1 /* BFD back-end for PowerPC Microsoft Portable Executable files.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 Free Software Foundation, Inc.
6 Original version pieced together by Kim Knuttila (krk@cygnus.com)
8 There is nothing new under the sun. This file draws a lot on other
9 coff files, in particular, those for the rs/6000, alpha, mips, and
10 intel backends, and the PE work for the arm.
12 This file is part of BFD, the Binary File Descriptor library.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, 59 Temple Place - Suite 330,
27 Boston, MA 02111-1307, USA. */
31 - relocs generated by gas
32 - ld will link files, but they do not run.
33 - dlltool will not produce correct output in some .reloc cases, and will
34 not produce the right glue code for dll function calls. */
41 #include "coff/powerpc.h"
42 #include "coff/internal.h"
50 #define BADMAG(x) PPCBADMAG(x)
54 /* This file is compiled more than once, but we only compile the
55 final_link routine once. */
56 extern bfd_boolean ppc_bfd_coff_final_link
57 PARAMS ((bfd *, struct bfd_link_info *));
58 extern void dump_toc PARAMS ((PTR));
60 /* The toc is a set of bfd_vma fields. We use the fact that valid
61 addresses are even (i.e. the bit representing "1" is off) to allow
62 us to encode a little extra information in the field
63 - Unallocated addresses are initialized to 1.
64 - Allocated addresses are even numbers.
65 The first time we actually write a reference to the toc in the bfd,
66 we want to record that fact in a fixup file (if it is asked for), so
67 we keep track of whether or not an address has been written by marking
68 the low order bit with a "1" upon writing. */
70 #define SET_UNALLOCATED(x) ((x) = 1)
71 #define IS_UNALLOCATED(x) ((x) == 1)
73 #define IS_WRITTEN(x) ((x) & 1)
74 #define MARK_AS_WRITTEN(x) ((x) |= 1)
75 #define MAKE_ADDR_AGAIN(x) ((x) &= ~1)
77 /* Turn on this check if you suspect something amiss in the hash tables. */
80 /* Need a 7 char string for an eye catcher. */
83 #define HASH_CHECK_DCL char eye_catcher[8];
84 #define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE)
85 #define HASH_CHECK(addr) \
86 if (strcmp(addr->eye_catcher, EYE) != 0) \
89 _("File %s, line %d, Hash check failure, bad eye %8s\n"), \
90 __FILE__, __LINE__, addr->eye_catcher); \
96 #define HASH_CHECK_DCL
97 #define HASH_CHECK_INIT(ret)
98 #define HASH_CHECK(addr)
102 /* In order not to add an int to every hash table item for every coff
103 linker, we define our own hash table, derived from the coff one. */
105 /* PE linker hash table entries. */
107 struct ppc_coff_link_hash_entry
109 struct coff_link_hash_entry root; /* First entry, as required. */
111 /* As we wonder around the relocs, we'll keep the assigned toc_offset
113 bfd_vma toc_offset; /* Our addition, as required. */
115 unsigned long int glue_insn;
120 /* PE linker hash table. */
122 struct ppc_coff_link_hash_table
124 struct coff_link_hash_table root; /* First entry, as required. */
127 static struct bfd_hash_entry *ppc_coff_link_hash_newfunc
128 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
130 static bfd_boolean ppc_coff_link_hash_table_init
131 PARAMS ((struct ppc_coff_link_hash_table *, bfd *,
132 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
133 struct bfd_hash_table *,
135 static struct bfd_link_hash_table *ppc_coff_link_hash_table_create
137 static bfd_boolean coff_ppc_relocate_section
138 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
139 struct internal_reloc *, struct internal_syment *, asection **));
140 static reloc_howto_type *coff_ppc_rtype_to_howto
141 PARAMS ((bfd *, asection *, struct internal_reloc *,
142 struct coff_link_hash_entry *, struct internal_syment *,
145 /* Routine to create an entry in the link hash table. */
147 static struct bfd_hash_entry *
148 ppc_coff_link_hash_newfunc (entry, table, string)
149 struct bfd_hash_entry *entry;
150 struct bfd_hash_table *table;
153 struct ppc_coff_link_hash_entry *ret =
154 (struct ppc_coff_link_hash_entry *) entry;
156 /* Allocate the structure if it has not already been allocated by a
158 if (ret == (struct ppc_coff_link_hash_entry *) NULL)
159 ret = (struct ppc_coff_link_hash_entry *)
160 bfd_hash_allocate (table,
161 sizeof (struct ppc_coff_link_hash_entry));
163 if (ret == (struct ppc_coff_link_hash_entry *) NULL)
166 /* Call the allocation method of the superclass. */
167 ret = ((struct ppc_coff_link_hash_entry *)
168 _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret,
173 /* Initialize the local fields. */
174 SET_UNALLOCATED (ret->toc_offset);
175 ret->symbol_is_glue = 0;
178 HASH_CHECK_INIT (ret);
181 return (struct bfd_hash_entry *) ret;
184 /* Initialize a PE linker hash table. */
187 ppc_coff_link_hash_table_init (table, abfd, newfunc)
188 struct ppc_coff_link_hash_table *table;
190 struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
191 struct bfd_hash_table *,
194 return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc);
197 /* Create a PE linker hash table. */
199 static struct bfd_link_hash_table *
200 ppc_coff_link_hash_table_create (abfd)
203 struct ppc_coff_link_hash_table *ret;
204 bfd_size_type amt = sizeof (struct ppc_coff_link_hash_table);
206 ret = (struct ppc_coff_link_hash_table *) bfd_malloc (amt);
209 if (! ppc_coff_link_hash_table_init (ret, abfd,
210 ppc_coff_link_hash_newfunc))
213 return (struct bfd_link_hash_table *) NULL;
215 return &ret->root.root;
218 /* Now, tailor coffcode.h to use our hash stuff. */
220 #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create
222 /* The nt loader points the toc register to &toc + 32768, in order to
223 use the complete range of a 16-bit displacement. We have to adjust
224 for this when we fix up loads displaced off the toc reg. */
225 #define TOC_LOAD_ADJUSTMENT (-32768)
226 #define TOC_SECTION_NAME ".private.toc"
228 /* The main body of code is in coffcode.h. */
230 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
232 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
233 from smaller values. Start with zero, widen, *then* decrement. */
234 #define MINUS_ONE (((bfd_vma)0) - 1)
236 /* These should definitely go in a header file somewhere... */
239 #define IMAGE_REL_PPC_ABSOLUTE 0x0000
242 #define IMAGE_REL_PPC_ADDR64 0x0001
245 #define IMAGE_REL_PPC_ADDR32 0x0002
247 /* 26-bit address, shifted left 2 (branch absolute) */
248 #define IMAGE_REL_PPC_ADDR24 0x0003
251 #define IMAGE_REL_PPC_ADDR16 0x0004
253 /* 16-bit address, shifted left 2 (load doubleword) */
254 #define IMAGE_REL_PPC_ADDR14 0x0005
256 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
257 #define IMAGE_REL_PPC_REL24 0x0006
259 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
260 #define IMAGE_REL_PPC_REL14 0x0007
262 /* 16-bit offset from TOC base */
263 #define IMAGE_REL_PPC_TOCREL16 0x0008
265 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
266 #define IMAGE_REL_PPC_TOCREL14 0x0009
268 /* 32-bit addr w/o image base */
269 #define IMAGE_REL_PPC_ADDR32NB 0x000A
271 /* va of containing section (as in an image sectionhdr) */
272 #define IMAGE_REL_PPC_SECREL 0x000B
274 /* sectionheader number */
275 #define IMAGE_REL_PPC_SECTION 0x000C
277 /* substitute TOC restore instruction iff symbol is glue code */
278 #define IMAGE_REL_PPC_IFGLUE 0x000D
280 /* symbol is glue code; virtual address is TOC restore instruction */
281 #define IMAGE_REL_PPC_IMGLUE 0x000E
283 /* va of containing section (limited to 16 bits) */
284 #define IMAGE_REL_PPC_SECREL16 0x000F
286 /* Stuff to handle immediate data when the number of bits in the
287 data is greater than the number of bits in the immediate field
288 We need to do (usually) 32 bit arithmetic on 16 bit chunks. */
289 #define IMAGE_REL_PPC_REFHI 0x0010
290 #define IMAGE_REL_PPC_REFLO 0x0011
291 #define IMAGE_REL_PPC_PAIR 0x0012
293 /* This is essentially the same as tocrel16, with TOCDEFN assumed. */
294 #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013
296 /* Flag bits in IMAGE_RELOCATION.TYPE. */
298 /* Subtract reloc value rather than adding it. */
299 #define IMAGE_REL_PPC_NEG 0x0100
301 /* Fix branch prediction bit to predict branch taken. */
302 #define IMAGE_REL_PPC_BRTAKEN 0x0200
304 /* Fix branch prediction bit to predict branch not taken. */
305 #define IMAGE_REL_PPC_BRNTAKEN 0x0400
307 /* TOC slot defined in file (or, data in toc). */
308 #define IMAGE_REL_PPC_TOCDEFN 0x0800
310 /* Masks to isolate above values in IMAGE_RELOCATION.Type. */
311 #define IMAGE_REL_PPC_TYPEMASK 0x00FF
312 #define IMAGE_REL_PPC_FLAGMASK 0x0F00
314 #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK)
315 #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK)
316 #define EXTRACT_JUNK(x) \
317 ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK))
319 /* Static helper functions to make relocation work. */
320 /* (Work In Progress) */
322 static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd,
330 static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd,
338 static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd,
346 static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd,
355 static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd,
363 static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd,
371 static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd,
379 static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd,
387 static bfd_boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto));
389 /* FIXME: It'll take a while to get through all of these. I only need a few to
390 get us started, so those I'll make sure work. Those marked FIXME are either
391 completely unverified or have a specific unknown marked in the comment. */
393 /* Relocation entries for Windows/NT on PowerPC.
395 From the document "" we find the following listed as used relocs:
398 ADDR[64|32|16] : fields that hold addresses in data fields or the
399 16 bit displacement field on a load/store.
400 ADDR[24|14] : fields that hold addresses in branch and cond
401 branches. These represent [26|16] bit addresses.
402 The low order 2 bits are preserved.
403 REL[24|14] : branches relative to the Instruction Address
404 register. These represent [26|16] bit addresses,
405 as before. The instruction field will be zero, and
406 the address of the SYM will be inserted at link time.
407 TOCREL16 : 16 bit displacement field referring to a slot in
409 TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14.
410 ADDR32NB : 32 bit address relative to the virtual origin.
411 (On the alpha, this is always a linker generated thunk)
412 (i.e. 32bit addr relative to the image base)
413 SECREL : The value is relative to the start of the section
414 containing the symbol.
415 SECTION : access to the header containing the item. Supports the
418 In particular, note that the document does not indicate that the
419 relocations listed in the header file are used. */
422 static reloc_howto_type ppc_coff_howto_table[] =
424 /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */
426 HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */
428 0, /* size (0 = byte, 1 = short, 2 = long) */
430 FALSE, /* pc_relative */
432 complain_overflow_dont, /* dont complain_on_overflow */
433 0, /* special_function */
434 "ABSOLUTE", /* name */
435 FALSE, /* partial_inplace */
438 FALSE), /* pcrel_offset */
440 /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */
442 HOWTO(IMAGE_REL_PPC_ADDR64, /* type */
444 3, /* size (0 = byte, 1 = short, 2 = long) */
446 FALSE, /* pc_relative */
448 complain_overflow_bitfield, /* complain_on_overflow */
449 0, /* special_function */
451 TRUE, /* partial_inplace */
452 MINUS_ONE, /* src_mask */
453 MINUS_ONE, /* dst_mask */
454 FALSE), /* pcrel_offset */
456 /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */
458 HOWTO (IMAGE_REL_PPC_ADDR32, /* type */
460 2, /* size (0 = byte, 1 = short, 2 = long) */
462 FALSE, /* pc_relative */
464 complain_overflow_bitfield, /* complain_on_overflow */
465 0, /* special_function */
467 TRUE, /* partial_inplace */
468 0xffffffff, /* src_mask */
469 0xffffffff, /* dst_mask */
470 FALSE), /* pcrel_offset */
472 /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */
473 /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */
474 /* Of course, That's the IBM approved bit numbering, which is not what */
475 /* anyone else uses.... The li field is in bit 2 thru 25 */
477 HOWTO (IMAGE_REL_PPC_ADDR24, /* type */
479 2, /* size (0 = byte, 1 = short, 2 = long) */
481 FALSE, /* pc_relative */
483 complain_overflow_bitfield, /* complain_on_overflow */
484 0, /* special_function */
486 TRUE, /* partial_inplace */
487 0x07fffffc, /* src_mask */
488 0x07fffffc, /* dst_mask */
489 FALSE), /* pcrel_offset */
491 /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */
493 HOWTO (IMAGE_REL_PPC_ADDR16, /* type */
495 1, /* size (0 = byte, 1 = short, 2 = long) */
497 FALSE, /* pc_relative */
499 complain_overflow_signed, /* complain_on_overflow */
500 0, /* special_function */
502 TRUE, /* partial_inplace */
503 0xffff, /* src_mask */
504 0xffff, /* dst_mask */
505 FALSE), /* pcrel_offset */
507 /* IMAGE_REL_PPC_ADDR14 0x0005 */
508 /* 16-bit address, shifted left 2 (load doubleword) */
509 /* FIXME: the mask is likely wrong, and the bit position may be as well */
511 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
513 1, /* size (0 = byte, 1 = short, 2 = long) */
515 FALSE, /* pc_relative */
517 complain_overflow_signed, /* complain_on_overflow */
518 0, /* special_function */
520 TRUE, /* partial_inplace */
521 0xffff, /* src_mask */
522 0xffff, /* dst_mask */
523 FALSE), /* pcrel_offset */
525 /* IMAGE_REL_PPC_REL24 0x0006 */
526 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
528 HOWTO (IMAGE_REL_PPC_REL24, /* type */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
532 TRUE, /* pc_relative */
534 complain_overflow_signed, /* complain_on_overflow */
535 0, /* special_function */
537 TRUE, /* partial_inplace */
538 0x3fffffc, /* src_mask */
539 0x3fffffc, /* dst_mask */
540 FALSE), /* pcrel_offset */
542 /* IMAGE_REL_PPC_REL14 0x0007 */
543 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
544 /* FIXME: the mask is likely wrong, and the bit position may be as well */
545 /* FIXME: how does it know how far to shift? */
547 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
549 1, /* size (0 = byte, 1 = short, 2 = long) */
551 FALSE, /* pc_relative */
553 complain_overflow_signed, /* complain_on_overflow */
554 0, /* special_function */
556 TRUE, /* partial_inplace */
557 0xffff, /* src_mask */
558 0xffff, /* dst_mask */
559 TRUE), /* pcrel_offset */
561 /* IMAGE_REL_PPC_TOCREL16 0x0008 */
562 /* 16-bit offset from TOC base */
564 HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */
566 1, /* size (0 = byte, 1 = short, 2 = long) */
568 FALSE, /* pc_relative */
570 complain_overflow_dont, /* complain_on_overflow */
571 ppc_toc16_reloc, /* special_function */
572 "TOCREL16", /* name */
573 FALSE, /* partial_inplace */
574 0xffff, /* src_mask */
575 0xffff, /* dst_mask */
576 FALSE), /* pcrel_offset */
578 /* IMAGE_REL_PPC_TOCREL14 0x0009 */
579 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
581 HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */
583 1, /* size (0 = byte, 1 = short, 2 = long) */
585 FALSE, /* pc_relative */
587 complain_overflow_signed, /* complain_on_overflow */
588 0, /* special_function */
589 "TOCREL14", /* name */
590 FALSE, /* partial_inplace */
591 0xffff, /* src_mask */
592 0xffff, /* dst_mask */
593 FALSE), /* pcrel_offset */
595 /* IMAGE_REL_PPC_ADDR32NB 0x000A */
596 /* 32-bit addr w/ image base */
598 HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */
600 2, /* size (0 = byte, 1 = short, 2 = long) */
602 FALSE, /* pc_relative */
604 complain_overflow_signed, /* complain_on_overflow */
605 0, /* special_function */
606 "ADDR32NB", /* name */
607 TRUE, /* partial_inplace */
608 0xffffffff, /* src_mask */
609 0xffffffff, /* dst_mask */
610 FALSE), /* pcrel_offset */
612 /* IMAGE_REL_PPC_SECREL 0x000B */
613 /* va of containing section (as in an image sectionhdr) */
615 HOWTO (IMAGE_REL_PPC_SECREL,/* type */
617 2, /* size (0 = byte, 1 = short, 2 = long) */
619 FALSE, /* pc_relative */
621 complain_overflow_signed, /* complain_on_overflow */
622 ppc_secrel_reloc, /* special_function */
624 TRUE, /* partial_inplace */
625 0xffffffff, /* src_mask */
626 0xffffffff, /* dst_mask */
627 TRUE), /* pcrel_offset */
629 /* IMAGE_REL_PPC_SECTION 0x000C */
630 /* sectionheader number */
632 HOWTO (IMAGE_REL_PPC_SECTION,/* type */
634 2, /* size (0 = byte, 1 = short, 2 = long) */
636 FALSE, /* pc_relative */
638 complain_overflow_signed, /* complain_on_overflow */
639 ppc_section_reloc, /* special_function */
640 "SECTION", /* name */
641 TRUE, /* partial_inplace */
642 0xffffffff, /* src_mask */
643 0xffffffff, /* dst_mask */
644 TRUE), /* pcrel_offset */
646 /* IMAGE_REL_PPC_IFGLUE 0x000D */
647 /* substitute TOC restore instruction iff symbol is glue code */
649 HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */
651 2, /* size (0 = byte, 1 = short, 2 = long) */
653 FALSE, /* pc_relative */
655 complain_overflow_signed, /* complain_on_overflow */
656 0, /* special_function */
658 TRUE, /* partial_inplace */
659 0xffffffff, /* src_mask */
660 0xffffffff, /* dst_mask */
661 FALSE), /* pcrel_offset */
663 /* IMAGE_REL_PPC_IMGLUE 0x000E */
664 /* symbol is glue code; virtual address is TOC restore instruction */
666 HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
670 FALSE, /* pc_relative */
672 complain_overflow_dont, /* complain_on_overflow */
673 ppc_imglue_reloc, /* special_function */
675 FALSE, /* partial_inplace */
676 0xffffffff, /* src_mask */
677 0xffffffff, /* dst_mask */
678 FALSE), /* pcrel_offset */
680 /* IMAGE_REL_PPC_SECREL16 0x000F */
681 /* va of containing section (limited to 16 bits) */
683 HOWTO (IMAGE_REL_PPC_SECREL16,/* type */
685 1, /* size (0 = byte, 1 = short, 2 = long) */
687 FALSE, /* pc_relative */
689 complain_overflow_signed, /* complain_on_overflow */
690 0, /* special_function */
691 "SECREL16", /* name */
692 TRUE, /* partial_inplace */
693 0xffff, /* src_mask */
694 0xffff, /* dst_mask */
695 TRUE), /* pcrel_offset */
697 /* IMAGE_REL_PPC_REFHI 0x0010 */
699 HOWTO (IMAGE_REL_PPC_REFHI, /* type */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
703 FALSE, /* pc_relative */
705 complain_overflow_signed, /* complain_on_overflow */
706 ppc_refhi_reloc, /* special_function */
708 TRUE, /* partial_inplace */
709 0xffffffff, /* src_mask */
710 0xffffffff, /* dst_mask */
711 FALSE), /* pcrel_offset */
713 /* IMAGE_REL_PPC_REFLO 0x0011 */
715 HOWTO (IMAGE_REL_PPC_REFLO, /* type */
717 1, /* size (0 = byte, 1 = short, 2 = long) */
719 FALSE, /* pc_relative */
721 complain_overflow_signed, /* complain_on_overflow */
722 ppc_refhi_reloc, /* special_function */
724 TRUE, /* partial_inplace */
725 0xffffffff, /* src_mask */
726 0xffffffff, /* dst_mask */
727 FALSE), /* pcrel_offset */
729 /* IMAGE_REL_PPC_PAIR 0x0012 */
731 HOWTO (IMAGE_REL_PPC_PAIR, /* type */
733 1, /* size (0 = byte, 1 = short, 2 = long) */
735 FALSE, /* pc_relative */
737 complain_overflow_signed, /* complain_on_overflow */
738 ppc_pair_reloc, /* special_function */
740 TRUE, /* partial_inplace */
741 0xffffffff, /* src_mask */
742 0xffffffff, /* dst_mask */
743 FALSE), /* pcrel_offset */
745 /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */
746 /* 16-bit offset from TOC base, without causing a definition */
748 HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */
750 1, /* size (0 = byte, 1 = short, 2 = long) */
752 FALSE, /* pc_relative */
754 complain_overflow_dont, /* complain_on_overflow */
755 0, /* special_function */
756 "TOCREL16, TOCDEFN", /* name */
757 FALSE, /* partial_inplace */
758 0xffff, /* src_mask */
759 0xffff, /* dst_mask */
760 FALSE), /* pcrel_offset */
764 /* Some really cheezy macros that can be turned on to test stderr :-) */
773 fprintf (stderr,_("Unimplemented Relocation -- %s\n"),x); \
777 #define DUMP_RELOC(n,r) \
779 fprintf (stderr,"%s sym %d, addr %d, addend %d\n", \
780 n, (*(r->sym_ptr_ptr))->name, \
781 r->address, r->addend); \
784 /* Given a reloc name, n, and a pointer to an internal_reloc,
785 dump out interesting information on the contents
787 #define n_name _n._n_name
788 #define n_zeroes _n._n_n._n_zeroes
789 #define n_offset _n._n_n._n_offset */
791 #define DUMP_RELOC2(n,r) \
793 fprintf (stderr,"%s sym %d, r_vaddr %d %s\n", \
794 n, r->r_symndx, r->r_vaddr, \
795 (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \
801 #define DUMP_RELOC(n,r)
802 #define DUMP_RELOC2(n,r)
805 /* TOC construction and management routines. */
807 /* This file is compiled twice, and these variables are defined in one
808 of the compilations. FIXME: This is confusing and weird. Also,
809 BFD should not use global variables. */
810 extern bfd * bfd_of_toc_owner;
811 extern long int global_toc_size;
812 extern long int import_table_size;
813 extern long int first_thunk_address;
814 extern long int thunk_size;
832 struct list_ele *next;
834 enum ref_category cat;
839 extern struct list_ele *head;
840 extern struct list_ele *tail;
842 static void record_toc
843 PARAMS ((asection *, bfd_signed_vma, enum ref_category, const char *));
846 record_toc (toc_section, our_toc_offset, cat, name)
847 asection *toc_section;
848 bfd_signed_vma our_toc_offset;
849 enum ref_category cat;
852 /* Add this entry to our toc addr-offset-name list. */
853 bfd_size_type amt = sizeof (struct list_ele);
854 struct list_ele *t = (struct list_ele *) bfd_malloc (amt);
859 t->offset = our_toc_offset;
862 t->addr = toc_section->output_offset + our_toc_offset;
876 #ifdef COFF_IMAGE_WITH_PE
878 static bfd_boolean ppc_record_toc_entry
879 PARAMS ((bfd *, struct bfd_link_info *, asection *, int, enum toc_type));
880 static void ppc_mark_symbol_as_glue
881 PARAMS ((bfd *, int, struct internal_reloc *));
883 /* Record a toc offset against a symbol. */
885 ppc_record_toc_entry(abfd, info, sec, sym, toc_kind)
887 struct bfd_link_info *info ATTRIBUTE_UNUSED;
888 asection *sec ATTRIBUTE_UNUSED;
890 enum toc_type toc_kind ATTRIBUTE_UNUSED;
892 struct ppc_coff_link_hash_entry *h;
899 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
907 local_syms = obj_coff_local_toc_table(abfd);
914 /* allocate a table */
915 amt = (bfd_size_type) obj_raw_syment_count (abfd) * sizeof (int);
916 local_syms = (int *) bfd_zalloc (abfd, amt);
919 obj_coff_local_toc_table (abfd) = local_syms;
921 for (i = 0; i < obj_raw_syment_count (abfd); ++i)
923 SET_UNALLOCATED (local_syms[i]);
927 if (IS_UNALLOCATED(local_syms[sym]))
929 local_syms[sym] = global_toc_size;
930 global_toc_size += 4;
932 /* The size must fit in a 16bit displacment. */
933 if (global_toc_size > 65535)
935 (*_bfd_error_handler) (_("TOC overflow"));
936 bfd_set_error (bfd_error_file_too_big);
943 name = h->root.root.root.string;
945 /* Check to see if there's a toc slot allocated. If not, do it
946 here. It will be used in relocate_section. */
947 if (IS_UNALLOCATED(h->toc_offset))
949 h->toc_offset = global_toc_size;
950 global_toc_size += 4;
952 /* The size must fit in a 16bit displacment. */
953 if (global_toc_size >= 65535)
955 (*_bfd_error_handler) (_("TOC overflow"));
956 bfd_set_error (bfd_error_file_too_big);
965 /* Record a toc offset against a symbol. */
967 ppc_mark_symbol_as_glue(abfd, sym, rel)
970 struct internal_reloc *rel;
972 struct ppc_coff_link_hash_entry *h;
974 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
978 h->symbol_is_glue = 1;
979 h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr);
984 #endif /* COFF_IMAGE_WITH_PE */
986 /* Return TRUE if this relocation should
987 appear in the output .reloc section. */
989 static bfd_boolean in_reloc_p(abfd, howto)
990 bfd * abfd ATTRIBUTE_UNUSED;
991 reloc_howto_type *howto;
994 (! howto->pc_relative)
995 && (howto->type != IMAGE_REL_PPC_ADDR32NB)
996 && (howto->type != IMAGE_REL_PPC_TOCREL16)
997 && (howto->type != IMAGE_REL_PPC_IMGLUE)
998 && (howto->type != IMAGE_REL_PPC_IFGLUE)
999 && (howto->type != IMAGE_REL_PPC_SECREL)
1000 && (howto->type != IMAGE_REL_PPC_SECTION)
1001 && (howto->type != IMAGE_REL_PPC_SECREL16)
1002 && (howto->type != IMAGE_REL_PPC_REFHI)
1003 && (howto->type != IMAGE_REL_PPC_REFLO)
1004 && (howto->type != IMAGE_REL_PPC_PAIR)
1005 && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ;
1010 /* This function is in charge of performing all the ppc PE relocations
1011 Don't yet know if we want to do this this particular way ... (krk). */
1012 /* FIXME: (it is not yet enabled). */
1014 static bfd_reloc_status_type
1015 pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
1018 arelent *reloc_entry;
1021 asection *input_section;
1023 char **error_message;
1025 /* The consth relocation comes in two parts, we have to remember
1026 the state between calls, in these variables. */
1027 static bfd_boolean part1_consth_active = FALSE;
1028 static unsigned long part1_consth_value;
1030 unsigned long sym_value;
1031 unsigned short r_type;
1032 unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/
1034 r_type = reloc_entry->howto->type;
1038 /* Partial linking - do nothing. */
1039 reloc_entry->address += input_section->output_offset;
1040 return bfd_reloc_ok;
1043 if (symbol_in != NULL
1044 && bfd_is_und_section (symbol_in->section))
1046 /* Keep the state machine happy in case we're called again. */
1047 if (r_type == IMAGE_REL_PPC_REFHI)
1049 part1_consth_active = TRUE;
1050 part1_consth_value = 0;
1052 return(bfd_reloc_undefined);
1055 if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR))
1057 part1_consth_active = FALSE;
1058 *error_message = (char *) _("Missing PAIR");
1059 return(bfd_reloc_dangerous);
1062 sym_value = get_symbol_value(symbol_in);
1064 return(bfd_reloc_ok);
1069 /* The reloc processing routine for the optimized COFF linker. */
1072 coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section,
1073 contents, relocs, syms, sections)
1075 struct bfd_link_info *info;
1077 asection *input_section;
1079 struct internal_reloc *relocs;
1080 struct internal_syment *syms;
1081 asection **sections;
1083 struct internal_reloc *rel;
1084 struct internal_reloc *relend;
1087 asection *toc_section = 0;
1089 reloc_howto_type *howto = 0;
1091 /* If we are performing a relocateable link, we don't need to do a
1092 thing. The caller will take care of adjusting the reloc
1093 addresses and symbol indices. */
1094 if (info->relocateable)
1101 relend = rel + input_section->reloc_count;
1102 for (; rel < relend; rel++)
1105 struct ppc_coff_link_hash_entry *h;
1106 struct internal_syment *sym;
1110 bfd_reloc_status_type rstat;
1113 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1114 unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
1116 symndx = rel->r_symndx;
1117 loc = contents + rel->r_vaddr - input_section->vma;
1119 /* FIXME: check bounds on r_type */
1120 howto = ppc_coff_howto_table + r_type;
1129 h = (struct ppc_coff_link_hash_entry *)
1130 (obj_coff_sym_hashes (input_bfd)[symndx]);
1136 sym = syms + symndx;
1139 if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0)
1141 /* An IMGLUE reloc must have a name. Something is very wrong. */
1148 /* FIXME: PAIR unsupported in the following code. */
1152 sec = bfd_abs_section_ptr;
1155 sec = sections[symndx];
1156 val = (sec->output_section->vma
1157 + sec->output_offset
1159 if (! obj_pe (output_bfd))
1167 if (h->root.root.type == bfd_link_hash_defined
1168 || h->root.root.type == bfd_link_hash_defweak)
1170 sec = h->root.root.u.def.section;
1171 val = (h->root.root.u.def.value
1172 + sec->output_section->vma
1173 + sec->output_offset);
1177 if (! ((*info->callbacks->undefined_symbol)
1178 (info, h->root.root.root.string, input_bfd, input_section,
1179 rel->r_vaddr - input_section->vma, TRUE)))
1184 rstat = bfd_reloc_ok;
1186 /* Each case must do its own relocation, setting rstat appropriately. */
1190 (*_bfd_error_handler)
1191 (_("%s: unsupported relocation type 0x%02x"),
1192 bfd_archive_filename (input_bfd), r_type);
1193 bfd_set_error (bfd_error_bad_value);
1195 case IMAGE_REL_PPC_TOCREL16:
1197 bfd_signed_vma our_toc_offset;
1200 DUMP_RELOC2(howto->name, rel);
1202 if (toc_section == 0)
1204 toc_section = bfd_get_section_by_name (bfd_of_toc_owner,
1207 if ( toc_section == NULL )
1209 /* There is no toc section. Something is very wrong. */
1214 /* Amazing bit tricks present. As we may have seen earlier, we
1215 use the 1 bit to tell us whether or not a toc offset has been
1216 allocated. Now that they've all been allocated, we will use
1217 the 1 bit to tell us if we've written this particular toc
1222 /* It is a file local symbol. */
1223 int *local_toc_table;
1226 sym = syms + symndx;
1227 name = sym->_n._n_name;
1229 local_toc_table = obj_coff_local_toc_table(input_bfd);
1230 our_toc_offset = local_toc_table[symndx];
1232 if (IS_WRITTEN(our_toc_offset))
1234 /* If it has been written out, it is marked with the
1235 1 bit. Fix up our offset, but do not write it out
1237 MAKE_ADDR_AGAIN(our_toc_offset);
1241 /* Write out the toc entry. */
1242 record_toc (toc_section, our_toc_offset, priv,
1245 bfd_put_32 (output_bfd, val,
1246 toc_section->contents + our_toc_offset);
1248 MARK_AS_WRITTEN(local_toc_table[symndx]);
1254 const char *name = h->root.root.root.string;
1255 our_toc_offset = h->toc_offset;
1257 if ((r_flags & IMAGE_REL_PPC_TOCDEFN)
1258 == IMAGE_REL_PPC_TOCDEFN )
1260 /* This is unbelievable cheese. Some knowledgable asm
1261 hacker has decided to use r2 as a base for loading
1262 a value. He/She does this by setting the tocdefn bit,
1263 and not supplying a toc definition. The behaviour is
1264 then to use the difference between the value of the
1265 symbol and the actual location of the toc as the toc
1268 In fact, what is usually happening is, because the
1269 Import Address Table is mapped immediately following
1270 the toc, some trippy library code trying for speed on
1271 dll linkage, takes advantage of that and considers
1272 the IAT to be part of the toc, thus saving a load. */
1274 our_toc_offset = val - (toc_section->output_section->vma
1275 + toc_section->output_offset);
1277 /* The size must still fit in a 16bit displacment. */
1278 if ((bfd_vma) our_toc_offset >= 65535)
1280 (*_bfd_error_handler)
1281 (_("%s: Relocation for %s of %lx exceeds Toc size limit"),
1282 bfd_archive_filename (input_bfd), name,
1283 (unsigned long) our_toc_offset);
1284 bfd_set_error (bfd_error_bad_value);
1288 record_toc (toc_section, our_toc_offset, pub,
1291 else if (IS_WRITTEN (our_toc_offset))
1293 /* If it has been written out, it is marked with the
1294 1 bit. Fix up our offset, but do not write it out
1296 MAKE_ADDR_AGAIN(our_toc_offset);
1300 record_toc(toc_section, our_toc_offset, pub,
1303 /* Write out the toc entry. */
1304 bfd_put_32 (output_bfd, val,
1305 toc_section->contents + our_toc_offset);
1307 MARK_AS_WRITTEN(h->toc_offset);
1308 /* The tricky part is that this is the address that
1309 needs a .reloc entry for it. */
1314 if (fixit && info->base_file)
1316 /* So if this is non pcrelative, and is referenced
1317 to a section or a common symbol, then it needs a reloc. */
1319 /* Relocation to a symbol in a section which
1320 isn't absolute - we output the address here
1322 bfd_vma addr = (toc_section->output_section->vma
1323 + toc_section->output_offset + our_toc_offset);
1325 if (coff_data (output_bfd)->pe)
1326 addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
1328 fwrite (&addr, 1,4, (FILE *) info->base_file);
1331 /* FIXME: this test is conservative. */
1332 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN
1333 && (bfd_vma) our_toc_offset > toc_section->_raw_size)
1335 (*_bfd_error_handler)
1336 (_("%s: Relocation exceeds allocated TOC (%lx)"),
1337 bfd_archive_filename (input_bfd),
1338 (unsigned long) toc_section->_raw_size);
1339 bfd_set_error (bfd_error_bad_value);
1343 /* Now we know the relocation for this toc reference. */
1344 relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT;
1345 rstat = _bfd_relocate_contents (howto, input_bfd, relocation, loc);
1348 case IMAGE_REL_PPC_IFGLUE:
1350 /* To solve this, we need to know whether or not the symbol
1351 appearing on the call instruction is a glue function or not.
1352 A glue function must announce itself via a IMGLUE reloc, and
1353 the reloc contains the required toc restore instruction. */
1355 const char *my_name;
1357 DUMP_RELOC2 (howto->name, rel);
1361 my_name = h->root.root.root.string;
1362 if (h->symbol_is_glue == 1)
1364 x = bfd_get_32 (input_bfd, loc);
1365 bfd_put_32 (input_bfd, (bfd_vma) h->glue_insn, loc);
1370 case IMAGE_REL_PPC_SECREL:
1371 /* Unimplemented: codeview debugging information. */
1372 /* For fast access to the header of the section
1373 containing the item. */
1375 case IMAGE_REL_PPC_SECTION:
1376 /* Unimplemented: codeview debugging information. */
1377 /* Is used to indicate that the value should be relative
1378 to the beginning of the section that contains the
1381 case IMAGE_REL_PPC_ABSOLUTE:
1383 const char *my_name;
1386 my_name = (syms+symndx)->_n._n_name;
1388 my_name = h->root.root.root.string;
1391 _("Warning: unsupported reloc %s <file %s, section %s>\n"),
1393 bfd_archive_filename(input_bfd),
1394 input_section->name);
1396 fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
1397 rel->r_symndx, my_name, (long) rel->r_vaddr,
1398 (unsigned long) rel->r_vaddr);
1401 case IMAGE_REL_PPC_IMGLUE:
1403 /* There is nothing to do now. This reloc was noted in the first
1404 pass over the relocs, and the glue instruction extracted. */
1405 const char *my_name;
1407 if (h->symbol_is_glue == 1)
1409 my_name = h->root.root.root.string;
1411 (*_bfd_error_handler)
1412 (_("%s: Out of order IMGLUE reloc for %s"),
1413 bfd_archive_filename (input_bfd), my_name);
1414 bfd_set_error (bfd_error_bad_value);
1418 case IMAGE_REL_PPC_ADDR32NB:
1420 const char *name = 0;
1422 DUMP_RELOC2 (howto->name, rel);
1424 if (strncmp(".idata$2",input_section->name,8) == 0 && first_thunk_address == 0)
1426 /* Set magic values. */
1428 struct coff_link_hash_entry *myh;
1430 myh = coff_link_hash_lookup (coff_hash_table (info),
1432 FALSE, FALSE, TRUE);
1433 first_thunk_address = myh->root.u.def.value +
1434 sec->output_section->vma +
1435 sec->output_offset -
1436 pe_data(output_bfd)->pe_opthdr.ImageBase;
1438 idata5offset = myh->root.u.def.value;
1439 myh = coff_link_hash_lookup (coff_hash_table (info),
1441 FALSE, FALSE, TRUE);
1443 thunk_size = myh->root.u.def.value - idata5offset;
1444 myh = coff_link_hash_lookup (coff_hash_table (info),
1446 FALSE, FALSE, TRUE);
1447 import_table_size = myh->root.u.def.value;
1452 /* It is a file local symbol. */
1453 sym = syms + symndx;
1454 name = sym->_n._n_name;
1460 name = h->root.root.root.string;
1461 if (strcmp (".idata$2", name) == 0)
1462 target = "__idata2_magic__";
1463 else if (strcmp (".idata$4", name) == 0)
1464 target = "__idata4_magic__";
1465 else if (strcmp (".idata$5", name) == 0)
1466 target = "__idata5_magic__";
1470 struct coff_link_hash_entry *myh;
1472 myh = coff_link_hash_lookup (coff_hash_table (info),
1474 FALSE, FALSE, TRUE);
1477 /* Missing magic cookies. Something is very wrong. */
1481 val = myh->root.u.def.value +
1482 sec->output_section->vma + sec->output_offset;
1483 if (first_thunk_address == 0)
1486 myh = coff_link_hash_lookup (coff_hash_table (info),
1488 FALSE, FALSE, TRUE);
1489 first_thunk_address = myh->root.u.def.value +
1490 sec->output_section->vma +
1491 sec->output_offset -
1492 pe_data(output_bfd)->pe_opthdr.ImageBase;
1494 idata5offset = myh->root.u.def.value;
1495 myh = coff_link_hash_lookup (coff_hash_table (info),
1497 FALSE, FALSE, TRUE);
1499 thunk_size = myh->root.u.def.value - idata5offset;
1500 myh = coff_link_hash_lookup (coff_hash_table (info),
1502 FALSE, FALSE, TRUE);
1503 import_table_size = myh->root.u.def.value;
1508 rstat = _bfd_relocate_contents (howto,
1511 pe_data (output_bfd)->pe_opthdr.ImageBase,
1516 case IMAGE_REL_PPC_REL24:
1517 DUMP_RELOC2(howto->name, rel);
1518 val -= (input_section->output_section->vma
1519 + input_section->output_offset);
1521 rstat = _bfd_relocate_contents (howto,
1526 case IMAGE_REL_PPC_ADDR16:
1527 case IMAGE_REL_PPC_ADDR24:
1528 case IMAGE_REL_PPC_ADDR32:
1529 DUMP_RELOC2(howto->name, rel);
1530 rstat = _bfd_relocate_contents (howto,
1537 if (info->base_file)
1539 /* So if this is non pcrelative, and is referenced
1540 to a section or a common symbol, then it needs a reloc. */
1541 if (sym && pe_data(output_bfd)->in_reloc_p (output_bfd, howto))
1543 /* Relocation to a symbol in a section which
1544 isn't absolute - we output the address here
1546 bfd_vma addr = rel->r_vaddr
1547 - input_section->vma
1548 + input_section->output_offset
1549 + input_section->output_section->vma;
1551 if (coff_data (output_bfd)->pe)
1552 addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
1554 fwrite (&addr, 1,4, (FILE *) info->base_file);
1564 case bfd_reloc_overflow:
1567 char buf[SYMNMLEN + 1];
1572 name = h->root.root.root.string;
1573 else if (sym == NULL)
1575 else if (sym->_n._n_n._n_zeroes == 0
1576 && sym->_n._n_n._n_offset != 0)
1577 name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
1580 strncpy (buf, sym->_n._n_name, SYMNMLEN);
1581 buf[SYMNMLEN] = '\0';
1585 if (! ((*info->callbacks->reloc_overflow)
1586 (info, name, howto->name,
1587 (bfd_vma) 0, input_bfd,
1588 input_section, rel->r_vaddr - input_section->vma)))
1597 #ifdef COFF_IMAGE_WITH_PE
1599 /* FIXME: BFD should not use global variables. This file is compiled
1600 twice, and these variables are shared. This is confusing and
1603 long int global_toc_size = 4;
1605 bfd* bfd_of_toc_owner = 0;
1607 long int import_table_size;
1608 long int first_thunk_address;
1609 long int thunk_size;
1611 struct list_ele *head;
1612 struct list_ele *tail;
1615 h1 = N_("\n\t\t\tTOC MAPPING\n\n");
1617 h2 = N_(" TOC disassembly Comments Name\n");
1619 h3 = N_(" Offset spelling (if present)\n");
1625 FILE *file = (FILE *) vfile;
1628 fprintf (file, _(h1));
1629 fprintf (file, _(h2));
1630 fprintf (file, _(h3));
1632 for (t = head; t != 0; t=t->next)
1634 const char *cat = "";
1637 cat = _("private ");
1638 else if (t->cat == pub)
1640 else if (t->cat == tocdata)
1641 cat = _("data-in-toc ");
1643 if (t->offset > global_toc_size)
1645 if (t->offset <= global_toc_size + thunk_size)
1646 cat = _("IAT reference ");
1650 _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"),
1651 global_toc_size, global_toc_size,
1652 thunk_size, thunk_size);
1653 cat = _("Out of bounds!");
1658 " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768);
1665 fprintf (file, "\n");
1669 ppc_allocate_toc_section (info)
1670 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1675 static char test_char = '1';
1677 if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */
1680 if (bfd_of_toc_owner == 0)
1681 /* No toc owner? Something is very wrong. */
1684 s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME);
1686 /* No toc section? Something is very wrong. */
1689 amt = global_toc_size;
1690 foo = (bfd_byte *) bfd_alloc (bfd_of_toc_owner, amt);
1691 memset(foo, test_char, (size_t) global_toc_size);
1693 s->_raw_size = s->_cooked_size = global_toc_size;
1700 ppc_process_before_allocation (abfd, info)
1702 struct bfd_link_info *info;
1705 struct internal_reloc *i, *rel;
1707 /* Here we have a bfd that is to be included on the link. We have a hook
1708 to do reloc rummaging, before section sizes are nailed down. */
1709 _bfd_coff_get_external_symbols (abfd);
1711 /* Rummage around all the relocs and map the toc. */
1712 sec = abfd->sections;
1717 for (; sec != 0; sec = sec->next)
1719 if (sec->reloc_count == 0)
1722 /* load the relocs */
1723 /* FIXME: there may be a storage leak here */
1724 i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0);
1729 for (rel = i; rel < i + sec->reloc_count; ++rel)
1731 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1732 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type);
1733 bfd_boolean ok = TRUE;
1735 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, rel);
1739 case IMAGE_REL_PPC_TOCREL16:
1740 /* If TOCDEFN is on, ignore as someone else has allocated the
1742 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN)
1743 ok = ppc_record_toc_entry(abfd, info, sec,
1744 rel->r_symndx, default_toc);
1748 case IMAGE_REL_PPC_IMGLUE:
1749 ppc_mark_symbol_as_glue (abfd, rel->r_symndx, rel);
1762 static bfd_reloc_status_type
1763 ppc_refhi_reloc (abfd, reloc_entry, symbol, data,
1764 input_section, output_bfd, error_message)
1765 bfd *abfd ATTRIBUTE_UNUSED;
1766 arelent *reloc_entry ATTRIBUTE_UNUSED;
1767 asymbol *symbol ATTRIBUTE_UNUSED;
1768 PTR data ATTRIBUTE_UNUSED;
1769 asection *input_section ATTRIBUTE_UNUSED;
1771 char **error_message ATTRIBUTE_UNUSED;
1774 DUMP_RELOC("REFHI",reloc_entry);
1776 if (output_bfd == (bfd *) NULL)
1777 return bfd_reloc_continue;
1779 return bfd_reloc_undefined;
1784 static bfd_reloc_status_type
1785 ppc_reflo_reloc (abfd, reloc_entry, symbol, data,
1786 input_section, output_bfd, error_message)
1788 arelent *reloc_entry;
1791 asection *input_section;
1793 char **error_message;
1796 DUMP_RELOC("REFLO",reloc_entry);
1798 if (output_bfd == (bfd *) NULL)
1799 return bfd_reloc_continue;
1801 return bfd_reloc_undefined;
1806 static bfd_reloc_status_type
1807 ppc_pair_reloc (abfd, reloc_entry, symbol, data,
1808 input_section, output_bfd, error_message)
1809 bfd *abfd ATTRIBUTE_UNUSED;
1810 arelent *reloc_entry ATTRIBUTE_UNUSED;
1811 asymbol *symbol ATTRIBUTE_UNUSED;
1812 PTR data ATTRIBUTE_UNUSED;
1813 asection *input_section ATTRIBUTE_UNUSED;
1815 char **error_message ATTRIBUTE_UNUSED;
1818 DUMP_RELOC("PAIR",reloc_entry);
1820 if (output_bfd == (bfd *) NULL)
1821 return bfd_reloc_continue;
1823 return bfd_reloc_undefined;
1826 static bfd_reloc_status_type
1827 ppc_toc16_reloc (abfd, reloc_entry, symbol, data,
1828 input_section, output_bfd, error_message)
1829 bfd *abfd ATTRIBUTE_UNUSED;
1830 arelent *reloc_entry ATTRIBUTE_UNUSED;
1831 asymbol *symbol ATTRIBUTE_UNUSED;
1832 PTR data ATTRIBUTE_UNUSED;
1833 asection *input_section ATTRIBUTE_UNUSED;
1835 char **error_message ATTRIBUTE_UNUSED;
1837 UN_IMPL ("TOCREL16");
1838 DUMP_RELOC ("TOCREL16",reloc_entry);
1840 if (output_bfd == (bfd *) NULL)
1841 return bfd_reloc_continue;
1843 return bfd_reloc_ok;
1848 /* ADDR32NB : 32 bit address relative to the virtual origin.
1849 (On the alpha, this is always a linker generated thunk)
1850 (i.e. 32bit addr relative to the image base). */
1852 static bfd_reloc_status_type
1853 ppc_addr32nb_reloc (abfd, reloc_entry, symbol, data,
1854 input_section, output_bfd, error_message)
1856 arelent *reloc_entry;
1859 asection *input_section;
1861 char **error_message;
1863 UN_IMPL("ADDR32NB");
1864 DUMP_RELOC("ADDR32NB",reloc_entry);
1866 return bfd_reloc_ok;
1871 static bfd_reloc_status_type
1872 ppc_secrel_reloc (abfd, reloc_entry, symbol, data,
1873 input_section, output_bfd, error_message)
1874 bfd *abfd ATTRIBUTE_UNUSED;
1875 arelent *reloc_entry ATTRIBUTE_UNUSED;
1876 asymbol *symbol ATTRIBUTE_UNUSED;
1877 PTR data ATTRIBUTE_UNUSED;
1878 asection *input_section ATTRIBUTE_UNUSED;
1880 char **error_message ATTRIBUTE_UNUSED;
1883 DUMP_RELOC("SECREL",reloc_entry);
1885 if (output_bfd == (bfd *) NULL)
1886 return bfd_reloc_continue;
1888 return bfd_reloc_ok;
1891 static bfd_reloc_status_type
1892 ppc_section_reloc (abfd, reloc_entry, symbol, data,
1893 input_section, output_bfd, error_message)
1894 bfd *abfd ATTRIBUTE_UNUSED;
1895 arelent *reloc_entry ATTRIBUTE_UNUSED;
1896 asymbol *symbol ATTRIBUTE_UNUSED;
1897 PTR data ATTRIBUTE_UNUSED;
1898 asection *input_section ATTRIBUTE_UNUSED;
1900 char **error_message ATTRIBUTE_UNUSED;
1903 DUMP_RELOC("SECTION",reloc_entry);
1905 if (output_bfd == (bfd *) NULL)
1906 return bfd_reloc_continue;
1908 return bfd_reloc_ok;
1911 static bfd_reloc_status_type
1912 ppc_imglue_reloc (abfd, reloc_entry, symbol, data,
1913 input_section, output_bfd, error_message)
1914 bfd *abfd ATTRIBUTE_UNUSED;
1915 arelent *reloc_entry ATTRIBUTE_UNUSED;
1916 asymbol *symbol ATTRIBUTE_UNUSED;
1917 PTR data ATTRIBUTE_UNUSED;
1918 asection *input_section ATTRIBUTE_UNUSED;
1920 char **error_message ATTRIBUTE_UNUSED;
1923 DUMP_RELOC("IMGLUE",reloc_entry);
1925 if (output_bfd == (bfd *) NULL)
1926 return bfd_reloc_continue;
1928 return bfd_reloc_ok;
1931 #define MAX_RELOC_INDEX \
1932 (sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]) - 1)
1934 /* FIXME: There is a possiblity that when we read in a reloc from a file,
1935 that there are some bits encoded in the upper portion of the
1936 type field. Not yet implemented. */
1937 static void ppc_coff_rtype2howto PARAMS ((arelent *, struct internal_reloc *));
1940 ppc_coff_rtype2howto (relent, internal)
1942 struct internal_reloc *internal;
1944 /* We can encode one of three things in the type field, aside from the
1946 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
1947 value, rather than an addition value
1948 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
1949 the branch is expected to be taken or not.
1950 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
1951 For now, we just strip this stuff to find the type, and ignore it other
1953 reloc_howto_type *howto;
1954 unsigned short r_type = EXTRACT_TYPE (internal->r_type);
1955 unsigned short r_flags = EXTRACT_FLAGS(internal->r_type);
1956 unsigned short junk = EXTRACT_JUNK (internal->r_type);
1958 /* The masking process only slices off the bottom byte for r_type. */
1959 if ( r_type > MAX_RELOC_INDEX )
1962 /* Check for absolute crap. */
1968 case IMAGE_REL_PPC_ADDR16:
1969 case IMAGE_REL_PPC_REL24:
1970 case IMAGE_REL_PPC_ADDR24:
1971 case IMAGE_REL_PPC_ADDR32:
1972 case IMAGE_REL_PPC_IFGLUE:
1973 case IMAGE_REL_PPC_ADDR32NB:
1974 case IMAGE_REL_PPC_SECTION:
1975 case IMAGE_REL_PPC_SECREL:
1976 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1977 howto = ppc_coff_howto_table + r_type;
1979 case IMAGE_REL_PPC_IMGLUE:
1980 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1981 howto = ppc_coff_howto_table + r_type;
1983 case IMAGE_REL_PPC_TOCREL16:
1984 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1985 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
1986 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
1988 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
1992 _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"),
1993 ppc_coff_howto_table[r_type].name,
1995 howto = ppc_coff_howto_table + r_type;
1999 relent->howto = howto;
2002 static reloc_howto_type *
2003 coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
2004 bfd *abfd ATTRIBUTE_UNUSED;
2006 struct internal_reloc *rel;
2007 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
2008 struct internal_syment *sym ATTRIBUTE_UNUSED;
2011 reloc_howto_type *howto;
2013 /* We can encode one of three things in the type field, aside from the
2015 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
2016 value, rather than an addition value
2017 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
2018 the branch is expected to be taken or not.
2019 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
2020 For now, we just strip this stuff to find the type, and ignore it other
2023 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
2024 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type);
2025 unsigned short junk = EXTRACT_JUNK (rel->r_type);
2027 /* The masking process only slices off the bottom byte for r_type. */
2028 if (r_type > MAX_RELOC_INDEX)
2031 /* Check for absolute crap. */
2037 case IMAGE_REL_PPC_ADDR32NB:
2038 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2039 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
2040 howto = ppc_coff_howto_table + r_type;
2042 case IMAGE_REL_PPC_TOCREL16:
2043 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2044 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
2045 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
2047 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
2049 case IMAGE_REL_PPC_ADDR16:
2050 case IMAGE_REL_PPC_REL24:
2051 case IMAGE_REL_PPC_ADDR24:
2052 case IMAGE_REL_PPC_ADDR32:
2053 case IMAGE_REL_PPC_IFGLUE:
2054 case IMAGE_REL_PPC_SECTION:
2055 case IMAGE_REL_PPC_SECREL:
2056 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2057 howto = ppc_coff_howto_table + r_type;
2059 case IMAGE_REL_PPC_IMGLUE:
2060 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2061 howto = ppc_coff_howto_table + r_type;
2065 _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"),
2066 ppc_coff_howto_table[r_type].name,
2068 howto = ppc_coff_howto_table + r_type;
2075 /* A cheesy little macro to make the code a little more readable. */
2076 #define HOW2MAP(bfd_rtype,ppc_rtype) \
2077 case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype]
2079 static reloc_howto_type *ppc_coff_reloc_type_lookup
2080 PARAMS ((bfd *, bfd_reloc_code_real_type));
2082 static reloc_howto_type *
2083 ppc_coff_reloc_type_lookup (abfd, code)
2084 bfd *abfd ATTRIBUTE_UNUSED;
2085 bfd_reloc_code_real_type code;
2089 HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE);
2090 HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE);
2091 HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16);
2092 HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24);
2093 HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24);
2094 HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16);
2095 HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN);
2096 HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32);
2097 HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB);
2105 /* Tailor coffcode.h -- macro heaven. */
2107 #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst)
2109 /* We use the special COFF backend linker, with our own special touch. */
2111 #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup
2112 #define coff_rtype_to_howto coff_ppc_rtype_to_howto
2113 #define coff_relocate_section coff_ppc_relocate_section
2114 #define coff_bfd_final_link ppc_bfd_coff_final_link
2116 #ifndef COFF_IMAGE_WITH_PE
2117 /* FIXME: This no longer works. */
2119 #define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook
2123 #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;}
2125 #define COFF_PAGE_SIZE 0x1000
2127 /* FIXME: This controls some code that used to be in peicode.h and is
2128 now in peigen.c. It will not control the code in peigen.c. If
2129 anybody wants to get this working, you will need to fix that. */
2130 #define POWERPC_LE_PE
2132 #define COFF_SECTION_ALIGNMENT_ENTRIES \
2133 { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \
2134 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2135 { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \
2136 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2137 { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \
2138 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2139 { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \
2140 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2141 { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \
2142 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \
2143 { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \
2144 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }
2146 #include "coffcode.h"
2148 #ifndef COFF_IMAGE_WITH_PE
2149 /* FIXME: This no longer works. */
2152 What we're trying to do here is allocate a toc section (early), and attach
2153 it to the last bfd to be processed. This avoids the problem of having a toc
2154 written out before all files have been processed. This code allocates
2155 a toc section for every file, and records the last one seen. There are
2156 at least two problems with this approach:
2157 1. We allocate whole bunches of toc sections that are ignored, but at
2158 at least we will not allocate a toc if no .toc is present.
2159 2. It's not clear to me that being the last bfd read necessarily means
2160 that you are the last bfd closed.
2161 3. Doing it on a "swap in" hook depends on when the "swap in" is called,
2162 and how often, etc. It's not clear to me that there isn't a hole here. */
2163 static void ppc_coff_swap_sym_in_hook PARAMS ((bfd *, PTR, PTR));
2166 ppc_coff_swap_sym_in_hook (abfd, ext1, in1)
2168 PTR ext1 ATTRIBUTE_UNUSED;
2171 struct internal_syment * in = (struct internal_syment *)in1;
2173 if (bfd_of_toc_owner != 0) /* We already have a toc, so go home. */
2176 if (strcmp (in->_n._n_name, ".toc") == 0)
2179 register asection *s;
2181 s = bfd_get_section_by_name (abfd, TOC_SECTION_NAME);
2185 flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ;
2187 s = bfd_make_section (abfd, TOC_SECTION_NAME);
2190 || !bfd_set_section_flags (abfd, s, flags)
2191 || !bfd_set_section_alignment (abfd, s, 2))
2192 /* FIXME: set appropriate bfd error. */
2195 /* Save the bfd for later allocation. */
2196 bfd_of_toc_owner = abfd;
2204 #ifndef COFF_IMAGE_WITH_PE
2206 static bfd_boolean ppc_do_last PARAMS ((bfd *));
2207 static bfd *ppc_get_last PARAMS ((void));
2213 if (abfd == bfd_of_toc_owner)
2222 return bfd_of_toc_owner;
2225 /* This piece of machinery exists only to guarantee that the bfd that holds
2226 the toc section is written last.
2228 This does depend on bfd_make_section attaching a new section to the
2229 end of the section list for the bfd.
2231 This is otherwise intended to be functionally the same as
2232 cofflink.c:_bfd_coff_final_link(). It is specifically different only
2233 where the POWERPC_LE_PE macro modifies the code. It is left in as a
2234 precise form of comment. krk@cygnus.com */
2236 /* Do the final link step. */
2239 ppc_bfd_coff_final_link (abfd, info)
2241 struct bfd_link_info *info;
2243 bfd_size_type symesz;
2244 struct coff_final_link_info finfo;
2245 bfd_boolean debug_merge_allocated;
2247 struct bfd_link_order *p;
2248 bfd_size_type max_sym_count;
2249 bfd_size_type max_lineno_count;
2250 bfd_size_type max_reloc_count;
2251 bfd_size_type max_output_reloc_count;
2252 bfd_size_type max_contents_size;
2253 file_ptr rel_filepos;
2255 file_ptr line_filepos;
2256 unsigned int linesz;
2258 bfd_byte *external_relocs = NULL;
2259 char strbuf[STRING_SIZE_SIZE];
2262 symesz = bfd_coff_symesz (abfd);
2265 finfo.output_bfd = abfd;
2266 finfo.strtab = NULL;
2267 finfo.section_info = NULL;
2268 finfo.last_file_index = -1;
2269 finfo.last_bf_index = -1;
2270 finfo.internal_syms = NULL;
2271 finfo.sec_ptrs = NULL;
2272 finfo.sym_indices = NULL;
2273 finfo.outsyms = NULL;
2274 finfo.linenos = NULL;
2275 finfo.contents = NULL;
2276 finfo.external_relocs = NULL;
2277 finfo.internal_relocs = NULL;
2278 debug_merge_allocated = FALSE;
2280 coff_data (abfd)->link_info = info;
2282 finfo.strtab = _bfd_stringtab_init ();
2283 if (finfo.strtab == NULL)
2286 if (! coff_debug_merge_hash_table_init (&finfo.debug_merge))
2288 debug_merge_allocated = TRUE;
2290 /* Compute the file positions for all the sections. */
2291 if (! abfd->output_has_begun)
2293 if (! bfd_coff_compute_section_file_positions (abfd))
2297 /* Count the line numbers and relocation entries required for the
2298 output file. Set the file positions for the relocs. */
2299 rel_filepos = obj_relocbase (abfd);
2300 relsz = bfd_coff_relsz (abfd);
2301 max_contents_size = 0;
2302 max_lineno_count = 0;
2303 max_reloc_count = 0;
2305 for (o = abfd->sections; o != NULL; o = o->next)
2308 o->lineno_count = 0;
2310 for (p = o->link_order_head; p != NULL; p = p->next)
2312 if (p->type == bfd_indirect_link_order)
2316 sec = p->u.indirect.section;
2318 /* Mark all sections which are to be included in the
2319 link. This will normally be every section. We need
2320 to do this so that we can identify any sections which
2321 the linker has decided to not include. */
2322 sec->linker_mark = TRUE;
2324 if (info->strip == strip_none
2325 || info->strip == strip_some)
2326 o->lineno_count += sec->lineno_count;
2328 if (info->relocateable)
2329 o->reloc_count += sec->reloc_count;
2331 if (sec->_raw_size > max_contents_size)
2332 max_contents_size = sec->_raw_size;
2333 if (sec->lineno_count > max_lineno_count)
2334 max_lineno_count = sec->lineno_count;
2335 if (sec->reloc_count > max_reloc_count)
2336 max_reloc_count = sec->reloc_count;
2338 else if (info->relocateable
2339 && (p->type == bfd_section_reloc_link_order
2340 || p->type == bfd_symbol_reloc_link_order))
2343 if (o->reloc_count == 0)
2347 o->flags |= SEC_RELOC;
2348 o->rel_filepos = rel_filepos;
2349 rel_filepos += o->reloc_count * relsz;
2353 /* If doing a relocateable link, allocate space for the pointers we
2355 if (info->relocateable)
2359 /* We use section_count + 1, rather than section_count, because
2360 the target_index fields are 1 based. */
2361 amt = abfd->section_count + 1;
2362 amt *= sizeof (struct coff_link_section_info);
2363 finfo.section_info = (struct coff_link_section_info *) bfd_malloc (amt);
2365 if (finfo.section_info == NULL)
2368 for (i = 0; i <= abfd->section_count; i++)
2370 finfo.section_info[i].relocs = NULL;
2371 finfo.section_info[i].rel_hashes = NULL;
2375 /* We now know the size of the relocs, so we can determine the file
2376 positions of the line numbers. */
2377 line_filepos = rel_filepos;
2378 linesz = bfd_coff_linesz (abfd);
2379 max_output_reloc_count = 0;
2381 for (o = abfd->sections; o != NULL; o = o->next)
2383 if (o->lineno_count == 0)
2384 o->line_filepos = 0;
2387 o->line_filepos = line_filepos;
2388 line_filepos += o->lineno_count * linesz;
2391 if (o->reloc_count != 0)
2393 /* We don't know the indices of global symbols until we have
2394 written out all the local symbols. For each section in
2395 the output file, we keep an array of pointers to hash
2396 table entries. Each entry in the array corresponds to a
2397 reloc. When we find a reloc against a global symbol, we
2398 set the corresponding entry in this array so that we can
2399 fix up the symbol index after we have written out all the
2402 Because of this problem, we also keep the relocs in
2403 memory until the end of the link. This wastes memory,
2404 but only when doing a relocateable link, which is not the
2406 BFD_ASSERT (info->relocateable);
2407 amt = o->reloc_count;
2408 amt *= sizeof (struct internal_reloc);
2409 finfo.section_info[o->target_index].relocs =
2410 (struct internal_reloc *) bfd_malloc (amt);
2411 amt = o->reloc_count;
2412 amt *= sizeof (struct coff_link_hash_entry *);
2413 finfo.section_info[o->target_index].rel_hashes =
2414 (struct coff_link_hash_entry **) bfd_malloc (amt);
2415 if (finfo.section_info[o->target_index].relocs == NULL
2416 || finfo.section_info[o->target_index].rel_hashes == NULL)
2419 if (o->reloc_count > max_output_reloc_count)
2420 max_output_reloc_count = o->reloc_count;
2423 /* Reset the reloc and lineno counts, so that we can use them to
2424 count the number of entries we have output so far. */
2426 o->lineno_count = 0;
2429 obj_sym_filepos (abfd) = line_filepos;
2431 /* Figure out the largest number of symbols in an input BFD. Take
2432 the opportunity to clear the output_has_begun fields of all the
2435 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
2439 sub->output_has_begun = FALSE;
2440 sz = obj_raw_syment_count (sub);
2441 if (sz > max_sym_count)
2445 /* Allocate some buffers used while linking. */
2446 amt = max_sym_count * sizeof (struct internal_syment);
2447 finfo.internal_syms = (struct internal_syment *) bfd_malloc (amt);
2448 amt = max_sym_count * sizeof (asection *);
2449 finfo.sec_ptrs = (asection **) bfd_malloc (amt);
2450 amt = max_sym_count * sizeof (long);
2451 finfo.sym_indices = (long *) bfd_malloc (amt);
2452 amt = (max_sym_count + 1) * symesz;
2453 finfo.outsyms = (bfd_byte *) bfd_malloc (amt);
2454 amt = max_lineno_count * bfd_coff_linesz (abfd);
2455 finfo.linenos = (bfd_byte *) bfd_malloc (amt);
2456 finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
2457 finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
2458 if (! info->relocateable)
2460 amt = max_reloc_count * sizeof (struct internal_reloc);
2461 finfo.internal_relocs = (struct internal_reloc *) bfd_malloc (amt);
2463 if ((finfo.internal_syms == NULL && max_sym_count > 0)
2464 || (finfo.sec_ptrs == NULL && max_sym_count > 0)
2465 || (finfo.sym_indices == NULL && max_sym_count > 0)
2466 || finfo.outsyms == NULL
2467 || (finfo.linenos == NULL && max_lineno_count > 0)
2468 || (finfo.contents == NULL && max_contents_size > 0)
2469 || (finfo.external_relocs == NULL && max_reloc_count > 0)
2470 || (! info->relocateable
2471 && finfo.internal_relocs == NULL
2472 && max_reloc_count > 0))
2475 /* We now know the position of everything in the file, except that
2476 we don't know the size of the symbol table and therefore we don't
2477 know where the string table starts. We just build the string
2478 table in memory as we go along. We process all the relocations
2479 for a single input file at once. */
2480 obj_raw_syment_count (abfd) = 0;
2482 if (coff_backend_info (abfd)->_bfd_coff_start_final_link)
2484 if (! bfd_coff_start_final_link (abfd, info))
2488 for (o = abfd->sections; o != NULL; o = o->next)
2490 for (p = o->link_order_head; p != NULL; p = p->next)
2492 if (p->type == bfd_indirect_link_order
2493 && (bfd_get_flavour (p->u.indirect.section->owner)
2494 == bfd_target_coff_flavour))
2496 sub = p->u.indirect.section->owner;
2497 #ifdef POWERPC_LE_PE
2498 if (! sub->output_has_begun && !ppc_do_last(sub))
2500 if (! sub->output_has_begun)
2503 if (! _bfd_coff_link_input_bfd (&finfo, sub))
2505 sub->output_has_begun = TRUE;
2508 else if (p->type == bfd_section_reloc_link_order
2509 || p->type == bfd_symbol_reloc_link_order)
2511 if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p))
2516 if (! _bfd_default_link_order (abfd, info, o, p))
2522 #ifdef POWERPC_LE_PE
2524 bfd* last_one = ppc_get_last();
2527 if (! _bfd_coff_link_input_bfd (&finfo, last_one))
2530 last_one->output_has_begun = TRUE;
2534 /* Free up the buffers used by _bfd_coff_link_input_bfd. */
2535 coff_debug_merge_hash_table_free (&finfo.debug_merge);
2536 debug_merge_allocated = FALSE;
2538 if (finfo.internal_syms != NULL)
2540 free (finfo.internal_syms);
2541 finfo.internal_syms = NULL;
2543 if (finfo.sec_ptrs != NULL)
2545 free (finfo.sec_ptrs);
2546 finfo.sec_ptrs = NULL;
2548 if (finfo.sym_indices != NULL)
2550 free (finfo.sym_indices);
2551 finfo.sym_indices = NULL;
2553 if (finfo.linenos != NULL)
2555 free (finfo.linenos);
2556 finfo.linenos = NULL;
2558 if (finfo.contents != NULL)
2560 free (finfo.contents);
2561 finfo.contents = NULL;
2563 if (finfo.external_relocs != NULL)
2565 free (finfo.external_relocs);
2566 finfo.external_relocs = NULL;
2568 if (finfo.internal_relocs != NULL)
2570 free (finfo.internal_relocs);
2571 finfo.internal_relocs = NULL;
2574 /* The value of the last C_FILE symbol is supposed to be the symbol
2575 index of the first external symbol. Write it out again if
2577 if (finfo.last_file_index != -1
2578 && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd))
2582 finfo.last_file.n_value = obj_raw_syment_count (abfd);
2583 bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
2584 (PTR) finfo.outsyms);
2585 pos = obj_sym_filepos (abfd) + finfo.last_file_index * symesz;
2586 if (bfd_seek (abfd, pos, SEEK_SET) != 0
2587 || bfd_bwrite (finfo.outsyms, symesz, abfd) != symesz)
2591 /* Write out the global symbols. */
2592 finfo.failed = FALSE;
2593 coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym,
2598 /* The outsyms buffer is used by _bfd_coff_write_global_sym. */
2599 if (finfo.outsyms != NULL)
2601 free (finfo.outsyms);
2602 finfo.outsyms = NULL;
2605 if (info->relocateable)
2607 /* Now that we have written out all the global symbols, we know
2608 the symbol indices to use for relocs against them, and we can
2609 finally write out the relocs. */
2610 amt = max_output_reloc_count * relsz;
2611 external_relocs = (bfd_byte *) bfd_malloc (amt);
2612 if (external_relocs == NULL)
2615 for (o = abfd->sections; o != NULL; o = o->next)
2617 struct internal_reloc *irel;
2618 struct internal_reloc *irelend;
2619 struct coff_link_hash_entry **rel_hash;
2622 if (o->reloc_count == 0)
2625 irel = finfo.section_info[o->target_index].relocs;
2626 irelend = irel + o->reloc_count;
2627 rel_hash = finfo.section_info[o->target_index].rel_hashes;
2628 erel = external_relocs;
2629 for (; irel < irelend; irel++, rel_hash++, erel += relsz)
2631 if (*rel_hash != NULL)
2633 BFD_ASSERT ((*rel_hash)->indx >= 0);
2634 irel->r_symndx = (*rel_hash)->indx;
2636 bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
2639 amt = relsz * o->reloc_count;
2640 if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
2641 || bfd_bwrite ((PTR) external_relocs, amt, abfd) != amt)
2645 free (external_relocs);
2646 external_relocs = NULL;
2649 /* Free up the section information. */
2650 if (finfo.section_info != NULL)
2654 for (i = 0; i < abfd->section_count; i++)
2656 if (finfo.section_info[i].relocs != NULL)
2657 free (finfo.section_info[i].relocs);
2658 if (finfo.section_info[i].rel_hashes != NULL)
2659 free (finfo.section_info[i].rel_hashes);
2661 free (finfo.section_info);
2662 finfo.section_info = NULL;
2665 /* If we have optimized stabs strings, output them. */
2666 if (coff_hash_table (info)->stab_info != NULL)
2668 if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info))
2672 /* Write out the string table. */
2673 if (obj_raw_syment_count (abfd) != 0)
2677 pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz;
2678 if (bfd_seek (abfd, pos, SEEK_SET) != 0)
2681 #if STRING_SIZE_SIZE == 4
2683 _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
2686 #error Change H_PUT_32 above
2689 if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE, abfd)
2690 != STRING_SIZE_SIZE)
2693 if (! _bfd_stringtab_emit (abfd, finfo.strtab))
2697 _bfd_stringtab_free (finfo.strtab);
2699 /* Setting bfd_get_symcount to 0 will cause write_object_contents to
2700 not try to write out the symbols. */
2701 bfd_get_symcount (abfd) = 0;
2706 if (debug_merge_allocated)
2707 coff_debug_merge_hash_table_free (&finfo.debug_merge);
2708 if (finfo.strtab != NULL)
2709 _bfd_stringtab_free (finfo.strtab);
2710 if (finfo.section_info != NULL)
2714 for (i = 0; i < abfd->section_count; i++)
2716 if (finfo.section_info[i].relocs != NULL)
2717 free (finfo.section_info[i].relocs);
2718 if (finfo.section_info[i].rel_hashes != NULL)
2719 free (finfo.section_info[i].rel_hashes);
2721 free (finfo.section_info);
2723 if (finfo.internal_syms != NULL)
2724 free (finfo.internal_syms);
2725 if (finfo.sec_ptrs != NULL)
2726 free (finfo.sec_ptrs);
2727 if (finfo.sym_indices != NULL)
2728 free (finfo.sym_indices);
2729 if (finfo.outsyms != NULL)
2730 free (finfo.outsyms);
2731 if (finfo.linenos != NULL)
2732 free (finfo.linenos);
2733 if (finfo.contents != NULL)
2734 free (finfo.contents);
2735 if (finfo.external_relocs != NULL)
2736 free (finfo.external_relocs);
2737 if (finfo.internal_relocs != NULL)
2738 free (finfo.internal_relocs);
2739 if (external_relocs != NULL)
2740 free (external_relocs);
2745 /* Forward declaration for use by alternative_target field. */
2746 #ifdef TARGET_BIG_SYM
2747 extern const bfd_target TARGET_BIG_SYM;
2750 /* The transfer vectors that lead the outside world to all of the above. */
2752 #ifdef TARGET_LITTLE_SYM
2753 const bfd_target TARGET_LITTLE_SYM =
2755 TARGET_LITTLE_NAME, /* name or coff-arm-little */
2756 bfd_target_coff_flavour,
2757 BFD_ENDIAN_LITTLE, /* data byte order is little */
2758 BFD_ENDIAN_LITTLE, /* header byte order is little */
2760 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2761 HAS_LINENO | HAS_DEBUG |
2762 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2764 #ifndef COFF_WITH_PE
2765 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2767 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2768 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2771 0, /* leading char */
2772 '/', /* ar_pad_char */
2773 15, /* ar_max_namelen??? FIXMEmgo */
2775 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2776 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2777 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
2779 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2780 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2781 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
2783 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2784 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2785 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2787 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2788 _bfd_write_archive_contents, bfd_false},
2790 BFD_JUMP_TABLE_GENERIC (coff),
2791 BFD_JUMP_TABLE_COPY (coff),
2792 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2793 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2794 BFD_JUMP_TABLE_SYMBOLS (coff),
2795 BFD_JUMP_TABLE_RELOCS (coff),
2796 BFD_JUMP_TABLE_WRITE (coff),
2797 BFD_JUMP_TABLE_LINK (coff),
2798 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2800 /* Alternative_target. */
2801 #ifdef TARGET_BIG_SYM
2811 #ifdef TARGET_BIG_SYM
2812 const bfd_target TARGET_BIG_SYM =
2815 bfd_target_coff_flavour,
2816 BFD_ENDIAN_BIG, /* data byte order is big */
2817 BFD_ENDIAN_BIG, /* header byte order is big */
2819 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2820 HAS_LINENO | HAS_DEBUG |
2821 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2823 #ifndef COFF_WITH_PE
2824 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2826 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2827 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2830 0, /* leading char */
2831 '/', /* ar_pad_char */
2832 15, /* ar_max_namelen??? FIXMEmgo */
2834 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2835 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2836 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
2838 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2839 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2840 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
2842 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2843 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2844 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2846 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2847 _bfd_write_archive_contents, bfd_false},
2849 BFD_JUMP_TABLE_GENERIC (coff),
2850 BFD_JUMP_TABLE_COPY (coff),
2851 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2852 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2853 BFD_JUMP_TABLE_SYMBOLS (coff),
2854 BFD_JUMP_TABLE_RELOCS (coff),
2855 BFD_JUMP_TABLE_WRITE (coff),
2856 BFD_JUMP_TABLE_LINK (coff),
2857 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2859 /* Alternative_target. */
2860 #ifdef TARGET_LITTLE_SYM
2861 & TARGET_LITTLE_SYM,