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
4 Free Software Foundation, Inc.
5
6 Original version pieced together by Kim Knuttila (krk@cygnus.com)
7
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.
11
12 This file is part of BFD, the Binary File Descriptor library.
13
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.
18
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.
23
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. */
28
29 /* Current State:
30 - objdump works
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. */
35
36 #include "sysdep.h"
37 #include "bfd.h"
38 #include "libbfd.h"
39
40 #include "coff/powerpc.h"
41 #include "coff/internal.h"
42
43 #include "coff/pe.h"
44
45 #ifdef BADMAG
46 #undef BADMAG
47 #endif
48
49 #define BADMAG(x) PPCBADMAG(x)
50
51 #include "libcoff.h"
52
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));
58
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. */
68
69 #define SET_UNALLOCATED(x) ((x) = 1)
70 #define IS_UNALLOCATED(x) ((x) == 1)
71
72 #define IS_WRITTEN(x) ((x) & 1)
73 #define MARK_AS_WRITTEN(x) ((x) |= 1)
74 #define MAKE_ADDR_AGAIN(x) ((x) &= ~1)
75
76 /* Turn on this check if you suspect something amiss in the hash tables. */
77 #ifdef DEBUG_HASH
78
79 /* Need a 7 char string for an eye catcher. */
80 #define EYE "krkjunk"
81
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) \
86 { \
87 fprintf (stderr,\
88 _("File %s, line %d, Hash check failure, bad eye %8s\n"), \
89 __FILE__, __LINE__, addr->eye_catcher); \
90 abort (); \
91 }
92
93 #else
94
95 #define HASH_CHECK_DCL
96 #define HASH_CHECK_INIT(ret)
97 #define HASH_CHECK(addr)
98
99 #endif
100
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. */
103
104 /* PE linker hash table entries. */
105
106 struct ppc_coff_link_hash_entry
107 {
108 struct coff_link_hash_entry root; /* First entry, as required. */
109
110 /* As we wonder around the relocs, we'll keep the assigned toc_offset
111 here. */
112 bfd_vma toc_offset; /* Our addition, as required. */
113 int symbol_is_glue;
114 unsigned long int glue_insn;
115
116 HASH_CHECK_DCL
117 };
118
119 /* PE linker hash table. */
120
121 struct ppc_coff_link_hash_table
122 {
123 struct coff_link_hash_table root; /* First entry, as required. */
124 };
125
126 static struct bfd_hash_entry *ppc_coff_link_hash_newfunc
127 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
128 const char *));
129 static struct bfd_link_hash_table *ppc_coff_link_hash_table_create
130 PARAMS ((bfd *));
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 *,
137 bfd_vma *));
138
139 /* Routine to create an entry in the link hash table. */
140
141 static struct bfd_hash_entry *
ppc_coff_link_hash_newfunc(entry,table,string)142 ppc_coff_link_hash_newfunc (entry, table, string)
143 struct bfd_hash_entry *entry;
144 struct bfd_hash_table *table;
145 const char *string;
146 {
147 struct ppc_coff_link_hash_entry *ret =
148 (struct ppc_coff_link_hash_entry *) entry;
149
150 /* Allocate the structure if it has not already been allocated by a
151 subclass. */
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));
156
157 if (ret == (struct ppc_coff_link_hash_entry *) NULL)
158 return NULL;
159
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,
163 table, string));
164
165 if (ret)
166 {
167 /* Initialize the local fields. */
168 SET_UNALLOCATED (ret->toc_offset);
169 ret->symbol_is_glue = 0;
170 ret->glue_insn = 0;
171
172 HASH_CHECK_INIT (ret);
173 }
174
175 return (struct bfd_hash_entry *) ret;
176 }
177
178 /* Initialize a PE linker hash table. */
179
180 static bfd_boolean
ppc_coff_link_hash_table_init(struct ppc_coff_link_hash_table * table,bfd * abfd,struct bfd_hash_entry * (* newfunc)(struct bfd_hash_entry *,struct bfd_hash_table *,const char *),unsigned int entsize)181 ppc_coff_link_hash_table_init (struct ppc_coff_link_hash_table *table,
182 bfd *abfd,
183 struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *,
184 struct bfd_hash_table *,
185 const char *),
186 unsigned int entsize)
187 {
188 return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc, entsize);
189 }
190
191 /* Create a PE linker hash table. */
192
193 static struct bfd_link_hash_table *
ppc_coff_link_hash_table_create(abfd)194 ppc_coff_link_hash_table_create (abfd)
195 bfd *abfd;
196 {
197 struct ppc_coff_link_hash_table *ret;
198 bfd_size_type amt = sizeof (struct ppc_coff_link_hash_table);
199
200 ret = (struct ppc_coff_link_hash_table *) bfd_malloc (amt);
201 if (ret == NULL)
202 return NULL;
203 if (!ppc_coff_link_hash_table_init (ret, abfd,
204 ppc_coff_link_hash_newfunc,
205 sizeof (struct ppc_coff_link_hash_entry)))
206 {
207 free (ret);
208 return (struct bfd_link_hash_table *) NULL;
209 }
210 return &ret->root.root;
211 }
212
213 /* Now, tailor coffcode.h to use our hash stuff. */
214
215 #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create
216
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"
222
223 /* The main body of code is in coffcode.h. */
224
225 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
226
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)
230
231 /* These should definitely go in a header file somewhere... */
232
233 /* NOP */
234 #define IMAGE_REL_PPC_ABSOLUTE 0x0000
235
236 /* 64-bit address */
237 #define IMAGE_REL_PPC_ADDR64 0x0001
238
239 /* 32-bit address */
240 #define IMAGE_REL_PPC_ADDR32 0x0002
241
242 /* 26-bit address, shifted left 2 (branch absolute) */
243 #define IMAGE_REL_PPC_ADDR24 0x0003
244
245 /* 16-bit address */
246 #define IMAGE_REL_PPC_ADDR16 0x0004
247
248 /* 16-bit address, shifted left 2 (load doubleword) */
249 #define IMAGE_REL_PPC_ADDR14 0x0005
250
251 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
252 #define IMAGE_REL_PPC_REL24 0x0006
253
254 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */
255 #define IMAGE_REL_PPC_REL14 0x0007
256
257 /* 16-bit offset from TOC base */
258 #define IMAGE_REL_PPC_TOCREL16 0x0008
259
260 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
261 #define IMAGE_REL_PPC_TOCREL14 0x0009
262
263 /* 32-bit addr w/o image base */
264 #define IMAGE_REL_PPC_ADDR32NB 0x000A
265
266 /* va of containing section (as in an image sectionhdr) */
267 #define IMAGE_REL_PPC_SECREL 0x000B
268
269 /* sectionheader number */
270 #define IMAGE_REL_PPC_SECTION 0x000C
271
272 /* substitute TOC restore instruction iff symbol is glue code */
273 #define IMAGE_REL_PPC_IFGLUE 0x000D
274
275 /* symbol is glue code; virtual address is TOC restore instruction */
276 #define IMAGE_REL_PPC_IMGLUE 0x000E
277
278 /* va of containing section (limited to 16 bits) */
279 #define IMAGE_REL_PPC_SECREL16 0x000F
280
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
287
288 /* This is essentially the same as tocrel16, with TOCDEFN assumed. */
289 #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013
290
291 /* Flag bits in IMAGE_RELOCATION.TYPE. */
292
293 /* Subtract reloc value rather than adding it. */
294 #define IMAGE_REL_PPC_NEG 0x0100
295
296 /* Fix branch prediction bit to predict branch taken. */
297 #define IMAGE_REL_PPC_BRTAKEN 0x0200
298
299 /* Fix branch prediction bit to predict branch not taken. */
300 #define IMAGE_REL_PPC_BRNTAKEN 0x0400
301
302 /* TOC slot defined in file (or, data in toc). */
303 #define IMAGE_REL_PPC_TOCDEFN 0x0800
304
305 /* Masks to isolate above values in IMAGE_RELOCATION.Type. */
306 #define IMAGE_REL_PPC_TYPEMASK 0x00FF
307 #define IMAGE_REL_PPC_FLAGMASK 0x0F00
308
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))
313
314 /* Static helper functions to make relocation work. */
315 /* (Work In Progress) */
316
317 static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd,
318 arelent *reloc,
319 asymbol *symbol,
320 PTR data,
321 asection *section,
322 bfd *output_bfd,
323 char **error));
324 static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd,
325 arelent *reloc,
326 asymbol *symbol,
327 PTR data,
328 asection *section,
329 bfd *output_bfd,
330 char **error));
331
332 static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd,
333 arelent *reloc,
334 asymbol *symbol,
335 PTR data,
336 asection *section,
337 bfd *output_bfd,
338 char **error));
339
340 static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd,
341 arelent *reloc,
342 asymbol *symbol,
343 PTR data,
344 asection *section,
345 bfd *output_bfd,
346 char **error));
347
348 static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd,
349 arelent *reloc,
350 asymbol *symbol,
351 PTR data,
352 asection *section,
353 bfd *output_bfd,
354 char **error));
355
356 static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd,
357 arelent *reloc,
358 asymbol *symbol,
359 PTR data,
360 asection *section,
361 bfd *output_bfd,
362 char **error));
363
364 static bfd_boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto));
365
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. */
369
370 /* Relocation entries for Windows/NT on PowerPC.
371
372 From the document "" we find the following listed as used relocs:
373
374 ABSOLUTE : The noop
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
385 toc.
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
393 codeview debugger.
394
395 In particular, note that the document does not indicate that the
396 relocations listed in the header file are used. */
397
398
399 static reloc_howto_type ppc_coff_howto_table[] =
400 {
401 /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */
402 /* Unused: */
403 HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */
404 0, /* rightshift */
405 0, /* size (0 = byte, 1 = short, 2 = long) */
406 0, /* bitsize */
407 FALSE, /* pc_relative */
408 0, /* bitpos */
409 complain_overflow_dont, /* dont complain_on_overflow */
410 0, /* special_function */
411 "ABSOLUTE", /* name */
412 FALSE, /* partial_inplace */
413 0x00, /* src_mask */
414 0x00, /* dst_mask */
415 FALSE), /* pcrel_offset */
416
417 /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */
418 /* Unused: */
419 HOWTO(IMAGE_REL_PPC_ADDR64, /* type */
420 0, /* rightshift */
421 3, /* size (0 = byte, 1 = short, 2 = long) */
422 64, /* bitsize */
423 FALSE, /* pc_relative */
424 0, /* bitpos */
425 complain_overflow_bitfield, /* complain_on_overflow */
426 0, /* special_function */
427 "ADDR64", /* name */
428 TRUE, /* partial_inplace */
429 MINUS_ONE, /* src_mask */
430 MINUS_ONE, /* dst_mask */
431 FALSE), /* pcrel_offset */
432
433 /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */
434 /* Used: */
435 HOWTO (IMAGE_REL_PPC_ADDR32, /* type */
436 0, /* rightshift */
437 2, /* size (0 = byte, 1 = short, 2 = long) */
438 32, /* bitsize */
439 FALSE, /* pc_relative */
440 0, /* bitpos */
441 complain_overflow_bitfield, /* complain_on_overflow */
442 0, /* special_function */
443 "ADDR32", /* name */
444 TRUE, /* partial_inplace */
445 0xffffffff, /* src_mask */
446 0xffffffff, /* dst_mask */
447 FALSE), /* pcrel_offset */
448
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 */
453 /* Used: */
454 HOWTO (IMAGE_REL_PPC_ADDR24, /* type */
455 0, /* rightshift */
456 2, /* size (0 = byte, 1 = short, 2 = long) */
457 26, /* bitsize */
458 FALSE, /* pc_relative */
459 0, /* bitpos */
460 complain_overflow_bitfield, /* complain_on_overflow */
461 0, /* special_function */
462 "ADDR24", /* name */
463 TRUE, /* partial_inplace */
464 0x07fffffc, /* src_mask */
465 0x07fffffc, /* dst_mask */
466 FALSE), /* pcrel_offset */
467
468 /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */
469 /* Used: */
470 HOWTO (IMAGE_REL_PPC_ADDR16, /* type */
471 0, /* rightshift */
472 1, /* size (0 = byte, 1 = short, 2 = long) */
473 16, /* bitsize */
474 FALSE, /* pc_relative */
475 0, /* bitpos */
476 complain_overflow_signed, /* complain_on_overflow */
477 0, /* special_function */
478 "ADDR16", /* name */
479 TRUE, /* partial_inplace */
480 0xffff, /* src_mask */
481 0xffff, /* dst_mask */
482 FALSE), /* pcrel_offset */
483
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 */
487 /* Unused: */
488 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
489 1, /* rightshift */
490 1, /* size (0 = byte, 1 = short, 2 = long) */
491 16, /* bitsize */
492 FALSE, /* pc_relative */
493 0, /* bitpos */
494 complain_overflow_signed, /* complain_on_overflow */
495 0, /* special_function */
496 "ADDR16", /* name */
497 TRUE, /* partial_inplace */
498 0xffff, /* src_mask */
499 0xffff, /* dst_mask */
500 FALSE), /* pcrel_offset */
501
502 /* IMAGE_REL_PPC_REL24 0x0006 */
503 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */
504 /* Used: */
505 HOWTO (IMAGE_REL_PPC_REL24, /* type */
506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 26, /* bitsize */
509 TRUE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_signed, /* complain_on_overflow */
512 0, /* special_function */
513 "REL24", /* name */
514 TRUE, /* partial_inplace */
515 0x3fffffc, /* src_mask */
516 0x3fffffc, /* dst_mask */
517 FALSE), /* pcrel_offset */
518
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? */
523 /* Unused: */
524 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */
525 1, /* rightshift */
526 1, /* size (0 = byte, 1 = short, 2 = long) */
527 16, /* bitsize */
528 FALSE, /* pc_relative */
529 0, /* bitpos */
530 complain_overflow_signed, /* complain_on_overflow */
531 0, /* special_function */
532 "ADDR16", /* name */
533 TRUE, /* partial_inplace */
534 0xffff, /* src_mask */
535 0xffff, /* dst_mask */
536 TRUE), /* pcrel_offset */
537
538 /* IMAGE_REL_PPC_TOCREL16 0x0008 */
539 /* 16-bit offset from TOC base */
540 /* Used: */
541 HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */
542 0, /* rightshift */
543 1, /* size (0 = byte, 1 = short, 2 = long) */
544 16, /* bitsize */
545 FALSE, /* pc_relative */
546 0, /* bitpos */
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 */
554
555 /* IMAGE_REL_PPC_TOCREL14 0x0009 */
556 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */
557 /* Unused: */
558 HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */
559 1, /* rightshift */
560 1, /* size (0 = byte, 1 = short, 2 = long) */
561 16, /* bitsize */
562 FALSE, /* pc_relative */
563 0, /* bitpos */
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 */
571
572 /* IMAGE_REL_PPC_ADDR32NB 0x000A */
573 /* 32-bit addr w/ image base */
574 /* Unused: */
575 HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */
576 0, /* rightshift */
577 2, /* size (0 = byte, 1 = short, 2 = long) */
578 32, /* bitsize */
579 FALSE, /* pc_relative */
580 0, /* bitpos */
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 */
588
589 /* IMAGE_REL_PPC_SECREL 0x000B */
590 /* va of containing section (as in an image sectionhdr) */
591 /* Unused: */
592 HOWTO (IMAGE_REL_PPC_SECREL,/* type */
593 0, /* rightshift */
594 2, /* size (0 = byte, 1 = short, 2 = long) */
595 32, /* bitsize */
596 FALSE, /* pc_relative */
597 0, /* bitpos */
598 complain_overflow_signed, /* complain_on_overflow */
599 ppc_secrel_reloc, /* special_function */
600 "SECREL", /* name */
601 TRUE, /* partial_inplace */
602 0xffffffff, /* src_mask */
603 0xffffffff, /* dst_mask */
604 TRUE), /* pcrel_offset */
605
606 /* IMAGE_REL_PPC_SECTION 0x000C */
607 /* sectionheader number */
608 /* Unused: */
609 HOWTO (IMAGE_REL_PPC_SECTION,/* type */
610 0, /* rightshift */
611 2, /* size (0 = byte, 1 = short, 2 = long) */
612 32, /* bitsize */
613 FALSE, /* pc_relative */
614 0, /* bitpos */
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 */
622
623 /* IMAGE_REL_PPC_IFGLUE 0x000D */
624 /* substitute TOC restore instruction iff symbol is glue code */
625 /* Used: */
626 HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */
627 0, /* rightshift */
628 2, /* size (0 = byte, 1 = short, 2 = long) */
629 32, /* bitsize */
630 FALSE, /* pc_relative */
631 0, /* bitpos */
632 complain_overflow_signed, /* complain_on_overflow */
633 0, /* special_function */
634 "IFGLUE", /* name */
635 TRUE, /* partial_inplace */
636 0xffffffff, /* src_mask */
637 0xffffffff, /* dst_mask */
638 FALSE), /* pcrel_offset */
639
640 /* IMAGE_REL_PPC_IMGLUE 0x000E */
641 /* symbol is glue code; virtual address is TOC restore instruction */
642 /* Unused: */
643 HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */
644 0, /* rightshift */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
646 32, /* bitsize */
647 FALSE, /* pc_relative */
648 0, /* bitpos */
649 complain_overflow_dont, /* complain_on_overflow */
650 ppc_imglue_reloc, /* special_function */
651 "IMGLUE", /* name */
652 FALSE, /* partial_inplace */
653 0xffffffff, /* src_mask */
654 0xffffffff, /* dst_mask */
655 FALSE), /* pcrel_offset */
656
657 /* IMAGE_REL_PPC_SECREL16 0x000F */
658 /* va of containing section (limited to 16 bits) */
659 /* Unused: */
660 HOWTO (IMAGE_REL_PPC_SECREL16,/* type */
661 0, /* rightshift */
662 1, /* size (0 = byte, 1 = short, 2 = long) */
663 16, /* bitsize */
664 FALSE, /* pc_relative */
665 0, /* bitpos */
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 */
673
674 /* IMAGE_REL_PPC_REFHI 0x0010 */
675 /* Unused: */
676 HOWTO (IMAGE_REL_PPC_REFHI, /* type */
677 0, /* rightshift */
678 1, /* size (0 = byte, 1 = short, 2 = long) */
679 16, /* bitsize */
680 FALSE, /* pc_relative */
681 0, /* bitpos */
682 complain_overflow_signed, /* complain_on_overflow */
683 ppc_refhi_reloc, /* special_function */
684 "REFHI", /* name */
685 TRUE, /* partial_inplace */
686 0xffffffff, /* src_mask */
687 0xffffffff, /* dst_mask */
688 FALSE), /* pcrel_offset */
689
690 /* IMAGE_REL_PPC_REFLO 0x0011 */
691 /* Unused: */
692 HOWTO (IMAGE_REL_PPC_REFLO, /* type */
693 0, /* rightshift */
694 1, /* size (0 = byte, 1 = short, 2 = long) */
695 16, /* bitsize */
696 FALSE, /* pc_relative */
697 0, /* bitpos */
698 complain_overflow_signed, /* complain_on_overflow */
699 ppc_refhi_reloc, /* special_function */
700 "REFLO", /* name */
701 TRUE, /* partial_inplace */
702 0xffffffff, /* src_mask */
703 0xffffffff, /* dst_mask */
704 FALSE), /* pcrel_offset */
705
706 /* IMAGE_REL_PPC_PAIR 0x0012 */
707 /* Unused: */
708 HOWTO (IMAGE_REL_PPC_PAIR, /* type */
709 0, /* rightshift */
710 1, /* size (0 = byte, 1 = short, 2 = long) */
711 16, /* bitsize */
712 FALSE, /* pc_relative */
713 0, /* bitpos */
714 complain_overflow_signed, /* complain_on_overflow */
715 ppc_pair_reloc, /* special_function */
716 "PAIR", /* name */
717 TRUE, /* partial_inplace */
718 0xffffffff, /* src_mask */
719 0xffffffff, /* dst_mask */
720 FALSE), /* pcrel_offset */
721
722 /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */
723 /* 16-bit offset from TOC base, without causing a definition */
724 /* Used: */
725 HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */
726 0, /* rightshift */
727 1, /* size (0 = byte, 1 = short, 2 = long) */
728 16, /* bitsize */
729 FALSE, /* pc_relative */
730 0, /* bitpos */
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 */
738
739 };
740
741 /* Some really cheezy macros that can be turned on to test stderr :-) */
742
743 #ifdef DEBUG_RELOC
744 #define UN_IMPL(x) \
745 { \
746 static int i; \
747 if (i == 0) \
748 { \
749 i = 1; \
750 fprintf (stderr,_("Unimplemented Relocation -- %s\n"),x); \
751 } \
752 }
753
754 #define DUMP_RELOC(n,r) \
755 { \
756 fprintf (stderr,"%s sym %d, addr %d, addend %d\n", \
757 n, (*(r->sym_ptr_ptr))->name, \
758 r->address, r->addend); \
759 }
760
761 /* Given a reloc name, n, and a pointer to an internal_reloc,
762 dump out interesting information on the contents
763
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 */
767
768 #define DUMP_RELOC2(n,r) \
769 { \
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) \
773 ?" ":" TOCDEFN" ); \
774 }
775
776 #else
777 #define UN_IMPL(x)
778 #define DUMP_RELOC(n,r)
779 #define DUMP_RELOC2(n,r)
780 #endif
781
782 /* TOC construction and management routines. */
783
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;
792
793 enum toc_type
794 {
795 default_toc,
796 toc_32,
797 toc_64
798 };
799
800 enum ref_category
801 {
802 priv,
803 pub,
804 tocdata
805 };
806
807 struct list_ele
808 {
809 struct list_ele *next;
810 bfd_vma addr;
811 enum ref_category cat;
812 int offset;
813 const char *name;
814 };
815
816 extern struct list_ele *head;
817 extern struct list_ele *tail;
818
819 static void record_toc
820 PARAMS ((asection *, bfd_signed_vma, enum ref_category, const char *));
821
822 static void
record_toc(toc_section,our_toc_offset,cat,name)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;
827 const char *name;
828 {
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);
832
833 if (t == NULL)
834 abort ();
835 t->next = 0;
836 t->offset = our_toc_offset;
837 t->name = name;
838 t->cat = cat;
839 t->addr = toc_section->output_offset + our_toc_offset;
840
841 if (head == 0)
842 {
843 head = t;
844 tail = t;
845 }
846 else
847 {
848 tail->next = t;
849 tail = t;
850 }
851 }
852
853 #ifdef COFF_IMAGE_WITH_PE
854
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 *));
859
860 /* Record a toc offset against a symbol. */
861 static bfd_boolean
ppc_record_toc_entry(abfd,info,sec,sym,toc_kind)862 ppc_record_toc_entry(abfd, info, sec, sym, toc_kind)
863 bfd *abfd;
864 struct bfd_link_info *info ATTRIBUTE_UNUSED;
865 asection *sec ATTRIBUTE_UNUSED;
866 int sym;
867 enum toc_type toc_kind ATTRIBUTE_UNUSED;
868 {
869 struct ppc_coff_link_hash_entry *h;
870 const char *name;
871
872 int *local_syms;
873
874 h = 0;
875
876 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
877 if (h != 0)
878 {
879 HASH_CHECK(h);
880 }
881
882 if (h == 0)
883 {
884 local_syms = obj_coff_local_toc_table(abfd);
885
886 if (local_syms == 0)
887 {
888 unsigned int i;
889 bfd_size_type amt;
890
891 /* allocate a table */
892 amt = (bfd_size_type) obj_raw_syment_count (abfd) * sizeof (int);
893 local_syms = (int *) bfd_zalloc (abfd, amt);
894 if (local_syms == 0)
895 return FALSE;
896 obj_coff_local_toc_table (abfd) = local_syms;
897
898 for (i = 0; i < obj_raw_syment_count (abfd); ++i)
899 {
900 SET_UNALLOCATED (local_syms[i]);
901 }
902 }
903
904 if (IS_UNALLOCATED(local_syms[sym]))
905 {
906 local_syms[sym] = global_toc_size;
907 global_toc_size += 4;
908
909 /* The size must fit in a 16-bit displacement. */
910 if (global_toc_size > 65535)
911 {
912 (*_bfd_error_handler) (_("TOC overflow"));
913 bfd_set_error (bfd_error_file_too_big);
914 return FALSE;
915 }
916 }
917 }
918 else
919 {
920 name = h->root.root.root.string;
921
922 /* Check to see if there's a toc slot allocated. If not, do it
923 here. It will be used in relocate_section. */
924 if (IS_UNALLOCATED(h->toc_offset))
925 {
926 h->toc_offset = global_toc_size;
927 global_toc_size += 4;
928
929 /* The size must fit in a 16-bit displacement. */
930 if (global_toc_size >= 65535)
931 {
932 (*_bfd_error_handler) (_("TOC overflow"));
933 bfd_set_error (bfd_error_file_too_big);
934 return FALSE;
935 }
936 }
937 }
938
939 return TRUE;
940 }
941
942 /* Record a toc offset against a symbol. */
943 static void
ppc_mark_symbol_as_glue(abfd,sym,rel)944 ppc_mark_symbol_as_glue(abfd, sym, rel)
945 bfd *abfd;
946 int sym;
947 struct internal_reloc *rel;
948 {
949 struct ppc_coff_link_hash_entry *h;
950
951 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]);
952
953 HASH_CHECK(h);
954
955 h->symbol_is_glue = 1;
956 h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr);
957
958 return;
959 }
960
961 #endif /* COFF_IMAGE_WITH_PE */
962
963 /* Return TRUE if this relocation should
964 appear in the output .reloc section. */
965
in_reloc_p(abfd,howto)966 static bfd_boolean in_reloc_p(abfd, howto)
967 bfd * abfd ATTRIBUTE_UNUSED;
968 reloc_howto_type *howto;
969 {
970 return
971 (! howto->pc_relative)
972 && (howto->type != IMAGE_REL_PPC_ADDR32NB)
973 && (howto->type != IMAGE_REL_PPC_TOCREL16)
974 && (howto->type != IMAGE_REL_PPC_IMGLUE)
975 && (howto->type != IMAGE_REL_PPC_IFGLUE)
976 && (howto->type != IMAGE_REL_PPC_SECREL)
977 && (howto->type != IMAGE_REL_PPC_SECTION)
978 && (howto->type != IMAGE_REL_PPC_SECREL16)
979 && (howto->type != IMAGE_REL_PPC_REFHI)
980 && (howto->type != IMAGE_REL_PPC_REFLO)
981 && (howto->type != IMAGE_REL_PPC_PAIR)
982 && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ;
983 }
984
985 /* The reloc processing routine for the optimized COFF linker. */
986
987 static bfd_boolean
coff_ppc_relocate_section(output_bfd,info,input_bfd,input_section,contents,relocs,syms,sections)988 coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section,
989 contents, relocs, syms, sections)
990 bfd *output_bfd;
991 struct bfd_link_info *info;
992 bfd *input_bfd;
993 asection *input_section;
994 bfd_byte *contents;
995 struct internal_reloc *relocs;
996 struct internal_syment *syms;
997 asection **sections;
998 {
999 struct internal_reloc *rel;
1000 struct internal_reloc *relend;
1001 bfd_boolean hihalf;
1002 bfd_vma hihalf_val;
1003 asection *toc_section = 0;
1004 bfd_vma relocation;
1005 reloc_howto_type *howto = 0;
1006
1007 /* If we are performing a relocatable link, we don't need to do a
1008 thing. The caller will take care of adjusting the reloc
1009 addresses and symbol indices. */
1010 if (info->relocatable)
1011 return TRUE;
1012
1013 hihalf = FALSE;
1014 hihalf_val = 0;
1015
1016 rel = relocs;
1017 relend = rel + input_section->reloc_count;
1018 for (; rel < relend; rel++)
1019 {
1020 long symndx;
1021 struct ppc_coff_link_hash_entry *h;
1022 struct internal_syment *sym;
1023 bfd_vma val;
1024
1025 asection *sec;
1026 bfd_reloc_status_type rstat;
1027 bfd_byte *loc;
1028
1029 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1030 unsigned short r_flags = EXTRACT_FLAGS(rel->r_type);
1031
1032 symndx = rel->r_symndx;
1033 loc = contents + rel->r_vaddr - input_section->vma;
1034
1035 /* FIXME: check bounds on r_type */
1036 howto = ppc_coff_howto_table + r_type;
1037
1038 if (symndx == -1)
1039 {
1040 h = NULL;
1041 sym = NULL;
1042 }
1043 else
1044 {
1045 h = (struct ppc_coff_link_hash_entry *)
1046 (obj_coff_sym_hashes (input_bfd)[symndx]);
1047 if (h != 0)
1048 {
1049 HASH_CHECK(h);
1050 }
1051
1052 sym = syms + symndx;
1053 }
1054
1055 if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0)
1056 {
1057 /* An IMGLUE reloc must have a name. Something is very wrong. */
1058 abort ();
1059 }
1060
1061 sec = NULL;
1062 val = 0;
1063
1064 /* FIXME: PAIR unsupported in the following code. */
1065 if (h == NULL)
1066 {
1067 if (symndx == -1)
1068 sec = bfd_abs_section_ptr;
1069 else
1070 {
1071 sec = sections[symndx];
1072 val = (sec->output_section->vma
1073 + sec->output_offset
1074 + sym->n_value);
1075 if (! obj_pe (output_bfd))
1076 val -= sec->vma;
1077 }
1078 }
1079 else
1080 {
1081 HASH_CHECK(h);
1082
1083 if (h->root.root.type == bfd_link_hash_defined
1084 || h->root.root.type == bfd_link_hash_defweak)
1085 {
1086 sec = h->root.root.u.def.section;
1087 val = (h->root.root.u.def.value
1088 + sec->output_section->vma
1089 + sec->output_offset);
1090 }
1091 else
1092 {
1093 if (! ((*info->callbacks->undefined_symbol)
1094 (info, h->root.root.root.string, input_bfd, input_section,
1095 rel->r_vaddr - input_section->vma, TRUE)))
1096 return FALSE;
1097 }
1098 }
1099
1100 rstat = bfd_reloc_ok;
1101
1102 /* Each case must do its own relocation, setting rstat appropriately. */
1103 switch (r_type)
1104 {
1105 default:
1106 (*_bfd_error_handler)
1107 (_("%B: unsupported relocation type 0x%02x"), input_bfd, r_type);
1108 bfd_set_error (bfd_error_bad_value);
1109 return FALSE;
1110 case IMAGE_REL_PPC_TOCREL16:
1111 {
1112 bfd_signed_vma our_toc_offset;
1113 int fixit;
1114
1115 DUMP_RELOC2(howto->name, rel);
1116
1117 if (toc_section == 0)
1118 {
1119 toc_section = bfd_get_section_by_name (bfd_of_toc_owner,
1120 TOC_SECTION_NAME);
1121
1122 if ( toc_section == NULL )
1123 {
1124 /* There is no toc section. Something is very wrong. */
1125 abort ();
1126 }
1127 }
1128
1129 /* Amazing bit tricks present. As we may have seen earlier, we
1130 use the 1 bit to tell us whether or not a toc offset has been
1131 allocated. Now that they've all been allocated, we will use
1132 the 1 bit to tell us if we've written this particular toc
1133 entry out. */
1134 fixit = FALSE;
1135 if (h == 0)
1136 {
1137 /* It is a file local symbol. */
1138 int *local_toc_table;
1139 const char *name;
1140
1141 sym = syms + symndx;
1142 name = sym->_n._n_name;
1143
1144 local_toc_table = obj_coff_local_toc_table(input_bfd);
1145 our_toc_offset = local_toc_table[symndx];
1146
1147 if (IS_WRITTEN(our_toc_offset))
1148 {
1149 /* If it has been written out, it is marked with the
1150 1 bit. Fix up our offset, but do not write it out
1151 again. */
1152 MAKE_ADDR_AGAIN(our_toc_offset);
1153 }
1154 else
1155 {
1156 /* Write out the toc entry. */
1157 record_toc (toc_section, our_toc_offset, priv,
1158 strdup (name));
1159
1160 bfd_put_32 (output_bfd, val,
1161 toc_section->contents + our_toc_offset);
1162
1163 MARK_AS_WRITTEN(local_toc_table[symndx]);
1164 fixit = TRUE;
1165 }
1166 }
1167 else
1168 {
1169 const char *name = h->root.root.root.string;
1170 our_toc_offset = h->toc_offset;
1171
1172 if ((r_flags & IMAGE_REL_PPC_TOCDEFN)
1173 == IMAGE_REL_PPC_TOCDEFN )
1174 {
1175 /* This is unbelievable cheese. Some knowledgable asm
1176 hacker has decided to use r2 as a base for loading
1177 a value. He/She does this by setting the tocdefn bit,
1178 and not supplying a toc definition. The behaviour is
1179 then to use the difference between the value of the
1180 symbol and the actual location of the toc as the toc
1181 index.
1182
1183 In fact, what is usually happening is, because the
1184 Import Address Table is mapped immediately following
1185 the toc, some trippy library code trying for speed on
1186 dll linkage, takes advantage of that and considers
1187 the IAT to be part of the toc, thus saving a load. */
1188
1189 our_toc_offset = val - (toc_section->output_section->vma
1190 + toc_section->output_offset);
1191
1192 /* The size must still fit in a 16-bit displacement. */
1193 if ((bfd_vma) our_toc_offset >= 65535)
1194 {
1195 (*_bfd_error_handler)
1196 (_("%B: Relocation for %s of %lx exceeds Toc size limit"),
1197 input_bfd, name,
1198 (unsigned long) our_toc_offset);
1199 bfd_set_error (bfd_error_bad_value);
1200 return FALSE;
1201 }
1202
1203 record_toc (toc_section, our_toc_offset, pub,
1204 strdup (name));
1205 }
1206 else if (IS_WRITTEN (our_toc_offset))
1207 {
1208 /* If it has been written out, it is marked with the
1209 1 bit. Fix up our offset, but do not write it out
1210 again. */
1211 MAKE_ADDR_AGAIN(our_toc_offset);
1212 }
1213 else
1214 {
1215 record_toc(toc_section, our_toc_offset, pub,
1216 strdup (name));
1217
1218 /* Write out the toc entry. */
1219 bfd_put_32 (output_bfd, val,
1220 toc_section->contents + our_toc_offset);
1221
1222 MARK_AS_WRITTEN(h->toc_offset);
1223 /* The tricky part is that this is the address that
1224 needs a .reloc entry for it. */
1225 fixit = TRUE;
1226 }
1227 }
1228
1229 if (fixit && info->base_file)
1230 {
1231 /* So if this is non pcrelative, and is referenced
1232 to a section or a common symbol, then it needs a reloc. */
1233
1234 /* Relocation to a symbol in a section which
1235 isn't absolute - we output the address here
1236 to a file. */
1237 bfd_vma addr = (toc_section->output_section->vma
1238 + toc_section->output_offset + our_toc_offset);
1239
1240 if (coff_data (output_bfd)->pe)
1241 addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
1242
1243 fwrite (&addr, 1,4, (FILE *) info->base_file);
1244 }
1245
1246 /* FIXME: this test is conservative. */
1247 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN
1248 && (bfd_vma) our_toc_offset > toc_section->size)
1249 {
1250 (*_bfd_error_handler)
1251 (_("%B: Relocation exceeds allocated TOC (%lx)"),
1252 input_bfd, (unsigned long) toc_section->size);
1253 bfd_set_error (bfd_error_bad_value);
1254 return FALSE;
1255 }
1256
1257 /* Now we know the relocation for this toc reference. */
1258 relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT;
1259 rstat = _bfd_relocate_contents (howto, input_bfd, relocation, loc);
1260 }
1261 break;
1262 case IMAGE_REL_PPC_IFGLUE:
1263 {
1264 /* To solve this, we need to know whether or not the symbol
1265 appearing on the call instruction is a glue function or not.
1266 A glue function must announce itself via a IMGLUE reloc, and
1267 the reloc contains the required toc restore instruction. */
1268 bfd_vma x;
1269 const char *my_name;
1270
1271 DUMP_RELOC2 (howto->name, rel);
1272
1273 if (h != 0)
1274 {
1275 my_name = h->root.root.root.string;
1276 if (h->symbol_is_glue == 1)
1277 {
1278 x = bfd_get_32 (input_bfd, loc);
1279 bfd_put_32 (input_bfd, (bfd_vma) h->glue_insn, loc);
1280 }
1281 }
1282 }
1283 break;
1284 case IMAGE_REL_PPC_SECREL:
1285 /* Unimplemented: codeview debugging information. */
1286 /* For fast access to the header of the section
1287 containing the item. */
1288 break;
1289 case IMAGE_REL_PPC_SECTION:
1290 /* Unimplemented: codeview debugging information. */
1291 /* Is used to indicate that the value should be relative
1292 to the beginning of the section that contains the
1293 symbol. */
1294 break;
1295 case IMAGE_REL_PPC_ABSOLUTE:
1296 {
1297 const char *my_name;
1298
1299 if (h == 0)
1300 my_name = (syms+symndx)->_n._n_name;
1301 else
1302 my_name = h->root.root.root.string;
1303
1304 (*_bfd_error_handler)
1305 (_("Warning: unsupported reloc %s <file %B, section %A>\n"
1306 "sym %ld (%s), r_vaddr %ld (%lx)"),
1307 input_bfd, input_section, howto->name,
1308 rel->r_symndx, my_name, (long) rel->r_vaddr,
1309 (unsigned long) rel->r_vaddr);
1310 }
1311 break;
1312 case IMAGE_REL_PPC_IMGLUE:
1313 {
1314 /* There is nothing to do now. This reloc was noted in the first
1315 pass over the relocs, and the glue instruction extracted. */
1316 const char *my_name;
1317
1318 if (h->symbol_is_glue == 1)
1319 break;
1320 my_name = h->root.root.root.string;
1321
1322 (*_bfd_error_handler)
1323 (_("%B: Out of order IMGLUE reloc for %s"), input_bfd, my_name);
1324 bfd_set_error (bfd_error_bad_value);
1325 return FALSE;
1326 }
1327
1328 case IMAGE_REL_PPC_ADDR32NB:
1329 {
1330 const char *name = 0;
1331
1332 DUMP_RELOC2 (howto->name, rel);
1333
1334 if (CONST_STRNEQ (input_section->name, ".idata$2") && first_thunk_address == 0)
1335 {
1336 /* Set magic values. */
1337 int idata5offset;
1338 struct coff_link_hash_entry *myh;
1339
1340 myh = coff_link_hash_lookup (coff_hash_table (info),
1341 "__idata5_magic__",
1342 FALSE, FALSE, TRUE);
1343 first_thunk_address = myh->root.u.def.value +
1344 sec->output_section->vma +
1345 sec->output_offset -
1346 pe_data(output_bfd)->pe_opthdr.ImageBase;
1347
1348 idata5offset = myh->root.u.def.value;
1349 myh = coff_link_hash_lookup (coff_hash_table (info),
1350 "__idata6_magic__",
1351 FALSE, FALSE, TRUE);
1352
1353 thunk_size = myh->root.u.def.value - idata5offset;
1354 myh = coff_link_hash_lookup (coff_hash_table (info),
1355 "__idata4_magic__",
1356 FALSE, FALSE, TRUE);
1357 import_table_size = myh->root.u.def.value;
1358 }
1359
1360 if (h == 0)
1361 {
1362 /* It is a file local symbol. */
1363 sym = syms + symndx;
1364 name = sym->_n._n_name;
1365 }
1366 else
1367 {
1368 char *target = 0;
1369
1370 name = h->root.root.root.string;
1371 if (strcmp (".idata$2", name) == 0)
1372 target = "__idata2_magic__";
1373 else if (strcmp (".idata$4", name) == 0)
1374 target = "__idata4_magic__";
1375 else if (strcmp (".idata$5", name) == 0)
1376 target = "__idata5_magic__";
1377
1378 if (target != 0)
1379 {
1380 struct coff_link_hash_entry *myh;
1381
1382 myh = coff_link_hash_lookup (coff_hash_table (info),
1383 target,
1384 FALSE, FALSE, TRUE);
1385 if (myh == 0)
1386 {
1387 /* Missing magic cookies. Something is very wrong. */
1388 abort ();
1389 }
1390
1391 val = myh->root.u.def.value +
1392 sec->output_section->vma + sec->output_offset;
1393 if (first_thunk_address == 0)
1394 {
1395 int idata5offset;
1396 myh = coff_link_hash_lookup (coff_hash_table (info),
1397 "__idata5_magic__",
1398 FALSE, FALSE, TRUE);
1399 first_thunk_address = myh->root.u.def.value +
1400 sec->output_section->vma +
1401 sec->output_offset -
1402 pe_data(output_bfd)->pe_opthdr.ImageBase;
1403
1404 idata5offset = myh->root.u.def.value;
1405 myh = coff_link_hash_lookup (coff_hash_table (info),
1406 "__idata6_magic__",
1407 FALSE, FALSE, TRUE);
1408
1409 thunk_size = myh->root.u.def.value - idata5offset;
1410 myh = coff_link_hash_lookup (coff_hash_table (info),
1411 "__idata4_magic__",
1412 FALSE, FALSE, TRUE);
1413 import_table_size = myh->root.u.def.value;
1414 }
1415 }
1416 }
1417
1418 rstat = _bfd_relocate_contents (howto,
1419 input_bfd,
1420 val -
1421 pe_data (output_bfd)->pe_opthdr.ImageBase,
1422 loc);
1423 }
1424 break;
1425
1426 case IMAGE_REL_PPC_REL24:
1427 DUMP_RELOC2(howto->name, rel);
1428 val -= (input_section->output_section->vma
1429 + input_section->output_offset);
1430
1431 rstat = _bfd_relocate_contents (howto,
1432 input_bfd,
1433 val,
1434 loc);
1435 break;
1436 case IMAGE_REL_PPC_ADDR16:
1437 case IMAGE_REL_PPC_ADDR24:
1438 case IMAGE_REL_PPC_ADDR32:
1439 DUMP_RELOC2(howto->name, rel);
1440 rstat = _bfd_relocate_contents (howto,
1441 input_bfd,
1442 val,
1443 loc);
1444 break;
1445 }
1446
1447 if (info->base_file)
1448 {
1449 /* So if this is non pcrelative, and is referenced
1450 to a section or a common symbol, then it needs a reloc. */
1451 if (sym && pe_data(output_bfd)->in_reloc_p (output_bfd, howto))
1452 {
1453 /* Relocation to a symbol in a section which
1454 isn't absolute - we output the address here
1455 to a file. */
1456 bfd_vma addr = rel->r_vaddr
1457 - input_section->vma
1458 + input_section->output_offset
1459 + input_section->output_section->vma;
1460
1461 if (coff_data (output_bfd)->pe)
1462 addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
1463
1464 fwrite (&addr, 1,4, (FILE *) info->base_file);
1465 }
1466 }
1467
1468 switch (rstat)
1469 {
1470 default:
1471 abort ();
1472 case bfd_reloc_ok:
1473 break;
1474 case bfd_reloc_overflow:
1475 {
1476 const char *name;
1477 char buf[SYMNMLEN + 1];
1478
1479 if (symndx == -1)
1480 name = "*ABS*";
1481 else if (h != NULL)
1482 name = NULL;
1483 else if (sym == NULL)
1484 name = "*unknown*";
1485 else if (sym->_n._n_n._n_zeroes == 0
1486 && sym->_n._n_n._n_offset != 0)
1487 name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
1488 else
1489 {
1490 strncpy (buf, sym->_n._n_name, SYMNMLEN);
1491 buf[SYMNMLEN] = '\0';
1492 name = buf;
1493 }
1494
1495 if (! ((*info->callbacks->reloc_overflow)
1496 (info, (h ? &h->root.root : NULL), name, howto->name,
1497 (bfd_vma) 0, input_bfd,
1498 input_section, rel->r_vaddr - input_section->vma)))
1499 return FALSE;
1500 }
1501 }
1502 }
1503
1504 return TRUE;
1505 }
1506
1507 #ifdef COFF_IMAGE_WITH_PE
1508
1509 /* FIXME: BFD should not use global variables. This file is compiled
1510 twice, and these variables are shared. This is confusing and
1511 weird. */
1512
1513 long int global_toc_size = 4;
1514
1515 bfd* bfd_of_toc_owner = 0;
1516
1517 long int import_table_size;
1518 long int first_thunk_address;
1519 long int thunk_size;
1520
1521 struct list_ele *head;
1522 struct list_ele *tail;
1523
1524 static char *
1525 h1 = N_("\n\t\t\tTOC MAPPING\n\n");
1526 static char *
1527 h2 = N_(" TOC disassembly Comments Name\n");
1528 static char *
1529 h3 = N_(" Offset spelling (if present)\n");
1530
1531 void
dump_toc(vfile)1532 dump_toc (vfile)
1533 PTR vfile;
1534 {
1535 FILE *file = (FILE *) vfile;
1536 struct list_ele *t;
1537
1538 fprintf (file, _(h1));
1539 fprintf (file, _(h2));
1540 fprintf (file, _(h3));
1541
1542 for (t = head; t != 0; t=t->next)
1543 {
1544 const char *cat = "";
1545
1546 if (t->cat == priv)
1547 cat = _("private ");
1548 else if (t->cat == pub)
1549 cat = _("public ");
1550 else if (t->cat == tocdata)
1551 cat = _("data-in-toc ");
1552
1553 if (t->offset > global_toc_size)
1554 {
1555 if (t->offset <= global_toc_size + thunk_size)
1556 cat = _("IAT reference ");
1557 else
1558 {
1559 fprintf (file,
1560 _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"),
1561 global_toc_size, global_toc_size,
1562 thunk_size, thunk_size);
1563 cat = _("Out of bounds!");
1564 }
1565 }
1566
1567 fprintf (file,
1568 " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768);
1569 fprintf (file,
1570 " %s %s\n",
1571 cat, t->name);
1572
1573 }
1574
1575 fprintf (file, "\n");
1576 }
1577
1578 bfd_boolean
ppc_allocate_toc_section(info)1579 ppc_allocate_toc_section (info)
1580 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1581 {
1582 asection *s;
1583 bfd_byte *foo;
1584 bfd_size_type amt;
1585 static char test_char = '1';
1586
1587 if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */
1588 return TRUE;
1589
1590 if (bfd_of_toc_owner == 0)
1591 /* No toc owner? Something is very wrong. */
1592 abort ();
1593
1594 s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME);
1595 if (s == NULL)
1596 /* No toc section? Something is very wrong. */
1597 abort ();
1598
1599 amt = global_toc_size;
1600 foo = (bfd_byte *) bfd_alloc (bfd_of_toc_owner, amt);
1601 memset(foo, test_char, (size_t) global_toc_size);
1602
1603 s->size = global_toc_size;
1604 s->contents = foo;
1605
1606 return TRUE;
1607 }
1608
1609 bfd_boolean
ppc_process_before_allocation(abfd,info)1610 ppc_process_before_allocation (abfd, info)
1611 bfd *abfd;
1612 struct bfd_link_info *info;
1613 {
1614 asection *sec;
1615 struct internal_reloc *i, *rel;
1616
1617 /* Here we have a bfd that is to be included on the link. We have a hook
1618 to do reloc rummaging, before section sizes are nailed down. */
1619 _bfd_coff_get_external_symbols (abfd);
1620
1621 /* Rummage around all the relocs and map the toc. */
1622 sec = abfd->sections;
1623
1624 if (sec == 0)
1625 return TRUE;
1626
1627 for (; sec != 0; sec = sec->next)
1628 {
1629 if (sec->reloc_count == 0)
1630 continue;
1631
1632 /* load the relocs */
1633 /* FIXME: there may be a storage leak here */
1634 i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0);
1635
1636 if (i == 0)
1637 abort ();
1638
1639 for (rel = i; rel < i + sec->reloc_count; ++rel)
1640 {
1641 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1642 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type);
1643 bfd_boolean ok = TRUE;
1644
1645 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, rel);
1646
1647 switch(r_type)
1648 {
1649 case IMAGE_REL_PPC_TOCREL16:
1650 /* If TOCDEFN is on, ignore as someone else has allocated the
1651 toc entry. */
1652 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN)
1653 ok = ppc_record_toc_entry(abfd, info, sec,
1654 rel->r_symndx, default_toc);
1655 if (!ok)
1656 return FALSE;
1657 break;
1658 case IMAGE_REL_PPC_IMGLUE:
1659 ppc_mark_symbol_as_glue (abfd, rel->r_symndx, rel);
1660 break;
1661 default:
1662 break;
1663 }
1664 }
1665 }
1666
1667 return TRUE;
1668 }
1669
1670 #endif
1671
1672 static bfd_reloc_status_type
ppc_refhi_reloc(abfd,reloc_entry,symbol,data,input_section,output_bfd,error_message)1673 ppc_refhi_reloc (abfd, reloc_entry, symbol, data,
1674 input_section, output_bfd, error_message)
1675 bfd *abfd ATTRIBUTE_UNUSED;
1676 arelent *reloc_entry ATTRIBUTE_UNUSED;
1677 asymbol *symbol ATTRIBUTE_UNUSED;
1678 PTR data ATTRIBUTE_UNUSED;
1679 asection *input_section ATTRIBUTE_UNUSED;
1680 bfd *output_bfd;
1681 char **error_message ATTRIBUTE_UNUSED;
1682 {
1683 UN_IMPL("REFHI");
1684 DUMP_RELOC("REFHI",reloc_entry);
1685
1686 if (output_bfd == (bfd *) NULL)
1687 return bfd_reloc_continue;
1688
1689 return bfd_reloc_undefined;
1690 }
1691
1692 static bfd_reloc_status_type
ppc_pair_reloc(abfd,reloc_entry,symbol,data,input_section,output_bfd,error_message)1693 ppc_pair_reloc (abfd, reloc_entry, symbol, data,
1694 input_section, output_bfd, error_message)
1695 bfd *abfd ATTRIBUTE_UNUSED;
1696 arelent *reloc_entry ATTRIBUTE_UNUSED;
1697 asymbol *symbol ATTRIBUTE_UNUSED;
1698 PTR data ATTRIBUTE_UNUSED;
1699 asection *input_section ATTRIBUTE_UNUSED;
1700 bfd *output_bfd;
1701 char **error_message ATTRIBUTE_UNUSED;
1702 {
1703 UN_IMPL("PAIR");
1704 DUMP_RELOC("PAIR",reloc_entry);
1705
1706 if (output_bfd == (bfd *) NULL)
1707 return bfd_reloc_continue;
1708
1709 return bfd_reloc_undefined;
1710 }
1711
1712 static bfd_reloc_status_type
ppc_toc16_reloc(abfd,reloc_entry,symbol,data,input_section,output_bfd,error_message)1713 ppc_toc16_reloc (abfd, reloc_entry, symbol, data,
1714 input_section, output_bfd, error_message)
1715 bfd *abfd ATTRIBUTE_UNUSED;
1716 arelent *reloc_entry ATTRIBUTE_UNUSED;
1717 asymbol *symbol ATTRIBUTE_UNUSED;
1718 PTR data ATTRIBUTE_UNUSED;
1719 asection *input_section ATTRIBUTE_UNUSED;
1720 bfd *output_bfd;
1721 char **error_message ATTRIBUTE_UNUSED;
1722 {
1723 UN_IMPL ("TOCREL16");
1724 DUMP_RELOC ("TOCREL16",reloc_entry);
1725
1726 if (output_bfd == (bfd *) NULL)
1727 return bfd_reloc_continue;
1728
1729 return bfd_reloc_ok;
1730 }
1731
1732 static bfd_reloc_status_type
ppc_secrel_reloc(abfd,reloc_entry,symbol,data,input_section,output_bfd,error_message)1733 ppc_secrel_reloc (abfd, reloc_entry, symbol, data,
1734 input_section, output_bfd, error_message)
1735 bfd *abfd ATTRIBUTE_UNUSED;
1736 arelent *reloc_entry ATTRIBUTE_UNUSED;
1737 asymbol *symbol ATTRIBUTE_UNUSED;
1738 PTR data ATTRIBUTE_UNUSED;
1739 asection *input_section ATTRIBUTE_UNUSED;
1740 bfd *output_bfd;
1741 char **error_message ATTRIBUTE_UNUSED;
1742 {
1743 UN_IMPL("SECREL");
1744 DUMP_RELOC("SECREL",reloc_entry);
1745
1746 if (output_bfd == (bfd *) NULL)
1747 return bfd_reloc_continue;
1748
1749 return bfd_reloc_ok;
1750 }
1751
1752 static bfd_reloc_status_type
ppc_section_reloc(abfd,reloc_entry,symbol,data,input_section,output_bfd,error_message)1753 ppc_section_reloc (abfd, reloc_entry, symbol, data,
1754 input_section, output_bfd, error_message)
1755 bfd *abfd ATTRIBUTE_UNUSED;
1756 arelent *reloc_entry ATTRIBUTE_UNUSED;
1757 asymbol *symbol ATTRIBUTE_UNUSED;
1758 PTR data ATTRIBUTE_UNUSED;
1759 asection *input_section ATTRIBUTE_UNUSED;
1760 bfd *output_bfd;
1761 char **error_message ATTRIBUTE_UNUSED;
1762 {
1763 UN_IMPL("SECTION");
1764 DUMP_RELOC("SECTION",reloc_entry);
1765
1766 if (output_bfd == (bfd *) NULL)
1767 return bfd_reloc_continue;
1768
1769 return bfd_reloc_ok;
1770 }
1771
1772 static bfd_reloc_status_type
ppc_imglue_reloc(abfd,reloc_entry,symbol,data,input_section,output_bfd,error_message)1773 ppc_imglue_reloc (abfd, reloc_entry, symbol, data,
1774 input_section, output_bfd, error_message)
1775 bfd *abfd ATTRIBUTE_UNUSED;
1776 arelent *reloc_entry ATTRIBUTE_UNUSED;
1777 asymbol *symbol ATTRIBUTE_UNUSED;
1778 PTR data ATTRIBUTE_UNUSED;
1779 asection *input_section ATTRIBUTE_UNUSED;
1780 bfd *output_bfd;
1781 char **error_message ATTRIBUTE_UNUSED;
1782 {
1783 UN_IMPL("IMGLUE");
1784 DUMP_RELOC("IMGLUE",reloc_entry);
1785
1786 if (output_bfd == (bfd *) NULL)
1787 return bfd_reloc_continue;
1788
1789 return bfd_reloc_ok;
1790 }
1791
1792 #define MAX_RELOC_INDEX \
1793 (sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]) - 1)
1794
1795 /* FIXME: There is a possibility that when we read in a reloc from a file,
1796 that there are some bits encoded in the upper portion of the
1797 type field. Not yet implemented. */
1798 static void ppc_coff_rtype2howto PARAMS ((arelent *, struct internal_reloc *));
1799
1800 static void
ppc_coff_rtype2howto(relent,internal)1801 ppc_coff_rtype2howto (relent, internal)
1802 arelent *relent;
1803 struct internal_reloc *internal;
1804 {
1805 /* We can encode one of three things in the type field, aside from the
1806 type:
1807 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
1808 value, rather than an addition value
1809 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
1810 the branch is expected to be taken or not.
1811 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
1812 For now, we just strip this stuff to find the type, and ignore it other
1813 than that. */
1814 reloc_howto_type *howto;
1815 unsigned short r_type = EXTRACT_TYPE (internal->r_type);
1816 unsigned short r_flags = EXTRACT_FLAGS(internal->r_type);
1817 unsigned short junk = EXTRACT_JUNK (internal->r_type);
1818
1819 /* The masking process only slices off the bottom byte for r_type. */
1820 if ( r_type > MAX_RELOC_INDEX )
1821 abort ();
1822
1823 /* Check for absolute crap. */
1824 if (junk != 0)
1825 abort ();
1826
1827 switch(r_type)
1828 {
1829 case IMAGE_REL_PPC_ADDR16:
1830 case IMAGE_REL_PPC_REL24:
1831 case IMAGE_REL_PPC_ADDR24:
1832 case IMAGE_REL_PPC_ADDR32:
1833 case IMAGE_REL_PPC_IFGLUE:
1834 case IMAGE_REL_PPC_ADDR32NB:
1835 case IMAGE_REL_PPC_SECTION:
1836 case IMAGE_REL_PPC_SECREL:
1837 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1838 howto = ppc_coff_howto_table + r_type;
1839 break;
1840 case IMAGE_REL_PPC_IMGLUE:
1841 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1842 howto = ppc_coff_howto_table + r_type;
1843 break;
1844 case IMAGE_REL_PPC_TOCREL16:
1845 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal);
1846 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
1847 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
1848 else
1849 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
1850 break;
1851 default:
1852 fprintf (stderr,
1853 _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"),
1854 ppc_coff_howto_table[r_type].name,
1855 r_type);
1856 howto = ppc_coff_howto_table + r_type;
1857 break;
1858 }
1859
1860 relent->howto = howto;
1861 }
1862
1863 static reloc_howto_type *
coff_ppc_rtype_to_howto(abfd,sec,rel,h,sym,addendp)1864 coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
1865 bfd *abfd ATTRIBUTE_UNUSED;
1866 asection *sec;
1867 struct internal_reloc *rel;
1868 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED;
1869 struct internal_syment *sym ATTRIBUTE_UNUSED;
1870 bfd_vma *addendp;
1871 {
1872 reloc_howto_type *howto;
1873
1874 /* We can encode one of three things in the type field, aside from the
1875 type:
1876 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction
1877 value, rather than an addition value
1878 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that
1879 the branch is expected to be taken or not.
1880 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file
1881 For now, we just strip this stuff to find the type, and ignore it other
1882 than that. */
1883
1884 unsigned short r_type = EXTRACT_TYPE (rel->r_type);
1885 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type);
1886 unsigned short junk = EXTRACT_JUNK (rel->r_type);
1887
1888 /* The masking process only slices off the bottom byte for r_type. */
1889 if (r_type > MAX_RELOC_INDEX)
1890 abort ();
1891
1892 /* Check for absolute crap. */
1893 if (junk != 0)
1894 abort ();
1895
1896 switch(r_type)
1897 {
1898 case IMAGE_REL_PPC_ADDR32NB:
1899 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1900 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
1901 howto = ppc_coff_howto_table + r_type;
1902 break;
1903 case IMAGE_REL_PPC_TOCREL16:
1904 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1905 if (r_flags & IMAGE_REL_PPC_TOCDEFN)
1906 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN;
1907 else
1908 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16;
1909 break;
1910 case IMAGE_REL_PPC_ADDR16:
1911 case IMAGE_REL_PPC_REL24:
1912 case IMAGE_REL_PPC_ADDR24:
1913 case IMAGE_REL_PPC_ADDR32:
1914 case IMAGE_REL_PPC_IFGLUE:
1915 case IMAGE_REL_PPC_SECTION:
1916 case IMAGE_REL_PPC_SECREL:
1917 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1918 howto = ppc_coff_howto_table + r_type;
1919 break;
1920 case IMAGE_REL_PPC_IMGLUE:
1921 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel);
1922 howto = ppc_coff_howto_table + r_type;
1923 break;
1924 default:
1925 fprintf (stderr,
1926 _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"),
1927 ppc_coff_howto_table[r_type].name,
1928 r_type);
1929 howto = ppc_coff_howto_table + r_type;
1930 break;
1931 }
1932
1933 return howto;
1934 }
1935
1936 /* A cheesy little macro to make the code a little more readable. */
1937 #define HOW2MAP(bfd_rtype,ppc_rtype) \
1938 case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype]
1939
1940 static reloc_howto_type *ppc_coff_reloc_type_lookup
1941 PARAMS ((bfd *, bfd_reloc_code_real_type));
1942
1943 static reloc_howto_type *
ppc_coff_reloc_type_lookup(abfd,code)1944 ppc_coff_reloc_type_lookup (abfd, code)
1945 bfd *abfd ATTRIBUTE_UNUSED;
1946 bfd_reloc_code_real_type code;
1947 {
1948 switch (code)
1949 {
1950 HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE);
1951 HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE);
1952 HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16);
1953 HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24);
1954 HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24);
1955 HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16);
1956 HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN);
1957 HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32);
1958 HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB);
1959 default:
1960 return NULL;
1961 }
1962 }
1963 #undef HOW2MAP
1964
1965 static reloc_howto_type *
ppc_coff_reloc_name_lookup(bfd * abfd ATTRIBUTE_UNUSED,const char * r_name)1966 ppc_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1967 const char *r_name)
1968 {
1969 unsigned int i;
1970
1971 for (i = 0;
1972 i < sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]);
1973 i++)
1974 if (ppc_coff_howto_table[i].name != NULL
1975 && strcasecmp (ppc_coff_howto_table[i].name, r_name) == 0)
1976 return &ppc_coff_howto_table[i];
1977
1978 return NULL;
1979 }
1980
1981 /* Tailor coffcode.h -- macro heaven. */
1982
1983 #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst)
1984
1985 /* We use the special COFF backend linker, with our own special touch. */
1986
1987 #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup
1988 #define coff_bfd_reloc_name_lookup ppc_coff_reloc_name_lookup
1989 #define coff_rtype_to_howto coff_ppc_rtype_to_howto
1990 #define coff_relocate_section coff_ppc_relocate_section
1991 #define coff_bfd_final_link ppc_bfd_coff_final_link
1992
1993 #ifndef COFF_IMAGE_WITH_PE
1994 #endif
1995
1996 #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;}
1997
1998 #define COFF_PAGE_SIZE 0x1000
1999
2000 /* FIXME: This controls some code that used to be in peicode.h and is
2001 now in peigen.c. It will not control the code in peigen.c. If
2002 anybody wants to get this working, you will need to fix that. */
2003 #define POWERPC_LE_PE
2004
2005 #define COFF_SECTION_ALIGNMENT_ENTRIES \
2006 { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \
2007 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2008 { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \
2009 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \
2010 { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \
2011 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2012 { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \
2013 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \
2014 { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \
2015 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \
2016 { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \
2017 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }
2018
2019 #include "coffcode.h"
2020
2021 #ifndef COFF_IMAGE_WITH_PE
2022
2023 static bfd_boolean ppc_do_last PARAMS ((bfd *));
2024 static bfd *ppc_get_last PARAMS ((void));
2025
2026 static bfd_boolean
ppc_do_last(abfd)2027 ppc_do_last (abfd)
2028 bfd *abfd;
2029 {
2030 if (abfd == bfd_of_toc_owner)
2031 return TRUE;
2032 else
2033 return FALSE;
2034 }
2035
2036 static bfd *
ppc_get_last()2037 ppc_get_last()
2038 {
2039 return bfd_of_toc_owner;
2040 }
2041
2042 /* This piece of machinery exists only to guarantee that the bfd that holds
2043 the toc section is written last.
2044
2045 This does depend on bfd_make_section attaching a new section to the
2046 end of the section list for the bfd.
2047
2048 This is otherwise intended to be functionally the same as
2049 cofflink.c:_bfd_coff_final_link(). It is specifically different only
2050 where the POWERPC_LE_PE macro modifies the code. It is left in as a
2051 precise form of comment. krk@cygnus.com */
2052
2053 /* Do the final link step. */
2054
2055 bfd_boolean
ppc_bfd_coff_final_link(abfd,info)2056 ppc_bfd_coff_final_link (abfd, info)
2057 bfd *abfd;
2058 struct bfd_link_info *info;
2059 {
2060 bfd_size_type symesz;
2061 struct coff_final_link_info finfo;
2062 bfd_boolean debug_merge_allocated;
2063 asection *o;
2064 struct bfd_link_order *p;
2065 bfd_size_type max_sym_count;
2066 bfd_size_type max_lineno_count;
2067 bfd_size_type max_reloc_count;
2068 bfd_size_type max_output_reloc_count;
2069 bfd_size_type max_contents_size;
2070 file_ptr rel_filepos;
2071 unsigned int relsz;
2072 file_ptr line_filepos;
2073 unsigned int linesz;
2074 bfd *sub;
2075 bfd_byte *external_relocs = NULL;
2076 char strbuf[STRING_SIZE_SIZE];
2077 bfd_size_type amt;
2078
2079 symesz = bfd_coff_symesz (abfd);
2080
2081 finfo.info = info;
2082 finfo.output_bfd = abfd;
2083 finfo.strtab = NULL;
2084 finfo.section_info = NULL;
2085 finfo.last_file_index = -1;
2086 finfo.last_bf_index = -1;
2087 finfo.internal_syms = NULL;
2088 finfo.sec_ptrs = NULL;
2089 finfo.sym_indices = NULL;
2090 finfo.outsyms = NULL;
2091 finfo.linenos = NULL;
2092 finfo.contents = NULL;
2093 finfo.external_relocs = NULL;
2094 finfo.internal_relocs = NULL;
2095 debug_merge_allocated = FALSE;
2096
2097 coff_data (abfd)->link_info = info;
2098
2099 finfo.strtab = _bfd_stringtab_init ();
2100 if (finfo.strtab == NULL)
2101 goto error_return;
2102
2103 if (! coff_debug_merge_hash_table_init (&finfo.debug_merge))
2104 goto error_return;
2105 debug_merge_allocated = TRUE;
2106
2107 /* Compute the file positions for all the sections. */
2108 if (! abfd->output_has_begun)
2109 {
2110 if (! bfd_coff_compute_section_file_positions (abfd))
2111 return FALSE;
2112 }
2113
2114 /* Count the line numbers and relocation entries required for the
2115 output file. Set the file positions for the relocs. */
2116 rel_filepos = obj_relocbase (abfd);
2117 relsz = bfd_coff_relsz (abfd);
2118 max_contents_size = 0;
2119 max_lineno_count = 0;
2120 max_reloc_count = 0;
2121
2122 for (o = abfd->sections; o != NULL; o = o->next)
2123 {
2124 o->reloc_count = 0;
2125 o->lineno_count = 0;
2126
2127 for (p = o->map_head.link_order; p != NULL; p = p->next)
2128 {
2129 if (p->type == bfd_indirect_link_order)
2130 {
2131 asection *sec;
2132
2133 sec = p->u.indirect.section;
2134
2135 /* Mark all sections which are to be included in the
2136 link. This will normally be every section. We need
2137 to do this so that we can identify any sections which
2138 the linker has decided to not include. */
2139 sec->linker_mark = TRUE;
2140
2141 if (info->strip == strip_none
2142 || info->strip == strip_some)
2143 o->lineno_count += sec->lineno_count;
2144
2145 if (info->relocatable)
2146 o->reloc_count += sec->reloc_count;
2147
2148 if (sec->rawsize > max_contents_size)
2149 max_contents_size = sec->rawsize;
2150 if (sec->size > max_contents_size)
2151 max_contents_size = sec->size;
2152 if (sec->lineno_count > max_lineno_count)
2153 max_lineno_count = sec->lineno_count;
2154 if (sec->reloc_count > max_reloc_count)
2155 max_reloc_count = sec->reloc_count;
2156 }
2157 else if (info->relocatable
2158 && (p->type == bfd_section_reloc_link_order
2159 || p->type == bfd_symbol_reloc_link_order))
2160 ++o->reloc_count;
2161 }
2162 if (o->reloc_count == 0)
2163 o->rel_filepos = 0;
2164 else
2165 {
2166 o->flags |= SEC_RELOC;
2167 o->rel_filepos = rel_filepos;
2168 rel_filepos += o->reloc_count * relsz;
2169 }
2170 }
2171
2172 /* If doing a relocatable link, allocate space for the pointers we
2173 need to keep. */
2174 if (info->relocatable)
2175 {
2176 unsigned int i;
2177
2178 /* We use section_count + 1, rather than section_count, because
2179 the target_index fields are 1 based. */
2180 amt = abfd->section_count + 1;
2181 amt *= sizeof (struct coff_link_section_info);
2182 finfo.section_info = (struct coff_link_section_info *) bfd_malloc (amt);
2183
2184 if (finfo.section_info == NULL)
2185 goto error_return;
2186
2187 for (i = 0; i <= abfd->section_count; i++)
2188 {
2189 finfo.section_info[i].relocs = NULL;
2190 finfo.section_info[i].rel_hashes = NULL;
2191 }
2192 }
2193
2194 /* We now know the size of the relocs, so we can determine the file
2195 positions of the line numbers. */
2196 line_filepos = rel_filepos;
2197 linesz = bfd_coff_linesz (abfd);
2198 max_output_reloc_count = 0;
2199
2200 for (o = abfd->sections; o != NULL; o = o->next)
2201 {
2202 if (o->lineno_count == 0)
2203 o->line_filepos = 0;
2204 else
2205 {
2206 o->line_filepos = line_filepos;
2207 line_filepos += o->lineno_count * linesz;
2208 }
2209
2210 if (o->reloc_count != 0)
2211 {
2212 /* We don't know the indices of global symbols until we have
2213 written out all the local symbols. For each section in
2214 the output file, we keep an array of pointers to hash
2215 table entries. Each entry in the array corresponds to a
2216 reloc. When we find a reloc against a global symbol, we
2217 set the corresponding entry in this array so that we can
2218 fix up the symbol index after we have written out all the
2219 local symbols.
2220
2221 Because of this problem, we also keep the relocs in
2222 memory until the end of the link. This wastes memory,
2223 but only when doing a relocatable link, which is not the
2224 common case. */
2225 BFD_ASSERT (info->relocatable);
2226 amt = o->reloc_count;
2227 amt *= sizeof (struct internal_reloc);
2228 finfo.section_info[o->target_index].relocs =
2229 (struct internal_reloc *) bfd_malloc (amt);
2230 amt = o->reloc_count;
2231 amt *= sizeof (struct coff_link_hash_entry *);
2232 finfo.section_info[o->target_index].rel_hashes =
2233 (struct coff_link_hash_entry **) bfd_malloc (amt);
2234 if (finfo.section_info[o->target_index].relocs == NULL
2235 || finfo.section_info[o->target_index].rel_hashes == NULL)
2236 goto error_return;
2237
2238 if (o->reloc_count > max_output_reloc_count)
2239 max_output_reloc_count = o->reloc_count;
2240 }
2241
2242 /* Reset the reloc and lineno counts, so that we can use them to
2243 count the number of entries we have output so far. */
2244 o->reloc_count = 0;
2245 o->lineno_count = 0;
2246 }
2247
2248 obj_sym_filepos (abfd) = line_filepos;
2249
2250 /* Figure out the largest number of symbols in an input BFD. Take
2251 the opportunity to clear the output_has_begun fields of all the
2252 input BFD's. */
2253 max_sym_count = 0;
2254 for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
2255 {
2256 bfd_size_type sz;
2257
2258 sub->output_has_begun = FALSE;
2259 sz = obj_raw_syment_count (sub);
2260 if (sz > max_sym_count)
2261 max_sym_count = sz;
2262 }
2263
2264 /* Allocate some buffers used while linking. */
2265 amt = max_sym_count * sizeof (struct internal_syment);
2266 finfo.internal_syms = (struct internal_syment *) bfd_malloc (amt);
2267 amt = max_sym_count * sizeof (asection *);
2268 finfo.sec_ptrs = (asection **) bfd_malloc (amt);
2269 amt = max_sym_count * sizeof (long);
2270 finfo.sym_indices = (long *) bfd_malloc (amt);
2271 amt = (max_sym_count + 1) * symesz;
2272 finfo.outsyms = (bfd_byte *) bfd_malloc (amt);
2273 amt = max_lineno_count * bfd_coff_linesz (abfd);
2274 finfo.linenos = (bfd_byte *) bfd_malloc (amt);
2275 finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
2276 finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
2277 if (! info->relocatable)
2278 {
2279 amt = max_reloc_count * sizeof (struct internal_reloc);
2280 finfo.internal_relocs = (struct internal_reloc *) bfd_malloc (amt);
2281 }
2282 if ((finfo.internal_syms == NULL && max_sym_count > 0)
2283 || (finfo.sec_ptrs == NULL && max_sym_count > 0)
2284 || (finfo.sym_indices == NULL && max_sym_count > 0)
2285 || finfo.outsyms == NULL
2286 || (finfo.linenos == NULL && max_lineno_count > 0)
2287 || (finfo.contents == NULL && max_contents_size > 0)
2288 || (finfo.external_relocs == NULL && max_reloc_count > 0)
2289 || (! info->relocatable
2290 && finfo.internal_relocs == NULL
2291 && max_reloc_count > 0))
2292 goto error_return;
2293
2294 /* We now know the position of everything in the file, except that
2295 we don't know the size of the symbol table and therefore we don't
2296 know where the string table starts. We just build the string
2297 table in memory as we go along. We process all the relocations
2298 for a single input file at once. */
2299 obj_raw_syment_count (abfd) = 0;
2300
2301 if (coff_backend_info (abfd)->_bfd_coff_start_final_link)
2302 {
2303 if (! bfd_coff_start_final_link (abfd, info))
2304 goto error_return;
2305 }
2306
2307 for (o = abfd->sections; o != NULL; o = o->next)
2308 {
2309 for (p = o->map_head.link_order; p != NULL; p = p->next)
2310 {
2311 if (p->type == bfd_indirect_link_order
2312 && (bfd_get_flavour (p->u.indirect.section->owner)
2313 == bfd_target_coff_flavour))
2314 {
2315 sub = p->u.indirect.section->owner;
2316 #ifdef POWERPC_LE_PE
2317 if (! sub->output_has_begun && !ppc_do_last(sub))
2318 #else
2319 if (! sub->output_has_begun)
2320 #endif
2321 {
2322 if (! _bfd_coff_link_input_bfd (&finfo, sub))
2323 goto error_return;
2324 sub->output_has_begun = TRUE;
2325 }
2326 }
2327 else if (p->type == bfd_section_reloc_link_order
2328 || p->type == bfd_symbol_reloc_link_order)
2329 {
2330 if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p))
2331 goto error_return;
2332 }
2333 else
2334 {
2335 if (! _bfd_default_link_order (abfd, info, o, p))
2336 goto error_return;
2337 }
2338 }
2339 }
2340
2341 #ifdef POWERPC_LE_PE
2342 {
2343 bfd* last_one = ppc_get_last();
2344 if (last_one)
2345 {
2346 if (! _bfd_coff_link_input_bfd (&finfo, last_one))
2347 goto error_return;
2348 }
2349 last_one->output_has_begun = TRUE;
2350 }
2351 #endif
2352
2353 /* Free up the buffers used by _bfd_coff_link_input_bfd. */
2354 coff_debug_merge_hash_table_free (&finfo.debug_merge);
2355 debug_merge_allocated = FALSE;
2356
2357 if (finfo.internal_syms != NULL)
2358 {
2359 free (finfo.internal_syms);
2360 finfo.internal_syms = NULL;
2361 }
2362 if (finfo.sec_ptrs != NULL)
2363 {
2364 free (finfo.sec_ptrs);
2365 finfo.sec_ptrs = NULL;
2366 }
2367 if (finfo.sym_indices != NULL)
2368 {
2369 free (finfo.sym_indices);
2370 finfo.sym_indices = NULL;
2371 }
2372 if (finfo.linenos != NULL)
2373 {
2374 free (finfo.linenos);
2375 finfo.linenos = NULL;
2376 }
2377 if (finfo.contents != NULL)
2378 {
2379 free (finfo.contents);
2380 finfo.contents = NULL;
2381 }
2382 if (finfo.external_relocs != NULL)
2383 {
2384 free (finfo.external_relocs);
2385 finfo.external_relocs = NULL;
2386 }
2387 if (finfo.internal_relocs != NULL)
2388 {
2389 free (finfo.internal_relocs);
2390 finfo.internal_relocs = NULL;
2391 }
2392
2393 /* The value of the last C_FILE symbol is supposed to be the symbol
2394 index of the first external symbol. Write it out again if
2395 necessary. */
2396 if (finfo.last_file_index != -1
2397 && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd))
2398 {
2399 file_ptr pos;
2400
2401 finfo.last_file.n_value = obj_raw_syment_count (abfd);
2402 bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
2403 (PTR) finfo.outsyms);
2404 pos = obj_sym_filepos (abfd) + finfo.last_file_index * symesz;
2405 if (bfd_seek (abfd, pos, SEEK_SET) != 0
2406 || bfd_bwrite (finfo.outsyms, symesz, abfd) != symesz)
2407 return FALSE;
2408 }
2409
2410 /* Write out the global symbols. */
2411 finfo.failed = FALSE;
2412 coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym,
2413 (PTR) &finfo);
2414 if (finfo.failed)
2415 goto error_return;
2416
2417 /* The outsyms buffer is used by _bfd_coff_write_global_sym. */
2418 if (finfo.outsyms != NULL)
2419 {
2420 free (finfo.outsyms);
2421 finfo.outsyms = NULL;
2422 }
2423
2424 if (info->relocatable)
2425 {
2426 /* Now that we have written out all the global symbols, we know
2427 the symbol indices to use for relocs against them, and we can
2428 finally write out the relocs. */
2429 amt = max_output_reloc_count * relsz;
2430 external_relocs = (bfd_byte *) bfd_malloc (amt);
2431 if (external_relocs == NULL)
2432 goto error_return;
2433
2434 for (o = abfd->sections; o != NULL; o = o->next)
2435 {
2436 struct internal_reloc *irel;
2437 struct internal_reloc *irelend;
2438 struct coff_link_hash_entry **rel_hash;
2439 bfd_byte *erel;
2440
2441 if (o->reloc_count == 0)
2442 continue;
2443
2444 irel = finfo.section_info[o->target_index].relocs;
2445 irelend = irel + o->reloc_count;
2446 rel_hash = finfo.section_info[o->target_index].rel_hashes;
2447 erel = external_relocs;
2448 for (; irel < irelend; irel++, rel_hash++, erel += relsz)
2449 {
2450 if (*rel_hash != NULL)
2451 {
2452 BFD_ASSERT ((*rel_hash)->indx >= 0);
2453 irel->r_symndx = (*rel_hash)->indx;
2454 }
2455 bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
2456 }
2457
2458 amt = relsz * o->reloc_count;
2459 if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
2460 || bfd_bwrite ((PTR) external_relocs, amt, abfd) != amt)
2461 goto error_return;
2462 }
2463
2464 free (external_relocs);
2465 external_relocs = NULL;
2466 }
2467
2468 /* Free up the section information. */
2469 if (finfo.section_info != NULL)
2470 {
2471 unsigned int i;
2472
2473 for (i = 0; i < abfd->section_count; i++)
2474 {
2475 if (finfo.section_info[i].relocs != NULL)
2476 free (finfo.section_info[i].relocs);
2477 if (finfo.section_info[i].rel_hashes != NULL)
2478 free (finfo.section_info[i].rel_hashes);
2479 }
2480 free (finfo.section_info);
2481 finfo.section_info = NULL;
2482 }
2483
2484 /* If we have optimized stabs strings, output them. */
2485 if (coff_hash_table (info)->stab_info.stabstr != NULL)
2486 {
2487 if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info))
2488 return FALSE;
2489 }
2490
2491 /* Write out the string table. */
2492 if (obj_raw_syment_count (abfd) != 0)
2493 {
2494 file_ptr pos;
2495
2496 pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz;
2497 if (bfd_seek (abfd, pos, SEEK_SET) != 0)
2498 return FALSE;
2499
2500 #if STRING_SIZE_SIZE == 4
2501 H_PUT_32 (abfd,
2502 _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
2503 strbuf);
2504 #else
2505 #error Change H_PUT_32 above
2506 #endif
2507
2508 if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE, abfd)
2509 != STRING_SIZE_SIZE)
2510 return FALSE;
2511
2512 if (! _bfd_stringtab_emit (abfd, finfo.strtab))
2513 return FALSE;
2514 }
2515
2516 _bfd_stringtab_free (finfo.strtab);
2517
2518 /* Setting bfd_get_symcount to 0 will cause write_object_contents to
2519 not try to write out the symbols. */
2520 bfd_get_symcount (abfd) = 0;
2521
2522 return TRUE;
2523
2524 error_return:
2525 if (debug_merge_allocated)
2526 coff_debug_merge_hash_table_free (&finfo.debug_merge);
2527 if (finfo.strtab != NULL)
2528 _bfd_stringtab_free (finfo.strtab);
2529 if (finfo.section_info != NULL)
2530 {
2531 unsigned int i;
2532
2533 for (i = 0; i < abfd->section_count; i++)
2534 {
2535 if (finfo.section_info[i].relocs != NULL)
2536 free (finfo.section_info[i].relocs);
2537 if (finfo.section_info[i].rel_hashes != NULL)
2538 free (finfo.section_info[i].rel_hashes);
2539 }
2540 free (finfo.section_info);
2541 }
2542 if (finfo.internal_syms != NULL)
2543 free (finfo.internal_syms);
2544 if (finfo.sec_ptrs != NULL)
2545 free (finfo.sec_ptrs);
2546 if (finfo.sym_indices != NULL)
2547 free (finfo.sym_indices);
2548 if (finfo.outsyms != NULL)
2549 free (finfo.outsyms);
2550 if (finfo.linenos != NULL)
2551 free (finfo.linenos);
2552 if (finfo.contents != NULL)
2553 free (finfo.contents);
2554 if (finfo.external_relocs != NULL)
2555 free (finfo.external_relocs);
2556 if (finfo.internal_relocs != NULL)
2557 free (finfo.internal_relocs);
2558 if (external_relocs != NULL)
2559 free (external_relocs);
2560 return FALSE;
2561 }
2562 #endif
2563
2564 /* Forward declaration for use by alternative_target field. */
2565 #ifdef TARGET_BIG_SYM
2566 extern const bfd_target TARGET_BIG_SYM;
2567 #endif
2568
2569 /* The transfer vectors that lead the outside world to all of the above. */
2570
2571 #ifdef TARGET_LITTLE_SYM
2572 const bfd_target TARGET_LITTLE_SYM =
2573 {
2574 TARGET_LITTLE_NAME, /* name or coff-arm-little */
2575 bfd_target_coff_flavour,
2576 BFD_ENDIAN_LITTLE, /* data byte order is little */
2577 BFD_ENDIAN_LITTLE, /* header byte order is little */
2578
2579 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2580 HAS_LINENO | HAS_DEBUG |
2581 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2582
2583 #ifndef COFF_WITH_PE
2584 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2585 #else
2586 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2587 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2588 #endif
2589
2590 0, /* leading char */
2591 '/', /* ar_pad_char */
2592 15, /* ar_max_namelen??? FIXMEmgo */
2593
2594 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2595 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2596 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
2597
2598 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
2599 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
2600 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
2601
2602 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2603 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2604 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2605 bfd_false},
2606 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2607 _bfd_write_archive_contents, bfd_false},
2608
2609 BFD_JUMP_TABLE_GENERIC (coff),
2610 BFD_JUMP_TABLE_COPY (coff),
2611 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2612 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2613 BFD_JUMP_TABLE_SYMBOLS (coff),
2614 BFD_JUMP_TABLE_RELOCS (coff),
2615 BFD_JUMP_TABLE_WRITE (coff),
2616 BFD_JUMP_TABLE_LINK (coff),
2617 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2618
2619 /* Alternative_target. */
2620 #ifdef TARGET_BIG_SYM
2621 & TARGET_BIG_SYM,
2622 #else
2623 NULL,
2624 #endif
2625
2626 COFF_SWAP_TABLE
2627 };
2628 #endif
2629
2630 #ifdef TARGET_BIG_SYM
2631 const bfd_target TARGET_BIG_SYM =
2632 {
2633 TARGET_BIG_NAME,
2634 bfd_target_coff_flavour,
2635 BFD_ENDIAN_BIG, /* data byte order is big */
2636 BFD_ENDIAN_BIG, /* header byte order is big */
2637
2638 (HAS_RELOC | EXEC_P | /* FIXME: object flags */
2639 HAS_LINENO | HAS_DEBUG |
2640 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
2641
2642 #ifndef COFF_WITH_PE
2643 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
2644 #else
2645 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
2646 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
2647 #endif
2648
2649 0, /* leading char */
2650 '/', /* ar_pad_char */
2651 15, /* ar_max_namelen??? FIXMEmgo */
2652
2653 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2654 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2655 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
2656
2657 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
2658 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
2659 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
2660
2661 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
2662 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p },
2663 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
2664 bfd_false},
2665 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
2666 _bfd_write_archive_contents, bfd_false},
2667
2668 BFD_JUMP_TABLE_GENERIC (coff),
2669 BFD_JUMP_TABLE_COPY (coff),
2670 BFD_JUMP_TABLE_CORE (_bfd_nocore),
2671 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
2672 BFD_JUMP_TABLE_SYMBOLS (coff),
2673 BFD_JUMP_TABLE_RELOCS (coff),
2674 BFD_JUMP_TABLE_WRITE (coff),
2675 BFD_JUMP_TABLE_LINK (coff),
2676 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
2677
2678 /* Alternative_target. */
2679 #ifdef TARGET_LITTLE_SYM
2680 & TARGET_LITTLE_SYM,
2681 #else
2682 NULL,
2683 #endif
2684
2685 COFF_SWAP_TABLE
2686 };
2687
2688 #endif
2689