1 /* BFD back-end for ALPHA Extended-Coff files.
2 Copyright (C) 1993-2019 Free Software Foundation, Inc.
3 Modified from coff-mips.c by Steve Chamberlain <sac@cygnus.com> and
4 Ian Lance Taylor <ian@cygnus.com>.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
27 #include "coff/internal.h"
29 #include "coff/symconst.h"
30 #include "coff/ecoff.h"
31 #include "coff/alpha.h"
36 /* Prototypes for static functions. */
40 /* ECOFF has COFF sections, but the debugging information is stored in
41 a completely different format. ECOFF targets use some of the
42 swapping routines from coffswap.h, and some of the generic COFF
43 routines in coffgen.c, but, unlike the real COFF targets, do not
44 use coffcode.h itself.
46 Get the generic COFF swapping routines, except for the reloc,
47 symbol, and lineno ones. Give them ecoff names. Define some
48 accessor macros for the large sizes used for Alpha ECOFF. */
50 #define GET_FILEHDR_SYMPTR H_GET_64
51 #define PUT_FILEHDR_SYMPTR H_PUT_64
52 #define GET_AOUTHDR_TSIZE H_GET_64
53 #define PUT_AOUTHDR_TSIZE H_PUT_64
54 #define GET_AOUTHDR_DSIZE H_GET_64
55 #define PUT_AOUTHDR_DSIZE H_PUT_64
56 #define GET_AOUTHDR_BSIZE H_GET_64
57 #define PUT_AOUTHDR_BSIZE H_PUT_64
58 #define GET_AOUTHDR_ENTRY H_GET_64
59 #define PUT_AOUTHDR_ENTRY H_PUT_64
60 #define GET_AOUTHDR_TEXT_START H_GET_64
61 #define PUT_AOUTHDR_TEXT_START H_PUT_64
62 #define GET_AOUTHDR_DATA_START H_GET_64
63 #define PUT_AOUTHDR_DATA_START H_PUT_64
64 #define GET_SCNHDR_PADDR H_GET_64
65 #define PUT_SCNHDR_PADDR H_PUT_64
66 #define GET_SCNHDR_VADDR H_GET_64
67 #define PUT_SCNHDR_VADDR H_PUT_64
68 #define GET_SCNHDR_SIZE H_GET_64
69 #define PUT_SCNHDR_SIZE H_PUT_64
70 #define GET_SCNHDR_SCNPTR H_GET_64
71 #define PUT_SCNHDR_SCNPTR H_PUT_64
72 #define GET_SCNHDR_RELPTR H_GET_64
73 #define PUT_SCNHDR_RELPTR H_PUT_64
74 #define GET_SCNHDR_LNNOPTR H_GET_64
75 #define PUT_SCNHDR_LNNOPTR H_PUT_64
79 #define NO_COFF_RELOCS
80 #define NO_COFF_SYMBOLS
81 #define NO_COFF_LINENOS
82 #define coff_swap_filehdr_in alpha_ecoff_swap_filehdr_in
83 #define coff_swap_filehdr_out alpha_ecoff_swap_filehdr_out
84 #define coff_swap_aouthdr_in alpha_ecoff_swap_aouthdr_in
85 #define coff_swap_aouthdr_out alpha_ecoff_swap_aouthdr_out
86 #define coff_swap_scnhdr_in alpha_ecoff_swap_scnhdr_in
87 #define coff_swap_scnhdr_out alpha_ecoff_swap_scnhdr_out
90 /* Get the ECOFF swapping routines. */
92 #include "ecoffswap.h"
94 /* How to process the various reloc types. */
96 static bfd_reloc_status_type
97 reloc_nil (bfd *abfd ATTRIBUTE_UNUSED,
98 arelent *reloc ATTRIBUTE_UNUSED,
99 asymbol *sym ATTRIBUTE_UNUSED,
100 void * data ATTRIBUTE_UNUSED,
101 asection *sec ATTRIBUTE_UNUSED,
102 bfd *output_bfd ATTRIBUTE_UNUSED,
103 char **error_message ATTRIBUTE_UNUSED)
108 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
109 from smaller values. Start with zero, widen, *then* decrement. */
110 #define MINUS_ONE (((bfd_vma)0) - 1)
112 static reloc_howto_type alpha_howto_table[] =
114 /* Reloc type 0 is ignored by itself. However, it appears after a
115 GPDISP reloc to identify the location where the low order 16 bits
116 of the gp register are loaded. */
117 HOWTO (ALPHA_R_IGNORE, /* type */
119 0, /* size (0 = byte, 1 = short, 2 = long) */
121 TRUE, /* pc_relative */
123 complain_overflow_dont, /* complain_on_overflow */
124 reloc_nil, /* special_function */
126 TRUE, /* partial_inplace */
129 TRUE), /* pcrel_offset */
131 /* A 32 bit reference to a symbol. */
132 HOWTO (ALPHA_R_REFLONG, /* type */
134 2, /* size (0 = byte, 1 = short, 2 = long) */
136 FALSE, /* pc_relative */
138 complain_overflow_bitfield, /* complain_on_overflow */
139 0, /* special_function */
140 "REFLONG", /* name */
141 TRUE, /* partial_inplace */
142 0xffffffff, /* src_mask */
143 0xffffffff, /* dst_mask */
144 FALSE), /* pcrel_offset */
146 /* A 64 bit reference to a symbol. */
147 HOWTO (ALPHA_R_REFQUAD, /* type */
149 4, /* size (0 = byte, 1 = short, 2 = long) */
151 FALSE, /* pc_relative */
153 complain_overflow_bitfield, /* complain_on_overflow */
154 0, /* special_function */
155 "REFQUAD", /* name */
156 TRUE, /* partial_inplace */
157 MINUS_ONE, /* src_mask */
158 MINUS_ONE, /* dst_mask */
159 FALSE), /* pcrel_offset */
161 /* A 32 bit GP relative offset. This is just like REFLONG except
162 that when the value is used the value of the gp register will be
164 HOWTO (ALPHA_R_GPREL32, /* type */
166 2, /* size (0 = byte, 1 = short, 2 = long) */
168 FALSE, /* pc_relative */
170 complain_overflow_bitfield, /* complain_on_overflow */
171 0, /* special_function */
172 "GPREL32", /* name */
173 TRUE, /* partial_inplace */
174 0xffffffff, /* src_mask */
175 0xffffffff, /* dst_mask */
176 FALSE), /* pcrel_offset */
178 /* Used for an instruction that refers to memory off the GP
179 register. The offset is 16 bits of the 32 bit instruction. This
180 reloc always seems to be against the .lita section. */
181 HOWTO (ALPHA_R_LITERAL, /* type */
183 2, /* size (0 = byte, 1 = short, 2 = long) */
185 FALSE, /* pc_relative */
187 complain_overflow_signed, /* complain_on_overflow */
188 0, /* special_function */
189 "LITERAL", /* name */
190 TRUE, /* partial_inplace */
191 0xffff, /* src_mask */
192 0xffff, /* dst_mask */
193 FALSE), /* pcrel_offset */
195 /* This reloc only appears immediately following a LITERAL reloc.
196 It identifies a use of the literal. It seems that the linker can
197 use this to eliminate a portion of the .lita section. The symbol
198 index is special: 1 means the literal address is in the base
199 register of a memory format instruction; 2 means the literal
200 address is in the byte offset register of a byte-manipulation
201 instruction; 3 means the literal address is in the target
202 register of a jsr instruction. This does not actually do any
204 HOWTO (ALPHA_R_LITUSE, /* type */
206 2, /* size (0 = byte, 1 = short, 2 = long) */
208 FALSE, /* pc_relative */
210 complain_overflow_dont, /* complain_on_overflow */
211 reloc_nil, /* special_function */
213 FALSE, /* partial_inplace */
216 FALSE), /* pcrel_offset */
218 /* Load the gp register. This is always used for a ldah instruction
219 which loads the upper 16 bits of the gp register. The next reloc
220 will be an IGNORE reloc which identifies the location of the lda
221 instruction which loads the lower 16 bits. The symbol index of
222 the GPDISP instruction appears to actually be the number of bytes
223 between the ldah and lda instructions. This gives two different
224 ways to determine where the lda instruction is; I don't know why
225 both are used. The value to use for the relocation is the
226 difference between the GP value and the current location; the
227 load will always be done against a register holding the current
229 HOWTO (ALPHA_R_GPDISP, /* type */
231 2, /* size (0 = byte, 1 = short, 2 = long) */
233 TRUE, /* pc_relative */
235 complain_overflow_dont, /* complain_on_overflow */
236 reloc_nil, /* special_function */
238 TRUE, /* partial_inplace */
239 0xffff, /* src_mask */
240 0xffff, /* dst_mask */
241 TRUE), /* pcrel_offset */
243 /* A 21 bit branch. The native assembler generates these for
244 branches within the text segment, and also fills in the PC
245 relative offset in the instruction. */
246 HOWTO (ALPHA_R_BRADDR, /* type */
248 2, /* size (0 = byte, 1 = short, 2 = long) */
250 TRUE, /* pc_relative */
252 complain_overflow_signed, /* complain_on_overflow */
253 0, /* special_function */
255 TRUE, /* partial_inplace */
256 0x1fffff, /* src_mask */
257 0x1fffff, /* dst_mask */
258 FALSE), /* pcrel_offset */
260 /* A hint for a jump to a register. */
261 HOWTO (ALPHA_R_HINT, /* type */
263 2, /* size (0 = byte, 1 = short, 2 = long) */
265 TRUE, /* pc_relative */
267 complain_overflow_dont, /* complain_on_overflow */
268 0, /* special_function */
270 TRUE, /* partial_inplace */
271 0x3fff, /* src_mask */
272 0x3fff, /* dst_mask */
273 FALSE), /* pcrel_offset */
275 /* 16 bit PC relative offset. */
276 HOWTO (ALPHA_R_SREL16, /* type */
278 1, /* size (0 = byte, 1 = short, 2 = long) */
280 TRUE, /* pc_relative */
282 complain_overflow_signed, /* complain_on_overflow */
283 0, /* special_function */
285 TRUE, /* partial_inplace */
286 0xffff, /* src_mask */
287 0xffff, /* dst_mask */
288 FALSE), /* pcrel_offset */
290 /* 32 bit PC relative offset. */
291 HOWTO (ALPHA_R_SREL32, /* type */
293 2, /* size (0 = byte, 1 = short, 2 = long) */
295 TRUE, /* pc_relative */
297 complain_overflow_signed, /* complain_on_overflow */
298 0, /* special_function */
300 TRUE, /* partial_inplace */
301 0xffffffff, /* src_mask */
302 0xffffffff, /* dst_mask */
303 FALSE), /* pcrel_offset */
305 /* A 64 bit PC relative offset. */
306 HOWTO (ALPHA_R_SREL64, /* type */
308 4, /* size (0 = byte, 1 = short, 2 = long) */
310 TRUE, /* pc_relative */
312 complain_overflow_signed, /* complain_on_overflow */
313 0, /* special_function */
315 TRUE, /* partial_inplace */
316 MINUS_ONE, /* src_mask */
317 MINUS_ONE, /* dst_mask */
318 FALSE), /* pcrel_offset */
320 /* Push a value on the reloc evaluation stack. */
321 HOWTO (ALPHA_R_OP_PUSH, /* type */
323 0, /* size (0 = byte, 1 = short, 2 = long) */
325 FALSE, /* pc_relative */
327 complain_overflow_dont, /* complain_on_overflow */
328 0, /* special_function */
329 "OP_PUSH", /* name */
330 FALSE, /* partial_inplace */
333 FALSE), /* pcrel_offset */
335 /* Store the value from the stack at the given address. Store it in
336 a bitfield of size r_size starting at bit position r_offset. */
337 HOWTO (ALPHA_R_OP_STORE, /* type */
339 4, /* size (0 = byte, 1 = short, 2 = long) */
341 FALSE, /* pc_relative */
343 complain_overflow_dont, /* complain_on_overflow */
344 0, /* special_function */
345 "OP_STORE", /* name */
346 FALSE, /* partial_inplace */
348 MINUS_ONE, /* dst_mask */
349 FALSE), /* pcrel_offset */
351 /* Subtract the reloc address from the value on the top of the
353 HOWTO (ALPHA_R_OP_PSUB, /* type */
355 0, /* size (0 = byte, 1 = short, 2 = long) */
357 FALSE, /* pc_relative */
359 complain_overflow_dont, /* complain_on_overflow */
360 0, /* special_function */
361 "OP_PSUB", /* name */
362 FALSE, /* partial_inplace */
365 FALSE), /* pcrel_offset */
367 /* Shift the value on the top of the relocation stack right by the
369 HOWTO (ALPHA_R_OP_PRSHIFT, /* type */
371 0, /* size (0 = byte, 1 = short, 2 = long) */
373 FALSE, /* pc_relative */
375 complain_overflow_dont, /* complain_on_overflow */
376 0, /* special_function */
377 "OP_PRSHIFT", /* name */
378 FALSE, /* partial_inplace */
381 FALSE), /* pcrel_offset */
383 /* Adjust the GP value for a new range in the object file. */
384 HOWTO (ALPHA_R_GPVALUE, /* type */
386 0, /* size (0 = byte, 1 = short, 2 = long) */
388 FALSE, /* pc_relative */
390 complain_overflow_dont, /* complain_on_overflow */
391 0, /* special_function */
392 "GPVALUE", /* name */
393 FALSE, /* partial_inplace */
396 FALSE) /* pcrel_offset */
399 /* Recognize an Alpha ECOFF file. */
401 static const bfd_target *
402 alpha_ecoff_object_p (bfd *abfd)
404 static const bfd_target *ret;
406 ret = coff_object_p (abfd);
412 /* Alpha ECOFF has a .pdata section. The lnnoptr field of the
413 .pdata section is the number of entries it contains. Each
414 entry takes up 8 bytes. The number of entries is required
415 since the section is aligned to a 16 byte boundary. When we
416 link .pdata sections together, we do not want to include the
417 alignment bytes. We handle this on input by faking the size
418 of the .pdata section to remove the unwanted alignment bytes.
419 On output we will set the lnnoptr field and force the
421 sec = bfd_get_section_by_name (abfd, _PDATA);
422 if (sec != (asection *) NULL)
426 size = sec->line_filepos * 8;
427 BFD_ASSERT (size == sec->size
428 || size + 8 == sec->size);
429 if (! bfd_set_section_size (abfd, sec, size))
437 /* See whether the magic number matches. */
440 alpha_ecoff_bad_format_hook (bfd *abfd ATTRIBUTE_UNUSED,
443 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
445 if (! ALPHA_ECOFF_BADMAG (*internal_f))
448 if (ALPHA_ECOFF_COMPRESSEDMAG (*internal_f))
450 (_("%pB: cannot handle compressed Alpha binaries; "
451 "use compiler flags, or objZ, to generate uncompressed binaries"),
457 /* This is a hook called by coff_real_object_p to create any backend
458 specific information. */
461 alpha_ecoff_mkobject_hook (bfd *abfd, void * filehdr, void * aouthdr)
465 ecoff = _bfd_ecoff_mkobject_hook (abfd, filehdr, aouthdr);
469 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
471 /* Set additional BFD flags according to the object type from the
472 machine specific file header flags. */
473 switch (internal_f->f_flags & F_ALPHA_OBJECT_TYPE_MASK)
475 case F_ALPHA_SHARABLE:
476 abfd->flags |= DYNAMIC;
478 case F_ALPHA_CALL_SHARED:
479 /* Always executable if using shared libraries as the run time
480 loader might resolve undefined references. */
481 abfd->flags |= (DYNAMIC | EXEC_P);
488 /* Reloc handling. */
490 /* Swap a reloc in. */
493 alpha_ecoff_swap_reloc_in (bfd *abfd,
495 struct internal_reloc *intern)
497 const RELOC *ext = (RELOC *) ext_ptr;
499 intern->r_vaddr = H_GET_64 (abfd, ext->r_vaddr);
500 intern->r_symndx = H_GET_32 (abfd, ext->r_symndx);
502 BFD_ASSERT (bfd_header_little_endian (abfd));
504 intern->r_type = ((ext->r_bits[0] & RELOC_BITS0_TYPE_LITTLE)
505 >> RELOC_BITS0_TYPE_SH_LITTLE);
506 intern->r_extern = (ext->r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0;
507 intern->r_offset = ((ext->r_bits[1] & RELOC_BITS1_OFFSET_LITTLE)
508 >> RELOC_BITS1_OFFSET_SH_LITTLE);
509 /* Ignored the reserved bits. */
510 intern->r_size = ((ext->r_bits[3] & RELOC_BITS3_SIZE_LITTLE)
511 >> RELOC_BITS3_SIZE_SH_LITTLE);
513 if (intern->r_type == ALPHA_R_LITUSE
514 || intern->r_type == ALPHA_R_GPDISP)
516 /* Handle the LITUSE and GPDISP relocs specially. Its symndx
517 value is not actually a symbol index, but is instead a
518 special code. We put the code in the r_size field, and
519 clobber the symndx. */
520 if (intern->r_size != 0)
522 intern->r_size = intern->r_symndx;
523 intern->r_symndx = RELOC_SECTION_NONE;
525 else if (intern->r_type == ALPHA_R_IGNORE)
527 /* The IGNORE reloc generally follows a GPDISP reloc, and is
528 against the .lita section. The section is irrelevant. */
529 if (! intern->r_extern &&
530 intern->r_symndx == RELOC_SECTION_ABS)
532 if (! intern->r_extern && intern->r_symndx == RELOC_SECTION_LITA)
533 intern->r_symndx = RELOC_SECTION_ABS;
537 /* Swap a reloc out. */
540 alpha_ecoff_swap_reloc_out (bfd *abfd,
541 const struct internal_reloc *intern,
544 RELOC *ext = (RELOC *) dst;
548 /* Undo the hackery done in swap_reloc_in. */
549 if (intern->r_type == ALPHA_R_LITUSE
550 || intern->r_type == ALPHA_R_GPDISP)
552 symndx = intern->r_size;
555 else if (intern->r_type == ALPHA_R_IGNORE
556 && ! intern->r_extern
557 && intern->r_symndx == RELOC_SECTION_ABS)
559 symndx = RELOC_SECTION_LITA;
560 size = intern->r_size;
564 symndx = intern->r_symndx;
565 size = intern->r_size;
568 /* XXX FIXME: The maximum symndx value used to be 14 but this
569 fails with object files produced by DEC's C++ compiler.
570 Where does the value 14 (or 15) come from anyway ? */
571 BFD_ASSERT (intern->r_extern
572 || (intern->r_symndx >= 0 && intern->r_symndx <= 15));
574 H_PUT_64 (abfd, intern->r_vaddr, ext->r_vaddr);
575 H_PUT_32 (abfd, symndx, ext->r_symndx);
577 BFD_ASSERT (bfd_header_little_endian (abfd));
579 ext->r_bits[0] = ((intern->r_type << RELOC_BITS0_TYPE_SH_LITTLE)
580 & RELOC_BITS0_TYPE_LITTLE);
581 ext->r_bits[1] = ((intern->r_extern ? RELOC_BITS1_EXTERN_LITTLE : 0)
582 | ((intern->r_offset << RELOC_BITS1_OFFSET_SH_LITTLE)
583 & RELOC_BITS1_OFFSET_LITTLE));
585 ext->r_bits[3] = ((size << RELOC_BITS3_SIZE_SH_LITTLE)
586 & RELOC_BITS3_SIZE_LITTLE);
589 /* Finish canonicalizing a reloc. Part of this is generic to all
590 ECOFF targets, and that part is in ecoff.c. The rest is done in
591 this backend routine. It must fill in the howto field. */
594 alpha_adjust_reloc_in (bfd *abfd,
595 const struct internal_reloc *intern,
598 if (intern->r_type > ALPHA_R_GPVALUE)
600 /* xgettext:c-format */
601 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
602 abfd, intern->r_type);
603 bfd_set_error (bfd_error_bad_value);
609 switch (intern->r_type)
615 /* This relocs appear to be fully resolved when they are against
616 internal symbols. Against external symbols, BRADDR at least
617 appears to be resolved against the next instruction. */
618 if (! intern->r_extern)
621 rptr->addend = - (intern->r_vaddr + 4);
624 case ALPHA_R_GPREL32:
625 case ALPHA_R_LITERAL:
626 /* Copy the gp value for this object file into the addend, to
627 ensure that we are not confused by the linker. */
628 if (! intern->r_extern)
629 rptr->addend += ecoff_data (abfd)->gp;
634 /* The LITUSE and GPDISP relocs do not use a symbol, or an
635 addend, but they do use a special code. Put this code in the
637 rptr->addend = intern->r_size;
640 case ALPHA_R_OP_STORE:
641 /* The STORE reloc needs the size and offset fields. We store
642 them in the addend. */
643 BFD_ASSERT (intern->r_offset <= 256);
644 rptr->addend = (intern->r_offset << 8) + intern->r_size;
647 case ALPHA_R_OP_PUSH:
648 case ALPHA_R_OP_PSUB:
649 case ALPHA_R_OP_PRSHIFT:
650 /* The PUSH, PSUB and PRSHIFT relocs do not actually use an
651 address. I believe that the address supplied is really an
653 rptr->addend = intern->r_vaddr;
656 case ALPHA_R_GPVALUE:
657 /* Set the addend field to the new GP value. */
658 rptr->addend = intern->r_symndx + ecoff_data (abfd)->gp;
662 /* If the type is ALPHA_R_IGNORE, make sure this is a reference
663 to the absolute section so that the reloc is ignored. For
664 some reason the address of this reloc type is not adjusted by
665 the section vma. We record the gp value for this object file
666 here, for convenience when doing the GPDISP relocation. */
667 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
668 rptr->address = intern->r_vaddr;
669 rptr->addend = ecoff_data (abfd)->gp;
676 rptr->howto = &alpha_howto_table[intern->r_type];
679 /* When writing out a reloc we need to pull some values back out of
680 the addend field into the reloc. This is roughly the reverse of
681 alpha_adjust_reloc_in, except that there are several changes we do
685 alpha_adjust_reloc_out (bfd *abfd ATTRIBUTE_UNUSED,
687 struct internal_reloc *intern)
689 switch (intern->r_type)
693 intern->r_size = rel->addend;
696 case ALPHA_R_OP_STORE:
697 intern->r_size = rel->addend & 0xff;
698 intern->r_offset = (rel->addend >> 8) & 0xff;
701 case ALPHA_R_OP_PUSH:
702 case ALPHA_R_OP_PSUB:
703 case ALPHA_R_OP_PRSHIFT:
704 intern->r_vaddr = rel->addend;
708 intern->r_vaddr = rel->address;
716 /* The size of the stack for the relocation evaluator. */
717 #define RELOC_STACKSIZE (10)
719 /* Alpha ECOFF relocs have a built in expression evaluator as well as
720 other interdependencies. Rather than use a bunch of special
721 functions and global variables, we use a single routine to do all
722 the relocation for a section. I haven't yet worked out how the
723 assembler is going to handle this. */
726 alpha_ecoff_get_relocated_section_contents (bfd *abfd,
727 struct bfd_link_info *link_info,
728 struct bfd_link_order *link_order,
730 bfd_boolean relocatable,
733 bfd *input_bfd = link_order->u.indirect.section->owner;
734 asection *input_section = link_order->u.indirect.section;
735 long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
736 arelent **reloc_vector = NULL;
738 bfd *output_bfd = relocatable ? abfd : (bfd *) NULL;
741 bfd_boolean gp_undefined;
742 bfd_vma stack[RELOC_STACKSIZE];
747 reloc_vector = (arelent **) bfd_malloc ((bfd_size_type) reloc_size);
748 if (reloc_vector == NULL && reloc_size != 0)
751 sz = input_section->rawsize ? input_section->rawsize : input_section->size;
752 if (! bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
755 reloc_count = bfd_canonicalize_reloc (input_bfd, input_section,
756 reloc_vector, symbols);
759 if (reloc_count == 0)
760 goto successful_return;
762 /* Get the GP value for the output BFD. */
763 gp_undefined = FALSE;
764 gp = _bfd_get_gp_value (abfd);
772 /* Make up a value. */
774 for (sec = abfd->sections; sec != NULL; sec = sec->next)
777 && (strcmp (sec->name, ".sbss") == 0
778 || strcmp (sec->name, ".sdata") == 0
779 || strcmp (sec->name, ".lit4") == 0
780 || strcmp (sec->name, ".lit8") == 0
781 || strcmp (sec->name, ".lita") == 0))
785 _bfd_set_gp_value (abfd, gp);
789 struct bfd_link_hash_entry *h;
791 h = bfd_link_hash_lookup (link_info->hash, "_gp", FALSE, FALSE,
793 if (h == (struct bfd_link_hash_entry *) NULL
794 || h->type != bfd_link_hash_defined)
799 + h->u.def.section->output_section->vma
800 + h->u.def.section->output_offset);
801 _bfd_set_gp_value (abfd, gp);
806 for (; *reloc_vector != (arelent *) NULL; reloc_vector++)
809 bfd_reloc_status_type r;
814 switch (rel->howto->type)
817 rel->address += input_section->output_offset;
820 case ALPHA_R_REFLONG:
821 case ALPHA_R_REFQUAD:
828 && ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0)
830 rel->address += input_section->output_offset;
833 r = bfd_perform_relocation (input_bfd, rel, data, input_section,
837 case ALPHA_R_GPREL32:
838 /* This relocation is used in a switch table. It is a 32
839 bit offset from the current GP value. We must adjust it
840 by the different between the original GP value and the
841 current GP value. The original GP value is stored in the
842 addend. We adjust the addend and let
843 bfd_perform_relocation finish the job. */
845 r = bfd_perform_relocation (input_bfd, rel, data, input_section,
847 if (r == bfd_reloc_ok && gp_undefined)
849 r = bfd_reloc_dangerous;
850 err = (char *) _("GP relative relocation used when GP not defined");
854 case ALPHA_R_LITERAL:
855 /* This is a reference to a literal value, generally
856 (always?) in the .lita section. This is a 16 bit GP
857 relative relocation. Sometimes the subsequent reloc is a
858 LITUSE reloc, which indicates how this reloc is used.
859 This sometimes permits rewriting the two instructions
860 referred to by the LITERAL and the LITUSE into different
861 instructions which do not refer to .lita. This can save
862 a memory reference, and permits removing a value from
863 .lita thus saving GP relative space.
865 We do not these optimizations. To do them we would need
866 to arrange to link the .lita section first, so that by
867 the time we got here we would know the final values to
868 use. This would not be particularly difficult, but it is
869 not currently implemented. */
874 /* I believe that the LITERAL reloc will only apply to a
875 ldq or ldl instruction, so check my assumption. */
876 insn = bfd_get_32 (input_bfd, data + rel->address);
877 BFD_ASSERT (((insn >> 26) & 0x3f) == 0x29
878 || ((insn >> 26) & 0x3f) == 0x28);
881 r = bfd_perform_relocation (input_bfd, rel, data, input_section,
883 if (r == bfd_reloc_ok && gp_undefined)
885 r = bfd_reloc_dangerous;
887 (char *) _("GP relative relocation used when GP not defined");
893 /* See ALPHA_R_LITERAL above for the uses of this reloc. It
894 does not cause anything to happen, itself. */
895 rel->address += input_section->output_offset;
899 /* This marks the ldah of an ldah/lda pair which loads the
900 gp register with the difference of the gp value and the
901 current location. The second of the pair is r_size bytes
902 ahead; it used to be marked with an ALPHA_R_IGNORE reloc,
903 but that no longer happens in OSF/1 3.2. */
905 unsigned long insn1, insn2;
908 /* Get the two instructions. */
909 insn1 = bfd_get_32 (input_bfd, data + rel->address);
910 insn2 = bfd_get_32 (input_bfd, data + rel->address + rel->addend);
912 BFD_ASSERT (((insn1 >> 26) & 0x3f) == 0x09); /* ldah */
913 BFD_ASSERT (((insn2 >> 26) & 0x3f) == 0x08); /* lda */
915 /* Get the existing addend. We must account for the sign
916 extension done by lda and ldah. */
917 addend = ((insn1 & 0xffff) << 16) + (insn2 & 0xffff);
920 addend -= 0x80000000;
921 addend -= 0x80000000;
926 /* The existing addend includes the different between the
927 gp of the input BFD and the address in the input BFD.
928 Subtract this out. */
929 addend -= (ecoff_data (input_bfd)->gp
930 - (input_section->vma + rel->address));
932 /* Now add in the final gp value, and subtract out the
935 - (input_section->output_section->vma
936 + input_section->output_offset
939 /* Change the instructions, accounting for the sign
940 extension, and write them out. */
943 insn1 = (insn1 & 0xffff0000) | ((addend >> 16) & 0xffff);
944 insn2 = (insn2 & 0xffff0000) | (addend & 0xffff);
946 bfd_put_32 (input_bfd, (bfd_vma) insn1, data + rel->address);
947 bfd_put_32 (input_bfd, (bfd_vma) insn2,
948 data + rel->address + rel->addend);
950 rel->address += input_section->output_offset;
954 case ALPHA_R_OP_PUSH:
955 /* Push a value on the reloc evaluation stack. */
962 rel->address += input_section->output_offset;
966 /* Figure out the relocation of this symbol. */
967 symbol = *rel->sym_ptr_ptr;
969 if (bfd_is_und_section (symbol->section))
970 r = bfd_reloc_undefined;
972 if (bfd_is_com_section (symbol->section))
975 relocation = symbol->value;
976 relocation += symbol->section->output_section->vma;
977 relocation += symbol->section->output_offset;
978 relocation += rel->addend;
980 if (tos >= RELOC_STACKSIZE)
983 stack[tos++] = relocation;
987 case ALPHA_R_OP_STORE:
988 /* Store a value from the reloc stack into a bitfield. */
995 rel->address += input_section->output_offset;
1002 /* The offset and size for this reloc are encoded into the
1003 addend field by alpha_adjust_reloc_in. */
1004 offset = (rel->addend >> 8) & 0xff;
1005 size = rel->addend & 0xff;
1007 val = bfd_get_64 (abfd, data + rel->address);
1008 val &=~ (((1 << size) - 1) << offset);
1009 val |= (stack[--tos] & ((1 << size) - 1)) << offset;
1010 bfd_put_64 (abfd, val, data + rel->address);
1014 case ALPHA_R_OP_PSUB:
1015 /* Subtract a value from the top of the stack. */
1022 rel->address += input_section->output_offset;
1026 /* Figure out the relocation of this symbol. */
1027 symbol = *rel->sym_ptr_ptr;
1029 if (bfd_is_und_section (symbol->section))
1030 r = bfd_reloc_undefined;
1032 if (bfd_is_com_section (symbol->section))
1035 relocation = symbol->value;
1036 relocation += symbol->section->output_section->vma;
1037 relocation += symbol->section->output_offset;
1038 relocation += rel->addend;
1043 stack[tos - 1] -= relocation;
1047 case ALPHA_R_OP_PRSHIFT:
1048 /* Shift the value on the top of the stack. */
1055 rel->address += input_section->output_offset;
1059 /* Figure out the relocation of this symbol. */
1060 symbol = *rel->sym_ptr_ptr;
1062 if (bfd_is_und_section (symbol->section))
1063 r = bfd_reloc_undefined;
1065 if (bfd_is_com_section (symbol->section))
1068 relocation = symbol->value;
1069 relocation += symbol->section->output_section->vma;
1070 relocation += symbol->section->output_offset;
1071 relocation += rel->addend;
1076 stack[tos - 1] >>= relocation;
1080 case ALPHA_R_GPVALUE:
1081 /* I really don't know if this does the right thing. */
1083 gp_undefined = FALSE;
1092 asection *os = input_section->output_section;
1094 /* A partial link, so keep the relocs. */
1095 os->orelocation[os->reloc_count] = rel;
1099 if (r != bfd_reloc_ok)
1103 case bfd_reloc_undefined:
1104 (*link_info->callbacks->undefined_symbol)
1105 (link_info, bfd_asymbol_name (*rel->sym_ptr_ptr),
1106 input_bfd, input_section, rel->address, TRUE);
1108 case bfd_reloc_dangerous:
1109 (*link_info->callbacks->reloc_dangerous)
1110 (link_info, err, input_bfd, input_section, rel->address);
1112 case bfd_reloc_overflow:
1113 (*link_info->callbacks->reloc_overflow)
1114 (link_info, NULL, bfd_asymbol_name (*rel->sym_ptr_ptr),
1115 rel->howto->name, rel->addend, input_bfd,
1116 input_section, rel->address);
1118 case bfd_reloc_outofrange:
1130 if (reloc_vector != NULL)
1131 free (reloc_vector);
1135 if (reloc_vector != NULL)
1136 free (reloc_vector);
1140 /* Get the howto structure for a generic reloc type. */
1142 static reloc_howto_type *
1143 alpha_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1144 bfd_reloc_code_real_type code)
1151 alpha_type = ALPHA_R_REFLONG;
1154 case BFD_RELOC_CTOR:
1155 alpha_type = ALPHA_R_REFQUAD;
1157 case BFD_RELOC_GPREL32:
1158 alpha_type = ALPHA_R_GPREL32;
1160 case BFD_RELOC_ALPHA_LITERAL:
1161 alpha_type = ALPHA_R_LITERAL;
1163 case BFD_RELOC_ALPHA_LITUSE:
1164 alpha_type = ALPHA_R_LITUSE;
1166 case BFD_RELOC_ALPHA_GPDISP_HI16:
1167 alpha_type = ALPHA_R_GPDISP;
1169 case BFD_RELOC_ALPHA_GPDISP_LO16:
1170 alpha_type = ALPHA_R_IGNORE;
1172 case BFD_RELOC_23_PCREL_S2:
1173 alpha_type = ALPHA_R_BRADDR;
1175 case BFD_RELOC_ALPHA_HINT:
1176 alpha_type = ALPHA_R_HINT;
1178 case BFD_RELOC_16_PCREL:
1179 alpha_type = ALPHA_R_SREL16;
1181 case BFD_RELOC_32_PCREL:
1182 alpha_type = ALPHA_R_SREL32;
1184 case BFD_RELOC_64_PCREL:
1185 alpha_type = ALPHA_R_SREL64;
1188 return (reloc_howto_type *) NULL;
1191 return &alpha_howto_table[alpha_type];
1194 static reloc_howto_type *
1195 alpha_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1201 i < sizeof (alpha_howto_table) / sizeof (alpha_howto_table[0]);
1203 if (alpha_howto_table[i].name != NULL
1204 && strcasecmp (alpha_howto_table[i].name, r_name) == 0)
1205 return &alpha_howto_table[i];
1210 /* A helper routine for alpha_relocate_section which converts an
1211 external reloc when generating relocatable output. Returns the
1212 relocation amount. */
1215 alpha_convert_external_reloc (bfd *output_bfd ATTRIBUTE_UNUSED,
1216 struct bfd_link_info *info,
1218 struct external_reloc *ext_rel,
1219 struct ecoff_link_hash_entry *h)
1221 unsigned long r_symndx;
1224 BFD_ASSERT (bfd_link_relocatable (info));
1226 if (h->root.type == bfd_link_hash_defined
1227 || h->root.type == bfd_link_hash_defweak)
1232 /* This symbol is defined in the output. Convert the reloc from
1233 being against the symbol to being against the section. */
1235 /* Clear the r_extern bit. */
1236 ext_rel->r_bits[1] &=~ RELOC_BITS1_EXTERN_LITTLE;
1238 /* Compute a new r_symndx value. */
1239 hsec = h->root.u.def.section;
1240 name = bfd_get_section_name (output_bfd, hsec->output_section);
1242 r_symndx = (unsigned long) -1;
1246 if (strcmp (name, "*ABS*") == 0)
1247 r_symndx = RELOC_SECTION_ABS;
1250 if (strcmp (name, ".bss") == 0)
1251 r_symndx = RELOC_SECTION_BSS;
1254 if (strcmp (name, ".data") == 0)
1255 r_symndx = RELOC_SECTION_DATA;
1258 if (strcmp (name, ".fini") == 0)
1259 r_symndx = RELOC_SECTION_FINI;
1262 if (strcmp (name, ".init") == 0)
1263 r_symndx = RELOC_SECTION_INIT;
1266 if (strcmp (name, ".lita") == 0)
1267 r_symndx = RELOC_SECTION_LITA;
1268 else if (strcmp (name, ".lit8") == 0)
1269 r_symndx = RELOC_SECTION_LIT8;
1270 else if (strcmp (name, ".lit4") == 0)
1271 r_symndx = RELOC_SECTION_LIT4;
1274 if (strcmp (name, ".pdata") == 0)
1275 r_symndx = RELOC_SECTION_PDATA;
1278 if (strcmp (name, ".rdata") == 0)
1279 r_symndx = RELOC_SECTION_RDATA;
1280 else if (strcmp (name, ".rconst") == 0)
1281 r_symndx = RELOC_SECTION_RCONST;
1284 if (strcmp (name, ".sdata") == 0)
1285 r_symndx = RELOC_SECTION_SDATA;
1286 else if (strcmp (name, ".sbss") == 0)
1287 r_symndx = RELOC_SECTION_SBSS;
1290 if (strcmp (name, ".text") == 0)
1291 r_symndx = RELOC_SECTION_TEXT;
1294 if (strcmp (name, ".xdata") == 0)
1295 r_symndx = RELOC_SECTION_XDATA;
1299 if (r_symndx == (unsigned long) -1)
1302 /* Add the section VMA and the symbol value. */
1303 relocation = (h->root.u.def.value
1304 + hsec->output_section->vma
1305 + hsec->output_offset);
1309 /* Change the symndx value to the right one for
1312 if (r_symndx == (unsigned long) -1)
1314 /* Caller must give an error. */
1320 /* Write out the new r_symndx value. */
1321 H_PUT_32 (input_bfd, r_symndx, ext_rel->r_symndx);
1326 /* Relocate a section while linking an Alpha ECOFF file. This is
1327 quite similar to get_relocated_section_contents. Perhaps they
1328 could be combined somehow. */
1331 alpha_relocate_section (bfd *output_bfd,
1332 struct bfd_link_info *info,
1334 asection *input_section,
1336 void * external_relocs)
1338 asection **symndx_to_section, *lita_sec;
1339 struct ecoff_link_hash_entry **sym_hashes;
1341 bfd_boolean gp_undefined;
1342 bfd_vma stack[RELOC_STACKSIZE];
1344 struct external_reloc *ext_rel;
1345 struct external_reloc *ext_rel_end;
1348 /* We keep a table mapping the symndx found in an internal reloc to
1349 the appropriate section. This is faster than looking up the
1350 section by name each time. */
1351 symndx_to_section = ecoff_data (input_bfd)->symndx_to_section;
1352 if (symndx_to_section == (asection **) NULL)
1354 amt = NUM_RELOC_SECTIONS * sizeof (asection *);
1355 symndx_to_section = (asection **) bfd_alloc (input_bfd, amt);
1356 if (!symndx_to_section)
1359 symndx_to_section[RELOC_SECTION_NONE] = NULL;
1360 symndx_to_section[RELOC_SECTION_TEXT] =
1361 bfd_get_section_by_name (input_bfd, ".text");
1362 symndx_to_section[RELOC_SECTION_RDATA] =
1363 bfd_get_section_by_name (input_bfd, ".rdata");
1364 symndx_to_section[RELOC_SECTION_DATA] =
1365 bfd_get_section_by_name (input_bfd, ".data");
1366 symndx_to_section[RELOC_SECTION_SDATA] =
1367 bfd_get_section_by_name (input_bfd, ".sdata");
1368 symndx_to_section[RELOC_SECTION_SBSS] =
1369 bfd_get_section_by_name (input_bfd, ".sbss");
1370 symndx_to_section[RELOC_SECTION_BSS] =
1371 bfd_get_section_by_name (input_bfd, ".bss");
1372 symndx_to_section[RELOC_SECTION_INIT] =
1373 bfd_get_section_by_name (input_bfd, ".init");
1374 symndx_to_section[RELOC_SECTION_LIT8] =
1375 bfd_get_section_by_name (input_bfd, ".lit8");
1376 symndx_to_section[RELOC_SECTION_LIT4] =
1377 bfd_get_section_by_name (input_bfd, ".lit4");
1378 symndx_to_section[RELOC_SECTION_XDATA] =
1379 bfd_get_section_by_name (input_bfd, ".xdata");
1380 symndx_to_section[RELOC_SECTION_PDATA] =
1381 bfd_get_section_by_name (input_bfd, ".pdata");
1382 symndx_to_section[RELOC_SECTION_FINI] =
1383 bfd_get_section_by_name (input_bfd, ".fini");
1384 symndx_to_section[RELOC_SECTION_LITA] =
1385 bfd_get_section_by_name (input_bfd, ".lita");
1386 symndx_to_section[RELOC_SECTION_ABS] = bfd_abs_section_ptr;
1387 symndx_to_section[RELOC_SECTION_RCONST] =
1388 bfd_get_section_by_name (input_bfd, ".rconst");
1390 ecoff_data (input_bfd)->symndx_to_section = symndx_to_section;
1393 sym_hashes = ecoff_data (input_bfd)->sym_hashes;
1395 /* On the Alpha, the .lita section must be addressable by the global
1396 pointer. To support large programs, we need to allow multiple
1397 global pointers. This works as long as each input .lita section
1398 is <64KB big. This implies that when producing relocatable
1399 output, the .lita section is limited to 64KB. . */
1401 lita_sec = symndx_to_section[RELOC_SECTION_LITA];
1402 gp = _bfd_get_gp_value (output_bfd);
1403 if (! bfd_link_relocatable (info) && lita_sec != NULL)
1405 struct ecoff_section_tdata *lita_sec_data;
1407 /* Make sure we have a section data structure to which we can
1408 hang on to the gp value we pick for the section. */
1409 lita_sec_data = ecoff_section_data (input_bfd, lita_sec);
1410 if (lita_sec_data == NULL)
1412 amt = sizeof (struct ecoff_section_tdata);
1413 lita_sec_data = ((struct ecoff_section_tdata *)
1414 bfd_zalloc (input_bfd, amt));
1415 lita_sec->used_by_bfd = lita_sec_data;
1418 if (lita_sec_data->gp != 0)
1420 /* If we already assigned a gp to this section, we better
1421 stick with that value. */
1422 gp = lita_sec_data->gp;
1427 bfd_size_type lita_size;
1429 lita_vma = lita_sec->output_offset + lita_sec->output_section->vma;
1430 lita_size = lita_sec->size;
1433 || lita_vma < gp - 0x8000
1434 || lita_vma + lita_size >= gp + 0x8000)
1436 /* Either gp hasn't been set at all or the current gp
1437 cannot address this .lita section. In both cases we
1438 reset the gp to point into the "middle" of the
1439 current input .lita section. */
1440 if (gp && !ecoff_data (output_bfd)->issued_multiple_gp_warning)
1442 (*info->callbacks->warning) (info,
1443 _("using multiple gp values"),
1444 (char *) NULL, output_bfd,
1445 (asection *) NULL, (bfd_vma) 0);
1446 ecoff_data (output_bfd)->issued_multiple_gp_warning = TRUE;
1448 if (lita_vma < gp - 0x8000)
1449 gp = lita_vma + lita_size - 0x8000;
1451 gp = lita_vma + 0x8000;
1455 lita_sec_data->gp = gp;
1458 _bfd_set_gp_value (output_bfd, gp);
1461 gp_undefined = (gp == 0);
1463 BFD_ASSERT (bfd_header_little_endian (output_bfd));
1464 BFD_ASSERT (bfd_header_little_endian (input_bfd));
1466 ext_rel = (struct external_reloc *) external_relocs;
1467 ext_rel_end = ext_rel + input_section->reloc_count;
1468 for (; ext_rel < ext_rel_end; ext_rel++)
1471 unsigned long r_symndx;
1476 bfd_boolean relocatep;
1477 bfd_boolean adjust_addrp;
1478 bfd_boolean gp_usedp;
1481 r_vaddr = H_GET_64 (input_bfd, ext_rel->r_vaddr);
1482 r_symndx = H_GET_32 (input_bfd, ext_rel->r_symndx);
1484 r_type = ((ext_rel->r_bits[0] & RELOC_BITS0_TYPE_LITTLE)
1485 >> RELOC_BITS0_TYPE_SH_LITTLE);
1486 r_extern = (ext_rel->r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0;
1487 r_offset = ((ext_rel->r_bits[1] & RELOC_BITS1_OFFSET_LITTLE)
1488 >> RELOC_BITS1_OFFSET_SH_LITTLE);
1489 /* Ignored the reserved bits. */
1490 r_size = ((ext_rel->r_bits[3] & RELOC_BITS3_SIZE_LITTLE)
1491 >> RELOC_BITS3_SIZE_SH_LITTLE);
1494 adjust_addrp = TRUE;
1500 case ALPHA_R_GPRELHIGH:
1501 _bfd_error_handler (_("%pB: %s unsupported"),
1502 input_bfd, "ALPHA_R_GPRELHIGH");
1503 bfd_set_error (bfd_error_bad_value);
1506 case ALPHA_R_GPRELLOW:
1507 _bfd_error_handler (_("%pB: %s unsupported"),
1508 input_bfd, "ALPHA_R_GPRELLOW");
1509 bfd_set_error (bfd_error_bad_value);
1513 /* xgettext:c-format */
1514 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1515 input_bfd, (int) r_type);
1516 bfd_set_error (bfd_error_bad_value);
1519 case ALPHA_R_IGNORE:
1520 /* This reloc appears after a GPDISP reloc. On earlier
1521 versions of OSF/1, It marked the position of the second
1522 instruction to be altered by the GPDISP reloc, but it is
1523 not otherwise used for anything. For some reason, the
1524 address of the relocation does not appear to include the
1525 section VMA, unlike the other relocation types. */
1526 if (bfd_link_relocatable (info))
1527 H_PUT_64 (input_bfd, input_section->output_offset + r_vaddr,
1529 adjust_addrp = FALSE;
1532 case ALPHA_R_REFLONG:
1533 case ALPHA_R_REFQUAD:
1538 case ALPHA_R_BRADDR:
1539 case ALPHA_R_SREL16:
1540 case ALPHA_R_SREL32:
1541 case ALPHA_R_SREL64:
1543 addend += - (r_vaddr + 4);
1547 case ALPHA_R_GPREL32:
1548 /* This relocation is used in a switch table. It is a 32
1549 bit offset from the current GP value. We must adjust it
1550 by the different between the original GP value and the
1551 current GP value. */
1553 addend = ecoff_data (input_bfd)->gp - gp;
1557 case ALPHA_R_LITERAL:
1558 /* This is a reference to a literal value, generally
1559 (always?) in the .lita section. This is a 16 bit GP
1560 relative relocation. Sometimes the subsequent reloc is a
1561 LITUSE reloc, which indicates how this reloc is used.
1562 This sometimes permits rewriting the two instructions
1563 referred to by the LITERAL and the LITUSE into different
1564 instructions which do not refer to .lita. This can save
1565 a memory reference, and permits removing a value from
1566 .lita thus saving GP relative space.
1568 We do not these optimizations. To do them we would need
1569 to arrange to link the .lita section first, so that by
1570 the time we got here we would know the final values to
1571 use. This would not be particularly difficult, but it is
1572 not currently implemented. */
1574 /* I believe that the LITERAL reloc will only apply to a ldq
1575 or ldl instruction, so check my assumption. */
1579 insn = bfd_get_32 (input_bfd,
1580 contents + r_vaddr - input_section->vma);
1581 BFD_ASSERT (((insn >> 26) & 0x3f) == 0x29
1582 || ((insn >> 26) & 0x3f) == 0x28);
1586 addend = ecoff_data (input_bfd)->gp - gp;
1590 case ALPHA_R_LITUSE:
1591 /* See ALPHA_R_LITERAL above for the uses of this reloc. It
1592 does not cause anything to happen, itself. */
1595 case ALPHA_R_GPDISP:
1596 /* This marks the ldah of an ldah/lda pair which loads the
1597 gp register with the difference of the gp value and the
1598 current location. The second of the pair is r_symndx
1599 bytes ahead. It used to be marked with an ALPHA_R_IGNORE
1600 reloc, but OSF/1 3.2 no longer does that. */
1602 unsigned long insn1, insn2;
1604 /* Get the two instructions. */
1605 insn1 = bfd_get_32 (input_bfd,
1606 contents + r_vaddr - input_section->vma);
1607 insn2 = bfd_get_32 (input_bfd,
1610 - input_section->vma
1613 BFD_ASSERT (((insn1 >> 26) & 0x3f) == 0x09); /* ldah */
1614 BFD_ASSERT (((insn2 >> 26) & 0x3f) == 0x08); /* lda */
1616 /* Get the existing addend. We must account for the sign
1617 extension done by lda and ldah. */
1618 addend = ((insn1 & 0xffff) << 16) + (insn2 & 0xffff);
1621 /* This is addend -= 0x100000000 without causing an
1622 integer overflow on a 32 bit host. */
1623 addend -= 0x80000000;
1624 addend -= 0x80000000;
1629 /* The existing addend includes the difference between the
1630 gp of the input BFD and the address in the input BFD.
1631 We want to change this to the difference between the
1632 final GP and the final address. */
1634 - ecoff_data (input_bfd)->gp
1635 + input_section->vma
1636 - (input_section->output_section->vma
1637 + input_section->output_offset));
1639 /* Change the instructions, accounting for the sign
1640 extension, and write them out. */
1641 if (addend & 0x8000)
1643 insn1 = (insn1 & 0xffff0000) | ((addend >> 16) & 0xffff);
1644 insn2 = (insn2 & 0xffff0000) | (addend & 0xffff);
1646 bfd_put_32 (input_bfd, (bfd_vma) insn1,
1647 contents + r_vaddr - input_section->vma);
1648 bfd_put_32 (input_bfd, (bfd_vma) insn2,
1649 contents + r_vaddr - input_section->vma + r_symndx);
1655 case ALPHA_R_OP_PUSH:
1656 case ALPHA_R_OP_PSUB:
1657 case ALPHA_R_OP_PRSHIFT:
1658 /* Manipulate values on the reloc evaluation stack. The
1659 r_vaddr field is not an address in input_section, it is
1660 the current value (including any addend) of the object
1666 s = symndx_to_section[r_symndx];
1667 if (s == (asection *) NULL)
1669 addend = s->output_section->vma + s->output_offset - s->vma;
1673 struct ecoff_link_hash_entry *h;
1675 h = sym_hashes[r_symndx];
1676 if (h == (struct ecoff_link_hash_entry *) NULL)
1679 if (! bfd_link_relocatable (info))
1681 if (h->root.type == bfd_link_hash_defined
1682 || h->root.type == bfd_link_hash_defweak)
1683 addend = (h->root.u.def.value
1684 + h->root.u.def.section->output_section->vma
1685 + h->root.u.def.section->output_offset);
1688 /* Note that we pass the address as 0, since we
1689 do not have a meaningful number for the
1690 location within the section that is being
1692 (*info->callbacks->undefined_symbol)
1693 (info, h->root.root.string, input_bfd,
1694 input_section, (bfd_vma) 0, TRUE);
1700 if (h->root.type != bfd_link_hash_defined
1701 && h->root.type != bfd_link_hash_defweak
1704 /* This symbol is not being written out. Pass
1705 the address as 0, as with undefined_symbol,
1707 (*info->callbacks->unattached_reloc)
1708 (info, h->root.root.string,
1709 input_bfd, input_section, (bfd_vma) 0);
1712 addend = alpha_convert_external_reloc (output_bfd, info,
1720 if (bfd_link_relocatable (info))
1722 /* Adjust r_vaddr by the addend. */
1723 H_PUT_64 (input_bfd, addend, ext_rel->r_vaddr);
1729 case ALPHA_R_OP_PUSH:
1730 if (tos >= RELOC_STACKSIZE)
1732 stack[tos++] = addend;
1735 case ALPHA_R_OP_PSUB:
1738 stack[tos - 1] -= addend;
1741 case ALPHA_R_OP_PRSHIFT:
1744 stack[tos - 1] >>= addend;
1749 adjust_addrp = FALSE;
1752 case ALPHA_R_OP_STORE:
1753 /* Store a value from the reloc stack into a bitfield. If
1754 we are generating relocatable output, all we do is
1755 adjust the address of the reloc. */
1756 if (! bfd_link_relocatable (info))
1764 /* Get the relocation mask. The separate steps and the
1765 casts to bfd_vma are attempts to avoid a bug in the
1766 Alpha OSF 1.3 C compiler. See reloc.c for more
1769 mask <<= (bfd_vma) r_size;
1772 /* FIXME: I don't know what kind of overflow checking,
1773 if any, should be done here. */
1774 val = bfd_get_64 (input_bfd,
1775 contents + r_vaddr - input_section->vma);
1776 val &=~ mask << (bfd_vma) r_offset;
1777 val |= (stack[--tos] & mask) << (bfd_vma) r_offset;
1778 bfd_put_64 (input_bfd, val,
1779 contents + r_vaddr - input_section->vma);
1783 case ALPHA_R_GPVALUE:
1784 /* I really don't know if this does the right thing. */
1785 gp = ecoff_data (input_bfd)->gp + r_symndx;
1786 gp_undefined = FALSE;
1792 reloc_howto_type *howto;
1793 struct ecoff_link_hash_entry *h = NULL;
1796 bfd_reloc_status_type r;
1798 /* Perform a relocation. */
1800 howto = &alpha_howto_table[r_type];
1804 h = sym_hashes[r_symndx];
1805 /* If h is NULL, that means that there is a reloc
1806 against an external symbol which we thought was just
1807 a debugging symbol. This should not happen. */
1808 if (h == (struct ecoff_link_hash_entry *) NULL)
1813 if (r_symndx >= NUM_RELOC_SECTIONS)
1816 s = symndx_to_section[r_symndx];
1818 if (s == (asection *) NULL)
1822 if (bfd_link_relocatable (info))
1824 /* We are generating relocatable output, and must
1825 convert the existing reloc. */
1828 if (h->root.type != bfd_link_hash_defined
1829 && h->root.type != bfd_link_hash_defweak
1832 /* This symbol is not being written out. */
1833 (*info->callbacks->unattached_reloc)
1834 (info, h->root.root.string, input_bfd,
1835 input_section, r_vaddr - input_section->vma);
1838 relocation = alpha_convert_external_reloc (output_bfd,
1846 /* This is a relocation against a section. Adjust
1847 the value by the amount the section moved. */
1848 relocation = (s->output_section->vma
1853 /* If this is PC relative, the existing object file
1854 appears to already have the reloc worked out. We
1855 must subtract out the old value and add in the new
1857 if (howto->pc_relative)
1858 relocation -= (input_section->output_section->vma
1859 + input_section->output_offset
1860 - input_section->vma);
1862 /* Put in any addend. */
1863 relocation += addend;
1865 /* Adjust the contents. */
1866 r = _bfd_relocate_contents (howto, input_bfd, relocation,
1869 - input_section->vma));
1873 /* We are producing a final executable. */
1876 /* This is a reloc against a symbol. */
1877 if (h->root.type == bfd_link_hash_defined
1878 || h->root.type == bfd_link_hash_defweak)
1882 hsec = h->root.u.def.section;
1883 relocation = (h->root.u.def.value
1884 + hsec->output_section->vma
1885 + hsec->output_offset);
1889 (*info->callbacks->undefined_symbol)
1890 (info, h->root.root.string, input_bfd, input_section,
1891 r_vaddr - input_section->vma, TRUE);
1897 /* This is a reloc against a section. */
1898 relocation = (s->output_section->vma
1902 /* Adjust a PC relative relocation by removing the
1903 reference to the original source section. */
1904 if (howto->pc_relative)
1905 relocation += input_section->vma;
1908 r = _bfd_final_link_relocate (howto,
1912 r_vaddr - input_section->vma,
1917 if (r != bfd_reloc_ok)
1922 case bfd_reloc_outofrange:
1924 case bfd_reloc_overflow:
1929 name = sym_hashes[r_symndx]->root.root.string;
1931 name = bfd_section_name (input_bfd,
1932 symndx_to_section[r_symndx]);
1933 (*info->callbacks->reloc_overflow)
1934 (info, NULL, name, alpha_howto_table[r_type].name,
1935 (bfd_vma) 0, input_bfd, input_section,
1936 r_vaddr - input_section->vma);
1943 if (bfd_link_relocatable (info) && adjust_addrp)
1945 /* Change the address of the relocation. */
1946 H_PUT_64 (input_bfd,
1947 (input_section->output_section->vma
1948 + input_section->output_offset
1949 - input_section->vma
1954 if (gp_usedp && gp_undefined)
1956 (*info->callbacks->reloc_dangerous)
1957 (info, _("GP relative relocation used when GP not defined"),
1958 input_bfd, input_section, r_vaddr - input_section->vma);
1959 /* Only give the error once per link. */
1961 _bfd_set_gp_value (output_bfd, gp);
1962 gp_undefined = FALSE;
1972 /* Do final adjustments to the filehdr and the aouthdr. This routine
1973 sets the dynamic bits in the file header. */
1976 alpha_adjust_headers (bfd *abfd,
1977 struct internal_filehdr *fhdr,
1978 struct internal_aouthdr *ahdr ATTRIBUTE_UNUSED)
1980 if ((abfd->flags & (DYNAMIC | EXEC_P)) == (DYNAMIC | EXEC_P))
1981 fhdr->f_flags |= F_ALPHA_CALL_SHARED;
1982 else if ((abfd->flags & DYNAMIC) != 0)
1983 fhdr->f_flags |= F_ALPHA_SHARABLE;
1987 /* Archive handling. In OSF/1 (or Digital Unix) v3.2, Digital
1988 introduced archive packing, in which the elements in an archive are
1989 optionally compressed using a simple dictionary scheme. We know
1990 how to read such archives, but we don't write them. */
1992 #define alpha_ecoff_slurp_armap _bfd_ecoff_slurp_armap
1993 #define alpha_ecoff_slurp_extended_name_table \
1994 _bfd_ecoff_slurp_extended_name_table
1995 #define alpha_ecoff_construct_extended_name_table \
1996 _bfd_ecoff_construct_extended_name_table
1997 #define alpha_ecoff_truncate_arname _bfd_ecoff_truncate_arname
1998 #define alpha_ecoff_write_armap _bfd_ecoff_write_armap
1999 #define alpha_ecoff_write_ar_hdr _bfd_generic_write_ar_hdr
2000 #define alpha_ecoff_generic_stat_arch_elt _bfd_ecoff_generic_stat_arch_elt
2001 #define alpha_ecoff_update_armap_timestamp _bfd_ecoff_update_armap_timestamp
2003 /* A compressed file uses this instead of ARFMAG. */
2005 #define ARFZMAG "Z\012"
2007 /* Read an archive header. This is like the standard routine, but it
2008 also accepts ARFZMAG. */
2011 alpha_ecoff_read_ar_hdr (bfd *abfd)
2013 struct areltdata *ret;
2016 ret = (struct areltdata *) _bfd_generic_read_ar_hdr_mag (abfd, ARFZMAG);
2020 h = (struct ar_hdr *) ret->arch_header;
2021 if (strncmp (h->ar_fmag, ARFZMAG, 2) == 0)
2025 /* This is a compressed file. We must set the size correctly.
2026 The size is the eight bytes after the dummy file header. */
2027 if (bfd_seek (abfd, (file_ptr) FILHSZ, SEEK_CUR) != 0
2028 || bfd_bread (ab, (bfd_size_type) 8, abfd) != 8
2029 || bfd_seek (abfd, (file_ptr) (- (FILHSZ + 8)), SEEK_CUR) != 0)
2032 ret->parsed_size = H_GET_64 (abfd, ab);
2038 /* Get an archive element at a specified file position. This is where
2039 we uncompress the archive element if necessary. */
2042 alpha_ecoff_get_elt_at_filepos (bfd *archive, file_ptr filepos)
2045 struct areltdata *tdata;
2050 struct bfd_in_memory *bim;
2053 nbfd = _bfd_get_elt_at_filepos (archive, filepos);
2057 if ((nbfd->flags & BFD_IN_MEMORY) != 0)
2059 /* We have already expanded this BFD. */
2063 tdata = (struct areltdata *) nbfd->arelt_data;
2064 hdr = (struct ar_hdr *) tdata->arch_header;
2065 if (strncmp (hdr->ar_fmag, ARFZMAG, 2) != 0)
2068 /* We must uncompress this element. We do this by copying it into a
2069 memory buffer, and making bfd_bread and bfd_seek use that buffer.
2070 This can use a lot of memory, but it's simpler than getting a
2071 temporary file, making that work with the file descriptor caching
2072 code, and making sure that it is deleted at all appropriate
2073 times. It can be changed if it ever becomes important. */
2075 /* The compressed file starts with a dummy ECOFF file header. */
2076 if (bfd_seek (nbfd, (file_ptr) FILHSZ, SEEK_SET) != 0)
2079 /* The next eight bytes are the real file size. */
2080 if (bfd_bread (ab, (bfd_size_type) 8, nbfd) != 8)
2082 size = H_GET_64 (nbfd, ab);
2087 bfd_byte dict[4096];
2091 buf = (bfd_byte *) bfd_malloc (size);
2098 /* I don't know what the next eight bytes are for. */
2099 if (bfd_bread (ab, (bfd_size_type) 8, nbfd) != 8)
2102 /* This is the uncompression algorithm. It's a simple
2103 dictionary based scheme in which each character is predicted
2104 by a hash of the previous three characters. A control byte
2105 indicates whether the character is predicted or whether it
2106 appears in the input stream; each control byte manages the
2107 next eight bytes in the output stream. */
2108 memset (dict, 0, sizeof dict);
2110 while (bfd_bread (&b, (bfd_size_type) 1, nbfd) == 1)
2114 for (i = 0; i < 8; i++, b >>= 1)
2122 if (! bfd_bread (&n, (bfd_size_type) 1, nbfd))
2135 h &= sizeof dict - 1;
2143 /* Now the uncompressed file contents are in buf. */
2144 bim = ((struct bfd_in_memory *)
2145 bfd_malloc ((bfd_size_type) sizeof (struct bfd_in_memory)));
2151 nbfd->mtime_set = TRUE;
2152 nbfd->mtime = strtol (hdr->ar_date, (char **) NULL, 10);
2154 nbfd->flags |= BFD_IN_MEMORY;
2155 nbfd->iostream = bim;
2156 nbfd->iovec = &_bfd_memory_iovec;
2158 BFD_ASSERT (! nbfd->cacheable);
2170 /* Open the next archived file. */
2173 alpha_ecoff_openr_next_archived_file (bfd *archive, bfd *last_file)
2175 ufile_ptr filestart;
2177 if (last_file == NULL)
2178 filestart = bfd_ardata (archive)->first_file_filepos;
2181 struct areltdata *t;
2185 /* We can't use arelt_size here, because that uses parsed_size,
2186 which is the uncompressed size. We need the compressed size. */
2187 t = (struct areltdata *) last_file->arelt_data;
2188 h = (struct ar_hdr *) t->arch_header;
2189 size = strtol (h->ar_size, (char **) NULL, 10);
2191 /* Pad to an even boundary...
2192 Note that last_file->origin can be odd in the case of
2193 BSD-4.4-style element with a long odd size. */
2194 filestart = last_file->proxy_origin + size;
2195 filestart += filestart % 2;
2196 if (filestart < last_file->proxy_origin)
2198 /* Prevent looping. See PR19256. */
2199 bfd_set_error (bfd_error_malformed_archive);
2204 return alpha_ecoff_get_elt_at_filepos (archive, filestart);
2207 /* Open the archive file given an index into the armap. */
2210 alpha_ecoff_get_elt_at_index (bfd *abfd, symindex sym_index)
2214 entry = bfd_ardata (abfd)->symdefs + sym_index;
2215 return alpha_ecoff_get_elt_at_filepos (abfd, entry->file_offset);
2219 alpha_ecoff_swap_coff_aux_in (bfd *abfd ATTRIBUTE_UNUSED,
2220 void *ext1 ATTRIBUTE_UNUSED,
2221 int type ATTRIBUTE_UNUSED,
2222 int in_class ATTRIBUTE_UNUSED,
2223 int indx ATTRIBUTE_UNUSED,
2224 int numaux ATTRIBUTE_UNUSED,
2225 void *in1 ATTRIBUTE_UNUSED)
2230 alpha_ecoff_swap_coff_sym_in (bfd *abfd ATTRIBUTE_UNUSED,
2231 void *ext1 ATTRIBUTE_UNUSED,
2232 void *in1 ATTRIBUTE_UNUSED)
2237 alpha_ecoff_swap_coff_lineno_in (bfd *abfd ATTRIBUTE_UNUSED,
2238 void *ext1 ATTRIBUTE_UNUSED,
2239 void *in1 ATTRIBUTE_UNUSED)
2244 alpha_ecoff_swap_coff_aux_out (bfd *abfd ATTRIBUTE_UNUSED,
2245 void *inp ATTRIBUTE_UNUSED,
2246 int type ATTRIBUTE_UNUSED,
2247 int in_class ATTRIBUTE_UNUSED,
2248 int indx ATTRIBUTE_UNUSED,
2249 int numaux ATTRIBUTE_UNUSED,
2250 void *extp ATTRIBUTE_UNUSED)
2256 alpha_ecoff_swap_coff_sym_out (bfd *abfd ATTRIBUTE_UNUSED,
2257 void *inp ATTRIBUTE_UNUSED,
2258 void *extp ATTRIBUTE_UNUSED)
2264 alpha_ecoff_swap_coff_lineno_out (bfd *abfd ATTRIBUTE_UNUSED,
2265 void *inp ATTRIBUTE_UNUSED,
2266 void *extp ATTRIBUTE_UNUSED)
2272 alpha_ecoff_swap_coff_reloc_out (bfd *abfd ATTRIBUTE_UNUSED,
2273 void *inp ATTRIBUTE_UNUSED,
2274 void *extp ATTRIBUTE_UNUSED)
2279 /* This is the ECOFF backend structure. The backend field of the
2280 target vector points to this. */
2282 static const struct ecoff_backend_data alpha_ecoff_backend_data =
2284 /* COFF backend structure. */
2286 alpha_ecoff_swap_coff_aux_in, alpha_ecoff_swap_coff_sym_in,
2287 alpha_ecoff_swap_coff_lineno_in, alpha_ecoff_swap_coff_aux_out,
2288 alpha_ecoff_swap_coff_sym_out, alpha_ecoff_swap_coff_lineno_out,
2289 alpha_ecoff_swap_coff_reloc_out,
2290 alpha_ecoff_swap_filehdr_out, alpha_ecoff_swap_aouthdr_out,
2291 alpha_ecoff_swap_scnhdr_out,
2292 FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, FILNMLEN, TRUE,
2293 ECOFF_NO_LONG_SECTION_NAMES, 4, FALSE, 2, 32768,
2294 alpha_ecoff_swap_filehdr_in, alpha_ecoff_swap_aouthdr_in,
2295 alpha_ecoff_swap_scnhdr_in, NULL,
2296 alpha_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook,
2297 alpha_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags,
2298 _bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table,
2299 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
2300 NULL, NULL, NULL, NULL
2302 /* Supported architecture. */
2304 /* Initial portion of armap string. */
2306 /* The page boundary used to align sections in a demand-paged
2307 executable file. E.g., 0x1000. */
2309 /* TRUE if the .rdata section is part of the text segment, as on the
2310 Alpha. FALSE if .rdata is part of the data segment, as on the
2313 /* Bitsize of constructor entries. */
2315 /* Reloc to use for constructor entries. */
2316 &alpha_howto_table[ALPHA_R_REFQUAD],
2318 /* Symbol table magic number. */
2320 /* Alignment of debugging information. E.g., 4. */
2322 /* Sizes of external symbolic information. */
2323 sizeof (struct hdr_ext),
2324 sizeof (struct dnr_ext),
2325 sizeof (struct pdr_ext),
2326 sizeof (struct sym_ext),
2327 sizeof (struct opt_ext),
2328 sizeof (struct fdr_ext),
2329 sizeof (struct rfd_ext),
2330 sizeof (struct ext_ext),
2331 /* Functions to swap in external symbolic data. */
2340 _bfd_ecoff_swap_tir_in,
2341 _bfd_ecoff_swap_rndx_in,
2342 /* Functions to swap out external symbolic data. */
2351 _bfd_ecoff_swap_tir_out,
2352 _bfd_ecoff_swap_rndx_out,
2353 /* Function to read in symbolic data. */
2354 _bfd_ecoff_slurp_symbolic_info
2356 /* External reloc size. */
2358 /* Reloc swapping functions. */
2359 alpha_ecoff_swap_reloc_in,
2360 alpha_ecoff_swap_reloc_out,
2361 /* Backend reloc tweaking. */
2362 alpha_adjust_reloc_in,
2363 alpha_adjust_reloc_out,
2364 /* Relocate section contents while linking. */
2365 alpha_relocate_section,
2366 /* Do final adjustments to filehdr and aouthdr. */
2367 alpha_adjust_headers,
2368 /* Read an element from an archive at a given file position. */
2369 alpha_ecoff_get_elt_at_filepos
2372 /* Looking up a reloc type is Alpha specific. */
2373 #define _bfd_ecoff_bfd_reloc_type_lookup alpha_bfd_reloc_type_lookup
2374 #define _bfd_ecoff_bfd_reloc_name_lookup \
2375 alpha_bfd_reloc_name_lookup
2377 /* So is getting relocated section contents. */
2378 #define _bfd_ecoff_bfd_get_relocated_section_contents \
2379 alpha_ecoff_get_relocated_section_contents
2381 /* Handling file windows is generic. */
2382 #define _bfd_ecoff_get_section_contents_in_window \
2383 _bfd_generic_get_section_contents_in_window
2385 /* Input section flag lookup is generic. */
2386 #define _bfd_ecoff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
2388 /* Relaxing sections is generic. */
2389 #define _bfd_ecoff_bfd_relax_section bfd_generic_relax_section
2390 #define _bfd_ecoff_bfd_gc_sections bfd_generic_gc_sections
2391 #define _bfd_ecoff_bfd_merge_sections bfd_generic_merge_sections
2392 #define _bfd_ecoff_bfd_is_group_section bfd_generic_is_group_section
2393 #define _bfd_ecoff_bfd_discard_group bfd_generic_discard_group
2394 #define _bfd_ecoff_section_already_linked \
2395 _bfd_coff_section_already_linked
2396 #define _bfd_ecoff_bfd_define_common_symbol bfd_generic_define_common_symbol
2397 #define _bfd_ecoff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
2398 #define _bfd_ecoff_bfd_define_start_stop bfd_generic_define_start_stop
2399 #define _bfd_ecoff_bfd_link_check_relocs _bfd_generic_link_check_relocs
2401 /* Installing internal relocations in a section is also generic. */
2402 #define _bfd_ecoff_set_reloc _bfd_generic_set_reloc
2404 const bfd_target alpha_ecoff_le_vec =
2406 "ecoff-littlealpha", /* name */
2407 bfd_target_ecoff_flavour,
2408 BFD_ENDIAN_LITTLE, /* data byte order is little */
2409 BFD_ENDIAN_LITTLE, /* header byte order is little */
2411 (HAS_RELOC | EXEC_P /* object flags */
2412 | HAS_LINENO | HAS_DEBUG
2413 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
2415 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
2416 0, /* leading underscore */
2417 ' ', /* ar_pad_char */
2418 15, /* ar_max_namelen */
2419 0, /* match priority. */
2420 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2421 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2422 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
2423 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2424 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2425 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
2427 { /* bfd_check_format */
2429 alpha_ecoff_object_p,
2430 bfd_generic_archive_p,
2433 { /* bfd_set_format */
2434 _bfd_bool_bfd_false_error,
2435 _bfd_ecoff_mkobject,
2436 _bfd_generic_mkarchive,
2437 _bfd_bool_bfd_false_error
2439 { /* bfd_write_contents */
2440 _bfd_bool_bfd_false_error,
2441 _bfd_ecoff_write_object_contents,
2442 _bfd_write_archive_contents,
2443 _bfd_bool_bfd_false_error
2446 BFD_JUMP_TABLE_GENERIC (_bfd_ecoff),
2447 BFD_JUMP_TABLE_COPY (_bfd_ecoff),
2448 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2449 BFD_JUMP_TABLE_ARCHIVE (alpha_ecoff),
2450 BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff),
2451 BFD_JUMP_TABLE_RELOCS (_bfd_ecoff),
2452 BFD_JUMP_TABLE_WRITE (_bfd_ecoff),
2453 BFD_JUMP_TABLE_LINK (_bfd_ecoff),
2454 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2458 &alpha_ecoff_backend_data