1 /* Meta support for 32-bit ELF
2 Copyright (C) 2013-2018 Free Software Foundation, Inc.
3 Contributed by Imagination Technologies Ltd.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
26 #include "elf32-metag.h"
27 #include "elf/metag.h"
29 #define GOT_ENTRY_SIZE 4
30 #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
34 1 - with GOT offset */
35 #define METAG_ELF_ABI_VERSION 1
37 static const unsigned int plt0_entry[] =
39 0x02000005, /* MOVT D0Re0, #HI(GOT+4) */
40 0x02000000, /* ADD D0Re0, D0Re0, #LO(GOT+4) */
41 0xb70001e3, /* SETL [A0StP++], D0Re0, D1Re0 */
42 0xc600012a, /* GETD PC, [D0Re0+#4] */
46 static const unsigned int plt0_pic_entry[] =
48 0x82900001, /* ADDT A0.2, CPC0, #0 */
49 0x82100000, /* ADD A0.2, A0.2, #0 */
50 0xa3100c20, /* MOV D0Re0, A0.2 */
51 0xb70001e3, /* SETL [A0StP++], D0Re0, D1Re0 */
52 0xc600012a, /* GETD PC, [D0Re0+#4] */
55 static const unsigned int plt_entry[] =
57 0x82100005, /* MOVT A0.2, #HI(GOT+off) */
58 0x82100000, /* ADD A0.2, A0.2, #LO(GOT+off) */
59 0xc600806a, /* GETD PC, [A0.2] */
60 0x03000004, /* MOV D1Re0, #LO(offset) */
61 0xa0000000 /* B PLT0 */
64 static const unsigned int plt_pic_entry[] =
66 0x82900001, /* ADDT A0.2, CPC0, #HI(GOT+off) */
67 0x82100000, /* ADD A0.2, A0.2, #LO(GOT+off) */
68 0xc600806a, /* GETD PC, [A0.2] */
69 0x03000004, /* MOV D1Re0, #LO(offset) */
70 0xa0000000 /* B PLT0 */
73 /* Variable names follow a coding style.
74 Please follow this (Apps Hungarian) style:
76 Structure/Variable Prefix
77 elf_link_hash_table "etab"
78 elf_link_hash_entry "eh"
80 elf_metag_link_hash_table "htab"
81 elf_metag_link_hash_entry "hh"
83 bfd_link_hash_table "btab"
84 bfd_link_hash_entry "bh"
86 bfd_hash_table containing stubs "bstab"
87 elf_metag_stub_hash_entry "hsh"
89 Always remember to use GNU Coding Style. */
91 #define PLT_ENTRY_SIZE sizeof(plt_entry)
93 static reloc_howto_type elf_metag_howto_table[] =
95 /* High order 16 bit absolute. */
96 HOWTO (R_METAG_HIADDR16, /* type */
98 2, /* size (0 = byte, 1 = short, 2 = long) */
100 FALSE, /* pc_relative */
102 complain_overflow_dont, /* complain_on_overflow */
103 bfd_elf_generic_reloc, /* special_function */
104 "R_METAG_HIADDR16", /* name */
105 FALSE, /* partial_inplace */
107 0x0007fff8, /* dst_mask */
108 FALSE), /* pcrel_offset */
110 /* Low order 16 bit absolute. */
111 HOWTO (R_METAG_LOADDR16, /* type */
113 2, /* size (0 = byte, 1 = short, 2 = long) */
115 FALSE, /* pc_relative */
117 complain_overflow_dont,/* complain_on_overflow */
118 bfd_elf_generic_reloc, /* special_function */
119 "R_METAG_LOADDR16", /* name */
120 FALSE, /* partial_inplace */
122 0x0007fff8, /* dst_mask */
123 FALSE), /* pcrel_offset */
125 /* 32 bit absolute. */
126 HOWTO (R_METAG_ADDR32, /* type */
128 2, /* size (0 = byte, 1 = short, 2 = long) */
130 FALSE, /* pc_relative */
132 complain_overflow_bitfield, /* complain_on_overflow */
133 bfd_elf_generic_reloc, /* special_function */
134 "R_METAG_ADDR32", /* name */
135 FALSE, /* partial_inplace */
136 0x00000000, /* src_mask */
137 0xffffffff, /* dst_mask */
138 FALSE), /* pcrel_offset */
141 HOWTO (R_METAG_NONE, /* type */
143 3, /* size (0 = byte, 1 = short, 2 = long) */
145 FALSE, /* pc_relative */
147 complain_overflow_dont, /* complain_on_overflow */
148 bfd_elf_generic_reloc, /* special_function */
149 "R_METAG_NONE", /* name */
150 FALSE, /* partial_inplace */
153 FALSE), /* pcrel_offset */
155 /* 19 bit pc relative */
156 HOWTO (R_METAG_RELBRANCH, /* type */
158 2, /* size (0 = byte, 1 = short, 2 = long) */
160 TRUE, /* pc_relative */
162 complain_overflow_signed, /* complain_on_overflow */
163 bfd_elf_generic_reloc, /* special_function */
164 "R_METAG_RELBRANCH", /* name */
165 FALSE, /* partial_inplace */
167 0x00ffffe0, /* dst_mask */
168 FALSE), /* pcrel_offset */
171 HOWTO (R_METAG_GETSETOFF, /* type */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
175 FALSE, /* pc_relative */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_METAG_GETSETOFF", /* name */
180 FALSE, /* partial_inplace */
183 FALSE), /* pcrel_offset */
210 HOWTO (R_METAG_GNU_VTINHERIT, /* type */
212 2, /* size (0 = byte, 1 = short, 2 = long) */
214 FALSE, /* pc_relative */
216 complain_overflow_dont, /* complain_on_overflow */
217 NULL, /* special_function */
218 "R_METAG_GNU_VTINHERIT", /* name */
219 FALSE, /* partial_inplace */
222 FALSE), /* pcrel_offset */
224 HOWTO (R_METAG_GNU_VTENTRY, /* type */
226 2, /* size (0 = byte, 1 = short, 2 = long) */
228 FALSE, /* pc_relative */
230 complain_overflow_dont, /* complain_on_overflow */
231 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
232 "R_METAG_GNU_VTENTRY", /* name */
233 FALSE, /* partial_inplace */
236 FALSE), /* pcrel_offset */
238 /* High order 16 bit GOT offset */
239 HOWTO (R_METAG_HI16_GOTOFF, /* type */
241 2, /* size (0 = byte, 1 = short, 2 = long) */
243 FALSE, /* pc_relative */
245 complain_overflow_dont, /* complain_on_overflow */
246 bfd_elf_generic_reloc, /* special_function */
247 "R_METAG_HI16_GOTOFF", /* name */
248 FALSE, /* partial_inplace */
250 0x0007fff8, /* dst_mask */
251 FALSE), /* pcrel_offset */
253 /* Low order 16 bit GOT offset */
254 HOWTO (R_METAG_LO16_GOTOFF, /* type */
256 2, /* size (0 = byte, 1 = short, 2 = long) */
258 FALSE, /* pc_relative */
260 complain_overflow_dont, /* complain_on_overflow */
261 bfd_elf_generic_reloc, /* special_function */
262 "R_METAG_LO16_GOTOFF", /* name */
263 FALSE, /* partial_inplace */
265 0x0007fff8, /* dst_mask */
266 FALSE), /* pcrel_offset */
268 /* GET/SET GOT offset */
269 HOWTO (R_METAG_GETSET_GOTOFF, /* type */
271 1, /* size (0 = byte, 1 = short, 2 = long) */
273 FALSE, /* pc_relative */
275 complain_overflow_dont, /* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_METAG_GETSET_GOTOFF", /* name */
278 FALSE, /* partial_inplace */
281 FALSE), /* pcrel_offset */
283 /* GET/SET GOT relative */
284 HOWTO (R_METAG_GETSET_GOT, /* type */
286 1, /* size (0 = byte, 1 = short, 2 = long) */
288 FALSE, /* pc_relative */
290 complain_overflow_dont, /* complain_on_overflow */
291 bfd_elf_generic_reloc, /* special_function */
292 "R_METAG_GETSET_GOT", /* name */
293 FALSE, /* partial_inplace */
296 FALSE), /* pcrel_offset */
298 /* High order 16 bit GOT reference */
299 HOWTO (R_METAG_HI16_GOTPC, /* type */
301 2, /* size (0 = byte, 1 = short, 2 = long) */
303 FALSE, /* pc_relative */
305 complain_overflow_dont, /* complain_on_overflow */
306 bfd_elf_generic_reloc, /* special_function */
307 "R_METAG_HI16_GOTPC", /* name */
308 FALSE, /* partial_inplace */
310 0x0007fff8, /* dst_mask */
311 FALSE), /* pcrel_offset */
313 /* Low order 16 bit GOT reference */
314 HOWTO (R_METAG_LO16_GOTPC, /* type */
316 2, /* size (0 = byte, 1 = short, 2 = long) */
318 FALSE, /* pc_relative */
320 complain_overflow_dont, /* complain_on_overflow */
321 bfd_elf_generic_reloc, /* special_function */
322 "R_METAG_LO16_GOTPC", /* name */
323 FALSE, /* partial_inplace */
325 0x0007fff8, /* dst_mask */
326 FALSE), /* pcrel_offset */
328 /* High order 16 bit PLT */
329 HOWTO (R_METAG_HI16_PLT, /* type */
331 2, /* size (0 = byte, 1 = short, 2 = long) */
333 FALSE, /* pc_relative */
335 complain_overflow_dont, /* complain_on_overflow */
336 bfd_elf_generic_reloc, /* special_function */
337 "R_METAG_HI16_PLT", /* name */
338 FALSE, /* partial_inplace */
340 0x0007fff8, /* dst_mask */
341 FALSE), /* pcrel_offset */
343 /* Low order 16 bit PLT */
344 HOWTO (R_METAG_LO16_PLT, /* type */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
348 FALSE, /* pc_relative */
350 complain_overflow_dont, /* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_METAG_LO16_PLT", /* name */
353 FALSE, /* partial_inplace */
355 0xffffffff, /* dst_mask */
356 FALSE), /* pcrel_offset */
358 HOWTO (R_METAG_RELBRANCH_PLT, /* type */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
362 TRUE, /* pc_relative */
364 complain_overflow_signed, /* complain_on_overflow */
365 bfd_elf_generic_reloc, /* special_function */
366 "R_METAG_RELBRANCH_PLT", /* name */
367 FALSE, /* partial_inplace */
369 0x00ffffe0, /* dst_mask */
370 FALSE), /* pcrel_offset */
372 /* Dummy relocs used by the linker internally. */
373 HOWTO (R_METAG_GOTOFF, /* type */
375 2, /* size (0 = byte, 1 = short, 2 = long) */
377 FALSE, /* pc_relative */
379 complain_overflow_bitfield, /* complain_on_overflow */
380 bfd_elf_generic_reloc, /* special_function */
381 "R_METAG_GOTOFF", /* name */
382 FALSE, /* partial_inplace */
383 0xffffffff, /* src_mask */
384 0xffffffff, /* dst_mask */
385 FALSE), /* pcrel_offset */
387 HOWTO (R_METAG_PLT, /* type */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
391 FALSE, /* pc_relative */
393 complain_overflow_bitfield, /* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_METAG_GOTOFF", /* name */
396 FALSE, /* partial_inplace */
397 0xffffffff, /* src_mask */
398 0xffffffff, /* dst_mask */
399 FALSE), /* pcrel_offset */
401 /* This is used only by the dynamic linker. The symbol should exist
402 both in the object being run and in some shared library. The
403 dynamic linker copies the data addressed by the symbol from the
404 shared library into the object, because the object being
405 run has to have the data at some particular address. */
406 HOWTO (R_METAG_COPY, /* type */
408 2, /* size (0 = byte, 1 = short, 2 = long) */
410 FALSE, /* pc_relative */
412 complain_overflow_bitfield, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_METAG_COPY", /* name */
415 FALSE, /* partial_inplace */
416 0xffffffff, /* src_mask */
417 0xffffffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
420 /* Marks a procedure linkage table entry for a symbol. */
421 HOWTO (R_METAG_JMP_SLOT, /* type */
423 2, /* size (0 = byte, 1 = short, 2 = long) */
425 FALSE, /* pc_relative */
427 complain_overflow_bitfield, /* complain_on_overflow */
428 bfd_elf_generic_reloc, /* special_function */
429 "R_METAG_JMP_SLOT", /* name */
430 FALSE, /* partial_inplace */
431 0xffffffff, /* src_mask */
432 0xffffffff, /* dst_mask */
433 FALSE), /* pcrel_offset */
435 /* Used only by the dynamic linker. When the object is run, this
436 longword is set to the load address of the object, plus the
438 HOWTO (R_METAG_RELATIVE, /* type */
440 2, /* size (0 = byte, 1 = short, 2 = long) */
442 FALSE, /* pc_relative */
444 complain_overflow_bitfield, /* complain_on_overflow */
445 bfd_elf_generic_reloc, /* special_function */
446 "R_METAG_RELATIVE", /* name */
447 FALSE, /* partial_inplace */
448 0xffffffff, /* src_mask */
449 0xffffffff, /* dst_mask */
450 FALSE), /* pcrel_offset */
452 HOWTO (R_METAG_GLOB_DAT, /* type */
454 2, /* size (0 = byte, 1 = short, 2 = long) */
456 FALSE, /* pc_relative */
458 complain_overflow_bitfield, /* complain_on_overflow */
459 bfd_elf_generic_reloc, /* special_function */
460 "R_METAG_GLOB_DAT", /* name */
461 FALSE, /* partial_inplace */
462 0xffffffff, /* src_mask */
463 0xffffffff, /* dst_mask */
464 FALSE), /* pcrel_offset */
466 HOWTO (R_METAG_TLS_GD, /* type */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
470 FALSE, /* pc_relative */
472 complain_overflow_dont, /* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_METAG_TLS_GD", /* name */
475 FALSE, /* partial_inplace */
477 0x0007fff8, /* dst_mask */
478 FALSE), /* pcrel_offset */
480 HOWTO (R_METAG_TLS_LDM, /* type */
482 2, /* size (0 = byte, 1 = short, 2 = long) */
484 FALSE, /* pc_relative */
486 complain_overflow_bitfield, /* complain_on_overflow */
487 bfd_elf_generic_reloc, /* special_function */
488 "R_METAG_TLS_LDM", /* name */
489 FALSE, /* partial_inplace */
491 0x0007fff8, /* dst_mask */
492 FALSE), /* pcrel_offset */
494 HOWTO (R_METAG_TLS_LDO_HI16, /* type */
496 2, /* size (0 = byte, 1 = short, 2 = long) */
498 FALSE, /* pc_relative */
500 complain_overflow_bitfield, /* complain_on_overflow */
501 bfd_elf_generic_reloc, /* special_function */
502 "R_METAG_TLS_LDO_HI16", /* name */
503 FALSE, /* partial_inplace */
505 0x0007fff8, /* dst_mask */
506 FALSE), /* pcrel_offset */
508 HOWTO (R_METAG_TLS_LDO_LO16, /* type */
510 2, /* size (0 = byte, 1 = short, 2 = long) */
512 FALSE, /* pc_relative */
514 complain_overflow_bitfield, /* complain_on_overflow */
515 bfd_elf_generic_reloc, /* special_function */
516 "R_METAG_TLS_LDO_LO16", /* name */
517 FALSE, /* partial_inplace */
519 0x0007fff8, /* dst_mask */
520 FALSE), /* pcrel_offset */
522 /* Dummy reloc used by the linker internally. */
523 HOWTO (R_METAG_TLS_LDO, /* type */
525 2, /* size (0 = byte, 1 = short, 2 = long) */
527 FALSE, /* pc_relative */
529 complain_overflow_bitfield, /* complain_on_overflow */
530 bfd_elf_generic_reloc, /* special_function */
531 "R_METAG_TLS_LDO", /* name */
532 FALSE, /* partial_inplace */
534 0x0007fff8, /* dst_mask */
535 FALSE), /* pcrel_offset */
537 HOWTO (R_METAG_TLS_IE, /* type */
539 2, /* size (0 = byte, 1 = short, 2 = long) */
541 FALSE, /* pc_relative */
543 complain_overflow_dont, /* complain_on_overflow */
544 bfd_elf_generic_reloc, /* special_function */
545 "R_METAG_TLS_IE", /* name */
546 FALSE, /* partial_inplace */
548 0x0007ff80, /* dst_mask */
549 FALSE), /* pcrel_offset */
551 /* Dummy reloc used by the linker internally. */
552 HOWTO (R_METAG_TLS_IENONPIC, /* type */
554 2, /* size (0 = byte, 1 = short, 2 = long) */
556 FALSE, /* pc_relative */
558 complain_overflow_dont, /* complain_on_overflow */
559 bfd_elf_generic_reloc, /* special_function */
560 "R_METAG_TLS_IENONPIC", /* name */
561 FALSE, /* partial_inplace */
563 0x0007fff8, /* dst_mask */
564 FALSE), /* pcrel_offset */
566 HOWTO (R_METAG_TLS_IENONPIC_HI16,/* type */
568 2, /* size (0 = byte, 1 = short, 2 = long) */
570 FALSE, /* pc_relative */
572 complain_overflow_dont, /* complain_on_overflow */
573 bfd_elf_generic_reloc, /* special_function */
574 "R_METAG_TLS_IENONPIC_HI16", /* name */
575 FALSE, /* partial_inplace */
577 0x0007fff8, /* dst_mask */
578 FALSE), /* pcrel_offset */
580 HOWTO (R_METAG_TLS_IENONPIC_LO16,/* type */
582 2, /* size (0 = byte, 1 = short, 2 = long) */
584 FALSE, /* pc_relative */
586 complain_overflow_dont, /* complain_on_overflow */
587 bfd_elf_generic_reloc, /* special_function */
588 "R_METAG_TLS_IENONPIC_LO16", /* name */
589 FALSE, /* partial_inplace */
591 0x0007fff8, /* dst_mask */
592 FALSE), /* pcrel_offset */
594 HOWTO (R_METAG_TLS_TPOFF, /* type */
596 2, /* size (0 = byte, 1 = short, 2 = long) */
598 FALSE, /* pc_relative */
600 complain_overflow_bitfield, /* complain_on_overflow */
601 bfd_elf_generic_reloc, /* special_function */
602 "R_METAG_TLS_TPOFF", /* name */
603 FALSE, /* partial_inplace */
605 0xffffffff, /* dst_mask */
606 FALSE), /* pcrel_offset */
608 HOWTO (R_METAG_TLS_DTPMOD, /* type */
610 2, /* size (0 = byte, 1 = short, 2 = long) */
612 FALSE, /* pc_relative */
614 complain_overflow_bitfield, /* complain_on_overflow */
615 bfd_elf_generic_reloc, /* special_function */
616 "R_METAG_TLS_DTPMOD", /* name */
617 FALSE, /* partial_inplace */
619 0xffffffff, /* dst_mask */
620 FALSE), /* pcrel_offset */
622 HOWTO (R_METAG_TLS_DTPOFF, /* type */
624 2, /* size (0 = byte, 1 = short, 2 = long) */
626 FALSE, /* pc_relative */
628 complain_overflow_bitfield, /* complain_on_overflow */
629 bfd_elf_generic_reloc, /* special_function */
630 "R_METAG_TLS_DTPOFF", /* name */
631 FALSE, /* partial_inplace */
633 0xffffffff, /* dst_mask */
634 FALSE), /* pcrel_offset */
636 /* Dummy reloc used by the linker internally. */
637 HOWTO (R_METAG_TLS_LE, /* type */
639 2, /* size (0 = byte, 1 = short, 2 = long) */
641 FALSE, /* pc_relative */
643 complain_overflow_bitfield, /* complain_on_overflow */
644 bfd_elf_generic_reloc, /* special_function */
645 "R_METAG_TLS_LE", /* name */
646 FALSE, /* partial_inplace */
648 0xffffffff, /* dst_mask */
649 FALSE), /* pcrel_offset */
651 HOWTO (R_METAG_TLS_LE_HI16, /* type */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
655 FALSE, /* pc_relative */
657 complain_overflow_dont, /* complain_on_overflow */
658 bfd_elf_generic_reloc, /* special_function */
659 "R_METAG_TLS_LE_HI16", /* name */
660 FALSE, /* partial_inplace */
662 0x0007fff8, /* dst_mask */
663 FALSE), /* pcrel_offset */
665 HOWTO (R_METAG_TLS_LE_LO16, /* type */
667 2, /* size (0 = byte, 1 = short, 2 = long) */
669 FALSE, /* pc_relative */
671 complain_overflow_dont, /* complain_on_overflow */
672 bfd_elf_generic_reloc, /* special_function */
673 "R_METAG_TLS_LE_LO16", /* name */
674 FALSE, /* partial_inplace */
676 0x0007fff8, /* dst_mask */
677 FALSE), /* pcrel_offset */
681 #define BRANCH_BITS 19
683 /* The GOT is typically accessed using a [GS]ETD instruction. The size of the
684 immediate offset which can be used in such instructions therefore limits
685 the usable size of the GOT. If the base register for the [GS]ETD (A1LbP)
686 is pointing to the base of the GOT then the size is limited to the maximum
687 11 bits unsigned dword offset, or 2^13 = 0x2000 bytes. However the offset
688 in a [GS]ETD instruction is signed, so by setting the base address register
689 to an offset of that 0x2000 byte maximum unsigned offset from the base of
690 the GOT we can use negative offsets in addition to positive. This
691 effectively doubles the usable GOT size to 0x4000 bytes. */
692 #define GOT_REG_OFFSET 0x2000
694 struct metag_reloc_map
696 bfd_reloc_code_real_type bfd_reloc_val;
697 unsigned int metag_reloc_val;
700 static const struct metag_reloc_map metag_reloc_map [] =
702 { BFD_RELOC_NONE, R_METAG_NONE },
703 { BFD_RELOC_32, R_METAG_ADDR32 },
704 { BFD_RELOC_METAG_HIADDR16, R_METAG_HIADDR16 },
705 { BFD_RELOC_METAG_LOADDR16, R_METAG_LOADDR16 },
706 { BFD_RELOC_METAG_RELBRANCH, R_METAG_RELBRANCH },
707 { BFD_RELOC_METAG_GETSETOFF, R_METAG_GETSETOFF },
708 { BFD_RELOC_VTABLE_INHERIT, R_METAG_GNU_VTINHERIT },
709 { BFD_RELOC_VTABLE_ENTRY, R_METAG_GNU_VTENTRY },
710 { BFD_RELOC_METAG_REL8, R_METAG_REL8 },
711 { BFD_RELOC_METAG_REL16, R_METAG_REL16 },
712 { BFD_RELOC_METAG_HI16_GOTOFF, R_METAG_HI16_GOTOFF },
713 { BFD_RELOC_METAG_LO16_GOTOFF, R_METAG_LO16_GOTOFF },
714 { BFD_RELOC_METAG_GETSET_GOTOFF, R_METAG_GETSET_GOTOFF },
715 { BFD_RELOC_METAG_GETSET_GOT, R_METAG_GETSET_GOT },
716 { BFD_RELOC_METAG_HI16_GOTPC, R_METAG_HI16_GOTPC },
717 { BFD_RELOC_METAG_LO16_GOTPC, R_METAG_LO16_GOTPC },
718 { BFD_RELOC_METAG_HI16_PLT, R_METAG_HI16_PLT },
719 { BFD_RELOC_METAG_LO16_PLT, R_METAG_LO16_PLT },
720 { BFD_RELOC_METAG_RELBRANCH_PLT, R_METAG_RELBRANCH_PLT },
721 { BFD_RELOC_METAG_GOTOFF, R_METAG_GOTOFF },
722 { BFD_RELOC_METAG_PLT, R_METAG_PLT },
723 { BFD_RELOC_METAG_COPY, R_METAG_COPY },
724 { BFD_RELOC_METAG_JMP_SLOT, R_METAG_JMP_SLOT },
725 { BFD_RELOC_METAG_RELATIVE, R_METAG_RELATIVE },
726 { BFD_RELOC_METAG_GLOB_DAT, R_METAG_GLOB_DAT },
727 { BFD_RELOC_METAG_TLS_GD, R_METAG_TLS_GD },
728 { BFD_RELOC_METAG_TLS_LDM, R_METAG_TLS_LDM },
729 { BFD_RELOC_METAG_TLS_LDO_HI16, R_METAG_TLS_LDO_HI16 },
730 { BFD_RELOC_METAG_TLS_LDO_LO16, R_METAG_TLS_LDO_LO16 },
731 { BFD_RELOC_METAG_TLS_LDO, R_METAG_TLS_LDO },
732 { BFD_RELOC_METAG_TLS_IE, R_METAG_TLS_IE },
733 { BFD_RELOC_METAG_TLS_IENONPIC, R_METAG_TLS_IENONPIC },
734 { BFD_RELOC_METAG_TLS_IENONPIC_HI16, R_METAG_TLS_IENONPIC_HI16 },
735 { BFD_RELOC_METAG_TLS_IENONPIC_LO16, R_METAG_TLS_IENONPIC_LO16 },
736 { BFD_RELOC_METAG_TLS_TPOFF, R_METAG_TLS_TPOFF },
737 { BFD_RELOC_METAG_TLS_DTPMOD, R_METAG_TLS_DTPMOD },
738 { BFD_RELOC_METAG_TLS_DTPOFF, R_METAG_TLS_DTPOFF },
739 { BFD_RELOC_METAG_TLS_LE, R_METAG_TLS_LE },
740 { BFD_RELOC_METAG_TLS_LE_HI16, R_METAG_TLS_LE_HI16 },
741 { BFD_RELOC_METAG_TLS_LE_LO16, R_METAG_TLS_LE_LO16 },
744 enum elf_metag_stub_type
746 metag_stub_long_branch,
747 metag_stub_long_branch_shared,
751 struct elf_metag_stub_hash_entry
753 /* Base hash table entry structure. */
754 struct bfd_hash_entry bh_root;
756 /* The stub section. */
759 /* Offset within stub_sec of the beginning of this stub. */
762 /* Given the symbol's value and its section we can determine its final
763 value when building the stubs (so the stub knows where to jump. */
764 bfd_vma target_value;
765 asection *target_section;
767 enum elf_metag_stub_type stub_type;
769 /* The symbol table entry, if any, that this was derived from. */
770 struct elf_metag_link_hash_entry *hh;
772 /* And the reloc addend that this was derived from. */
775 /* Where this stub is being called from, or, in the case of combined
776 stub sections, the first input section in the group. */
780 struct elf_metag_link_hash_entry
782 struct elf_link_hash_entry eh;
784 /* A pointer to the most recently used stub hash entry against this
786 struct elf_metag_stub_hash_entry *hsh_cache;
788 /* Used to count relocations for delayed sizing of relocation
790 struct elf_dyn_relocs *dyn_relocs;
794 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_IE = 2, GOT_TLS_LDM = 4, GOT_TLS_GD = 8
798 struct elf_metag_link_hash_table
800 /* The main hash table. */
801 struct elf_link_hash_table etab;
803 /* The stub hash table. */
804 struct bfd_hash_table bstab;
806 /* Linker stub bfd. */
809 /* Linker call-backs. */
810 asection * (*add_stub_section) (const char *, asection *);
811 void (*layout_sections_again) (void);
813 /* Array to keep track of which stub sections have been created, and
814 information on stub grouping. */
817 /* This is the section to which stubs in the group will be
820 /* The stub section. */
824 /* Assorted information used by elf_metag_size_stubs. */
825 unsigned int bfd_count;
826 unsigned int top_index;
827 asection **input_list;
828 Elf_Internal_Sym **all_local_syms;
830 /* Small local sym cache. */
831 struct sym_cache sym_cache;
833 /* Data for LDM relocations. */
836 bfd_signed_vma refcount;
841 /* Return the base vma address which should be subtracted from the
842 real address when resolving a dtpoff relocation. This is PT_TLS
845 dtpoff_base (struct bfd_link_info *info)
847 /* If tls_sec is NULL, we should have signalled an error already. */
848 if (elf_hash_table (info)->tls_sec == NULL)
850 return elf_hash_table (info)->tls_sec->vma;
853 /* Return the relocation value for R_METAG_TLS_IE */
855 tpoff (struct bfd_link_info *info, bfd_vma address)
857 /* If tls_sec is NULL, we should have signalled an error already. */
858 if (elf_hash_table (info)->tls_sec == NULL)
860 /* METAG TLS ABI is variant I and static TLS blocks start just after
861 tcbhead structure which has 2 pointer fields. */
862 return (address - elf_hash_table (info)->tls_sec->vma
863 + align_power ((bfd_vma) 8,
864 elf_hash_table (info)->tls_sec->alignment_power));
868 metag_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
870 Elf_Internal_Rela *dst)
874 r_type = ELF32_R_TYPE (dst->r_info);
875 if (r_type >= (unsigned int) R_METAG_MAX)
877 /* xgettext:c-format */
878 _bfd_error_handler (_("%pB: invalid METAG reloc number: %d"), abfd, r_type);
881 cache_ptr->howto = & elf_metag_howto_table [r_type];
884 static reloc_howto_type *
885 metag_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
886 bfd_reloc_code_real_type code)
890 for (i = 0; i < sizeof (metag_reloc_map) / sizeof (metag_reloc_map[0]); i++)
891 if (metag_reloc_map [i].bfd_reloc_val == code)
892 return & elf_metag_howto_table [metag_reloc_map[i].metag_reloc_val];
897 static reloc_howto_type *
898 metag_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
903 for (i = 0; i < sizeof (elf_metag_howto_table) / sizeof (elf_metag_howto_table[0]); i++)
904 if (elf_metag_howto_table[i].name != NULL
905 && strcasecmp (elf_metag_howto_table[i].name, r_name) == 0)
906 return &elf_metag_howto_table[i];
911 /* Various hash macros and functions. */
912 #define metag_link_hash_table(p) \
913 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
914 == METAG_ELF_DATA ? ((struct elf_metag_link_hash_table *) ((p)->hash)) : NULL)
916 #define metag_elf_hash_entry(ent) \
917 ((struct elf_metag_link_hash_entry *)(ent))
919 #define metag_stub_hash_entry(ent) \
920 ((struct elf_metag_stub_hash_entry *)(ent))
922 #define metag_stub_hash_lookup(table, string, create, copy) \
923 ((struct elf_metag_stub_hash_entry *) \
924 bfd_hash_lookup ((table), (string), (create), (copy)))
926 #define metag_elf_local_got_tls_type(abfd) \
927 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info)))
929 /* Assorted hash table functions. */
931 /* Initialize an entry in the stub hash table. */
933 static struct bfd_hash_entry *
934 stub_hash_newfunc (struct bfd_hash_entry *entry,
935 struct bfd_hash_table *table,
938 /* Allocate the structure if it has not already been allocated by a
942 entry = bfd_hash_allocate (table,
943 sizeof (struct elf_metag_stub_hash_entry));
948 /* Call the allocation method of the superclass. */
949 entry = bfd_hash_newfunc (entry, table, string);
952 struct elf_metag_stub_hash_entry *hsh;
954 /* Initialize the local fields. */
955 hsh = (struct elf_metag_stub_hash_entry *) entry;
956 hsh->stub_sec = NULL;
957 hsh->stub_offset = 0;
958 hsh->target_value = 0;
959 hsh->target_section = NULL;
960 hsh->stub_type = metag_stub_long_branch;
968 /* Initialize an entry in the link hash table. */
970 static struct bfd_hash_entry *
971 metag_link_hash_newfunc (struct bfd_hash_entry *entry,
972 struct bfd_hash_table *table,
975 /* Allocate the structure if it has not already been allocated by a
979 entry = bfd_hash_allocate (table,
980 sizeof (struct elf_metag_link_hash_entry));
985 /* Call the allocation method of the superclass. */
986 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
989 struct elf_metag_link_hash_entry *hh;
991 /* Initialize the local fields. */
992 hh = (struct elf_metag_link_hash_entry *) entry;
993 hh->hsh_cache = NULL;
994 hh->dyn_relocs = NULL;
995 hh->tls_type = GOT_UNKNOWN;
1001 /* Free the derived linker hash table. */
1004 elf_metag_link_hash_table_free (bfd *obfd)
1006 struct elf_metag_link_hash_table *htab
1007 = (struct elf_metag_link_hash_table *) obfd->link.hash;
1009 bfd_hash_table_free (&htab->bstab);
1010 _bfd_elf_link_hash_table_free (obfd);
1013 /* Create the derived linker hash table. The Meta ELF port uses the derived
1014 hash table to keep information specific to the Meta ELF linker (without
1015 using static variables). */
1017 static struct bfd_link_hash_table *
1018 elf_metag_link_hash_table_create (bfd *abfd)
1020 struct elf_metag_link_hash_table *htab;
1021 bfd_size_type amt = sizeof (*htab);
1023 htab = bfd_zmalloc (amt);
1027 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd,
1028 metag_link_hash_newfunc,
1029 sizeof (struct elf_metag_link_hash_entry),
1036 /* Init the stub hash table too. */
1037 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
1038 sizeof (struct elf_metag_stub_hash_entry)))
1040 _bfd_elf_link_hash_table_free (abfd);
1043 htab->etab.root.hash_table_free = elf_metag_link_hash_table_free;
1045 return &htab->etab.root;
1048 /* Section name for stubs is the associated section name plus this
1050 #define STUB_SUFFIX ".stub"
1052 /* Build a name for an entry in the stub hash table. */
1055 metag_stub_name (const asection *input_section,
1056 const asection *sym_sec,
1057 const struct elf_metag_link_hash_entry *hh,
1058 const Elf_Internal_Rela *rel)
1065 len = 8 + 1 + strlen (hh->eh.root.root.string) + 1 + 8 + 1;
1066 stub_name = bfd_malloc (len);
1067 if (stub_name != NULL)
1069 sprintf (stub_name, "%08x_%s+%x",
1070 input_section->id & 0xffffffff,
1071 hh->eh.root.root.string,
1072 (int) rel->r_addend & 0xffffffff);
1077 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
1078 stub_name = bfd_malloc (len);
1079 if (stub_name != NULL)
1081 sprintf (stub_name, "%08x_%x:%x+%x",
1082 input_section->id & 0xffffffff,
1083 sym_sec->id & 0xffffffff,
1084 (int) ELF32_R_SYM (rel->r_info) & 0xffffffff,
1085 (int) rel->r_addend & 0xffffffff);
1091 /* Look up an entry in the stub hash. Stub entries are cached because
1092 creating the stub name takes a bit of time. */
1094 static struct elf_metag_stub_hash_entry *
1095 metag_get_stub_entry (const asection *input_section,
1096 const asection *sym_sec,
1097 struct elf_metag_link_hash_entry *hh,
1098 const Elf_Internal_Rela *rel,
1099 struct elf_metag_link_hash_table *htab)
1101 struct elf_metag_stub_hash_entry *hsh;
1102 const asection *id_sec;
1104 /* If this input section is part of a group of sections sharing one
1105 stub section, then use the id of the first section in the group.
1106 Stub names need to include a section id, as there may well be
1107 more than one stub used to reach say, printf, and we need to
1108 distinguish between them. */
1109 id_sec = htab->stub_group[input_section->id].link_sec;
1111 if (hh != NULL && hh->hsh_cache != NULL
1112 && hh->hsh_cache->hh == hh
1113 && hh->hsh_cache->id_sec == id_sec)
1115 hsh = hh->hsh_cache;
1121 stub_name = metag_stub_name (id_sec, sym_sec, hh, rel);
1122 if (stub_name == NULL)
1125 hsh = metag_stub_hash_lookup (&htab->bstab,
1126 stub_name, FALSE, FALSE);
1129 hh->hsh_cache = hsh;
1137 /* Add a new stub entry to the stub hash. Not all fields of the new
1138 stub entry are initialised. */
1140 static struct elf_metag_stub_hash_entry *
1141 metag_add_stub (const char *stub_name,
1143 struct elf_metag_link_hash_table *htab)
1147 struct elf_metag_stub_hash_entry *hsh;
1149 link_sec = htab->stub_group[section->id].link_sec;
1150 stub_sec = htab->stub_group[section->id].stub_sec;
1151 if (stub_sec == NULL)
1153 stub_sec = htab->stub_group[link_sec->id].stub_sec;
1154 if (stub_sec == NULL)
1160 namelen = strlen (link_sec->name);
1161 len = namelen + sizeof (STUB_SUFFIX);
1162 s_name = bfd_alloc (htab->stub_bfd, len);
1166 memcpy (s_name, link_sec->name, namelen);
1167 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
1169 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
1170 if (stub_sec == NULL)
1172 htab->stub_group[link_sec->id].stub_sec = stub_sec;
1174 htab->stub_group[section->id].stub_sec = stub_sec;
1177 /* Enter this entry into the linker stub hash table. */
1178 hsh = metag_stub_hash_lookup (&htab->bstab, stub_name,
1182 /* xgettext:c-format */
1183 _bfd_error_handler (_("%pB: cannot create stub entry %s"),
1184 section->owner, stub_name);
1188 hsh->stub_sec = stub_sec;
1189 hsh->stub_offset = 0;
1190 hsh->id_sec = link_sec;
1194 /* Check a signed integer value can be represented in the given number
1198 within_signed_range (int value, unsigned int bits)
1200 int min_val = -(1 << (bits - 1));
1201 int max_val = (1 << (bits - 1)) - 1;
1202 return (value <= max_val) && (value >= min_val);
1205 /* Perform a relocation as part of a final link. */
1207 static bfd_reloc_status_type
1208 metag_final_link_relocate (reloc_howto_type *howto,
1210 asection *input_section,
1212 Elf_Internal_Rela *rel,
1214 struct elf_metag_link_hash_entry *hh,
1215 struct elf_metag_link_hash_table *htab,
1218 bfd_reloc_status_type r = bfd_reloc_ok;
1219 bfd_byte *hit_data = contents + rel->r_offset;
1220 int opcode, op_shift, op_extended, l1, l2;
1221 bfd_signed_vma srel, addend = rel->r_addend;
1222 struct elf_metag_stub_hash_entry *hsh = NULL;
1225 /* Find out where we are and where we're going. */
1226 location = (rel->r_offset +
1227 input_section->output_offset +
1228 input_section->output_section->vma);
1230 switch (howto->type)
1232 case R_METAG_RELBRANCH:
1233 case R_METAG_RELBRANCH_PLT:
1234 /* Make it a pc relative offset. */
1235 relocation -= location;
1237 case R_METAG_TLS_GD:
1238 case R_METAG_TLS_IE:
1239 relocation -= elf_gp (input_section->output_section->owner);
1245 switch (howto->type)
1247 case R_METAG_RELBRANCH_PLT:
1248 case R_METAG_RELBRANCH:
1249 opcode = bfd_get_32 (input_bfd, hit_data);
1251 srel = (bfd_signed_vma) relocation;
1254 /* If the branch is out of reach, then redirect the
1255 call to the local stub for this function. */
1256 if (srel > ((1 << (BRANCH_BITS + 1)) - 1) ||
1257 (srel < - (1 << (BRANCH_BITS + 1))))
1259 if (sym_sec == NULL)
1262 hsh = metag_get_stub_entry (input_section, sym_sec,
1265 return bfd_reloc_undefined;
1267 /* Munge up the value and addend so that we call the stub
1268 rather than the procedure directly. */
1269 srel = (hsh->stub_offset
1270 + hsh->stub_sec->output_offset
1271 + hsh->stub_sec->output_section->vma);
1277 if (!within_signed_range (srel, BRANCH_BITS))
1279 if (hh && hh->eh.root.type == bfd_link_hash_undefweak)
1282 return bfd_reloc_overflow;
1285 opcode &= ~(0x7ffff << 5);
1286 opcode |= ((srel & 0x7ffff) << 5);
1288 bfd_put_32 (input_bfd, opcode, hit_data);
1290 case R_METAG_GETSETOFF:
1291 case R_METAG_GETSET_GOT:
1292 case R_METAG_GETSET_GOTOFF:
1293 opcode = bfd_get_32 (input_bfd, hit_data);
1295 srel = (bfd_signed_vma) relocation;
1298 /* Is this a standard or extended GET/SET? */
1299 if ((opcode & 0xf0000000) == 0xa0000000)
1301 /* Extended GET/SET. */
1308 /* Standard GET/SET. */
1309 l1 = opcode & 0x01000000;
1310 l2 = opcode & 0x04000000;
1314 /* Calculate the width of the GET/SET and how much we need to
1315 shift the result by. */
1327 /* GET/SET offsets are scaled by the width of the transfer. */
1328 srel = srel >> op_shift;
1330 /* Extended GET/SET has signed 12 bits of offset, standard has
1334 if (!within_signed_range (srel, 12))
1336 if (hh && hh->eh.root.type == bfd_link_hash_undefweak)
1339 return bfd_reloc_overflow;
1341 opcode &= ~(0xfff << 7);
1342 opcode |= ((srel & 0xfff) << 7);
1346 if (!within_signed_range (srel, 5))
1348 if (hh && hh->eh.root.type == bfd_link_hash_undefweak)
1351 return bfd_reloc_overflow;
1353 opcode &= ~(0x3f << 8);
1354 opcode |= ((srel & 0x3f) << 8);
1357 bfd_put_32 (input_bfd, opcode, hit_data);
1359 case R_METAG_TLS_GD:
1360 case R_METAG_TLS_LDM:
1361 opcode = bfd_get_32 (input_bfd, hit_data);
1363 if ((bfd_signed_vma)relocation < 0)
1365 /* sign extend immediate */
1366 if ((opcode & 0xf2000001) == 0x02000000)
1368 /* ADD De.e,Dx.r,#I16 */
1372 return bfd_reloc_overflow;
1375 bfd_put_32 (input_bfd, opcode, hit_data);
1377 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
1378 contents, rel->r_offset,
1379 relocation, rel->r_addend);
1382 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
1383 contents, rel->r_offset,
1384 relocation, rel->r_addend);
1390 /* This is defined because R_METAG_NONE != 0...
1391 See RELOC_AGAINST_DISCARDED_SECTION for details. */
1392 #define METAG_RELOC_AGAINST_DISCARDED_SECTION(info, input_bfd, input_section, \
1393 rel, relend, howto, contents) \
1395 _bfd_clear_contents (howto, input_bfd, input_section, \
1396 contents + rel->r_offset); \
1398 if (bfd_link_relocatable (info) \
1399 && (input_section->flags & SEC_DEBUGGING)) \
1401 /* Only remove relocations in debug sections since other \
1402 sections may require relocations. */ \
1403 Elf_Internal_Shdr *rel_hdr; \
1405 rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); \
1407 /* Avoid empty output section. */ \
1408 if (rel_hdr->sh_size > rel_hdr->sh_entsize) \
1410 rel_hdr->sh_size -= rel_hdr->sh_entsize; \
1411 rel_hdr = _bfd_elf_single_rel_hdr (input_section); \
1412 rel_hdr->sh_size -= rel_hdr->sh_entsize; \
1414 memmove (rel, rel + 1, (relend - rel) * sizeof (*rel)); \
1416 input_section->reloc_count--; \
1423 rel->r_info = R_METAG_NONE; \
1424 rel->r_addend = 0; \
1428 /* Relocate a META ELF section.
1430 The RELOCATE_SECTION function is called by the new ELF backend linker
1431 to handle the relocations for a section.
1433 The relocs are always passed as Rela structures; if the section
1434 actually uses Rel structures, the r_addend field will always be
1437 This function is responsible for adjusting the section contents as
1438 necessary, and (if using Rela relocs and generating a relocatable
1439 output file) adjusting the reloc addend as necessary.
1441 This function does not have to worry about setting the reloc
1442 address or the reloc symbol index.
1444 LOCAL_SYMS is a pointer to the swapped in local symbols.
1446 LOCAL_SECTIONS is an array giving the section in the input file
1447 corresponding to the st_shndx field of each local symbol.
1449 The global hash table entry for the global symbols can be found
1450 via elf_sym_hashes (input_bfd).
1452 When generating relocatable output, this function must handle
1453 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
1454 going to be the section symbol corresponding to the output
1455 section, which means that the addend must be adjusted
1459 elf_metag_relocate_section (bfd *output_bfd,
1460 struct bfd_link_info *info,
1462 asection *input_section,
1464 Elf_Internal_Rela *relocs,
1465 Elf_Internal_Sym *local_syms,
1466 asection **local_sections)
1468 bfd_vma *local_got_offsets;
1469 Elf_Internal_Shdr *symtab_hdr;
1470 struct elf_link_hash_entry **eh_syms;
1471 struct elf_metag_link_hash_table *htab;
1472 Elf_Internal_Rela *rel;
1473 Elf_Internal_Rela *relend;
1476 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
1477 eh_syms = elf_sym_hashes (input_bfd);
1478 relend = relocs + input_section->reloc_count;
1480 htab = metag_link_hash_table (info);
1481 local_got_offsets = elf_local_got_offsets (input_bfd);
1485 for (rel = relocs; rel < relend; rel ++)
1487 reloc_howto_type *howto;
1488 unsigned long r_symndx;
1489 Elf_Internal_Sym *sym;
1491 struct elf_metag_link_hash_entry *hh;
1493 bfd_reloc_status_type r;
1497 r_type = ELF32_R_TYPE (rel->r_info);
1499 if (r_type == R_METAG_GNU_VTINHERIT
1500 || r_type == R_METAG_GNU_VTENTRY
1501 || r_type == R_METAG_NONE)
1504 r_symndx = ELF32_R_SYM (rel->r_info);
1506 howto = elf_metag_howto_table + ELF32_R_TYPE (rel->r_info);
1511 if (r_symndx < symtab_hdr->sh_info)
1513 sym = local_syms + r_symndx;
1514 sec = local_sections [r_symndx];
1515 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1517 name = bfd_elf_string_from_elf_section
1518 (input_bfd, symtab_hdr->sh_link, sym->st_name);
1519 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
1523 struct elf_link_hash_entry *eh;
1524 bfd_boolean unresolved_reloc, warned, ignored;
1526 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1527 r_symndx, symtab_hdr, eh_syms,
1528 eh, sec, relocation,
1529 unresolved_reloc, warned, ignored);
1531 name = eh->root.root.string;
1532 hh = (struct elf_metag_link_hash_entry *) eh;
1535 if (sec != NULL && discarded_section (sec))
1536 METAG_RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1537 rel, relend, howto, contents);
1539 if (bfd_link_relocatable (info))
1544 case R_METAG_ADDR32:
1545 case R_METAG_RELBRANCH:
1546 if ((input_section->flags & SEC_ALLOC) == 0)
1549 if ((bfd_link_pic (info)
1550 && r_symndx != STN_UNDEF
1551 && (input_section->flags & SEC_ALLOC) != 0
1552 && (r_type != R_METAG_RELBRANCH
1553 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
1554 || (!bfd_link_pic (info)
1556 && hh->eh.dynindx != -1
1557 && !hh->eh.non_got_ref
1558 && ((hh->eh.def_dynamic
1559 && !hh->eh.def_regular)
1560 || hh->eh.root.type == bfd_link_hash_undefweak
1561 || hh->eh.root.type == bfd_link_hash_undefined)))
1563 Elf_Internal_Rela outrel;
1564 bfd_boolean skip, relocate;
1567 /* When generating a shared object, these relocations
1568 are copied into the output file to be resolved at run
1571 sreloc = elf_section_data (input_section)->sreloc;
1572 BFD_ASSERT (sreloc != NULL);
1577 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
1581 if (outrel.r_offset == (bfd_vma) -1)
1583 else if (outrel.r_offset == (bfd_vma) -2)
1584 skip = TRUE, relocate = TRUE;
1585 outrel.r_offset += (input_section->output_section->vma
1586 + input_section->output_offset);
1590 memset (&outrel, 0, sizeof outrel);
1591 outrel.r_info = ELF32_R_INFO (0, R_METAG_NONE);
1593 else if (r_type == R_METAG_RELBRANCH)
1595 BFD_ASSERT (hh != NULL && hh->eh.dynindx != -1);
1596 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
1597 outrel.r_addend = rel->r_addend;
1601 /* h->dynindx may be -1 if this symbol was marked to
1604 || ((info->symbolic || hh->eh.dynindx == -1)
1605 && hh->eh.def_regular))
1608 outrel.r_info = ELF32_R_INFO (0, R_METAG_RELATIVE);
1609 outrel.r_addend = relocation + rel->r_addend;
1613 BFD_ASSERT (hh->eh.dynindx != -1);
1614 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
1615 outrel.r_addend = rel->r_addend;
1619 loc = sreloc->contents;
1620 loc += sreloc->reloc_count * sizeof(Elf32_External_Rela);
1621 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
1622 ++sreloc->reloc_count;
1624 /* If this reloc is against an external symbol, we do
1625 not want to fiddle with the addend. Otherwise, we
1626 need to include the symbol value so that it becomes
1627 an addend for the dynamic reloc. */
1633 case R_METAG_RELBRANCH_PLT:
1634 /* Relocation is to the entry for this symbol in the
1635 procedure linkage table. */
1640 if (hh->eh.forced_local)
1643 if (hh->eh.plt.offset == (bfd_vma) -1 || htab->etab.splt == NULL)
1645 /* We didn't make a PLT entry for this symbol. This
1646 happens when statically linking PIC code, or when
1647 using -Bsymbolic. */
1651 relocation = (htab->etab.splt->output_section->vma
1652 + htab->etab.splt->output_offset
1653 + hh->eh.plt.offset);
1655 case R_METAG_HI16_GOTPC:
1656 case R_METAG_LO16_GOTPC:
1657 BFD_ASSERT (htab->etab.sgot != NULL);
1659 relocation = (htab->etab.sgot->output_section->vma +
1660 htab->etab.sgot->output_offset);
1661 relocation += GOT_REG_OFFSET;
1662 relocation -= (input_section->output_section->vma
1663 + input_section->output_offset
1666 case R_METAG_HI16_GOTOFF:
1667 case R_METAG_LO16_GOTOFF:
1668 case R_METAG_GETSET_GOTOFF:
1669 BFD_ASSERT (htab->etab.sgot != NULL);
1671 relocation -= (htab->etab.sgot->output_section->vma +
1672 htab->etab.sgot->output_offset);
1673 relocation -= GOT_REG_OFFSET;
1675 case R_METAG_GETSET_GOT:
1678 bfd_boolean do_got = 0;
1680 /* Relocation is to the entry for this symbol in the
1681 global offset table. */
1686 off = hh->eh.got.offset;
1687 dyn = htab->etab.dynamic_sections_created;
1688 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
1689 bfd_link_pic (info),
1692 /* If we aren't going to call finish_dynamic_symbol,
1693 then we need to handle initialisation of the .got
1694 entry and create needed relocs here. Since the
1695 offset must always be a multiple of 4, we use the
1696 least significant bit to record whether we have
1697 initialised it already. */
1702 hh->eh.got.offset |= 1;
1709 /* Local symbol case. */
1710 if (local_got_offsets == NULL)
1713 off = local_got_offsets[r_symndx];
1715 /* The offset must always be a multiple of 4. We use
1716 the least significant bit to record whether we have
1717 already generated the necessary reloc. */
1722 local_got_offsets[r_symndx] |= 1;
1729 if (bfd_link_pic (info))
1731 /* Output a dynamic relocation for this GOT entry.
1732 In this case it is relative to the base of the
1733 object because the symbol index is zero. */
1734 Elf_Internal_Rela outrel;
1736 asection *s = htab->etab.srelgot;
1738 outrel.r_offset = (off
1739 + htab->etab.sgot->output_offset
1740 + htab->etab.sgot->output_section->vma);
1741 outrel.r_info = ELF32_R_INFO (0, R_METAG_RELATIVE);
1742 outrel.r_addend = relocation;
1744 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
1745 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1748 bfd_put_32 (output_bfd, relocation,
1749 htab->etab.sgot->contents + off);
1752 if (off >= (bfd_vma) -2)
1755 relocation = off - GOT_REG_OFFSET;
1758 case R_METAG_TLS_GD:
1759 case R_METAG_TLS_IE:
1761 /* XXXMJF There is room here for optimisations. For example
1762 converting from GD->IE, etc. */
1767 if (htab->etab.sgot == NULL)
1774 dyn = htab->etab.dynamic_sections_created;
1776 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
1777 bfd_link_pic (info),
1779 && (!bfd_link_pic (info)
1780 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
1782 indx = hh->eh.dynindx;
1784 off = hh->eh.got.offset;
1785 tls_type = hh->tls_type;
1789 /* Local symbol case. */
1790 if (local_got_offsets == NULL)
1793 off = local_got_offsets[r_symndx];
1794 tls_type = metag_elf_local_got_tls_type (input_bfd) [r_symndx];
1797 if (tls_type == GOT_UNKNOWN)
1804 bfd_boolean need_relocs = FALSE;
1805 Elf_Internal_Rela outrel;
1806 bfd_byte *loc = NULL;
1809 /* The GOT entries have not been initialized yet. Do it
1810 now, and emit any relocations. If both an IE GOT and a
1811 GD GOT are necessary, we emit the GD first. */
1813 if ((bfd_link_pic (info) || indx != 0)
1815 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
1816 || hh->eh.root.type != bfd_link_hash_undefweak))
1819 loc = htab->etab.srelgot->contents;
1820 /* FIXME (CAO): Should this be reloc_count++ ? */
1821 loc += htab->etab.srelgot->reloc_count * sizeof (Elf32_External_Rela);
1824 if (tls_type & GOT_TLS_GD)
1828 outrel.r_offset = (cur_off
1829 + htab->etab.sgot->output_section->vma
1830 + htab->etab.sgot->output_offset);
1831 outrel.r_info = ELF32_R_INFO (indx, R_METAG_TLS_DTPMOD);
1832 outrel.r_addend = 0;
1833 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + cur_off);
1835 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1836 htab->etab.srelgot->reloc_count++;
1837 loc += sizeof (Elf32_External_Rela);
1840 bfd_put_32 (output_bfd, 0,
1841 htab->etab.sgot->contents + cur_off + 4);
1844 bfd_put_32 (output_bfd, 0,
1845 htab->etab.sgot->contents + cur_off + 4);
1846 outrel.r_info = ELF32_R_INFO (indx,
1847 R_METAG_TLS_DTPOFF);
1848 outrel.r_offset += 4;
1849 bfd_elf32_swap_reloca_out (output_bfd,
1851 htab->etab.srelgot->reloc_count++;
1852 loc += sizeof (Elf32_External_Rela);
1857 /* We don't support changing the TLS model. */
1859 if (bfd_link_pic (info))
1860 _bfd_error_handler (_("%pB(%pA): multiple TLS models are not supported"),
1861 input_bfd, input_section);
1863 _bfd_error_handler (_("%pB(%pA): shared library symbol %s encountered whilst performing a static link"),
1864 input_bfd, input_section, name);
1871 if (tls_type & GOT_TLS_IE)
1875 outrel.r_offset = (cur_off
1876 + htab->etab.sgot->output_section->vma
1877 + htab->etab.sgot->output_offset);
1878 outrel.r_info = ELF32_R_INFO (indx, R_METAG_TLS_TPOFF);
1881 outrel.r_addend = relocation - dtpoff_base (info);
1883 outrel.r_addend = 0;
1885 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1886 htab->etab.srelgot->reloc_count++;
1887 loc += sizeof (Elf32_External_Rela);
1890 bfd_put_32 (output_bfd, tpoff (info, relocation),
1891 htab->etab.sgot->contents + cur_off);
1897 hh->eh.got.offset |= 1;
1899 local_got_offsets[r_symndx] |= 1;
1902 /* Add the base of the GOT to the relocation value. */
1903 relocation = off - GOT_REG_OFFSET;
1908 case R_METAG_TLS_IENONPIC_HI16:
1909 case R_METAG_TLS_IENONPIC_LO16:
1910 case R_METAG_TLS_LE_HI16:
1911 case R_METAG_TLS_LE_LO16:
1912 if (bfd_link_pic (info))
1915 /* xgettext:c-format */
1916 (_("%pB(%pA+%#" PRIx64 "): "
1917 "%s relocation not permitted in shared object"),
1918 input_bfd, input_section, (uint64_t) rel->r_offset,
1923 relocation = tpoff (info, relocation);
1925 case R_METAG_TLS_LDO_HI16:
1926 case R_METAG_TLS_LDO_LO16:
1927 if (! bfd_link_pic (info))
1928 relocation = tpoff (info, relocation);
1930 relocation -= dtpoff_base (info);
1932 case R_METAG_TLS_LDM:
1936 if (htab->etab.sgot == NULL)
1938 off = htab->tls_ldm_got.offset;
1943 Elf_Internal_Rela outrel;
1946 outrel.r_offset = (off
1947 + htab->etab.sgot->output_section->vma
1948 + htab->etab.sgot->output_offset);
1950 outrel.r_addend = 0;
1951 outrel.r_info = ELF32_R_INFO (0, R_METAG_TLS_DTPMOD);
1952 loc = htab->etab.srelgot->contents;
1953 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1954 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1955 htab->tls_ldm_got.offset |= 1;
1958 relocation = off - GOT_REG_OFFSET;
1965 r = metag_final_link_relocate (howto, input_bfd, input_section,
1966 contents, rel, relocation, hh, htab,
1969 if (r != bfd_reloc_ok)
1971 const char * msg = (const char *) NULL;
1975 case bfd_reloc_overflow:
1976 (*info->callbacks->reloc_overflow)
1977 (info, (hh ? &hh->eh.root : NULL), name, howto->name,
1978 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1981 case bfd_reloc_undefined:
1982 (*info->callbacks->undefined_symbol)
1983 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1986 case bfd_reloc_outofrange:
1987 msg = _("internal error: out of range error");
1990 case bfd_reloc_notsupported:
1991 msg = _("internal error: unsupported relocation error");
1994 case bfd_reloc_dangerous:
1995 msg = _("internal error: dangerous relocation");
1999 msg = _("internal error: unknown error");
2004 (*info->callbacks->warning) (info, msg, name, input_bfd,
2005 input_section, rel->r_offset);
2012 /* Create the .plt and .got sections, and set up our hash table
2013 short-cuts to various dynamic sections. */
2016 elf_metag_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2018 struct elf_metag_link_hash_table *htab;
2019 struct elf_link_hash_entry *eh;
2020 struct bfd_link_hash_entry *bh;
2021 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2023 /* Don't try to create the .plt and .got twice. */
2024 htab = metag_link_hash_table (info);
2025 if (htab->etab.splt != NULL)
2028 /* Call the generic code to do most of the work. */
2029 if (! _bfd_elf_create_dynamic_sections (abfd, info))
2032 /* The header goes at the start of the dynamic .got section, which
2033 is placed after the dynamic .got.plt section. ie. The header is
2034 not necessarily at the start of the output .got section. */
2035 htab->etab.sgot->size += 12;
2037 /* Define the symbol __GLOBAL_OFFSET_TABLE__ on the header. */
2039 if (!(_bfd_generic_link_add_one_symbol
2040 (info, abfd, "__GLOBAL_OFFSET_TABLE__", BSF_GLOBAL, htab->etab.sgot,
2041 (bfd_vma) 0, NULL, FALSE, bed->collect, &bh)))
2043 eh = (struct elf_link_hash_entry *) bh;
2044 eh->def_regular = 1;
2045 eh->type = STT_OBJECT;
2046 eh->other = STV_HIDDEN;
2048 if (! bfd_link_executable (info)
2049 && ! bfd_elf_link_record_dynamic_symbol (info, eh))
2052 htab->etab.hgot = eh;
2057 /* Look through the relocs for a section during the first phase, and
2058 calculate needed space in the global offset table, procedure linkage
2059 table, and dynamic reloc sections. At this point we haven't
2060 necessarily read all the input files. */
2063 elf_metag_check_relocs (bfd *abfd,
2064 struct bfd_link_info *info,
2066 const Elf_Internal_Rela *relocs)
2068 Elf_Internal_Shdr *symtab_hdr;
2069 struct elf_link_hash_entry **eh_syms;
2070 const Elf_Internal_Rela *rel;
2071 const Elf_Internal_Rela *rel_end;
2072 struct elf_metag_link_hash_table *htab;
2075 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
2077 if (bfd_link_relocatable (info))
2080 htab = metag_link_hash_table (info);
2081 dynobj = htab->etab.dynobj;
2082 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2083 eh_syms = elf_sym_hashes (abfd);
2089 rel_end = relocs + sec->reloc_count;
2090 for (rel = relocs; rel < rel_end; rel++)
2093 struct elf_metag_link_hash_entry *hh;
2094 Elf_Internal_Sym *isym;
2095 unsigned long r_symndx;
2097 r_symndx = ELF32_R_SYM (rel->r_info);
2098 r_type = ELF32_R_TYPE (rel->r_info);
2099 if (r_symndx < symtab_hdr->sh_info)
2101 /* A local symbol. */
2102 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2113 hh = (struct elf_metag_link_hash_entry *)
2114 eh_syms[r_symndx - symtab_hdr->sh_info];
2115 while (hh->eh.root.type == bfd_link_hash_indirect
2116 || hh->eh.root.type == bfd_link_hash_warning)
2117 hh = (struct elf_metag_link_hash_entry *) hh->eh.root.u.i.link;
2120 /* Some relocs require a global offset table. */
2121 if (htab->etab.sgot == NULL)
2125 case R_METAG_TLS_GD:
2126 case R_METAG_TLS_LDM:
2127 case R_METAG_TLS_IE:
2128 if (bfd_link_pic (info))
2129 info->flags |= DF_STATIC_TLS;
2132 case R_METAG_HI16_GOTOFF:
2133 case R_METAG_LO16_GOTOFF:
2134 case R_METAG_GETSET_GOTOFF:
2135 case R_METAG_GETSET_GOT:
2136 case R_METAG_HI16_GOTPC:
2137 case R_METAG_LO16_GOTPC:
2139 htab->etab.dynobj = dynobj = abfd;
2140 if (!elf_metag_create_dynamic_sections (dynobj, info))
2151 case R_METAG_TLS_IE:
2152 case R_METAG_TLS_GD:
2153 case R_METAG_GETSET_GOT:
2157 tls_type = GOT_NORMAL;
2159 case R_METAG_TLS_IE:
2160 tls_type = GOT_TLS_IE;
2162 case R_METAG_TLS_GD:
2163 tls_type = GOT_TLS_GD;
2169 hh->eh.got.refcount += 1;
2170 old_tls_type = hh->tls_type;
2174 bfd_signed_vma *local_got_refcounts;
2176 /* This is a global offset table entry for a local
2178 local_got_refcounts = elf_local_got_refcounts (abfd);
2179 if (local_got_refcounts == NULL)
2183 size = symtab_hdr->sh_info;
2184 size *= sizeof (bfd_signed_vma);
2185 /* Add in space to store the local GOT TLS types. */
2186 size += symtab_hdr->sh_info;
2187 local_got_refcounts = ((bfd_signed_vma *)
2188 bfd_zalloc (abfd, size));
2189 if (local_got_refcounts == NULL)
2191 elf_local_got_refcounts (abfd) = local_got_refcounts;
2192 memset (metag_elf_local_got_tls_type (abfd),
2193 GOT_UNKNOWN, symtab_hdr->sh_info);
2195 local_got_refcounts[r_symndx] += 1;
2196 old_tls_type = metag_elf_local_got_tls_type (abfd) [r_symndx];
2199 if (old_tls_type != tls_type)
2203 hh->tls_type = tls_type;
2207 metag_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
2213 case R_METAG_TLS_LDM:
2214 metag_link_hash_table (info)->tls_ldm_got.refcount += 1;
2217 case R_METAG_RELBRANCH_PLT:
2218 /* This symbol requires a procedure linkage table entry. We
2219 actually build the entry in adjust_dynamic_symbol,
2220 because this might be a case of linking PIC code without
2221 linking in any dynamic objects, in which case we don't
2222 need to generate a procedure linkage table after all. */
2224 /* If this is a local symbol, we resolve it directly without
2225 creating a procedure linkage table entry. */
2229 if (hh->eh.forced_local)
2232 hh->eh.needs_plt = 1;
2233 hh->eh.plt.refcount += 1;
2236 case R_METAG_HIADDR16:
2237 case R_METAG_LOADDR16:
2238 /* Let's help debug shared library creation. These relocs
2239 cannot be used in shared libs. Don't error out for
2240 sections we don't care about, such as debug sections or
2241 non-constant sections. */
2242 if (bfd_link_pic (info)
2243 && (sec->flags & SEC_ALLOC) != 0
2244 && (sec->flags & SEC_READONLY) != 0)
2249 name = hh->eh.root.root.string;
2251 name = bfd_elf_sym_name (abfd, symtab_hdr, isym, NULL);
2253 /* xgettext:c-format */
2254 (_("%pB: relocation %s against `%s' can not be used when making a shared object; recompile with -fPIC"),
2255 abfd, elf_metag_howto_table[r_type].name, name);
2256 bfd_set_error (bfd_error_bad_value);
2261 case R_METAG_ADDR32:
2262 case R_METAG_RELBRANCH:
2263 case R_METAG_GETSETOFF:
2264 if (hh != NULL && !bfd_link_pic (info))
2266 hh->eh.non_got_ref = 1;
2267 hh->eh.plt.refcount += 1;
2270 /* If we are creating a shared library, and this is a reloc
2271 against a global symbol, or a non PC relative reloc
2272 against a local symbol, then we need to copy the reloc
2273 into the shared library. However, if we are linking with
2274 -Bsymbolic, we do not need to copy a reloc against a
2275 global symbol which is defined in an object we are
2276 including in the link (i.e., DEF_REGULAR is set). At
2277 this point we have not seen all the input files, so it is
2278 possible that DEF_REGULAR is not set now but will be set
2279 later (it is never cleared). We account for that
2280 possibility below by storing information in the
2281 dyn_relocs field of the hash table entry. A similar
2282 situation occurs when creating shared libraries and symbol
2283 visibility changes render the symbol local.
2285 If on the other hand, we are creating an executable, we
2286 may need to keep relocations for symbols satisfied by a
2287 dynamic library if we manage to avoid copy relocs for the
2289 if ((bfd_link_pic (info)
2290 && (sec->flags & SEC_ALLOC) != 0
2291 && (r_type != R_METAG_RELBRANCH
2293 && (! info->symbolic
2294 || hh->eh.root.type == bfd_link_hash_defweak
2295 || !hh->eh.def_regular))))
2296 || (!bfd_link_pic (info)
2297 && (sec->flags & SEC_ALLOC) != 0
2299 && (hh->eh.root.type == bfd_link_hash_defweak
2300 || !hh->eh.def_regular)))
2302 struct elf_dyn_relocs *hdh_p;
2303 struct elf_dyn_relocs **hdh_head;
2306 htab->etab.dynobj = dynobj = abfd;
2308 /* When creating a shared object, we must copy these
2309 relocs into the output file. We create a reloc
2310 section in dynobj and make room for the reloc. */
2313 sreloc = _bfd_elf_make_dynamic_reloc_section
2314 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
2318 bfd_set_error (bfd_error_bad_value);
2322 elf_section_data (sec)->sreloc = sreloc;
2325 /* If this is a global symbol, we count the number of
2326 relocations we need for this symbol. */
2328 hdh_head = &((struct elf_metag_link_hash_entry *) hh)->dyn_relocs;
2331 /* Track dynamic relocs needed for local syms too. */
2335 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
2339 vpp = &elf_section_data (sr)->local_dynrel;
2340 hdh_head = (struct elf_dyn_relocs **) vpp;
2344 if (hdh_p == NULL || hdh_p->sec != sec)
2346 hdh_p = ((struct elf_dyn_relocs *)
2347 bfd_alloc (dynobj, sizeof *hdh_p));
2350 hdh_p->next = *hdh_head;
2354 hdh_p->pc_count = 0;
2358 if (ELF32_R_TYPE (rel->r_info) == R_METAG_RELBRANCH)
2359 hdh_p->pc_count += 1;
2363 /* This relocation describes the C++ object vtable hierarchy.
2364 Reconstruct it for later use during GC. */
2365 case R_METAG_GNU_VTINHERIT:
2366 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh,
2371 /* This relocation describes which C++ vtable entries are actually
2372 used. Record for later use during GC. */
2373 case R_METAG_GNU_VTENTRY:
2374 BFD_ASSERT (hh != NULL);
2376 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rel->r_addend))
2385 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2388 elf_metag_copy_indirect_symbol (struct bfd_link_info *info,
2389 struct elf_link_hash_entry *eh_dir,
2390 struct elf_link_hash_entry *eh_ind)
2392 struct elf_metag_link_hash_entry *hh_dir, *hh_ind;
2394 hh_dir = metag_elf_hash_entry (eh_dir);
2395 hh_ind = metag_elf_hash_entry (eh_ind);
2397 if (hh_ind->dyn_relocs != NULL)
2399 if (hh_dir->dyn_relocs != NULL)
2401 struct elf_dyn_relocs **hdh_pp;
2402 struct elf_dyn_relocs *hdh_p;
2404 if (eh_ind->root.type == bfd_link_hash_indirect)
2407 /* Add reloc counts against the weak sym to the strong sym
2408 list. Merge any entries against the same section. */
2409 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2411 struct elf_dyn_relocs *hdh_q;
2413 for (hdh_q = hh_dir->dyn_relocs; hdh_q != NULL;
2414 hdh_q = hdh_q->next)
2415 if (hdh_q->sec == hdh_p->sec)
2417 hdh_q->pc_count += hdh_p->pc_count;
2418 hdh_q->count += hdh_p->count;
2419 *hdh_pp = hdh_p->next;
2423 hdh_pp = &hdh_p->next;
2425 *hdh_pp = hh_dir->dyn_relocs;
2428 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
2429 hh_ind->dyn_relocs = NULL;
2432 if (eh_ind->root.type == bfd_link_hash_indirect
2433 && eh_dir->got.refcount <= 0)
2435 hh_dir->tls_type = hh_ind->tls_type;
2436 hh_ind->tls_type = GOT_UNKNOWN;
2439 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
2442 /* Find dynamic relocs for H that apply to read-only sections. */
2445 readonly_dynrelocs (struct elf_link_hash_entry *h)
2447 struct elf_dyn_relocs *p;
2449 for (p = metag_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2451 asection *s = p->sec->output_section;
2453 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2459 /* Adjust a symbol defined by a dynamic object and referenced by a
2460 regular object. The current definition is in some section of the
2461 dynamic object, but we're not including those sections. We have to
2462 change the definition to something the rest of the link can
2466 elf_metag_adjust_dynamic_symbol (struct bfd_link_info *info,
2467 struct elf_link_hash_entry *eh)
2469 struct elf_metag_link_hash_table *htab;
2472 /* If this is a function, put it in the procedure linkage table. We
2473 will fill in the contents of the procedure linkage table later,
2474 when we know the address of the .got section. */
2475 if (eh->type == STT_FUNC
2478 if (eh->plt.refcount <= 0
2479 || SYMBOL_CALLS_LOCAL (info, eh)
2480 || (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT
2481 && eh->root.type == bfd_link_hash_undefweak))
2483 /* This case can occur if we saw a PLT reloc in an input
2484 file, but the symbol was never referred to by a dynamic
2485 object. In such a case, we don't actually need to build
2486 a procedure linkage table, and we can just do a PCREL
2488 eh->plt.offset = (bfd_vma) -1;
2495 eh->plt.offset = (bfd_vma) -1;
2497 /* If this is a weak symbol, and there is a real definition, the
2498 processor independent code will have arranged for us to see the
2499 real definition first, and we can just use the same value. */
2500 if (eh->is_weakalias)
2502 struct elf_link_hash_entry *def = weakdef (eh);
2503 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2504 eh->root.u.def.section = def->root.u.def.section;
2505 eh->root.u.def.value = def->root.u.def.value;
2506 eh->non_got_ref = def->non_got_ref;
2510 /* This is a reference to a symbol defined by a dynamic object which
2511 is not a function. */
2513 /* If we are creating a shared library, we must presume that the
2514 only references to the symbol are via the global offset table.
2515 For such cases we need not do anything here; the relocations will
2516 be handled correctly by relocate_section. */
2517 if (bfd_link_pic (info))
2520 /* If there are no references to this symbol that do not use the
2521 GOT, we don't need to generate a copy reloc. */
2522 if (!eh->non_got_ref)
2525 /* If -z nocopyreloc was given, we won't generate them either. */
2526 if (info->nocopyreloc)
2528 eh->non_got_ref = 0;
2532 /* If we don't find any dynamic relocs in read-only sections, then
2533 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2534 if (!readonly_dynrelocs (eh))
2536 eh->non_got_ref = 0;
2540 /* We must allocate the symbol in our .dynbss section, which will
2541 become part of the .bss section of the executable. There will be
2542 an entry for this symbol in the .dynsym section. The dynamic
2543 object will contain position independent code, so all references
2544 from the dynamic object to this symbol will go through the global
2545 offset table. The dynamic linker will use the .dynsym entry to
2546 determine the address it must put in the global offset table, so
2547 both the dynamic object and the regular object will refer to the
2548 same memory location for the variable. */
2550 htab = metag_link_hash_table (info);
2552 /* We must generate a COPY reloc to tell the dynamic linker to
2553 copy the initial value out of the dynamic object and into the
2554 runtime process image. */
2555 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
2557 s = htab->etab.sdynrelro;
2558 srel = htab->etab.sreldynrelro;
2562 s = htab->etab.sdynbss;
2563 srel = htab->etab.srelbss;
2565 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
2567 srel->size += sizeof (Elf32_External_Rela);
2571 return _bfd_elf_adjust_dynamic_copy (info, eh, s);
2574 /* Allocate space in .plt, .got and associated reloc sections for
2578 allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
2580 struct bfd_link_info *info;
2581 struct elf_metag_link_hash_table *htab;
2582 struct elf_metag_link_hash_entry *hh;
2583 struct elf_dyn_relocs *hdh_p;
2585 if (eh->root.type == bfd_link_hash_indirect)
2588 if (eh->root.type == bfd_link_hash_warning)
2589 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
2592 htab = metag_link_hash_table (info);
2594 if (htab->etab.dynamic_sections_created
2595 && eh->plt.refcount > 0)
2597 /* Make sure this symbol is output as a dynamic symbol.
2598 Undefined weak syms won't yet be marked as dynamic. */
2599 if (eh->dynindx == -1
2600 && !eh->forced_local)
2602 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2606 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
2608 asection *s = htab->etab.splt;
2610 /* If this is the first .plt entry, make room for the special
2613 s->size += PLT_ENTRY_SIZE;
2615 eh->plt.offset = s->size;
2617 /* If this symbol is not defined in a regular file, and we are
2618 not generating a shared library, then set the symbol to this
2619 location in the .plt. This is required to make function
2620 pointers compare as equal between the normal executable and
2621 the shared library. */
2622 if (! bfd_link_pic (info)
2623 && !eh->def_regular)
2625 eh->root.u.def.section = s;
2626 eh->root.u.def.value = eh->plt.offset;
2629 /* Make room for this entry. */
2630 s->size += PLT_ENTRY_SIZE;
2632 /* We also need to make an entry in the .got.plt section, which
2633 will be placed in the .got section by the linker script. */
2634 htab->etab.sgotplt->size += 4;
2636 /* We also need to make an entry in the .rel.plt section. */
2637 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
2641 eh->plt.offset = (bfd_vma) -1;
2647 eh->plt.offset = (bfd_vma) -1;
2651 if (eh->got.refcount > 0)
2655 int tls_type = metag_elf_hash_entry (eh)->tls_type;
2657 /* Make sure this symbol is output as a dynamic symbol.
2658 Undefined weak syms won't yet be marked as dynamic. */
2659 if (eh->dynindx == -1
2660 && !eh->forced_local)
2662 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2666 s = htab->etab.sgot;
2668 eh->got.offset = s->size;
2670 /* R_METAG_TLS_GD needs 2 consecutive GOT slots. */
2671 if (tls_type == GOT_TLS_GD)
2673 dyn = htab->etab.dynamic_sections_created;
2674 /* R_METAG_TLS_IE needs one dynamic relocation if dynamic,
2675 R_METAG_TLS_GD needs one if local symbol and two if global. */
2676 if ((tls_type == GOT_TLS_GD && eh->dynindx == -1)
2677 || (tls_type == GOT_TLS_IE && dyn))
2678 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2679 else if (tls_type == GOT_TLS_GD)
2680 htab->etab.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2681 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2682 bfd_link_pic (info),
2684 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2687 eh->got.offset = (bfd_vma) -1;
2689 hh = (struct elf_metag_link_hash_entry *) eh;
2690 if (hh->dyn_relocs == NULL)
2693 /* If this is a -Bsymbolic shared link, then we need to discard all
2694 space allocated for dynamic pc-relative relocs against symbols
2695 defined in a regular object. For the normal shared case, discard
2696 space for relocs that have become local due to symbol visibility
2698 if (bfd_link_pic (info))
2700 if (SYMBOL_CALLS_LOCAL (info, eh))
2702 struct elf_dyn_relocs **hdh_pp;
2704 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2706 hdh_p->count -= hdh_p->pc_count;
2707 hdh_p->pc_count = 0;
2708 if (hdh_p->count == 0)
2709 *hdh_pp = hdh_p->next;
2711 hdh_pp = &hdh_p->next;
2715 /* Also discard relocs on undefined weak syms with non-default
2717 if (hh->dyn_relocs != NULL
2718 && eh->root.type == bfd_link_hash_undefweak)
2720 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2721 hh->dyn_relocs = NULL;
2723 /* Make sure undefined weak symbols are output as a dynamic
2725 else if (eh->dynindx == -1
2726 && !eh->forced_local)
2728 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2735 /* For the non-shared case, discard space for relocs against
2736 symbols which turn out to need copy relocs or are not
2738 if (!eh->non_got_ref
2739 && ((eh->def_dynamic
2740 && !eh->def_regular)
2741 || (htab->etab.dynamic_sections_created
2742 && (eh->root.type == bfd_link_hash_undefweak
2743 || eh->root.type == bfd_link_hash_undefined))))
2745 /* Make sure this symbol is output as a dynamic symbol.
2746 Undefined weak syms won't yet be marked as dynamic. */
2747 if (eh->dynindx == -1
2748 && !eh->forced_local)
2750 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2754 /* If that succeeded, we know we'll be keeping all the
2756 if (eh->dynindx != -1)
2760 hh->dyn_relocs = NULL;
2766 /* Finally, allocate space. */
2767 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
2769 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2770 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2776 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2777 read-only sections. */
2780 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2784 if (h->root.type == bfd_link_hash_indirect)
2787 sec = readonly_dynrelocs (h);
2790 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2792 info->flags |= DF_TEXTREL;
2793 info->callbacks->minfo
2794 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2795 sec->owner, h->root.root.string, sec);
2797 /* Not an error, just cut short the traversal. */
2803 /* Set the sizes of the dynamic sections. */
2806 elf_metag_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2807 struct bfd_link_info *info)
2809 struct elf_metag_link_hash_table *htab;
2815 htab = metag_link_hash_table (info);
2816 dynobj = htab->etab.dynobj;
2820 if (htab->etab.dynamic_sections_created)
2822 /* Set the contents of the .interp section to the interpreter. */
2823 if (bfd_link_executable (info) && !info->nointerp)
2825 s = bfd_get_linker_section (dynobj, ".interp");
2828 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2829 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2833 /* Set up .got offsets for local syms, and space for local dynamic
2835 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2837 bfd_signed_vma *local_got;
2838 bfd_signed_vma *end_local_got;
2839 bfd_size_type locsymcount;
2840 Elf_Internal_Shdr *symtab_hdr;
2842 char *local_tls_type;
2844 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2847 for (s = ibfd->sections; s != NULL; s = s->next)
2849 struct elf_dyn_relocs *hdh_p;
2851 for (hdh_p = ((struct elf_dyn_relocs *)
2852 elf_section_data (s)->local_dynrel);
2854 hdh_p = hdh_p->next)
2856 if (!bfd_is_abs_section (hdh_p->sec)
2857 && bfd_is_abs_section (hdh_p->sec->output_section))
2859 /* Input section has been discarded, either because
2860 it is a copy of a linkonce section or due to
2861 linker script /DISCARD/, so we'll be discarding
2864 else if (hdh_p->count != 0)
2866 srel = elf_section_data (hdh_p->sec)->sreloc;
2867 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2868 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2869 info->flags |= DF_TEXTREL;
2874 local_got = elf_local_got_refcounts (ibfd);
2878 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2879 locsymcount = symtab_hdr->sh_info;
2880 end_local_got = local_got + locsymcount;
2881 local_tls_type = metag_elf_local_got_tls_type (ibfd);
2882 s = htab->etab.sgot;
2883 srel = htab->etab.srelgot;
2884 for (; local_got < end_local_got; ++local_got)
2888 *local_got = s->size;
2889 s->size += GOT_ENTRY_SIZE;
2890 /* R_METAG_TLS_GD relocs need 2 consecutive GOT entries. */
2891 if (*local_tls_type == GOT_TLS_GD)
2893 if (bfd_link_pic (info))
2894 srel->size += sizeof (Elf32_External_Rela);
2897 *local_got = (bfd_vma) -1;
2902 if (htab->tls_ldm_got.refcount > 0)
2904 /* Allocate 2 got entries and 1 dynamic reloc for R_METAG_TLS_LDM
2906 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2907 htab->etab.sgot->size += 8;
2908 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2911 htab->tls_ldm_got.offset = -1;
2913 /* Allocate global sym .plt and .got entries, and space for global
2914 sym dynamic relocs. */
2915 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2917 /* We now have determined the sizes of the various dynamic sections.
2918 Allocate memory for them. */
2920 for (s = dynobj->sections; s != NULL; s = s->next)
2922 bfd_boolean reloc_section = FALSE;
2924 if ((s->flags & SEC_LINKER_CREATED) == 0)
2927 if (s == htab->etab.splt
2928 || s == htab->etab.sgot
2929 || s == htab->etab.sgotplt
2930 || s == htab->etab.sdynbss
2931 || s == htab->etab.sdynrelro)
2933 /* Strip this section if we don't need it; see the
2936 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2938 if (s->size != 0 && s != htab->etab.srelplt)
2941 /* We use the reloc_count field as a counter if we need
2942 to copy relocs into the output file. */
2944 reloc_section = TRUE;
2948 /* It's not one of our sections, so don't allocate space. */
2954 /* If we don't need this section, strip it from the
2955 output file. This is mostly to handle .rela.bss and
2956 .rela.plt. We must create both sections in
2957 create_dynamic_sections, because they must be created
2958 before the linker maps input sections to output
2959 sections. The linker does that before
2960 adjust_dynamic_symbol is called, and it is that
2961 function which decides whether anything needs to go
2962 into these sections. */
2963 s->flags |= SEC_EXCLUDE;
2967 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2970 /* Allocate memory for the section contents. */
2971 s->contents = bfd_zalloc (dynobj, s->size);
2972 if (s->contents == NULL)
2974 else if (reloc_section)
2976 unsigned char *contents = s->contents;
2977 Elf32_External_Rela reloc;
2979 /* Fill the reloc section with a R_METAG_NONE type reloc. */
2980 memset(&reloc, 0, sizeof(Elf32_External_Rela));
2981 reloc.r_info[0] = R_METAG_NONE;
2982 for (; contents < (s->contents + s->size);
2983 contents += sizeof(Elf32_External_Rela))
2985 memcpy(contents, &reloc, sizeof(Elf32_External_Rela));
2990 if (htab->etab.dynamic_sections_created)
2992 /* Add some entries to the .dynamic section. We fill in the
2993 values later, in elf_metag_finish_dynamic_sections, but we
2994 must add the entries now so that we get the correct size for
2995 the .dynamic section. The DT_DEBUG entry is filled in by the
2996 dynamic linker and used by the debugger. */
2997 #define add_dynamic_entry(TAG, VAL) \
2998 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3000 if (!add_dynamic_entry (DT_PLTGOT, 0))
3003 if (bfd_link_executable (info))
3005 if (!add_dynamic_entry (DT_DEBUG, 0))
3009 if (htab->etab.srelplt->size != 0)
3011 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
3012 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3013 || !add_dynamic_entry (DT_JMPREL, 0))
3019 if (!add_dynamic_entry (DT_RELA, 0)
3020 || !add_dynamic_entry (DT_RELASZ, 0)
3021 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3024 /* If any dynamic relocs apply to a read-only section,
3025 then we need a DT_TEXTREL entry. */
3026 if ((info->flags & DF_TEXTREL) == 0)
3027 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
3029 if ((info->flags & DF_TEXTREL) != 0)
3031 if (!add_dynamic_entry (DT_TEXTREL, 0))
3036 #undef add_dynamic_entry
3041 /* Finish up dynamic symbol handling. We set the contents of various
3042 dynamic sections here. */
3045 elf_metag_finish_dynamic_symbol (bfd *output_bfd,
3046 struct bfd_link_info *info,
3047 struct elf_link_hash_entry *eh,
3048 Elf_Internal_Sym *sym)
3050 struct elf_metag_link_hash_table *htab;
3051 Elf_Internal_Rela rel;
3054 htab = metag_link_hash_table (info);
3056 if (eh->plt.offset != (bfd_vma) -1)
3066 if (eh->plt.offset & 1)
3069 BFD_ASSERT (eh->dynindx != -1);
3071 splt = htab->etab.splt;
3072 sgot = htab->etab.sgotplt;
3073 srela = htab->etab.srelplt;
3074 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3076 /* Get the index in the procedure linkage table which
3077 corresponds to this symbol. This is the index of this symbol
3078 in all the symbols for which we are making plt entries. The
3079 first entry in the procedure linkage table is reserved. */
3080 plt_index = eh->plt.offset / PLT_ENTRY_SIZE - 1;
3082 /* Get the offset into the .got.plt table of the entry that
3083 corresponds to this function. */
3084 got_offset = plt_index * GOT_ENTRY_SIZE;
3086 BFD_ASSERT (got_offset < (1 << 16));
3088 got_entry = sgot->output_section->vma
3089 + sgot->output_offset
3092 BFD_ASSERT (plt_index < (1 << 16));
3094 /* Fill in the entry in the procedure linkage table. */
3095 if (! bfd_link_pic (info))
3097 bfd_put_32 (output_bfd,
3099 | (((got_entry >> 16) & 0xffff) << 3)),
3100 splt->contents + eh->plt.offset);
3101 bfd_put_32 (output_bfd,
3103 | ((got_entry & 0xffff) << 3)),
3104 splt->contents + eh->plt.offset + 4);
3105 bfd_put_32 (output_bfd, plt_entry[2],
3106 splt->contents + eh->plt.offset + 8);
3107 bfd_put_32 (output_bfd,
3108 (plt_entry[3] | (plt_index << 3)),
3109 splt->contents + eh->plt.offset + 12);
3110 bfd_put_32 (output_bfd,
3112 | ((((unsigned int) ((- (eh->plt.offset + 16)) >> 2)) & 0x7ffff) << 5)),
3113 splt->contents + eh->plt.offset + 16);
3117 bfd_vma addr = got_entry - (splt->output_section->vma +
3118 splt->output_offset + eh->plt.offset);
3120 bfd_put_32 (output_bfd,
3121 plt_pic_entry[0] | (((addr >> 16) & 0xffff) << 3),
3122 splt->contents + eh->plt.offset);
3123 bfd_put_32 (output_bfd,
3124 plt_pic_entry[1] | ((addr & 0xffff) << 3),
3125 splt->contents + eh->plt.offset + 4);
3126 bfd_put_32 (output_bfd, plt_pic_entry[2],
3127 splt->contents + eh->plt.offset + 8);
3128 bfd_put_32 (output_bfd,
3129 (plt_pic_entry[3] | (plt_index << 3)),
3130 splt->contents + eh->plt.offset + 12);
3131 bfd_put_32 (output_bfd,
3133 + ((((unsigned int) ((- (eh->plt.offset + 16)) >> 2)) & 0x7ffff) << 5)),
3134 splt->contents + eh->plt.offset + 16);
3137 /* Fill in the entry in the global offset table. */
3138 bfd_put_32 (output_bfd,
3139 (splt->output_section->vma
3140 + splt->output_offset
3142 + 12), /* offset within PLT entry */
3143 sgot->contents + got_offset);
3145 /* Fill in the entry in the .rela.plt section. */
3146 rel.r_offset = (sgot->output_section->vma
3147 + sgot->output_offset
3149 rel.r_info = ELF32_R_INFO (eh->dynindx, R_METAG_JMP_SLOT);
3151 loc = htab->etab.srelplt->contents;
3152 loc += plt_index * sizeof(Elf32_External_Rela);
3153 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
3155 if (!eh->def_regular)
3157 /* Mark the symbol as undefined, rather than as defined in
3158 the .plt section. Leave the value alone. */
3159 sym->st_shndx = SHN_UNDEF;
3163 if (eh->got.offset != (bfd_vma) -1
3164 && (metag_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
3165 && (metag_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
3167 /* This symbol has an entry in the global offset table. Set it
3170 rel.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
3171 + htab->etab.sgot->output_offset
3172 + htab->etab.sgot->output_section->vma);
3174 /* If this is a -Bsymbolic link and the symbol is defined
3175 locally or was forced to be local because of a version file,
3176 we just want to emit a RELATIVE reloc. The entry in the
3177 global offset table will already have been initialized in the
3178 relocate_section function. */
3179 if (bfd_link_pic (info)
3180 && (info->symbolic || eh->dynindx == -1)
3183 rel.r_info = ELF32_R_INFO (0, R_METAG_RELATIVE);
3184 rel.r_addend = (eh->root.u.def.value
3185 + eh->root.u.def.section->output_offset
3186 + eh->root.u.def.section->output_section->vma);
3190 if ((eh->got.offset & 1) != 0)
3192 bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + eh->got.offset);
3193 rel.r_info = ELF32_R_INFO (eh->dynindx, R_METAG_GLOB_DAT);
3197 loc = htab->etab.srelgot->contents;
3198 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3199 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
3206 /* This symbol needs a copy reloc. Set it up. */
3208 if (! (eh->dynindx != -1
3209 && (eh->root.type == bfd_link_hash_defined
3210 || eh->root.type == bfd_link_hash_defweak)))
3213 rel.r_offset = (eh->root.u.def.value
3214 + eh->root.u.def.section->output_offset
3215 + eh->root.u.def.section->output_section->vma);
3217 rel.r_info = ELF32_R_INFO (eh->dynindx, R_METAG_COPY);
3218 if (eh->root.u.def.section == htab->etab.sdynrelro)
3219 s = htab->etab.sreldynrelro;
3221 s = htab->etab.srelbss;
3222 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
3223 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
3226 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
3227 if (eh->root.root.string[0] == '_'
3228 && (strcmp (eh->root.root.string, "_DYNAMIC") == 0
3229 || eh == htab->etab.hgot))
3231 sym->st_shndx = SHN_ABS;
3237 /* Set the Meta ELF ABI version. */
3240 elf_metag_post_process_headers (bfd * abfd, struct bfd_link_info * link_info)
3242 Elf_Internal_Ehdr * i_ehdrp; /* ELF file header, internal form. */
3244 _bfd_elf_post_process_headers (abfd, link_info);
3245 i_ehdrp = elf_elfheader (abfd);
3246 i_ehdrp->e_ident[EI_ABIVERSION] = METAG_ELF_ABI_VERSION;
3249 /* Used to decide how to sort relocs in an optimal manner for the
3250 dynamic linker, before writing them out. */
3252 static enum elf_reloc_type_class
3253 elf_metag_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3254 const asection *rel_sec ATTRIBUTE_UNUSED,
3255 const Elf_Internal_Rela *rela)
3257 switch ((int) ELF32_R_TYPE (rela->r_info))
3259 case R_METAG_RELATIVE:
3260 return reloc_class_relative;
3261 case R_METAG_JMP_SLOT:
3262 return reloc_class_plt;
3264 return reloc_class_copy;
3266 return reloc_class_normal;
3270 /* Finish up the dynamic sections. */
3273 elf_metag_finish_dynamic_sections (bfd *output_bfd,
3274 struct bfd_link_info *info)
3277 struct elf_metag_link_hash_table *htab;
3280 htab = metag_link_hash_table (info);
3281 dynobj = htab->etab.dynobj;
3283 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3285 if (htab->etab.dynamic_sections_created)
3288 Elf32_External_Dyn *dyncon, *dynconend;
3293 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3294 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3295 for (; dyncon < dynconend; dyncon++)
3297 Elf_Internal_Dyn dyn;
3300 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3308 s = htab->etab.sgot;
3309 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3310 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3314 s = htab->etab.srelplt;
3315 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3316 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3320 s = htab->etab.srelplt;
3321 dyn.d_un.d_val = s->size;
3322 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3328 /* Fill in the first entry in the procedure linkage table. */
3329 splt = htab->etab.splt;
3330 if (splt && splt->size > 0)
3333 /* addr = .got + 4 */
3334 addr = (htab->etab.sgot->output_section->vma
3335 + htab->etab.sgot->output_offset + 4);
3336 if (bfd_link_pic (info))
3338 addr -= splt->output_section->vma + splt->output_offset;
3339 bfd_put_32 (output_bfd,
3340 plt0_pic_entry[0] | (((addr >> 16) & 0xffff) << 3),
3342 bfd_put_32 (output_bfd,
3343 plt0_pic_entry[1] | ((addr & 0xffff) << 3),
3344 splt->contents + 4);
3345 bfd_put_32 (output_bfd, plt0_pic_entry[2], splt->contents + 8);
3346 bfd_put_32 (output_bfd, plt0_pic_entry[3], splt->contents + 12);
3347 bfd_put_32 (output_bfd, plt0_pic_entry[4], splt->contents + 16);
3351 bfd_put_32 (output_bfd,
3352 plt0_entry[0] | (((addr >> 16) & 0xffff) << 3),
3354 bfd_put_32 (output_bfd,
3355 plt0_entry[1] | ((addr & 0xffff) << 3),
3356 splt->contents + 4);
3357 bfd_put_32 (output_bfd, plt0_entry[2], splt->contents + 8);
3358 bfd_put_32 (output_bfd, plt0_entry[3], splt->contents + 12);
3359 bfd_put_32 (output_bfd, plt0_entry[4], splt->contents + 16);
3362 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3367 if (htab->etab.sgot != NULL && htab->etab.sgot->size != 0)
3369 /* Fill in the first entry in the global offset table.
3370 We use it to point to our dynamic section, if we have one. */
3371 bfd_put_32 (output_bfd,
3372 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
3373 htab->etab.sgot->contents);
3375 /* The second entry is reserved for use by the dynamic linker. */
3376 memset (htab->etab.sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
3378 /* Set .got entry size. */
3379 elf_section_data (htab->etab.sgot->output_section)
3380 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
3386 /* Return the section that should be marked against GC for a given
3390 elf_metag_gc_mark_hook (asection *sec,
3391 struct bfd_link_info *info,
3392 Elf_Internal_Rela *rela,
3393 struct elf_link_hash_entry *hh,
3394 Elf_Internal_Sym *sym)
3397 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
3399 case R_METAG_GNU_VTINHERIT:
3400 case R_METAG_GNU_VTENTRY:
3404 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
3407 /* Determine the type of stub needed, if any, for a call. */
3409 static enum elf_metag_stub_type
3410 metag_type_of_stub (asection *input_sec,
3411 const Elf_Internal_Rela *rel,
3412 struct elf_metag_link_hash_entry *hh,
3413 bfd_vma destination,
3414 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3417 bfd_vma branch_offset;
3418 bfd_vma max_branch_offset;
3421 !(hh->eh.root.type == bfd_link_hash_defined
3422 || hh->eh.root.type == bfd_link_hash_defweak))
3423 return metag_stub_none;
3425 /* Determine where the call point is. */
3426 location = (input_sec->output_offset
3427 + input_sec->output_section->vma
3430 branch_offset = destination - location;
3432 /* Determine if a long branch stub is needed. Meta branch offsets
3433 are signed 19 bits 4 byte aligned. */
3434 max_branch_offset = (1 << (BRANCH_BITS-1)) << 2;
3436 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
3438 if (bfd_link_pic (info))
3439 return metag_stub_long_branch_shared;
3441 return metag_stub_long_branch;
3444 return metag_stub_none;
3447 #define MOVT_A0_3 0x82180005
3448 #define JUMP_A0_3 0xac180003
3450 #define MOVT_A1LBP 0x83080005
3451 #define ADD_A1LBP 0x83080000
3453 #define ADDT_A0_3_CPC 0x82980001
3454 #define ADD_A0_3_A0_3 0x82180000
3455 #define MOV_PC_A0_3 0xa3180ca0
3458 metag_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg ATTRIBUTE_UNUSED)
3460 struct elf_metag_stub_hash_entry *hsh;
3467 /* Massage our args to the form they really have. */
3468 hsh = (struct elf_metag_stub_hash_entry *) gen_entry;
3470 stub_sec = hsh->stub_sec;
3472 /* Make a note of the offset within the stubs for this entry. */
3473 hsh->stub_offset = stub_sec->size;
3474 loc = stub_sec->contents + hsh->stub_offset;
3476 stub_bfd = stub_sec->owner;
3478 switch (hsh->stub_type)
3480 case metag_stub_long_branch_shared:
3481 /* A PIC long branch stub is an ADDT and an ADD instruction used to
3482 calculate the jump target using A0.3 as a temporary. Then a MOV
3483 to PC carries out the jump. */
3484 sym_value = (hsh->target_value
3485 + hsh->target_section->output_offset
3486 + hsh->target_section->output_section->vma
3489 sym_value -= (hsh->stub_offset
3490 + stub_sec->output_offset
3491 + stub_sec->output_section->vma);
3493 bfd_put_32 (stub_bfd, ADDT_A0_3_CPC | (((sym_value >> 16) & 0xffff) << 3),
3496 bfd_put_32 (stub_bfd, ADD_A0_3_A0_3 | ((sym_value & 0xffff) << 3),
3499 bfd_put_32 (stub_bfd, MOV_PC_A0_3, loc + 8);
3503 case metag_stub_long_branch:
3504 /* A standard long branch stub is a MOVT instruction followed by a
3505 JUMP instruction using the A0.3 register as a temporary. This is
3506 the same method used by the LDLK linker (patch.c). */
3507 sym_value = (hsh->target_value
3508 + hsh->target_section->output_offset
3509 + hsh->target_section->output_section->vma
3512 bfd_put_32 (stub_bfd, MOVT_A0_3 | (((sym_value >> 16) & 0xffff) << 3),
3515 bfd_put_32 (stub_bfd, JUMP_A0_3 | ((sym_value & 0xffff) << 3), loc + 4);
3524 stub_sec->size += size;
3528 /* As above, but don't actually build the stub. Just bump offset so
3529 we know stub section sizes. */
3532 metag_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg ATTRIBUTE_UNUSED)
3534 struct elf_metag_stub_hash_entry *hsh;
3537 /* Massage our args to the form they really have. */
3538 hsh = (struct elf_metag_stub_hash_entry *) gen_entry;
3540 if (hsh->stub_type == metag_stub_long_branch)
3542 else if (hsh->stub_type == metag_stub_long_branch_shared)
3545 hsh->stub_sec->size += size;
3549 /* Set up various things so that we can make a list of input sections
3550 for each output section included in the link. Returns -1 on error,
3551 0 when no stubs will be needed, and 1 on success. */
3554 elf_metag_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
3557 unsigned int bfd_count;
3558 unsigned int top_id, top_index;
3560 asection **input_list, **list;
3562 struct elf_metag_link_hash_table *htab = metag_link_hash_table (info);
3564 /* Count the number of input BFDs and find the top input section id. */
3565 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
3567 input_bfd = input_bfd->link.next)
3570 for (section = input_bfd->sections;
3572 section = section->next)
3574 if (top_id < section->id)
3575 top_id = section->id;
3579 htab->bfd_count = bfd_count;
3581 amt = sizeof (struct map_stub) * (top_id + 1);
3582 htab->stub_group = bfd_zmalloc (amt);
3583 if (htab->stub_group == NULL)
3586 /* We can't use output_bfd->section_count here to find the top output
3587 section index as some sections may have been removed, and
3588 strip_excluded_output_sections doesn't renumber the indices. */
3589 for (section = output_bfd->sections, top_index = 0;
3591 section = section->next)
3593 if (top_index < section->index)
3594 top_index = section->index;
3597 htab->top_index = top_index;
3598 amt = sizeof (asection *) * (top_index + 1);
3599 input_list = bfd_malloc (amt);
3600 htab->input_list = input_list;
3601 if (input_list == NULL)
3604 /* For sections we aren't interested in, mark their entries with a
3605 value we can check later. */
3606 list = input_list + top_index;
3608 *list = bfd_abs_section_ptr;
3609 while (list-- != input_list);
3611 for (section = output_bfd->sections;
3613 section = section->next)
3615 /* FIXME: This is a bit of hack. Currently our .ctors and .dtors
3616 * have PC relative relocs in them but no code flag set. */
3617 if (((section->flags & SEC_CODE) != 0) ||
3618 strcmp(".ctors", section->name) ||
3619 strcmp(".dtors", section->name))
3620 input_list[section->index] = NULL;
3626 /* The linker repeatedly calls this function for each input section,
3627 in the order that input sections are linked into output sections.
3628 Build lists of input sections to determine groupings between which
3629 we may insert linker stubs. */
3632 elf_metag_next_input_section (struct bfd_link_info *info, asection *isec)
3634 struct elf_metag_link_hash_table *htab = metag_link_hash_table (info);
3636 if (isec->output_section->index <= htab->top_index)
3638 asection **list = htab->input_list + isec->output_section->index;
3639 if (*list != bfd_abs_section_ptr)
3641 /* Steal the link_sec pointer for our list. */
3642 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3643 /* This happens to make the list in reverse order,
3644 which is what we want. */
3645 PREV_SEC (isec) = *list;
3651 /* See whether we can group stub sections together. Grouping stub
3652 sections may result in fewer stubs. More importantly, we need to
3653 put all .init* and .fini* stubs at the beginning of the .init or
3654 .fini output sections respectively, because glibc splits the
3655 _init and _fini functions into multiple parts. Putting a stub in
3656 the middle of a function is not a good idea. */
3659 group_sections (struct elf_metag_link_hash_table *htab,
3660 bfd_size_type stub_group_size,
3661 bfd_boolean stubs_always_before_branch)
3663 asection **list = htab->input_list + htab->top_index;
3666 asection *tail = *list;
3667 if (tail == bfd_abs_section_ptr)
3669 while (tail != NULL)
3673 bfd_size_type total;
3674 bfd_boolean big_sec;
3678 big_sec = total >= stub_group_size;
3680 while ((prev = PREV_SEC (curr)) != NULL
3681 && ((total += curr->output_offset - prev->output_offset)
3685 /* OK, the size from the start of CURR to the end is less
3686 than stub_group_size bytes and thus can be handled by one stub
3687 section. (or the tail section is itself larger than
3688 stub_group_size bytes, in which case we may be toast.)
3689 We should really be keeping track of the total size of
3690 stubs added here, as stubs contribute to the final output
3694 prev = PREV_SEC (tail);
3695 /* Set up this stub group. */
3696 htab->stub_group[tail->id].link_sec = curr;
3698 while (tail != curr && (tail = prev) != NULL);
3700 /* But wait, there's more! Input sections up to stub_group_size
3701 bytes before the stub section can be handled by it too.
3702 Don't do this if we have a really large section after the
3703 stubs, as adding more stubs increases the chance that
3704 branches may not reach into the stub section. */
3705 if (!stubs_always_before_branch && !big_sec)
3709 && ((total += tail->output_offset - prev->output_offset)
3713 prev = PREV_SEC (tail);
3714 htab->stub_group[tail->id].link_sec = curr;
3720 while (list-- != htab->input_list);
3721 free (htab->input_list);
3725 /* Read in all local syms for all input bfds.
3726 Returns -1 on error, 0 otherwise. */
3729 get_local_syms (bfd *output_bfd ATTRIBUTE_UNUSED, bfd *input_bfd,
3730 struct bfd_link_info *info)
3732 unsigned int bfd_indx;
3733 Elf_Internal_Sym *local_syms, **all_local_syms;
3734 int stub_changed = 0;
3735 struct elf_metag_link_hash_table *htab = metag_link_hash_table (info);
3737 /* We want to read in symbol extension records only once. To do this
3738 we need to read in the local symbols in parallel and save them for
3739 later use; so hold pointers to the local symbols in an array. */
3740 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
3741 all_local_syms = bfd_zmalloc (amt);
3742 htab->all_local_syms = all_local_syms;
3743 if (all_local_syms == NULL)
3746 /* Walk over all the input BFDs, swapping in local symbols. */
3749 input_bfd = input_bfd->link.next, bfd_indx++)
3751 Elf_Internal_Shdr *symtab_hdr;
3753 /* We'll need the symbol table in a second. */
3754 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3755 if (symtab_hdr->sh_info == 0)
3758 /* We need an array of the local symbols attached to the input bfd. */
3759 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
3760 if (local_syms == NULL)
3762 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
3763 symtab_hdr->sh_info, 0,
3765 /* Cache them for elf_link_input_bfd. */
3766 symtab_hdr->contents = (unsigned char *) local_syms;
3768 if (local_syms == NULL)
3771 all_local_syms[bfd_indx] = local_syms;
3774 return stub_changed;
3777 /* Determine and set the size of the stub section for a final link.
3779 The basic idea here is to examine all the relocations looking for
3780 PC-relative calls to a target that is unreachable with a "CALLR"
3783 /* See elf32-hppa.c and elf64-ppc.c. */
3786 elf_metag_size_stubs(bfd *output_bfd, bfd *stub_bfd,
3787 struct bfd_link_info *info,
3788 bfd_signed_vma group_size,
3789 asection * (*add_stub_section) (const char *, asection *),
3790 void (*layout_sections_again) (void))
3792 bfd_size_type stub_group_size;
3793 bfd_boolean stubs_always_before_branch;
3794 bfd_boolean stub_changed;
3795 struct elf_metag_link_hash_table *htab = metag_link_hash_table (info);
3797 /* Stash our params away. */
3798 htab->stub_bfd = stub_bfd;
3799 htab->add_stub_section = add_stub_section;
3800 htab->layout_sections_again = layout_sections_again;
3801 stubs_always_before_branch = group_size < 0;
3803 stub_group_size = -group_size;
3805 stub_group_size = group_size;
3806 if (stub_group_size == 1)
3808 /* Default values. */
3809 /* FIXME: not sure what these values should be */
3810 if (stubs_always_before_branch)
3812 stub_group_size = (1 << BRANCH_BITS);
3816 stub_group_size = (1 << BRANCH_BITS);
3820 group_sections (htab, stub_group_size, stubs_always_before_branch);
3822 switch (get_local_syms (output_bfd, info->input_bfds, info))
3825 if (htab->all_local_syms)
3826 goto error_ret_free_local;
3830 stub_changed = FALSE;
3834 stub_changed = TRUE;
3841 unsigned int bfd_indx;
3844 for (input_bfd = info->input_bfds, bfd_indx = 0;
3846 input_bfd = input_bfd->link.next, bfd_indx++)
3848 Elf_Internal_Shdr *symtab_hdr;
3850 Elf_Internal_Sym *local_syms;
3852 /* We'll need the symbol table in a second. */
3853 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3854 if (symtab_hdr->sh_info == 0)
3857 local_syms = htab->all_local_syms[bfd_indx];
3859 /* Walk over each section attached to the input bfd. */
3860 for (section = input_bfd->sections;
3862 section = section->next)
3864 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
3866 /* If there aren't any relocs, then there's nothing more
3868 if ((section->flags & SEC_RELOC) == 0
3869 || section->reloc_count == 0)
3872 /* If this section is a link-once section that will be
3873 discarded, then don't create any stubs. */
3874 if (section->output_section == NULL
3875 || section->output_section->owner != output_bfd)
3878 /* Get the relocs. */
3880 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
3882 if (internal_relocs == NULL)
3883 goto error_ret_free_local;
3885 /* Now examine each relocation. */
3886 irela = internal_relocs;
3887 irelaend = irela + section->reloc_count;
3888 for (; irela < irelaend; irela++)
3890 unsigned int r_type, r_indx;
3891 enum elf_metag_stub_type stub_type;
3892 struct elf_metag_stub_hash_entry *hsh;
3895 bfd_vma destination;
3896 struct elf_metag_link_hash_entry *hh;
3898 const asection *id_sec;
3900 r_type = ELF32_R_TYPE (irela->r_info);
3901 r_indx = ELF32_R_SYM (irela->r_info);
3903 if (r_type >= (unsigned int) R_METAG_MAX)
3905 bfd_set_error (bfd_error_bad_value);
3906 error_ret_free_internal:
3907 if (elf_section_data (section)->relocs == NULL)
3908 free (internal_relocs);
3909 goto error_ret_free_local;
3912 /* Only look for stubs on CALLR and B instructions. */
3913 if (!(r_type == (unsigned int) R_METAG_RELBRANCH ||
3914 r_type == (unsigned int) R_METAG_RELBRANCH_PLT))
3917 /* Now determine the call target, its name, value,
3923 if (r_indx < symtab_hdr->sh_info)
3925 /* It's a local symbol. */
3926 Elf_Internal_Sym *sym;
3927 Elf_Internal_Shdr *hdr;
3930 sym = local_syms + r_indx;
3931 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
3932 sym_value = sym->st_value;
3933 shndx = sym->st_shndx;
3934 if (shndx < elf_numsections (input_bfd))
3936 hdr = elf_elfsections (input_bfd)[shndx];
3937 sym_sec = hdr->bfd_section;
3938 destination = (sym_value + irela->r_addend
3939 + sym_sec->output_offset
3940 + sym_sec->output_section->vma);
3945 /* It's an external symbol. */
3948 e_indx = r_indx - symtab_hdr->sh_info;
3949 hh = ((struct elf_metag_link_hash_entry *)
3950 elf_sym_hashes (input_bfd)[e_indx]);
3952 while (hh->eh.root.type == bfd_link_hash_indirect
3953 || hh->eh.root.type == bfd_link_hash_warning)
3954 hh = ((struct elf_metag_link_hash_entry *)
3955 hh->eh.root.u.i.link);
3957 if (hh->eh.root.type == bfd_link_hash_defined
3958 || hh->eh.root.type == bfd_link_hash_defweak)
3960 sym_sec = hh->eh.root.u.def.section;
3961 sym_value = hh->eh.root.u.def.value;
3962 if (hh->eh.plt.offset != (bfd_vma) -1
3963 && hh->eh.dynindx != -1
3964 && r_type == (unsigned int) R_METAG_RELBRANCH_PLT)
3966 sym_sec = htab->etab.splt;
3967 sym_value = hh->eh.plt.offset;
3970 if (sym_sec->output_section != NULL)
3971 destination = (sym_value + irela->r_addend
3972 + sym_sec->output_offset
3973 + sym_sec->output_section->vma);
3977 else if (hh->eh.root.type == bfd_link_hash_undefweak)
3979 if (! bfd_link_pic (info))
3982 else if (hh->eh.root.type == bfd_link_hash_undefined)
3984 if (! (info->unresolved_syms_in_objects == RM_IGNORE
3985 && (ELF_ST_VISIBILITY (hh->eh.other)
3991 bfd_set_error (bfd_error_bad_value);
3992 goto error_ret_free_internal;
3996 /* Determine what (if any) linker stub is needed. */
3997 stub_type = metag_type_of_stub (section, irela, hh,
3999 if (stub_type == metag_stub_none)
4002 /* Support for grouping stub sections. */
4003 id_sec = htab->stub_group[section->id].link_sec;
4005 /* Get the name of this stub. */
4006 stub_name = metag_stub_name (id_sec, sym_sec, hh, irela);
4008 goto error_ret_free_internal;
4010 hsh = metag_stub_hash_lookup (&htab->bstab,
4015 /* The proper stub has already been created. */
4020 hsh = metag_add_stub (stub_name, section, htab);
4024 goto error_ret_free_internal;
4026 hsh->target_value = sym_value;
4027 hsh->target_section = sym_sec;
4028 hsh->stub_type = stub_type;
4030 hsh->addend = irela->r_addend;
4031 stub_changed = TRUE;
4034 /* We're done with the internal relocs, free them. */
4035 if (elf_section_data (section)->relocs == NULL)
4036 free (internal_relocs);
4043 /* OK, we've added some stubs. Find out the new size of the
4045 for (stub_sec = htab->stub_bfd->sections;
4047 stub_sec = stub_sec->next)
4050 bfd_hash_traverse (&htab->bstab, metag_size_one_stub, htab);
4052 /* Ask the linker to do its stuff. */
4053 (*htab->layout_sections_again) ();
4054 stub_changed = FALSE;
4057 free (htab->all_local_syms);
4060 error_ret_free_local:
4061 free (htab->all_local_syms);
4065 /* Build all the stubs associated with the current output file. The
4066 stubs are kept in a hash table attached to the main linker hash
4067 table. This function is called via metagelf_finish in the linker. */
4070 elf_metag_build_stubs (struct bfd_link_info *info)
4073 struct bfd_hash_table *table;
4074 struct elf_metag_link_hash_table *htab;
4076 htab = metag_link_hash_table (info);
4078 for (stub_sec = htab->stub_bfd->sections;
4080 stub_sec = stub_sec->next)
4084 /* Allocate memory to hold the linker stubs. */
4085 size = stub_sec->size;
4086 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
4087 if (stub_sec->contents == NULL && size != 0)
4092 /* Build the stubs as directed by the stub hash table. */
4093 table = &htab->bstab;
4094 bfd_hash_traverse (table, metag_build_one_stub, info);
4099 /* Return TRUE if SYM represents a local label symbol. */
4102 elf_metag_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
4104 if (name[0] == '$' && name[1] == 'L')
4106 return _bfd_elf_is_local_label_name (abfd, name);
4109 /* Return address for Ith PLT stub in section PLT, for relocation REL
4110 or (bfd_vma) -1 if it should not be included. */
4113 elf_metag_plt_sym_val (bfd_vma i, const asection *plt,
4114 const arelent *rel ATTRIBUTE_UNUSED)
4116 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
4119 #define ELF_ARCH bfd_arch_metag
4120 #define ELF_TARGET_ID METAG_ELF_DATA
4121 #define ELF_MACHINE_CODE EM_METAG
4122 #define ELF_MINPAGESIZE 0x1000
4123 #define ELF_MAXPAGESIZE 0x4000
4124 #define ELF_COMMONPAGESIZE 0x1000
4126 #define TARGET_LITTLE_SYM metag_elf32_vec
4127 #define TARGET_LITTLE_NAME "elf32-metag"
4129 #define elf_symbol_leading_char '_'
4131 #define elf_info_to_howto_rel NULL
4132 #define elf_info_to_howto metag_info_to_howto_rela
4134 #define bfd_elf32_bfd_is_local_label_name elf_metag_is_local_label_name
4135 #define bfd_elf32_bfd_link_hash_table_create \
4136 elf_metag_link_hash_table_create
4137 #define elf_backend_relocate_section elf_metag_relocate_section
4138 #define elf_backend_gc_mark_hook elf_metag_gc_mark_hook
4139 #define elf_backend_check_relocs elf_metag_check_relocs
4140 #define elf_backend_create_dynamic_sections elf_metag_create_dynamic_sections
4141 #define elf_backend_adjust_dynamic_symbol elf_metag_adjust_dynamic_symbol
4142 #define elf_backend_finish_dynamic_symbol elf_metag_finish_dynamic_symbol
4143 #define elf_backend_finish_dynamic_sections elf_metag_finish_dynamic_sections
4144 #define elf_backend_size_dynamic_sections elf_metag_size_dynamic_sections
4145 #define elf_backend_omit_section_dynsym \
4146 _bfd_elf_omit_section_dynsym_all
4147 #define elf_backend_post_process_headers elf_metag_post_process_headers
4148 #define elf_backend_reloc_type_class elf_metag_reloc_type_class
4149 #define elf_backend_copy_indirect_symbol elf_metag_copy_indirect_symbol
4150 #define elf_backend_plt_sym_val elf_metag_plt_sym_val
4152 #define elf_backend_can_gc_sections 1
4153 #define elf_backend_can_refcount 1
4154 #define elf_backend_rela_normal 1
4155 #define elf_backend_want_got_plt 1
4156 #define elf_backend_want_got_sym 0
4157 #define elf_backend_want_plt_sym 0
4158 #define elf_backend_plt_readonly 1
4159 #define elf_backend_dtrel_excludes_plt 1
4160 #define elf_backend_want_dynrelro 1
4162 #define bfd_elf32_bfd_reloc_type_lookup metag_reloc_type_lookup
4163 #define bfd_elf32_bfd_reloc_name_lookup metag_reloc_name_lookup
4165 #include "elf32-target.h"