1 /* BFD back-end for PowerPC Microsoft Portable Executable files.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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 3 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, 51 Franklin Street - Fifth Floor,
27 Boston, MA 02110-1301, 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. */
40 #include "coff/powerpc.h"
41 #include "coff/internal.h"
49 #define BADMAG(x) PPCBADMAG(x)
53 /* This file is compiled more than once, but we only compile the
54 final_link routine once. */
55 extern bfd_boolean ppc_bfd_coff_final_link
56 PARAMS ((bfd *, struct bfd_link_info *));
57 extern void dump_toc PARAMS ((PTR));
59 /* The toc is a set of bfd_vma fields. We use the fact that valid
60 addresses are even (i.e. the bit representing "1" is off) to allow
61 us to encode a little extra information in the field
62 - Unallocated addresses are initialized to 1.
63 - Allocated addresses are even numbers.
64 The first time we actually write a reference to the toc in the bfd,
65 we want to record that fact in a fixup file (if it is asked for), so
66 we keep track of whether or not an address has been written by marking
67 the low order bit with a "1" upon writing. */
69 #define SET_UNALLOCATED(x) ((x) = 1)
70 #define IS_UNALLOCATED(x) ((x) == 1)
72 #define IS_WRITTEN(x) ((x) & 1)
73 #define MARK_AS_WRITTEN(x) ((x) |= 1)
74 #define MAKE_ADDR_AGAIN(x) ((x) &= ~1)
76 /* Turn on this check if you suspect something amiss in the hash tables. */
79 /* Need a 7 char string for an eye catcher. */
82 #define HASH_CHECK_DCL char eye_catcher[8];
83 #define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE)
84 #define HASH_CHECK(addr) \
85 if (strcmp(addr->eye_catcher, EYE) != 0) \
88 _("File %s, line %d, Hash check failure, bad eye %8s\n"), \
89 __FILE__, __LINE__, addr->eye_catcher); \
95 #define HASH_CHECK_DCL
96 #define HASH_CHECK_INIT(ret)
97 #define HASH_CHECK(addr)
101 /* In order not to add an int to every hash table item for every coff
102 linker, we define our own hash table, derived from the coff one. */
104 /* PE linker hash table entries. */
106 struct ppc_coff_link_hash_entry
108 struct coff_link_hash_entry root; /* First entry, as required. */
110 /* As we wonder around the relocs, we'll keep the assigned toc_offset
112 bfd_vma toc_offset; /* Our addition, as required. */
114 unsigned long int glue_insn;
119 /* PE linker hash table. */
121 struct ppc_coff_link_hash_table
123 struct coff_link_hash_table root; /* First entry, as required. */
126 static struct bfd_hash_entry *ppc_coff_link_hash_newfunc
127 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
129 static struct bfd_link_hash_table *ppc_coff_link_hash_table_create
131 static bfd_boolean coff_ppc_relocate_section
132 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
133 struct internal_reloc *, struct internal_syment *, asection **));
134 static reloc_howto_type *coff_ppc_rtype_to_howto
135 PARAMS ((bfd *, asection *, struct internal_reloc *,
136 struct coff_link_hash_entry *, struct internal_syment *,
139 /* Routine to create an entry in the link hash table. */
141 static struct bfd_hash_entry *
142 ppc_coff_link_hash_newfunc (entry, table, string)
143 struct bfd_hash_entry *entry;
144 struct bfd_hash_table *table;
147 struct ppc_coff_link_hash_entry *ret =
148 (struct ppc_coff_link_hash_entry *) entry;
150 /* Allocate the structure if it has not already been allocated by a
152 if (ret == (struct ppc_coff_link_hash_entry *) NULL)
153 ret = (struct ppc_coff_link_hash_entry *)
154 bfd_hash_allocate (table,
155 sizeof (struct ppc_coff_link_hash_entry));
157 if (ret == (struct ppc_coff_link_hash_entry *) NULL)
160 /* Call the allocation method of the superclass. */
161 ret = ((struct ppc_coff_link_hash_entry *)
162 _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret,
167 /* Initialize the local fields. */
168 SET_UNALLOCATED (ret->toc_offset);
169 ret->symbol_is_glue = 0;
172 HASH_CHECK_INIT (ret);
175 return (struct bfd_hash_entry *) ret;
178 /* Initialize a PE linker hash table. */
181 ppc_coff_link_hash_table_init (struct ppc_coff_link_hash_table *table,
183 struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *,
184 struct bfd_hash_table *,
186 unsigned int entsize)
188 return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc, entsize);
191 /* Create a PE linker hash table. */
193 static struct bfd_link_hash_table *
194 ppc_coff_link_hash_table_create (abfd)
197 struct ppc_coff_link_hash_table *ret;
198 bfd_size_type amt = sizeof (struct ppc_coff_link_hash_table);
200 ret = (struct ppc_coff_link_hash_table *) bfd_malloc (amt);
203 if (!ppc_coff_link_hash_table_init (ret, abfd,
204 ppc_coff_link_hash_newfunc,
205 sizeof (struct ppc_coff_link_hash_entry)))
208 return (struct bfd_link_hash_table *) NULL;
210 return &ret->root.root;
213 /* Now, tailor coffcode.h to use our hash stuff. */
215 #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create
217 /* The nt loader points the toc register to &toc + 32768, in order to
218 use the complete range of a 16-bit displacement. We have to adjust
219 for this when we fix up loads displaced off the toc reg. */
220 #define TOC_LOAD_ADJUSTMENT (-32768)
221 #define TOC_SECTION_NAME ".private.toc"
223 /* The main body of code is in coffcode.h. */
225 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
227 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
228 from smaller values. Start with zero, widen, *then* decrement. */
229 #define MINUS_ONE (((bfd_vma)0) - 1)
231 /* These should definitely go in a header file somewhere... */
234 #define IMAGE_REL_PPC_ABSOLUTE 0x0000
237 #define IMAGE_REL_PPC_ADDR64 0x0001
240 #define IMAGE_REL_PPC_ADDR32 0x0002
242 /* 26-bit address, shifted left 2 (branch absolute) */
243 #define IMAGE_REL_PPC_ADDR24 0x0003
246 #define IMAGE_REL_PPC_ADDR16 0x0004
248 /* 16-bit address, shifted left 2 (load doubleword) */
249 #define IMAGE_REL_PPC_ADDR14 0x0005
251 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
252 #define IMAGE_REL_PPC_REL24 0x0006
254 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
255 #define IMAGE_REL_PPC_REL14 0x0007
257 /* 16-bit offset from TOC base */
258 #define IMAGE_REL_PPC_TOCREL16 0x0008
260 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
261 #define IMAGE_REL_PPC_TOCREL14 0x0009
263 /* 32-bit addr w/o image base */
264 #define IMAGE_REL_PPC_ADDR32NB 0x000A
266 /* va of containing section (as in an image sectionhdr) */
267 #define IMAGE_REL_PPC_SECREL 0x000B
269 /* sectionheader number */
270 #define IMAGE_REL_PPC_SECTION 0x000C
272 /* substitute TOC restore instruction iff symbol is glue code */
273 #define IMAGE_REL_PPC_IFGLUE 0x000D
275 /* symbol is glue code; virtual address is TOC restore instruction */
276 #define IMAGE_REL_PPC_IMGLUE 0x000E
278 /* va of containing section (limited to 16 bits) */
279 #define IMAGE_REL_PPC_SECREL16 0x000F
281 /* Stuff to handle immediate data when the number of bits in the
282 data is greater than the number of bits in the immediate field
283 We need to do (usually) 32 bit arithmetic on 16 bit chunks. */
284 #define IMAGE_REL_PPC_REFHI 0x0010
285 #define IMAGE_REL_PPC_REFLO 0x0011
286 #define IMAGE_REL_PPC_PAIR 0x0012
288 /* This is essentially the same as tocrel16, with TOCDEFN assumed. */
289 #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013
291 /* Flag bits in IMAGE_RELOCATION.TYPE. */
293 /* Subtract reloc value rather than adding it. */
294 #define IMAGE_REL_PPC_NEG 0x0100
296 /* Fix branch prediction bit to predict branch taken. */
297 #define IMAGE_REL_PPC_BRTAKEN 0x0200
299 /* Fix branch prediction bit to predict branch not taken. */
300 #define IMAGE_REL_PPC_BRNTAKEN 0x0400
302 /* TOC slot defined in file (or, data in toc). */
303 #define IMAGE_REL_PPC_TOCDEFN 0x0800
305 /* Masks to isolate above values in IMAGE_RELOCATION.Type. */
306 #define IMAGE_REL_PPC_TYPEMASK 0x00FF
307 #define IMAGE_REL_PPC_FLAGMASK 0x0F00
309 #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK)
310 #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK)
311 #define EXTRACT_JUNK(x) \
312 ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK))
314 /* Static helper functions to make relocation work. */
315 /* (Work In Progress) */
317 static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd,
324 static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd,
332 static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd,
340 static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd,
348 static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd,
356 static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd,
364 static bfd_boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto));
366 /* FIXME: It'll take a while to get through all of these. I only need a few to
367 get us started, so those I'll make sure work. Those marked FIXME are either
368 completely unverified or have a specific unknown marked in the comment. */
370 /* Relocation entries for Windows/NT on PowerPC.
372 From the document "" we find the following listed as used relocs:
375 ADDR[64|32|16] : fields that hold addresses in data fields or the
376 16 bit displacement field on a load/store.
377 ADDR[24|14] : fields that hold addresses in branch and cond
378 branches. These represent [26|16] bit addresses.
379 The low order 2 bits are preserved.
380 REL[24|14] : branches relative to the Instruction Address
381 register. These represent [26|16] bit addresses,
382 as before. The instruction field will be zero, and
383 the address of the SYM will be inserted at link time.
384 TOCREL16 : 16 bit displacement field referring to a slot in
386 TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14.
387 ADDR32NB : 32 bit address relative to the virtual origin.
388 (On the alpha, this is always a linker generated thunk)
389 (i.e. 32bit addr relative to the image base)
390 SECREL : The value is relative to the start of the section
391 containing the symbol.
392 SECTION : access to the header containing the item. Supports the
395 In particular, note that the document does not indicate that the
396 relocations listed in the header file are used. */
399 static reloc_howto_type ppc_coff_howto_table[] =
401 /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */
403 HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */
405 0, /* size (0 = byte, 1 = short, 2 = long) */
407 FALSE, /* pc_relative */
409 complain_overflow_dont, /* dont complain_on_overflow */
410 0, /* special_function */
411 "ABSOLUTE", /* name */
412 FALSE, /* partial_inplace */
415 FALSE), /* pcrel_offset */
417 /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */
419 HOWTO(IMAGE_REL_PPC_ADDR64, /* type */
421 3, /* size (0 = byte, 1 = short, 2 = long) */
423 FALSE, /* pc_relative */
425 complain_overflow_bitfield, /* complain_on_overflow */
426 0, /* special_function */
428 TRUE, /* partial_inplace */
429 MINUS_ONE, /* src_mask */
430 MINUS_ONE, /* dst_mask */
431 FALSE), /* pcrel_offset */
433 /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */
435 HOWTO (IMAGE_REL_PPC_ADDR32, /* type */
437 2, /* size (0 = byte, 1 = short, 2 = long) */
439 FALSE, /* pc_relative */
441 complain_overflow_bitfield, /* complain_on_overflow */
442 0, /* special_function */
444 TRUE, /* partial_inplace */
445 0xffffffff, /* src_mask */
446 0xffffffff, /* dst_mask */
447 FALSE), /* pcrel_offset */
449 /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */
450 /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */
451 /* Of course, That's the IBM approved bit numbering, which is not what */
452 /* anyone else uses.... The li field is in bit 2 thru 25 */
454 HOWTO (IMAGE_REL_PPC_ADDR24, /* type */
456 2, /* size (0 = byte, 1 = short, 2 = long) */
458 FALSE, /* pc_relative */
460 complain_overflow_bitfield, /* complain_on_overflow */
461 0, /* special_function */
463 TRUE, /* partial_inplace */
464 0x07fffffc, /* src_mask */
465 0x07fffffc, /* dst_mask */
466 FALSE), /* pcrel_offset */
468 /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */
470 HOWTO (IMAGE_REL_PPC_ADDR16, /* type */
472 1, /* size (0 = byte, 1 = short, 2 = long) */
474 FALSE, /* pc_relative */
476 complain_overflow_signed, /* complain_on_overflow */
477 0, /* special_function */
479 TRUE, /* partial_inplace */
480 0xffff, /* src_mask */
481 0xffff, /* dst_mask */
482 FALSE), /* pcrel_offset */
484 /* IMAGE_REL_PPC_ADDR14 0x0005 */
485 /* 16-bit address, shifted left 2 (load doubleword) */
486 /* FIXME: the mask is likely wrong, and the bit position may be as well */
488 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
490 1, /* size (0 = byte, 1 = short, 2 = long) */
492 FALSE, /* pc_relative */
494 complain_overflow_signed, /* complain_on_overflow */
495 0, /* special_function */
497 TRUE, /* partial_inplace */
498 0xffff, /* src_mask */
499 0xffff, /* dst_mask */
500 FALSE), /* pcrel_offset */
502 /* IMAGE_REL_PPC_REL24 0x0006 */
503 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
505 HOWTO (IMAGE_REL_PPC_REL24, /* type */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
509 TRUE, /* pc_relative */
511 complain_overflow_signed, /* complain_on_overflow */
512 0, /* special_function */
514 TRUE, /* partial_inplace */
515 0x3fffffc, /* src_mask */
516 0x3fffffc, /* dst_mask */
517 FALSE), /* pcrel_offset */
519 /* IMAGE_REL_PPC_REL14 0x0007 */
520 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
521 /* FIXME: the mask is likely wrong, and the bit position may be as well */
522 /* FIXME: how does it know how far to shift? */
524 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
526 1, /* size (0 = byte, 1 = short, 2 = long) */
528 FALSE, /* pc_relative */
530 complain_overflow_signed, /* complain_on_overflow */
531 0, /* special_function */
533 TRUE, /* partial_inplace */
534 0xffff, /* src_mask */
535 0xffff, /* dst_mask */
536 TRUE), /* pcrel_offset */
538 /* IMAGE_REL_PPC_TOCREL16 0x0008 */
539 /* 16-bit offset from TOC base */
541 HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */
543 1, /* size (0 = byte, 1 = short, 2 = long) */
545 FALSE, /* pc_relative */
547 complain_overflow_dont, /* complain_on_overflow */
548 ppc_toc16_reloc, /* special_function */
549 "TOCREL16", /* name */
550 FALSE, /* partial_inplace */
551 0xffff, /* src_mask */
552 0xffff, /* dst_mask */
553 FALSE), /* pcrel_offset */
555 /* IMAGE_REL_PPC_TOCREL14 0x0009 */
556 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
558 HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */
560 1, /* size (0 = byte, 1 = short, 2 = long) */
562 FALSE, /* pc_relative */
564 complain_overflow_signed, /* complain_on_overflow */
565 0, /* special_function */
566 "TOCREL14", /* name */
567 FALSE, /* partial_inplace */
568 0xffff, /* src_mask */
569 0xffff, /* dst_mask */
570 FALSE), /* pcrel_offset */
572 /* IMAGE_REL_PPC_ADDR32NB 0x000A */
573 /* 32-bit addr w/ image base */
575 HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */
577 2, /* size (0 = byte, 1 = short, 2 = long) */
579 FALSE, /* pc_relative */
581 complain_overflow_signed, /* complain_on_overflow */
582 0, /* special_function */
583 "ADDR32NB", /* name */
584 TRUE, /* partial_inplace */
585 0xffffffff, /* src_mask */
586 0xffffffff, /* dst_mask */
587 FALSE), /* pcrel_offset */
589 /* IMAGE_REL_PPC_SECREL 0x000B */
590 /* va of containing section (as in an image sectionhdr) */
592 HOWTO (IMAGE_REL_PPC_SECREL,/* type */
594 2, /* size (0 = byte, 1 = short, 2 = long) */
596 FALSE, /* pc_relative */
598 complain_overflow_signed, /* complain_on_overflow */
599 ppc_secrel_reloc, /* special_function */
601 TRUE, /* partial_inplace */
602 0xffffffff, /* src_mask */
603 0xffffffff, /* dst_mask */
604 TRUE), /* pcrel_offset */
606 /* IMAGE_REL_PPC_SECTION 0x000C */
607 /* sectionheader number */
609 HOWTO (IMAGE_REL_PPC_SECTION,/* type */
611 2, /* size (0 = byte, 1 = short, 2 = long) */
613 FALSE, /* pc_relative */
615 complain_overflow_signed, /* complain_on_overflow */
616 ppc_section_reloc, /* special_function */
617 "SECTION", /* name */
618 TRUE, /* partial_inplace */
619 0xffffffff, /* src_mask */
620 0xffffffff, /* dst_mask */
621 TRUE), /* pcrel_offset */
623 /* IMAGE_REL_PPC_IFGLUE 0x000D */
624 /* substitute TOC restore instruction iff symbol is glue code */
626 HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */
628 2, /* size (0 = byte, 1 = short, 2 = long) */
630 FALSE, /* pc_relative */
632 complain_overflow_signed, /* complain_on_overflow */
633 0, /* special_function */
635 TRUE, /* partial_inplace */
636 0xffffffff, /* src_mask */
637 0xffffffff, /* dst_mask */
638 FALSE), /* pcrel_offset */
640 /* IMAGE_REL_PPC_IMGLUE 0x000E */
641 /* symbol is glue code; virtual address is TOC restore instruction */
643 HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
647 FALSE, /* pc_relative */
649 complain_overflow_dont, /* complain_on_overflow */
650 ppc_imglue_reloc, /* special_function */
652 FALSE, /* partial_inplace */
653 0xffffffff, /* src_mask */
654 0xffffffff, /* dst_mask */
655 FALSE), /* pcrel_offset */
657 /* IMAGE_REL_PPC_SECREL16 0x000F */
658 /* va of containing section (limited to 16 bits) */
660 HOWTO (IMAGE_REL_PPC_SECREL16,/* type */
662 1, /* size (0 = byte, 1 = short, 2 = long) */
664 FALSE, /* pc_relative */
666 complain_overflow_signed, /* complain_on_overflow */
667 0, /* special_function */
668 "SECREL16", /* name */
669 TRUE, /* partial_inplace */
670 0xffff, /* src_mask */
671 0xffff, /* dst_mask */
672 TRUE), /* pcrel_offset */
674 /* IMAGE_REL_PPC_REFHI 0x0010 */
676 HOWTO (IMAGE_REL_PPC_REFHI, /* type */
678 1, /* size (0 = byte, 1 = short, 2 = long) */
680 FALSE, /* pc_relative */
682 complain_overflow_signed, /* complain_on_overflow */
683 ppc_refhi_reloc, /* special_function */
685 TRUE, /* partial_inplace */
686 0xffffffff, /* src_mask */
687 0xffffffff, /* dst_mask */
688 FALSE), /* pcrel_offset */
690 /* IMAGE_REL_PPC_REFLO 0x0011 */
692 HOWTO (IMAGE_REL_PPC_REFLO, /* type */
694 1, /* size (0 = byte, 1 = short, 2 = long) */
696 FALSE, /* pc_relative */
698 complain_overflow_signed, /* complain_on_overflow */
699 ppc_refhi_reloc, /* special_function */
701 TRUE, /* partial_inplace */
702 0xffffffff, /* src_mask */
703 0xffffffff, /* dst_mask */
704 FALSE), /* pcrel_offset */
706 /* IMAGE_REL_PPC_PAIR 0x0012 */
708 HOWTO (IMAGE_REL_PPC_PAIR, /* type */
710 1, /* size (0 = byte, 1 = short, 2 = long) */
712 FALSE, /* pc_relative */
714 complain_overflow_signed, /* complain_on_overflow */
715 ppc_pair_reloc, /* special_function */
717 TRUE, /* partial_inplace */
718 0xffffffff, /* src_mask */
719 0xffffffff, /* dst_mask */
720 FALSE), /* pcrel_offset */
722 /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */
723 /* 16-bit offset from TOC base, without causing a definition */
725 HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */
727 1, /* size (0 = byte, 1 = short, 2 = long) */
729 FALSE, /* pc_relative */
731 complain_overflow_dont, /* complain_on_overflow */
732 0, /* special_function */
733 "TOCREL16, TOCDEFN", /* name */
734 FALSE, /* partial_inplace */
735 0xffff, /* src_mask */
736 0xffff, /* dst_mask */
737 FALSE), /* pcrel_offset */
741 /* Some really cheezy macros that can be turned on to test stderr :-) */
750 fprintf (stderr,_("Unimplemented Relocation -- %s\n"),x); \
754 #define DUMP_RELOC(n,r) \
756 fprintf (stderr,"%s sym %d, addr %d, addend %d\n", \
757 n, (*(r->sym_ptr_ptr))->name, \
758 r->address, r->addend); \
761 /* Given a reloc name, n, and a pointer to an internal_reloc,
762 dump out interesting information on the contents
764 #define n_name _n._n_name
765 #define n_zeroes _n._n_n._n_zeroes
766 #define n_offset _n._n_n._n_offset */
768 #define DUMP_RELOC2(n,r) \
770 fprintf (stderr,"%s sym %d, r_vaddr %d %s\n", \
771 n, r->r_symndx, r->r_vaddr, \
772 (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \
778 #define DUMP_RELOC(n,r)
779 #define DUMP_RELOC2(n,r)
782 /* TOC construction and management routines. */
784 /* This file is compiled twice, and these variables are defined in one
785 of the compilations. FIXME: This is confusing and weird. Also,
786 BFD should not use global variables. */
787 extern bfd * bfd_of_toc_owner;
788 extern long int global_toc_size;
789 extern long int import_table_size;
790 extern long int first_thunk_address;
791 extern long int thunk_size;
809 struct list_ele *next;
811 enum ref_category cat;
816 extern struct list_ele *head;
817 extern struct list_ele *tail;
819 static void record_toc
820 PARAMS ((asection *, bfd_signed_vma, enum ref_category, const char *));
823 record_toc (toc_section, our_toc_offset, cat, name)
824 asection *toc_section;
825 bfd_signed_vma our_toc_offset;
826 enum ref_category cat;
829 /* Add this entry to our toc addr-offset-name list. */
830 bfd_size_type amt = sizeof (struct list_ele);
831 struct list_ele *t = (struct list_ele *) bfd_malloc (amt);
836 t->offset = our_toc_offset;
839 t->addr = toc_section->output_offset + our_toc_offset;
853 #ifdef COFF_IMAGE_WITH_PE
855 static bfd_boolean ppc_record_toc_entry
856 PARAMS ((bfd *, struct bfd_link_info *, asection *, int, enum toc_type));
857 static void ppc_mark_symbol_as_glue
858 PARAMS ((bfd *, int, struct internal_reloc *));
860 /* Record a toc offset against a symbol. */
862 ppc_record_toc_entry(abfd, info, sec, sym, toc_kind)
864 struct bfd_link_info *info ATTRIBUTE_UNUSED;
865 asection *sec ATTRIBUTE_UNUSED;
867 enum toc_type toc_kind ATTRIBUTE_UNUSED;
869 struct ppc_coff_link_hash_entry *h;
874 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
882 local_syms = obj_coff_local_toc_table(abfd);
889 /* allocate a table */
890 amt = (bfd_size_type) obj_raw_syment_count (abfd) * sizeof (int);
891 local_syms = (int *) bfd_zalloc (abfd, amt);
894 obj_coff_local_toc_table (abfd) = local_syms;
896 for (i = 0; i < obj_raw_syment_count (abfd); ++i)
898 SET_UNALLOCATED (local_syms[i]);
902 if (IS_UNALLOCATED(local_syms[sym]))
904 local_syms[sym] = global_toc_size;
905 global_toc_size += 4;
907 /* The size must fit in a 16-bit displacement. */
908 if (global_toc_size > 65535)
910 (*_bfd_error_handler) (_("TOC overflow"));
911 bfd_set_error (bfd_error_file_too_big);
918 /* Check to see if there's a toc slot allocated. If not, do it
919 here. It will be used in relocate_section. */
920 if (IS_UNALLOCATED(h->toc_offset))
922 h->toc_offset = global_toc_size;
923 global_toc_size += 4;
925 /* The size must fit in a 16-bit displacement. */
926 if (global_toc_size >= 65535)
928 (*_bfd_error_handler) (_("TOC overflow"));
929 bfd_set_error (bfd_error_file_too_big);
938 /* Record a toc offset against a symbol. */
940 ppc_mark_symbol_as_glue(abfd, sym, rel)
943 struct internal_reloc *rel;
945 struct ppc_coff_link_hash_entry *h;
947 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
951 h->symbol_is_glue = 1;
952 h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr);
957 #endif /* COFF_IMAGE_WITH_PE */
959 /* Return TRUE if this relocation should
960 appear in the output .reloc section. */
962 static bfd_boolean in_reloc_p(abfd, howto)
963 bfd * abfd ATTRIBUTE_UNUSED;
964 reloc_howto_type *howto;
967 (! howto->pc_relative)
968 && (howto->type != IMAGE_REL_PPC_ADDR32NB)
969 && (howto->type != IMAGE_REL_PPC_TOCREL16)
970 && (howto->type != IMAGE_REL_PPC_IMGLUE)
971 && (howto->type != IMAGE_REL_PPC_IFGLUE)
972 && (howto->type != IMAGE_REL_PPC_SECREL)
973 && (howto->type != IMAGE_REL_PPC_SECTION)
974 && (howto->type != IMAGE_REL_PPC_SECREL16)
975 && (howto->type != IMAGE_REL_PPC_REFHI)
976 && (howto->type != IMAGE_REL_PPC_REFLO)
977 && (howto->type != IMAGE_REL_PPC_PAIR)
978 && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ;
982 write_base_file_entry (bfd *obfd, struct bfd_link_info *info, bfd_vma addr)
984 if (coff_data (obfd)->pe)
985 addr -= pe_data (obfd)->pe_opthdr.ImageBase;
986 if (fwrite (&addr, sizeof (addr), 1, (FILE *) info->base_file) == 1)
989 bfd_set_error (bfd_error_system_call);
993 /* The reloc processing routine for the optimized COFF linker. */
996 coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section,
997 contents, relocs, syms, sections)
999 struct bfd_link_info *info;
1001 asection *input_section;
1003 struct internal_reloc *relocs;
1004 struct internal_syment *syms;
1005 asection **sections;
1007 struct internal_reloc *rel;
1008 struct internal_reloc *relend;
1009 asection *toc_section = 0;
1011 reloc_howto_type *howto = 0;
1013 /* If we are performing a relocatable link, we don't need to do a
1014 thing. The caller will take care of adjusting the reloc
1015 addresses and symbol indices. */
1016 if (info->relocatable)
1020 relend = rel + input_section->reloc_count;
1021 for (; rel < relend; rel++)
1024 struct ppc_coff_link_hash_entry *h;
1025 struct internal_syment *sym;
1029 bfd_reloc_status_type rstat;
1032 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1033 unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
1035 symndx = rel->r_symndx;
1036 loc = contents + rel->r_vaddr - input_section->vma;
1038 /* FIXME: check bounds on r_type */
1039 howto = ppc_coff_howto_table + r_type;
1048 h = (struct ppc_coff_link_hash_entry *)
1049 (obj_coff_sym_hashes (input_bfd)[symndx]);
1055 sym = syms + symndx;
1058 if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0)
1060 /* An IMGLUE reloc must have a name. Something is very wrong. */
1067 /* FIXME: PAIR unsupported in the following code. */
1071 sec = bfd_abs_section_ptr;
1074 sec = sections[symndx];
1075 val = (sec->output_section->vma
1076 + sec->output_offset
1078 if (! obj_pe (output_bfd))
1086 if (h->root.root.type == bfd_link_hash_defined
1087 || h->root.root.type == bfd_link_hash_defweak)
1089 sec = h->root.root.u.def.section;
1090 val = (h->root.root.u.def.value
1091 + sec->output_section->vma
1092 + sec->output_offset);
1096 if (! ((*info->callbacks->undefined_symbol)
1097 (info, h->root.root.root.string, input_bfd, input_section,
1098 rel->r_vaddr - input_section->vma, TRUE)))
1103 rstat = bfd_reloc_ok;
1105 /* Each case must do its own relocation, setting rstat appropriately. */
1109 (*_bfd_error_handler)
1110 (_("%B: unsupported relocation type 0x%02x"), input_bfd, r_type);
1111 bfd_set_error (bfd_error_bad_value);
1113 case IMAGE_REL_PPC_TOCREL16:
1115 bfd_signed_vma our_toc_offset;
1118 DUMP_RELOC2(howto->name, rel);
1120 if (toc_section == 0)
1122 toc_section = bfd_get_section_by_name (bfd_of_toc_owner,
1125 if ( toc_section == NULL )
1127 /* There is no toc section. Something is very wrong. */
1132 /* Amazing bit tricks present. As we may have seen earlier, we
1133 use the 1 bit to tell us whether or not a toc offset has been
1134 allocated. Now that they've all been allocated, we will use
1135 the 1 bit to tell us if we've written this particular toc
1140 /* It is a file local symbol. */
1141 int *local_toc_table;
1144 sym = syms + symndx;
1145 name = sym->_n._n_name;
1147 local_toc_table = obj_coff_local_toc_table(input_bfd);
1148 our_toc_offset = local_toc_table[symndx];
1150 if (IS_WRITTEN(our_toc_offset))
1152 /* If it has been written out, it is marked with the
1153 1 bit. Fix up our offset, but do not write it out
1155 MAKE_ADDR_AGAIN(our_toc_offset);
1159 /* Write out the toc entry. */
1160 record_toc (toc_section, our_toc_offset, priv,
1163 bfd_put_32 (output_bfd, val,
1164 toc_section->contents + our_toc_offset);
1166 MARK_AS_WRITTEN(local_toc_table[symndx]);
1172 const char *name = h->root.root.root.string;
1173 our_toc_offset = h->toc_offset;
1175 if ((r_flags & IMAGE_REL_PPC_TOCDEFN)
1176 == IMAGE_REL_PPC_TOCDEFN )
1178 /* This is unbelievable cheese. Some knowledgable asm
1179 hacker has decided to use r2 as a base for loading
1180 a value. He/She does this by setting the tocdefn bit,
1181 and not supplying a toc definition. The behaviour is
1182 then to use the difference between the value of the
1183 symbol and the actual location of the toc as the toc
1186 In fact, what is usually happening is, because the
1187 Import Address Table is mapped immediately following
1188 the toc, some trippy library code trying for speed on
1189 dll linkage, takes advantage of that and considers
1190 the IAT to be part of the toc, thus saving a load. */
1192 our_toc_offset = val - (toc_section->output_section->vma
1193 + toc_section->output_offset);
1195 /* The size must still fit in a 16-bit displacement. */
1196 if ((bfd_vma) our_toc_offset >= 65535)
1198 (*_bfd_error_handler)
1199 (_("%B: Relocation for %s of %lx exceeds Toc size limit"),
1201 (unsigned long) our_toc_offset);
1202 bfd_set_error (bfd_error_bad_value);
1206 record_toc (toc_section, our_toc_offset, pub,
1209 else if (IS_WRITTEN (our_toc_offset))
1211 /* If it has been written out, it is marked with the
1212 1 bit. Fix up our offset, but do not write it out
1214 MAKE_ADDR_AGAIN(our_toc_offset);
1218 record_toc(toc_section, our_toc_offset, pub,
1221 /* Write out the toc entry. */
1222 bfd_put_32 (output_bfd, val,
1223 toc_section->contents + our_toc_offset);
1225 MARK_AS_WRITTEN(h->toc_offset);
1226 /* The tricky part is that this is the address that
1227 needs a .reloc entry for it. */
1232 if (fixit && info->base_file)
1234 /* So if this is non pcrelative, and is referenced
1235 to a section or a common symbol, then it needs a reloc. */
1237 /* Relocation to a symbol in a section which
1238 isn't absolute - we output the address here
1240 bfd_vma addr = (toc_section->output_section->vma
1241 + toc_section->output_offset + our_toc_offset);
1243 if (!write_base_file_entry (output_bfd, info, addr))
1247 /* FIXME: this test is conservative. */
1248 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN
1249 && (bfd_vma) our_toc_offset > toc_section->size)
1251 (*_bfd_error_handler)
1252 (_("%B: Relocation exceeds allocated TOC (%lx)"),
1253 input_bfd, (unsigned long) toc_section->size);
1254 bfd_set_error (bfd_error_bad_value);
1258 /* Now we know the relocation for this toc reference. */
1259 relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT;
1260 rstat = _bfd_relocate_contents (howto, input_bfd, relocation, loc);
1263 case IMAGE_REL_PPC_IFGLUE:
1265 /* To solve this, we need to know whether or not the symbol
1266 appearing on the call instruction is a glue function or not.
1267 A glue function must announce itself via a IMGLUE reloc, and
1268 the reloc contains the required toc restore instruction. */
1269 DUMP_RELOC2 (howto->name, rel);
1273 if (h->symbol_is_glue == 1)
1275 bfd_put_32 (input_bfd, (bfd_vma) h->glue_insn, loc);
1280 case IMAGE_REL_PPC_SECREL:
1281 /* Unimplemented: codeview debugging information. */
1282 /* For fast access to the header of the section
1283 containing the item. */
1285 case IMAGE_REL_PPC_SECTION:
1286 /* Unimplemented: codeview debugging information. */
1287 /* Is used to indicate that the value should be relative
1288 to the beginning of the section that contains the
1291 case IMAGE_REL_PPC_ABSOLUTE:
1293 const char *my_name;
1296 my_name = (syms+symndx)->_n._n_name;
1298 my_name = h->root.root.root.string;
1300 (*_bfd_error_handler)
1301 (_("Warning: unsupported reloc %s <file %B, section %A>\n"
1302 "sym %ld (%s), r_vaddr %ld (%lx)"),
1303 input_bfd, input_section, howto->name,
1304 rel->r_symndx, my_name, (long) rel->r_vaddr,
1305 (unsigned long) rel->r_vaddr);
1308 case IMAGE_REL_PPC_IMGLUE:
1310 /* There is nothing to do now. This reloc was noted in the first
1311 pass over the relocs, and the glue instruction extracted. */
1312 const char *my_name;
1314 if (h->symbol_is_glue == 1)
1316 my_name = h->root.root.root.string;
1318 (*_bfd_error_handler)
1319 (_("%B: Out of order IMGLUE reloc for %s"), input_bfd, my_name);
1320 bfd_set_error (bfd_error_bad_value);
1324 case IMAGE_REL_PPC_ADDR32NB:
1326 const char *name = 0;
1328 DUMP_RELOC2 (howto->name, rel);
1330 if (CONST_STRNEQ (input_section->name, ".idata$2") && first_thunk_address == 0)
1332 /* Set magic values. */
1334 struct coff_link_hash_entry *myh;
1336 myh = coff_link_hash_lookup (coff_hash_table (info),
1338 FALSE, FALSE, TRUE);
1339 first_thunk_address = myh->root.u.def.value +
1340 sec->output_section->vma +
1341 sec->output_offset -
1342 pe_data(output_bfd)->pe_opthdr.ImageBase;
1344 idata5offset = myh->root.u.def.value;
1345 myh = coff_link_hash_lookup (coff_hash_table (info),
1347 FALSE, FALSE, TRUE);
1349 thunk_size = myh->root.u.def.value - idata5offset;
1350 myh = coff_link_hash_lookup (coff_hash_table (info),
1352 FALSE, FALSE, TRUE);
1353 import_table_size = myh->root.u.def.value;
1358 /* It is a file local symbol. */
1359 sym = syms + symndx;
1360 name = sym->_n._n_name;
1366 name = h->root.root.root.string;
1367 if (strcmp (".idata$2", name) == 0)
1368 target = "__idata2_magic__";
1369 else if (strcmp (".idata$4", name) == 0)
1370 target = "__idata4_magic__";
1371 else if (strcmp (".idata$5", name) == 0)
1372 target = "__idata5_magic__";
1376 struct coff_link_hash_entry *myh;
1378 myh = coff_link_hash_lookup (coff_hash_table (info),
1380 FALSE, FALSE, TRUE);
1383 /* Missing magic cookies. Something is very wrong. */
1387 val = myh->root.u.def.value +
1388 sec->output_section->vma + sec->output_offset;
1389 if (first_thunk_address == 0)
1392 myh = coff_link_hash_lookup (coff_hash_table (info),
1394 FALSE, FALSE, TRUE);
1395 first_thunk_address = myh->root.u.def.value +
1396 sec->output_section->vma +
1397 sec->output_offset -
1398 pe_data(output_bfd)->pe_opthdr.ImageBase;
1400 idata5offset = myh->root.u.def.value;
1401 myh = coff_link_hash_lookup (coff_hash_table (info),
1403 FALSE, FALSE, TRUE);
1405 thunk_size = myh->root.u.def.value - idata5offset;
1406 myh = coff_link_hash_lookup (coff_hash_table (info),
1408 FALSE, FALSE, TRUE);
1409 import_table_size = myh->root.u.def.value;
1414 rstat = _bfd_relocate_contents (howto,
1417 pe_data (output_bfd)->pe_opthdr.ImageBase,
1422 case IMAGE_REL_PPC_REL24:
1423 DUMP_RELOC2(howto->name, rel);
1424 val -= (input_section->output_section->vma
1425 + input_section->output_offset);
1427 rstat = _bfd_relocate_contents (howto,
1432 case IMAGE_REL_PPC_ADDR16:
1433 case IMAGE_REL_PPC_ADDR24:
1434 case IMAGE_REL_PPC_ADDR32:
1435 DUMP_RELOC2(howto->name, rel);
1436 rstat = _bfd_relocate_contents (howto,
1443 if (info->base_file)
1445 /* So if this is non pcrelative, and is referenced
1446 to a section or a common symbol, then it needs a reloc. */
1447 if (sym && pe_data(output_bfd)->in_reloc_p (output_bfd, howto))
1449 /* Relocation to a symbol in a section which
1450 isn't absolute - we output the address here
1452 bfd_vma addr = (rel->r_vaddr
1453 - input_section->vma
1454 + input_section->output_offset
1455 + input_section->output_section->vma);
1457 if (!write_base_file_entry (output_bfd, info, addr))
1468 case bfd_reloc_overflow:
1471 char buf[SYMNMLEN + 1];
1477 else if (sym == NULL)
1479 else if (sym->_n._n_n._n_zeroes == 0
1480 && sym->_n._n_n._n_offset != 0)
1481 name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
1484 strncpy (buf, sym->_n._n_name, SYMNMLEN);
1485 buf[SYMNMLEN] = '\0';
1489 if (! ((*info->callbacks->reloc_overflow)
1490 (info, (h ? &h->root.root : NULL), name, howto->name,
1491 (bfd_vma) 0, input_bfd,
1492 input_section, rel->r_vaddr - input_section->vma)))
1501 #ifdef COFF_IMAGE_WITH_PE
1503 /* FIXME: BFD should not use global variables. This file is compiled
1504 twice, and these variables are shared. This is confusing and
1507 long int global_toc_size = 4;
1509 bfd* bfd_of_toc_owner = 0;
1511 long int import_table_size;
1512 long int first_thunk_address;
1513 long int thunk_size;
1515 struct list_ele *head;
1516 struct list_ele *tail;
1519 h1 = N_("\n\t\t\tTOC MAPPING\n\n");
1521 h2 = N_(" TOC disassembly Comments Name\n");
1523 h3 = N_(" Offset spelling (if present)\n");
1529 FILE *file = (FILE *) vfile;
1532 fputs (_(h1), file);
1533 fputs (_(h2), file);
1534 fputs (_(h3), file);
1536 for (t = head; t != 0; t=t->next)
1538 const char *cat = "";
1541 cat = _("private ");
1542 else if (t->cat == pub)
1544 else if (t->cat == tocdata)
1545 cat = _("data-in-toc ");
1547 if (t->offset > global_toc_size)
1549 if (t->offset <= global_toc_size + thunk_size)
1550 cat = _("IAT reference ");
1554 _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"),
1555 global_toc_size, (unsigned long) global_toc_size,
1556 thunk_size, (unsigned long) thunk_size);
1557 cat = _("Out of bounds!");
1562 " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768);
1569 fprintf (file, "\n");
1573 ppc_allocate_toc_section (info)
1574 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1579 static char test_char = '1';
1581 if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */
1584 if (bfd_of_toc_owner == 0)
1585 /* No toc owner? Something is very wrong. */
1588 s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME);
1590 /* No toc section? Something is very wrong. */
1593 amt = global_toc_size;
1594 foo = (bfd_byte *) bfd_alloc (bfd_of_toc_owner, amt);
1595 memset(foo, test_char, (size_t) global_toc_size);
1597 s->size = global_toc_size;
1604 ppc_process_before_allocation (abfd, info)
1606 struct bfd_link_info *info;
1609 struct internal_reloc *i, *rel;
1611 /* Here we have a bfd that is to be included on the link. We have a hook
1612 to do reloc rummaging, before section sizes are nailed down. */
1613 _bfd_coff_get_external_symbols (abfd);
1615 /* Rummage around all the relocs and map the toc. */
1616 sec = abfd->sections;
1621 for (; sec != 0; sec = sec->next)
1623 if (sec->reloc_count == 0)
1626 /* load the relocs */
1627 /* FIXME: there may be a storage leak here */
1628 i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0);
1633 for (rel = i; rel < i + sec->reloc_count; ++rel)
1635 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1636 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type);
1637 bfd_boolean ok = TRUE;
1639 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, rel);
1643 case IMAGE_REL_PPC_TOCREL16:
1644 /* If TOCDEFN is on, ignore as someone else has allocated the
1646 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN)
1647 ok = ppc_record_toc_entry(abfd, info, sec,
1648 rel->r_symndx, default_toc);
1652 case IMAGE_REL_PPC_IMGLUE:
1653 ppc_mark_symbol_as_glue (abfd, rel->r_symndx, rel);
1666 static bfd_reloc_status_type
1667 ppc_refhi_reloc (abfd, reloc_entry, symbol, data,
1668 input_section, output_bfd, error_message)
1669 bfd *abfd ATTRIBUTE_UNUSED;
1670 arelent *reloc_entry ATTRIBUTE_UNUSED;
1671 asymbol *symbol ATTRIBUTE_UNUSED;
1672 PTR data ATTRIBUTE_UNUSED;
1673 asection *input_section ATTRIBUTE_UNUSED;
1675 char **error_message ATTRIBUTE_UNUSED;
1678 DUMP_RELOC("REFHI",reloc_entry);
1680 if (output_bfd == (bfd *) NULL)
1681 return bfd_reloc_continue;
1683 return bfd_reloc_undefined;
1686 static bfd_reloc_status_type
1687 ppc_pair_reloc (abfd, reloc_entry, symbol, data,
1688 input_section, output_bfd, error_message)
1689 bfd *abfd ATTRIBUTE_UNUSED;
1690 arelent *reloc_entry ATTRIBUTE_UNUSED;
1691 asymbol *symbol ATTRIBUTE_UNUSED;
1692 PTR data ATTRIBUTE_UNUSED;
1693 asection *input_section ATTRIBUTE_UNUSED;
1695 char **error_message ATTRIBUTE_UNUSED;
1698 DUMP_RELOC("PAIR",reloc_entry);
1700 if (output_bfd == (bfd *) NULL)
1701 return bfd_reloc_continue;
1703 return bfd_reloc_undefined;
1706 static bfd_reloc_status_type
1707 ppc_toc16_reloc (abfd, reloc_entry, symbol, data,
1708 input_section, output_bfd, error_message)
1709 bfd *abfd ATTRIBUTE_UNUSED;
1710 arelent *reloc_entry ATTRIBUTE_UNUSED;
1711 asymbol *symbol ATTRIBUTE_UNUSED;
1712 PTR data ATTRIBUTE_UNUSED;
1713 asection *input_section ATTRIBUTE_UNUSED;
1715 char **error_message ATTRIBUTE_UNUSED;
1717 UN_IMPL ("TOCREL16");
1718 DUMP_RELOC ("TOCREL16",reloc_entry);
1720 if (output_bfd == (bfd *) NULL)
1721 return bfd_reloc_continue;
1723 return bfd_reloc_ok;
1726 static bfd_reloc_status_type
1727 ppc_secrel_reloc (abfd, reloc_entry, symbol, data,
1728 input_section, output_bfd, error_message)
1729 bfd *abfd ATTRIBUTE_UNUSED;
1730 arelent *reloc_entry ATTRIBUTE_UNUSED;
1731 asymbol *symbol ATTRIBUTE_UNUSED;
1732 PTR data ATTRIBUTE_UNUSED;
1733 asection *input_section ATTRIBUTE_UNUSED;
1735 char **error_message ATTRIBUTE_UNUSED;
1738 DUMP_RELOC("SECREL",reloc_entry);
1740 if (output_bfd == (bfd *) NULL)
1741 return bfd_reloc_continue;
1743 return bfd_reloc_ok;
1746 static bfd_reloc_status_type
1747 ppc_section_reloc (abfd, reloc_entry, symbol, data,
1748 input_section, output_bfd, error_message)
1749 bfd *abfd ATTRIBUTE_UNUSED;
1750 arelent *reloc_entry ATTRIBUTE_UNUSED;
1751 asymbol *symbol ATTRIBUTE_UNUSED;
1752 PTR data ATTRIBUTE_UNUSED;
1753 asection *input_section ATTRIBUTE_UNUSED;
1755 char **error_message ATTRIBUTE_UNUSED;
1758 DUMP_RELOC("SECTION",reloc_entry);
1760 if (output_bfd == (bfd *) NULL)
1761 return bfd_reloc_continue;
1763 return bfd_reloc_ok;
1766 static bfd_reloc_status_type
1767 ppc_imglue_reloc (abfd, reloc_entry, symbol, data,
1768 input_section, output_bfd, error_message)
1769 bfd *abfd ATTRIBUTE_UNUSED;
1770 arelent *reloc_entry ATTRIBUTE_UNUSED;
1771 asymbol *symbol ATTRIBUTE_UNUSED;
1772 PTR data ATTRIBUTE_UNUSED;
1773 asection *input_section ATTRIBUTE_UNUSED;
1775 char **error_message ATTRIBUTE_UNUSED;
1778 DUMP_RELOC("IMGLUE",reloc_entry);
1780 if (output_bfd == (bfd *) NULL)
1781 return bfd_reloc_continue;
1783 return bfd_reloc_ok;
1786 #define MAX_RELOC_INDEX \
1787 (sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]) - 1)
1789 /* FIXME: There is a possibility that when we read in a reloc from a file,
1790 that there are some bits encoded in the upper portion of the
1791 type field. Not yet implemented. */
1792 static void ppc_coff_rtype2howto PARAMS ((arelent *, struct internal_reloc *));
1795 ppc_coff_rtype2howto (relent, internal)
1797 struct internal_reloc *internal;
1799 /* We can encode one of three things in the type field, aside from the
1801 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
1802 value, rather than an addition value
1803 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
1804 the branch is expected to be taken or not.
1805 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
1806 For now, we just strip this stuff to find the type, and ignore it other
1808 reloc_howto_type *howto;
1809 unsigned short r_type = EXTRACT_TYPE (internal->r_type);
1810 unsigned short r_flags = EXTRACT_FLAGS(internal->r_type);
1811 unsigned short junk = EXTRACT_JUNK (internal->r_type);
1813 /* The masking process only slices off the bottom byte for r_type. */
1814 if ( r_type > MAX_RELOC_INDEX )
1817 /* Check for absolute crap. */
1823 case IMAGE_REL_PPC_ADDR16:
1824 case IMAGE_REL_PPC_REL24:
1825 case IMAGE_REL_PPC_ADDR24:
1826 case IMAGE_REL_PPC_ADDR32:
1827 case IMAGE_REL_PPC_IFGLUE:
1828 case IMAGE_REL_PPC_ADDR32NB:
1829 case IMAGE_REL_PPC_SECTION:
1830 case IMAGE_REL_PPC_SECREL:
1831 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1832 howto = ppc_coff_howto_table + r_type;
1834 case IMAGE_REL_PPC_IMGLUE:
1835 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1836 howto = ppc_coff_howto_table + r_type;
1838 case IMAGE_REL_PPC_TOCREL16:
1839 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1840 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
1841 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
1843 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
1846 (*_bfd_error_handler) (_("warning: unsupported reloc %s [%d] used -- it may not work"),
1847 ppc_coff_howto_table[r_type].name,
1849 howto = ppc_coff_howto_table + r_type;
1853 relent->howto = howto;
1856 static reloc_howto_type *
1857 coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
1858 bfd *abfd ATTRIBUTE_UNUSED;
1860 struct internal_reloc *rel;
1861 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
1862 struct internal_syment *sym ATTRIBUTE_UNUSED;
1865 reloc_howto_type *howto;
1867 /* We can encode one of three things in the type field, aside from the
1869 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
1870 value, rather than an addition value
1871 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
1872 the branch is expected to be taken or not.
1873 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
1874 For now, we just strip this stuff to find the type, and ignore it other
1877 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1878 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type);
1879 unsigned short junk = EXTRACT_JUNK (rel->r_type);
1881 /* The masking process only slices off the bottom byte for r_type. */
1882 if (r_type > MAX_RELOC_INDEX)
1885 /* Check for absolute crap. */
1891 case IMAGE_REL_PPC_ADDR32NB:
1892 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1893 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
1894 howto = ppc_coff_howto_table + r_type;
1896 case IMAGE_REL_PPC_TOCREL16:
1897 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1898 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
1899 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
1901 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
1903 case IMAGE_REL_PPC_ADDR16:
1904 case IMAGE_REL_PPC_REL24:
1905 case IMAGE_REL_PPC_ADDR24:
1906 case IMAGE_REL_PPC_ADDR32:
1907 case IMAGE_REL_PPC_IFGLUE:
1908 case IMAGE_REL_PPC_SECTION:
1909 case IMAGE_REL_PPC_SECREL:
1910 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1911 howto = ppc_coff_howto_table + r_type;
1913 case IMAGE_REL_PPC_IMGLUE:
1914 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1915 howto = ppc_coff_howto_table + r_type;
1918 (*_bfd_error_handler) (_("warning: unsupported reloc %s [%d] used -- it may not work"),
1919 ppc_coff_howto_table[r_type].name,
1921 howto = ppc_coff_howto_table + r_type;
1928 /* A cheesy little macro to make the code a little more readable. */
1929 #define HOW2MAP(bfd_rtype,ppc_rtype) \
1930 case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype]
1932 static reloc_howto_type *ppc_coff_reloc_type_lookup
1933 PARAMS ((bfd *, bfd_reloc_code_real_type));
1935 static reloc_howto_type *
1936 ppc_coff_reloc_type_lookup (abfd, code)
1937 bfd *abfd ATTRIBUTE_UNUSED;
1938 bfd_reloc_code_real_type code;
1942 HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE);
1943 HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE);
1944 HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16);
1945 HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24);
1946 HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24);
1947 HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16);
1948 HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN);
1949 HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32);
1950 HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB);
1957 static reloc_howto_type *
1958 ppc_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1964 i < sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]);
1966 if (ppc_coff_howto_table[i].name != NULL
1967 && strcasecmp (ppc_coff_howto_table[i].name, r_name) == 0)
1968 return &ppc_coff_howto_table[i];
1973 /* Tailor coffcode.h -- macro heaven. */
1975 #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst)
1977 /* We use the special COFF backend linker, with our own special touch. */
1979 #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup
1980 #define coff_bfd_reloc_name_lookup ppc_coff_reloc_name_lookup
1981 #define coff_rtype_to_howto coff_ppc_rtype_to_howto
1982 #define coff_relocate_section coff_ppc_relocate_section
1983 #define coff_bfd_final_link ppc_bfd_coff_final_link
1985 #ifndef COFF_IMAGE_WITH_PE
1988 #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;}
1990 #define COFF_PAGE_SIZE 0x1000
1992 /* FIXME: This controls some code that used to be in peicode.h and is
1993 now in peigen.c. It will not control the code in peigen.c. If
1994 anybody wants to get this working, you will need to fix that. */
1995 #define POWERPC_LE_PE
1997 #define COFF_SECTION_ALIGNMENT_ENTRIES \
1998 { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \
1999 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2000 { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \
2001 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2002 { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \
2003 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2004 { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \
2005 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2006 { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \
2007 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \
2008 { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \
2009 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }
2011 #include "coffcode.h"
2013 #ifndef COFF_IMAGE_WITH_PE
2015 static bfd_boolean ppc_do_last PARAMS ((bfd *));
2016 static bfd *ppc_get_last PARAMS ((void));
2022 if (abfd == bfd_of_toc_owner)
2031 return bfd_of_toc_owner;
2034 /* This piece of machinery exists only to guarantee that the bfd that holds
2035 the toc section is written last.
2037 This does depend on bfd_make_section attaching a new section to the
2038 end of the section list for the bfd.
2040 This is otherwise intended to be functionally the same as
2041 cofflink.c:_bfd_coff_final_link(). It is specifically different only
2042 where the POWERPC_LE_PE macro modifies the code. It is left in as a
2043 precise form of comment. krk@cygnus.com */
2045 /* Do the final link step. */
2048 ppc_bfd_coff_final_link (abfd, info)
2050 struct bfd_link_info *info;
2052 bfd_size_type symesz;
2053 struct coff_final_link_info flaginfo;
2054 bfd_boolean debug_merge_allocated;
2056 struct bfd_link_order *p;
2057 bfd_size_type max_sym_count;
2058 bfd_size_type max_lineno_count;
2059 bfd_size_type max_reloc_count;
2060 bfd_size_type max_output_reloc_count;
2061 bfd_size_type max_contents_size;
2062 file_ptr rel_filepos;
2064 file_ptr line_filepos;
2065 unsigned int linesz;
2067 bfd_byte *external_relocs = NULL;
2068 char strbuf[STRING_SIZE_SIZE];
2071 symesz = bfd_coff_symesz (abfd);
2073 flaginfo.info = info;
2074 flaginfo.output_bfd = abfd;
2075 flaginfo.strtab = NULL;
2076 flaginfo.section_info = NULL;
2077 flaginfo.last_file_index = -1;
2078 flaginfo.last_bf_index = -1;
2079 flaginfo.internal_syms = NULL;
2080 flaginfo.sec_ptrs = NULL;
2081 flaginfo.sym_indices = NULL;
2082 flaginfo.outsyms = NULL;
2083 flaginfo.linenos = NULL;
2084 flaginfo.contents = NULL;
2085 flaginfo.external_relocs = NULL;
2086 flaginfo.internal_relocs = NULL;
2087 debug_merge_allocated = FALSE;
2089 coff_data (abfd)->link_info = info;
2091 flaginfo.strtab = _bfd_stringtab_init ();
2092 if (flaginfo.strtab == NULL)
2095 if (! coff_debug_merge_hash_table_init (&flaginfo.debug_merge))
2097 debug_merge_allocated = TRUE;
2099 /* Compute the file positions for all the sections. */
2100 if (! abfd->output_has_begun)
2102 if (! bfd_coff_compute_section_file_positions (abfd))
2106 /* Count the line numbers and relocation entries required for the
2107 output file. Set the file positions for the relocs. */
2108 rel_filepos = obj_relocbase (abfd);
2109 relsz = bfd_coff_relsz (abfd);
2110 max_contents_size = 0;
2111 max_lineno_count = 0;
2112 max_reloc_count = 0;
2114 for (o = abfd->sections; o != NULL; o = o->next)
2117 o->lineno_count = 0;
2119 for (p = o->map_head.link_order; p != NULL; p = p->next)
2121 if (p->type == bfd_indirect_link_order)
2125 sec = p->u.indirect.section;
2127 /* Mark all sections which are to be included in the
2128 link. This will normally be every section. We need
2129 to do this so that we can identify any sections which
2130 the linker has decided to not include. */
2131 sec->linker_mark = TRUE;
2133 if (info->strip == strip_none
2134 || info->strip == strip_some)
2135 o->lineno_count += sec->lineno_count;
2137 if (info->relocatable)
2138 o->reloc_count += sec->reloc_count;
2140 if (sec->rawsize > max_contents_size)
2141 max_contents_size = sec->rawsize;
2142 if (sec->size > max_contents_size)
2143 max_contents_size = sec->size;
2144 if (sec->lineno_count > max_lineno_count)
2145 max_lineno_count = sec->lineno_count;
2146 if (sec->reloc_count > max_reloc_count)
2147 max_reloc_count = sec->reloc_count;
2149 else if (info->relocatable
2150 && (p->type == bfd_section_reloc_link_order
2151 || p->type == bfd_symbol_reloc_link_order))
2154 if (o->reloc_count == 0)
2158 o->flags |= SEC_RELOC;
2159 o->rel_filepos = rel_filepos;
2160 rel_filepos += o->reloc_count * relsz;
2164 /* If doing a relocatable link, allocate space for the pointers we
2166 if (info->relocatable)
2170 /* We use section_count + 1, rather than section_count, because
2171 the target_index fields are 1 based. */
2172 amt = abfd->section_count + 1;
2173 amt *= sizeof (struct coff_link_section_info);
2174 flaginfo.section_info = (struct coff_link_section_info *) bfd_malloc (amt);
2176 if (flaginfo.section_info == NULL)
2179 for (i = 0; i <= abfd->section_count; i++)
2181 flaginfo.section_info[i].relocs = NULL;
2182 flaginfo.section_info[i].rel_hashes = NULL;
2186 /* We now know the size of the relocs, so we can determine the file
2187 positions of the line numbers. */
2188 line_filepos = rel_filepos;
2189 linesz = bfd_coff_linesz (abfd);
2190 max_output_reloc_count = 0;
2192 for (o = abfd->sections; o != NULL; o = o->next)
2194 if (o->lineno_count == 0)
2195 o->line_filepos = 0;
2198 o->line_filepos = line_filepos;
2199 line_filepos += o->lineno_count * linesz;
2202 if (o->reloc_count != 0)
2204 /* We don't know the indices of global symbols until we have
2205 written out all the local symbols. For each section in
2206 the output file, we keep an array of pointers to hash
2207 table entries. Each entry in the array corresponds to a
2208 reloc. When we find a reloc against a global symbol, we
2209 set the corresponding entry in this array so that we can
2210 fix up the symbol index after we have written out all the
2213 Because of this problem, we also keep the relocs in
2214 memory until the end of the link. This wastes memory,
2215 but only when doing a relocatable link, which is not the
2217 BFD_ASSERT (info->relocatable);
2218 amt = o->reloc_count;
2219 amt *= sizeof (struct internal_reloc);
2220 flaginfo.section_info[o->target_index].relocs =
2221 (struct internal_reloc *) bfd_malloc (amt);
2222 amt = o->reloc_count;
2223 amt *= sizeof (struct coff_link_hash_entry *);
2224 flaginfo.section_info[o->target_index].rel_hashes =
2225 (struct coff_link_hash_entry **) bfd_malloc (amt);
2226 if (flaginfo.section_info[o->target_index].relocs == NULL
2227 || flaginfo.section_info[o->target_index].rel_hashes == NULL)
2230 if (o->reloc_count > max_output_reloc_count)
2231 max_output_reloc_count = o->reloc_count;
2234 /* Reset the reloc and lineno counts, so that we can use them to
2235 count the number of entries we have output so far. */
2237 o->lineno_count = 0;
2240 obj_sym_filepos (abfd) = line_filepos;
2242 /* Figure out the largest number of symbols in an input BFD. Take
2243 the opportunity to clear the output_has_begun fields of all the
2246 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
2250 sub->output_has_begun = FALSE;
2251 sz = obj_raw_syment_count (sub);
2252 if (sz > max_sym_count)
2256 /* Allocate some buffers used while linking. */
2257 amt = max_sym_count * sizeof (struct internal_syment);
2258 flaginfo.internal_syms = (struct internal_syment *) bfd_malloc (amt);
2259 amt = max_sym_count * sizeof (asection *);
2260 flaginfo.sec_ptrs = (asection **) bfd_malloc (amt);
2261 amt = max_sym_count * sizeof (long);
2262 flaginfo.sym_indices = (long *) bfd_malloc (amt);
2263 amt = (max_sym_count + 1) * symesz;
2264 flaginfo.outsyms = (bfd_byte *) bfd_malloc (amt);
2265 amt = max_lineno_count * bfd_coff_linesz (abfd);
2266 flaginfo.linenos = (bfd_byte *) bfd_malloc (amt);
2267 flaginfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
2268 flaginfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
2269 if (! info->relocatable)
2271 amt = max_reloc_count * sizeof (struct internal_reloc);
2272 flaginfo.internal_relocs = (struct internal_reloc *) bfd_malloc (amt);
2274 if ((flaginfo.internal_syms == NULL && max_sym_count > 0)
2275 || (flaginfo.sec_ptrs == NULL && max_sym_count > 0)
2276 || (flaginfo.sym_indices == NULL && max_sym_count > 0)
2277 || flaginfo.outsyms == NULL
2278 || (flaginfo.linenos == NULL && max_lineno_count > 0)
2279 || (flaginfo.contents == NULL && max_contents_size > 0)
2280 || (flaginfo.external_relocs == NULL && max_reloc_count > 0)
2281 || (! info->relocatable
2282 && flaginfo.internal_relocs == NULL
2283 && max_reloc_count > 0))
2286 /* We now know the position of everything in the file, except that
2287 we don't know the size of the symbol table and therefore we don't
2288 know where the string table starts. We just build the string
2289 table in memory as we go along. We process all the relocations
2290 for a single input file at once. */
2291 obj_raw_syment_count (abfd) = 0;
2293 if (coff_backend_info (abfd)->_bfd_coff_start_final_link)
2295 if (! bfd_coff_start_final_link (abfd, info))
2299 for (o = abfd->sections; o != NULL; o = o->next)
2301 for (p = o->map_head.link_order; p != NULL; p = p->next)
2303 if (p->type == bfd_indirect_link_order
2304 && (bfd_get_flavour (p->u.indirect.section->owner)
2305 == bfd_target_coff_flavour))
2307 sub = p->u.indirect.section->owner;
2308 #ifdef POWERPC_LE_PE
2309 if (! sub->output_has_begun && !ppc_do_last(sub))
2311 if (! sub->output_has_begun)
2314 if (! _bfd_coff_link_input_bfd (&flaginfo, sub))
2316 sub->output_has_begun = TRUE;
2319 else if (p->type == bfd_section_reloc_link_order
2320 || p->type == bfd_symbol_reloc_link_order)
2322 if (! _bfd_coff_reloc_link_order (abfd, &flaginfo, o, p))
2327 if (! _bfd_default_link_order (abfd, info, o, p))
2333 #ifdef POWERPC_LE_PE
2335 bfd* last_one = ppc_get_last();
2338 if (! _bfd_coff_link_input_bfd (&flaginfo, last_one))
2341 last_one->output_has_begun = TRUE;
2345 /* Free up the buffers used by _bfd_coff_link_input_bfd. */
2346 coff_debug_merge_hash_table_free (&flaginfo.debug_merge);
2347 debug_merge_allocated = FALSE;
2349 if (flaginfo.internal_syms != NULL)
2351 free (flaginfo.internal_syms);
2352 flaginfo.internal_syms = NULL;
2354 if (flaginfo.sec_ptrs != NULL)
2356 free (flaginfo.sec_ptrs);
2357 flaginfo.sec_ptrs = NULL;
2359 if (flaginfo.sym_indices != NULL)
2361 free (flaginfo.sym_indices);
2362 flaginfo.sym_indices = NULL;
2364 if (flaginfo.linenos != NULL)
2366 free (flaginfo.linenos);
2367 flaginfo.linenos = NULL;
2369 if (flaginfo.contents != NULL)
2371 free (flaginfo.contents);
2372 flaginfo.contents = NULL;
2374 if (flaginfo.external_relocs != NULL)
2376 free (flaginfo.external_relocs);
2377 flaginfo.external_relocs = NULL;
2379 if (flaginfo.internal_relocs != NULL)
2381 free (flaginfo.internal_relocs);
2382 flaginfo.internal_relocs = NULL;
2385 /* The value of the last C_FILE symbol is supposed to be the symbol
2386 index of the first external symbol. Write it out again if
2388 if (flaginfo.last_file_index != -1
2389 && (unsigned int) flaginfo.last_file.n_value != obj_raw_syment_count (abfd))
2393 flaginfo.last_file.n_value = obj_raw_syment_count (abfd);
2394 bfd_coff_swap_sym_out (abfd, (PTR) &flaginfo.last_file,
2395 (PTR) flaginfo.outsyms);
2396 pos = obj_sym_filepos (abfd) + flaginfo.last_file_index * symesz;
2397 if (bfd_seek (abfd, pos, SEEK_SET) != 0
2398 || bfd_bwrite (flaginfo.outsyms, symesz, abfd) != symesz)
2402 /* Write out the global symbols. */
2403 flaginfo.failed = FALSE;
2404 bfd_hash_traverse (&info->hash->table, _bfd_coff_write_global_sym, &flaginfo);
2405 if (flaginfo.failed)
2408 /* The outsyms buffer is used by _bfd_coff_write_global_sym. */
2409 if (flaginfo.outsyms != NULL)
2411 free (flaginfo.outsyms);
2412 flaginfo.outsyms = NULL;
2415 if (info->relocatable)
2417 /* Now that we have written out all the global symbols, we know
2418 the symbol indices to use for relocs against them, and we can
2419 finally write out the relocs. */
2420 amt = max_output_reloc_count * relsz;
2421 external_relocs = (bfd_byte *) bfd_malloc (amt);
2422 if (external_relocs == NULL)
2425 for (o = abfd->sections; o != NULL; o = o->next)
2427 struct internal_reloc *irel;
2428 struct internal_reloc *irelend;
2429 struct coff_link_hash_entry **rel_hash;
2432 if (o->reloc_count == 0)
2435 irel = flaginfo.section_info[o->target_index].relocs;
2436 irelend = irel + o->reloc_count;
2437 rel_hash = flaginfo.section_info[o->target_index].rel_hashes;
2438 erel = external_relocs;
2439 for (; irel < irelend; irel++, rel_hash++, erel += relsz)
2441 if (*rel_hash != NULL)
2443 BFD_ASSERT ((*rel_hash)->indx >= 0);
2444 irel->r_symndx = (*rel_hash)->indx;
2446 bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
2449 amt = relsz * o->reloc_count;
2450 if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
2451 || bfd_bwrite ((PTR) external_relocs, amt, abfd) != amt)
2455 free (external_relocs);
2456 external_relocs = NULL;
2459 /* Free up the section information. */
2460 if (flaginfo.section_info != NULL)
2464 for (i = 0; i < abfd->section_count; i++)
2466 if (flaginfo.section_info[i].relocs != NULL)
2467 free (flaginfo.section_info[i].relocs);
2468 if (flaginfo.section_info[i].rel_hashes != NULL)
2469 free (flaginfo.section_info[i].rel_hashes);
2471 free (flaginfo.section_info);
2472 flaginfo.section_info = NULL;
2475 /* If we have optimized stabs strings, output them. */
2476 if (coff_hash_table (info)->stab_info.stabstr != NULL)
2478 if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info))
2482 /* Write out the string table. */
2483 if (obj_raw_syment_count (abfd) != 0)
2487 pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz;
2488 if (bfd_seek (abfd, pos, SEEK_SET) != 0)
2491 #if STRING_SIZE_SIZE == 4
2493 _bfd_stringtab_size (flaginfo.strtab) + STRING_SIZE_SIZE,
2496 #error Change H_PUT_32 above
2499 if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE, abfd)
2500 != STRING_SIZE_SIZE)
2503 if (! _bfd_stringtab_emit (abfd, flaginfo.strtab))
2507 _bfd_stringtab_free (flaginfo.strtab);
2509 /* Setting bfd_get_symcount to 0 will cause write_object_contents to
2510 not try to write out the symbols. */
2511 bfd_get_symcount (abfd) = 0;
2516 if (debug_merge_allocated)
2517 coff_debug_merge_hash_table_free (&flaginfo.debug_merge);
2518 if (flaginfo.strtab != NULL)
2519 _bfd_stringtab_free (flaginfo.strtab);
2520 if (flaginfo.section_info != NULL)
2524 for (i = 0; i < abfd->section_count; i++)
2526 if (flaginfo.section_info[i].relocs != NULL)
2527 free (flaginfo.section_info[i].relocs);
2528 if (flaginfo.section_info[i].rel_hashes != NULL)
2529 free (flaginfo.section_info[i].rel_hashes);
2531 free (flaginfo.section_info);
2533 if (flaginfo.internal_syms != NULL)
2534 free (flaginfo.internal_syms);
2535 if (flaginfo.sec_ptrs != NULL)
2536 free (flaginfo.sec_ptrs);
2537 if (flaginfo.sym_indices != NULL)
2538 free (flaginfo.sym_indices);
2539 if (flaginfo.outsyms != NULL)
2540 free (flaginfo.outsyms);
2541 if (flaginfo.linenos != NULL)
2542 free (flaginfo.linenos);
2543 if (flaginfo.contents != NULL)
2544 free (flaginfo.contents);
2545 if (flaginfo.external_relocs != NULL)
2546 free (flaginfo.external_relocs);
2547 if (flaginfo.internal_relocs != NULL)
2548 free (flaginfo.internal_relocs);
2549 if (external_relocs != NULL)
2550 free (external_relocs);
2555 /* Forward declaration for use by alternative_target field. */
2556 #ifdef TARGET_BIG_SYM
2557 extern const bfd_target TARGET_BIG_SYM;
2560 /* The transfer vectors that lead the outside world to all of the above. */
2562 #ifdef TARGET_LITTLE_SYM
2563 const bfd_target TARGET_LITTLE_SYM =
2565 TARGET_LITTLE_NAME, /* name or coff-arm-little */
2566 bfd_target_coff_flavour,
2567 BFD_ENDIAN_LITTLE, /* data byte order is little */
2568 BFD_ENDIAN_LITTLE, /* header byte order is little */
2570 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2571 HAS_LINENO | HAS_DEBUG |
2572 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2574 #ifndef COFF_WITH_PE
2575 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2577 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2578 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2581 0, /* leading char */
2582 '/', /* ar_pad_char */
2583 15, /* ar_max_namelen??? FIXMEmgo */
2584 0, /* match priority. */
2586 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2587 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2588 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
2590 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2591 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2592 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
2594 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2595 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2596 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2598 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2599 _bfd_write_archive_contents, bfd_false},
2601 BFD_JUMP_TABLE_GENERIC (coff),
2602 BFD_JUMP_TABLE_COPY (coff),
2603 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2604 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2605 BFD_JUMP_TABLE_SYMBOLS (coff),
2606 BFD_JUMP_TABLE_RELOCS (coff),
2607 BFD_JUMP_TABLE_WRITE (coff),
2608 BFD_JUMP_TABLE_LINK (coff),
2609 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2611 /* Alternative_target. */
2612 #ifdef TARGET_BIG_SYM
2622 #ifdef TARGET_BIG_SYM
2623 const bfd_target TARGET_BIG_SYM =
2626 bfd_target_coff_flavour,
2627 BFD_ENDIAN_BIG, /* data byte order is big */
2628 BFD_ENDIAN_BIG, /* header byte order is big */
2630 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2631 HAS_LINENO | HAS_DEBUG |
2632 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2634 #ifndef COFF_WITH_PE
2635 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2637 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2638 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2641 0, /* leading char */
2642 '/', /* ar_pad_char */
2643 15, /* ar_max_namelen??? FIXMEmgo */
2644 0, /* match priority. */
2646 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2647 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2648 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
2650 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2651 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2652 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
2654 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2655 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2656 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2658 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2659 _bfd_write_archive_contents, bfd_false},
2661 BFD_JUMP_TABLE_GENERIC (coff),
2662 BFD_JUMP_TABLE_COPY (coff),
2663 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2664 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2665 BFD_JUMP_TABLE_SYMBOLS (coff),
2666 BFD_JUMP_TABLE_RELOCS (coff),
2667 BFD_JUMP_TABLE_WRITE (coff),
2668 BFD_JUMP_TABLE_LINK (coff),
2669 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2671 /* Alternative_target. */
2672 #ifdef TARGET_LITTLE_SYM
2673 & TARGET_LITTLE_SYM,