {
1683 	      /* sethi.p hi(fd_entry), gr14
1684 		 setlo lo(fd_entry), gr14 */
1685 	      bfd_put_32 (output_bfd,
1686 			  0x1cf80000
1687 			  | ((entry->fd_entry >> 16)
1688 			     & (((bfd_vma)1 << 16) - 1)),
1689 			  plt_code);
1690 	      plt_code += 4;
1691 	      bfd_put_32 (output_bfd,
1692 			  0x9cf40000
1693 			  | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1694 			  plt_code);
1695 	      plt_code += 4;
1696 	    }
1697 	  /* ldd @(gr14,gr15),gr14 */
1698 	  bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1699 	  plt_code += 4;
1700 	}
1701       /* jmpl @(gr14,gr0) */
1702       bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1703     }
1704 
1705   /* Generate code for the lazy PLT entry.  */
1706   if (entry->lzplt_entry != (bfd_vma) -1)
1707     {
1708       bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1709 	+ entry->lzplt_entry;
1710       bfd_vma resolverStub_addr;
1711 
1712       bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1713       lzplt_code += 4;
1714 
1715       resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1716 	* FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1717       if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1718 	resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1719 
1720       if (entry->lzplt_entry == resolverStub_addr)
1721 	{
1722 	  /* This is a lazy PLT entry that includes a resolver call.  */
1723 	  /* ldd @(gr15,gr0), gr4
1724 	     jmpl @(gr4,gr0)  */
1725 	  bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1726 	  bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1727 	}
1728       else
1729 	{
1730 	  /* bra  resolverStub */
1731 	  bfd_put_32 (output_bfd,
1732 		      0xc01a0000
1733 		      | (((resolverStub_addr - entry->lzplt_entry)
1734 			  / 4) & (((bfd_vma)1 << 16) - 1)),
1735 		      lzplt_code);
1736 	}
1737     }
1738 
1739   /* Generate relocation for GOT entry holding the TLS offset.  */
1740   if (entry->tlsoff_entry)
1741     {
1742       int idx = dynindx;
1743       bfd_vma ad = addend;
1744 
1745       if (entry->symndx != -1
1746 	  || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1747 	{
1748 	  /* If the symbol is dynamic but binds locally, use
1749 	     section+offset.  */
1750 	  if (sec)
1751 	    {
1752 	      if (entry->symndx == -1)
1753 		ad += entry->d.h->root.u.def.value;
1754 	      else
1755 		ad += sym->st_value;
1756 	      ad += sec->output_offset;
1757 	      if (sec->output_section
1758 		  && elf_section_data (sec->output_section))
1759 		idx = elf_section_data (sec->output_section)->dynindx;
1760 	      else
1761 		idx = 0;
1762 	    }
1763 	}
1764 
1765       /* *ABS*+addend is special for TLS relocations, use only the
1766 	 addend.  */
1767       if (bfd_link_executable (info)
1768 	  && idx == 0
1769 	  && (bfd_is_abs_section (sec)
1770 	      || bfd_is_und_section (sec)))
1771 	;
1772       /* If we're linking an executable, we can entirely omit the
1773 	 dynamic relocation if the symbol is local to this module.  */
1774       else if (bfd_link_executable (info)
1775 	       && (entry->symndx != -1
1776 		   || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1777 	{
1778 	  if (sec)
1779 	    ad += sec->output_section->vma - tls_biased_base (info);
1780 	}
1781       else
1782 	{
1783 	  if (idx == 0
1784 	      && (bfd_is_abs_section (sec)
1785 		  || bfd_is_und_section (sec)))
1786 	    {
1787 	      if (! elf_hash_table (info)->tls_sec)
1788 		{
1789 		  (*info->callbacks->undefined_symbol)
1790 		    (info, "TLS section", elf_hash_table (info)->dynobj,
1791 		     frvfdpic_got_section (info), entry->tlsoff_entry, true);
1792 		  return false;
1793 		}
1794 	      idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1795 	      ad += FRVFDPIC_TLS_BIAS;
1796 	    }
1797 	  _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1798 				   _bfd_elf_section_offset
1799 				   (output_bfd, info,
1800 				    frvfdpic_got_section (info),
1801 				    frvfdpic_got_initial_offset (info)
1802 				    + entry->tlsoff_entry)
1803 				   + frvfdpic_got_section (info)
1804 				   ->output_section->vma
1805 				   + frvfdpic_got_section (info)
1806 				   ->output_offset,
1807 				   R_FRV_TLSOFF, idx, ad, entry);
1808 	}
1809 
1810       bfd_put_32 (output_bfd, ad,
1811 		  frvfdpic_got_section (info)->contents
1812 		  + frvfdpic_got_initial_offset (info)
1813 		  + entry->tlsoff_entry);
1814     }
1815 
1816   if (entry->tlsdesc_entry)
1817     {
1818       int idx = dynindx;
1819       bfd_vma ad = addend;
1820 
1821       /* If the symbol is dynamic but binds locally, use
1822 	 section+offset.  */
1823       if (sec && (entry->symndx != -1
1824 		  || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1825 	{
1826 	  if (entry->symndx == -1)
1827 	    ad += entry->d.h->root.u.def.value;
1828 	  else
1829 	    ad += sym->st_value;
1830 	  ad += sec->output_offset;
1831 	  if (sec->output_section && elf_section_data (sec->output_section))
1832 	    idx = elf_section_data (sec->output_section)->dynindx;
1833 	  else
1834 	    idx = 0;
1835 	}
1836 
1837       /* If we didn't set up a TLS offset entry, but we're linking an
1838 	 executable and the symbol binds locally, we can use the
1839 	 module offset in the TLS descriptor in relaxations.  */
1840       if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1841 	entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1842 
1843       if (bfd_link_pde (info)
1844 	  && ((idx == 0
1845 	       && (bfd_is_abs_section (sec)
1846 		   || bfd_is_und_section (sec)))
1847 	      || entry->symndx != -1
1848 	      || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1849 	{
1850 	  /* *ABS*+addend is special for TLS relocations, use only the
1851 	     addend for the TLS offset, and take the module id as
1852 	     0.  */
1853 	  if (idx == 0
1854 	      && (bfd_is_abs_section (sec)
1855 		  || bfd_is_und_section (sec)))
1856 	    ;
1857 	  /* For other TLS symbols that bind locally, add the section
1858 	     TLS offset to the addend.  */
1859 	  else if (sec)
1860 	    ad += sec->output_section->vma - tls_biased_base (info);
1861 
1862 	  bfd_put_32 (output_bfd,
1863 		      frvfdpic_plt_section (info)->output_section->vma
1864 		      + frvfdpic_plt_section (info)->output_offset
1865 		      + frvfdpic_plt_tls_ret_offset (info),
1866 		      frvfdpic_got_section (info)->contents
1867 		      + frvfdpic_got_initial_offset (info)
1868 		      + entry->tlsdesc_entry);
1869 
1870 	  _frvfdpic_add_rofixup (output_bfd,
1871 				 frvfdpic_gotfixup_section (info),
1872 				 frvfdpic_got_section (info)
1873 				 ->output_section->vma
1874 				 + frvfdpic_got_section (info)
1875 				 ->output_offset
1876 				 + frvfdpic_got_initial_offset (info)
1877 				 + entry->tlsdesc_entry, entry);
1878 
1879 	  BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1880 
1881 	  /* We've used one of the reserved fixups, so discount it so
1882 	     that we can check at the end that we've used them
1883 	     all.  */
1884 	  frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1885 
1886 	  /* While at that, make sure the ret instruction makes to the
1887 	     right location in the PLT.  We could do it only when we
1888 	     got to 0, but since the check at the end will only print
1889 	     a warning, make sure we have the ret in place in case the
1890 	     warning is missed.  */
1891 	  bfd_put_32 (output_bfd, 0xc03a4000,
1892 		      frvfdpic_plt_section (info)->contents
1893 		      + frvfdpic_plt_tls_ret_offset (info));
1894 	}
1895       else
1896 	{
1897 	  if (idx == 0
1898 	      && (bfd_is_abs_section (sec)
1899 		  || bfd_is_und_section (sec)))
1900 	    {
1901 	      if (! elf_hash_table (info)->tls_sec)
1902 		{
1903 		  (*info->callbacks->undefined_symbol)
1904 		    (info, "TLS section", elf_hash_table (info)->dynobj,
1905 		     frvfdpic_got_section (info), entry->tlsdesc_entry, true);
1906 		  return false;
1907 		}
1908 	      idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1909 	      ad += FRVFDPIC_TLS_BIAS;
1910 	    }
1911 
1912 	  _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1913 				   _bfd_elf_section_offset
1914 				   (output_bfd, info,
1915 				    frvfdpic_got_section (info),
1916 				    frvfdpic_got_initial_offset (info)
1917 				    + entry->tlsdesc_entry)
1918 				   + frvfdpic_got_section (info)
1919 				   ->output_section->vma
1920 				   + frvfdpic_got_section (info)
1921 				   ->output_offset,
1922 				   R_FRV_TLSDESC_VALUE, idx, ad, entry);
1923 
1924 	  bfd_put_32 (output_bfd, 0,
1925 		      frvfdpic_got_section (info)->contents
1926 		      + frvfdpic_got_initial_offset (info)
1927 		      + entry->tlsdesc_entry);
1928 	}
1929 
1930       bfd_put_32 (output_bfd, ad,
1931 		  frvfdpic_got_section (info)->contents
1932 		  + frvfdpic_got_initial_offset (info)
1933 		  + entry->tlsdesc_entry + 4);
1934     }
1935 
1936   /* Generate code for the get-TLS-offset PLT entry.  */
1937   if (entry->tlsplt_entry != (bfd_vma) -1)
1938     {
1939       bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1940 	+ entry->tlsplt_entry;
1941 
1942       if (bfd_link_executable (info)
1943 	  && (entry->symndx != -1
1944 	      || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1945 	{
1946 	  int idx = dynindx;
1947 	  bfd_vma ad = addend;
1948 
1949 	  /* sec may be NULL when referencing an undefweak symbol
1950 	     while linking a static executable.  */
1951 	  if (!sec)
1952 	    {
1953 	      BFD_ASSERT (entry->symndx == -1
1954 			  && entry->d.h->root.type == bfd_link_hash_undefweak);
1955 	    }
1956 	  else
1957 	    {
1958 	      if (entry->symndx == -1)
1959 		ad += entry->d.h->root.u.def.value;
1960 	      else
1961 		ad += sym->st_value;
1962 	      ad += sec->output_offset;
1963 	      if (sec->output_section
1964 		  && elf_section_data (sec->output_section))
1965 		idx = elf_section_data (sec->output_section)->dynindx;
1966 	      else
1967 		idx = 0;
1968 	    }
1969 
1970 	  /* *ABS*+addend is special for TLS relocations, use only the
1971 	     addend for the TLS offset, and take the module id as
1972 	     0.  */
1973 	  if (idx == 0
1974 	      && (bfd_is_abs_section (sec)
1975 		  || bfd_is_und_section (sec)))
1976 	    ;
1977 	  /* For other TLS symbols that bind locally, add the section
1978 	     TLS offset to the addend.  */
1979 	  else if (sec)
1980 	    ad += sec->output_section->vma - tls_biased_base (info);
1981 
1982 	  if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1983 	      && (bfd_signed_vma)ad < (1 << (16 - 1)))
1984 	    {
1985 	      /* setlos lo(ad), gr9 */
1986 	      bfd_put_32 (output_bfd,
1987 			  0x92fc0000
1988 			  | (ad
1989 			     & (((bfd_vma)1 << 16) - 1)),
1990 			  plt_code);
1991 	      plt_code += 4;
1992 	    }
1993 	  else
1994 	    {
1995 	      /* sethi.p hi(ad), gr9
1996 		 setlo lo(ad), gr9 */
1997 	      bfd_put_32 (output_bfd,
1998 			  0x12f80000
1999 			  | ((ad >> 16)
2000 			     & (((bfd_vma)1 << 16) - 1)),
2001 			  plt_code);
2002 	      plt_code += 4;
2003 	      bfd_put_32 (output_bfd,
2004 			  0x92f40000
2005 			  | (ad
2006 			     & (((bfd_vma)1 << 16) - 1)),
2007 			  plt_code);
2008 	      plt_code += 4;
2009 	    }
2010 	  /* ret */
2011 	  bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2012 	}
2013       else if (entry->tlsoff_entry)
2014 	{
2015 	  /* Figure out what kind of PLT entry we need, depending on the
2016 	     location of the TLS descriptor within the GOT.  */
2017 	  if (entry->tlsoff_entry >= -(1 << (12 - 1))
2018 	      && entry->tlsoff_entry < (1 << (12 - 1)))
2019 	    {
2020 	      /* ldi @(gr15, tlsoff_entry), gr9 */
2021 	      bfd_put_32 (output_bfd,
2022 			  0x92c8f000 | (entry->tlsoff_entry
2023 					& ((1 << 12) - 1)),
2024 			  plt_code);
2025 	      plt_code += 4;
2026 	    }
2027 	  else
2028 	    {
2029 	      if (entry->tlsoff_entry >= -(1 << (16 - 1))
2030 		  && entry->tlsoff_entry < (1 << (16 - 1)))
2031 		{
2032 		  /* setlos lo(tlsoff_entry), gr8 */
2033 		  bfd_put_32 (output_bfd,
2034 			      0x90fc0000
2035 			      | (entry->tlsoff_entry
2036 				 & (((bfd_vma)1 << 16) - 1)),
2037 			      plt_code);
2038 		  plt_code += 4;
2039 		}
2040 	      else
2041 		{
2042 		  /* sethi.p hi(tlsoff_entry), gr8
2043 		     setlo lo(tlsoff_entry), gr8 */
2044 		  bfd_put_32 (output_bfd,
2045 			      0x10f80000
2046 			      | ((entry->tlsoff_entry >> 16)
2047 				 & (((bfd_vma)1 << 16) - 1)),
2048 			      plt_code);
2049 		  plt_code += 4;
2050 		  bfd_put_32 (output_bfd,
2051 			      0x90f40000
2052 			      | (entry->tlsoff_entry
2053 				 & (((bfd_vma)1 << 16) - 1)),
2054 			      plt_code);
2055 		  plt_code += 4;
2056 		}
2057 	      /* ld @(gr15,gr8),gr9 */
2058 	      bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2059 	      plt_code += 4;
2060 	    }
2061 	  /* ret */
2062 	  bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2063 	}
2064       else
2065 	{
2066 	  BFD_ASSERT (entry->tlsdesc_entry);
2067 
2068 	  /* Figure out what kind of PLT entry we need, depending on the
2069 	     location of the TLS descriptor within the GOT.  */
2070 	  if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2071 	      && entry->tlsdesc_entry < (1 << (12 - 1)))
2072 	    {
2073 	      /* lddi @(gr15, tlsdesc_entry), gr8 */
2074 	      bfd_put_32 (output_bfd,
2075 			  0x90ccf000 | (entry->tlsdesc_entry
2076 					& ((1 << 12) - 1)),
2077 			  plt_code);
2078 	      plt_code += 4;
2079 	    }
2080 	  else
2081 	    {
2082 	      if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2083 		  && entry->tlsdesc_entry < (1 << (16 - 1)))
2084 		{
2085 		  /* setlos lo(tlsdesc_entry), gr8 */
2086 		  bfd_put_32 (output_bfd,
2087 			      0x90fc0000
2088 			      | (entry->tlsdesc_entry
2089 				 & (((bfd_vma)1 << 16) - 1)),
2090 			      plt_code);
2091 		  plt_code += 4;
2092 		}
2093 	      else
2094 		{
2095 		  /* sethi.p hi(tlsdesc_entry), gr8
2096 		     setlo lo(tlsdesc_entry), gr8 */
2097 		  bfd_put_32 (output_bfd,
2098 			      0x10f80000
2099 			      | ((entry->tlsdesc_entry >> 16)
2100 				 & (((bfd_vma)1 << 16) - 1)),
2101 			      plt_code);
2102 		  plt_code += 4;
2103 		  bfd_put_32 (output_bfd,
2104 			      0x90f40000
2105 			      | (entry->tlsdesc_entry
2106 				 & (((bfd_vma)1 << 16) - 1)),
2107 			      plt_code);
2108 		  plt_code += 4;
2109 		}
2110 	      /* ldd @(gr15,gr8),gr8 */
2111 	      bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2112 	      plt_code += 4;
2113 	    }
2114 	  /* jmpl @(gr8,gr0) */
2115 	  bfd_put_32 (output_bfd, 0x80308000, plt_code);
2116 	}
2117     }
2118 
2119   return true;
2120 }
2121 
2122 /* Handle an FRV small data reloc.  */
2123 
2124 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)2125 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2126 			    bfd *input_bfd,
2127 			    asection *input_section,
2128 			    Elf_Internal_Rela *relocation,
2129 			    bfd_byte *contents,
2130 			    bfd_vma value)
2131 {
2132   bfd_vma insn;
2133   bfd_vma gp;
2134   struct bfd_link_hash_entry *h;
2135 
2136   h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
2137 
2138   gp = (h->u.def.value
2139 	+ h->u.def.section->output_section->vma
2140 	+ h->u.def.section->output_offset);
2141 
2142   value -= input_section->output_section->vma;
2143   value -= (gp - input_section->output_section->vma);
2144 
2145   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2146 
2147   value += relocation->r_addend;
2148 
2149   if ((long) value > 0x7ff || (long) value < -0x800)
2150     return bfd_reloc_overflow;
2151 
2152   bfd_put_32 (input_bfd,
2153 	      (insn & 0xfffff000) | (value & 0xfff),
2154 	      contents + relocation->r_offset);
2155 
2156   return bfd_reloc_ok;
2157 }
2158 
2159 /* Handle an FRV small data reloc. for the u12 field.  */
2160 
2161 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)2162 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2163 			     bfd *input_bfd,
2164 			     asection *input_section,
2165 			     Elf_Internal_Rela *relocation,
2166 			     bfd_byte *contents,
2167 			     bfd_vma value)
2168 {
2169   bfd_vma insn;
2170   bfd_vma gp;
2171   struct bfd_link_hash_entry *h;
2172   bfd_vma mask;
2173 
2174   h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
2175 
2176   gp = (h->u.def.value
2177 	+ h->u.def.section->output_section->vma
2178 	+ h->u.def.section->output_offset);
2179 
2180   value -= input_section->output_section->vma;
2181   value -= (gp - input_section->output_section->vma);
2182 
2183   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2184 
2185   value += relocation->r_addend;
2186 
2187   if ((long) value > 0x7ff || (long) value < -0x800)
2188     return bfd_reloc_overflow;
2189 
2190   /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0.  */
2191   mask = 0x3f03f;
2192   insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2193 
2194   bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2195 
2196   return bfd_reloc_ok;
2197 }
2198 
2199 /* Handle an FRV ELF HI16 reloc.  */
2200 
2201 static bfd_reloc_status_type
elf32_frv_relocate_hi16(bfd * input_bfd,Elf_Internal_Rela * relhi,bfd_byte * contents,bfd_vma value)2202 elf32_frv_relocate_hi16 (bfd *input_bfd,
2203 			 Elf_Internal_Rela *relhi,
2204 			 bfd_byte *contents,
2205 			 bfd_vma value)
2206 {
2207   bfd_vma insn;
2208 
2209   insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2210 
2211   value += relhi->r_addend;
2212   value = ((value >> 16) & 0xffff);
2213 
2214   insn = (insn & 0xffff0000) | value;
2215 
2216   if ((long) value > 0xffff || (long) value < -0x10000)
2217     return bfd_reloc_overflow;
2218 
2219   bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2220   return bfd_reloc_ok;
2221 
2222 }
2223 static bfd_reloc_status_type
elf32_frv_relocate_lo16(bfd * input_bfd,Elf_Internal_Rela * rello,bfd_byte * contents,bfd_vma value)2224 elf32_frv_relocate_lo16 (bfd *input_bfd,
2225 			 Elf_Internal_Rela *rello,
2226 			 bfd_byte *contents,
2227 			 bfd_vma value)
2228 {
2229   bfd_vma insn;
2230 
2231   insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2232 
2233   value += rello->r_addend;
2234   value = value & 0xffff;
2235 
2236   insn = (insn & 0xffff0000) | value;
2237 
2238   if ((long) value > 0xffff || (long) value < -0x10000)
2239     return bfd_reloc_overflow;
2240 
2241   bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2242   return bfd_reloc_ok;
2243 }
2244 
2245 /* Perform the relocation for the CALL label24 instruction.  */
2246 
2247 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)2248 elf32_frv_relocate_label24 (bfd *input_bfd,
2249 			    asection *input_section,
2250 			    Elf_Internal_Rela *rello,
2251 			    bfd_byte *contents,
2252 			    bfd_vma value)
2253 {
2254   bfd_vma insn;
2255   bfd_vma label6;
2256   bfd_vma label18;
2257 
2258   /* The format for the call instruction is:
2259 
2260     0 000000 0001111 000000000000000000
2261       label6 opcode  label18
2262 
2263     The branch calculation is: pc + (4*label24)
2264     where label24 is the concatenation of label6 and label18.  */
2265 
2266   /* Grab the instruction.  */
2267   insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2268 
2269   value -= input_section->output_section->vma + input_section->output_offset;
2270   value -= rello->r_offset;
2271   value += rello->r_addend;
2272 
2273   value = value >> 2;
2274 
2275   label6  = value & 0xfc0000;
2276   label6  = label6 << 7;
2277 
2278   label18 = value & 0x3ffff;
2279 
2280   insn = insn & 0x803c0000;
2281   insn = insn | label6;
2282   insn = insn | label18;
2283 
2284   bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2285 
2286   return bfd_reloc_ok;
2287 }
2288 
2289 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)2290 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2291 			    bfd *input_bfd,
2292 			    asection *input_section,
2293 			    Elf_Internal_Rela *relocation,
2294 			    bfd_byte *contents,
2295 			    bfd_vma value)
2296 {
2297   bfd_vma insn;
2298   bfd_vma gp;
2299   struct bfd_link_hash_entry *h;
2300 
2301   h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
2302 
2303   gp = (h->u.def.value
2304 	+ h->u.def.section->output_section->vma
2305 	+ h->u.def.section->output_offset);
2306 
2307   value -= input_section->output_section->vma;
2308   value -= (gp - input_section->output_section->vma);
2309   value += relocation->r_addend;
2310   value = ((value >> 16) & 0xffff);
2311 
2312   if ((long) value > 0xffff || (long) value < -0x10000)
2313     return bfd_reloc_overflow;
2314 
2315   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2316   insn = (insn & 0xffff0000) | value;
2317 
2318   bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2319   return bfd_reloc_ok;
2320 }
2321 
2322 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)2323 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2324 			    bfd *input_bfd,
2325 			    asection *input_section,
2326 			    Elf_Internal_Rela *relocation,
2327 			    bfd_byte *contents,
2328 			    bfd_vma value)
2329 {
2330   bfd_vma insn;
2331   bfd_vma gp;
2332   struct bfd_link_hash_entry *h;
2333 
2334   h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true);
2335 
2336   gp = (h->u.def.value
2337 	+ h->u.def.section->output_section->vma
2338 	+ h->u.def.section->output_offset);
2339 
2340   value -= input_section->output_section->vma;
2341   value -= (gp - input_section->output_section->vma);
2342   value += relocation->r_addend;
2343   value = value & 0xffff;
2344 
2345   if ((long) value > 0xffff || (long) value < -0x10000)
2346     return bfd_reloc_overflow;
2347 
2348   insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2349   insn = (insn & 0xffff0000) | value;
2350 
2351   bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2352 
2353  return bfd_reloc_ok;
2354 }
2355 
2356 static reloc_howto_type *
frv_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)2357 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2358 		       bfd_reloc_code_real_type code)
2359 {
2360   switch (code)
2361     {
2362     default:
2363       break;
2364 
2365     case BFD_RELOC_NONE:
2366       return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2367 
2368     case BFD_RELOC_32:
2369       if (elf_elfheader (abfd)->e_type == ET_EXEC
2370 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2371 	return &elf32_frv_rel_32_howto;
2372       /* Fall through.  */
2373     case BFD_RELOC_CTOR:
2374       return &elf32_frv_howto_table[ (int) R_FRV_32];
2375 
2376     case BFD_RELOC_FRV_LABEL16:
2377       return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2378 
2379     case BFD_RELOC_FRV_LABEL24:
2380       return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2381 
2382     case BFD_RELOC_FRV_LO16:
2383       return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2384 
2385     case BFD_RELOC_FRV_HI16:
2386       return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2387 
2388     case BFD_RELOC_FRV_GPREL12:
2389       return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2390 
2391     case BFD_RELOC_FRV_GPRELU12:
2392       return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2393 
2394     case BFD_RELOC_FRV_GPREL32:
2395       return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2396 
2397     case BFD_RELOC_FRV_GPRELHI:
2398       return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2399 
2400     case BFD_RELOC_FRV_GPRELLO:
2401       return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2402 
2403     case BFD_RELOC_FRV_GOT12:
2404       return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2405 
2406     case BFD_RELOC_FRV_GOTHI:
2407       return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2408 
2409     case BFD_RELOC_FRV_GOTLO:
2410       return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2411 
2412     case BFD_RELOC_FRV_FUNCDESC:
2413       if (elf_elfheader (abfd)->e_type == ET_EXEC
2414 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2415 	return &elf32_frv_rel_funcdesc_howto;
2416       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2417 
2418     case BFD_RELOC_FRV_FUNCDESC_GOT12:
2419       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2420 
2421     case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2422       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2423 
2424     case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2425       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2426 
2427     case BFD_RELOC_FRV_FUNCDESC_VALUE:
2428       if (elf_elfheader (abfd)->e_type == ET_EXEC
2429 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2430 	return &elf32_frv_rel_funcdesc_value_howto;
2431       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2432 
2433     case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2434       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2435 
2436     case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2437       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2438 
2439     case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2440       return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2441 
2442     case BFD_RELOC_FRV_GOTOFF12:
2443       return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2444 
2445     case BFD_RELOC_FRV_GOTOFFHI:
2446       return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2447 
2448     case BFD_RELOC_FRV_GOTOFFLO:
2449       return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2450 
2451     case BFD_RELOC_FRV_GETTLSOFF:
2452       return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2453 
2454     case BFD_RELOC_FRV_TLSDESC_VALUE:
2455       if (elf_elfheader (abfd)->e_type == ET_EXEC
2456 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2457 	return &elf32_frv_rel_tlsdesc_value_howto;
2458       return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2459 
2460     case BFD_RELOC_FRV_GOTTLSDESC12:
2461       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2462 
2463     case BFD_RELOC_FRV_GOTTLSDESCHI:
2464       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2465 
2466     case BFD_RELOC_FRV_GOTTLSDESCLO:
2467       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2468 
2469     case BFD_RELOC_FRV_TLSMOFF12:
2470       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2471 
2472     case BFD_RELOC_FRV_TLSMOFFHI:
2473       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2474 
2475     case BFD_RELOC_FRV_TLSMOFFLO:
2476       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2477 
2478     case BFD_RELOC_FRV_GOTTLSOFF12:
2479       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2480 
2481     case BFD_RELOC_FRV_GOTTLSOFFHI:
2482       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2483 
2484     case BFD_RELOC_FRV_GOTTLSOFFLO:
2485       return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2486 
2487     case BFD_RELOC_FRV_TLSOFF:
2488       if (elf_elfheader (abfd)->e_type == ET_EXEC
2489 	  || elf_elfheader (abfd)->e_type == ET_DYN)
2490 	return &elf32_frv_rel_tlsoff_howto;
2491       return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2492 
2493     case BFD_RELOC_FRV_TLSDESC_RELAX:
2494       return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2495 
2496     case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2497       return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2498 
2499     case BFD_RELOC_FRV_TLSOFF_RELAX:
2500       return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2501 
2502     case BFD_RELOC_FRV_TLSMOFF:
2503       return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2504 
2505     case BFD_RELOC_VTABLE_INHERIT:
2506       return &elf32_frv_vtinherit_howto;
2507 
2508     case BFD_RELOC_VTABLE_ENTRY:
2509       return &elf32_frv_vtentry_howto;
2510     }
2511 
2512   return NULL;
2513 }
2514 
2515 static reloc_howto_type *
frv_reloc_name_lookup(bfd * abfd ATTRIBUTE_UNUSED,const char * r_name)2516 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2517 {
2518   unsigned int i;
2519 
2520   for (i = 0;
2521        i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2522        i++)
2523     if (elf32_frv_howto_table[i].name != NULL
2524 	&& strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2525       return &elf32_frv_howto_table[i];
2526 
2527   if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2528     return &elf32_frv_vtinherit_howto;
2529   if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2530     return &elf32_frv_vtentry_howto;
2531 
2532   return NULL;
2533 }
2534 
2535 /* Set the howto pointer for an FRV ELF reloc.  */
2536 
2537 static bool
frv_info_to_howto_rela(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)2538 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2539 			arelent *cache_ptr,
2540 			Elf_Internal_Rela *dst)
2541 {
2542   unsigned int r_type;
2543 
2544   r_type = ELF32_R_TYPE (dst->r_info);
2545   switch (r_type)
2546     {
2547     case R_FRV_GNU_VTINHERIT:
2548       cache_ptr->howto = &elf32_frv_vtinherit_howto;
2549       break;
2550 
2551     case R_FRV_GNU_VTENTRY:
2552       cache_ptr->howto = &elf32_frv_vtentry_howto;
2553       break;
2554 
2555     default:
2556       if (r_type >= ARRAY_SIZE (elf32_frv_howto_table))
2557 	{
2558 	  /* xgettext:c-format */
2559 	  _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2560 			      abfd, r_type);
2561 	  bfd_set_error (bfd_error_bad_value);
2562 	  return false;
2563 	}
2564       cache_ptr->howto = & elf32_frv_howto_table [r_type];
2565       break;
2566     }
2567   return true;
2568 }
2569 
2570 /* Set the howto pointer for an FRV ELF REL reloc.  */
2571 
2572 static bool
frvfdpic_info_to_howto_rel(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)2573 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2574 			    arelent *cache_ptr, Elf_Internal_Rela *dst)
2575 {
2576   unsigned int r_type;
2577 
2578   r_type = ELF32_R_TYPE (dst->r_info);
2579   switch (r_type)
2580     {
2581     case R_FRV_32:
2582       cache_ptr->howto = &elf32_frv_rel_32_howto;
2583       break;
2584 
2585     case R_FRV_FUNCDESC:
2586       cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2587       break;
2588 
2589     case R_FRV_FUNCDESC_VALUE:
2590       cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2591       break;
2592 
2593     case R_FRV_TLSDESC_VALUE:
2594       cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2595       break;
2596 
2597     case R_FRV_TLSOFF:
2598       cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2599       break;
2600 
2601     default:
2602       cache_ptr->howto = NULL;
2603       return false;
2604     }
2605   return true;
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 int
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 = NULL;
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 (sec);
2741 	}
2742       else
2743 	{
2744 	  bool warned, ignored;
2745 	  bool 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 	  /* Fall through.  */
2779 
2780 	case R_FRV_GOT12:
2781 	case R_FRV_GOTHI:
2782 	case R_FRV_GOTLO:
2783 	case R_FRV_FUNCDESC_GOT12:
2784 	case R_FRV_FUNCDESC_GOTHI:
2785 	case R_FRV_FUNCDESC_GOTLO:
2786 	case R_FRV_GOTOFF12:
2787 	case R_FRV_GOTOFFHI:
2788 	case R_FRV_GOTOFFLO:
2789 	case R_FRV_FUNCDESC_GOTOFF12:
2790 	case R_FRV_FUNCDESC_GOTOFFHI:
2791 	case R_FRV_FUNCDESC_GOTOFFLO:
2792 	case R_FRV_FUNCDESC:
2793 	case R_FRV_FUNCDESC_VALUE:
2794 	case R_FRV_GETTLSOFF:
2795 	case R_FRV_TLSDESC_VALUE:
2796 	case R_FRV_GOTTLSDESC12:
2797 	case R_FRV_GOTTLSDESCHI:
2798 	case R_FRV_GOTTLSDESCLO:
2799 	case R_FRV_TLSMOFF12:
2800 	case R_FRV_TLSMOFFHI:
2801 	case R_FRV_TLSMOFFLO:
2802 	case R_FRV_GOTTLSOFF12:
2803 	case R_FRV_GOTTLSOFFHI:
2804 	case R_FRV_GOTTLSOFFLO:
2805 	case R_FRV_TLSOFF:
2806 	case R_FRV_TLSDESC_RELAX:
2807 	case R_FRV_GETTLSOFF_RELAX:
2808 	case R_FRV_TLSOFF_RELAX:
2809 	case R_FRV_TLSMOFF:
2810 	  if ((input_section->flags & SEC_ALLOC) == 0)
2811 	    break;
2812 
2813 	  if (h != NULL)
2814 	    picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2815 						      (info), input_bfd, h,
2816 						      orig_addend, INSERT);
2817 	  else
2818 	    /* In order to find the entry we created before, we must
2819 	       use the original addend, not the one that may have been
2820 	       modified by _bfd_elf_rela_local_sym().  */
2821 	    picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2822 						     (info), input_bfd, r_symndx,
2823 						     orig_addend, INSERT);
2824 	  if (! picrel)
2825 	    return false;
2826 
2827 	  if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2828 						      osec, sym,
2829 						      rel->r_addend))
2830 	    {
2831 	      info->callbacks->einfo
2832 		/* xgettext:c-format */
2833 		(_("%H: relocation to `%s+%v'"
2834 		   " may have caused the error above\n"),
2835 		 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2836 	      return false;
2837 	    }
2838 
2839 	  break;
2840 
2841 	default:
2842 	non_fdpic:
2843 	  picrel = NULL;
2844 	  if (h
2845 	      && ! FRVFDPIC_SYM_LOCAL (info, h)
2846 	      && _bfd_elf_section_offset (output_bfd, info, input_section,
2847 					  rel->r_offset) != (bfd_vma) -1)
2848 	    {
2849 	      info->callbacks->einfo
2850 		(_("%H: relocation references symbol"
2851 		   " not defined in the module\n"),
2852 		 input_bfd, input_section, rel->r_offset);
2853 	      return false;
2854 	    }
2855 	  break;
2856 	}
2857 
2858       switch (r_type)
2859 	{
2860 	case R_FRV_GETTLSOFF:
2861 	case R_FRV_TLSDESC_VALUE:
2862 	case R_FRV_GOTTLSDESC12:
2863 	case R_FRV_GOTTLSDESCHI:
2864 	case R_FRV_GOTTLSDESCLO:
2865 	case R_FRV_TLSMOFF12:
2866 	case R_FRV_TLSMOFFHI:
2867 	case R_FRV_TLSMOFFLO:
2868 	case R_FRV_GOTTLSOFF12:
2869 	case R_FRV_GOTTLSOFFHI:
2870 	case R_FRV_GOTTLSOFFLO:
2871 	case R_FRV_TLSOFF:
2872 	case R_FRV_TLSDESC_RELAX:
2873 	case R_FRV_GETTLSOFF_RELAX:
2874 	case R_FRV_TLSOFF_RELAX:
2875 	case R_FRV_TLSMOFF:
2876 	  if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2877 	    relocation += tls_biased_base (info);
2878 	  break;
2879 
2880 	default:
2881 	  break;
2882 	}
2883 
2884       /* Try to apply TLS relaxations.  */
2885       if (1)
2886 	switch (r_type)
2887 	  {
2888 
2889 #define LOCAL_EXEC_P(info, picrel) \
2890   (bfd_link_executable (info) \
2891    && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2892 #define INITIAL_EXEC_P(info, picrel) \
2893   ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2894    && (picrel)->tlsoff_entry)
2895 
2896 #define IN_RANGE_FOR_OFST12_P(value) \
2897   ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2898 #define IN_RANGE_FOR_SETLOS_P(value) \
2899   ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2900 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2901   (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2902 
2903 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2904   (LOCAL_EXEC_P ((info), (picrel)) \
2905    && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2906 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2907   (INITIAL_EXEC_P ((info), (picrel)) \
2908    && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2909 
2910 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2911   (LOCAL_EXEC_P ((info), (picrel)))
2912 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2913   (INITIAL_EXEC_P ((info), (picrel)))
2914 
2915 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2916   (LOCAL_EXEC_P ((info), (picrel)) \
2917    && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2918 
2919 	  case R_FRV_GETTLSOFF:
2920 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2921 
2922 	    /* Is this a call instruction?  */
2923 	    if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2924 	      {
2925 		info->callbacks->einfo
2926 		  (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2927 		   input_bfd, input_section, rel->r_offset);
2928 		return false;
2929 	      }
2930 
2931 	    if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2932 					      relocation + rel->r_addend))
2933 	      {
2934 		/* Replace the call instruction (except the packing bit)
2935 		   with setlos #tlsmofflo(symbol+offset), gr9.  */
2936 		insn &= (unsigned long)0x80000000;
2937 		insn |= (unsigned long)0x12fc0000;
2938 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2939 
2940 		r_type = R_FRV_TLSMOFFLO;
2941 		howto  = elf32_frv_howto_table + r_type;
2942 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2943 	      }
2944 
2945 	    else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2946 	      {
2947 		/* Replace the call instruction (except the packing bit)
2948 		   with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9.  */
2949 		insn &= (unsigned long)0x80000000;
2950 		insn |= (unsigned long)0x12c8f000;
2951 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2952 
2953 		r_type = R_FRV_GOTTLSOFF12;
2954 		howto  = elf32_frv_howto_table + r_type;
2955 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2956 	      }
2957 
2958 	    break;
2959 
2960 	  case R_FRV_GOTTLSDESC12:
2961 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2962 
2963 	    /* Is this an lddi instruction?  */
2964 	    if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2965 	      {
2966 		info->callbacks->einfo
2967 		  (_("%H: R_FRV_GOTTLSDESC12"
2968 		     " not applied to an lddi instruction\n"),
2969 		   input_bfd, input_section, rel->r_offset);
2970 		return false;
2971 	      }
2972 
2973 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2974 					    relocation + rel->r_addend)
2975 		&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2976 						  info))
2977 	      {
2978 		/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2979 		   with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2980 		   Preserve the packing bit.  */
2981 		insn = (insn & (unsigned long)0x80000000)
2982 		  | ((insn + (unsigned long)0x02000000)
2983 		     & (unsigned long)0x7e000000);
2984 		insn |= (unsigned long)0x00fc0000;
2985 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2986 
2987 		r_type = R_FRV_TLSMOFFLO;
2988 		howto  = elf32_frv_howto_table + r_type;
2989 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2990 	      }
2991 
2992 	    else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2993 						 relocation + rel->r_addend))
2994 	      {
2995 		/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2996 		   with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2997 		   Preserve the packing bit.  */
2998 		insn = (insn & (unsigned long)0x80000000)
2999 		  | ((insn + (unsigned long)0x02000000)
3000 		     & (unsigned long)0x7e000000);
3001 		insn |= (unsigned long)0x00f80000;
3002 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3003 
3004 		r_type = R_FRV_TLSMOFFHI;
3005 		howto  = elf32_frv_howto_table + r_type;
3006 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3007 	      }
3008 
3009 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3010 	      {
3011 		/* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3012 		   with ldi @(grB, #gottlsoff12(symbol+offset),
3013 		   gr<C+1>.  Preserve the packing bit.  If gottlsoff12
3014 		   overflows, we'll error out, but that's sort-of ok,
3015 		   since we'd started with gottlsdesc12, that's actually
3016 		   more demanding.  Compiling with -fPIE instead of
3017 		   -fpie would fix it; linking with --relax should fix
3018 		   it as well.  */
3019 		insn = (insn & (unsigned long)0x80cbf000)
3020 		  | ((insn + (unsigned long)0x02000000)
3021 		     & (unsigned long)0x7e000000);
3022 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3023 
3024 		r_type = R_FRV_GOTTLSOFF12;
3025 		howto  = elf32_frv_howto_table + r_type;
3026 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3027 	      }
3028 
3029 	    break;
3030 
3031 	  case R_FRV_GOTTLSDESCHI:
3032 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3033 
3034 	    /* Is this a sethi instruction?  */
3035 	    if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3036 	      {
3037 		info->callbacks->einfo
3038 		  (_("%H: R_FRV_GOTTLSDESCHI"
3039 		     " not applied to a sethi instruction\n"),
3040 		   input_bfd, input_section, rel->r_offset);
3041 		return false;
3042 	      }
3043 
3044 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3045 					    relocation + rel->r_addend)
3046 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3047 		    && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3048 	      {
3049 		/* Replace sethi with a nop.  Preserve the packing bit.  */
3050 		insn &= (unsigned long)0x80000000;
3051 		insn |= (unsigned long)0x00880000;
3052 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3053 
3054 		/* Nothing to relocate.  */
3055 		continue;
3056 	      }
3057 
3058 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3059 	      {
3060 		/* Simply decay GOTTLSDESC to GOTTLSOFF.  */
3061 		r_type = R_FRV_GOTTLSOFFHI;
3062 		howto  = elf32_frv_howto_table + r_type;
3063 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3064 	      }
3065 
3066 	    break;
3067 
3068 	  case R_FRV_GOTTLSDESCLO:
3069 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3070 
3071 	    /* Is this a setlo or setlos instruction?  */
3072 	    if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3073 	      {
3074 		info->callbacks->einfo
3075 		  (_("%H: R_FRV_GOTTLSDESCLO"
3076 		     " not applied to a setlo or setlos instruction\n"),
3077 		   input_bfd, input_section, rel->r_offset);
3078 		return false;
3079 	      }
3080 
3081 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3082 					    relocation + rel->r_addend)
3083 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3084 		    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3085 	      {
3086 		/* Replace setlo/setlos with a nop.  Preserve the
3087 		   packing bit.  */
3088 		insn &= (unsigned long)0x80000000;
3089 		insn |= (unsigned long)0x00880000;
3090 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3091 
3092 		/* Nothing to relocate.  */
3093 		continue;
3094 	      }
3095 
3096 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3097 	      {
3098 		/* If the corresponding sethi (if it exists) decayed
3099 		   to a nop, make sure this becomes (or already is) a
3100 		   setlos, not setlo.  */
3101 		if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3102 		  {
3103 		    insn |= (unsigned long)0x00080000;
3104 		    bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3105 		  }
3106 
3107 		/* Simply decay GOTTLSDESC to GOTTLSOFF.  */
3108 		r_type = R_FRV_GOTTLSOFFLO;
3109 		howto  = elf32_frv_howto_table + r_type;
3110 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3111 	      }
3112 
3113 	    break;
3114 
3115 	  case R_FRV_TLSDESC_RELAX:
3116 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3117 
3118 	    /* Is this an ldd instruction?  */
3119 	    if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3120 	      {
3121 		info->callbacks->einfo
3122 		  (_("%H: R_FRV_TLSDESC_RELAX"
3123 		     " not applied to an ldd instruction\n"),
3124 		   input_bfd, input_section, rel->r_offset);
3125 		return false;
3126 	      }
3127 
3128 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3129 					    relocation + rel->r_addend)
3130 		&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3131 						  info))
3132 	      {
3133 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3134 		   with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3135 		   Preserve the packing bit.  */
3136 		insn = (insn & (unsigned long)0x80000000)
3137 		  | ((insn + (unsigned long)0x02000000)
3138 		     & (unsigned long)0x7e000000);
3139 		insn |= (unsigned long)0x00fc0000;
3140 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3141 
3142 		r_type = R_FRV_TLSMOFFLO;
3143 		howto  = elf32_frv_howto_table + r_type;
3144 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3145 	      }
3146 
3147 	    else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3148 						 relocation + rel->r_addend))
3149 	      {
3150 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3151 		   with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3152 		   Preserve the packing bit.  */
3153 		insn = (insn & (unsigned long)0x80000000)
3154 		  | ((insn + (unsigned long)0x02000000)
3155 		     & (unsigned long)0x7e000000);
3156 		insn |= (unsigned long)0x00f80000;
3157 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3158 
3159 		r_type = R_FRV_TLSMOFFHI;
3160 		howto  = elf32_frv_howto_table + r_type;
3161 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3162 	      }
3163 
3164 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3165 		     && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3166 	      {
3167 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3168 		   with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3169 		   Preserve the packing bit.  */
3170 		insn = (insn & (unsigned long)0x8003f000)
3171 		  | (unsigned long)0x00c80000
3172 		  | ((insn + (unsigned long)0x02000000)
3173 		     & (unsigned long)0x7e000000);
3174 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3175 
3176 		r_type = R_FRV_GOTTLSOFF12;
3177 		howto  = elf32_frv_howto_table + r_type;
3178 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3179 	      }
3180 
3181 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3182 	      {
3183 		/* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3184 		   with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3185 		   Preserve the packing bit.  */
3186 		insn = (insn & (unsigned long)0x81ffffbf)
3187 		  | ((insn + (unsigned long)0x02000000)
3188 		     & (unsigned long)0x7e000000);
3189 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3190 
3191 		/* #tlsoff(symbol+offset) is just a relaxation
3192 		    annotation, so there's nothing left to
3193 		    relocate.  */
3194 		continue;
3195 	      }
3196 
3197 	    break;
3198 
3199 	  case R_FRV_GETTLSOFF_RELAX:
3200 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3201 
3202 	    /* Is this a calll or callil instruction?  */
3203 	    if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3204 	      {
3205 		info->callbacks->einfo
3206 		  (_("%H: R_FRV_GETTLSOFF_RELAX"
3207 		     " not applied to a calll instruction\n"),
3208 		   input_bfd, input_section, rel->r_offset);
3209 		return false;
3210 	      }
3211 
3212 	    if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3213 					    relocation + rel->r_addend)
3214 		&& TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3215 						  info))
3216 	      {
3217 		/* Replace calll with a nop.  Preserve the packing bit.  */
3218 		insn &= (unsigned long)0x80000000;
3219 		insn |= (unsigned long)0x00880000;
3220 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3221 
3222 		/* Nothing to relocate.  */
3223 		continue;
3224 	      }
3225 
3226 	    else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3227 						 relocation + rel->r_addend))
3228 	      {
3229 		/* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3230 		   Preserve the packing bit.  */
3231 		insn &= (unsigned long)0x80000000;
3232 		insn |= (unsigned long)0x12f40000;
3233 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3234 
3235 		r_type = R_FRV_TLSMOFFLO;
3236 		howto  = elf32_frv_howto_table + r_type;
3237 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3238 	      }
3239 
3240 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3241 	      {
3242 		/* Replace calll with a nop.  Preserve the packing bit.  */
3243 		insn &= (unsigned long)0x80000000;
3244 		insn |= (unsigned long)0x00880000;
3245 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3246 
3247 		/* Nothing to relocate.  */
3248 		continue;
3249 	      }
3250 
3251 	    break;
3252 
3253 	  case R_FRV_GOTTLSOFF12:
3254 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3255 
3256 	    /* Is this an ldi instruction?  */
3257 	    if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3258 	      {
3259 		info->callbacks->einfo
3260 		  (_("%H: R_FRV_GOTTLSOFF12"
3261 		     " not applied to an ldi instruction\n"),
3262 		   input_bfd, input_section, rel->r_offset);
3263 		return false;
3264 	      }
3265 
3266 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3267 					      relocation + rel->r_addend))
3268 	      {
3269 		/* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3270 		   with setlos #tlsmofflo(symbol+offset), grC.
3271 		   Preserve the packing bit.  */
3272 		insn &= (unsigned long)0xfe000000;
3273 		insn |= (unsigned long)0x00fc0000;
3274 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3275 
3276 		r_type = R_FRV_TLSMOFFLO;
3277 		howto  = elf32_frv_howto_table + r_type;
3278 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3279 	      }
3280 
3281 	    break;
3282 
3283 	  case R_FRV_GOTTLSOFFHI:
3284 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3285 
3286 	    /* Is this a sethi instruction?  */
3287 	    if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3288 	      {
3289 		info->callbacks->einfo
3290 		  (_("%H: R_FRV_GOTTLSOFFHI"
3291 		     " not applied to a sethi instruction\n"),
3292 		   input_bfd, input_section, rel->r_offset);
3293 		return false;
3294 	      }
3295 
3296 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3297 					      relocation + rel->r_addend)
3298 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3299 		    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3300 	      {
3301 		/* Replace sethi with a nop.  Preserve the packing bit.  */
3302 		insn &= (unsigned long)0x80000000;
3303 		insn |= (unsigned long)0x00880000;
3304 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3305 
3306 		/* Nothing to relocate.  */
3307 		continue;
3308 	      }
3309 
3310 	    break;
3311 
3312 	  case R_FRV_GOTTLSOFFLO:
3313 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3314 
3315 	    /* Is this a setlo or setlos instruction?  */
3316 	    if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3317 	      {
3318 		info->callbacks->einfo
3319 		  (_("%H: R_FRV_GOTTLSOFFLO"
3320 		     " not applied to a setlo or setlos instruction\n"),
3321 		   input_bfd, input_section, rel->r_offset);
3322 		return false;
3323 	      }
3324 
3325 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3326 					      relocation + rel->r_addend)
3327 		|| (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3328 		    && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3329 	      {
3330 		/* Replace setlo/setlos with a nop.  Preserve the
3331 		   packing bit.  */
3332 		insn &= (unsigned long)0x80000000;
3333 		insn |= (unsigned long)0x00880000;
3334 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3335 
3336 		/* Nothing to relocate.  */
3337 		continue;
3338 	      }
3339 
3340 	    break;
3341 
3342 	  case R_FRV_TLSOFF_RELAX:
3343 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3344 
3345 	    /* Is this an ld instruction?  */
3346 	    if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3347 	      {
3348 		info->callbacks->einfo
3349 		  (_("%H: R_FRV_TLSOFF_RELAX"
3350 		     " not applied to an ld instruction\n"),
3351 		   input_bfd, input_section, rel->r_offset);
3352 		return false;
3353 	      }
3354 
3355 	    if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3356 					      relocation + rel->r_addend))
3357 	      {
3358 		/* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3359 		   with setlos #tlsmofflo(symbol+offset), grC.
3360 		   Preserve the packing bit.  */
3361 		insn &= (unsigned long)0xfe000000;
3362 		insn |= (unsigned long)0x00fc0000;
3363 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3364 
3365 		r_type = R_FRV_TLSMOFFLO;
3366 		howto  = elf32_frv_howto_table + r_type;
3367 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3368 	      }
3369 
3370 	    else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3371 		     && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3372 	      {
3373 		/* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3374 		   with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3375 		   Preserve the packing bit.  */
3376 		insn = (insn & (unsigned long)0xfe03f000)
3377 		  | (unsigned long)0x00c80000;
3378 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3379 
3380 		r_type = R_FRV_GOTTLSOFF12;
3381 		howto  = elf32_frv_howto_table + r_type;
3382 		rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3383 	      }
3384 
3385 	    break;
3386 
3387 	  case R_FRV_TLSMOFFHI:
3388 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3389 
3390 	    /* Is this a sethi instruction?  */
3391 	    if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3392 	      {
3393 		info->callbacks->einfo
3394 		  (_("%H: R_FRV_TLSMOFFHI"
3395 		     " not applied to a sethi instruction\n"),
3396 		   input_bfd, input_section, rel->r_offset);
3397 		return false;
3398 	      }
3399 
3400 	    if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3401 					       info))
3402 	      {
3403 		/* Replace sethi with a nop.  Preserve the packing bit.  */
3404 		insn &= (unsigned long)0x80000000;
3405 		insn |= (unsigned long)0x00880000;
3406 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3407 
3408 		/* Nothing to relocate.  */
3409 		continue;
3410 	      }
3411 
3412 	    break;
3413 
3414 	  case R_FRV_TLSMOFFLO:
3415 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3416 
3417 	    /* Is this a setlo or setlos instruction?  */
3418 	    if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3419 	      {
3420 		info->callbacks->einfo
3421 		  (_("R_FRV_TLSMOFFLO"
3422 		     " not applied to a setlo or setlos instruction\n"),
3423 		   input_bfd, input_section, rel->r_offset);
3424 		return false;
3425 	      }
3426 
3427 	    if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3428 					       info))
3429 	      /* If the corresponding sethi (if it exists) decayed
3430 		 to a nop, make sure this becomes (or already is) a
3431 		 setlos, not setlo.  */
3432 	      {
3433 		insn |= (unsigned long)0x00080000;
3434 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3435 	      }
3436 
3437 	    break;
3438 
3439 	    /*
3440 	      There's nothing to relax in these:
3441 		R_FRV_TLSDESC_VALUE
3442 		R_FRV_TLSOFF
3443 		R_FRV_TLSMOFF12
3444 		R_FRV_TLSMOFFHI
3445 		R_FRV_TLSMOFFLO
3446 		R_FRV_TLSMOFF
3447 	    */
3448 
3449 	  default:
3450 	    break;
3451 	  }
3452 
3453       switch (r_type)
3454 	{
3455 	case R_FRV_LABEL24:
3456 	  check_segment[0] = isec_segment;
3457 	  if (! IS_FDPIC (output_bfd))
3458 	    check_segment[1] = isec_segment;
3459 	  else if (picrel->plt)
3460 	    {
3461 	      relocation = frvfdpic_plt_section (info)->output_section->vma
3462 		+ frvfdpic_plt_section (info)->output_offset
3463 		+ picrel->plt_entry;
3464 	      check_segment[1] = plt_segment;
3465 	    }
3466 	  /* We don't want to warn on calls to undefined weak symbols,
3467 	     as calls to them must be protected by non-NULL tests
3468 	     anyway, and unprotected calls would invoke undefined
3469 	     behavior.  */
3470 	  else if (picrel->symndx == -1
3471 		   && picrel->d.h->root.type == bfd_link_hash_undefweak)
3472 	    check_segment[1] = check_segment[0];
3473 	  else
3474 	    check_segment[1] = sec
3475 	      ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3476 	      : (unsigned)-1;
3477 	  break;
3478 
3479 	case R_FRV_GOT12:
3480 	case R_FRV_GOTHI:
3481 	case R_FRV_GOTLO:
3482 	  relocation = picrel->got_entry;
3483 	  check_segment[0] = check_segment[1] = got_segment;
3484 	  break;
3485 
3486 	case R_FRV_FUNCDESC_GOT12:
3487 	case R_FRV_FUNCDESC_GOTHI:
3488 	case R_FRV_FUNCDESC_GOTLO:
3489 	  relocation = picrel->fdgot_entry;
3490 	  check_segment[0] = check_segment[1] = got_segment;
3491 	  break;
3492 
3493 	case R_FRV_GOTOFFHI:
3494 	case R_FRV_GOTOFF12:
3495 	case R_FRV_GOTOFFLO:
3496 	  relocation -= frvfdpic_got_section (info)->output_section->vma
3497 	    + frvfdpic_got_section (info)->output_offset
3498 	    + frvfdpic_got_initial_offset (info);
3499 	  check_segment[0] = got_segment;
3500 	  check_segment[1] = sec
3501 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3502 	    : (unsigned)-1;
3503 	  break;
3504 
3505 	case R_FRV_FUNCDESC_GOTOFF12:
3506 	case R_FRV_FUNCDESC_GOTOFFHI:
3507 	case R_FRV_FUNCDESC_GOTOFFLO:
3508 	  relocation = picrel->fd_entry;
3509 	  check_segment[0] = check_segment[1] = got_segment;
3510 	  break;
3511 
3512 	case R_FRV_FUNCDESC:
3513 	  {
3514 	    int dynindx;
3515 	    bfd_vma addend = rel->r_addend;
3516 
3517 	    if (! (h && h->root.type == bfd_link_hash_undefweak
3518 		   && FRVFDPIC_SYM_LOCAL (info, h)))
3519 	      {
3520 		/* If the symbol is dynamic and there may be dynamic
3521 		   symbol resolution because we are or are linked with a
3522 		   shared library, emit a FUNCDESC relocation such that
3523 		   the dynamic linker will allocate the function
3524 		   descriptor.  If the symbol needs a non-local function
3525 		   descriptor but binds locally (e.g., its visibility is
3526 		   protected, emit a dynamic relocation decayed to
3527 		   section+offset.  */
3528 		if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3529 		    && FRVFDPIC_SYM_LOCAL (info, h)
3530 		    && !bfd_link_pde (info))
3531 		  {
3532 		    dynindx = elf_section_data (h->root.u.def.section
3533 						->output_section)->dynindx;
3534 		    addend += h->root.u.def.section->output_offset
3535 		      + h->root.u.def.value;
3536 		  }
3537 		else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3538 		  {
3539 		    if (addend)
3540 		      {
3541 			info->callbacks->einfo
3542 			  (_("%H: %s references dynamic symbol"
3543 			     " with nonzero addend\n"),
3544 			   input_bfd, input_section, rel->r_offset,
3545 			   "R_FRV_FUNCDESC");
3546 			return false;
3547 		      }
3548 		    dynindx = h->dynindx;
3549 		  }
3550 		else
3551 		  {
3552 		    /* Otherwise, we know we have a private function
3553 		       descriptor, so reference it directly.  */
3554 		    BFD_ASSERT (picrel->privfd);
3555 		    r_type = R_FRV_32;
3556 		    dynindx = elf_section_data (frvfdpic_got_section (info)
3557 						->output_section)->dynindx;
3558 		    addend = frvfdpic_got_section (info)->output_offset
3559 		      + frvfdpic_got_initial_offset (info)
3560 		      + picrel->fd_entry;
3561 		  }
3562 
3563 		/* If there is room for dynamic symbol resolution, emit
3564 		   the dynamic relocation.  However, if we're linking an
3565 		   executable at a fixed location, we won't have emitted a
3566 		   dynamic symbol entry for the got section, so idx will
3567 		   be zero, which means we can and should compute the
3568 		   address of the private descriptor ourselves.  */
3569 		if (bfd_link_pde (info)
3570 		    && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3571 		  {
3572 		    addend += frvfdpic_got_section (info)->output_section->vma;
3573 		    if ((bfd_section_flags (input_section->output_section)
3574 			 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3575 		      {
3576 			bfd_vma offset;
3577 
3578 			if (_frvfdpic_osec_readonly_p (output_bfd,
3579 						       input_section
3580 						       ->output_section))
3581 			  {
3582 			    info->callbacks->einfo
3583 			      (_("%H: cannot emit fixups"
3584 				 " in read-only section\n"),
3585 			       input_bfd, input_section, rel->r_offset);
3586 			    return false;
3587 			  }
3588 
3589 			offset = _bfd_elf_section_offset
3590 			  (output_bfd, info,
3591 			   input_section, rel->r_offset);
3592 
3593 			if (offset != (bfd_vma)-1)
3594 			  _frvfdpic_add_rofixup (output_bfd,
3595 						 frvfdpic_gotfixup_section
3596 						 (info),
3597 						 offset + input_section
3598 						 ->output_section->vma
3599 						 + input_section->output_offset,
3600 						 picrel);
3601 		      }
3602 		  }
3603 		else if ((bfd_section_flags (input_section->output_section)
3604 			  & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3605 		  {
3606 		    bfd_vma offset;
3607 
3608 		    if (_frvfdpic_osec_readonly_p (output_bfd,
3609 						   input_section
3610 						   ->output_section))
3611 		      {
3612 			info->callbacks->einfo
3613 			  (_("%H: cannot emit dynamic relocations"
3614 			     " in read-only section\n"),
3615 			   input_bfd, input_section, rel->r_offset);
3616 			return false;
3617 		      }
3618 
3619 		    offset = _bfd_elf_section_offset
3620 		      (output_bfd, info,
3621 		       input_section, rel->r_offset);
3622 
3623 		    if (offset != (bfd_vma)-1)
3624 		      _frvfdpic_add_dyn_reloc (output_bfd,
3625 					       frvfdpic_gotrel_section (info),
3626 					       offset + input_section
3627 					       ->output_section->vma
3628 					       + input_section->output_offset,
3629 					       r_type, dynindx, addend, picrel);
3630 		  }
3631 		else
3632 		  addend += frvfdpic_got_section (info)->output_section->vma;
3633 	      }
3634 
3635 	    /* We want the addend in-place because dynamic
3636 	       relocations are REL.  Setting relocation to it should
3637 	       arrange for it to be installed.  */
3638 	    relocation = addend - rel->r_addend;
3639 	  }
3640 	  check_segment[0] = check_segment[1] = got_segment;
3641 	  break;
3642 
3643 	case R_FRV_32:
3644 	  if (! IS_FDPIC (output_bfd))
3645 	    {
3646 	      check_segment[0] = check_segment[1] = -1;
3647 	      break;
3648 	    }
3649 	  /* Fall through.  */
3650 	case R_FRV_FUNCDESC_VALUE:
3651 	  {
3652 	    int dynindx;
3653 	    bfd_vma addend = rel->r_addend;
3654 
3655 	    /* If the symbol is dynamic but binds locally, use
3656 	       section+offset.  */
3657 	    if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3658 	      {
3659 		if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3660 		  {
3661 		    info->callbacks->einfo
3662 		      (_("%H: %s references dynamic symbol"
3663 			 " with nonzero addend\n"),
3664 		       input_bfd, input_section, rel->r_offset,
3665 		       "R_FRV_FUNCDESC_VALUE");
3666 		    return false;
3667 		  }
3668 		dynindx = h->dynindx;
3669 	      }
3670 	    else
3671 	      {
3672 		if (h)
3673 		  addend += h->root.u.def.value;
3674 		else
3675 		  addend += sym->st_value;
3676 		if (osec)
3677 		  addend += osec->output_offset;
3678 		if (osec && osec->output_section
3679 		    && ! bfd_is_abs_section (osec->output_section)
3680 		    && ! bfd_is_und_section (osec->output_section))
3681 		  dynindx = elf_section_data (osec->output_section)->dynindx;
3682 		else
3683 		  dynindx = 0;
3684 	      }
3685 
3686 	    /* If we're linking an executable at a fixed address, we
3687 	       can omit the dynamic relocation as long as the symbol
3688 	       is defined in the current link unit (which is implied
3689 	       by its output section not being NULL).  */
3690 	    if (bfd_link_pde (info)
3691 		&& (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3692 	      {
3693 		if (osec)
3694 		  addend += osec->output_section->vma;
3695 		if (IS_FDPIC (input_bfd)
3696 		    && (bfd_section_flags (input_section->output_section)
3697 			& (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3698 		  {
3699 		    if (_frvfdpic_osec_readonly_p (output_bfd,
3700 						   input_section
3701 						   ->output_section))
3702 		      {
3703 			info->callbacks->einfo
3704 			  (_("%H: cannot emit fixups in read-only section\n"),
3705 			   input_bfd, input_section, rel->r_offset);
3706 			return false;
3707 		      }
3708 		    if (!h || h->root.type != bfd_link_hash_undefweak)
3709 		      {
3710 			bfd_vma offset = _bfd_elf_section_offset
3711 			  (output_bfd, info,
3712 			   input_section, rel->r_offset);
3713 
3714 			if (offset != (bfd_vma)-1)
3715 			  {
3716 			    _frvfdpic_add_rofixup (output_bfd,
3717 						   frvfdpic_gotfixup_section
3718 						   (info),
3719 						   offset + input_section
3720 						   ->output_section->vma
3721 						   + input_section->output_offset,
3722 						   picrel);
3723 			    if (r_type == R_FRV_FUNCDESC_VALUE)
3724 			      _frvfdpic_add_rofixup
3725 				(output_bfd,
3726 				 frvfdpic_gotfixup_section (info),
3727 				 offset
3728 				 + input_section->output_section->vma
3729 				 + input_section->output_offset + 4, picrel);
3730 			  }
3731 		      }
3732 		  }
3733 	      }
3734 	    else
3735 	      {
3736 		if ((bfd_section_flags (input_section->output_section)
3737 		     & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3738 		  {
3739 		    bfd_vma offset;
3740 
3741 		    if (_frvfdpic_osec_readonly_p (output_bfd,
3742 						   input_section
3743 						   ->output_section))
3744 		      {
3745 			info->callbacks->einfo
3746 			  (_("%H: cannot emit dynamic relocations"
3747 			     " in read-only section\n"),
3748 			   input_bfd, input_section, rel->r_offset);
3749 			return false;
3750 		      }
3751 
3752 		    offset = _bfd_elf_section_offset
3753 		      (output_bfd, info,
3754 		       input_section, rel->r_offset);
3755 
3756 		    if (offset != (bfd_vma)-1)
3757 		      _frvfdpic_add_dyn_reloc (output_bfd,
3758 					       frvfdpic_gotrel_section (info),
3759 					       offset + input_section
3760 					       ->output_section->vma
3761 					       + input_section->output_offset,
3762 					       r_type, dynindx, addend, picrel);
3763 		  }
3764 		else if (osec)
3765 		  addend += osec->output_section->vma;
3766 		/* We want the addend in-place because dynamic
3767 		   relocations are REL.  Setting relocation to it
3768 		   should arrange for it to be installed.  */
3769 		relocation = addend - rel->r_addend;
3770 	      }
3771 
3772 	    if (r_type == R_FRV_FUNCDESC_VALUE)
3773 	      {
3774 		/* If we've omitted the dynamic relocation, just emit
3775 		   the fixed addresses of the symbol and of the local
3776 		   GOT base offset.  */
3777 		if (bfd_link_pde (info)
3778 		    && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3779 		  bfd_put_32 (output_bfd,
3780 			      frvfdpic_got_section (info)->output_section->vma
3781 			      + frvfdpic_got_section (info)->output_offset
3782 			      + frvfdpic_got_initial_offset (info),
3783 			      contents + rel->r_offset + 4);
3784 		else
3785 		  /* A function descriptor used for lazy or local
3786 		     resolving is initialized such that its high word
3787 		     contains the output section index in which the
3788 		     PLT entries are located, and the low word
3789 		     contains the offset of the lazy PLT entry entry
3790 		     point into that section.  */
3791 		  bfd_put_32 (output_bfd,
3792 			      h && ! FRVFDPIC_SYM_LOCAL (info, h)
3793 			      ? 0
3794 			      : _frvfdpic_osec_to_segment (output_bfd,
3795 							   sec
3796 							   ->output_section),
3797 			      contents + rel->r_offset + 4);
3798 	      }
3799 	  }
3800 	  check_segment[0] = check_segment[1] = got_segment;
3801 	  break;
3802 
3803 	case R_FRV_GPREL12:
3804 	case R_FRV_GPRELU12:
3805 	case R_FRV_GPREL32:
3806 	case R_FRV_GPRELHI:
3807 	case R_FRV_GPRELLO:
3808 	  check_segment[0] = gprel_segment;
3809 	  check_segment[1] = sec
3810 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3811 	    : (unsigned)-1;
3812 	  break;
3813 
3814 	case R_FRV_GETTLSOFF:
3815 	  relocation = frvfdpic_plt_section (info)->output_section->vma
3816 	    + frvfdpic_plt_section (info)->output_offset
3817 	    + picrel->tlsplt_entry;
3818 	  BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3819 		      && picrel->tlsdesc_entry);
3820 	  check_segment[0] = isec_segment;
3821 	  check_segment[1] = plt_segment;
3822 	  break;
3823 
3824 	case R_FRV_GOTTLSDESC12:
3825 	case R_FRV_GOTTLSDESCHI:
3826 	case R_FRV_GOTTLSDESCLO:
3827 	  BFD_ASSERT (picrel->tlsdesc_entry);
3828 	  relocation = picrel->tlsdesc_entry;
3829 	  check_segment[0] = tls_segment;
3830 	  check_segment[1] = sec
3831 	    && ! bfd_is_abs_section (sec)
3832 	    && ! bfd_is_und_section (sec)
3833 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3834 	    : tls_segment;
3835 	  break;
3836 
3837 	case R_FRV_TLSMOFF12:
3838 	case R_FRV_TLSMOFFHI:
3839 	case R_FRV_TLSMOFFLO:
3840 	case R_FRV_TLSMOFF:
3841 	  check_segment[0] = tls_segment;
3842 	  if (! sec)
3843 	    check_segment[1] = -1;
3844 	  else if (bfd_is_abs_section (sec)
3845 		   || bfd_is_und_section (sec))
3846 	    {
3847 	      relocation = 0;
3848 	      check_segment[1] = tls_segment;
3849 	    }
3850 	  else if (sec->output_section)
3851 	    {
3852 	      relocation -= tls_biased_base (info);
3853 	      check_segment[1] =
3854 		_frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3855 	    }
3856 	  else
3857 	    check_segment[1] = -1;
3858 	  break;
3859 
3860 	case R_FRV_GOTTLSOFF12:
3861 	case R_FRV_GOTTLSOFFHI:
3862 	case R_FRV_GOTTLSOFFLO:
3863 	  BFD_ASSERT (picrel->tlsoff_entry);
3864 	  relocation = picrel->tlsoff_entry;
3865 	  check_segment[0] = tls_segment;
3866 	  check_segment[1] = sec
3867 	    && ! bfd_is_abs_section (sec)
3868 	    && ! bfd_is_und_section (sec)
3869 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3870 	    : tls_segment;
3871 	  break;
3872 
3873 	case R_FRV_TLSDESC_VALUE:
3874 	case R_FRV_TLSOFF:
3875 	  /* These shouldn't be present in input object files.  */
3876 	  check_segment[0] = check_segment[1] = isec_segment;
3877 	  break;
3878 
3879 	case R_FRV_TLSDESC_RELAX:
3880 	case R_FRV_GETTLSOFF_RELAX:
3881 	case R_FRV_TLSOFF_RELAX:
3882 	  /* These are just annotations for relaxation, nothing to do
3883 	     here.  */
3884 	  continue;
3885 
3886 	default:
3887 	  check_segment[0] = isec_segment;
3888 	  check_segment[1] = sec
3889 	    ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3890 	    : (unsigned)-1;
3891 	  break;
3892 	}
3893 
3894       if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3895 	{
3896 	  /* If you take this out, remove the #error from fdpic-static-6.d
3897 	     in the ld testsuite.  */
3898 	  /* This helps catch problems in GCC while we can't do more
3899 	     than static linking.  The idea is to test whether the
3900 	     input file basename is crt0.o only once.  */
3901 	  if (silence_segment_error == 1)
3902 	    silence_segment_error =
3903 	      (strlen (bfd_get_filename (input_bfd)) == 6
3904 	       && filename_cmp (bfd_get_filename (input_bfd), "crt0.o") == 0)
3905 	      || (strlen (bfd_get_filename (input_bfd)) > 6
3906 		  && filename_cmp (bfd_get_filename (input_bfd)
3907 				   + strlen (bfd_get_filename (input_bfd)) - 7,
3908 			     "/crt0.o") == 0)
3909 	      ? -1 : 0;
3910 	  if (!silence_segment_error
3911 	      /* We don't want duplicate errors for undefined
3912 		 symbols.  */
3913 	      && !(picrel && picrel->symndx == -1
3914 		   && picrel->d.h->root.type == bfd_link_hash_undefined))
3915 	    {
3916 	      info->callbacks->einfo
3917 		/* xgettext:c-format */
3918 		(_("%H: reloc against `%s' references a different segment\n"),
3919 		 input_bfd, input_section, rel->r_offset, name);
3920 	    }
3921 	  if (!silence_segment_error && bfd_link_pic (info))
3922 	    return false;
3923 	  elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3924 	}
3925 
3926       switch (r_type)
3927 	{
3928 	case R_FRV_GOTOFFHI:
3929 	case R_FRV_TLSMOFFHI:
3930 	  /* We need the addend to be applied before we shift the
3931 	     value right.  */
3932 	  relocation += rel->r_addend;
3933 	  /* Fall through.  */
3934 	case R_FRV_GOTHI:
3935 	case R_FRV_FUNCDESC_GOTHI:
3936 	case R_FRV_FUNCDESC_GOTOFFHI:
3937 	case R_FRV_GOTTLSOFFHI:
3938 	case R_FRV_GOTTLSDESCHI:
3939 	  relocation >>= 16;
3940 	  /* Fall through.  */
3941 
3942 	case R_FRV_GOTLO:
3943 	case R_FRV_FUNCDESC_GOTLO:
3944 	case R_FRV_GOTOFFLO:
3945 	case R_FRV_FUNCDESC_GOTOFFLO:
3946 	case R_FRV_GOTTLSOFFLO:
3947 	case R_FRV_GOTTLSDESCLO:
3948 	case R_FRV_TLSMOFFLO:
3949 	  relocation &= 0xffff;
3950 	  break;
3951 
3952 	default:
3953 	  break;
3954 	}
3955 
3956       switch (r_type)
3957 	{
3958 	case R_FRV_LABEL24:
3959 	  if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3960 	    break;
3961 	  /* Fall through.  */
3962 
3963 	  /* When referencing a GOT entry, a function descriptor or a
3964 	     PLT, we don't want the addend to apply to the reference,
3965 	     but rather to the referenced symbol.  The actual entry
3966 	     will have already been created taking the addend into
3967 	     account, so cancel it out here.  */
3968 	case R_FRV_GOT12:
3969 	case R_FRV_GOTHI:
3970 	case R_FRV_GOTLO:
3971 	case R_FRV_FUNCDESC_GOT12:
3972 	case R_FRV_FUNCDESC_GOTHI:
3973 	case R_FRV_FUNCDESC_GOTLO:
3974 	case R_FRV_FUNCDESC_GOTOFF12:
3975 	case R_FRV_FUNCDESC_GOTOFFHI:
3976 	case R_FRV_FUNCDESC_GOTOFFLO:
3977 	case R_FRV_GETTLSOFF:
3978 	case R_FRV_GOTTLSDESC12:
3979 	case R_FRV_GOTTLSDESCHI:
3980 	case R_FRV_GOTTLSDESCLO:
3981 	case R_FRV_GOTTLSOFF12:
3982 	case R_FRV_GOTTLSOFFHI:
3983 	case R_FRV_GOTTLSOFFLO:
3984 	  /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3985 	     here, since we do want to apply the addend to the others.
3986 	     Note that we've applied the addend to GOTOFFHI before we
3987 	     shifted it right.  */
3988 	case R_FRV_GOTOFFHI:
3989 	case R_FRV_TLSMOFFHI:
3990 	  relocation -= rel->r_addend;
3991 	  break;
3992 
3993 	default:
3994 	  break;
3995 	}
3996 
3997      if (r_type == R_FRV_HI16)
3998        r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3999 
4000      else if (r_type == R_FRV_LO16)
4001        r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4002 
4003      else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4004        r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4005 				       contents, relocation);
4006 
4007      else if (r_type == R_FRV_GPREL12)
4008        r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4009 				       contents, relocation);
4010 
4011      else if (r_type == R_FRV_GPRELU12)
4012        r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4013 					contents, relocation);
4014 
4015      else if (r_type == R_FRV_GPRELLO)
4016        r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4017 				       contents, relocation);
4018 
4019      else if (r_type == R_FRV_GPRELHI)
4020        r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4021 				       contents, relocation);
4022 
4023      else if (r_type == R_FRV_TLSOFF
4024 	      || r_type == R_FRV_TLSDESC_VALUE)
4025        r = bfd_reloc_notsupported;
4026 
4027      else
4028        r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4029 				    rel, relocation);
4030 
4031       if (r != bfd_reloc_ok)
4032 	{
4033 	  const char * msg = (const char *) NULL;
4034 
4035 	  switch (r)
4036 	    {
4037 	    case bfd_reloc_overflow:
4038 	      (*info->callbacks->reloc_overflow)
4039 		(info, (h ? &h->root : NULL), name, howto->name,
4040 		 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4041 	      break;
4042 
4043 	    case bfd_reloc_undefined:
4044 	      (*info->callbacks->undefined_symbol)
4045 		(info, name, input_bfd, input_section, rel->r_offset, true);
4046 	      break;
4047 
4048 	    case bfd_reloc_outofrange:
4049 	      msg = _("internal error: out of range error");
4050 	      break;
4051 
4052 	    case bfd_reloc_notsupported:
4053 	      msg = _("internal error: unsupported relocation error");
4054 	      break;
4055 
4056 	    case bfd_reloc_dangerous:
4057 	      msg = _("internal error: dangerous relocation");
4058 	      break;
4059 
4060 	    default:
4061 	      msg = _("internal error: unknown error");
4062 	      break;
4063 	    }
4064 
4065 	  if (msg)
4066 	    {
4067 	      info->callbacks->einfo
4068 		/* xgettext:c-format */
4069 		(_("%H: reloc against `%s': %s\n"),
4070 		 input_bfd, input_section, rel->r_offset, name, msg);
4071 	      return false;
4072 	    }
4073 	}
4074     }
4075 
4076   return true;
4077 }
4078 
4079 /* Return the section that should be marked against GC for a given
4080    relocation.  */
4081 
4082 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)4083 elf32_frv_gc_mark_hook (asection *sec,
4084 			struct bfd_link_info *info,
4085 			Elf_Internal_Rela *rel,
4086 			struct elf_link_hash_entry *h,
4087 			Elf_Internal_Sym *sym)
4088 {
4089   if (h != NULL)
4090     switch (ELF32_R_TYPE (rel->r_info))
4091       {
4092       case R_FRV_GNU_VTINHERIT:
4093       case R_FRV_GNU_VTENTRY:
4094 	return NULL;
4095       }
4096 
4097   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4098 }
4099 
4100 /* Hook called by the linker routine which adds symbols from an object
4101    file.  We use it to put .comm items in .scomm, and not .comm.  */
4102 
4103 static bool
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)4104 elf32_frv_add_symbol_hook (bfd *abfd,
4105 			   struct bfd_link_info *info,
4106 			   Elf_Internal_Sym *sym,
4107 			   const char **namep ATTRIBUTE_UNUSED,
4108 			   flagword *flagsp ATTRIBUTE_UNUSED,
4109 			   asection **secp,
4110 			   bfd_vma *valp)
4111 {
4112   if (sym->st_shndx == SHN_COMMON
4113       && !bfd_link_relocatable (info)
4114       && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4115     {
4116       /* Common symbols less than or equal to -G nn bytes are
4117 	 automatically put into .sbss.  */
4118 
4119       asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4120 
4121       if (scomm == NULL)
4122 	{
4123 	  scomm = bfd_make_section_with_flags (abfd, ".scommon",
4124 					       (SEC_ALLOC
4125 						| SEC_IS_COMMON
4126 						| SEC_SMALL_DATA
4127 						| SEC_LINKER_CREATED));
4128 	  if (scomm == NULL)
4129 	    return false;
4130 	}
4131 
4132       *secp = scomm;
4133       *valp = sym->st_size;
4134     }
4135 
4136   return true;
4137 }
4138 
4139 /* We need dynamic symbols for every section, since segments can
4140    relocate independently.  */
4141 static bool
_frvfdpic_link_omit_section_dynsym(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,asection * p ATTRIBUTE_UNUSED)4142 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4143 				    struct bfd_link_info *info
4144 				    ATTRIBUTE_UNUSED,
4145 				    asection *p ATTRIBUTE_UNUSED)
4146 {
4147   switch (elf_section_data (p)->this_hdr.sh_type)
4148     {
4149     case SHT_PROGBITS:
4150     case SHT_NOBITS:
4151       /* If sh_type is yet undecided, assume it could be
4152 	 SHT_PROGBITS/SHT_NOBITS.  */
4153     case SHT_NULL:
4154       return false;
4155 
4156       /* There shouldn't be section relative relocations
4157 	 against any other section.  */
4158     default:
4159       return true;
4160     }
4161 }
4162 
4163 /* Create  a .got section, as well as its additional info field.  This
4164    is almost entirely copied from
4165    elflink.c:_bfd_elf_create_got_section().  */
4166 
4167 static bool
_frv_create_got_section(bfd * abfd,struct bfd_link_info * info)4168 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4169 {
4170   flagword flags, pltflags;
4171   asection *s;
4172   struct elf_link_hash_entry *h;
4173   struct bfd_link_hash_entry *bh;
4174   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4175   int ptralign;
4176   int offset;
4177 
4178   /* This function may be called more than once.  */
4179   s = elf_hash_table (info)->sgot;
4180   if (s != NULL)
4181     return true;
4182 
4183   /* Machine specific: although pointers are 32-bits wide, we want the
4184      GOT to be aligned to a 64-bit boundary, such that function
4185      descriptors in it can be accessed with 64-bit loads and
4186      stores.  */
4187   ptralign = 3;
4188 
4189   flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4190 	   | SEC_LINKER_CREATED);
4191   pltflags = flags;
4192 
4193   s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4194   elf_hash_table (info)->sgot = s;
4195   if (s == NULL
4196       || !bfd_set_section_alignment (s, ptralign))
4197     return false;
4198 
4199   if (bed->want_got_sym)
4200     {
4201       /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4202 	 (or .got.plt) section.  We don't do this in the linker script
4203 	 because we don't want to define the symbol if we are not creating
4204 	 a global offset table.  */
4205       h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4206       elf_hash_table (info)->hgot = h;
4207       if (h == NULL)
4208 	return false;
4209 
4210       /* Machine-specific: we want the symbol for executables as
4211 	 well.  */
4212       if (! bfd_elf_link_record_dynamic_symbol (info, h))
4213 	return false;
4214     }
4215 
4216   /* The first bit of the global offset table is the header.  */
4217   s->size += bed->got_header_size;
4218 
4219   /* This is the machine-specific part.  Create and initialize section
4220      data for the got.  */
4221   if (IS_FDPIC (abfd))
4222     {
4223       frvfdpic_relocs_info (info) = htab_try_create (1,
4224 						     frvfdpic_relocs_info_hash,
4225 						     frvfdpic_relocs_info_eq,
4226 						     (htab_del) NULL);
4227       if (! frvfdpic_relocs_info (info))
4228 	return false;
4229 
4230       s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4231 					      (flags | SEC_READONLY));
4232       elf_hash_table (info)->srelgot = s;
4233       if (s == NULL
4234 	  || !bfd_set_section_alignment (s, 2))
4235 	return false;
4236 
4237       /* Machine-specific.  */
4238       s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4239 					      (flags | SEC_READONLY));
4240       if (s == NULL
4241 	  || !bfd_set_section_alignment (s, 2))
4242 	return false;
4243 
4244       frvfdpic_gotfixup_section (info) = s;
4245       offset = -2048;
4246       flags = BSF_GLOBAL;
4247     }
4248   else
4249     {
4250       offset = 2048;
4251       flags = BSF_GLOBAL | BSF_WEAK;
4252     }
4253 
4254   /* Define _gp in .rofixup, for FDPIC, or .got otherwise.  If it
4255      turns out that we're linking with a different linker script, the
4256      linker script will override it.  */
4257   bh = NULL;
4258   if (!(_bfd_generic_link_add_one_symbol
4259 	(info, abfd, "_gp", flags, s, offset, (const char *) NULL, false,
4260 	 bed->collect, &bh)))
4261     return false;
4262   h = (struct elf_link_hash_entry *) bh;
4263   h->def_regular = 1;
4264   h->type = STT_OBJECT;
4265   /* h->other = STV_HIDDEN; */ /* Should we?  */
4266 
4267   /* Machine-specific: we want the symbol for executables as well.  */
4268   if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4269     return false;
4270 
4271   if (!IS_FDPIC (abfd))
4272     return true;
4273 
4274   /* FDPIC supports Thread Local Storage, and this may require a
4275      procedure linkage table for TLS PLT entries.  */
4276 
4277   /* This is mostly copied from
4278      elflink.c:_bfd_elf_create_dynamic_sections().  */
4279 
4280   flags = pltflags;
4281   pltflags |= SEC_CODE;
4282   if (bed->plt_not_loaded)
4283     pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4284   if (bed->plt_readonly)
4285     pltflags |= SEC_READONLY;
4286 
4287   s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4288   if (s == NULL
4289       || !bfd_set_section_alignment (s, bed->plt_alignment))
4290     return false;
4291   /* FRV-specific: remember it.  */
4292   frvfdpic_plt_section (info) = s;
4293 
4294   /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4295      .plt section.  */
4296   if (bed->want_plt_sym)
4297     {
4298       h = _bfd_elf_define_linkage_sym (abfd, info, s,
4299 				       "_PROCEDURE_LINKAGE_TABLE_");
4300       elf_hash_table (info)->hplt = h;
4301       if (h == NULL)
4302 	return false;
4303     }
4304 
4305   /* FRV-specific: we want rel relocations for the plt.  */
4306   s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4307 					  flags | SEC_READONLY);
4308   if (s == NULL
4309       || !bfd_set_section_alignment (s, bed->s->log_file_align))
4310     return false;
4311   /* FRV-specific: remember it.  */
4312   frvfdpic_pltrel_section (info) = s;
4313 
4314   return true;
4315 }
4316 
4317 /* Make sure the got and plt sections exist, and that our pointers in
4318    the link hash table point to them.  */
4319 
4320 static bool
elf32_frvfdpic_create_dynamic_sections(bfd * abfd,struct bfd_link_info * info)4321 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4322 {
4323   /* This is mostly copied from
4324      elflink.c:_bfd_elf_create_dynamic_sections().  */
4325   flagword flags;
4326   asection *s;
4327   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4328 
4329   flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4330 	   | SEC_LINKER_CREATED);
4331 
4332   /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4333      .rel[a].bss sections.  */
4334 
4335   /* FRV-specific: we want to create the GOT and the PLT in the FRV
4336      way.  */
4337   if (! _frv_create_got_section (abfd, info))
4338     return false;
4339 
4340   /* FRV-specific: make sure we created everything we wanted.  */
4341   BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4342 	      && frvfdpic_gotfixup_section (info)
4343 	      && frvfdpic_plt_section (info)
4344 	      && frvfdpic_pltrel_section (info));
4345 
4346   if (bed->want_dynbss)
4347     {
4348       /* The .dynbss section is a place to put symbols which are defined
4349 	 by dynamic objects, are referenced by regular objects, and are
4350 	 not functions.  We must allocate space for them in the process
4351 	 image and use a R_*_COPY reloc to tell the dynamic linker to
4352 	 initialize them at run time.  The linker script puts the .dynbss
4353 	 section into the .bss section of the final image.  */
4354       s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4355 					      SEC_ALLOC | SEC_LINKER_CREATED);
4356       if (s == NULL)
4357 	return false;
4358 
4359       /* The .rel[a].bss section holds copy relocs.  This section is not
4360      normally needed.  We need to create it here, though, so that the
4361      linker will map it to an output section.  We can't just create it
4362      only if we need it, because we will not know whether we need it
4363      until we have seen all the input files, and the first time the
4364      main linker code calls BFD after examining all the input files
4365      (size_dynamic_sections) the input sections have already been
4366      mapped to the output sections.  If the section turns out not to
4367      be needed, we can discard it later.  We will never need this
4368      section when generating a shared object, since they do not use
4369      copy relocs.  */
4370       if (! bfd_link_pic (info))
4371 	{
4372 	  s = bfd_make_section_anyway_with_flags (abfd,
4373 						  (bed->default_use_rela_p
4374 						   ? ".rela.bss" : ".rel.bss"),
4375 						  flags | SEC_READONLY);
4376 	  if (s == NULL
4377 	      || !bfd_set_section_alignment (s, bed->s->log_file_align))
4378 	    return false;
4379 	}
4380     }
4381 
4382   return true;
4383 }
4384 
4385 /* Compute the total GOT and PLT size required by each symbol in each
4386    range.  Symbols may require up to 4 words in the GOT: an entry
4387    pointing to the symbol, an entry pointing to its function
4388    descriptor, and a private function descriptors taking two
4389    words.  */
4390 
4391 static void
_frvfdpic_count_nontls_entries(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo)4392 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4393 				struct _frvfdpic_dynamic_got_info *dinfo)
4394 {
4395   /* Allocate space for a GOT entry pointing to the symbol.  */
4396   if (entry->got12)
4397     dinfo->got12 += 4;
4398   else if (entry->gotlos)
4399     dinfo->gotlos += 4;
4400   else if (entry->gothilo)
4401     dinfo->gothilo += 4;
4402   else
4403     entry->relocs32--;
4404   entry->relocs32++;
4405 
4406   /* Allocate space for a GOT entry pointing to the function
4407      descriptor.  */
4408   if (entry->fdgot12)
4409     dinfo->got12 += 4;
4410   else if (entry->fdgotlos)
4411     dinfo->gotlos += 4;
4412   else if (entry->fdgothilo)
4413     dinfo->gothilo += 4;
4414   else
4415     entry->relocsfd--;
4416   entry->relocsfd++;
4417 
4418   /* Decide whether we need a PLT entry, a function descriptor in the
4419      GOT, and a lazy PLT entry for this symbol.  */
4420   entry->plt = entry->call
4421     && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4422     && elf_hash_table (dinfo->info)->dynamic_sections_created;
4423   entry->privfd = entry->plt
4424     || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4425     || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4426 	&& (entry->symndx != -1
4427 	    || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4428   entry->lazyplt = entry->privfd
4429     && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4430     && ! (dinfo->info->flags & DF_BIND_NOW)
4431     && elf_hash_table (dinfo->info)->dynamic_sections_created;
4432 
4433   /* Allocate space for a function descriptor.  */
4434   if (entry->fdgoff12)
4435     dinfo->fd12 += 8;
4436   else if (entry->fdgofflos)
4437     dinfo->fdlos += 8;
4438   else if (entry->privfd && entry->plt)
4439     dinfo->fdplt += 8;
4440   else if (entry->privfd)
4441     dinfo->fdhilo += 8;
4442   else
4443     entry->relocsfdv--;
4444   entry->relocsfdv++;
4445 
4446   if (entry->lazyplt)
4447     dinfo->lzplt += 8;
4448 }
4449 
4450 /* Compute the total GOT size required by each TLS symbol in each
4451    range.  Symbols may require up to 5 words in the GOT: an entry
4452    holding the TLS offset for the symbol, and an entry with a full TLS
4453    descriptor taking 4 words.  */
4454 
4455 static void
_frvfdpic_count_tls_entries(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo,bool subtract)4456 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4457 			     struct _frvfdpic_dynamic_got_info *dinfo,
4458 			     bool subtract)
4459 {
4460   const int l = subtract ? -1 : 1;
4461 
4462   /* Allocate space for a GOT entry with the TLS offset of the
4463      symbol.  */
4464   if (entry->tlsoff12)
4465     dinfo->got12 += 4 * l;
4466   else if (entry->tlsofflos)
4467     dinfo->gotlos += 4 * l;
4468   else if (entry->tlsoffhilo)
4469     dinfo->gothilo += 4 * l;
4470   else
4471     entry->relocstlsoff -= l;
4472   entry->relocstlsoff += l;
4473 
4474   /* If there's any TLSOFF relocation, mark the output file as not
4475      suitable for dlopening.  This mark will remain even if we relax
4476      all such relocations, but this is not a problem, since we'll only
4477      do so for executables, and we definitely don't want anyone
4478      dlopening executables.  */
4479   if (entry->relocstlsoff)
4480     dinfo->info->flags |= DF_STATIC_TLS;
4481 
4482   /* Allocate space for a TLS descriptor.  */
4483   if (entry->tlsdesc12)
4484     dinfo->tlsd12 += 8 * l;
4485   else if (entry->tlsdesclos)
4486     dinfo->tlsdlos += 8 * l;
4487   else if (entry->tlsplt)
4488     dinfo->tlsdplt += 8 * l;
4489   else if (entry->tlsdeschilo)
4490     dinfo->tlsdhilo += 8 * l;
4491   else
4492     entry->relocstlsd -= l;
4493   entry->relocstlsd += l;
4494 }
4495 
4496 /* Compute the number of dynamic relocations and fixups that a symbol
4497    requires, and add (or subtract) from the grand and per-symbol
4498    totals.  */
4499 
4500 static void
_frvfdpic_count_relocs_fixups(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo,bool subtract)4501 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4502 			       struct _frvfdpic_dynamic_got_info *dinfo,
4503 			       bool subtract)
4504 {
4505   bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4506 
4507   if (!bfd_link_pde (dinfo->info))
4508     {
4509       relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4510 	+ entry->relocstlsd;
4511 
4512       /* In the executable, TLS relocations to symbols that bind
4513 	 locally (including those that resolve to global TLS offsets)
4514 	 are resolved immediately, without any need for fixups or
4515 	 dynamic relocations.  In shared libraries, however, we must
4516 	 emit dynamic relocations even for local symbols, because we
4517 	 don't know the module id the library is going to get at
4518 	 run-time, nor its TLS base offset.  */
4519       if (!bfd_link_executable (dinfo->info)
4520 	  || (entry->symndx == -1
4521 	      && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4522 	relocs += entry->relocstlsoff;
4523     }
4524   else
4525     {
4526       if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4527 	{
4528 	  if (entry->symndx != -1
4529 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
4530 	    fixups += entry->relocs32 + 2 * entry->relocsfdv;
4531 	  fixups += entry->relocstlsd;
4532 	  tlsrets += entry->relocstlsd;
4533 	}
4534       else
4535 	{
4536 	  relocs += entry->relocs32 + entry->relocsfdv
4537 	    + entry->relocstlsoff + entry->relocstlsd;
4538 	}
4539 
4540       if (entry->symndx != -1
4541 	  || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4542 	{
4543 	  if (entry->symndx != -1
4544 	      || entry->d.h->root.type != bfd_link_hash_undefweak)
4545 	    fixups += entry->relocsfd;
4546 	}
4547       else
4548 	relocs += entry->relocsfd;
4549     }
4550 
4551   if (subtract)
4552     {
4553       relocs = - relocs;
4554       fixups = - fixups;
4555       tlsrets = - tlsrets;
4556     }
4557 
4558   entry->dynrelocs += relocs;
4559   entry->fixups += fixups;
4560   dinfo->relocs += relocs;
4561   dinfo->fixups += fixups;
4562   dinfo->tls_ret_refs += tlsrets;
4563 }
4564 
4565 /* Look for opportunities to relax TLS relocations.  We can assume
4566    we're linking the main executable or a static-tls library, since
4567    otherwise we wouldn't have got here.  When relaxing, we have to
4568    first undo any previous accounting of TLS uses of fixups, dynamic
4569    relocations, GOT and PLT entries.  */
4570 
4571 static void
_frvfdpic_relax_tls_entries(struct frvfdpic_relocs_info * entry,struct _frvfdpic_dynamic_got_info * dinfo,bool relaxing)4572 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4573 			     struct _frvfdpic_dynamic_got_info *dinfo,
4574 			     bool relaxing)
4575 {
4576   bool changed = ! relaxing;
4577 
4578   BFD_ASSERT (bfd_link_executable (dinfo->info)
4579 	      || (dinfo->info->flags & DF_STATIC_TLS));
4580 
4581   if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4582     {
4583       if (! changed)
4584 	{
4585 	  _frvfdpic_count_relocs_fixups (entry, dinfo, true);
4586 	  _frvfdpic_count_tls_entries (entry, dinfo, true);
4587 	  changed = true;
4588 	}
4589 
4590       /* When linking an executable, we can always decay GOTTLSDESC to
4591 	 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4592 	 When linking a static-tls shared library, using TLSMOFF is
4593 	 not an option, but we can still use GOTTLSOFF.  When decaying
4594 	 to GOTTLSOFF, we must keep the GOT entry in range.  We know
4595 	 it has to fit because we'll be trading the 4 words of hte TLS
4596 	 descriptor for a single word in the same range.  */
4597       if (! bfd_link_executable (dinfo->info)
4598 	  || (entry->symndx == -1
4599 	      && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4600 	{
4601 	  entry->tlsoff12 |= entry->tlsdesc12;
4602 	  entry->tlsofflos |= entry->tlsdesclos;
4603 	  entry->tlsoffhilo |= entry->tlsdeschilo;
4604 	}
4605 
4606       entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4607     }
4608 
4609   /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4610      main executable.  We have to check whether the symbol's TLSOFF is
4611      in range for a setlos.  For symbols with a hash entry, we can
4612      determine exactly what to do; for others locals, we don't have
4613      addresses handy, so we use the size of the TLS section as an
4614      approximation.  If we get it wrong, we'll retain a GOT entry
4615      holding the TLS offset (without dynamic relocations or fixups),
4616      but we'll still optimize away the loads from it.  Since TLS sizes
4617      are generally very small, it's probably not worth attempting to
4618      do better than this.  */
4619   if ((entry->tlsplt
4620        || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4621       && bfd_link_executable (dinfo->info) && relaxing
4622       && ((entry->symndx == -1
4623 	   && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4624 	   /* The above may hold for an undefweak TLS symbol, so make
4625 	      sure we don't have this case before accessing def.value
4626 	      and def.section.  */
4627 	   && (entry->d.h->root.type == bfd_link_hash_undefweak
4628 	       || (bfd_vma)(entry->d.h->root.u.def.value
4629 			    + (entry->d.h->root.u.def.section
4630 			       ->output_section->vma)
4631 			    + entry->d.h->root.u.def.section->output_offset
4632 			    + entry->addend
4633 			    - tls_biased_base (dinfo->info)
4634 			    + 32768) < (bfd_vma)65536))
4635 	  || (entry->symndx != -1
4636 	      && (elf_hash_table (dinfo->info)->tls_sec->size
4637 		  + entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
4638     {
4639       if (! changed)
4640 	{
4641 	  _frvfdpic_count_relocs_fixups (entry, dinfo, true);
4642 	  _frvfdpic_count_tls_entries (entry, dinfo, true);
4643 	  changed = true;
4644 	}
4645 
4646       entry->tlsplt =
4647 	entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4648     }
4649 
4650   /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4651      have a #gottlsoff12 relocation for this entry, or if we can fit
4652      one more in the 12-bit (and 16-bit) ranges.  */
4653   if (entry->tlsplt
4654       && (entry->tlsoff12
4655 	  || (relaxing
4656 	      && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4657 	      && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4658 		  + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4659 		  <= 65536 - 12 - 4))))
4660     {
4661       if (! changed)
4662 	{
4663 	  _frvfdpic_count_relocs_fixups (entry, dinfo, true);
4664 	  _frvfdpic_count_tls_entries (entry, dinfo, true);
4665 	  changed = true;
4666 	}
4667 
4668       entry->tlsoff12 = 1;
4669       entry->tlsplt = 0;
4670     }
4671 
4672   if (changed)
4673     {
4674       _frvfdpic_count_tls_entries (entry, dinfo, false);
4675       _frvfdpic_count_relocs_fixups (entry, dinfo, false);
4676     }
4677 
4678   return;
4679 }
4680 
4681 /* Compute the total GOT and PLT size required by each symbol in each range. *
4682    Symbols may require up to 4 words in the GOT: an entry pointing to
4683    the symbol, an entry pointing to its function descriptor, and a
4684    private function descriptors taking two words.  */
4685 
4686 static int
_frvfdpic_count_got_plt_entries(void ** entryp,void * dinfo_)4687 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4688 {
4689   struct frvfdpic_relocs_info *entry = *entryp;
4690   struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4691 
4692   _frvfdpic_count_nontls_entries (entry, dinfo);
4693 
4694   if (bfd_link_executable (dinfo->info)
4695       || (dinfo->info->flags & DF_STATIC_TLS))
4696     _frvfdpic_relax_tls_entries (entry, dinfo, false);
4697   else
4698     {
4699       _frvfdpic_count_tls_entries (entry, dinfo, false);
4700       _frvfdpic_count_relocs_fixups (entry, dinfo, false);
4701     }
4702 
4703   return 1;
4704 }
4705 
4706 /* Determine the positive and negative ranges to be used by each
4707    offset range in the GOT.  FDCUR and CUR, that must be aligned to a
4708    double-word boundary, are the minimum (negative) and maximum
4709    (positive) GOT offsets already used by previous ranges, except for
4710    an ODD entry that may have been left behind.  GOT and FD indicate
4711    the size of GOT entries and function descriptors that must be
4712    placed within the range from -WRAP to WRAP.  If there's room left,
4713    up to FDPLT bytes should be reserved for additional function
4714    descriptors.  */
4715 
4716 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)4717 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4718 				  bfd_signed_vma fdcur,
4719 				  bfd_signed_vma odd,
4720 				  bfd_signed_vma cur,
4721 				  bfd_vma got,
4722 				  bfd_vma fd,
4723 				  bfd_vma fdplt,
4724 				  bfd_vma tlsd,
4725 				  bfd_vma tlsdplt,
4726 				  bfd_vma wrap)
4727 {
4728   bfd_signed_vma wrapmin = -wrap;
4729   const bfd_vma tdescsz = 8;
4730 
4731   /* Start at the given initial points.  */
4732   gad->fdcur = fdcur;
4733   gad->cur = cur;
4734 
4735   /* If we had an incoming odd word and we have any got entries that
4736      are going to use it, consume it, otherwise leave gad->odd at
4737      zero.  We might force gad->odd to zero and return the incoming
4738      odd such that it is used by the next range, but then GOT entries
4739      might appear to be out of order and we wouldn't be able to
4740      shorten the GOT by one word if it turns out to end with an
4741      unpaired GOT entry.  */
4742   if (odd && got)
4743     {
4744       gad->odd = odd;
4745       got -= 4;
4746       odd = 0;
4747     }
4748   else
4749     gad->odd = 0;
4750 
4751   /* If we're left with an unpaired GOT entry, compute its location
4752      such that we can return it.  Otherwise, if got doesn't require an
4753      odd number of words here, either odd was already zero in the
4754      block above, or it was set to zero because got was non-zero, or
4755      got was already zero.  In the latter case, we want the value of
4756      odd to carry over to the return statement, so we don't want to
4757      reset odd unless the condition below is true.  */
4758   if (got & 4)
4759     {
4760       odd = cur + got;
4761       got += 4;
4762     }
4763 
4764   /* Compute the tentative boundaries of this range.  */
4765   gad->max = cur + got;
4766   gad->min = fdcur - fd;
4767   gad->fdplt = 0;
4768 
4769   /* If function descriptors took too much space, wrap some of them
4770      around.  */
4771   if (gad->min < wrapmin)
4772     {
4773       gad->max += wrapmin - gad->min;
4774       gad->tmin = gad->min = wrapmin;
4775     }
4776 
4777   /* If GOT entries took too much space, wrap some of them around.
4778      This may well cause gad->min to become lower than wrapmin.  This
4779      will cause a relocation overflow later on, so we don't have to
4780      report it here . */
4781   if ((bfd_vma) gad->max > wrap)
4782     {
4783       gad->min -= gad->max - wrap;
4784       gad->max = wrap;
4785     }
4786 
4787   /* Add TLS descriptors.  */
4788   gad->tmax = gad->max + tlsd;
4789   gad->tmin = gad->min;
4790   gad->tlsdplt = 0;
4791 
4792   /* If TLS descriptors took too much space, wrap an integral number
4793      of them around.  */
4794   if ((bfd_vma) gad->tmax > wrap)
4795     {
4796       bfd_vma wrapsize = gad->tmax - wrap;
4797 
4798       wrapsize += tdescsz / 2;
4799       wrapsize &= ~ tdescsz / 2;
4800 
4801       gad->tmin -= wrapsize;
4802       gad->tmax -= wrapsize;
4803     }
4804 
4805   /* If there is space left and we have function descriptors
4806      referenced in PLT entries that could take advantage of shorter
4807      offsets, place them now.  */
4808   if (fdplt && gad->tmin > wrapmin)
4809     {
4810       bfd_vma fds;
4811 
4812       if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4813 	fds = gad->tmin - wrapmin;
4814       else
4815 	fds = fdplt;
4816 
4817       fdplt -= fds;
4818       gad->min -= fds;
4819       gad->tmin -= fds;
4820       gad->fdplt += fds;
4821     }
4822 
4823   /* If there is more space left, try to place some more function
4824      descriptors for PLT entries.  */
4825   if (fdplt && (bfd_vma) gad->tmax < wrap)
4826     {
4827       bfd_vma fds;
4828 
4829       if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4830 	fds = wrap - gad->tmax;
4831       else
4832 	fds = fdplt;
4833 
4834       fdplt -= fds;
4835       gad->max += fds;
4836       gad->tmax += fds;
4837       gad->fdplt += fds;
4838     }
4839 
4840   /* If there is space left and we have TLS descriptors referenced in
4841      PLT entries that could take advantage of shorter offsets, place
4842      them now.  */
4843   if (tlsdplt && gad->tmin > wrapmin)
4844     {
4845       bfd_vma tlsds;
4846 
4847       if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4848 	tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4849       else
4850 	tlsds = tlsdplt;
4851 
4852       tlsdplt -= tlsds;
4853       gad->tmin -= tlsds;
4854       gad->tlsdplt += tlsds;
4855     }
4856 
4857   /* If there is more space left, try to place some more TLS
4858      descriptors for PLT entries.  Although we could try to fit an
4859      additional TLS descriptor with half of it just before before the
4860      wrap point and another right past the wrap point, this might
4861      cause us to run out of space for the next region, so don't do
4862      it.  */
4863   if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4864     {
4865       bfd_vma tlsds;
4866 
4867       if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4868 	tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4869       else
4870 	tlsds = tlsdplt;
4871 
4872       tlsdplt -= tlsds;
4873       gad->tmax += tlsds;
4874       gad->tlsdplt += tlsds;
4875     }
4876 
4877   /* If odd was initially computed as an offset past the wrap point,
4878      wrap it around.  */
4879   if (odd > gad->max)
4880     odd = gad->min + odd - gad->max;
4881 
4882   /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4883      before returning, so do it here too.  This guarantees that,
4884      should cur and fdcur meet at the wrap point, they'll both be
4885      equal to min.  */
4886   if (gad->cur == gad->max)
4887     gad->cur = gad->min;
4888 
4889   /* Ditto for _frvfdpic_get_tlsdesc_entry().  */
4890   gad->tcur = gad->max;
4891   if (gad->tcur == gad->tmax)
4892     gad->tcur = gad->tmin;
4893 
4894   return odd;
4895 }
4896 
4897 /* Compute the location of the next GOT entry, given the allocation
4898    data for a range.  */
4899 
4900 inline static bfd_signed_vma
_frvfdpic_get_got_entry(struct _frvfdpic_dynamic_got_alloc_data * gad)4901 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4902 {
4903   bfd_signed_vma ret;
4904 
4905   if (gad->odd)
4906     {
4907       /* If there was an odd word left behind, use it.  */
4908       ret = gad->odd;
4909       gad->odd = 0;
4910     }
4911   else
4912     {
4913       /* Otherwise, use the word pointed to by cur, reserve the next
4914 	 as an odd word, and skip to the next pair of words, possibly
4915 	 wrapping around.  */
4916       ret = gad->cur;
4917       gad->odd = gad->cur + 4;
4918       gad->cur += 8;
4919       if (gad->cur == gad->max)
4920 	gad->cur = gad->min;
4921     }
4922 
4923   return ret;
4924 }
4925 
4926 /* Compute the location of the next function descriptor entry in the
4927    GOT, given the allocation data for a range.  */
4928 
4929 inline static bfd_signed_vma
_frvfdpic_get_fd_entry(struct _frvfdpic_dynamic_got_alloc_data * gad)4930 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4931 {
4932   /* If we're at the bottom, wrap around, and only then allocate the
4933      next pair of words.  */
4934   if (gad->fdcur == gad->min)
4935     gad->fdcur = gad->max;
4936   return gad->fdcur -= 8;
4937 }
4938 
4939 /* Compute the location of the next TLS descriptor entry in the GOT,
4940    given the allocation data for a range.  */
4941 inline static bfd_signed_vma
_frvfdpic_get_tlsdesc_entry(struct _frvfdpic_dynamic_got_alloc_data * gad)4942 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4943 {
4944   bfd_signed_vma ret;
4945 
4946   ret = gad->tcur;
4947 
4948   gad->tcur += 8;
4949 
4950   /* If we're at the top of the region, wrap around to the bottom.  */
4951   if (gad->tcur == gad->tmax)
4952     gad->tcur = gad->tmin;
4953 
4954   return ret;
4955 }
4956 
4957 /* Assign GOT offsets for every GOT entry and function descriptor.
4958    Doing everything in a single pass is tricky.  */
4959 
4960 static int
_frvfdpic_assign_got_entries(void ** entryp,void * info_)4961 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4962 {
4963   struct frvfdpic_relocs_info *entry = *entryp;
4964   struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4965 
4966   if (entry->got12)
4967     entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4968   else if (entry->gotlos)
4969     entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4970   else if (entry->gothilo)
4971     entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4972 
4973   if (entry->fdgot12)
4974     entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4975   else if (entry->fdgotlos)
4976     entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4977   else if (entry->fdgothilo)
4978     entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4979 
4980   if (entry->fdgoff12)
4981     entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4982   else if (entry->plt && dinfo->got12.fdplt)
4983     {
4984       dinfo->got12.fdplt -= 8;
4985       entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4986     }
4987   else if (entry->fdgofflos)
4988     entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4989   else if (entry->plt && dinfo->gotlos.fdplt)
4990     {
4991       dinfo->gotlos.fdplt -= 8;
4992       entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4993     }
4994   else if (entry->plt)
4995     {
4996       dinfo->gothilo.fdplt -= 8;
4997       entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
4998     }
4999   else if (entry->privfd)
5000     entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5001 
5002   if (entry->tlsoff12)
5003     entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5004   else if (entry->tlsofflos)
5005     entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5006   else if (entry->tlsoffhilo)
5007     entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5008 
5009   if (entry->tlsdesc12)
5010     entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5011   else if (entry->tlsplt && dinfo->got12.tlsdplt)
5012     {
5013       dinfo->got12.tlsdplt -= 8;
5014       entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5015     }
5016   else if (entry->tlsdesclos)
5017     entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5018   else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5019     {
5020       dinfo->gotlos.tlsdplt -= 8;
5021       entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5022     }
5023   else if (entry->tlsplt)
5024     {
5025       dinfo->gothilo.tlsdplt -= 8;
5026       entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5027     }
5028   else if (entry->tlsdeschilo)
5029     entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5030 
5031   return 1;
5032 }
5033 
5034 /* Assign GOT offsets to private function descriptors used by PLT
5035    entries (or referenced by 32-bit offsets), as well as PLT entries
5036    and lazy PLT entries.  */
5037 
5038 static int
_frvfdpic_assign_plt_entries(void ** entryp,void * info_)5039 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5040 {
5041   struct frvfdpic_relocs_info *entry = *entryp;
5042   struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5043 
5044   if (entry->privfd)
5045     BFD_ASSERT (entry->fd_entry);
5046 
5047   if (entry->plt)
5048     {
5049       int size;
5050 
5051       /* We use the section's raw size to mark the location of the
5052 	 next PLT entry.  */
5053       entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5054 
5055       /* Figure out the length of this PLT entry based on the
5056 	 addressing mode we need to reach the function descriptor.  */
5057       BFD_ASSERT (entry->fd_entry);
5058       if (entry->fd_entry >= -(1 << (12 - 1))
5059 	  && entry->fd_entry < (1 << (12 - 1)))
5060 	size = 8;
5061       else if (entry->fd_entry >= -(1 << (16 - 1))
5062 	       && entry->fd_entry < (1 << (16 - 1)))
5063 	size = 12;
5064       else
5065 	size = 16;
5066 
5067       frvfdpic_plt_section (dinfo->g.info)->size += size;
5068     }
5069 
5070   if (entry->lazyplt)
5071     {
5072       entry->lzplt_entry = dinfo->g.lzplt;
5073       dinfo->g.lzplt += 8;
5074       /* If this entry is the one that gets the resolver stub, account
5075 	 for the additional instruction.  */
5076       if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5077 	  == FRVFDPIC_LZPLT_RESOLV_LOC)
5078 	dinfo->g.lzplt += 4;
5079     }
5080 
5081   if (entry->tlsplt)
5082     {
5083       int size;
5084 
5085       entry->tlsplt_entry
5086 	= frvfdpic_plt_section (dinfo->g.info)->size;
5087 
5088       if (bfd_link_executable (dinfo->g.info)
5089 	  && (entry->symndx != -1
5090 	      || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5091 	{
5092 	  if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5093 	      /* FIXME: here we use the size of the TLS section
5094 		 as an upper bound for the value of the TLS
5095 		 symbol, because we may not know the exact value
5096 		 yet.  If we get it wrong, we'll just waste a
5097 		 word in the PLT, and we should never get even
5098 		 close to 32 KiB of TLS anyway.  */
5099 	      && elf_hash_table (dinfo->g.info)->tls_sec
5100 	      && (elf_hash_table (dinfo->g.info)->tls_sec->size
5101 		  + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5102 	    size = 8;
5103 	  else
5104 	    size = 12;
5105 	}
5106       else if (entry->tlsoff_entry)
5107 	{
5108 	  if (entry->tlsoff_entry >= -(1 << (12 - 1))
5109 	      && entry->tlsoff_entry < (1 << (12 - 1)))
5110 	    size = 8;
5111 	  else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5112 		   && entry->tlsoff_entry < (1 << (16 - 1)))
5113 	    size = 12;
5114 	  else
5115 	    size = 16;
5116 	}
5117       else
5118 	{
5119 	  BFD_ASSERT (entry->tlsdesc_entry);
5120 
5121 	  if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5122 	      && entry->tlsdesc_entry < (1 << (12 - 1)))
5123 	    size = 8;
5124 	  else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5125 		   && entry->tlsdesc_entry < (1 << (16 - 1)))
5126 	    size = 12;
5127 	  else
5128 	    size = 16;
5129 	}
5130 
5131       frvfdpic_plt_section (dinfo->g.info)->size += size;
5132     }
5133 
5134   return 1;
5135 }
5136 
5137 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5138    _frvfdpic_assign_plt_entries.  */
5139 
5140 static int
_frvfdpic_reset_got_plt_entries(void ** entryp,void * ignore ATTRIBUTE_UNUSED)5141 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5142 {
5143   struct frvfdpic_relocs_info *entry = *entryp;
5144 
5145   entry->got_entry = 0;
5146   entry->fdgot_entry = 0;
5147   entry->fd_entry = 0;
5148   entry->plt_entry = (bfd_vma)-1;
5149   entry->lzplt_entry = (bfd_vma)-1;
5150   entry->tlsoff_entry = 0;
5151   entry->tlsdesc_entry = 0;
5152   entry->tlsplt_entry = (bfd_vma)-1;
5153 
5154   return 1;
5155 }
5156 
5157 /* Follow indirect and warning hash entries so that each got entry
5158    points to the final symbol definition.  P must point to a pointer
5159    to the hash table we're traversing.  Since this traversal may
5160    modify the hash table, we set this pointer to NULL to indicate
5161    we've made a potentially-destructive change to the hash table, so
5162    the traversal must be restarted.  */
5163 static int
_frvfdpic_resolve_final_relocs_info(void ** entryp,void * p)5164 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5165 {
5166   struct frvfdpic_relocs_info *entry = *entryp;
5167   htab_t *htab = p;
5168 
5169   if (entry->symndx == -1)
5170     {
5171       struct elf_link_hash_entry *h = entry->d.h;
5172       struct frvfdpic_relocs_info *oentry;
5173 
5174       while (h->root.type == bfd_link_hash_indirect
5175 	     || h->root.type == bfd_link_hash_warning)
5176 	h = (struct elf_link_hash_entry *)h->root.u.i.link;
5177 
5178       if (entry->d.h == h)
5179 	return 1;
5180 
5181       oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5182 						NO_INSERT);
5183 
5184       if (oentry)
5185 	{
5186 	  /* Merge the two entries.  */
5187 	  frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5188 	  htab_clear_slot (*htab, entryp);
5189 	  return 1;
5190 	}
5191 
5192       entry->d.h = h;
5193 
5194       /* If we can't find this entry with the new bfd hash, re-insert
5195 	 it, and get the traversal restarted.  */
5196       if (! htab_find (*htab, entry))
5197 	{
5198 	  htab_clear_slot (*htab, entryp);
5199 	  entryp = htab_find_slot (*htab, entry, INSERT);
5200 	  if (! *entryp)
5201 	    *entryp = entry;
5202 	  /* Abort the traversal, since the whole table may have
5203 	     moved, and leave it up to the parent to restart the
5204 	     process.  */
5205 	  *(htab_t *)p = NULL;
5206 	  return 0;
5207 	}
5208     }
5209 
5210   return 1;
5211 }
5212 
5213 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5214    section and the rofixup section.  Assign locations for GOT and PLT
5215    entries.  */
5216 
5217 static bool
_frvfdpic_size_got_plt(bfd * output_bfd,struct _frvfdpic_dynamic_got_plt_info * gpinfop)5218 _frvfdpic_size_got_plt (bfd *output_bfd,
5219 			struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5220 {
5221   bfd_signed_vma odd;
5222   bfd_vma limit, tlslimit;
5223   struct bfd_link_info *info = gpinfop->g.info;
5224   bfd *dynobj = elf_hash_table (info)->dynobj;
5225 
5226   memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5227 	  sizeof (gpinfop->g));
5228 
5229   odd = 12;
5230   /* Compute the total size taken by entries in the 12-bit and 16-bit
5231      ranges, to tell how many PLT function descriptors we can bring
5232      into the 12-bit range without causing the 16-bit range to
5233      overflow.  */
5234   limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5235     + gpinfop->g.fd12 + gpinfop->g.fdlos
5236     + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5237   if (limit < (bfd_vma)1 << 16)
5238     limit = ((bfd_vma)1 << 16) - limit;
5239   else
5240     limit = 0;
5241   if (gpinfop->g.fdplt < limit)
5242     {
5243       tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5244       limit = gpinfop->g.fdplt;
5245     }
5246   else
5247     tlslimit = 0;
5248   if (gpinfop->g.tlsdplt < tlslimit)
5249     tlslimit = gpinfop->g.tlsdplt;
5250 
5251   /* Determine the ranges of GOT offsets that we can use for each
5252      range of addressing modes.  */
5253   odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5254 					  0,
5255 					  odd,
5256 					  16,
5257 					  gpinfop->g.got12,
5258 					  gpinfop->g.fd12,
5259 					  limit,
5260 					  gpinfop->g.tlsd12,
5261 					  tlslimit,
5262 					  (bfd_vma)1 << (12-1));
5263   odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5264 					  gpinfop->got12.tmin,
5265 					  odd,
5266 					  gpinfop->got12.tmax,
5267 					  gpinfop->g.gotlos,
5268 					  gpinfop->g.fdlos,
5269 					  gpinfop->g.fdplt
5270 					  - gpinfop->got12.fdplt,
5271 					  gpinfop->g.tlsdlos,
5272 					  gpinfop->g.tlsdplt
5273 					  - gpinfop->got12.tlsdplt,
5274 					  (bfd_vma)1 << (16-1));
5275   odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5276 					  gpinfop->gotlos.tmin,
5277 					  odd,
5278 					  gpinfop->gotlos.tmax,
5279 					  gpinfop->g.gothilo,
5280 					  gpinfop->g.fdhilo,
5281 					  gpinfop->g.fdplt
5282 					  - gpinfop->got12.fdplt
5283 					  - gpinfop->gotlos.fdplt,
5284 					  gpinfop->g.tlsdhilo,
5285 					  gpinfop->g.tlsdplt
5286 					  - gpinfop->got12.tlsdplt
5287 					  - gpinfop->gotlos.tlsdplt,
5288 					  (bfd_vma)1 << (32-1));
5289 
5290   /* Now assign (most) GOT offsets.  */
5291   htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5292 		 gpinfop);
5293 
5294   frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5295     - gpinfop->gothilo.tmin
5296     /* If an odd word is the last word of the GOT, we don't need this
5297        word to be part of the GOT.  */
5298     - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5299   if (frvfdpic_got_section (info)->size == 0)
5300     frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5301   else if (frvfdpic_got_section (info)->size == 12
5302 	   && ! elf_hash_table (info)->dynamic_sections_created)
5303     {
5304       frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5305       frvfdpic_got_section (info)->size = 0;
5306     }
5307   /* This will be non-NULL during relaxation.  The assumption is that
5308      the size of one of these sections will never grow, only shrink,
5309      so we can use the larger buffer we allocated before.  */
5310   else if (frvfdpic_got_section (info)->contents == NULL)
5311     {
5312       frvfdpic_got_section (info)->contents =
5313 	(bfd_byte *) bfd_zalloc (dynobj,
5314 				 frvfdpic_got_section (info)->size);
5315       if (frvfdpic_got_section (info)->contents == NULL)
5316 	return false;
5317     }
5318 
5319   if (frvfdpic_gotrel_section (info))
5320     /* Subtract the number of lzplt entries, since those will generate
5321        relocations in the pltrel section.  */
5322     frvfdpic_gotrel_section (info)->size =
5323       (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5324       * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5325   else
5326     BFD_ASSERT (gpinfop->g.relocs == 0);
5327   if (frvfdpic_gotrel_section (info)->size == 0)
5328     frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5329   else if (frvfdpic_gotrel_section (info)->contents == NULL)
5330     {
5331       frvfdpic_gotrel_section (info)->contents =
5332 	(bfd_byte *) bfd_zalloc (dynobj,
5333 				 frvfdpic_gotrel_section (info)->size);
5334       if (frvfdpic_gotrel_section (info)->contents == NULL)
5335 	return false;
5336     }
5337 
5338   frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5339   if (frvfdpic_gotfixup_section (info)->size == 0)
5340     frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5341   else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5342     {
5343       frvfdpic_gotfixup_section (info)->contents =
5344 	(bfd_byte *) bfd_zalloc (dynobj,
5345 				 frvfdpic_gotfixup_section (info)->size);
5346       if (frvfdpic_gotfixup_section (info)->contents == NULL)
5347 	return false;
5348     }
5349 
5350   if (frvfdpic_pltrel_section (info))
5351     {
5352       frvfdpic_pltrel_section (info)->size =
5353 	gpinfop->g.lzplt / 8
5354 	* get_elf_backend_data (output_bfd)->s->sizeof_rel;
5355       if (frvfdpic_pltrel_section (info)->size == 0)
5356 	frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5357       else if (frvfdpic_pltrel_section (info)->contents == NULL)
5358 	{
5359 	  frvfdpic_pltrel_section (info)->contents =
5360 	    (bfd_byte *) bfd_zalloc (dynobj,
5361 				     frvfdpic_pltrel_section (info)->size);
5362 	  if (frvfdpic_pltrel_section (info)->contents == NULL)
5363 	    return false;
5364 	}
5365     }
5366 
5367   /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5368      such that there's room for the additional instruction needed to
5369      call the resolver.  Since _frvfdpic_assign_got_entries didn't
5370      account for them, our block size is 4 bytes smaller than the real
5371      block size.  */
5372   if (frvfdpic_plt_section (info))
5373     {
5374       frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5375 	+ ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5376 	   / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5377     }
5378 
5379   /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5380      actually assign lazy PLT entries addresses.  */
5381   gpinfop->g.lzplt = 0;
5382 
5383   /* Save information that we're going to need to generate GOT and PLT
5384      entries.  */
5385   frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5386 
5387   if (get_elf_backend_data (output_bfd)->want_got_sym)
5388     elf_hash_table (info)->hgot->root.u.def.value
5389       = frvfdpic_got_initial_offset (info);
5390 
5391   if (frvfdpic_plt_section (info))
5392     frvfdpic_plt_initial_offset (info) =
5393       frvfdpic_plt_section (info)->size;
5394 
5395   /* Allocate a ret statement at plt_initial_offset, to be used by
5396      locally-resolved TLS descriptors.  */
5397   if (gpinfop->g.tls_ret_refs)
5398     frvfdpic_plt_section (info)->size += 4;
5399 
5400   htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5401 		 gpinfop);
5402 
5403   /* Allocate the PLT section contents only after
5404      _frvfdpic_assign_plt_entries has a chance to add the size of the
5405      non-lazy PLT entries.  */
5406   if (frvfdpic_plt_section (info))
5407     {
5408       if (frvfdpic_plt_section (info)->size == 0)
5409 	frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5410       else if (frvfdpic_plt_section (info)->contents == NULL)
5411 	{
5412 	  frvfdpic_plt_section (info)->contents =
5413 	    (bfd_byte *) bfd_zalloc (dynobj,
5414 				     frvfdpic_plt_section (info)->size);
5415 	  if (frvfdpic_plt_section (info)->contents == NULL)
5416 	    return false;
5417 	}
5418     }
5419 
5420   return true;
5421 }
5422 
5423 /* Set the sizes of the dynamic sections.  */
5424 
5425 static bool
elf32_frvfdpic_size_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)5426 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5427 				      struct bfd_link_info *info)
5428 {
5429   bfd *dynobj;
5430   asection *s;
5431   struct _frvfdpic_dynamic_got_plt_info gpinfo;
5432 
5433   dynobj = elf_hash_table (info)->dynobj;
5434   BFD_ASSERT (dynobj != NULL);
5435 
5436   if (elf_hash_table (info)->dynamic_sections_created)
5437     {
5438       /* Set the contents of the .interp section to the interpreter.  */
5439       if (bfd_link_executable (info) && !info->nointerp)
5440 	{
5441 	  s = bfd_get_linker_section (dynobj, ".interp");
5442 	  BFD_ASSERT (s != NULL);
5443 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5444 	  s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5445 	}
5446     }
5447 
5448   memset (&gpinfo, 0, sizeof (gpinfo));
5449   gpinfo.g.info = info;
5450 
5451   for (;;)
5452     {
5453       htab_t relocs = frvfdpic_relocs_info (info);
5454 
5455       htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5456 
5457       if (relocs == frvfdpic_relocs_info (info))
5458 	break;
5459     }
5460 
5461   htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5462 		 &gpinfo.g);
5463 
5464   /* Allocate space to save the summary information, we're going to
5465      use it if we're doing relaxations.  */
5466   frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5467 
5468   if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5469     return false;
5470 
5471   return _bfd_elf_add_dynamic_tags (output_bfd, info, true);
5472 }
5473 
5474 static bool
elf32_frvfdpic_always_size_sections(bfd * output_bfd,struct bfd_link_info * info)5475 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5476 				     struct bfd_link_info *info)
5477 {
5478   if (!bfd_link_relocatable (info)
5479       && !bfd_elf_stack_segment_size (output_bfd, info,
5480 				      "__stacksize", DEFAULT_STACK_SIZE))
5481     return false;
5482 
5483   return true;
5484 }
5485 
5486 /* Check whether any of the relocations was optimized away, and
5487    subtract it from the relocation or fixup count.  */
5488 static bool
_frvfdpic_check_discarded_relocs(bfd * abfd,asection * sec,struct bfd_link_info * info,bool * changed)5489 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5490 				  struct bfd_link_info *info,
5491 				  bool *changed)
5492 {
5493   Elf_Internal_Shdr *symtab_hdr;
5494   struct elf_link_hash_entry **sym_hashes;
5495   Elf_Internal_Rela *rel, *erel;
5496 
5497   if ((sec->flags & SEC_RELOC) == 0
5498       || sec->reloc_count == 0)
5499     return true;
5500 
5501   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5502   sym_hashes = elf_sym_hashes (abfd);
5503 
5504   rel = elf_section_data (sec)->relocs;
5505 
5506   /* Now examine each relocation.  */
5507   for (erel = rel + sec->reloc_count; rel < erel; rel++)
5508     {
5509       struct elf_link_hash_entry *h;
5510       unsigned long r_symndx;
5511       struct frvfdpic_relocs_info *picrel;
5512       struct _frvfdpic_dynamic_got_info *dinfo;
5513 
5514       if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5515 	  && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5516 	continue;
5517 
5518       if (_bfd_elf_section_offset (sec->output_section->owner,
5519 				   info, sec, rel->r_offset)
5520 	  != (bfd_vma)-1)
5521 	continue;
5522 
5523       r_symndx = ELF32_R_SYM (rel->r_info);
5524       if (r_symndx < symtab_hdr->sh_info)
5525 	h = NULL;
5526       else
5527 	{
5528 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5529 	  while (h->root.type == bfd_link_hash_indirect
5530 		 || h->root.type == bfd_link_hash_warning)
5531 	    h = (struct elf_link_hash_entry *)h->root.u.i.link;
5532 	}
5533 
5534       if (h != NULL)
5535 	picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5536 						  abfd, h,
5537 						  rel->r_addend, NO_INSERT);
5538       else
5539 	picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5540 						 abfd, r_symndx,
5541 						 rel->r_addend, NO_INSERT);
5542 
5543       if (! picrel)
5544 	return false;
5545 
5546       *changed = true;
5547       dinfo = frvfdpic_dynamic_got_plt_info (info);
5548 
5549       _frvfdpic_count_relocs_fixups (picrel, dinfo, true);
5550       if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5551 	picrel->relocs32--;
5552       else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5553 	picrel->relocsfd--;
5554       _frvfdpic_count_relocs_fixups (picrel, dinfo, false);
5555     }
5556 
5557   return true;
5558 }
5559 
5560 static bool
frvfdpic_elf_discard_info(bfd * ibfd,struct elf_reloc_cookie * cookie ATTRIBUTE_UNUSED,struct bfd_link_info * info)5561 frvfdpic_elf_discard_info (bfd *ibfd,
5562 			   struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5563 			   struct bfd_link_info *info)
5564 {
5565   bool changed = false;
5566   asection *s;
5567   bfd *obfd = NULL;
5568 
5569   /* Account for relaxation of .eh_frame section.  */
5570   for (s = ibfd->sections; s; s = s->next)
5571     if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5572       {
5573 	if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5574 	  return false;
5575 	obfd = s->output_section->owner;
5576       }
5577 
5578   if (changed)
5579     {
5580       struct _frvfdpic_dynamic_got_plt_info gpinfo;
5581 
5582       memset (&gpinfo, 0, sizeof (gpinfo));
5583       memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5584 	      sizeof (gpinfo.g));
5585 
5586       /* Clear GOT and PLT assignments.  */
5587       htab_traverse (frvfdpic_relocs_info (info),
5588 		     _frvfdpic_reset_got_plt_entries,
5589 		     NULL);
5590 
5591       if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5592 	return false;
5593     }
5594 
5595   return true;
5596 }
5597 
5598 /* Look for opportunities to relax TLS relocations.  We can assume
5599    we're linking the main executable or a static-tls library, since
5600    otherwise we wouldn't have got here.  */
5601 
5602 static int
_frvfdpic_relax_got_plt_entries(void ** entryp,void * dinfo_)5603 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5604 {
5605   struct frvfdpic_relocs_info *entry = *entryp;
5606   struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5607 
5608   _frvfdpic_relax_tls_entries (entry, dinfo, true);
5609 
5610   return 1;
5611 }
5612 
5613 static bool
elf32_frvfdpic_relax_section(bfd * abfd ATTRIBUTE_UNUSED,asection * sec,struct bfd_link_info * info,bool * again)5614 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5615 			      struct bfd_link_info *info, bool *again)
5616 {
5617   struct _frvfdpic_dynamic_got_plt_info gpinfo;
5618 
5619   if (bfd_link_relocatable (info))
5620     (*info->callbacks->einfo)
5621       (_("%P%F: --relax and -r may not be used together\n"));
5622 
5623   /* If we return early, we didn't change anything.  */
5624   *again = false;
5625 
5626   /* We'll do our thing when requested to relax the GOT section.  */
5627   if (sec != frvfdpic_got_section (info))
5628     return true;
5629 
5630   /* We can only relax when linking the main executable or a library
5631      that can't be dlopened.  */
5632   if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
5633     return true;
5634 
5635   /* If there isn't a TLS section for this binary, we can't do
5636      anything about its TLS relocations (it probably doesn't have
5637      any.  */
5638   if (elf_hash_table (info)->tls_sec == NULL)
5639     return true;
5640 
5641   memset (&gpinfo, 0, sizeof (gpinfo));
5642   memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5643 
5644   /* Now look for opportunities to relax, adjusting the GOT usage
5645      as needed.  */
5646   htab_traverse (frvfdpic_relocs_info (info),
5647 		 _frvfdpic_relax_got_plt_entries,
5648 		 &gpinfo.g);
5649 
5650   /* If we changed anything, reset and re-assign GOT and PLT entries.  */
5651   if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5652 	      &gpinfo.g, sizeof (gpinfo.g)) != 0)
5653     {
5654       /* Clear GOT and PLT assignments.  */
5655       htab_traverse (frvfdpic_relocs_info (info),
5656 		     _frvfdpic_reset_got_plt_entries,
5657 		     NULL);
5658 
5659       /* The owner of the TLS section is the output bfd.  There should
5660 	 be a better way to get to it.  */
5661       if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5662 				   &gpinfo))
5663 	return false;
5664 
5665       /* Repeat until we don't make any further changes.  We could fail to
5666 	 introduce changes in a round if, for example, the 12-bit range is
5667 	 full, but we later release some space by getting rid of TLS
5668 	 descriptors in it.  We have to repeat the whole process because
5669 	 we might have changed the size of a section processed before this
5670 	 one.  */
5671       *again = true;
5672     }
5673 
5674   return true;
5675 }
5676 
5677 /* Fill in code and data in dynamic sections.  */
5678 
5679 static bool
elf32_frv_finish_dynamic_sections(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED)5680 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5681 				   struct bfd_link_info *info ATTRIBUTE_UNUSED)
5682 {
5683   /* Nothing to be done for non-FDPIC.  */
5684   return true;
5685 }
5686 
5687 static bool
elf32_frvfdpic_finish_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)5688 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5689 					struct bfd_link_info *info)
5690 {
5691   bfd *dynobj;
5692   asection *sdyn;
5693 
5694   dynobj = elf_hash_table (info)->dynobj;
5695 
5696   if (frvfdpic_dynamic_got_plt_info (info))
5697     {
5698       BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5699     }
5700   if (frvfdpic_got_section (info))
5701     {
5702       BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5703 		  == (frvfdpic_gotrel_section (info)->reloc_count
5704 		      * sizeof (Elf32_External_Rel)));
5705 
5706       if (frvfdpic_gotfixup_section (info))
5707 	{
5708 	  struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5709 	  bfd_vma got_value = hgot->root.u.def.value
5710 	    + hgot->root.u.def.section->output_section->vma
5711 	    + hgot->root.u.def.section->output_offset;
5712 	  struct bfd_link_hash_entry *hend;
5713 
5714 	  _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5715 				 got_value, 0);
5716 
5717 	  if (frvfdpic_gotfixup_section (info)->size
5718 	      != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5719 	    {
5720 	    error:
5721 	      info->callbacks->einfo
5722 		("LINKER BUG: .rofixup section size mismatch\n");
5723 	      return false;
5724 	    }
5725 
5726 	  hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5727 				       false, false, true);
5728 	  if (hend
5729 	      && (hend->type == bfd_link_hash_defined
5730 		  || hend->type == bfd_link_hash_defweak)
5731 	      && hend->u.def.section->output_section != NULL)
5732 	    {
5733 	      bfd_vma value =
5734 		frvfdpic_gotfixup_section (info)->output_section->vma
5735 		+ frvfdpic_gotfixup_section (info)->output_offset
5736 		+ frvfdpic_gotfixup_section (info)->size
5737 		- hend->u.def.section->output_section->vma
5738 		- hend->u.def.section->output_offset;
5739 	      BFD_ASSERT (hend->u.def.value == value);
5740 	      if (hend->u.def.value != value)
5741 		goto error;
5742 	    }
5743 	}
5744     }
5745   if (frvfdpic_pltrel_section (info))
5746     {
5747       BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5748 		  == (frvfdpic_pltrel_section (info)->reloc_count
5749 		      * sizeof (Elf32_External_Rel)));
5750     }
5751 
5752 
5753   if (elf_hash_table (info)->dynamic_sections_created)
5754     {
5755       Elf32_External_Dyn * dyncon;
5756       Elf32_External_Dyn * dynconend;
5757 
5758       sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5759 
5760       BFD_ASSERT (sdyn != NULL);
5761 
5762       dyncon = (Elf32_External_Dyn *) sdyn->contents;
5763       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5764 
5765       for (; dyncon < dynconend; dyncon++)
5766 	{
5767 	  Elf_Internal_Dyn dyn;
5768 
5769 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5770 
5771 	  switch (dyn.d_tag)
5772 	    {
5773 	    default:
5774 	      break;
5775 
5776 	    case DT_PLTGOT:
5777 	      dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5778 		+ frvfdpic_got_section (info)->output_offset
5779 		+ frvfdpic_got_initial_offset (info);
5780 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5781 	      break;
5782 
5783 	    case DT_JMPREL:
5784 	      dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5785 		->output_section->vma
5786 		+ frvfdpic_pltrel_section (info)->output_offset;
5787 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5788 	      break;
5789 
5790 	    case DT_PLTRELSZ:
5791 	      dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5792 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5793 	      break;
5794 	    }
5795 	}
5796     }
5797 
5798   return true;
5799 }
5800 
5801 /* Adjust a symbol defined by a dynamic object and referenced by a
5802    regular object.  */
5803 
5804 static bool
elf32_frvfdpic_adjust_dynamic_symbol(struct bfd_link_info * info ATTRIBUTE_UNUSED,struct elf_link_hash_entry * h ATTRIBUTE_UNUSED)5805 elf32_frvfdpic_adjust_dynamic_symbol
5806 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5807  struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5808 {
5809   bfd * dynobj;
5810 
5811   dynobj = elf_hash_table (info)->dynobj;
5812 
5813   /* Make sure we know what is going on here.  */
5814   BFD_ASSERT (dynobj != NULL
5815 	      && (h->is_weakalias
5816 		  || (h->def_dynamic
5817 		      && h->ref_regular
5818 		      && !h->def_regular)));
5819 
5820   /* If this is a weak symbol, and there is a real definition, the
5821      processor independent code will have arranged for us to see the
5822      real definition first, and we can just use the same value.  */
5823   if (h->is_weakalias)
5824     {
5825       struct elf_link_hash_entry *def = weakdef (h);
5826       BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5827       h->root.u.def.section = def->root.u.def.section;
5828       h->root.u.def.value = def->root.u.def.value;
5829       return true;
5830     }
5831 
5832   return true;
5833 }
5834 
5835 /* Perform any actions needed for dynamic symbols.  */
5836 
5837 static bool
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)5838 elf32_frvfdpic_finish_dynamic_symbol
5839 (bfd *output_bfd ATTRIBUTE_UNUSED,
5840  struct bfd_link_info *info ATTRIBUTE_UNUSED,
5841  struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5842  Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5843 {
5844   return true;
5845 }
5846 
5847 /* Decide whether to attempt to turn absptr or lsda encodings in
5848    shared libraries into pcrel within the given input section.  */
5849 
5850 static bool
frvfdpic_elf_use_relative_eh_frame(bfd * input_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,asection * eh_frame_section ATTRIBUTE_UNUSED)5851 frvfdpic_elf_use_relative_eh_frame
5852 (bfd *input_bfd ATTRIBUTE_UNUSED,
5853  struct bfd_link_info *info ATTRIBUTE_UNUSED,
5854  asection *eh_frame_section ATTRIBUTE_UNUSED)
5855 {
5856   /* We can't use PC-relative encodings in FDPIC binaries, in general.  */
5857   return false;
5858 }
5859 
5860 /* Adjust the contents of an eh_frame_hdr section before they're output.  */
5861 
5862 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)5863 frvfdpic_elf_encode_eh_address (bfd *abfd,
5864 				struct bfd_link_info *info,
5865 				asection *osec, bfd_vma offset,
5866 				asection *loc_sec, bfd_vma loc_offset,
5867 				bfd_vma *encoded)
5868 {
5869   struct elf_link_hash_entry *h;
5870 
5871   h = elf_hash_table (info)->hgot;
5872   BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5873 
5874   if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5875 	      == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5876     return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5877 				       loc_sec, loc_offset, encoded);
5878 
5879   BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5880 	      == (_frvfdpic_osec_to_segment
5881 		  (abfd, h->root.u.def.section->output_section)));
5882 
5883   *encoded = osec->vma + offset
5884     - (h->root.u.def.value
5885        + h->root.u.def.section->output_section->vma
5886        + h->root.u.def.section->output_offset);
5887 
5888   return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5889 }
5890 
5891 /* Look through the relocs for a section during the first phase.
5892 
5893    Besides handling virtual table relocs for gc, we have to deal with
5894    all sorts of PIC-related relocations.  We describe below the
5895    general plan on how to handle such relocations, even though we only
5896    collect information at this point, storing them in hash tables for
5897    perusal of later passes.
5898 
5899    32 relocations are propagated to the linker output when creating
5900    position-independent output.  LO16 and HI16 relocations are not
5901    supposed to be encountered in this case.
5902 
5903    LABEL16 should always be resolvable by the linker, since it's only
5904    used by branches.
5905 
5906    LABEL24, on the other hand, is used by calls.  If it turns out that
5907    the target of a call is a dynamic symbol, a PLT entry must be
5908    created for it, which triggers the creation of a private function
5909    descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5910 
5911    GPREL relocations require the referenced symbol to be in the same
5912    segment as _gp, but this can only be checked later.
5913 
5914    All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5915    exist.  LABEL24 might as well, since it may require a PLT entry,
5916    that will require a got.
5917 
5918    Non-FUNCDESC GOT relocations require a GOT entry to be created
5919    regardless of whether the symbol is dynamic.  However, since a
5920    global symbol that turns out to not be exported may have the same
5921    address of a non-dynamic symbol, we don't assign GOT entries at
5922    this point, such that we can share them in this case.  A relocation
5923    for the GOT entry always has to be created, be it to offset a
5924    private symbol by the section load address, be it to get the symbol
5925    resolved dynamically.
5926 
5927    FUNCDESC GOT relocations require a GOT entry to be created, and
5928    handled as if a FUNCDESC relocation was applied to the GOT entry in
5929    an object file.
5930 
5931    FUNCDESC relocations referencing a symbol that turns out to NOT be
5932    dynamic cause a private function descriptor to be created.  The
5933    FUNCDESC relocation then decays to a 32 relocation that points at
5934    the private descriptor.  If the symbol is dynamic, the FUNCDESC
5935    relocation is propagated to the linker output, such that the
5936    dynamic linker creates the canonical descriptor, pointing to the
5937    dynamically-resolved definition of the function.
5938 
5939    Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5940    symbols that are assigned to the same segment as the GOT, but we
5941    can only check this later, after we know the complete set of
5942    symbols defined and/or exported.
5943 
5944    FUNCDESC GOTOFF relocations require a function descriptor to be
5945    created and, unless lazy binding is disabled or the symbol is not
5946    dynamic, a lazy PLT entry.  Since we can't tell at this point
5947    whether a symbol is going to be dynamic, we have to decide later
5948    whether to create a lazy PLT entry or bind the descriptor directly
5949    to the private function.
5950 
5951    FUNCDESC_VALUE relocations are not supposed to be present in object
5952    files, but they may very well be simply propagated to the linker
5953    output, since they have no side effect.
5954 
5955 
5956    A function descriptor always requires a FUNCDESC_VALUE relocation.
5957    Whether it's in .plt.rel or not depends on whether lazy binding is
5958    enabled and on whether the referenced symbol is dynamic.
5959 
5960    The existence of a lazy PLT requires the resolverStub lazy PLT
5961    entry to be present.
5962 
5963 
5964    As for assignment of GOT, PLT and lazy PLT entries, and private
5965    descriptors, we might do them all sequentially, but we can do
5966    better than that.  For example, we can place GOT entries and
5967    private function descriptors referenced using 12-bit operands
5968    closer to the PIC register value, such that these relocations don't
5969    overflow.  Those that are only referenced with LO16 relocations
5970    could come next, but we may as well place PLT-required function
5971    descriptors in the 12-bit range to make them shorter.  Symbols
5972    referenced with LO16/HI16 may come next, but we may place
5973    additional function descriptors in the 16-bit range if we can
5974    reliably tell that we've already placed entries that are ever
5975    referenced with only LO16.  PLT entries are therefore generated as
5976    small as possible, while not introducing relocation overflows in
5977    GOT or FUNCDESC_GOTOFF relocations.  Lazy PLT entries could be
5978    generated before or after PLT entries, but not intermingled with
5979    them, such that we can have more lazy PLT entries in range for a
5980    branch to the resolverStub.  The resolverStub should be emitted at
5981    the most distant location from the first lazy PLT entry such that
5982    it's still in range for a branch, or closer, if there isn't a need
5983    for so many lazy PLT entries.  Additional lazy PLT entries may be
5984    emitted after the resolverStub, as long as branches are still in
5985    range.  If the branch goes out of range, longer lazy PLT entries
5986    are emitted.
5987 
5988    We could further optimize PLT and lazy PLT entries by giving them
5989    priority in assignment to closer-to-gr17 locations depending on the
5990    number of occurrences of references to them (assuming a function
5991    that's called more often is more important for performance, so its
5992    PLT entry should be faster), or taking hints from the compiler.
5993    Given infinite time and money... :-)  */
5994 
5995 static bool
elf32_frv_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)5996 elf32_frv_check_relocs (bfd *abfd,
5997 			struct bfd_link_info *info,
5998 			asection *sec,
5999 			const Elf_Internal_Rela *relocs)
6000 {
6001   Elf_Internal_Shdr *symtab_hdr;
6002   struct elf_link_hash_entry **sym_hashes;
6003   const Elf_Internal_Rela *rel;
6004   const Elf_Internal_Rela *rel_end;
6005   bfd *dynobj;
6006   struct frvfdpic_relocs_info *picrel;
6007 
6008   if (bfd_link_relocatable (info))
6009     return true;
6010 
6011   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6012   sym_hashes = elf_sym_hashes (abfd);
6013 
6014   dynobj = elf_hash_table (info)->dynobj;
6015   rel_end = relocs + sec->reloc_count;
6016   for (rel = relocs; rel < rel_end; rel++)
6017     {
6018       struct elf_link_hash_entry *h;
6019       unsigned long r_symndx;
6020 
6021       r_symndx = ELF32_R_SYM (rel->r_info);
6022       if (r_symndx < symtab_hdr->sh_info)
6023 	h = NULL;
6024       else
6025 	{
6026 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6027 	  while (h->root.type == bfd_link_hash_indirect
6028 		 || h->root.type == bfd_link_hash_warning)
6029 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
6030 	}
6031 
6032       switch (ELF32_R_TYPE (rel->r_info))
6033 	{
6034 	case R_FRV_GETTLSOFF:
6035 	case R_FRV_TLSDESC_VALUE:
6036 	case R_FRV_GOTTLSDESC12:
6037 	case R_FRV_GOTTLSDESCHI:
6038 	case R_FRV_GOTTLSDESCLO:
6039 	case R_FRV_GOTTLSOFF12:
6040 	case R_FRV_GOTTLSOFFHI:
6041 	case R_FRV_GOTTLSOFFLO:
6042 	case R_FRV_TLSOFF:
6043 	case R_FRV_GOT12:
6044 	case R_FRV_GOTHI:
6045 	case R_FRV_GOTLO:
6046 	case R_FRV_FUNCDESC_GOT12:
6047 	case R_FRV_FUNCDESC_GOTHI:
6048 	case R_FRV_FUNCDESC_GOTLO:
6049 	case R_FRV_GOTOFF12:
6050 	case R_FRV_GOTOFFHI:
6051 	case R_FRV_GOTOFFLO:
6052 	case R_FRV_FUNCDESC_GOTOFF12:
6053 	case R_FRV_FUNCDESC_GOTOFFHI:
6054 	case R_FRV_FUNCDESC_GOTOFFLO:
6055 	case R_FRV_FUNCDESC:
6056 	case R_FRV_FUNCDESC_VALUE:
6057 	case R_FRV_TLSMOFF12:
6058 	case R_FRV_TLSMOFFHI:
6059 	case R_FRV_TLSMOFFLO:
6060 	case R_FRV_TLSMOFF:
6061 	  if (! IS_FDPIC (abfd))
6062 	    goto bad_reloc;
6063 	  /* Fall through.  */
6064 	case R_FRV_GPREL12:
6065 	case R_FRV_GPRELU12:
6066 	case R_FRV_GPRELHI:
6067 	case R_FRV_GPRELLO:
6068 	case R_FRV_LABEL24:
6069 	case R_FRV_32:
6070 	  if (! dynobj)
6071 	    {
6072 	      elf_hash_table (info)->dynobj = dynobj = abfd;
6073 	      if (! _frv_create_got_section (abfd, info))
6074 		return false;
6075 	    }
6076 	  if (! IS_FDPIC (abfd))
6077 	    {
6078 	      picrel = NULL;
6079 	      break;
6080 	    }
6081 	  if (h != NULL)
6082 	    {
6083 	      if (h->dynindx == -1)
6084 		switch (ELF_ST_VISIBILITY (h->other))
6085 		  {
6086 		  case STV_INTERNAL:
6087 		  case STV_HIDDEN:
6088 		    break;
6089 		  default:
6090 		    bfd_elf_link_record_dynamic_symbol (info, h);
6091 		    break;
6092 		  }
6093 	      picrel
6094 		= frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6095 						   abfd, h,
6096 						   rel->r_addend, INSERT);
6097 	    }
6098 	  else
6099 	    picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6100 						     (info), abfd, r_symndx,
6101 						     rel->r_addend, INSERT);
6102 	  if (! picrel)
6103 	    return false;
6104 	  break;
6105 
6106 	default:
6107 	  picrel = NULL;
6108 	  break;
6109 	}
6110 
6111       switch (ELF32_R_TYPE (rel->r_info))
6112 	{
6113 	case R_FRV_LABEL24:
6114 	  if (IS_FDPIC (abfd))
6115 	    picrel->call = 1;
6116 	  break;
6117 
6118 	case R_FRV_FUNCDESC_VALUE:
6119 	  picrel->relocsfdv++;
6120 	  if (bfd_section_flags (sec) & SEC_ALLOC)
6121 	    picrel->relocs32--;
6122 	  /* Fall through.  */
6123 
6124 	case R_FRV_32:
6125 	  if (! IS_FDPIC (abfd))
6126 	    break;
6127 
6128 	  picrel->sym = 1;
6129 	  if (bfd_section_flags (sec) & SEC_ALLOC)
6130 	    picrel->relocs32++;
6131 	  break;
6132 
6133 	case R_FRV_GOT12:
6134 	  picrel->got12 = 1;
6135 	  break;
6136 
6137 	case R_FRV_GOTHI:
6138 	case R_FRV_GOTLO:
6139 	  picrel->gothilo = 1;
6140 	  break;
6141 
6142 	case R_FRV_FUNCDESC_GOT12:
6143 	  picrel->fdgot12 = 1;
6144 	  break;
6145 
6146 	case R_FRV_FUNCDESC_GOTHI:
6147 	case R_FRV_FUNCDESC_GOTLO:
6148 	  picrel->fdgothilo = 1;
6149 	  break;
6150 
6151 	case R_FRV_GOTOFF12:
6152 	case R_FRV_GOTOFFHI:
6153 	case R_FRV_GOTOFFLO:
6154 	  picrel->gotoff = 1;
6155 	  break;
6156 
6157 	case R_FRV_FUNCDESC_GOTOFF12:
6158 	  picrel->fdgoff12 = 1;
6159 	  break;
6160 
6161 	case R_FRV_FUNCDESC_GOTOFFHI:
6162 	case R_FRV_FUNCDESC_GOTOFFLO:
6163 	  picrel->fdgoffhilo = 1;
6164 	  break;
6165 
6166 	case R_FRV_FUNCDESC:
6167 	  picrel->fd = 1;
6168 	  picrel->relocsfd++;
6169 	  break;
6170 
6171 	case R_FRV_GETTLSOFF:
6172 	  picrel->tlsplt = 1;
6173 	  break;
6174 
6175 	case R_FRV_TLSDESC_VALUE:
6176 	  picrel->relocstlsd++;
6177 	  goto bad_reloc;
6178 
6179 	case R_FRV_GOTTLSDESC12:
6180 	  picrel->tlsdesc12 = 1;
6181 	  break;
6182 
6183 	case R_FRV_GOTTLSDESCHI:
6184 	case R_FRV_GOTTLSDESCLO:
6185 	  picrel->tlsdeschilo = 1;
6186 	  break;
6187 
6188 	case R_FRV_TLSMOFF12:
6189 	case R_FRV_TLSMOFFHI:
6190 	case R_FRV_TLSMOFFLO:
6191 	case R_FRV_TLSMOFF:
6192 	  break;
6193 
6194 	case R_FRV_GOTTLSOFF12:
6195 	  picrel->tlsoff12 = 1;
6196 	  info->flags |= DF_STATIC_TLS;
6197 	  break;
6198 
6199 	case R_FRV_GOTTLSOFFHI:
6200 	case R_FRV_GOTTLSOFFLO:
6201 	  picrel->tlsoffhilo = 1;
6202 	  info->flags |= DF_STATIC_TLS;
6203 	  break;
6204 
6205 	case R_FRV_TLSOFF:
6206 	  picrel->relocstlsoff++;
6207 	  info->flags |= DF_STATIC_TLS;
6208 	  goto bad_reloc;
6209 
6210 	/* This relocation describes the C++ object vtable hierarchy.
6211 	   Reconstruct it for later use during GC.  */
6212 	case R_FRV_GNU_VTINHERIT:
6213 	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6214 	    return false;
6215 	  break;
6216 
6217 	/* This relocation describes which C++ vtable entries are actually
6218 	   used.  Record for later use during GC.  */
6219 	case R_FRV_GNU_VTENTRY:
6220 	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6221 	    return false;
6222 	  break;
6223 
6224 	case R_FRV_LABEL16:
6225 	case R_FRV_LO16:
6226 	case R_FRV_HI16:
6227 	case R_FRV_GPREL12:
6228 	case R_FRV_GPRELU12:
6229 	case R_FRV_GPREL32:
6230 	case R_FRV_GPRELHI:
6231 	case R_FRV_GPRELLO:
6232 	case R_FRV_TLSDESC_RELAX:
6233 	case R_FRV_GETTLSOFF_RELAX:
6234 	case R_FRV_TLSOFF_RELAX:
6235 	  break;
6236 
6237 	default:
6238 	bad_reloc:
6239 	  /* xgettext:c-format */
6240 	  _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
6241 			      abfd, (unsigned int) ELF32_R_TYPE (rel->r_info));
6242 	  return false;
6243 	}
6244     }
6245 
6246   return true;
6247 }
6248 
6249 
6250 /* Return the machine subcode from the ELF e_flags header.  */
6251 
6252 static int
elf32_frv_machine(bfd * abfd)6253 elf32_frv_machine (bfd *abfd)
6254 {
6255   switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6256     {
6257     default:		    break;
6258     case EF_FRV_CPU_FR550:  return bfd_mach_fr550;
6259     case EF_FRV_CPU_FR500:  return bfd_mach_fr500;
6260     case EF_FRV_CPU_FR450:  return bfd_mach_fr450;
6261     case EF_FRV_CPU_FR405:  return bfd_mach_fr400;
6262     case EF_FRV_CPU_FR400:  return bfd_mach_fr400;
6263     case EF_FRV_CPU_FR300:  return bfd_mach_fr300;
6264     case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6265     case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6266     }
6267 
6268   return bfd_mach_frv;
6269 }
6270 
6271 /* Set the right machine number for a FRV ELF file.  */
6272 
6273 static bool
elf32_frv_object_p(bfd * abfd)6274 elf32_frv_object_p (bfd *abfd)
6275 {
6276   bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6277   return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6278 	  == (IS_FDPIC (abfd)));
6279 }
6280 
6281 /* Function to set the ELF flag bits.  */
6282 
6283 static bool
frv_elf_set_private_flags(bfd * abfd,flagword flags)6284 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6285 {
6286   elf_elfheader (abfd)->e_flags = flags;
6287   elf_flags_init (abfd) = true;
6288   return true;
6289 }
6290 
6291 /* Return true if the architecture described by elf header flag
6292    EXTENSION is an extension of the architecture described by BASE.  */
6293 
6294 static bool
frv_elf_arch_extension_p(flagword base,flagword extension)6295 frv_elf_arch_extension_p (flagword base, flagword extension)
6296 {
6297   if (base == extension)
6298     return true;
6299 
6300   /* CPU_GENERIC code can be merged with code for a specific
6301      architecture, in which case the result is marked as being
6302      for the specific architecture.  Everything is therefore
6303      an extension of CPU_GENERIC.  */
6304   if (base == EF_FRV_CPU_GENERIC)
6305     return true;
6306 
6307   if (extension == EF_FRV_CPU_FR450)
6308     if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6309       return true;
6310 
6311   if (extension == EF_FRV_CPU_FR405)
6312     if (base == EF_FRV_CPU_FR400)
6313       return true;
6314 
6315   return false;
6316 }
6317 
6318 /* Merge backend specific data from an object file to the output
6319    object file when linking.  */
6320 
6321 static bool
frv_elf_merge_private_bfd_data(bfd * ibfd,struct bfd_link_info * info)6322 frv_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
6323 {
6324   bfd *obfd = info->output_bfd;
6325   flagword old_flags, old_partial;
6326   flagword new_flags, new_partial;
6327   bool error = false;
6328   char new_opt[80];
6329   char old_opt[80];
6330 
6331   /* FIXME: What should be checked when linking shared libraries?  */
6332   if ((ibfd->flags & DYNAMIC) != 0)
6333     return true;
6334 
6335   new_opt[0] = old_opt[0] = '\0';
6336   new_flags = elf_elfheader (ibfd)->e_flags;
6337   old_flags = elf_elfheader (obfd)->e_flags;
6338 
6339   if (new_flags & EF_FRV_FDPIC)
6340     new_flags &= ~EF_FRV_PIC;
6341 
6342 #ifdef DEBUG
6343   _bfd_error_handler
6344     ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %s",
6345      old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6346      bfd_get_filename (ibfd));
6347 #endif
6348 
6349   if (!elf_flags_init (obfd))			/* First call, no flags set.  */
6350     {
6351       elf_flags_init (obfd) = true;
6352       old_flags = new_flags;
6353     }
6354 
6355   else if (new_flags == old_flags)		/* Compatible flags are ok.  */
6356     ;
6357 
6358   else						/* Possibly incompatible flags.  */
6359     {
6360       /* Warn if different # of gprs are used.  Note, 0 means nothing is
6361 	 said about the size of gprs.  */
6362       new_partial = (new_flags & EF_FRV_GPR_MASK);
6363       old_partial = (old_flags & EF_FRV_GPR_MASK);
6364       if (new_partial == old_partial)
6365 	;
6366 
6367       else if (new_partial == 0)
6368 	;
6369 
6370       else if (old_partial == 0)
6371 	old_flags |= new_partial;
6372 
6373       else
6374 	{
6375 	  switch (new_partial)
6376 	    {
6377 	    default:		strcat (new_opt, " -mgpr-??"); break;
6378 	    case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6379 	    case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6380 	    }
6381 
6382 	  switch (old_partial)
6383 	    {
6384 	    default:		strcat (old_opt, " -mgpr-??"); break;
6385 	    case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6386 	    case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6387 	    }
6388 	}
6389 
6390       /* Warn if different # of fprs are used.  Note, 0 means nothing is
6391 	 said about the size of fprs.  */
6392       new_partial = (new_flags & EF_FRV_FPR_MASK);
6393       old_partial = (old_flags & EF_FRV_FPR_MASK);
6394       if (new_partial == old_partial)
6395 	;
6396 
6397       else if (new_partial == 0)
6398 	;
6399 
6400       else if (old_partial == 0)
6401 	old_flags |= new_partial;
6402 
6403       else
6404 	{
6405 	  switch (new_partial)
6406 	    {
6407 	    default:		  strcat (new_opt, " -mfpr-?");      break;
6408 	    case EF_FRV_FPR_32:   strcat (new_opt, " -mfpr-32");     break;
6409 	    case EF_FRV_FPR_64:   strcat (new_opt, " -mfpr-64");     break;
6410 	    case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6411 	    }
6412 
6413 	  switch (old_partial)
6414 	    {
6415 	    default:		  strcat (old_opt, " -mfpr-?");      break;
6416 	    case EF_FRV_FPR_32:   strcat (old_opt, " -mfpr-32");     break;
6417 	    case EF_FRV_FPR_64:   strcat (old_opt, " -mfpr-64");     break;
6418 	    case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6419 	    }
6420 	}
6421 
6422       /* Warn if different dword support was used.  Note, 0 means nothing is
6423 	 said about the dword support.  */
6424       new_partial = (new_flags & EF_FRV_DWORD_MASK);
6425       old_partial = (old_flags & EF_FRV_DWORD_MASK);
6426       if (new_partial == old_partial)
6427 	;
6428 
6429       else if (new_partial == 0)
6430 	;
6431 
6432       else if (old_partial == 0)
6433 	old_flags |= new_partial;
6434 
6435       else
6436 	{
6437 	  switch (new_partial)
6438 	    {
6439 	    default:		   strcat (new_opt, " -mdword-?");  break;
6440 	    case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword");    break;
6441 	    case EF_FRV_DWORD_NO:  strcat (new_opt, " -mno-dword"); break;
6442 	    }
6443 
6444 	  switch (old_partial)
6445 	    {
6446 	    default:		   strcat (old_opt, " -mdword-?");  break;
6447 	    case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword");    break;
6448 	    case EF_FRV_DWORD_NO:  strcat (old_opt, " -mno-dword"); break;
6449 	    }
6450 	}
6451 
6452       /* Or in flags that accumulate (ie, if one module uses it, mark that the
6453 	 feature is used.  */
6454       old_flags |= new_flags & (EF_FRV_DOUBLE
6455 				| EF_FRV_MEDIA
6456 				| EF_FRV_MULADD
6457 				| EF_FRV_NON_PIC_RELOCS);
6458 
6459       /* If any module was compiled without -G0, clear the G0 bit.  */
6460       old_flags = ((old_flags & ~ EF_FRV_G0)
6461 		   | (old_flags & new_flags & EF_FRV_G0));
6462 
6463       /* If any module was compiled without -mnopack, clear the mnopack bit.  */
6464       old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6465 		   | (old_flags & new_flags & EF_FRV_NOPACK));
6466 
6467       /* We don't have to do anything if the pic flags are the same, or the new
6468 	 module(s) were compiled with -mlibrary-pic.  */
6469       new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6470       old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6471       if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6472 	;
6473 
6474       /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6475 	 flags if any from the new module.  */
6476       else if ((old_partial & EF_FRV_LIBPIC) != 0)
6477 	old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6478 
6479       /* If we have mixtures of -fpic and -fPIC, or in both bits.  */
6480       else if (new_partial != 0 && old_partial != 0)
6481 	old_flags |= new_partial;
6482 
6483       /* One module was compiled for pic and the other was not, see if we have
6484 	 had any relocations that are not pic-safe.  */
6485       else
6486 	{
6487 	  if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6488 	    old_flags |= new_partial;
6489 	  else
6490 	    {
6491 	      old_flags &= ~ EF_FRV_PIC_FLAGS;
6492 #ifndef FRV_NO_PIC_ERROR
6493 	      error = true;
6494 	      _bfd_error_handler
6495 		/* xgettext:c-format */
6496 		(_("%pB: compiled with %s and linked with modules"
6497 		   " that use non-pic relocations"),
6498 		 ibfd, (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6499 #endif
6500 	    }
6501 	}
6502 
6503       /* Warn if different cpu is used (allow a specific cpu to override
6504 	 the generic cpu).  */
6505       new_partial = (new_flags & EF_FRV_CPU_MASK);
6506       old_partial = (old_flags & EF_FRV_CPU_MASK);
6507       if (frv_elf_arch_extension_p (new_partial, old_partial))
6508 	;
6509 
6510       else if (frv_elf_arch_extension_p (old_partial, new_partial))
6511 	old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6512 
6513       else
6514 	{
6515 	  switch (new_partial)
6516 	    {
6517 	    default:		     strcat (new_opt, " -mcpu=?");      break;
6518 	    case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv");    break;
6519 	    case EF_FRV_CPU_SIMPLE:  strcat (new_opt, " -mcpu=simple"); break;
6520 	    case EF_FRV_CPU_FR550:   strcat (new_opt, " -mcpu=fr550");  break;
6521 	    case EF_FRV_CPU_FR500:   strcat (new_opt, " -mcpu=fr500");  break;
6522 	    case EF_FRV_CPU_FR450:   strcat (new_opt, " -mcpu=fr450");  break;
6523 	    case EF_FRV_CPU_FR405:   strcat (new_opt, " -mcpu=fr405");  break;
6524 	    case EF_FRV_CPU_FR400:   strcat (new_opt, " -mcpu=fr400");  break;
6525 	    case EF_FRV_CPU_FR300:   strcat (new_opt, " -mcpu=fr300");  break;
6526 	    case EF_FRV_CPU_TOMCAT:  strcat (new_opt, " -mcpu=tomcat"); break;
6527 	    }
6528 
6529 	  switch (old_partial)
6530 	    {
6531 	    default:		     strcat (old_opt, " -mcpu=?");      break;
6532 	    case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv");    break;
6533 	    case EF_FRV_CPU_SIMPLE:  strcat (old_opt, " -mcpu=simple"); break;
6534 	    case EF_FRV_CPU_FR550:   strcat (old_opt, " -mcpu=fr550");  break;
6535 	    case EF_FRV_CPU_FR500:   strcat (old_opt, " -mcpu=fr500");  break;
6536 	    case EF_FRV_CPU_FR450:   strcat (old_opt, " -mcpu=fr450");  break;
6537 	    case EF_FRV_CPU_FR405:   strcat (old_opt, " -mcpu=fr405");  break;
6538 	    case EF_FRV_CPU_FR400:   strcat (old_opt, " -mcpu=fr400");  break;
6539 	    case EF_FRV_CPU_FR300:   strcat (old_opt, " -mcpu=fr300");  break;
6540 	    case EF_FRV_CPU_TOMCAT:  strcat (old_opt, " -mcpu=tomcat"); break;
6541 	    }
6542 	}
6543 
6544       /* Print out any mismatches from above.  */
6545       if (new_opt[0])
6546 	{
6547 	  error = true;
6548 	  _bfd_error_handler
6549 	    /* xgettext:c-format */
6550 	    (_("%pB: compiled with %s and linked with modules compiled with %s"),
6551 	     ibfd, new_opt, old_opt);
6552 	}
6553 
6554       /* Warn about any other mismatches */
6555       new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6556       old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6557       if (new_partial != old_partial)
6558 	{
6559 	  old_flags |= new_partial;
6560 	  error = true;
6561 	  _bfd_error_handler
6562 	    /* xgettext:c-format */
6563 	    (_("%pB: uses different unknown e_flags (%#x) fields"
6564 	       " than previous modules (%#x)"),
6565 	     ibfd, new_partial, old_partial);
6566 	}
6567     }
6568 
6569   /* If the cpu is -mcpu=simple, then set the -mnopack bit.  */
6570   if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6571     old_flags |= EF_FRV_NOPACK;
6572 
6573   /* Update the old flags now with changes made above.  */
6574   old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6575   elf_elfheader (obfd)->e_flags = old_flags;
6576   if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6577     bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6578 
6579   if (((new_flags & EF_FRV_FDPIC) == 0)
6580       != (! IS_FDPIC (ibfd)))
6581     {
6582       error = true;
6583       if (IS_FDPIC (obfd))
6584 	_bfd_error_handler
6585 	  (_("%pB: cannot link non-fdpic object file into fdpic executable"),
6586 	   ibfd);
6587       else
6588 	_bfd_error_handler
6589 	  (_("%pB: cannot link fdpic object file into non-fdpic executable"),
6590 	   ibfd);
6591     }
6592 
6593   if (error)
6594     bfd_set_error (bfd_error_bad_value);
6595 
6596   return !error;
6597 }
6598 
6599 
6600 static bool
frv_elf_print_private_bfd_data(bfd * abfd,void * ptr)6601 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6602 {
6603   FILE *file = (FILE *) ptr;
6604   flagword flags;
6605 
6606   BFD_ASSERT (abfd != NULL && ptr != NULL);
6607 
6608   /* Print normal ELF private data.  */
6609   _bfd_elf_print_private_bfd_data (abfd, ptr);
6610 
6611   flags = elf_elfheader (abfd)->e_flags;
6612   fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6613 
6614   switch (flags & EF_FRV_CPU_MASK)
6615     {
6616     default:							break;
6617     case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple");	break;
6618     case EF_FRV_CPU_FR550:  fprintf (file, " -mcpu=fr550");	break;
6619     case EF_FRV_CPU_FR500:  fprintf (file, " -mcpu=fr500");	break;
6620     case EF_FRV_CPU_FR450:  fprintf (file, " -mcpu=fr450");	break;
6621     case EF_FRV_CPU_FR405:  fprintf (file, " -mcpu=fr405");	break;
6622     case EF_FRV_CPU_FR400:  fprintf (file, " -mcpu=fr400");	break;
6623     case EF_FRV_CPU_FR300:  fprintf (file, " -mcpu=fr300");	break;
6624     case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat");	break;
6625     }
6626 
6627   switch (flags & EF_FRV_GPR_MASK)
6628     {
6629     default:							break;
6630     case EF_FRV_GPR_32: fprintf (file, " -mgpr-32");		break;
6631     case EF_FRV_GPR_64: fprintf (file, " -mgpr-64");		break;
6632     }
6633 
6634   switch (flags & EF_FRV_FPR_MASK)
6635     {
6636     default:							break;
6637     case EF_FRV_FPR_32:   fprintf (file, " -mfpr-32");		break;
6638     case EF_FRV_FPR_64:   fprintf (file, " -mfpr-64");		break;
6639     case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float");	break;
6640     }
6641 
6642   switch (flags & EF_FRV_DWORD_MASK)
6643     {
6644     default:							break;
6645     case EF_FRV_DWORD_YES: fprintf (file, " -mdword");		break;
6646     case EF_FRV_DWORD_NO:  fprintf (file, " -mno-dword");	break;
6647     }
6648 
6649   if (flags & EF_FRV_DOUBLE)
6650     fprintf (file, " -mdouble");
6651 
6652   if (flags & EF_FRV_MEDIA)
6653     fprintf (file, " -mmedia");
6654 
6655   if (flags & EF_FRV_MULADD)
6656     fprintf (file, " -mmuladd");
6657 
6658   if (flags & EF_FRV_PIC)
6659     fprintf (file, " -fpic");
6660 
6661   if (flags & EF_FRV_BIGPIC)
6662     fprintf (file, " -fPIC");
6663 
6664   if (flags & EF_FRV_LIBPIC)
6665     fprintf (file, " -mlibrary-pic");
6666 
6667   if (flags & EF_FRV_FDPIC)
6668     fprintf (file, " -mfdpic");
6669 
6670   if (flags & EF_FRV_NON_PIC_RELOCS)
6671     fprintf (file, " non-pic relocations");
6672 
6673   if (flags & EF_FRV_G0)
6674     fprintf (file, " -G0");
6675 
6676   fputc ('\n', file);
6677   return true;
6678 }
6679 
6680 
6681 /* Support for core dump NOTE sections.  */
6682 
6683 static bool
elf32_frv_grok_prstatus(bfd * abfd,Elf_Internal_Note * note)6684 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6685 {
6686   int offset;
6687   unsigned int raw_size;
6688 
6689   switch (note->descsz)
6690     {
6691       default:
6692 	return false;
6693 
6694       /* The Linux/FRV elf_prstatus struct is 268 bytes long.  The other
6695 	 hardcoded offsets and sizes listed below (and contained within
6696 	 this lexical block) refer to fields in the target's elf_prstatus
6697 	 struct.  */
6698       case 268:
6699 	/* `pr_cursig' is at offset 12.  */
6700 	elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6701 
6702 	/* `pr_pid' is at offset 24.  */
6703 	elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6704 
6705 	/* `pr_reg' is at offset 72.  */
6706 	offset = 72;
6707 
6708 	/* Most grok_prstatus implementations set `raw_size' to the size
6709 	   of the pr_reg field.  For Linux/FRV, we set `raw_size' to be
6710 	   the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6711 	   and `pr_interp_fdpic_loadmap', both of which (by design)
6712 	   immediately follow `pr_reg'.  This will allow these fields to
6713 	   be viewed by GDB as registers.
6714 
6715 	   `pr_reg' is 184 bytes long.  `pr_exec_fdpic_loadmap' and
6716 	   `pr_interp_fdpic_loadmap' are 4 bytes each.  */
6717 	raw_size = 184 + 4 + 4;
6718 
6719 	break;
6720     }
6721 
6722   /* Make a ".reg/999" section.  */
6723   return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6724 					  note->descpos + offset);
6725 }
6726 
6727 static bool
elf32_frv_grok_psinfo(bfd * abfd,Elf_Internal_Note * note)6728 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6729 {
6730   switch (note->descsz)
6731     {
6732       default:
6733 	return false;
6734 
6735       /* The Linux/FRV elf_prpsinfo struct is 124 bytes long.  */
6736       case 124:
6737 
6738 	/* `pr_fname' is found at offset 28 and is 16 bytes long.  */
6739 	elf_tdata (abfd)->core->program
6740 	  = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6741 
6742 	/* `pr_psargs' is found at offset 44 and is 80 bytes long.  */
6743 	elf_tdata (abfd)->core->command
6744 	  = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6745     }
6746 
6747   /* Note that for some reason, a spurious space is tacked
6748      onto the end of the args in some (at least one anyway)
6749      implementations, so strip it off if it exists.  */
6750 
6751   {
6752     char *command = elf_tdata (abfd)->core->command;
6753     int n = strlen (command);
6754 
6755     if (0 < n && command[n - 1] == ' ')
6756       command[n - 1] = '\0';
6757   }
6758 
6759   return true;
6760 }
6761 #define ELF_ARCH		bfd_arch_frv
6762 #define ELF_MACHINE_CODE	EM_CYGNUS_FRV
6763 #define ELF_MAXPAGESIZE		0x1000
6764 
6765 #define TARGET_BIG_SYM		frv_elf32_vec
6766 #define TARGET_BIG_NAME		"elf32-frv"
6767 
6768 #define elf_info_to_howto			frv_info_to_howto_rela
6769 #define elf_backend_relocate_section		elf32_frv_relocate_section
6770 #define elf_backend_gc_mark_hook		elf32_frv_gc_mark_hook
6771 #define elf_backend_check_relocs		elf32_frv_check_relocs
6772 #define elf_backend_object_p			elf32_frv_object_p
6773 #define elf_backend_add_symbol_hook		elf32_frv_add_symbol_hook
6774 
6775 #define elf_backend_stack_align			8
6776 #define elf_backend_can_gc_sections		1
6777 #define elf_backend_rela_normal			1
6778 
6779 #define bfd_elf32_bfd_reloc_type_lookup		frv_reloc_type_lookup
6780 #define bfd_elf32_bfd_reloc_name_lookup	frv_reloc_name_lookup
6781 #define bfd_elf32_bfd_set_private_flags		frv_elf_set_private_flags
6782 #define bfd_elf32_bfd_merge_private_bfd_data	frv_elf_merge_private_bfd_data
6783 #define bfd_elf32_bfd_print_private_bfd_data	frv_elf_print_private_bfd_data
6784 
6785 #define elf_backend_want_got_sym	1
6786 #define elf_backend_got_header_size	0
6787 #define elf_backend_want_got_plt	0
6788 #define elf_backend_plt_readonly	1
6789 #define elf_backend_want_plt_sym	0
6790 #define elf_backend_plt_header_size	0
6791 
6792 #define elf_backend_finish_dynamic_sections \
6793 		elf32_frv_finish_dynamic_sections
6794 
6795 #define elf_backend_grok_prstatus	elf32_frv_grok_prstatus
6796 #define elf_backend_grok_psinfo		elf32_frv_grok_psinfo
6797 
6798 #define elf_backend_linux_prpsinfo32_ugid16	true
6799 
6800 #include "elf32-target.h"
6801 
6802 #undef ELF_TARGET_ID
6803 #define ELF_TARGET_ID		FRV_ELF_DATA
6804 #undef ELF_MAXPAGESIZE
6805 #define ELF_MAXPAGESIZE		0x4000
6806 
6807 #undef TARGET_BIG_SYM
6808 #define TARGET_BIG_SYM		frv_elf32_fdpic_vec
6809 #undef TARGET_BIG_NAME
6810 #define TARGET_BIG_NAME		"elf32-frvfdpic"
6811 #undef	elf32_bed
6812 #define	elf32_bed		elf32_frvfdpic_bed
6813 
6814 #undef elf_info_to_howto_rel
6815 #define elf_info_to_howto_rel	frvfdpic_info_to_howto_rel
6816 
6817 #undef bfd_elf32_bfd_link_hash_table_create
6818 #define bfd_elf32_bfd_link_hash_table_create \
6819 		frvfdpic_elf_link_hash_table_create
6820 #undef elf_backend_always_size_sections
6821 #define elf_backend_always_size_sections \
6822 		elf32_frvfdpic_always_size_sections
6823 
6824 #undef elf_backend_create_dynamic_sections
6825 #define elf_backend_create_dynamic_sections \
6826 		elf32_frvfdpic_create_dynamic_sections
6827 #undef elf_backend_adjust_dynamic_symbol
6828 #define elf_backend_adjust_dynamic_symbol \
6829 		elf32_frvfdpic_adjust_dynamic_symbol
6830 #undef elf_backend_size_dynamic_sections
6831 #define elf_backend_size_dynamic_sections \
6832 		elf32_frvfdpic_size_dynamic_sections
6833 #undef bfd_elf32_bfd_relax_section
6834 #define bfd_elf32_bfd_relax_section \
6835   elf32_frvfdpic_relax_section
6836 #undef elf_backend_finish_dynamic_symbol
6837 #define elf_backend_finish_dynamic_symbol \
6838 		elf32_frvfdpic_finish_dynamic_symbol
6839 #undef elf_backend_finish_dynamic_sections
6840 #define elf_backend_finish_dynamic_sections \
6841 		elf32_frvfdpic_finish_dynamic_sections
6842 
6843 #undef elf_backend_discard_info
6844 #define elf_backend_discard_info \
6845 		frvfdpic_elf_discard_info
6846 #undef elf_backend_can_make_relative_eh_frame
6847 #define elf_backend_can_make_relative_eh_frame \
6848 		frvfdpic_elf_use_relative_eh_frame
6849 #undef elf_backend_can_make_lsda_relative_eh_frame
6850 #define elf_backend_can_make_lsda_relative_eh_frame \
6851 		frvfdpic_elf_use_relative_eh_frame
6852 #undef elf_backend_encode_eh_address
6853 #define elf_backend_encode_eh_address \
6854 		frvfdpic_elf_encode_eh_address
6855 
6856 #undef elf_backend_may_use_rel_p
6857 #define elf_backend_may_use_rel_p	1
6858 #undef elf_backend_may_use_rela_p
6859 #define elf_backend_may_use_rela_p	1
6860 /* We use REL for dynamic relocations only.  */
6861 #undef elf_backend_default_use_rela_p
6862 #define elf_backend_default_use_rela_p	1
6863 
6864 #undef elf_backend_omit_section_dynsym
6865 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6866 
6867 #include "elf32-target.h"
6868