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.
42 #include "coff/powerpc.h"
43 #include "coff/internal.h"
51 #define BADMAG(x) PPCBADMAG(x)
55 /* This file is compiled more than once, but we only compile the
56 final_link routine once. */
57 extern boolean ppc_bfd_coff_final_link
58 PARAMS ((bfd *, struct bfd_link_info *));
59 extern void dump_toc PARAMS ((PTR));
61 /* The toc is a set of bfd_vma fields. We use the fact that valid */
62 /* addresses are even (i.e. the bit representing "1" is off) to allow */
63 /* us to encode a little extra information in the field */
64 /* - Unallocated addresses are intialized to 1. */
65 /* - Allocated addresses are even numbers. */
66 /* The first time we actually write a reference to the toc in the bfd, */
67 /* we want to record that fact in a fixup file (if it is asked for), so */
68 /* we keep track of whether or not an address has been written by marking */
69 /* the low order bit with a "1" upon writing */
71 #define SET_UNALLOCATED(x) ((x) = 1)
72 #define IS_UNALLOCATED(x) ((x) == 1)
74 #define IS_WRITTEN(x) ((x) & 1)
75 #define MARK_AS_WRITTEN(x) ((x) |= 1)
76 #define MAKE_ADDR_AGAIN(x) ((x) &= ~1)
78 /* Turn on this check if you suspect something amiss in the hash tables */
81 /* Need a 7 char string for an eye catcher */
84 #define HASH_CHECK_DCL char eye_catcher[8];
85 #define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE)
86 #define HASH_CHECK(addr) \
87 if (strcmp(addr->eye_catcher, EYE) != 0) \
90 _("File %s, line %d, Hash check failure, bad eye %8s\n"), \
91 __FILE__, __LINE__, addr->eye_catcher); \
97 #define HASH_CHECK_DCL
98 #define HASH_CHECK_INIT(ret)
99 #define HASH_CHECK(addr)
103 /* In order not to add an int to every hash table item for every coff
104 linker, we define our own hash table, derived from the coff one */
106 /* PE linker hash table entries. */
108 struct ppc_coff_link_hash_entry
110 struct coff_link_hash_entry root; /* First entry, as required */
112 /* As we wonder around the relocs, we'll keep the assigned toc_offset
114 bfd_vma toc_offset; /* Our addition, as required */
116 unsigned long int glue_insn;
121 /* PE linker hash table. */
123 struct ppc_coff_link_hash_table
125 struct coff_link_hash_table root; /* First entry, as required */
128 static struct bfd_hash_entry *ppc_coff_link_hash_newfunc
129 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
131 static boolean ppc_coff_link_hash_table_init
132 PARAMS ((struct ppc_coff_link_hash_table *, bfd *,
133 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
134 struct bfd_hash_table *,
136 static struct bfd_link_hash_table *ppc_coff_link_hash_table_create
138 static boolean coff_ppc_relocate_section
139 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
140 struct internal_reloc *, struct internal_syment *, asection **));
141 static reloc_howto_type *coff_ppc_rtype_to_howto
142 PARAMS ((bfd *, asection *, struct internal_reloc *,
143 struct coff_link_hash_entry *, struct internal_syment *,
146 /* Routine to create an entry in the link hash table. */
148 static struct bfd_hash_entry *
149 ppc_coff_link_hash_newfunc (entry, table, string)
150 struct bfd_hash_entry *entry;
151 struct bfd_hash_table *table;
154 struct ppc_coff_link_hash_entry *ret =
155 (struct ppc_coff_link_hash_entry *) entry;
157 /* Allocate the structure if it has not already been allocated by a
159 if (ret == (struct ppc_coff_link_hash_entry *) NULL)
160 ret = (struct ppc_coff_link_hash_entry *)
161 bfd_hash_allocate (table,
162 sizeof (struct ppc_coff_link_hash_entry));
164 if (ret == (struct ppc_coff_link_hash_entry *) NULL)
167 /* Call the allocation method of the superclass. */
168 ret = ((struct ppc_coff_link_hash_entry *)
169 _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret,
174 /* Initialize the local fields. */
175 SET_UNALLOCATED(ret->toc_offset);
176 ret->symbol_is_glue = 0;
179 HASH_CHECK_INIT(ret);
182 return (struct bfd_hash_entry *) ret;
185 /* Initialize a PE linker hash table. */
188 ppc_coff_link_hash_table_init (table, abfd, newfunc)
189 struct ppc_coff_link_hash_table *table;
191 struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
192 struct bfd_hash_table *,
195 return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc);
198 /* Create a PE linker hash table. */
200 static struct bfd_link_hash_table *
201 ppc_coff_link_hash_table_create (abfd)
204 struct ppc_coff_link_hash_table *ret;
206 ret = ((struct ppc_coff_link_hash_table *)
207 bfd_alloc (abfd, sizeof (struct ppc_coff_link_hash_table)));
210 if (! ppc_coff_link_hash_table_init (ret, abfd,
211 ppc_coff_link_hash_newfunc))
213 bfd_release (abfd, ret);
214 return (struct bfd_link_hash_table *) NULL;
216 return &ret->root.root;
219 /* Now, tailor coffcode.h to use our hash stuff */
221 #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create
223 /* The nt loader points the toc register to &toc + 32768, in order to */
224 /* use the complete range of a 16-bit displacement. We have to adjust */
225 /* for this when we fix up loads displaced off the toc reg. */
226 #define TOC_LOAD_ADJUSTMENT (-32768)
227 #define TOC_SECTION_NAME ".private.toc"
229 /* The main body of code is in coffcode.h. */
231 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
233 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
234 from smaller values. Start with zero, widen, *then* decrement. */
235 #define MINUS_ONE (((bfd_vma)0) - 1)
237 /* these should definitely go in a header file somewhere... */
240 #define IMAGE_REL_PPC_ABSOLUTE 0x0000
243 #define IMAGE_REL_PPC_ADDR64 0x0001
246 #define IMAGE_REL_PPC_ADDR32 0x0002
248 /* 26-bit address, shifted left 2 (branch absolute) */
249 #define IMAGE_REL_PPC_ADDR24 0x0003
252 #define IMAGE_REL_PPC_ADDR16 0x0004
254 /* 16-bit address, shifted left 2 (load doubleword) */
255 #define IMAGE_REL_PPC_ADDR14 0x0005
257 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
258 #define IMAGE_REL_PPC_REL24 0x0006
260 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
261 #define IMAGE_REL_PPC_REL14 0x0007
263 /* 16-bit offset from TOC base */
264 #define IMAGE_REL_PPC_TOCREL16 0x0008
266 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
267 #define IMAGE_REL_PPC_TOCREL14 0x0009
269 /* 32-bit addr w/o image base */
270 #define IMAGE_REL_PPC_ADDR32NB 0x000A
272 /* va of containing section (as in an image sectionhdr) */
273 #define IMAGE_REL_PPC_SECREL 0x000B
275 /* sectionheader number */
276 #define IMAGE_REL_PPC_SECTION 0x000C
278 /* substitute TOC restore instruction iff symbol is glue code */
279 #define IMAGE_REL_PPC_IFGLUE 0x000D
281 /* symbol is glue code; virtual address is TOC restore instruction */
282 #define IMAGE_REL_PPC_IMGLUE 0x000E
284 /* va of containing section (limited to 16 bits) */
285 #define IMAGE_REL_PPC_SECREL16 0x000F
287 /* stuff to handle immediate data when the number of bits in the */
288 /* data is greater than the number of bits in the immediate field */
289 /* We need to do (usually) 32 bit arithmetic on 16 bit chunks */
290 #define IMAGE_REL_PPC_REFHI 0x0010
291 #define IMAGE_REL_PPC_REFLO 0x0011
292 #define IMAGE_REL_PPC_PAIR 0x0012
294 /* This is essentially the same as tocrel16, with TOCDEFN assumed */
295 #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013
297 /* Flag bits in IMAGE_RELOCATION.TYPE */
299 /* subtract reloc value rather than adding it */
300 #define IMAGE_REL_PPC_NEG 0x0100
302 /* fix branch prediction bit to predict branch taken */
303 #define IMAGE_REL_PPC_BRTAKEN 0x0200
305 /* fix branch prediction bit to predict branch not taken */
306 #define IMAGE_REL_PPC_BRNTAKEN 0x0400
308 /* toc slot defined in file (or, data in toc) */
309 #define IMAGE_REL_PPC_TOCDEFN 0x0800
311 /* masks to isolate above values in IMAGE_RELOCATION.Type */
312 #define IMAGE_REL_PPC_TYPEMASK 0x00FF
313 #define IMAGE_REL_PPC_FLAGMASK 0x0F00
315 #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK)
316 #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK)
317 #define EXTRACT_JUNK(x) \
318 ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK))
320 /* static helper functions to make relocation work */
321 /* (Work In Progress) */
323 static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd,
331 static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd,
339 static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd,
347 static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd,
356 static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd,
364 static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd,
372 static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd,
380 static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd,
388 static boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto));
390 /* FIXME: It'll take a while to get through all of these. I only need a few to
391 get us started, so those I'll make sure work. Those marked FIXME are either
392 completely unverified or have a specific unknown marked in the comment */
394 /*---------------------------------------------------------------------------*/
396 /* Relocation entries for Windows/NT on PowerPC. */
398 /* From the document "" we find the following listed as used relocs: */
400 /* ABSOLUTE : The noop */
401 /* ADDR[64|32|16] : fields that hold addresses in data fields or the */
402 /* 16 bit displacement field on a load/store. */
403 /* ADDR[24|14] : fields that hold addresses in branch and cond */
404 /* branches. These represent [26|16] bit addresses. */
405 /* The low order 2 bits are preserved. */
406 /* REL[24|14] : branches relative to the Instruction Address */
407 /* register. These represent [26|16] bit addresses, */
408 /* as before. The instruction field will be zero, and */
409 /* the address of the SYM will be inserted at link time. */
410 /* TOCREL16 : 16 bit displacement field referring to a slot in */
412 /* TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. */
413 /* ADDR32NB : 32 bit address relative to the virtual origin. */
414 /* (On the alpha, this is always a linker generated thunk)*/
415 /* (i.e. 32bit addr relative to the image base) */
416 /* SECREL : The value is relative to the start of the section */
417 /* containing the symbol. */
418 /* SECTION : access to the header containing the item. Supports the */
419 /* codeview debugger. */
421 /* In particular, note that the document does not indicate that the */
422 /* relocations listed in the header file are used. */
426 /*---------------------------------------------------------------------------*/
428 static reloc_howto_type ppc_coff_howto_table[] =
430 /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */
432 HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */
434 0, /* size (0 = byte, 1 = short, 2 = long) */
436 false, /* pc_relative */
438 complain_overflow_dont, /* dont complain_on_overflow */
439 0, /* special_function */
440 "ABSOLUTE", /* name */
441 false, /* partial_inplace */
444 false), /* pcrel_offset */
446 /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */
448 HOWTO(IMAGE_REL_PPC_ADDR64, /* type */
450 3, /* size (0 = byte, 1 = short, 2 = long) */
452 false, /* pc_relative */
454 complain_overflow_bitfield, /* complain_on_overflow */
455 0, /* special_function */
457 true, /* partial_inplace */
458 MINUS_ONE, /* src_mask */
459 MINUS_ONE, /* dst_mask */
460 false), /* pcrel_offset */
462 /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */
464 HOWTO (IMAGE_REL_PPC_ADDR32, /* type */
466 2, /* size (0 = byte, 1 = short, 2 = long) */
468 false, /* pc_relative */
470 complain_overflow_bitfield, /* complain_on_overflow */
471 0, /* special_function */
473 true, /* partial_inplace */
474 0xffffffff, /* src_mask */
475 0xffffffff, /* dst_mask */
476 false), /* pcrel_offset */
478 /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */
479 /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */
480 /* Of course, That's the IBM approved bit numbering, which is not what */
481 /* anyone else uses.... The li field is in bit 2 thru 25 */
483 HOWTO (IMAGE_REL_PPC_ADDR24, /* type */
485 2, /* size (0 = byte, 1 = short, 2 = long) */
487 false, /* pc_relative */
489 complain_overflow_bitfield, /* complain_on_overflow */
490 0, /* special_function */
492 true, /* partial_inplace */
493 0x07fffffc, /* src_mask */
494 0x07fffffc, /* dst_mask */
495 false), /* pcrel_offset */
497 /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */
499 HOWTO (IMAGE_REL_PPC_ADDR16, /* type */
501 1, /* size (0 = byte, 1 = short, 2 = long) */
503 false, /* pc_relative */
505 complain_overflow_signed, /* complain_on_overflow */
506 0, /* special_function */
508 true, /* partial_inplace */
509 0xffff, /* src_mask */
510 0xffff, /* dst_mask */
511 false), /* pcrel_offset */
513 /* IMAGE_REL_PPC_ADDR14 0x0005 */
514 /* 16-bit address, shifted left 2 (load doubleword) */
515 /* FIXME: the mask is likely wrong, and the bit position may be as well */
517 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
519 1, /* size (0 = byte, 1 = short, 2 = long) */
521 false, /* pc_relative */
523 complain_overflow_signed, /* complain_on_overflow */
524 0, /* special_function */
526 true, /* partial_inplace */
527 0xffff, /* src_mask */
528 0xffff, /* dst_mask */
529 false), /* pcrel_offset */
531 /* IMAGE_REL_PPC_REL24 0x0006 */
532 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
534 HOWTO (IMAGE_REL_PPC_REL24, /* type */
536 2, /* size (0 = byte, 1 = short, 2 = long) */
538 true, /* pc_relative */
540 complain_overflow_signed, /* complain_on_overflow */
541 0, /* special_function */
543 true, /* partial_inplace */
544 0x3fffffc, /* src_mask */
545 0x3fffffc, /* dst_mask */
546 false), /* pcrel_offset */
548 /* IMAGE_REL_PPC_REL14 0x0007 */
549 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
550 /* FIXME: the mask is likely wrong, and the bit position may be as well */
551 /* FIXME: how does it know how far to shift? */
553 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
555 1, /* size (0 = byte, 1 = short, 2 = long) */
557 false, /* pc_relative */
559 complain_overflow_signed, /* complain_on_overflow */
560 0, /* special_function */
562 true, /* partial_inplace */
563 0xffff, /* src_mask */
564 0xffff, /* dst_mask */
565 true), /* pcrel_offset */
567 /* IMAGE_REL_PPC_TOCREL16 0x0008 */
568 /* 16-bit offset from TOC base */
570 HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */
572 1, /* size (0 = byte, 1 = short, 2 = long) */
574 false, /* pc_relative */
576 complain_overflow_dont, /* complain_on_overflow */
577 ppc_toc16_reloc, /* special_function */
578 "TOCREL16", /* name */
579 false, /* partial_inplace */
580 0xffff, /* src_mask */
581 0xffff, /* dst_mask */
582 false), /* pcrel_offset */
584 /* IMAGE_REL_PPC_TOCREL14 0x0009 */
585 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
587 HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */
589 1, /* size (0 = byte, 1 = short, 2 = long) */
591 false, /* pc_relative */
593 complain_overflow_signed, /* complain_on_overflow */
594 0, /* special_function */
595 "TOCREL14", /* name */
596 false, /* partial_inplace */
597 0xffff, /* src_mask */
598 0xffff, /* dst_mask */
599 false), /* pcrel_offset */
601 /* IMAGE_REL_PPC_ADDR32NB 0x000A */
602 /* 32-bit addr w/ image base */
604 HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */
606 2, /* size (0 = byte, 1 = short, 2 = long) */
608 false, /* pc_relative */
610 complain_overflow_signed, /* complain_on_overflow */
611 0, /* special_function */
612 "ADDR32NB", /* name */
613 true, /* partial_inplace */
614 0xffffffff, /* src_mask */
615 0xffffffff, /* dst_mask */
616 false), /* pcrel_offset */
618 /* IMAGE_REL_PPC_SECREL 0x000B */
619 /* va of containing section (as in an image sectionhdr) */
621 HOWTO (IMAGE_REL_PPC_SECREL,/* type */
623 2, /* size (0 = byte, 1 = short, 2 = long) */
625 false, /* pc_relative */
627 complain_overflow_signed, /* complain_on_overflow */
628 ppc_secrel_reloc, /* special_function */
630 true, /* partial_inplace */
631 0xffffffff, /* src_mask */
632 0xffffffff, /* dst_mask */
633 true), /* pcrel_offset */
635 /* IMAGE_REL_PPC_SECTION 0x000C */
636 /* sectionheader number */
638 HOWTO (IMAGE_REL_PPC_SECTION,/* type */
640 2, /* size (0 = byte, 1 = short, 2 = long) */
642 false, /* pc_relative */
644 complain_overflow_signed, /* complain_on_overflow */
645 ppc_section_reloc, /* special_function */
646 "SECTION", /* name */
647 true, /* partial_inplace */
648 0xffffffff, /* src_mask */
649 0xffffffff, /* dst_mask */
650 true), /* pcrel_offset */
652 /* IMAGE_REL_PPC_IFGLUE 0x000D */
653 /* substitute TOC restore instruction iff symbol is glue code */
655 HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */
657 2, /* size (0 = byte, 1 = short, 2 = long) */
659 false, /* pc_relative */
661 complain_overflow_signed, /* complain_on_overflow */
662 0, /* special_function */
664 true, /* partial_inplace */
665 0xffffffff, /* src_mask */
666 0xffffffff, /* dst_mask */
667 false), /* pcrel_offset */
669 /* IMAGE_REL_PPC_IMGLUE 0x000E */
670 /* symbol is glue code; virtual address is TOC restore instruction */
672 HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */
674 2, /* size (0 = byte, 1 = short, 2 = long) */
676 false, /* pc_relative */
678 complain_overflow_dont, /* complain_on_overflow */
679 ppc_imglue_reloc, /* special_function */
681 false, /* partial_inplace */
682 0xffffffff, /* src_mask */
683 0xffffffff, /* dst_mask */
684 false), /* pcrel_offset */
686 /* IMAGE_REL_PPC_SECREL16 0x000F */
687 /* va of containing section (limited to 16 bits) */
689 HOWTO (IMAGE_REL_PPC_SECREL16,/* type */
691 1, /* size (0 = byte, 1 = short, 2 = long) */
693 false, /* pc_relative */
695 complain_overflow_signed, /* complain_on_overflow */
696 0, /* special_function */
697 "SECREL16", /* name */
698 true, /* partial_inplace */
699 0xffff, /* src_mask */
700 0xffff, /* dst_mask */
701 true), /* pcrel_offset */
703 /* IMAGE_REL_PPC_REFHI 0x0010 */
705 HOWTO (IMAGE_REL_PPC_REFHI, /* type */
707 1, /* size (0 = byte, 1 = short, 2 = long) */
709 false, /* pc_relative */
711 complain_overflow_signed, /* complain_on_overflow */
712 ppc_refhi_reloc, /* special_function */
714 true, /* partial_inplace */
715 0xffffffff, /* src_mask */
716 0xffffffff, /* dst_mask */
717 false), /* pcrel_offset */
719 /* IMAGE_REL_PPC_REFLO 0x0011 */
721 HOWTO (IMAGE_REL_PPC_REFLO, /* type */
723 1, /* size (0 = byte, 1 = short, 2 = long) */
725 false, /* pc_relative */
727 complain_overflow_signed, /* complain_on_overflow */
728 ppc_refhi_reloc, /* special_function */
730 true, /* partial_inplace */
731 0xffffffff, /* src_mask */
732 0xffffffff, /* dst_mask */
733 false), /* pcrel_offset */
735 /* IMAGE_REL_PPC_PAIR 0x0012 */
737 HOWTO (IMAGE_REL_PPC_PAIR, /* type */
739 1, /* size (0 = byte, 1 = short, 2 = long) */
741 false, /* pc_relative */
743 complain_overflow_signed, /* complain_on_overflow */
744 ppc_pair_reloc, /* special_function */
746 true, /* partial_inplace */
747 0xffffffff, /* src_mask */
748 0xffffffff, /* dst_mask */
749 false), /* pcrel_offset */
751 /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */
752 /* 16-bit offset from TOC base, without causing a definition */
754 HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */
756 1, /* size (0 = byte, 1 = short, 2 = long) */
758 false, /* pc_relative */
760 complain_overflow_dont, /* complain_on_overflow */
761 0, /* special_function */
762 "TOCREL16, TOCDEFN", /* name */
763 false, /* partial_inplace */
764 0xffff, /* src_mask */
765 0xffff, /* dst_mask */
766 false), /* pcrel_offset */
770 /* Some really cheezy macros that can be turned on to test stderr :-) */
779 fprintf (stderr,_("Unimplemented Relocation -- %s\n"),x); \
783 #define DUMP_RELOC(n,r) \
785 fprintf (stderr,"%s sym %d, addr %d, addend %d\n", \
786 n, (*(r->sym_ptr_ptr))->name, \
787 r->address, r->addend); \
790 /* Given a reloc name, n, and a pointer to an internal_reloc,
791 dump out interesting information on the contents
793 #define n_name _n._n_name
794 #define n_zeroes _n._n_n._n_zeroes
795 #define n_offset _n._n_n._n_offset
799 #define DUMP_RELOC2(n,r) \
801 fprintf (stderr,"%s sym %d, r_vaddr %d %s\n", \
802 n, r->r_symndx, r->r_vaddr,\
803 (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \
809 #define DUMP_RELOC(n,r)
810 #define DUMP_RELOC2(n,r)
813 /* toc construction and management routines */
815 /* This file is compiled twice, and these variables are defined in one
816 of the compilations. FIXME: This is confusing and weird. Also,
817 BFD should not use global variables. */
818 extern bfd* bfd_of_toc_owner;
819 extern long int global_toc_size;
821 extern long int import_table_size;
822 extern long int first_thunk_address;
823 extern long int thunk_size;
841 struct list_ele *next;
843 enum ref_category cat;
848 extern struct list_ele *head;
849 extern struct list_ele *tail;
851 static void record_toc
852 PARAMS ((asection *, int, enum ref_category, const char *));
855 record_toc (toc_section, our_toc_offset, cat, name)
856 asection *toc_section;
858 enum ref_category cat;
861 /* add this entry to our toc addr-offset-name list */
863 t = (struct list_ele *) bfd_malloc (sizeof (struct list_ele));
867 t->offset = our_toc_offset;
870 t->addr = toc_section->output_offset + our_toc_offset;
884 #ifdef COFF_IMAGE_WITH_PE
886 static boolean ppc_record_toc_entry
887 PARAMS ((bfd *, struct bfd_link_info *, asection *, int, enum toc_type));
888 static void ppc_mark_symbol_as_glue
889 PARAMS ((bfd *, int, struct internal_reloc *));
891 /* record a toc offset against a symbol */
893 ppc_record_toc_entry(abfd, info, sec, sym, toc_kind)
895 struct bfd_link_info *info ATTRIBUTE_UNUSED;
896 asection *sec ATTRIBUTE_UNUSED;
898 enum toc_type toc_kind ATTRIBUTE_UNUSED;
900 struct ppc_coff_link_hash_entry *h;
907 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
915 local_syms = obj_coff_local_toc_table(abfd);
919 /* allocate a table */
921 (int *) bfd_zalloc (abfd,
922 obj_raw_syment_count(abfd) * sizeof (int));
925 obj_coff_local_toc_table(abfd) = local_syms;
926 for (i = 0; i < obj_raw_syment_count(abfd); ++i)
928 SET_UNALLOCATED(local_syms[i]);
932 if (IS_UNALLOCATED(local_syms[sym]))
934 local_syms[sym] = global_toc_size;
935 global_toc_size += 4;
937 /* The size must fit in a 16bit displacment */
938 if (global_toc_size > 65535)
940 (*_bfd_error_handler) (_("TOC overflow"));
941 bfd_set_error (bfd_error_file_too_big);
948 name = h->root.root.root.string;
950 /* check to see if there's a toc slot allocated. If not, do it
951 here. It will be used in relocate_section */
952 if (IS_UNALLOCATED(h->toc_offset))
954 h->toc_offset = global_toc_size;
955 global_toc_size += 4;
957 /* The size must fit in a 16bit displacment */
958 if (global_toc_size >= 65535)
960 (*_bfd_error_handler) (_("TOC overflow"));
961 bfd_set_error (bfd_error_file_too_big);
970 /* record a toc offset against a symbol */
972 ppc_mark_symbol_as_glue(abfd, sym, rel)
975 struct internal_reloc *rel;
977 struct ppc_coff_link_hash_entry *h;
979 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
983 h->symbol_is_glue = 1;
984 h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr);
989 #endif /* COFF_IMAGE_WITH_PE */
991 /* Return true if this relocation should
992 appear in the output .reloc section. */
994 static boolean in_reloc_p(abfd, howto)
995 bfd * abfd ATTRIBUTE_UNUSED;
996 reloc_howto_type *howto;
999 (! howto->pc_relative)
1000 && (howto->type != IMAGE_REL_PPC_ADDR32NB)
1001 && (howto->type != IMAGE_REL_PPC_TOCREL16)
1002 && (howto->type != IMAGE_REL_PPC_IMGLUE)
1003 && (howto->type != IMAGE_REL_PPC_IFGLUE)
1004 && (howto->type != IMAGE_REL_PPC_SECREL)
1005 && (howto->type != IMAGE_REL_PPC_SECTION)
1006 && (howto->type != IMAGE_REL_PPC_SECREL16)
1007 && (howto->type != IMAGE_REL_PPC_REFHI)
1008 && (howto->type != IMAGE_REL_PPC_REFLO)
1009 && (howto->type != IMAGE_REL_PPC_PAIR)
1010 && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ;
1015 /* this function is in charge of performing all the ppc PE relocations */
1016 /* Don't yet know if we want to do this this particular way ... (krk) */
1017 /* FIXME: (it is not yet enabled) */
1019 static bfd_reloc_status_type
1020 pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
1023 arelent *reloc_entry;
1026 asection *input_section;
1028 char **error_message;
1030 /* the consth relocation comes in two parts, we have to remember
1031 the state between calls, in these variables */
1032 static boolean part1_consth_active = false;
1033 static unsigned long part1_consth_value;
1035 unsigned long sym_value;
1036 unsigned short r_type;
1037 unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/
1039 r_type = reloc_entry->howto->type;
1043 /* Partial linking - do nothing */
1044 reloc_entry->address += input_section->output_offset;
1045 return bfd_reloc_ok;
1048 if (symbol_in != NULL
1049 && bfd_is_und_section (symbol_in->section))
1051 /* Keep the state machine happy in case we're called again */
1052 if (r_type == IMAGE_REL_PPC_REFHI)
1054 part1_consth_active = true;
1055 part1_consth_value = 0;
1057 return(bfd_reloc_undefined);
1060 if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR))
1062 part1_consth_active = false;
1063 *error_message = (char *) _("Missing PAIR");
1064 return(bfd_reloc_dangerous);
1067 sym_value = get_symbol_value(symbol_in);
1069 return(bfd_reloc_ok);
1074 /* The reloc processing routine for the optimized COFF linker. */
1077 coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section,
1078 contents, relocs, syms, sections)
1080 struct bfd_link_info *info;
1082 asection *input_section;
1084 struct internal_reloc *relocs;
1085 struct internal_syment *syms;
1086 asection **sections;
1088 struct internal_reloc *rel;
1089 struct internal_reloc *relend;
1092 asection *toc_section = 0;
1094 reloc_howto_type *howto = 0;
1096 /* If we are performing a relocateable link, we don't need to do a
1097 thing. The caller will take care of adjusting the reloc
1098 addresses and symbol indices. */
1099 if (info->relocateable)
1106 relend = rel + input_section->reloc_count;
1107 for (; rel < relend; rel++)
1110 struct ppc_coff_link_hash_entry *h;
1111 struct internal_syment *sym;
1115 bfd_reloc_status_type rstat;
1118 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1119 unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
1121 symndx = rel->r_symndx;
1122 loc = contents + rel->r_vaddr - input_section->vma;
1124 /* FIXME: check bounds on r_type */
1125 howto = ppc_coff_howto_table + r_type;
1134 h = (struct ppc_coff_link_hash_entry *)
1135 (obj_coff_sym_hashes (input_bfd)[symndx]);
1141 sym = syms + symndx;
1144 if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0)
1146 /* An IMGLUE reloc must have a name. Something is very wrong. */
1153 /* FIXME: PAIR unsupported in the following code */
1157 sec = bfd_abs_section_ptr;
1160 sec = sections[symndx];
1161 val = (sec->output_section->vma
1162 + sec->output_offset
1164 if (! obj_pe (output_bfd))
1172 if (h->root.root.type == bfd_link_hash_defined
1173 || h->root.root.type == bfd_link_hash_defweak)
1175 sec = h->root.root.u.def.section;
1176 val = (h->root.root.u.def.value
1177 + sec->output_section->vma
1178 + sec->output_offset);
1182 if (! ((*info->callbacks->undefined_symbol)
1183 (info, h->root.root.root.string, input_bfd, input_section,
1184 rel->r_vaddr - input_section->vma, true)))
1189 rstat = bfd_reloc_ok;
1191 /* Each case must do its own relocation, setting rstat appropriately */
1195 (*_bfd_error_handler)
1196 (_("%s: unsupported relocation type 0x%02x"),
1197 bfd_get_filename (input_bfd), r_type);
1198 bfd_set_error (bfd_error_bad_value);
1200 case IMAGE_REL_PPC_TOCREL16:
1202 bfd_vma our_toc_offset;
1205 DUMP_RELOC2(howto->name, rel);
1207 if (toc_section == 0)
1209 toc_section = bfd_get_section_by_name (bfd_of_toc_owner,
1212 if ( toc_section == NULL )
1214 /* There is no toc section. Something is very wrong. */
1220 * Amazing bit tricks present. As we may have seen earlier, we
1221 * use the 1 bit to tell us whether or not a toc offset has been
1222 * allocated. Now that they've all been allocated, we will use
1223 * the 1 bit to tell us if we've written this particular toc
1228 { /* it is a file local symbol */
1229 int *local_toc_table;
1232 sym = syms + symndx;
1233 name = sym->_n._n_name;
1235 local_toc_table = obj_coff_local_toc_table(input_bfd);
1236 our_toc_offset = local_toc_table[symndx];
1238 if (IS_WRITTEN(our_toc_offset))
1240 /* if it has been written out, it is marked with the
1241 1 bit. Fix up our offset, but do not write it out
1244 MAKE_ADDR_AGAIN(our_toc_offset);
1248 /* write out the toc entry */
1249 record_toc(toc_section,
1254 bfd_put_32 (output_bfd,
1256 toc_section->contents + our_toc_offset);
1258 MARK_AS_WRITTEN(local_toc_table[symndx]);
1264 const char *name = h->root.root.root.string;
1265 our_toc_offset = h->toc_offset;
1267 if ((r_flags & IMAGE_REL_PPC_TOCDEFN)
1268 == IMAGE_REL_PPC_TOCDEFN )
1270 /* This is unbelievable cheese. Some knowledgable asm
1271 hacker has decided to use r2 as a base for loading
1272 a value. He/She does this by setting the tocdefn bit,
1273 and not supplying a toc definition. The behaviour is
1274 then to use the difference between the value of the
1275 symbol and the actual location of the toc as the toc
1278 In fact, what is usually happening is, because the
1279 Import Address Table is mapped immediately following
1280 the toc, some trippy library code trying for speed on
1281 dll linkage, takes advantage of that and considers
1282 the IAT to be part of the toc, thus saving a load.
1285 our_toc_offset = val -
1286 (toc_section->output_section->vma +
1287 toc_section->output_offset);
1289 /* The size must still fit in a 16bit displacment */
1290 if (our_toc_offset >= 65535)
1292 (*_bfd_error_handler)
1293 (_("%s: Relocation for %s of %x exceeds Toc size limit"),
1294 bfd_get_filename (input_bfd), name, our_toc_offset);
1295 bfd_set_error (bfd_error_bad_value);
1299 record_toc(toc_section, our_toc_offset, pub, strdup(name));
1301 else if (IS_WRITTEN(our_toc_offset))
1303 /* if it has been written out, it is marked with the
1304 1 bit. Fix up our offset, but do not write it out
1307 MAKE_ADDR_AGAIN(our_toc_offset);
1311 record_toc(toc_section, our_toc_offset, pub, strdup(name));
1313 /* write out the toc entry */
1314 bfd_put_32 (output_bfd,
1316 toc_section->contents + our_toc_offset);
1318 MARK_AS_WRITTEN(h->toc_offset);
1319 /* The tricky part is that this is the address that */
1320 /* needs a .reloc entry for it */
1325 if (fixit && info->base_file)
1327 /* So if this is non pcrelative, and is referenced
1328 to a section or a common symbol, then it needs a reloc */
1330 /* relocation to a symbol in a section which
1331 isn't absolute - we output the address here
1334 bfd_vma addr = toc_section->output_section->vma
1335 + toc_section->output_offset + our_toc_offset;
1337 if (coff_data(output_bfd)->pe)
1338 addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
1340 fwrite (&addr, 1,4, (FILE *) info->base_file);
1343 /* FIXME: this test is conservative */
1344 if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN &&
1345 our_toc_offset > toc_section->_raw_size)
1347 (*_bfd_error_handler)
1348 (_("%s: Relocation exceeds allocated TOC (%x)"),
1349 bfd_get_filename (input_bfd),
1350 toc_section->_raw_size);
1351 bfd_set_error (bfd_error_bad_value);
1355 /* Now we know the relocation for this toc reference */
1356 relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT;
1357 rstat = _bfd_relocate_contents (howto,
1363 case IMAGE_REL_PPC_IFGLUE:
1365 /* To solve this, we need to know whether or not the symbol */
1366 /* appearing on the call instruction is a glue function or not. */
1367 /* A glue function must announce itself via a IMGLUE reloc, and */
1368 /* the reloc contains the required toc restore instruction */
1371 const char *my_name;
1372 DUMP_RELOC2(howto->name, rel);
1376 my_name = h->root.root.root.string;
1377 if (h->symbol_is_glue == 1)
1379 x = bfd_get_32 (input_bfd, loc);
1380 bfd_put_32 (input_bfd, h->glue_insn, loc);
1385 case IMAGE_REL_PPC_SECREL:
1386 /* Unimplemented: codeview debugging information */
1387 /* For fast access to the header of the section
1388 containing the item. */
1390 case IMAGE_REL_PPC_SECTION:
1391 /* Unimplemented: codeview debugging information */
1392 /* Is used to indicate that the value should be relative
1393 to the beginning of the section that contains the
1396 case IMAGE_REL_PPC_ABSOLUTE:
1398 const char *my_name;
1400 my_name = (syms+symndx)->_n._n_name;
1403 my_name = h->root.root.root.string;
1407 _("Warning: unsupported reloc %s <file %s, section %s>\n"),
1409 bfd_get_filename(input_bfd),
1410 input_section->name);
1412 fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
1413 rel->r_symndx, my_name, (long) rel->r_vaddr,
1414 (unsigned long) rel->r_vaddr);
1417 case IMAGE_REL_PPC_IMGLUE:
1419 /* There is nothing to do now. This reloc was noted in the first
1420 pass over the relocs, and the glue instruction extracted */
1421 const char *my_name;
1422 if (h->symbol_is_glue == 1)
1424 my_name = h->root.root.root.string;
1426 (*_bfd_error_handler)
1427 (_("%s: Out of order IMGLUE reloc for %s"),
1428 bfd_get_filename (input_bfd), my_name);
1429 bfd_set_error (bfd_error_bad_value);
1433 case IMAGE_REL_PPC_ADDR32NB:
1435 struct coff_link_hash_entry *myh = 0;
1436 const char *name = 0;
1437 DUMP_RELOC2(howto->name, rel);
1439 if (strncmp(".idata$2",input_section->name,8) == 0 && first_thunk_address == 0)
1441 /* set magic values */
1443 struct coff_link_hash_entry *myh = 0;
1444 myh = coff_link_hash_lookup (coff_hash_table (info),
1446 false, false, true);
1447 first_thunk_address = myh->root.u.def.value +
1448 sec->output_section->vma +
1449 sec->output_offset -
1450 pe_data(output_bfd)->pe_opthdr.ImageBase;
1452 idata5offset = myh->root.u.def.value;
1453 myh = coff_link_hash_lookup (coff_hash_table (info),
1455 false, false, true);
1457 thunk_size = myh->root.u.def.value - idata5offset;
1458 myh = coff_link_hash_lookup (coff_hash_table (info),
1460 false, false, true);
1461 import_table_size = myh->root.u.def.value;
1465 { /* it is a file local symbol */
1466 sym = syms + symndx;
1467 name = sym->_n._n_name;
1473 name = h->root.root.root.string;
1474 if (strcmp(".idata$2", name) == 0)
1475 target = "__idata2_magic__";
1476 else if (strcmp(".idata$4", name) == 0)
1477 target = "__idata4_magic__";
1478 else if (strcmp(".idata$5", name) == 0)
1479 target = "__idata5_magic__";
1485 myh = coff_link_hash_lookup (coff_hash_table (info),
1487 false, false, true);
1490 /* Missing magic cookies. Something is very wrong. */
1494 val = myh->root.u.def.value +
1495 sec->output_section->vma + sec->output_offset;
1496 if (first_thunk_address == 0)
1499 myh = coff_link_hash_lookup (coff_hash_table (info),
1501 false, false, true);
1502 first_thunk_address = myh->root.u.def.value +
1503 sec->output_section->vma +
1504 sec->output_offset -
1505 pe_data(output_bfd)->pe_opthdr.ImageBase;
1507 idata5offset = myh->root.u.def.value;
1508 myh = coff_link_hash_lookup (coff_hash_table (info),
1510 false, false, true);
1512 thunk_size = myh->root.u.def.value - idata5offset;
1513 myh = coff_link_hash_lookup (coff_hash_table (info),
1515 false, false, true);
1516 import_table_size = myh->root.u.def.value;
1521 rstat = _bfd_relocate_contents (howto,
1524 pe_data(output_bfd)->pe_opthdr.ImageBase,
1529 case IMAGE_REL_PPC_REL24:
1530 DUMP_RELOC2(howto->name, rel);
1531 val -= (input_section->output_section->vma
1532 + input_section->output_offset);
1534 rstat = _bfd_relocate_contents (howto,
1539 case IMAGE_REL_PPC_ADDR16:
1540 case IMAGE_REL_PPC_ADDR24:
1541 case IMAGE_REL_PPC_ADDR32:
1542 DUMP_RELOC2(howto->name, rel);
1543 rstat = _bfd_relocate_contents (howto,
1550 if ( info->base_file )
1552 /* So if this is non pcrelative, and is referenced
1553 to a section or a common symbol, then it needs a reloc */
1554 if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto))
1556 /* relocation to a symbol in a section which
1557 isn't absolute - we output the address here
1559 bfd_vma addr = rel->r_vaddr
1560 - input_section->vma
1561 + input_section->output_offset
1562 + input_section->output_section->vma;
1564 if (coff_data(output_bfd)->pe)
1566 addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
1568 fwrite (&addr, 1,4, (FILE *) info->base_file);
1578 case bfd_reloc_overflow:
1581 char buf[SYMNMLEN + 1];
1586 name = h->root.root.root.string;
1587 else if (sym == NULL)
1589 else if (sym->_n._n_n._n_zeroes == 0
1590 && sym->_n._n_n._n_offset != 0)
1591 name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
1594 strncpy (buf, sym->_n._n_name, SYMNMLEN);
1595 buf[SYMNMLEN] = '\0';
1599 if (! ((*info->callbacks->reloc_overflow)
1600 (info, name, howto->name,
1601 (bfd_vma) 0, input_bfd,
1602 input_section, rel->r_vaddr - input_section->vma)))
1614 #ifdef COFF_IMAGE_WITH_PE
1616 /* FIXME: BFD should not use global variables. This file is compiled
1617 twice, and these variables are shared. This is confusing and
1620 long int global_toc_size = 4;
1622 bfd* bfd_of_toc_owner = 0;
1624 long int import_table_size;
1625 long int first_thunk_address;
1626 long int thunk_size;
1628 struct list_ele *head;
1629 struct list_ele *tail;
1632 h1 = N_("\n\t\t\tTOC MAPPING\n\n");
1634 h2 = N_(" TOC disassembly Comments Name\n");
1636 h3 = N_(" Offset spelling (if present)\n");
1642 FILE *file = (FILE *) vfile;
1645 fprintf (file, _(h1));
1646 fprintf (file, _(h2));
1647 fprintf (file, _(h3));
1649 for (t = head; t != 0; t=t->next)
1651 const char *cat = "";
1654 cat = _("private ");
1655 else if (t->cat == pub)
1657 else if (t->cat == data)
1658 cat = _("data-in-toc ");
1660 if (t->offset > global_toc_size)
1662 if (t->offset <= global_toc_size + thunk_size)
1663 cat = _("IAT reference ");
1667 _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"),
1668 global_toc_size, global_toc_size, thunk_size, thunk_size);
1669 cat = _("Out of bounds!");
1674 " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768);
1681 fprintf (file, "\n");
1685 ppc_allocate_toc_section (info)
1686 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1690 static char test_char = '1';
1692 if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */
1695 if (bfd_of_toc_owner == 0)
1697 /* No toc owner? Something is very wrong. */
1701 s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME);
1704 /* No toc section? Something is very wrong. */
1708 foo = (bfd_byte *) bfd_alloc(bfd_of_toc_owner, global_toc_size);
1709 memset(foo, test_char, global_toc_size);
1711 s->_raw_size = s->_cooked_size = global_toc_size;
1718 ppc_process_before_allocation (abfd, info)
1720 struct bfd_link_info *info;
1723 struct internal_reloc *i, *rel;
1725 /* here we have a bfd that is to be included on the link. We have a hook
1726 to do reloc rummaging, before section sizes are nailed down. */
1728 _bfd_coff_get_external_symbols(abfd);
1730 /* rummage around all the relocs and map the toc */
1731 sec = abfd->sections;
1738 for (; sec != 0; sec = sec->next)
1740 if (sec->reloc_count == 0)
1743 /* load the relocs */
1744 /* FIXME: there may be a storage leak here */
1745 i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0);
1750 for (rel=i;rel<i+sec->reloc_count;++rel)
1752 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1753 unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
1756 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1760 case IMAGE_REL_PPC_TOCREL16:
1761 /* if TOCDEFN is on, ignore as someone else has allocated the
1763 if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN )
1764 ok = ppc_record_toc_entry(abfd, info, sec,
1765 rel->r_symndx, default_toc);
1769 case IMAGE_REL_PPC_IMGLUE:
1770 ppc_mark_symbol_as_glue(abfd, rel->r_symndx, rel);
1783 static bfd_reloc_status_type
1784 ppc_refhi_reloc (abfd,
1791 bfd *abfd ATTRIBUTE_UNUSED;
1792 arelent *reloc_entry ATTRIBUTE_UNUSED;
1793 asymbol *symbol ATTRIBUTE_UNUSED;
1794 PTR data ATTRIBUTE_UNUSED;
1795 asection *input_section ATTRIBUTE_UNUSED;
1797 char **error_message ATTRIBUTE_UNUSED;
1800 DUMP_RELOC("REFHI",reloc_entry);
1802 if (output_bfd == (bfd *) NULL)
1803 return bfd_reloc_continue;
1805 return bfd_reloc_undefined;
1810 static bfd_reloc_status_type
1811 ppc_reflo_reloc (abfd,
1819 arelent *reloc_entry;
1822 asection *input_section;
1824 char **error_message;
1827 DUMP_RELOC("REFLO",reloc_entry);
1829 if (output_bfd == (bfd *) NULL)
1830 return bfd_reloc_continue;
1832 return bfd_reloc_undefined;
1837 static bfd_reloc_status_type
1838 ppc_pair_reloc (abfd,
1845 bfd *abfd ATTRIBUTE_UNUSED;
1846 arelent *reloc_entry ATTRIBUTE_UNUSED;
1847 asymbol *symbol ATTRIBUTE_UNUSED;
1848 PTR data ATTRIBUTE_UNUSED;
1849 asection *input_section ATTRIBUTE_UNUSED;
1851 char **error_message ATTRIBUTE_UNUSED;
1854 DUMP_RELOC("PAIR",reloc_entry);
1856 if (output_bfd == (bfd *) NULL)
1857 return bfd_reloc_continue;
1859 return bfd_reloc_undefined;
1862 static bfd_reloc_status_type
1863 ppc_toc16_reloc (abfd,
1870 bfd *abfd ATTRIBUTE_UNUSED;
1871 arelent *reloc_entry ATTRIBUTE_UNUSED;
1872 asymbol *symbol ATTRIBUTE_UNUSED;
1873 PTR data ATTRIBUTE_UNUSED;
1874 asection *input_section ATTRIBUTE_UNUSED;
1876 char **error_message ATTRIBUTE_UNUSED;
1878 UN_IMPL("TOCREL16");
1879 DUMP_RELOC("TOCREL16",reloc_entry);
1881 if (output_bfd == (bfd *) NULL)
1883 return bfd_reloc_continue;
1886 return bfd_reloc_ok;
1891 /* ADDR32NB : 32 bit address relative to the virtual origin. */
1892 /* (On the alpha, this is always a linker generated thunk)*/
1893 /* (i.e. 32bit addr relative to the image base) */
1897 static bfd_reloc_status_type
1898 ppc_addr32nb_reloc (abfd,
1906 arelent *reloc_entry;
1909 asection *input_section;
1911 char **error_message;
1913 UN_IMPL("ADDR32NB");
1914 DUMP_RELOC("ADDR32NB",reloc_entry);
1916 return bfd_reloc_ok;
1921 static bfd_reloc_status_type
1922 ppc_secrel_reloc (abfd,
1929 bfd *abfd ATTRIBUTE_UNUSED;
1930 arelent *reloc_entry ATTRIBUTE_UNUSED;
1931 asymbol *symbol ATTRIBUTE_UNUSED;
1932 PTR data ATTRIBUTE_UNUSED;
1933 asection *input_section ATTRIBUTE_UNUSED;
1935 char **error_message ATTRIBUTE_UNUSED;
1938 DUMP_RELOC("SECREL",reloc_entry);
1940 if (output_bfd == (bfd *) NULL)
1941 return bfd_reloc_continue;
1943 return bfd_reloc_ok;
1946 static bfd_reloc_status_type
1947 ppc_section_reloc (abfd,
1954 bfd *abfd ATTRIBUTE_UNUSED;
1955 arelent *reloc_entry ATTRIBUTE_UNUSED;
1956 asymbol *symbol ATTRIBUTE_UNUSED;
1957 PTR data ATTRIBUTE_UNUSED;
1958 asection *input_section ATTRIBUTE_UNUSED;
1960 char **error_message ATTRIBUTE_UNUSED;
1963 DUMP_RELOC("SECTION",reloc_entry);
1965 if (output_bfd == (bfd *) NULL)
1966 return bfd_reloc_continue;
1968 return bfd_reloc_ok;
1971 static bfd_reloc_status_type
1972 ppc_imglue_reloc (abfd,
1979 bfd *abfd ATTRIBUTE_UNUSED;
1980 arelent *reloc_entry ATTRIBUTE_UNUSED;
1981 asymbol *symbol ATTRIBUTE_UNUSED;
1982 PTR data ATTRIBUTE_UNUSED;
1983 asection *input_section ATTRIBUTE_UNUSED;
1985 char **error_message ATTRIBUTE_UNUSED;
1988 DUMP_RELOC("IMGLUE",reloc_entry);
1990 if (output_bfd == (bfd *) NULL)
1991 return bfd_reloc_continue;
1993 return bfd_reloc_ok;
1996 #define MAX_RELOC_INDEX \
1997 (sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]) - 1)
1999 /* FIXME: There is a possiblity that when we read in a reloc from a file,
2000 that there are some bits encoded in the upper portion of the
2001 type field. Not yet implemented.
2003 static void ppc_coff_rtype2howto PARAMS ((arelent *relent,
2004 struct internal_reloc *internal));
2007 ppc_coff_rtype2howto (relent, internal)
2009 struct internal_reloc *internal;
2012 /* We can encode one of three things in the type field, aside from the
2014 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
2015 value, rather than an addition value
2016 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
2017 the branch is expected to be taken or not.
2018 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
2019 For now, we just strip this stuff to find the type, and ignore it other
2022 reloc_howto_type *howto;
2023 unsigned short r_type = EXTRACT_TYPE (internal->r_type);
2024 unsigned short r_flags = EXTRACT_FLAGS(internal->r_type);
2025 unsigned short junk = EXTRACT_JUNK (internal->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_ADDR16:
2038 case IMAGE_REL_PPC_REL24:
2039 case IMAGE_REL_PPC_ADDR24:
2040 case IMAGE_REL_PPC_ADDR32:
2041 case IMAGE_REL_PPC_IFGLUE:
2042 case IMAGE_REL_PPC_ADDR32NB:
2043 case IMAGE_REL_PPC_SECTION:
2044 case IMAGE_REL_PPC_SECREL:
2045 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
2046 howto = ppc_coff_howto_table + r_type;
2048 case IMAGE_REL_PPC_IMGLUE:
2049 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
2050 howto = ppc_coff_howto_table + r_type;
2052 case IMAGE_REL_PPC_TOCREL16:
2053 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal);
2054 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
2055 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
2057 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
2061 _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"),
2062 ppc_coff_howto_table[r_type].name,
2064 howto = ppc_coff_howto_table + r_type;
2068 relent->howto = howto;
2072 static reloc_howto_type *
2073 coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
2074 bfd *abfd ATTRIBUTE_UNUSED;
2076 struct internal_reloc *rel;
2077 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
2078 struct internal_syment *sym ATTRIBUTE_UNUSED;
2081 reloc_howto_type *howto;
2083 /* We can encode one of three things in the type field, aside from the
2085 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
2086 value, rather than an addition value
2087 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
2088 the branch is expected to be taken or not.
2089 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
2090 For now, we just strip this stuff to find the type, and ignore it other
2094 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
2095 unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
2096 unsigned short junk = EXTRACT_JUNK (rel->r_type);
2098 /* the masking process only slices off the bottom byte for r_type. */
2099 if ( r_type > MAX_RELOC_INDEX )
2102 /* check for absolute crap */
2108 case IMAGE_REL_PPC_ADDR32NB:
2109 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2110 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
2111 howto = ppc_coff_howto_table + r_type;
2113 case IMAGE_REL_PPC_TOCREL16:
2114 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2115 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
2116 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
2118 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
2120 case IMAGE_REL_PPC_ADDR16:
2121 case IMAGE_REL_PPC_REL24:
2122 case IMAGE_REL_PPC_ADDR24:
2123 case IMAGE_REL_PPC_ADDR32:
2124 case IMAGE_REL_PPC_IFGLUE:
2125 case IMAGE_REL_PPC_SECTION:
2126 case IMAGE_REL_PPC_SECREL:
2127 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2128 howto = ppc_coff_howto_table + r_type;
2130 case IMAGE_REL_PPC_IMGLUE:
2131 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
2132 howto = ppc_coff_howto_table + r_type;
2136 _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"),
2137 ppc_coff_howto_table[r_type].name,
2139 howto = ppc_coff_howto_table + r_type;
2146 /* a cheesy little macro to make the code a little more readable */
2147 #define HOW2MAP(bfd_rtype,ppc_rtype) \
2148 case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype]
2150 static reloc_howto_type *ppc_coff_reloc_type_lookup
2151 PARAMS ((bfd *, bfd_reloc_code_real_type));
2153 static reloc_howto_type *
2154 ppc_coff_reloc_type_lookup (abfd, code)
2155 bfd *abfd ATTRIBUTE_UNUSED;
2156 bfd_reloc_code_real_type code;
2160 HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE);
2161 HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE);
2162 HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16);
2163 HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24);
2164 HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24);
2165 HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16);
2166 HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN);
2167 HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32);
2168 HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB);
2177 /* Tailor coffcode.h -- macro heaven. */
2179 #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst)
2181 #ifndef COFF_IMAGE_WITH_PE
2182 static void ppc_coff_swap_sym_in_hook PARAMS ((bfd *, PTR, PTR));
2185 /* We use the special COFF backend linker, with our own special touch. */
2187 #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup
2188 #define coff_rtype_to_howto coff_ppc_rtype_to_howto
2189 #define coff_relocate_section coff_ppc_relocate_section
2190 #define coff_bfd_final_link ppc_bfd_coff_final_link
2192 #ifndef COFF_IMAGE_WITH_PE
2193 /* FIXME: This no longer works. */
2194 #define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook
2197 #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;}
2199 #define COFF_PAGE_SIZE 0x1000
2201 /* FIXME: This controls some code that used to be in peicode.h and is
2202 now in peigen.c. It will not control the code in peigen.c. If
2203 anybody wants to get this working, you will need to fix that. */
2204 #define POWERPC_LE_PE
2206 #define COFF_SECTION_ALIGNMENT_ENTRIES \
2207 { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \
2208 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2209 { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \
2210 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2211 { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \
2212 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2213 { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \
2214 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2215 { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \
2216 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \
2217 { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \
2218 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }
2220 #include "coffcode.h"
2222 #ifndef COFF_IMAGE_WITH_PE
2224 What we're trying to do here is allocate a toc section (early), and attach
2225 it to the last bfd to be processed. This avoids the problem of having a toc
2226 written out before all files have been processed. This code allocates
2227 a toc section for every file, and records the last one seen. There are
2228 at least two problems with this approach:
2229 1. We allocate whole bunches of toc sections that are ignored, but at
2230 at least we will not allocate a toc if no .toc is present.
2231 2. It's not clear to me that being the last bfd read necessarily means
2232 that you are the last bfd closed.
2233 3. Doing it on a "swap in" hook depends on when the "swap in" is called,
2234 and how often, etc. It's not clear to me that there isn't a hole here.
2238 ppc_coff_swap_sym_in_hook (abfd, ext1, in1)
2240 PTR ext1 ATTRIBUTE_UNUSED;
2243 struct internal_syment *in = (struct internal_syment *)in1;
2245 if (bfd_of_toc_owner != 0) /* we already have a toc, so go home */
2248 if (strcmp(in->_n._n_name, ".toc") == 0)
2251 register asection *s;
2253 s = bfd_get_section_by_name ( abfd , TOC_SECTION_NAME);
2259 flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ;
2261 s = bfd_make_section (abfd, TOC_SECTION_NAME);
2264 || !bfd_set_section_flags (abfd, s, flags)
2265 || !bfd_set_section_alignment (abfd, s, 2))
2267 /* FIXME: set appropriate bfd error */
2271 /* save the bfd for later allocation */
2272 bfd_of_toc_owner = abfd;
2279 #ifndef COFF_IMAGE_WITH_PE
2281 static boolean ppc_do_last PARAMS ((bfd *));
2282 static bfd *ppc_get_last PARAMS ((void));
2288 if (abfd == bfd_of_toc_owner)
2297 return bfd_of_toc_owner;
2300 /* this piece of machinery exists only to guarantee that the bfd that holds
2301 the toc section is written last.
2303 This does depend on bfd_make_section attaching a new section to the
2304 end of the section list for the bfd.
2306 This is otherwise intended to be functionally the same as
2307 cofflink.c:_bfd_coff_final_link(). It is specifically different only
2308 where the POWERPC_LE_PE macro modifies the code. It is left in as a
2309 precise form of comment. krk@cygnus.com
2312 /* Do the final link step. */
2315 ppc_bfd_coff_final_link (abfd, info)
2317 struct bfd_link_info *info;
2319 bfd_size_type symesz;
2320 struct coff_final_link_info finfo;
2321 boolean debug_merge_allocated;
2323 struct bfd_link_order *p;
2324 size_t max_sym_count;
2325 size_t max_lineno_count;
2326 size_t max_reloc_count;
2327 size_t max_output_reloc_count;
2328 size_t max_contents_size;
2329 file_ptr rel_filepos;
2331 file_ptr line_filepos;
2332 unsigned int linesz;
2334 bfd_byte *external_relocs = NULL;
2335 char strbuf[STRING_SIZE_SIZE];
2337 symesz = bfd_coff_symesz (abfd);
2340 finfo.output_bfd = abfd;
2341 finfo.strtab = NULL;
2342 finfo.section_info = NULL;
2343 finfo.last_file_index = -1;
2344 finfo.last_bf_index = -1;
2345 finfo.internal_syms = NULL;
2346 finfo.sec_ptrs = NULL;
2347 finfo.sym_indices = NULL;
2348 finfo.outsyms = NULL;
2349 finfo.linenos = NULL;
2350 finfo.contents = NULL;
2351 finfo.external_relocs = NULL;
2352 finfo.internal_relocs = NULL;
2353 debug_merge_allocated = false;
2355 coff_data (abfd)->link_info = info;
2357 finfo.strtab = _bfd_stringtab_init ();
2358 if (finfo.strtab == NULL)
2361 if (! coff_debug_merge_hash_table_init (&finfo.debug_merge))
2363 debug_merge_allocated = true;
2365 /* Compute the file positions for all the sections. */
2366 if (! abfd->output_has_begun)
2368 if (! bfd_coff_compute_section_file_positions (abfd))
2372 /* Count the line numbers and relocation entries required for the
2373 output file. Set the file positions for the relocs. */
2374 rel_filepos = obj_relocbase (abfd);
2375 relsz = bfd_coff_relsz (abfd);
2376 max_contents_size = 0;
2377 max_lineno_count = 0;
2378 max_reloc_count = 0;
2380 for (o = abfd->sections; o != NULL; o = o->next)
2383 o->lineno_count = 0;
2384 for (p = o->link_order_head; p != NULL; p = p->next)
2387 if (p->type == bfd_indirect_link_order)
2391 sec = p->u.indirect.section;
2393 /* Mark all sections which are to be included in the
2394 link. This will normally be every section. We need
2395 to do this so that we can identify any sections which
2396 the linker has decided to not include. */
2397 sec->linker_mark = true;
2399 if (info->strip == strip_none
2400 || info->strip == strip_some)
2401 o->lineno_count += sec->lineno_count;
2403 if (info->relocateable)
2404 o->reloc_count += sec->reloc_count;
2406 if (sec->_raw_size > max_contents_size)
2407 max_contents_size = sec->_raw_size;
2408 if (sec->lineno_count > max_lineno_count)
2409 max_lineno_count = sec->lineno_count;
2410 if (sec->reloc_count > max_reloc_count)
2411 max_reloc_count = sec->reloc_count;
2413 else if (info->relocateable
2414 && (p->type == bfd_section_reloc_link_order
2415 || p->type == bfd_symbol_reloc_link_order))
2418 if (o->reloc_count == 0)
2422 o->flags |= SEC_RELOC;
2423 o->rel_filepos = rel_filepos;
2424 rel_filepos += o->reloc_count * relsz;
2428 /* If doing a relocateable link, allocate space for the pointers we
2430 if (info->relocateable)
2434 /* We use section_count + 1, rather than section_count, because
2435 the target_index fields are 1 based. */
2436 finfo.section_info =
2437 ((struct coff_link_section_info *)
2438 bfd_malloc ((abfd->section_count + 1)
2439 * sizeof (struct coff_link_section_info)));
2440 if (finfo.section_info == NULL)
2442 for (i = 0; i <= abfd->section_count; i++)
2444 finfo.section_info[i].relocs = NULL;
2445 finfo.section_info[i].rel_hashes = NULL;
2449 /* We now know the size of the relocs, so we can determine the file
2450 positions of the line numbers. */
2451 line_filepos = rel_filepos;
2452 linesz = bfd_coff_linesz (abfd);
2453 max_output_reloc_count = 0;
2454 for (o = abfd->sections; o != NULL; o = o->next)
2456 if (o->lineno_count == 0)
2457 o->line_filepos = 0;
2460 o->line_filepos = line_filepos;
2461 line_filepos += o->lineno_count * linesz;
2464 if (o->reloc_count != 0)
2466 /* We don't know the indices of global symbols until we have
2467 written out all the local symbols. For each section in
2468 the output file, we keep an array of pointers to hash
2469 table entries. Each entry in the array corresponds to a
2470 reloc. When we find a reloc against a global symbol, we
2471 set the corresponding entry in this array so that we can
2472 fix up the symbol index after we have written out all the
2475 Because of this problem, we also keep the relocs in
2476 memory until the end of the link. This wastes memory,
2477 but only when doing a relocateable link, which is not the
2479 BFD_ASSERT (info->relocateable);
2480 finfo.section_info[o->target_index].relocs =
2481 ((struct internal_reloc *)
2482 bfd_malloc (o->reloc_count * sizeof (struct internal_reloc)));
2483 finfo.section_info[o->target_index].rel_hashes =
2484 ((struct coff_link_hash_entry **)
2485 bfd_malloc (o->reloc_count
2486 * sizeof (struct coff_link_hash_entry *)));
2487 if (finfo.section_info[o->target_index].relocs == NULL
2488 || finfo.section_info[o->target_index].rel_hashes == NULL)
2491 if (o->reloc_count > max_output_reloc_count)
2492 max_output_reloc_count = o->reloc_count;
2495 /* Reset the reloc and lineno counts, so that we can use them to
2496 count the number of entries we have output so far. */
2498 o->lineno_count = 0;
2501 obj_sym_filepos (abfd) = line_filepos;
2503 /* Figure out the largest number of symbols in an input BFD. Take
2504 the opportunity to clear the output_has_begun fields of all the
2507 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
2511 sub->output_has_begun = false;
2512 sz = obj_raw_syment_count (sub);
2513 if (sz > max_sym_count)
2517 /* Allocate some buffers used while linking. */
2518 finfo.internal_syms = ((struct internal_syment *)
2519 bfd_malloc (max_sym_count
2520 * sizeof (struct internal_syment)));
2521 finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count
2522 * sizeof (asection *));
2523 finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long));
2524 finfo.outsyms = ((bfd_byte *)
2525 bfd_malloc ((size_t) ((max_sym_count + 1) * symesz)));
2526 finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count
2527 * bfd_coff_linesz (abfd));
2528 finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
2529 finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
2530 if (! info->relocateable)
2531 finfo.internal_relocs = ((struct internal_reloc *)
2532 bfd_malloc (max_reloc_count
2533 * sizeof (struct internal_reloc)));
2534 if ((finfo.internal_syms == NULL && max_sym_count > 0)
2535 || (finfo.sec_ptrs == NULL && max_sym_count > 0)
2536 || (finfo.sym_indices == NULL && max_sym_count > 0)
2537 || finfo.outsyms == NULL
2538 || (finfo.linenos == NULL && max_lineno_count > 0)
2539 || (finfo.contents == NULL && max_contents_size > 0)
2540 || (finfo.external_relocs == NULL && max_reloc_count > 0)
2541 || (! info->relocateable
2542 && finfo.internal_relocs == NULL
2543 && max_reloc_count > 0))
2546 /* We now know the position of everything in the file, except that
2547 we don't know the size of the symbol table and therefore we don't
2548 know where the string table starts. We just build the string
2549 table in memory as we go along. We process all the relocations
2550 for a single input file at once. */
2551 obj_raw_syment_count (abfd) = 0;
2553 if (coff_backend_info (abfd)->_bfd_coff_start_final_link)
2555 if (! bfd_coff_start_final_link (abfd, info))
2559 for (o = abfd->sections; o != NULL; o = o->next)
2561 for (p = o->link_order_head; p != NULL; p = p->next)
2563 if (p->type == bfd_indirect_link_order
2564 && (bfd_get_flavour (p->u.indirect.section->owner)
2565 == bfd_target_coff_flavour))
2567 sub = p->u.indirect.section->owner;
2568 #ifdef POWERPC_LE_PE
2569 if (! sub->output_has_begun && !ppc_do_last(sub))
2571 if (! sub->output_has_begun)
2574 if (! _bfd_coff_link_input_bfd (&finfo, sub))
2576 sub->output_has_begun = true;
2579 else if (p->type == bfd_section_reloc_link_order
2580 || p->type == bfd_symbol_reloc_link_order)
2582 if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p))
2587 if (! _bfd_default_link_order (abfd, info, o, p))
2593 #ifdef POWERPC_LE_PE
2595 bfd* last_one = ppc_get_last();
2598 if (! _bfd_coff_link_input_bfd (&finfo, last_one))
2601 last_one->output_has_begun = true;
2605 /* Free up the buffers used by _bfd_coff_link_input_bfd. */
2607 coff_debug_merge_hash_table_free (&finfo.debug_merge);
2608 debug_merge_allocated = false;
2610 if (finfo.internal_syms != NULL)
2612 free (finfo.internal_syms);
2613 finfo.internal_syms = NULL;
2615 if (finfo.sec_ptrs != NULL)
2617 free (finfo.sec_ptrs);
2618 finfo.sec_ptrs = NULL;
2620 if (finfo.sym_indices != NULL)
2622 free (finfo.sym_indices);
2623 finfo.sym_indices = NULL;
2625 if (finfo.linenos != NULL)
2627 free (finfo.linenos);
2628 finfo.linenos = NULL;
2630 if (finfo.contents != NULL)
2632 free (finfo.contents);
2633 finfo.contents = NULL;
2635 if (finfo.external_relocs != NULL)
2637 free (finfo.external_relocs);
2638 finfo.external_relocs = NULL;
2640 if (finfo.internal_relocs != NULL)
2642 free (finfo.internal_relocs);
2643 finfo.internal_relocs = NULL;
2646 /* The value of the last C_FILE symbol is supposed to be the symbol
2647 index of the first external symbol. Write it out again if
2649 if (finfo.last_file_index != -1
2650 && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd))
2652 finfo.last_file.n_value = obj_raw_syment_count (abfd);
2653 bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
2654 (PTR) finfo.outsyms);
2656 (obj_sym_filepos (abfd)
2657 + finfo.last_file_index * symesz),
2659 || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz)
2663 /* Write out the global symbols. */
2664 finfo.failed = false;
2665 coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym,
2670 /* The outsyms buffer is used by _bfd_coff_write_global_sym. */
2671 if (finfo.outsyms != NULL)
2673 free (finfo.outsyms);
2674 finfo.outsyms = NULL;
2677 if (info->relocateable)
2679 /* Now that we have written out all the global symbols, we know
2680 the symbol indices to use for relocs against them, and we can
2681 finally write out the relocs. */
2682 external_relocs = ((bfd_byte *)
2683 bfd_malloc (max_output_reloc_count * relsz));
2684 if (external_relocs == NULL)
2687 for (o = abfd->sections; o != NULL; o = o->next)
2689 struct internal_reloc *irel;
2690 struct internal_reloc *irelend;
2691 struct coff_link_hash_entry **rel_hash;
2694 if (o->reloc_count == 0)
2697 irel = finfo.section_info[o->target_index].relocs;
2698 irelend = irel + o->reloc_count;
2699 rel_hash = finfo.section_info[o->target_index].rel_hashes;
2700 erel = external_relocs;
2701 for (; irel < irelend; irel++, rel_hash++, erel += relsz)
2703 if (*rel_hash != NULL)
2705 BFD_ASSERT ((*rel_hash)->indx >= 0);
2706 irel->r_symndx = (*rel_hash)->indx;
2708 bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
2711 if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
2712 || bfd_write ((PTR) external_relocs, relsz, o->reloc_count,
2713 abfd) != relsz * o->reloc_count)
2717 free (external_relocs);
2718 external_relocs = NULL;
2721 /* Free up the section information. */
2722 if (finfo.section_info != NULL)
2726 for (i = 0; i < abfd->section_count; i++)
2728 if (finfo.section_info[i].relocs != NULL)
2729 free (finfo.section_info[i].relocs);
2730 if (finfo.section_info[i].rel_hashes != NULL)
2731 free (finfo.section_info[i].rel_hashes);
2733 free (finfo.section_info);
2734 finfo.section_info = NULL;
2737 /* If we have optimized stabs strings, output them. */
2738 if (coff_hash_table (info)->stab_info != NULL)
2740 if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info))
2744 /* Write out the string table. */
2745 if (obj_raw_syment_count (abfd) != 0)
2748 (obj_sym_filepos (abfd)
2749 + obj_raw_syment_count (abfd) * symesz),
2753 #if STRING_SIZE_SIZE == 4
2755 _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
2756 (bfd_byte *) strbuf);
2758 #error Change bfd_h_put_32
2761 if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE)
2764 if (! _bfd_stringtab_emit (abfd, finfo.strtab))
2768 _bfd_stringtab_free (finfo.strtab);
2770 /* Setting bfd_get_symcount to 0 will cause write_object_contents to
2771 not try to write out the symbols. */
2772 bfd_get_symcount (abfd) = 0;
2777 if (debug_merge_allocated)
2778 coff_debug_merge_hash_table_free (&finfo.debug_merge);
2779 if (finfo.strtab != NULL)
2780 _bfd_stringtab_free (finfo.strtab);
2781 if (finfo.section_info != NULL)
2785 for (i = 0; i < abfd->section_count; i++)
2787 if (finfo.section_info[i].relocs != NULL)
2788 free (finfo.section_info[i].relocs);
2789 if (finfo.section_info[i].rel_hashes != NULL)
2790 free (finfo.section_info[i].rel_hashes);
2792 free (finfo.section_info);
2794 if (finfo.internal_syms != NULL)
2795 free (finfo.internal_syms);
2796 if (finfo.sec_ptrs != NULL)
2797 free (finfo.sec_ptrs);
2798 if (finfo.sym_indices != NULL)
2799 free (finfo.sym_indices);
2800 if (finfo.outsyms != NULL)
2801 free (finfo.outsyms);
2802 if (finfo.linenos != NULL)
2803 free (finfo.linenos);
2804 if (finfo.contents != NULL)
2805 free (finfo.contents);
2806 if (finfo.external_relocs != NULL)
2807 free (finfo.external_relocs);
2808 if (finfo.internal_relocs != NULL)
2809 free (finfo.internal_relocs);
2810 if (external_relocs != NULL)
2811 free (external_relocs);
2816 /* Forward declaration for use by alternative_target field. */
2817 #ifdef TARGET_BIG_SYM
2818 extern const bfd_target TARGET_BIG_SYM;
2821 /* The transfer vectors that lead the outside world to all of the above. */
2823 #ifdef TARGET_LITTLE_SYM
2824 const bfd_target TARGET_LITTLE_SYM =
2826 TARGET_LITTLE_NAME, /* name or coff-arm-little */
2827 bfd_target_coff_flavour,
2828 BFD_ENDIAN_LITTLE, /* data byte order is little */
2829 BFD_ENDIAN_LITTLE, /* header byte order is little */
2831 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2832 HAS_LINENO | HAS_DEBUG |
2833 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2835 #ifndef COFF_WITH_PE
2836 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2838 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2839 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2842 0, /* leading char */
2843 '/', /* ar_pad_char */
2844 15, /* ar_max_namelen??? FIXMEmgo */
2846 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2847 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2848 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
2850 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2851 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2852 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
2854 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2855 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2856 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2858 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2859 _bfd_write_archive_contents, bfd_false},
2861 BFD_JUMP_TABLE_GENERIC (coff),
2862 BFD_JUMP_TABLE_COPY (coff),
2863 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2864 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2865 BFD_JUMP_TABLE_SYMBOLS (coff),
2866 BFD_JUMP_TABLE_RELOCS (coff),
2867 BFD_JUMP_TABLE_WRITE (coff),
2868 BFD_JUMP_TABLE_LINK (coff),
2869 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2871 /* Alternative_target. */
2872 #ifdef TARGET_BIG_SYM
2882 #ifdef TARGET_BIG_SYM
2883 const bfd_target TARGET_BIG_SYM =
2886 bfd_target_coff_flavour,
2887 BFD_ENDIAN_BIG, /* data byte order is big */
2888 BFD_ENDIAN_BIG, /* header byte order is big */
2890 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2891 HAS_LINENO | HAS_DEBUG |
2892 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2894 #ifndef COFF_WITH_PE
2895 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2897 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2898 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2901 0, /* leading char */
2902 '/', /* ar_pad_char */
2903 15, /* ar_max_namelen??? FIXMEmgo */
2905 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2906 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2907 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
2909 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2910 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2911 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
2913 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2914 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2915 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2917 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2918 _bfd_write_archive_contents, bfd_false},
2920 BFD_JUMP_TABLE_GENERIC (coff),
2921 BFD_JUMP_TABLE_COPY (coff),
2922 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2923 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2924 BFD_JUMP_TABLE_SYMBOLS (coff),
2925 BFD_JUMP_TABLE_RELOCS (coff),
2926 BFD_JUMP_TABLE_WRITE (coff),
2927 BFD_JUMP_TABLE_LINK (coff),
2928 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2930 /* Alternative_target. */
2931 #ifdef TARGET_LITTLE_SYM
2932 & TARGET_LITTLE_SYM,