Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for PowerPC Microsoft Portable Executable files. |
5f771d47 | 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | ||
5 | Original version pieced together by Kim Knuttila (krk@cygnus.com) | |
6 | ||
7 | There is nothing new under the sun. This file draws a lot on other | |
8 | coff files, in particular, those for the rs/6000, alpha, mips, and | |
9 | intel backends, and the PE work for the arm. | |
10 | ||
11 | This file is part of BFD, the Binary File Descriptor library. | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, 59 Temple Place - Suite 330, | |
26 | Boston, MA 02111-1307, USA. */ | |
27 | ||
28 | /* Current State: | |
29 | - objdump works | |
30 | - relocs generated by gas | |
31 | - ld will link files, but they do not run. | |
32 | - dlltool will not produce correct output in some .reloc cases, and will | |
33 | not produce the right glue code for dll function calls. | |
34 | */ | |
35 | ||
36 | ||
37 | #include "bfd.h" | |
38 | #include "sysdep.h" | |
39 | ||
40 | #include "libbfd.h" | |
41 | ||
42 | #include "coff/powerpc.h" | |
43 | #include "coff/internal.h" | |
44 | ||
45 | #include "coff/pe.h" | |
46 | ||
47 | #ifdef BADMAG | |
48 | #undef BADMAG | |
49 | #endif | |
50 | ||
51 | #define BADMAG(x) PPCBADMAG(x) | |
52 | ||
53 | #include "libcoff.h" | |
54 | ||
55 | /* This file is compiled more than once, but we only compile the | |
56 | final_link routine once. */ | |
57 | extern boolean ppc_bfd_coff_final_link | |
58 | PARAMS ((bfd *, struct bfd_link_info *)); | |
59 | extern void dump_toc PARAMS ((PTR)); | |
60 | ||
61 | /* The toc is a set of bfd_vma fields. We use the fact that valid */ | |
62 | /* addresses are even (i.e. the bit representing "1" is off) to allow */ | |
63 | /* us to encode a little extra information in the field */ | |
64 | /* - Unallocated addresses are intialized to 1. */ | |
65 | /* - Allocated addresses are even numbers. */ | |
66 | /* The first time we actually write a reference to the toc in the bfd, */ | |
67 | /* we want to record that fact in a fixup file (if it is asked for), so */ | |
68 | /* we keep track of whether or not an address has been written by marking */ | |
69 | /* the low order bit with a "1" upon writing */ | |
70 | ||
71 | #define SET_UNALLOCATED(x) ((x) = 1) | |
72 | #define IS_UNALLOCATED(x) ((x) == 1) | |
73 | ||
74 | #define IS_WRITTEN(x) ((x) & 1) | |
75 | #define MARK_AS_WRITTEN(x) ((x) |= 1) | |
76 | #define MAKE_ADDR_AGAIN(x) ((x) &= ~1) | |
77 | ||
78 | ||
79 | /* Turn on this check if you suspect something amiss in the hash tables */ | |
80 | #ifdef DEBUG_HASH | |
81 | ||
82 | /* Need a 7 char string for an eye catcher */ | |
83 | #define EYE "krkjunk" | |
84 | ||
85 | #define HASH_CHECK_DCL char eye_catcher[8]; | |
86 | #define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE) | |
87 | #define HASH_CHECK(addr) \ | |
88 | if (strcmp(addr->eye_catcher, EYE) != 0) \ | |
89 | { \ | |
90 | fprintf(stderr,\ | |
91 | _("File %s, line %d, Hash check failure, bad eye %8s\n"), \ | |
92 | __FILE__, __LINE__, addr->eye_catcher); \ | |
93 | abort(); \ | |
94 | } | |
95 | ||
96 | ||
97 | #else | |
98 | ||
99 | #define HASH_CHECK_DCL | |
100 | #define HASH_CHECK_INIT(ret) | |
101 | #define HASH_CHECK(addr) | |
102 | ||
103 | #endif | |
104 | ||
105 | /* In order not to add an int to every hash table item for every coff | |
106 | linker, we define our own hash table, derived from the coff one */ | |
107 | ||
108 | /* PE linker hash table entries. */ | |
109 | ||
110 | struct ppc_coff_link_hash_entry | |
111 | { | |
112 | struct coff_link_hash_entry root; /* First entry, as required */ | |
113 | ||
114 | /* As we wonder around the relocs, we'll keep the assigned toc_offset | |
115 | here */ | |
116 | bfd_vma toc_offset; /* Our addition, as required */ | |
117 | int symbol_is_glue; | |
118 | unsigned long int glue_insn; | |
119 | ||
120 | HASH_CHECK_DCL | |
121 | }; | |
122 | ||
123 | ||
124 | /* PE linker hash table. */ | |
125 | ||
126 | struct ppc_coff_link_hash_table | |
127 | { | |
128 | struct coff_link_hash_table root; /* First entry, as required */ | |
129 | }; | |
130 | ||
131 | static struct bfd_hash_entry *ppc_coff_link_hash_newfunc | |
132 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, | |
133 | const char *)); | |
134 | static boolean ppc_coff_link_hash_table_init | |
135 | PARAMS ((struct ppc_coff_link_hash_table *, bfd *, | |
136 | struct bfd_hash_entry *(*) (struct bfd_hash_entry *, | |
137 | struct bfd_hash_table *, | |
138 | const char *))); | |
139 | static struct bfd_link_hash_table *ppc_coff_link_hash_table_create | |
140 | PARAMS ((bfd *)); | |
141 | static boolean coff_ppc_relocate_section | |
142 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
143 | struct internal_reloc *, struct internal_syment *, asection **)); | |
144 | static reloc_howto_type *coff_ppc_rtype_to_howto | |
145 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
146 | struct coff_link_hash_entry *, struct internal_syment *, | |
147 | bfd_vma *)); | |
148 | ||
149 | /* Routine to create an entry in the link hash table. */ | |
150 | ||
151 | static struct bfd_hash_entry * | |
152 | ppc_coff_link_hash_newfunc (entry, table, string) | |
153 | struct bfd_hash_entry *entry; | |
154 | struct bfd_hash_table *table; | |
155 | const char *string; | |
156 | { | |
157 | struct ppc_coff_link_hash_entry *ret = | |
158 | (struct ppc_coff_link_hash_entry *) entry; | |
159 | ||
160 | /* Allocate the structure if it has not already been allocated by a | |
161 | subclass. */ | |
162 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) | |
163 | ret = (struct ppc_coff_link_hash_entry *) | |
164 | bfd_hash_allocate (table, | |
165 | sizeof (struct ppc_coff_link_hash_entry)); | |
166 | ||
167 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) | |
168 | return NULL; | |
169 | ||
170 | /* Call the allocation method of the superclass. */ | |
171 | ret = ((struct ppc_coff_link_hash_entry *) | |
172 | _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
173 | table, string)); | |
174 | ||
175 | if (ret) | |
176 | { | |
177 | /* Initialize the local fields. */ | |
178 | SET_UNALLOCATED(ret->toc_offset); | |
179 | ret->symbol_is_glue = 0; | |
180 | ret->glue_insn = 0; | |
181 | ||
182 | HASH_CHECK_INIT(ret); | |
183 | } | |
184 | ||
185 | return (struct bfd_hash_entry *) ret; | |
186 | } | |
187 | ||
188 | /* Initialize a PE linker hash table. */ | |
189 | ||
190 | static boolean | |
191 | ppc_coff_link_hash_table_init (table, abfd, newfunc) | |
192 | struct ppc_coff_link_hash_table *table; | |
193 | bfd *abfd; | |
194 | struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *, | |
195 | struct bfd_hash_table *, | |
196 | const char *)); | |
197 | { | |
198 | return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc); | |
199 | } | |
200 | ||
201 | /* Create a PE linker hash table. */ | |
202 | ||
203 | static struct bfd_link_hash_table * | |
204 | ppc_coff_link_hash_table_create (abfd) | |
205 | bfd *abfd; | |
206 | { | |
207 | struct ppc_coff_link_hash_table *ret; | |
208 | ||
209 | ret = ((struct ppc_coff_link_hash_table *) | |
210 | bfd_alloc (abfd, sizeof (struct ppc_coff_link_hash_table))); | |
211 | if (ret == NULL) | |
212 | return NULL; | |
213 | if (! ppc_coff_link_hash_table_init (ret, abfd, | |
214 | ppc_coff_link_hash_newfunc)) | |
215 | { | |
216 | bfd_release (abfd, ret); | |
217 | return (struct bfd_link_hash_table *) NULL; | |
218 | } | |
219 | return &ret->root.root; | |
220 | } | |
221 | ||
222 | /* Now, tailor coffcode.h to use our hash stuff */ | |
223 | ||
224 | #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create | |
225 | ||
226 | \f | |
227 | /* The nt loader points the toc register to &toc + 32768, in order to */ | |
228 | /* use the complete range of a 16-bit displacement. We have to adjust */ | |
229 | /* for this when we fix up loads displaced off the toc reg. */ | |
230 | #define TOC_LOAD_ADJUSTMENT (-32768) | |
231 | #define TOC_SECTION_NAME ".private.toc" | |
232 | ||
233 | /* The main body of code is in coffcode.h. */ | |
234 | ||
235 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) | |
236 | ||
237 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
238 | from smaller values. Start with zero, widen, *then* decrement. */ | |
239 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
240 | ||
241 | /* these should definitely go in a header file somewhere... */ | |
242 | ||
243 | /* NOP */ | |
244 | #define IMAGE_REL_PPC_ABSOLUTE 0x0000 | |
245 | ||
246 | /* 64-bit address */ | |
247 | #define IMAGE_REL_PPC_ADDR64 0x0001 | |
248 | ||
249 | /* 32-bit address */ | |
250 | #define IMAGE_REL_PPC_ADDR32 0x0002 | |
251 | ||
252 | /* 26-bit address, shifted left 2 (branch absolute) */ | |
253 | #define IMAGE_REL_PPC_ADDR24 0x0003 | |
254 | ||
255 | /* 16-bit address */ | |
256 | #define IMAGE_REL_PPC_ADDR16 0x0004 | |
257 | ||
258 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
259 | #define IMAGE_REL_PPC_ADDR14 0x0005 | |
260 | ||
261 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
262 | #define IMAGE_REL_PPC_REL24 0x0006 | |
263 | ||
264 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
265 | #define IMAGE_REL_PPC_REL14 0x0007 | |
266 | ||
267 | /* 16-bit offset from TOC base */ | |
268 | #define IMAGE_REL_PPC_TOCREL16 0x0008 | |
269 | ||
270 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
271 | #define IMAGE_REL_PPC_TOCREL14 0x0009 | |
272 | ||
273 | /* 32-bit addr w/o image base */ | |
274 | #define IMAGE_REL_PPC_ADDR32NB 0x000A | |
275 | ||
276 | /* va of containing section (as in an image sectionhdr) */ | |
277 | #define IMAGE_REL_PPC_SECREL 0x000B | |
278 | ||
279 | /* sectionheader number */ | |
280 | #define IMAGE_REL_PPC_SECTION 0x000C | |
281 | ||
282 | /* substitute TOC restore instruction iff symbol is glue code */ | |
283 | #define IMAGE_REL_PPC_IFGLUE 0x000D | |
284 | ||
285 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
286 | #define IMAGE_REL_PPC_IMGLUE 0x000E | |
287 | ||
288 | /* va of containing section (limited to 16 bits) */ | |
289 | #define IMAGE_REL_PPC_SECREL16 0x000F | |
290 | ||
291 | /* stuff to handle immediate data when the number of bits in the */ | |
292 | /* data is greater than the number of bits in the immediate field */ | |
293 | /* We need to do (usually) 32 bit arithmetic on 16 bit chunks */ | |
294 | #define IMAGE_REL_PPC_REFHI 0x0010 | |
295 | #define IMAGE_REL_PPC_REFLO 0x0011 | |
296 | #define IMAGE_REL_PPC_PAIR 0x0012 | |
297 | ||
298 | /* This is essentially the same as tocrel16, with TOCDEFN assumed */ | |
299 | #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 | |
300 | ||
301 | /* Flag bits in IMAGE_RELOCATION.TYPE */ | |
302 | ||
303 | /* subtract reloc value rather than adding it */ | |
304 | #define IMAGE_REL_PPC_NEG 0x0100 | |
305 | ||
306 | /* fix branch prediction bit to predict branch taken */ | |
307 | #define IMAGE_REL_PPC_BRTAKEN 0x0200 | |
308 | ||
309 | /* fix branch prediction bit to predict branch not taken */ | |
310 | #define IMAGE_REL_PPC_BRNTAKEN 0x0400 | |
311 | ||
312 | /* toc slot defined in file (or, data in toc) */ | |
313 | #define IMAGE_REL_PPC_TOCDEFN 0x0800 | |
314 | ||
315 | /* masks to isolate above values in IMAGE_RELOCATION.Type */ | |
316 | #define IMAGE_REL_PPC_TYPEMASK 0x00FF | |
317 | #define IMAGE_REL_PPC_FLAGMASK 0x0F00 | |
318 | ||
319 | #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK) | |
320 | #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK) | |
321 | #define EXTRACT_JUNK(x) \ | |
322 | ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK)) | |
323 | ||
324 | \f | |
325 | /* static helper functions to make relocation work */ | |
326 | /* (Work In Progress) */ | |
327 | ||
328 | static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd, | |
329 | arelent *reloc, | |
330 | asymbol *symbol, | |
331 | PTR data, | |
332 | asection *section, | |
333 | bfd *output_bfd, | |
334 | char **error)); | |
335 | #if 0 | |
336 | static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd, | |
337 | arelent *reloc, | |
338 | asymbol *symbol, | |
339 | PTR data, | |
340 | asection *section, | |
341 | bfd *output_bfd, | |
342 | char **error)); | |
343 | #endif | |
344 | static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd, | |
345 | arelent *reloc, | |
346 | asymbol *symbol, | |
347 | PTR data, | |
348 | asection *section, | |
349 | bfd *output_bfd, | |
350 | char **error)); | |
351 | ||
352 | \f | |
353 | static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd, | |
354 | arelent *reloc, | |
355 | asymbol *symbol, | |
356 | PTR data, | |
357 | asection *section, | |
358 | bfd *output_bfd, | |
359 | char **error)); | |
360 | ||
361 | #if 0 | |
362 | static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd, | |
363 | arelent *reloc, | |
364 | asymbol *symbol, | |
365 | PTR data, | |
366 | asection *section, | |
367 | bfd *output_bfd, | |
368 | char **error)); | |
369 | #endif | |
370 | static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd, | |
371 | arelent *reloc, | |
372 | asymbol *symbol, | |
373 | PTR data, | |
374 | asection *section, | |
375 | bfd *output_bfd, | |
376 | char **error)); | |
377 | ||
378 | static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd, | |
379 | arelent *reloc, | |
380 | asymbol *symbol, | |
381 | PTR data, | |
382 | asection *section, | |
383 | bfd *output_bfd, | |
384 | char **error)); | |
385 | ||
386 | static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd, | |
387 | arelent *reloc, | |
388 | asymbol *symbol, | |
389 | PTR data, | |
390 | asection *section, | |
391 | bfd *output_bfd, | |
392 | char **error)); | |
393 | ||
394 | ||
395 | ||
396 | static boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto)); | |
397 | ||
398 | \f | |
399 | /* FIXME: It'll take a while to get through all of these. I only need a few to | |
400 | get us started, so those I'll make sure work. Those marked FIXME are either | |
401 | completely unverified or have a specific unknown marked in the comment */ | |
402 | ||
403 | /*---------------------------------------------------------------------------*/ | |
404 | /* */ | |
405 | /* Relocation entries for Windows/NT on PowerPC. */ | |
406 | /* */ | |
407 | /* From the document "" we find the following listed as used relocs: */ | |
408 | /* */ | |
409 | /* ABSOLUTE : The noop */ | |
410 | /* ADDR[64|32|16] : fields that hold addresses in data fields or the */ | |
411 | /* 16 bit displacement field on a load/store. */ | |
412 | /* ADDR[24|14] : fields that hold addresses in branch and cond */ | |
413 | /* branches. These represent [26|16] bit addresses. */ | |
414 | /* The low order 2 bits are preserved. */ | |
415 | /* REL[24|14] : branches relative to the Instruction Address */ | |
416 | /* register. These represent [26|16] bit addresses, */ | |
417 | /* as before. The instruction field will be zero, and */ | |
418 | /* the address of the SYM will be inserted at link time. */ | |
419 | /* TOCREL16 : 16 bit displacement field referring to a slot in */ | |
420 | /* toc. */ | |
421 | /* TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. */ | |
422 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ | |
423 | /* (On the alpha, this is always a linker generated thunk)*/ | |
424 | /* (i.e. 32bit addr relative to the image base) */ | |
425 | /* SECREL : The value is relative to the start of the section */ | |
426 | /* containing the symbol. */ | |
427 | /* SECTION : access to the header containing the item. Supports the */ | |
428 | /* codeview debugger. */ | |
429 | /* */ | |
430 | /* In particular, note that the document does not indicate that the */ | |
431 | /* relocations listed in the header file are used. */ | |
432 | /* */ | |
433 | /* */ | |
434 | /* */ | |
435 | /*---------------------------------------------------------------------------*/ | |
436 | ||
437 | static reloc_howto_type ppc_coff_howto_table[] = | |
438 | { | |
439 | /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */ | |
440 | /* Unused: */ | |
441 | HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */ | |
442 | 0, /* rightshift */ | |
443 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
444 | 0, /* bitsize */ | |
445 | false, /* pc_relative */ | |
446 | 0, /* bitpos */ | |
447 | complain_overflow_dont, /* dont complain_on_overflow */ | |
448 | 0, /* special_function */ | |
449 | "ABSOLUTE", /* name */ | |
450 | false, /* partial_inplace */ | |
451 | 0x00, /* src_mask */ | |
452 | 0x00, /* dst_mask */ | |
453 | false), /* pcrel_offset */ | |
454 | ||
455 | /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */ | |
456 | /* Unused: */ | |
457 | HOWTO(IMAGE_REL_PPC_ADDR64, /* type */ | |
458 | 0, /* rightshift */ | |
459 | 3, /* size (0 = byte, 1 = short, 2 = long) */ | |
460 | 64, /* bitsize */ | |
461 | false, /* pc_relative */ | |
462 | 0, /* bitpos */ | |
463 | complain_overflow_bitfield, /* complain_on_overflow */ | |
464 | 0, /* special_function */ | |
465 | "ADDR64", /* name */ | |
466 | true, /* partial_inplace */ | |
467 | MINUS_ONE, /* src_mask */ | |
468 | MINUS_ONE, /* dst_mask */ | |
469 | false), /* pcrel_offset */ | |
470 | ||
471 | /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */ | |
472 | /* Used: */ | |
473 | HOWTO (IMAGE_REL_PPC_ADDR32, /* type */ | |
474 | 0, /* rightshift */ | |
475 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
476 | 32, /* bitsize */ | |
477 | false, /* pc_relative */ | |
478 | 0, /* bitpos */ | |
479 | complain_overflow_bitfield, /* complain_on_overflow */ | |
480 | 0, /* special_function */ | |
481 | "ADDR32", /* name */ | |
482 | true, /* partial_inplace */ | |
483 | 0xffffffff, /* src_mask */ | |
484 | 0xffffffff, /* dst_mask */ | |
485 | false), /* pcrel_offset */ | |
486 | ||
487 | /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */ | |
488 | /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */ | |
489 | /* Of course, That's the IBM approved bit numbering, which is not what */ | |
490 | /* anyone else uses.... The li field is in bit 2 thru 25 */ | |
491 | /* Used: */ | |
492 | HOWTO (IMAGE_REL_PPC_ADDR24, /* type */ | |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 26, /* bitsize */ | |
496 | false, /* pc_relative */ | |
497 | 0, /* bitpos */ | |
498 | complain_overflow_bitfield, /* complain_on_overflow */ | |
499 | 0, /* special_function */ | |
500 | "ADDR24", /* name */ | |
501 | true, /* partial_inplace */ | |
502 | 0x07fffffc, /* src_mask */ | |
503 | 0x07fffffc, /* dst_mask */ | |
504 | false), /* pcrel_offset */ | |
505 | ||
506 | /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */ | |
507 | /* Used: */ | |
508 | HOWTO (IMAGE_REL_PPC_ADDR16, /* type */ | |
509 | 0, /* rightshift */ | |
510 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
511 | 16, /* bitsize */ | |
512 | false, /* pc_relative */ | |
513 | 0, /* bitpos */ | |
514 | complain_overflow_signed, /* complain_on_overflow */ | |
515 | 0, /* special_function */ | |
516 | "ADDR16", /* name */ | |
517 | true, /* partial_inplace */ | |
518 | 0xffff, /* src_mask */ | |
519 | 0xffff, /* dst_mask */ | |
520 | false), /* pcrel_offset */ | |
521 | ||
522 | /* IMAGE_REL_PPC_ADDR14 0x0005 */ | |
523 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
524 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
525 | /* Unused: */ | |
526 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ | |
527 | 1, /* rightshift */ | |
528 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
529 | 16, /* bitsize */ | |
530 | false, /* pc_relative */ | |
531 | 0, /* bitpos */ | |
532 | complain_overflow_signed, /* complain_on_overflow */ | |
533 | 0, /* special_function */ | |
534 | "ADDR16", /* name */ | |
535 | true, /* partial_inplace */ | |
536 | 0xffff, /* src_mask */ | |
537 | 0xffff, /* dst_mask */ | |
538 | false), /* pcrel_offset */ | |
539 | ||
540 | /* IMAGE_REL_PPC_REL24 0x0006 */ | |
541 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
542 | /* Used: */ | |
543 | HOWTO (IMAGE_REL_PPC_REL24, /* type */ | |
544 | 0, /* rightshift */ | |
545 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
546 | 26, /* bitsize */ | |
547 | true, /* pc_relative */ | |
548 | 0, /* bitpos */ | |
549 | complain_overflow_signed, /* complain_on_overflow */ | |
550 | 0, /* special_function */ | |
551 | "REL24", /* name */ | |
552 | true, /* partial_inplace */ | |
553 | 0x3fffffc, /* src_mask */ | |
554 | 0x3fffffc, /* dst_mask */ | |
555 | false), /* pcrel_offset */ | |
556 | ||
557 | /* IMAGE_REL_PPC_REL14 0x0007 */ | |
558 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
559 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
560 | /* FIXME: how does it know how far to shift? */ | |
561 | /* Unused: */ | |
562 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ | |
563 | 1, /* rightshift */ | |
564 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
565 | 16, /* bitsize */ | |
566 | false, /* pc_relative */ | |
567 | 0, /* bitpos */ | |
568 | complain_overflow_signed, /* complain_on_overflow */ | |
569 | 0, /* special_function */ | |
570 | "ADDR16", /* name */ | |
571 | true, /* partial_inplace */ | |
572 | 0xffff, /* src_mask */ | |
573 | 0xffff, /* dst_mask */ | |
574 | true), /* pcrel_offset */ | |
575 | ||
576 | /* IMAGE_REL_PPC_TOCREL16 0x0008 */ | |
577 | /* 16-bit offset from TOC base */ | |
578 | /* Used: */ | |
579 | HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */ | |
580 | 0, /* rightshift */ | |
581 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
582 | 16, /* bitsize */ | |
583 | false, /* pc_relative */ | |
584 | 0, /* bitpos */ | |
585 | complain_overflow_dont, /* complain_on_overflow */ | |
586 | ppc_toc16_reloc, /* special_function */ | |
587 | "TOCREL16", /* name */ | |
588 | false, /* partial_inplace */ | |
589 | 0xffff, /* src_mask */ | |
590 | 0xffff, /* dst_mask */ | |
591 | false), /* pcrel_offset */ | |
592 | ||
593 | /* IMAGE_REL_PPC_TOCREL14 0x0009 */ | |
594 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
595 | /* Unused: */ | |
596 | HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */ | |
597 | 1, /* rightshift */ | |
598 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
599 | 16, /* bitsize */ | |
600 | false, /* pc_relative */ | |
601 | 0, /* bitpos */ | |
602 | complain_overflow_signed, /* complain_on_overflow */ | |
603 | 0, /* special_function */ | |
604 | "TOCREL14", /* name */ | |
605 | false, /* partial_inplace */ | |
606 | 0xffff, /* src_mask */ | |
607 | 0xffff, /* dst_mask */ | |
608 | false), /* pcrel_offset */ | |
609 | ||
610 | /* IMAGE_REL_PPC_ADDR32NB 0x000A */ | |
611 | /* 32-bit addr w/ image base */ | |
612 | /* Unused: */ | |
613 | HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */ | |
614 | 0, /* rightshift */ | |
615 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
616 | 32, /* bitsize */ | |
617 | false, /* pc_relative */ | |
618 | 0, /* bitpos */ | |
619 | complain_overflow_signed, /* complain_on_overflow */ | |
620 | 0, /* special_function */ | |
621 | "ADDR32NB", /* name */ | |
622 | true, /* partial_inplace */ | |
623 | 0xffffffff, /* src_mask */ | |
624 | 0xffffffff, /* dst_mask */ | |
625 | false), /* pcrel_offset */ | |
626 | ||
627 | /* IMAGE_REL_PPC_SECREL 0x000B */ | |
628 | /* va of containing section (as in an image sectionhdr) */ | |
629 | /* Unused: */ | |
630 | HOWTO (IMAGE_REL_PPC_SECREL,/* type */ | |
631 | 0, /* rightshift */ | |
632 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
633 | 32, /* bitsize */ | |
634 | false, /* pc_relative */ | |
635 | 0, /* bitpos */ | |
636 | complain_overflow_signed, /* complain_on_overflow */ | |
637 | ppc_secrel_reloc, /* special_function */ | |
638 | "SECREL", /* name */ | |
639 | true, /* partial_inplace */ | |
640 | 0xffffffff, /* src_mask */ | |
641 | 0xffffffff, /* dst_mask */ | |
642 | true), /* pcrel_offset */ | |
643 | ||
644 | /* IMAGE_REL_PPC_SECTION 0x000C */ | |
645 | /* sectionheader number */ | |
646 | /* Unused: */ | |
647 | HOWTO (IMAGE_REL_PPC_SECTION,/* type */ | |
648 | 0, /* rightshift */ | |
649 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
650 | 32, /* bitsize */ | |
651 | false, /* pc_relative */ | |
652 | 0, /* bitpos */ | |
653 | complain_overflow_signed, /* complain_on_overflow */ | |
654 | ppc_section_reloc, /* special_function */ | |
655 | "SECTION", /* name */ | |
656 | true, /* partial_inplace */ | |
657 | 0xffffffff, /* src_mask */ | |
658 | 0xffffffff, /* dst_mask */ | |
659 | true), /* pcrel_offset */ | |
660 | ||
661 | /* IMAGE_REL_PPC_IFGLUE 0x000D */ | |
662 | /* substitute TOC restore instruction iff symbol is glue code */ | |
663 | /* Used: */ | |
664 | HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */ | |
665 | 0, /* rightshift */ | |
666 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
667 | 32, /* bitsize */ | |
668 | false, /* pc_relative */ | |
669 | 0, /* bitpos */ | |
670 | complain_overflow_signed, /* complain_on_overflow */ | |
671 | 0, /* special_function */ | |
672 | "IFGLUE", /* name */ | |
673 | true, /* partial_inplace */ | |
674 | 0xffffffff, /* src_mask */ | |
675 | 0xffffffff, /* dst_mask */ | |
676 | false), /* pcrel_offset */ | |
677 | ||
678 | /* IMAGE_REL_PPC_IMGLUE 0x000E */ | |
679 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
680 | /* Unused: */ | |
681 | HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */ | |
682 | 0, /* rightshift */ | |
683 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
684 | 32, /* bitsize */ | |
685 | false, /* pc_relative */ | |
686 | 0, /* bitpos */ | |
687 | complain_overflow_dont, /* complain_on_overflow */ | |
688 | ppc_imglue_reloc, /* special_function */ | |
689 | "IMGLUE", /* name */ | |
690 | false, /* partial_inplace */ | |
691 | 0xffffffff, /* src_mask */ | |
692 | 0xffffffff, /* dst_mask */ | |
693 | false), /* pcrel_offset */ | |
694 | ||
695 | /* IMAGE_REL_PPC_SECREL16 0x000F */ | |
696 | /* va of containing section (limited to 16 bits) */ | |
697 | /* Unused: */ | |
698 | HOWTO (IMAGE_REL_PPC_SECREL16,/* type */ | |
699 | 0, /* rightshift */ | |
700 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
701 | 16, /* bitsize */ | |
702 | false, /* pc_relative */ | |
703 | 0, /* bitpos */ | |
704 | complain_overflow_signed, /* complain_on_overflow */ | |
705 | 0, /* special_function */ | |
706 | "SECREL16", /* name */ | |
707 | true, /* partial_inplace */ | |
708 | 0xffff, /* src_mask */ | |
709 | 0xffff, /* dst_mask */ | |
710 | true), /* pcrel_offset */ | |
711 | ||
712 | /* IMAGE_REL_PPC_REFHI 0x0010 */ | |
713 | /* Unused: */ | |
714 | HOWTO (IMAGE_REL_PPC_REFHI, /* type */ | |
715 | 0, /* rightshift */ | |
716 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
717 | 16, /* bitsize */ | |
718 | false, /* pc_relative */ | |
719 | 0, /* bitpos */ | |
720 | complain_overflow_signed, /* complain_on_overflow */ | |
721 | ppc_refhi_reloc, /* special_function */ | |
722 | "REFHI", /* name */ | |
723 | true, /* partial_inplace */ | |
724 | 0xffffffff, /* src_mask */ | |
725 | 0xffffffff, /* dst_mask */ | |
726 | false), /* pcrel_offset */ | |
727 | ||
728 | /* IMAGE_REL_PPC_REFLO 0x0011 */ | |
729 | /* Unused: */ | |
730 | HOWTO (IMAGE_REL_PPC_REFLO, /* type */ | |
731 | 0, /* rightshift */ | |
732 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
733 | 16, /* bitsize */ | |
734 | false, /* pc_relative */ | |
735 | 0, /* bitpos */ | |
736 | complain_overflow_signed, /* complain_on_overflow */ | |
737 | ppc_refhi_reloc, /* special_function */ | |
738 | "REFLO", /* name */ | |
739 | true, /* partial_inplace */ | |
740 | 0xffffffff, /* src_mask */ | |
741 | 0xffffffff, /* dst_mask */ | |
742 | false), /* pcrel_offset */ | |
743 | ||
744 | /* IMAGE_REL_PPC_PAIR 0x0012 */ | |
745 | /* Unused: */ | |
746 | HOWTO (IMAGE_REL_PPC_PAIR, /* type */ | |
747 | 0, /* rightshift */ | |
748 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
749 | 16, /* bitsize */ | |
750 | false, /* pc_relative */ | |
751 | 0, /* bitpos */ | |
752 | complain_overflow_signed, /* complain_on_overflow */ | |
753 | ppc_pair_reloc, /* special_function */ | |
754 | "PAIR", /* name */ | |
755 | true, /* partial_inplace */ | |
756 | 0xffffffff, /* src_mask */ | |
757 | 0xffffffff, /* dst_mask */ | |
758 | false), /* pcrel_offset */ | |
759 | ||
760 | /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */ | |
761 | /* 16-bit offset from TOC base, without causing a definition */ | |
762 | /* Used: */ | |
763 | HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */ | |
764 | 0, /* rightshift */ | |
765 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
766 | 16, /* bitsize */ | |
767 | false, /* pc_relative */ | |
768 | 0, /* bitpos */ | |
769 | complain_overflow_dont, /* complain_on_overflow */ | |
770 | 0, /* special_function */ | |
771 | "TOCREL16, TOCDEFN", /* name */ | |
772 | false, /* partial_inplace */ | |
773 | 0xffff, /* src_mask */ | |
774 | 0xffff, /* dst_mask */ | |
775 | false), /* pcrel_offset */ | |
776 | ||
777 | }; | |
778 | ||
779 | ||
780 | \f | |
781 | ||
782 | /* Some really cheezy macros that can be turned on to test stderr :-) */ | |
783 | ||
784 | #ifdef DEBUG_RELOC | |
785 | #define UN_IMPL(x) \ | |
786 | { \ | |
787 | static int i; \ | |
788 | if (i == 0) \ | |
789 | { \ | |
790 | i = 1; \ | |
791 | fprintf(stderr,_("Unimplemented Relocation -- %s\n"),x); \ | |
792 | } \ | |
793 | } | |
794 | ||
795 | #define DUMP_RELOC(n,r) \ | |
796 | { \ | |
797 | fprintf(stderr,"%s sym %d, addr %d, addend %d\n", \ | |
798 | n, (*(r->sym_ptr_ptr))->name, \ | |
799 | r->address, r->addend); \ | |
800 | } | |
801 | ||
802 | /* Given a reloc name, n, and a pointer to an internal_reloc, | |
803 | dump out interesting information on the contents | |
804 | ||
805 | #define n_name _n._n_name | |
806 | #define n_zeroes _n._n_n._n_zeroes | |
807 | #define n_offset _n._n_n._n_offset | |
808 | ||
809 | */ | |
810 | ||
811 | #define DUMP_RELOC2(n,r) \ | |
812 | { \ | |
813 | fprintf(stderr,"%s sym %d, r_vaddr %d %s\n", \ | |
814 | n, r->r_symndx, r->r_vaddr,\ | |
815 | (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \ | |
816 | ?" ":" TOCDEFN" ); \ | |
817 | } | |
818 | ||
819 | #else | |
820 | #define UN_IMPL(x) | |
821 | #define DUMP_RELOC(n,r) | |
822 | #define DUMP_RELOC2(n,r) | |
823 | #endif | |
824 | ||
825 | ||
826 | \f | |
827 | /* toc construction and management routines */ | |
828 | ||
829 | /* This file is compiled twice, and these variables are defined in one | |
830 | of the compilations. FIXME: This is confusing and weird. Also, | |
831 | BFD should not use global variables. */ | |
832 | extern bfd* bfd_of_toc_owner; | |
833 | extern long int global_toc_size; | |
834 | ||
835 | extern long int import_table_size; | |
836 | extern long int first_thunk_address; | |
837 | extern long int thunk_size; | |
838 | ||
839 | enum toc_type | |
840 | { | |
841 | default_toc, | |
842 | toc_32, | |
843 | toc_64 | |
844 | }; | |
845 | ||
846 | enum ref_category | |
847 | { | |
848 | priv, | |
849 | pub, | |
850 | data | |
851 | }; | |
852 | ||
853 | struct list_ele | |
854 | { | |
855 | struct list_ele *next; | |
856 | bfd_vma addr; | |
857 | enum ref_category cat; | |
858 | int offset; | |
859 | const char *name; | |
860 | }; | |
861 | ||
862 | extern struct list_ele *head; | |
863 | extern struct list_ele *tail; | |
864 | ||
865 | static void record_toc | |
866 | PARAMS ((asection *, int, enum ref_category, const char *)); | |
867 | ||
868 | static void | |
869 | record_toc (toc_section, our_toc_offset, cat, name) | |
870 | asection *toc_section; | |
871 | int our_toc_offset; | |
872 | enum ref_category cat; | |
873 | const char *name; | |
874 | { | |
875 | /* add this entry to our toc addr-offset-name list */ | |
876 | struct list_ele *t; | |
877 | t = (struct list_ele *) bfd_malloc (sizeof (struct list_ele)); | |
878 | if (t == NULL) | |
879 | abort (); | |
880 | t->next = 0; | |
881 | t->offset = our_toc_offset; | |
882 | t->name = name; | |
883 | t->cat = cat; | |
884 | t->addr = toc_section->output_offset + our_toc_offset; | |
885 | ||
886 | if (head == 0) | |
887 | { | |
888 | head = t; | |
889 | tail = t; | |
890 | } | |
891 | else | |
892 | { | |
893 | tail->next = t; | |
894 | tail = t; | |
895 | } | |
896 | } | |
897 | ||
898 | #ifdef COFF_IMAGE_WITH_PE | |
899 | ||
900 | static boolean ppc_record_toc_entry | |
901 | PARAMS ((bfd *, struct bfd_link_info *, asection *, int, enum toc_type)); | |
902 | static void ppc_mark_symbol_as_glue | |
903 | PARAMS ((bfd *, int, struct internal_reloc *)); | |
904 | ||
905 | /* record a toc offset against a symbol */ | |
906 | static boolean | |
907 | ppc_record_toc_entry(abfd, info, sec, sym, toc_kind) | |
908 | bfd *abfd; | |
5f771d47 ILT |
909 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
910 | asection *sec ATTRIBUTE_UNUSED; | |
252b5132 | 911 | int sym; |
5f771d47 | 912 | enum toc_type toc_kind ATTRIBUTE_UNUSED; |
252b5132 RH |
913 | { |
914 | struct ppc_coff_link_hash_entry *h; | |
915 | const char *name; | |
916 | ||
917 | int *local_syms; | |
918 | ||
919 | h = 0; | |
920 | ||
921 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
922 | if (h != 0) | |
923 | { | |
924 | HASH_CHECK(h); | |
925 | } | |
926 | ||
927 | if (h == 0) | |
928 | { | |
929 | local_syms = obj_coff_local_toc_table(abfd); | |
930 | if (local_syms == 0) | |
931 | { | |
932 | unsigned int i; | |
933 | /* allocate a table */ | |
934 | local_syms = | |
935 | (int *) bfd_zalloc (abfd, | |
936 | obj_raw_syment_count(abfd) * sizeof(int)); | |
937 | if (local_syms == 0) | |
938 | return false; | |
939 | obj_coff_local_toc_table(abfd) = local_syms; | |
940 | for (i = 0; i < obj_raw_syment_count(abfd); ++i) | |
941 | { | |
942 | SET_UNALLOCATED(local_syms[i]); | |
943 | } | |
944 | } | |
945 | ||
946 | if (IS_UNALLOCATED(local_syms[sym])) | |
947 | { | |
948 | local_syms[sym] = global_toc_size; | |
949 | global_toc_size += 4; | |
950 | ||
951 | /* The size must fit in a 16bit displacment */ | |
952 | if (global_toc_size > 65535) | |
953 | { | |
954 | (*_bfd_error_handler) (_("TOC overflow")); | |
955 | bfd_set_error (bfd_error_file_too_big); | |
956 | return false; | |
957 | } | |
958 | } | |
959 | } | |
960 | else | |
961 | { | |
962 | name = h->root.root.root.string; | |
963 | ||
964 | /* check to see if there's a toc slot allocated. If not, do it | |
965 | here. It will be used in relocate_section */ | |
966 | if (IS_UNALLOCATED(h->toc_offset)) | |
967 | { | |
968 | h->toc_offset = global_toc_size; | |
969 | global_toc_size += 4; | |
970 | ||
971 | /* The size must fit in a 16bit displacment */ | |
972 | if (global_toc_size >= 65535) | |
973 | { | |
974 | (*_bfd_error_handler) (_("TOC overflow")); | |
975 | bfd_set_error (bfd_error_file_too_big); | |
976 | return false; | |
977 | } | |
978 | } | |
979 | } | |
980 | ||
981 | return true; | |
982 | } | |
983 | ||
984 | /* record a toc offset against a symbol */ | |
985 | static void | |
986 | ppc_mark_symbol_as_glue(abfd, sym, rel) | |
987 | bfd *abfd; | |
988 | int sym; | |
989 | struct internal_reloc *rel; | |
990 | { | |
991 | struct ppc_coff_link_hash_entry *h; | |
992 | ||
993 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
994 | ||
995 | HASH_CHECK(h); | |
996 | ||
997 | h->symbol_is_glue = 1; | |
998 | h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr); | |
999 | ||
1000 | return; | |
1001 | } | |
1002 | ||
1003 | #endif /* COFF_IMAGE_WITH_PE */ | |
1004 | \f | |
1005 | ||
1006 | /* Return true if this relocation should | |
1007 | appear in the output .reloc section. */ | |
1008 | ||
1009 | static boolean in_reloc_p(abfd, howto) | |
5f771d47 | 1010 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1011 | reloc_howto_type *howto; |
1012 | { | |
1013 | return | |
1014 | (! howto->pc_relative) | |
1015 | && (howto->type != IMAGE_REL_PPC_ADDR32NB) | |
1016 | && (howto->type != IMAGE_REL_PPC_TOCREL16) | |
1017 | && (howto->type != IMAGE_REL_PPC_IMGLUE) | |
1018 | && (howto->type != IMAGE_REL_PPC_IFGLUE) | |
1019 | && (howto->type != IMAGE_REL_PPC_SECREL) | |
1020 | && (howto->type != IMAGE_REL_PPC_SECTION) | |
1021 | && (howto->type != IMAGE_REL_PPC_SECREL16) | |
1022 | && (howto->type != IMAGE_REL_PPC_REFHI) | |
1023 | && (howto->type != IMAGE_REL_PPC_REFLO) | |
1024 | && (howto->type != IMAGE_REL_PPC_PAIR) | |
1025 | && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ; | |
1026 | } | |
1027 | ||
1028 | #if 0 | |
1029 | ||
1030 | /* this function is in charge of performing all the ppc PE relocations */ | |
1031 | /* Don't yet know if we want to do this this particular way ... (krk) */ | |
1032 | /* FIXME: (it is not yet enabled) */ | |
1033 | ||
1034 | static bfd_reloc_status_type | |
1035 | pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
1036 | error_message) | |
1037 | bfd *abfd; | |
1038 | arelent *reloc_entry; | |
1039 | asymbol *symbol_in; | |
1040 | PTR data; | |
1041 | asection *input_section; | |
1042 | bfd *output_bfd; | |
1043 | char **error_message; | |
1044 | { | |
1045 | /* the consth relocation comes in two parts, we have to remember | |
1046 | the state between calls, in these variables */ | |
1047 | static boolean part1_consth_active = false; | |
1048 | static unsigned long part1_consth_value; | |
1049 | ||
1050 | unsigned long sym_value; | |
1051 | unsigned short r_type; | |
1052 | unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/ | |
1053 | ||
1054 | r_type = reloc_entry->howto->type; | |
1055 | ||
1056 | if (output_bfd) | |
1057 | { | |
1058 | /* Partial linking - do nothing */ | |
1059 | reloc_entry->address += input_section->output_offset; | |
1060 | return bfd_reloc_ok; | |
1061 | } | |
1062 | ||
1063 | if (symbol_in != NULL | |
1064 | && bfd_is_und_section (symbol_in->section)) | |
1065 | { | |
1066 | /* Keep the state machine happy in case we're called again */ | |
1067 | if (r_type == IMAGE_REL_PPC_REFHI) | |
1068 | { | |
1069 | part1_consth_active = true; | |
1070 | part1_consth_value = 0; | |
1071 | } | |
1072 | return(bfd_reloc_undefined); | |
1073 | } | |
1074 | ||
1075 | if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR)) | |
1076 | { | |
1077 | part1_consth_active = false; | |
1078 | *error_message = (char *) _("Missing PAIR"); | |
1079 | return(bfd_reloc_dangerous); | |
1080 | } | |
1081 | ||
1082 | ||
1083 | sym_value = get_symbol_value(symbol_in); | |
1084 | ||
1085 | return(bfd_reloc_ok); | |
1086 | } | |
1087 | ||
1088 | #endif /* 0 */ | |
1089 | ||
1090 | /* The reloc processing routine for the optimized COFF linker. */ | |
1091 | ||
1092 | static boolean | |
1093 | coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section, | |
1094 | contents, relocs, syms, sections) | |
1095 | bfd *output_bfd; | |
1096 | struct bfd_link_info *info; | |
1097 | bfd *input_bfd; | |
1098 | asection *input_section; | |
1099 | bfd_byte *contents; | |
1100 | struct internal_reloc *relocs; | |
1101 | struct internal_syment *syms; | |
1102 | asection **sections; | |
1103 | { | |
1104 | struct internal_reloc *rel; | |
1105 | struct internal_reloc *relend; | |
1106 | boolean hihalf; | |
1107 | bfd_vma hihalf_val; | |
1108 | asection *toc_section = 0; | |
1109 | bfd_vma relocation; | |
1110 | reloc_howto_type *howto = 0; | |
1111 | ||
1112 | /* If we are performing a relocateable link, we don't need to do a | |
1113 | thing. The caller will take care of adjusting the reloc | |
1114 | addresses and symbol indices. */ | |
1115 | if (info->relocateable) | |
1116 | return true; | |
1117 | ||
1118 | hihalf = false; | |
1119 | hihalf_val = 0; | |
1120 | ||
1121 | rel = relocs; | |
1122 | relend = rel + input_section->reloc_count; | |
1123 | for (; rel < relend; rel++) | |
1124 | { | |
1125 | long symndx; | |
1126 | struct ppc_coff_link_hash_entry *h; | |
1127 | struct internal_syment *sym; | |
1128 | bfd_vma val; | |
1129 | ||
1130 | asection *sec; | |
1131 | bfd_reloc_status_type rstat; | |
1132 | bfd_byte *loc; | |
1133 | ||
1134 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1135 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
1136 | ||
1137 | symndx = rel->r_symndx; | |
1138 | loc = contents + rel->r_vaddr - input_section->vma; | |
1139 | ||
1140 | /* FIXME: check bounds on r_type */ | |
1141 | howto = ppc_coff_howto_table + r_type; | |
1142 | ||
1143 | if (symndx == -1) | |
1144 | { | |
1145 | h = NULL; | |
1146 | sym = NULL; | |
1147 | } | |
1148 | else | |
1149 | { | |
1150 | h = (struct ppc_coff_link_hash_entry *) | |
1151 | (obj_coff_sym_hashes (input_bfd)[symndx]); | |
1152 | if (h != 0) | |
1153 | { | |
1154 | HASH_CHECK(h); | |
1155 | } | |
1156 | ||
1157 | sym = syms + symndx; | |
1158 | } | |
1159 | ||
1160 | if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0) | |
1161 | { | |
1162 | /* An IMGLUE reloc must have a name. Something is very wrong. */ | |
1163 | abort(); | |
1164 | } | |
1165 | ||
1166 | sec = NULL; | |
1167 | val = 0; | |
1168 | ||
1169 | /* FIXME: PAIR unsupported in the following code */ | |
1170 | if (h == NULL) | |
1171 | { | |
1172 | if (symndx == -1) | |
1173 | sec = bfd_abs_section_ptr; | |
1174 | else | |
1175 | { | |
1176 | sec = sections[symndx]; | |
1177 | val = (sec->output_section->vma | |
1178 | + sec->output_offset | |
1179 | + sym->n_value); | |
1180 | if (! obj_pe (output_bfd)) | |
1181 | val -= sec->vma; | |
1182 | } | |
1183 | } | |
1184 | else | |
1185 | { | |
1186 | HASH_CHECK(h); | |
1187 | ||
1188 | if (h->root.root.type == bfd_link_hash_defined | |
1189 | || h->root.root.type == bfd_link_hash_defweak) | |
1190 | { | |
1191 | sec = h->root.root.u.def.section; | |
1192 | val = (h->root.root.u.def.value | |
1193 | + sec->output_section->vma | |
1194 | + sec->output_offset); | |
1195 | } | |
1196 | else | |
1197 | { | |
1198 | if (! ((*info->callbacks->undefined_symbol) | |
1199 | (info, h->root.root.root.string, input_bfd, input_section, | |
1200 | rel->r_vaddr - input_section->vma))) | |
1201 | return false; | |
1202 | } | |
1203 | } | |
1204 | ||
1205 | rstat = bfd_reloc_ok; | |
1206 | ||
1207 | /* Each case must do its own relocation, setting rstat appropriately */ | |
1208 | switch (r_type) | |
1209 | { | |
1210 | default: | |
1211 | (*_bfd_error_handler) | |
1212 | (_("%s: unsupported relocation type 0x%02x"), | |
1213 | bfd_get_filename (input_bfd), r_type); | |
1214 | bfd_set_error (bfd_error_bad_value); | |
1215 | return false; | |
1216 | case IMAGE_REL_PPC_TOCREL16: | |
1217 | { | |
1218 | bfd_vma our_toc_offset; | |
1219 | int fixit; | |
1220 | ||
1221 | DUMP_RELOC2(howto->name, rel); | |
1222 | ||
1223 | if (toc_section == 0) | |
1224 | { | |
1225 | toc_section = bfd_get_section_by_name (bfd_of_toc_owner, | |
1226 | TOC_SECTION_NAME); | |
1227 | ||
1228 | if ( toc_section == NULL ) | |
1229 | { | |
1230 | /* There is no toc section. Something is very wrong. */ | |
1231 | abort(); | |
1232 | } | |
1233 | } | |
1234 | ||
1235 | /* | |
1236 | * Amazing bit tricks present. As we may have seen earlier, we | |
1237 | * use the 1 bit to tell us whether or not a toc offset has been | |
1238 | * allocated. Now that they've all been allocated, we will use | |
1239 | * the 1 bit to tell us if we've written this particular toc | |
1240 | * entry out. | |
1241 | */ | |
1242 | fixit = false; | |
1243 | if (h == 0) | |
1244 | { /* it is a file local symbol */ | |
1245 | int *local_toc_table; | |
1246 | const char *name; | |
1247 | ||
1248 | sym = syms + symndx; | |
1249 | name = sym->_n._n_name; | |
1250 | ||
1251 | local_toc_table = obj_coff_local_toc_table(input_bfd); | |
1252 | our_toc_offset = local_toc_table[symndx]; | |
1253 | ||
1254 | if (IS_WRITTEN(our_toc_offset)) | |
1255 | { | |
1256 | /* if it has been written out, it is marked with the | |
1257 | 1 bit. Fix up our offset, but do not write it out | |
1258 | again. | |
1259 | */ | |
1260 | MAKE_ADDR_AGAIN(our_toc_offset); | |
1261 | } | |
1262 | else | |
1263 | { | |
1264 | /* write out the toc entry */ | |
1265 | record_toc(toc_section, | |
1266 | our_toc_offset, | |
1267 | priv, | |
1268 | strdup(name)); | |
1269 | ||
1270 | bfd_put_32(output_bfd, | |
1271 | val, | |
1272 | toc_section->contents + our_toc_offset); | |
1273 | ||
1274 | MARK_AS_WRITTEN(local_toc_table[symndx]); | |
1275 | fixit = true; | |
1276 | } | |
1277 | } | |
1278 | else | |
1279 | { | |
1280 | const char *name = h->root.root.root.string; | |
1281 | our_toc_offset = h->toc_offset; | |
1282 | ||
1283 | if ((r_flags & IMAGE_REL_PPC_TOCDEFN) | |
1284 | == IMAGE_REL_PPC_TOCDEFN ) | |
1285 | { | |
1286 | /* This is unbelievable cheese. Some knowledgable asm | |
1287 | hacker has decided to use r2 as a base for loading | |
1288 | a value. He/She does this by setting the tocdefn bit, | |
1289 | and not supplying a toc definition. The behaviour is | |
1290 | then to use the difference between the value of the | |
1291 | symbol and the actual location of the toc as the toc | |
1292 | index. | |
1293 | ||
1294 | In fact, what is usually happening is, because the | |
1295 | Import Address Table is mapped immediately following | |
1296 | the toc, some trippy library code trying for speed on | |
1297 | dll linkage, takes advantage of that and considers | |
1298 | the IAT to be part of the toc, thus saving a load. | |
1299 | */ | |
1300 | ||
1301 | our_toc_offset = val - | |
1302 | (toc_section->output_section->vma + | |
1303 | toc_section->output_offset); | |
1304 | ||
1305 | /* The size must still fit in a 16bit displacment */ | |
1306 | if (our_toc_offset >= 65535) | |
1307 | { | |
1308 | (*_bfd_error_handler) | |
1309 | (_("%s: Relocation for %s of %x exceeds Toc size limit"), | |
1310 | bfd_get_filename (input_bfd), name, our_toc_offset); | |
1311 | bfd_set_error (bfd_error_bad_value); | |
1312 | return false; | |
1313 | } | |
1314 | ||
1315 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); | |
1316 | } | |
1317 | else if (IS_WRITTEN(our_toc_offset)) | |
1318 | { | |
1319 | /* if it has been written out, it is marked with the | |
1320 | 1 bit. Fix up our offset, but do not write it out | |
1321 | again. | |
1322 | */ | |
1323 | MAKE_ADDR_AGAIN(our_toc_offset); | |
1324 | } | |
1325 | else | |
1326 | { | |
1327 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); | |
1328 | ||
1329 | /* write out the toc entry */ | |
1330 | bfd_put_32(output_bfd, | |
1331 | val, | |
1332 | toc_section->contents + our_toc_offset); | |
1333 | ||
1334 | MARK_AS_WRITTEN(h->toc_offset); | |
1335 | /* The tricky part is that this is the address that */ | |
1336 | /* needs a .reloc entry for it */ | |
1337 | fixit = true; | |
1338 | } | |
1339 | } | |
1340 | ||
1341 | if (fixit && info->base_file) | |
1342 | { | |
1343 | /* So if this is non pcrelative, and is referenced | |
1344 | to a section or a common symbol, then it needs a reloc */ | |
1345 | ||
1346 | /* relocation to a symbol in a section which | |
1347 | isn't absolute - we output the address here | |
1348 | to a file */ | |
1349 | ||
1350 | bfd_vma addr = toc_section->output_section->vma | |
1351 | + toc_section->output_offset + our_toc_offset; | |
1352 | ||
1353 | if (coff_data(output_bfd)->pe) | |
1354 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1355 | ||
1356 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1357 | } | |
1358 | ||
1359 | ||
1360 | /* FIXME: this test is conservative */ | |
1361 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN && | |
1362 | our_toc_offset > toc_section->_raw_size) | |
1363 | { | |
1364 | (*_bfd_error_handler) | |
1365 | (_("%s: Relocation exceeds allocated TOC (%x)"), | |
1366 | bfd_get_filename (input_bfd), | |
1367 | toc_section->_raw_size); | |
1368 | bfd_set_error (bfd_error_bad_value); | |
1369 | return false; | |
1370 | } | |
1371 | ||
1372 | /* Now we know the relocation for this toc reference */ | |
1373 | relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT; | |
1374 | rstat = _bfd_relocate_contents (howto, | |
1375 | input_bfd, | |
1376 | relocation, | |
1377 | loc); | |
1378 | } | |
1379 | break; | |
1380 | case IMAGE_REL_PPC_IFGLUE: | |
1381 | { | |
1382 | /* To solve this, we need to know whether or not the symbol */ | |
1383 | /* appearing on the call instruction is a glue function or not. */ | |
1384 | /* A glue function must announce itself via a IMGLUE reloc, and */ | |
1385 | /* the reloc contains the required toc restore instruction */ | |
1386 | ||
1387 | bfd_vma x; | |
1388 | const char *my_name; | |
1389 | DUMP_RELOC2(howto->name, rel); | |
1390 | ||
1391 | if (h != 0) | |
1392 | { | |
1393 | my_name = h->root.root.root.string; | |
1394 | if (h->symbol_is_glue == 1) | |
1395 | { | |
1396 | x = bfd_get_32(input_bfd, loc); | |
1397 | bfd_put_32(input_bfd, h->glue_insn, loc); | |
1398 | } | |
1399 | } | |
1400 | } | |
1401 | break; | |
1402 | case IMAGE_REL_PPC_SECREL: | |
1403 | /* Unimplemented: codeview debugging information */ | |
1404 | /* For fast access to the header of the section | |
1405 | containing the item. */ | |
1406 | break; | |
1407 | case IMAGE_REL_PPC_SECTION: | |
1408 | /* Unimplemented: codeview debugging information */ | |
1409 | /* Is used to indicate that the value should be relative | |
1410 | to the beginning of the section that contains the | |
1411 | symbol */ | |
1412 | break; | |
1413 | case IMAGE_REL_PPC_ABSOLUTE: | |
1414 | { | |
1415 | const char *my_name; | |
1416 | if (h == 0) | |
1417 | my_name = (syms+symndx)->_n._n_name; | |
1418 | else | |
1419 | { | |
1420 | my_name = h->root.root.root.string; | |
1421 | } | |
1422 | ||
1423 | fprintf(stderr, | |
1424 | _("Warning: unsupported reloc %s <file %s, section %s>\n"), | |
1425 | howto->name, | |
1426 | bfd_get_filename(input_bfd), | |
1427 | input_section->name); | |
1428 | ||
1429 | fprintf(stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n", | |
1430 | rel->r_symndx, my_name, (long) rel->r_vaddr, | |
1431 | (unsigned long) rel->r_vaddr); | |
1432 | } | |
1433 | break; | |
1434 | case IMAGE_REL_PPC_IMGLUE: | |
1435 | { | |
1436 | /* There is nothing to do now. This reloc was noted in the first | |
1437 | pass over the relocs, and the glue instruction extracted */ | |
1438 | const char *my_name; | |
1439 | if (h->symbol_is_glue == 1) | |
1440 | break; | |
1441 | my_name = h->root.root.root.string; | |
1442 | ||
1443 | (*_bfd_error_handler) | |
1444 | (_("%s: Out of order IMGLUE reloc for %s"), | |
1445 | bfd_get_filename (input_bfd), my_name); | |
1446 | bfd_set_error (bfd_error_bad_value); | |
1447 | return false; | |
1448 | } | |
1449 | ||
1450 | case IMAGE_REL_PPC_ADDR32NB: | |
1451 | { | |
1452 | struct coff_link_hash_entry *myh = 0; | |
1453 | const char *name = 0; | |
1454 | DUMP_RELOC2(howto->name, rel); | |
1455 | ||
1456 | if (strncmp(".idata$2",input_section->name,8) == 0 && first_thunk_address == 0) | |
1457 | { | |
1458 | /* set magic values */ | |
1459 | int idata5offset; | |
1460 | struct coff_link_hash_entry *myh = 0; | |
1461 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1462 | "__idata5_magic__", | |
1463 | false, false, true); | |
1464 | first_thunk_address = myh->root.u.def.value + | |
1465 | sec->output_section->vma + | |
1466 | sec->output_offset - | |
1467 | pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1468 | ||
1469 | idata5offset = myh->root.u.def.value; | |
1470 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1471 | "__idata6_magic__", | |
1472 | false, false, true); | |
1473 | ||
1474 | thunk_size = myh->root.u.def.value - idata5offset; | |
1475 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1476 | "__idata4_magic__", | |
1477 | false, false, true); | |
1478 | import_table_size = myh->root.u.def.value; | |
1479 | } | |
1480 | ||
1481 | if (h == 0) | |
1482 | { /* it is a file local symbol */ | |
1483 | sym = syms + symndx; | |
1484 | name = sym->_n._n_name; | |
1485 | } | |
1486 | else | |
1487 | { | |
1488 | char *target = 0; | |
1489 | ||
1490 | name = h->root.root.root.string; | |
1491 | if (strcmp(".idata$2", name) == 0) | |
1492 | target = "__idata2_magic__"; | |
1493 | else if (strcmp(".idata$4", name) == 0) | |
1494 | target = "__idata4_magic__"; | |
1495 | else if (strcmp(".idata$5", name) == 0) | |
1496 | target = "__idata5_magic__"; | |
1497 | ||
1498 | if (target != 0) | |
1499 | { | |
1500 | myh = 0; | |
1501 | ||
1502 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1503 | target, | |
1504 | false, false, true); | |
1505 | if (myh == 0) | |
1506 | { | |
1507 | /* Missing magic cookies. Something is very wrong. */ | |
1508 | abort(); | |
1509 | } | |
1510 | ||
1511 | val = myh->root.u.def.value + | |
1512 | sec->output_section->vma + sec->output_offset; | |
1513 | if (first_thunk_address == 0) | |
1514 | { | |
1515 | int idata5offset; | |
1516 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1517 | "__idata5_magic__", | |
1518 | false, false, true); | |
1519 | first_thunk_address = myh->root.u.def.value + | |
1520 | sec->output_section->vma + | |
1521 | sec->output_offset - | |
1522 | pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1523 | ||
1524 | idata5offset = myh->root.u.def.value; | |
1525 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1526 | "__idata6_magic__", | |
1527 | false, false, true); | |
1528 | ||
1529 | thunk_size = myh->root.u.def.value - idata5offset; | |
1530 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1531 | "__idata4_magic__", | |
1532 | false, false, true); | |
1533 | import_table_size = myh->root.u.def.value; | |
1534 | } | |
1535 | } | |
1536 | } | |
1537 | ||
1538 | rstat = _bfd_relocate_contents (howto, | |
1539 | input_bfd, | |
1540 | val - | |
1541 | pe_data(output_bfd)->pe_opthdr.ImageBase, | |
1542 | loc); | |
1543 | } | |
1544 | break; | |
1545 | ||
1546 | case IMAGE_REL_PPC_REL24: | |
1547 | DUMP_RELOC2(howto->name, rel); | |
1548 | val -= (input_section->output_section->vma | |
1549 | + input_section->output_offset); | |
1550 | ||
1551 | rstat = _bfd_relocate_contents (howto, | |
1552 | input_bfd, | |
1553 | val, | |
1554 | loc); | |
1555 | break; | |
1556 | case IMAGE_REL_PPC_ADDR16: | |
1557 | case IMAGE_REL_PPC_ADDR24: | |
1558 | case IMAGE_REL_PPC_ADDR32: | |
1559 | DUMP_RELOC2(howto->name, rel); | |
1560 | rstat = _bfd_relocate_contents (howto, | |
1561 | input_bfd, | |
1562 | val, | |
1563 | loc); | |
1564 | break; | |
1565 | } | |
1566 | ||
1567 | if ( info->base_file ) | |
1568 | { | |
1569 | /* So if this is non pcrelative, and is referenced | |
1570 | to a section or a common symbol, then it needs a reloc */ | |
1571 | if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto)) | |
1572 | { | |
1573 | /* relocation to a symbol in a section which | |
1574 | isn't absolute - we output the address here | |
1575 | to a file */ | |
1576 | bfd_vma addr = rel->r_vaddr | |
1577 | - input_section->vma | |
1578 | + input_section->output_offset | |
1579 | + input_section->output_section->vma; | |
1580 | ||
1581 | if (coff_data(output_bfd)->pe) | |
1582 | { | |
1583 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1584 | } | |
1585 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1586 | } | |
1587 | } | |
1588 | ||
1589 | switch (rstat) | |
1590 | { | |
1591 | default: | |
1592 | abort (); | |
1593 | case bfd_reloc_ok: | |
1594 | break; | |
1595 | case bfd_reloc_overflow: | |
1596 | { | |
1597 | const char *name; | |
1598 | char buf[SYMNMLEN + 1]; | |
1599 | ||
1600 | if (symndx == -1) | |
1601 | name = "*ABS*"; | |
1602 | else if (h != NULL) | |
1603 | name = h->root.root.root.string; | |
1604 | else if (sym == NULL) | |
1605 | name = "*unknown*"; | |
1606 | else if (sym->_n._n_n._n_zeroes == 0 | |
1607 | && sym->_n._n_n._n_offset != 0) | |
1608 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; | |
1609 | else | |
1610 | { | |
1611 | strncpy (buf, sym->_n._n_name, SYMNMLEN); | |
1612 | buf[SYMNMLEN] = '\0'; | |
1613 | name = buf; | |
1614 | } | |
1615 | ||
1616 | if (! ((*info->callbacks->reloc_overflow) | |
1617 | (info, name, howto->name, | |
1618 | (bfd_vma) 0, input_bfd, | |
1619 | input_section, rel->r_vaddr - input_section->vma))) | |
1620 | { | |
1621 | return false; | |
1622 | } | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | } | |
1627 | ||
1628 | return true; | |
1629 | } | |
1630 | ||
1631 | #ifdef COFF_IMAGE_WITH_PE | |
1632 | ||
1633 | /* FIXME: BFD should not use global variables. This file is compiled | |
1634 | twice, and these variables are shared. This is confusing and | |
1635 | weird. */ | |
1636 | ||
1637 | long int global_toc_size = 4; | |
1638 | ||
1639 | bfd* bfd_of_toc_owner = 0; | |
1640 | ||
1641 | long int import_table_size; | |
1642 | long int first_thunk_address; | |
1643 | long int thunk_size; | |
1644 | ||
1645 | struct list_ele *head; | |
1646 | struct list_ele *tail; | |
1647 | ||
1648 | static char * | |
1649 | h1 = N_("\n\t\t\tTOC MAPPING\n\n"); | |
1650 | static char * | |
1651 | h2 = N_(" TOC disassembly Comments Name\n"); | |
1652 | static char * | |
1653 | h3 = N_(" Offset spelling (if present)\n"); | |
1654 | ||
1655 | void | |
1656 | dump_toc (vfile) | |
1657 | PTR vfile; | |
1658 | { | |
1659 | FILE *file = (FILE *) vfile; | |
1660 | struct list_ele *t; | |
1661 | ||
1662 | fprintf(file, _(h1)); | |
1663 | fprintf(file, _(h2)); | |
1664 | fprintf(file, _(h3)); | |
1665 | ||
1666 | for(t = head; t != 0; t=t->next) | |
1667 | { | |
1668 | const char *cat = ""; | |
1669 | ||
1670 | if (t->cat == priv) | |
1671 | cat = _("private "); | |
1672 | else if (t->cat == pub) | |
1673 | cat = _("public "); | |
1674 | else if (t->cat == data) | |
1675 | cat = _("data-in-toc "); | |
1676 | ||
1677 | if (t->offset > global_toc_size) | |
1678 | { | |
1679 | if (t->offset <= global_toc_size + thunk_size) | |
1680 | cat = _("IAT reference "); | |
1681 | else | |
1682 | { | |
1683 | fprintf(file, | |
1684 | _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"), | |
1685 | global_toc_size, global_toc_size, thunk_size, thunk_size); | |
1686 | cat = _("Out of bounds!"); | |
1687 | } | |
1688 | } | |
1689 | ||
1690 | fprintf(file, | |
1691 | " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768); | |
1692 | fprintf(file, | |
1693 | " %s %s\n", | |
1694 | cat, t->name); | |
1695 | ||
1696 | } | |
1697 | ||
1698 | fprintf(file, "\n"); | |
1699 | } | |
1700 | ||
1701 | boolean | |
1702 | ppc_allocate_toc_section (info) | |
5f771d47 | 1703 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1704 | { |
1705 | asection *s; | |
1706 | bfd_byte *foo; | |
1707 | static char test_char = '1'; | |
1708 | ||
1709 | if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */ | |
1710 | return true; | |
1711 | ||
1712 | if (bfd_of_toc_owner == 0) | |
1713 | { | |
1714 | /* No toc owner? Something is very wrong. */ | |
1715 | abort(); | |
1716 | } | |
1717 | ||
1718 | s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME); | |
1719 | if (s == NULL) | |
1720 | { | |
1721 | /* No toc section? Something is very wrong. */ | |
1722 | abort(); | |
1723 | } | |
1724 | ||
1725 | foo = (bfd_byte *) bfd_alloc(bfd_of_toc_owner, global_toc_size); | |
1726 | memset(foo, test_char, global_toc_size); | |
1727 | ||
1728 | s->_raw_size = s->_cooked_size = global_toc_size; | |
1729 | s->contents = foo; | |
1730 | ||
1731 | return true; | |
1732 | } | |
1733 | ||
1734 | boolean | |
1735 | ppc_process_before_allocation (abfd, info) | |
1736 | bfd *abfd; | |
1737 | struct bfd_link_info *info; | |
1738 | { | |
1739 | asection *sec; | |
1740 | struct internal_reloc *i, *rel; | |
1741 | ||
1742 | /* here we have a bfd that is to be included on the link. We have a hook | |
1743 | to do reloc rummaging, before section sizes are nailed down. */ | |
1744 | ||
1745 | _bfd_coff_get_external_symbols(abfd); | |
1746 | ||
1747 | /* rummage around all the relocs and map the toc */ | |
1748 | sec = abfd->sections; | |
1749 | ||
1750 | if (sec == 0) | |
1751 | { | |
1752 | return true; | |
1753 | } | |
1754 | ||
1755 | for (; sec != 0; sec = sec->next) | |
1756 | { | |
1757 | if (sec->reloc_count == 0) | |
1758 | continue; | |
1759 | ||
1760 | /* load the relocs */ | |
1761 | /* FIXME: there may be a storage leak here */ | |
1762 | i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0); | |
1763 | ||
1764 | if (i == 0) | |
1765 | abort(); | |
1766 | ||
1767 | for (rel=i;rel<i+sec->reloc_count;++rel) | |
1768 | { | |
1769 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1770 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
1771 | boolean ok = true; | |
1772 | ||
1773 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
1774 | ||
1775 | switch(r_type) | |
1776 | { | |
1777 | case IMAGE_REL_PPC_TOCREL16: | |
1778 | /* if TOCDEFN is on, ignore as someone else has allocated the | |
1779 | toc entry */ | |
1780 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN ) | |
1781 | ok = ppc_record_toc_entry(abfd, info, sec, | |
1782 | rel->r_symndx, default_toc); | |
1783 | if (!ok) | |
1784 | return false; | |
1785 | break; | |
1786 | case IMAGE_REL_PPC_IMGLUE: | |
1787 | ppc_mark_symbol_as_glue(abfd, rel->r_symndx, rel); | |
1788 | break; | |
1789 | default: | |
1790 | break; | |
1791 | } | |
1792 | } | |
1793 | } | |
1794 | ||
1795 | return true; | |
1796 | } | |
1797 | ||
1798 | #endif | |
1799 | ||
1800 | ||
1801 | static bfd_reloc_status_type | |
1802 | ppc_refhi_reloc (abfd, | |
1803 | reloc_entry, | |
1804 | symbol, | |
1805 | data, | |
1806 | input_section, | |
1807 | output_bfd, | |
1808 | error_message) | |
5f771d47 ILT |
1809 | bfd *abfd ATTRIBUTE_UNUSED; |
1810 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1811 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1812 | PTR data ATTRIBUTE_UNUSED; | |
1813 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1814 | bfd *output_bfd; |
5f771d47 | 1815 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1816 | { |
1817 | UN_IMPL("REFHI"); | |
1818 | DUMP_RELOC("REFHI",reloc_entry); | |
1819 | ||
1820 | if (output_bfd == (bfd *) NULL) | |
1821 | return bfd_reloc_continue; | |
1822 | ||
1823 | return bfd_reloc_undefined; | |
1824 | } | |
1825 | ||
1826 | #if 0 | |
1827 | ||
1828 | static bfd_reloc_status_type | |
1829 | ppc_reflo_reloc (abfd, | |
1830 | reloc_entry, | |
1831 | symbol, | |
1832 | data, | |
1833 | input_section, | |
1834 | output_bfd, | |
1835 | error_message) | |
1836 | bfd *abfd; | |
1837 | arelent *reloc_entry; | |
1838 | asymbol *symbol; | |
1839 | PTR data; | |
1840 | asection *input_section; | |
1841 | bfd *output_bfd; | |
1842 | char **error_message; | |
1843 | { | |
1844 | UN_IMPL("REFLO"); | |
1845 | DUMP_RELOC("REFLO",reloc_entry); | |
1846 | ||
1847 | if (output_bfd == (bfd *) NULL) | |
1848 | return bfd_reloc_continue; | |
1849 | ||
1850 | return bfd_reloc_undefined; | |
1851 | } | |
1852 | ||
1853 | #endif | |
1854 | ||
1855 | static bfd_reloc_status_type | |
1856 | ppc_pair_reloc (abfd, | |
1857 | reloc_entry, | |
1858 | symbol, | |
1859 | data, | |
1860 | input_section, | |
1861 | output_bfd, | |
1862 | error_message) | |
5f771d47 ILT |
1863 | bfd *abfd ATTRIBUTE_UNUSED; |
1864 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1865 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1866 | PTR data ATTRIBUTE_UNUSED; | |
1867 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1868 | bfd *output_bfd; |
5f771d47 | 1869 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1870 | { |
1871 | UN_IMPL("PAIR"); | |
1872 | DUMP_RELOC("PAIR",reloc_entry); | |
1873 | ||
1874 | if (output_bfd == (bfd *) NULL) | |
1875 | return bfd_reloc_continue; | |
1876 | ||
1877 | return bfd_reloc_undefined; | |
1878 | } | |
1879 | ||
1880 | \f | |
1881 | static bfd_reloc_status_type | |
1882 | ppc_toc16_reloc (abfd, | |
1883 | reloc_entry, | |
1884 | symbol, | |
1885 | data, | |
1886 | input_section, | |
1887 | output_bfd, | |
1888 | error_message) | |
5f771d47 ILT |
1889 | bfd *abfd ATTRIBUTE_UNUSED; |
1890 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1891 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1892 | PTR data ATTRIBUTE_UNUSED; | |
1893 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1894 | bfd *output_bfd; |
5f771d47 | 1895 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1896 | { |
1897 | UN_IMPL("TOCREL16"); | |
1898 | DUMP_RELOC("TOCREL16",reloc_entry); | |
1899 | ||
1900 | if (output_bfd == (bfd *) NULL) | |
1901 | { | |
1902 | return bfd_reloc_continue; | |
1903 | } | |
1904 | ||
1905 | return bfd_reloc_ok; | |
1906 | } | |
1907 | ||
1908 | #if 0 | |
1909 | ||
1910 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ | |
1911 | /* (On the alpha, this is always a linker generated thunk)*/ | |
1912 | /* (i.e. 32bit addr relative to the image base) */ | |
1913 | /* */ | |
1914 | /* */ | |
1915 | ||
1916 | static bfd_reloc_status_type | |
1917 | ppc_addr32nb_reloc (abfd, | |
1918 | reloc_entry, | |
1919 | symbol, | |
1920 | data, | |
1921 | input_section, | |
1922 | output_bfd, | |
1923 | error_message) | |
1924 | bfd *abfd; | |
1925 | arelent *reloc_entry; | |
1926 | asymbol *symbol; | |
1927 | PTR data; | |
1928 | asection *input_section; | |
1929 | bfd *output_bfd; | |
1930 | char **error_message; | |
1931 | { | |
1932 | UN_IMPL("ADDR32NB"); | |
1933 | DUMP_RELOC("ADDR32NB",reloc_entry); | |
1934 | ||
1935 | return bfd_reloc_ok; | |
1936 | } | |
1937 | ||
1938 | #endif | |
1939 | ||
1940 | static bfd_reloc_status_type | |
1941 | ppc_secrel_reloc (abfd, | |
1942 | reloc_entry, | |
1943 | symbol, | |
1944 | data, | |
1945 | input_section, | |
1946 | output_bfd, | |
1947 | error_message) | |
5f771d47 ILT |
1948 | bfd *abfd ATTRIBUTE_UNUSED; |
1949 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1950 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1951 | PTR data ATTRIBUTE_UNUSED; | |
1952 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1953 | bfd *output_bfd; |
5f771d47 | 1954 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1955 | { |
1956 | UN_IMPL("SECREL"); | |
1957 | DUMP_RELOC("SECREL",reloc_entry); | |
1958 | ||
1959 | if (output_bfd == (bfd *) NULL) | |
1960 | return bfd_reloc_continue; | |
1961 | ||
1962 | return bfd_reloc_ok; | |
1963 | } | |
1964 | ||
1965 | static bfd_reloc_status_type | |
1966 | ppc_section_reloc (abfd, | |
1967 | reloc_entry, | |
1968 | symbol, | |
1969 | data, | |
1970 | input_section, | |
1971 | output_bfd, | |
1972 | error_message) | |
5f771d47 ILT |
1973 | bfd *abfd ATTRIBUTE_UNUSED; |
1974 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1975 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1976 | PTR data ATTRIBUTE_UNUSED; | |
1977 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1978 | bfd *output_bfd; |
5f771d47 | 1979 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1980 | { |
1981 | UN_IMPL("SECTION"); | |
1982 | DUMP_RELOC("SECTION",reloc_entry); | |
1983 | ||
1984 | if (output_bfd == (bfd *) NULL) | |
1985 | return bfd_reloc_continue; | |
1986 | ||
1987 | return bfd_reloc_ok; | |
1988 | } | |
1989 | ||
1990 | static bfd_reloc_status_type | |
1991 | ppc_imglue_reloc (abfd, | |
1992 | reloc_entry, | |
1993 | symbol, | |
1994 | data, | |
1995 | input_section, | |
1996 | output_bfd, | |
1997 | error_message) | |
5f771d47 ILT |
1998 | bfd *abfd ATTRIBUTE_UNUSED; |
1999 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
2000 | asymbol *symbol ATTRIBUTE_UNUSED; | |
2001 | PTR data ATTRIBUTE_UNUSED; | |
2002 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 2003 | bfd *output_bfd; |
5f771d47 | 2004 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
2005 | { |
2006 | UN_IMPL("IMGLUE"); | |
2007 | DUMP_RELOC("IMGLUE",reloc_entry); | |
2008 | ||
2009 | if (output_bfd == (bfd *) NULL) | |
2010 | return bfd_reloc_continue; | |
2011 | ||
2012 | return bfd_reloc_ok; | |
2013 | } | |
2014 | ||
2015 | \f | |
2016 | ||
2017 | #define MAX_RELOC_INDEX \ | |
2018 | (sizeof(ppc_coff_howto_table) / sizeof(ppc_coff_howto_table[0]) - 1) | |
2019 | ||
2020 | ||
2021 | /* FIXME: There is a possiblity that when we read in a reloc from a file, | |
2022 | that there are some bits encoded in the upper portion of the | |
2023 | type field. Not yet implemented. | |
2024 | */ | |
2025 | static void ppc_coff_rtype2howto PARAMS ((arelent *relent, | |
2026 | struct internal_reloc *internal)); | |
2027 | ||
2028 | static void | |
2029 | ppc_coff_rtype2howto (relent, internal) | |
2030 | arelent *relent; | |
2031 | struct internal_reloc *internal; | |
2032 | { | |
2033 | ||
2034 | /* We can encode one of three things in the type field, aside from the | |
2035 | type: | |
2036 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2037 | value, rather than an addition value | |
2038 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2039 | the branch is expected to be taken or not. | |
2040 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2041 | For now, we just strip this stuff to find the type, and ignore it other | |
2042 | than that. | |
2043 | */ | |
2044 | reloc_howto_type *howto; | |
2045 | unsigned short r_type = EXTRACT_TYPE (internal->r_type); | |
2046 | unsigned short r_flags = EXTRACT_FLAGS(internal->r_type); | |
2047 | unsigned short junk = EXTRACT_JUNK (internal->r_type); | |
2048 | ||
2049 | /* the masking process only slices off the bottom byte for r_type. */ | |
2050 | if ( r_type > MAX_RELOC_INDEX ) | |
2051 | abort(); | |
2052 | ||
2053 | /* check for absolute crap */ | |
2054 | if ( junk != 0 ) | |
2055 | abort(); | |
2056 | ||
2057 | switch(r_type) | |
2058 | { | |
2059 | case IMAGE_REL_PPC_ADDR16: | |
2060 | case IMAGE_REL_PPC_REL24: | |
2061 | case IMAGE_REL_PPC_ADDR24: | |
2062 | case IMAGE_REL_PPC_ADDR32: | |
2063 | case IMAGE_REL_PPC_IFGLUE: | |
2064 | case IMAGE_REL_PPC_ADDR32NB: | |
2065 | case IMAGE_REL_PPC_SECTION: | |
2066 | case IMAGE_REL_PPC_SECREL: | |
2067 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2068 | howto = ppc_coff_howto_table + r_type; | |
2069 | break; | |
2070 | case IMAGE_REL_PPC_IMGLUE: | |
2071 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2072 | howto = ppc_coff_howto_table + r_type; | |
2073 | break; | |
2074 | case IMAGE_REL_PPC_TOCREL16: | |
2075 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2076 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) | |
2077 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; | |
2078 | else | |
2079 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; | |
2080 | break; | |
2081 | default: | |
2082 | fprintf(stderr, | |
2083 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), | |
2084 | ppc_coff_howto_table[r_type].name, | |
2085 | r_type); | |
2086 | howto = ppc_coff_howto_table + r_type; | |
2087 | break; | |
2088 | } | |
2089 | ||
2090 | relent->howto = howto; | |
2091 | ||
2092 | } | |
2093 | ||
2094 | static reloc_howto_type * | |
2095 | coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
5f771d47 | 2096 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2097 | asection *sec; |
2098 | struct internal_reloc *rel; | |
5f771d47 ILT |
2099 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED; |
2100 | struct internal_syment *sym ATTRIBUTE_UNUSED; | |
252b5132 RH |
2101 | bfd_vma *addendp; |
2102 | { | |
2103 | reloc_howto_type *howto; | |
2104 | ||
2105 | /* We can encode one of three things in the type field, aside from the | |
2106 | type: | |
2107 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2108 | value, rather than an addition value | |
2109 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2110 | the branch is expected to be taken or not. | |
2111 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2112 | For now, we just strip this stuff to find the type, and ignore it other | |
2113 | than that. | |
2114 | */ | |
2115 | ||
2116 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
2117 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
2118 | unsigned short junk = EXTRACT_JUNK (rel->r_type); | |
2119 | ||
2120 | /* the masking process only slices off the bottom byte for r_type. */ | |
2121 | if ( r_type > MAX_RELOC_INDEX ) | |
2122 | abort(); | |
2123 | ||
2124 | /* check for absolute crap */ | |
2125 | if ( junk != 0 ) | |
2126 | abort(); | |
2127 | ||
2128 | switch(r_type) | |
2129 | { | |
2130 | case IMAGE_REL_PPC_ADDR32NB: | |
2131 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2132 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; | |
2133 | howto = ppc_coff_howto_table + r_type; | |
2134 | break; | |
2135 | case IMAGE_REL_PPC_TOCREL16: | |
2136 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2137 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) | |
2138 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; | |
2139 | else | |
2140 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; | |
2141 | break; | |
2142 | case IMAGE_REL_PPC_ADDR16: | |
2143 | case IMAGE_REL_PPC_REL24: | |
2144 | case IMAGE_REL_PPC_ADDR24: | |
2145 | case IMAGE_REL_PPC_ADDR32: | |
2146 | case IMAGE_REL_PPC_IFGLUE: | |
2147 | case IMAGE_REL_PPC_SECTION: | |
2148 | case IMAGE_REL_PPC_SECREL: | |
2149 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2150 | howto = ppc_coff_howto_table + r_type; | |
2151 | break; | |
2152 | case IMAGE_REL_PPC_IMGLUE: | |
2153 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2154 | howto = ppc_coff_howto_table + r_type; | |
2155 | break; | |
2156 | default: | |
2157 | fprintf(stderr, | |
2158 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), | |
2159 | ppc_coff_howto_table[r_type].name, | |
2160 | r_type); | |
2161 | howto = ppc_coff_howto_table + r_type; | |
2162 | break; | |
2163 | } | |
2164 | ||
2165 | return howto; | |
2166 | } | |
2167 | ||
2168 | ||
2169 | /* a cheesy little macro to make the code a little more readable */ | |
2170 | #define HOW2MAP(bfd_rtype,ppc_rtype) \ | |
2171 | case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype] | |
2172 | ||
2173 | static reloc_howto_type *ppc_coff_reloc_type_lookup | |
2174 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
2175 | ||
2176 | static reloc_howto_type * | |
2177 | ppc_coff_reloc_type_lookup (abfd, code) | |
5f771d47 | 2178 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2179 | bfd_reloc_code_real_type code; |
2180 | { | |
2181 | switch (code) | |
2182 | { | |
2183 | HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE); | |
2184 | HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE); | |
2185 | HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16); | |
2186 | HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24); | |
2187 | HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24); | |
2188 | HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16); | |
2189 | HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN); | |
2190 | HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32); | |
2191 | HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB); | |
2192 | default: | |
2193 | return NULL; | |
2194 | } | |
2195 | /*NOTREACHED*/ | |
2196 | } | |
2197 | ||
2198 | #undef HOW2MAP | |
2199 | ||
2200 | \f | |
2201 | /* Tailor coffcode.h -- macro heaven. */ | |
2202 | ||
2203 | #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst) | |
2204 | ||
2205 | #ifndef COFF_IMAGE_WITH_PE | |
2206 | static void ppc_coff_swap_sym_in_hook PARAMS ((bfd *, PTR, PTR)); | |
2207 | #endif | |
2208 | ||
2209 | /* We use the special COFF backend linker, with our own special touch. */ | |
2210 | ||
2211 | #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup | |
2212 | #define coff_rtype_to_howto coff_ppc_rtype_to_howto | |
2213 | #define coff_relocate_section coff_ppc_relocate_section | |
2214 | #define coff_bfd_final_link ppc_bfd_coff_final_link | |
2215 | ||
2216 | #ifndef COFF_IMAGE_WITH_PE | |
650f5dd8 | 2217 | /* FIXME: This no longer works. */ |
252b5132 RH |
2218 | #define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook |
2219 | #endif | |
2220 | ||
2221 | #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;} | |
2222 | ||
2223 | #define COFF_PAGE_SIZE 0x1000 | |
2224 | ||
650f5dd8 ILT |
2225 | /* FIXME: This controls some code that used to be in peicode.h and is |
2226 | now in peigen.c. It will not control the code in peigen.c. If | |
2227 | anybody wants to get this working, you will need to fix that. */ | |
252b5132 RH |
2228 | #define POWERPC_LE_PE |
2229 | ||
a50f8417 ILT |
2230 | #define COFF_SECTION_ALIGNMENT_ENTRIES \ |
2231 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \ | |
2232 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ | |
2233 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \ | |
2234 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ | |
2235 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \ | |
2236 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
2237 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \ | |
2238 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
2239 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \ | |
2240 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \ | |
2241 | { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \ | |
2242 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 } | |
2243 | ||
252b5132 RH |
2244 | #include "coffcode.h" |
2245 | ||
2246 | \f | |
2247 | ||
2248 | #ifndef COFF_IMAGE_WITH_PE | |
2249 | /* FIXME: | |
2250 | What we're trying to do here is allocate a toc section (early), and attach | |
2251 | it to the last bfd to be processed. This avoids the problem of having a toc | |
2252 | written out before all files have been processed. This code allocates | |
2253 | a toc section for every file, and records the last one seen. There are | |
2254 | at least two problems with this approach: | |
2255 | 1. We allocate whole bunches of toc sections that are ignored, but at | |
2256 | at least we will not allocate a toc if no .toc is present. | |
2257 | 2. It's not clear to me that being the last bfd read necessarily means | |
2258 | that you are the last bfd closed. | |
2259 | 3. Doing it on a "swap in" hook depends on when the "swap in" is called, | |
2260 | and how often, etc. It's not clear to me that there isn't a hole here. | |
2261 | */ | |
2262 | ||
2263 | static void | |
2264 | ppc_coff_swap_sym_in_hook (abfd, ext1, in1) | |
2265 | bfd *abfd; | |
5f771d47 | 2266 | PTR ext1 ATTRIBUTE_UNUSED; |
252b5132 RH |
2267 | PTR in1; |
2268 | { | |
2269 | struct internal_syment *in = (struct internal_syment *)in1; | |
2270 | ||
2271 | if (bfd_of_toc_owner != 0) /* we already have a toc, so go home */ | |
2272 | return; | |
2273 | ||
2274 | if (strcmp(in->_n._n_name, ".toc") == 0) | |
2275 | { | |
2276 | flagword flags; | |
2277 | register asection *s; | |
2278 | ||
2279 | s = bfd_get_section_by_name ( abfd , TOC_SECTION_NAME); | |
2280 | if (s != NULL) | |
2281 | { | |
2282 | return; | |
2283 | } | |
2284 | ||
2285 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ; | |
2286 | ||
2287 | s = bfd_make_section (abfd, TOC_SECTION_NAME); | |
2288 | ||
2289 | if (s == NULL | |
2290 | || !bfd_set_section_flags (abfd, s, flags) | |
2291 | || !bfd_set_section_alignment (abfd, s, 2)) | |
2292 | { | |
2293 | /* FIXME: set appropriate bfd error */ | |
2294 | abort(); | |
2295 | } | |
2296 | ||
2297 | /* save the bfd for later allocation */ | |
2298 | bfd_of_toc_owner = abfd; | |
2299 | } | |
2300 | ||
2301 | return; | |
2302 | } | |
2303 | #endif | |
2304 | ||
2305 | #ifndef COFF_IMAGE_WITH_PE | |
2306 | ||
2307 | static boolean ppc_do_last PARAMS ((bfd *)); | |
2308 | static bfd *ppc_get_last PARAMS ((void)); | |
2309 | ||
2310 | static boolean | |
2311 | ppc_do_last (abfd) | |
2312 | bfd *abfd; | |
2313 | { | |
2314 | if (abfd == bfd_of_toc_owner) | |
2315 | return true; | |
2316 | else | |
2317 | return false; | |
2318 | } | |
2319 | ||
2320 | static bfd * | |
2321 | ppc_get_last() | |
2322 | { | |
2323 | return bfd_of_toc_owner; | |
2324 | } | |
2325 | ||
2326 | /* this piece of machinery exists only to guarantee that the bfd that holds | |
2327 | the toc section is written last. | |
2328 | ||
2329 | This does depend on bfd_make_section attaching a new section to the | |
2330 | end of the section list for the bfd. | |
2331 | ||
2332 | This is otherwise intended to be functionally the same as | |
2333 | cofflink.c:_bfd_coff_final_link(). It is specifically different only | |
2334 | where the POWERPC_LE_PE macro modifies the code. It is left in as a | |
2335 | precise form of comment. krk@cygnus.com | |
2336 | */ | |
252b5132 RH |
2337 | |
2338 | ||
2339 | /* Do the final link step. */ | |
2340 | ||
2341 | boolean | |
2342 | ppc_bfd_coff_final_link (abfd, info) | |
2343 | bfd *abfd; | |
2344 | struct bfd_link_info *info; | |
2345 | { | |
2346 | bfd_size_type symesz; | |
2347 | struct coff_final_link_info finfo; | |
2348 | boolean debug_merge_allocated; | |
2349 | asection *o; | |
2350 | struct bfd_link_order *p; | |
2351 | size_t max_sym_count; | |
2352 | size_t max_lineno_count; | |
2353 | size_t max_reloc_count; | |
2354 | size_t max_output_reloc_count; | |
2355 | size_t max_contents_size; | |
2356 | file_ptr rel_filepos; | |
2357 | unsigned int relsz; | |
2358 | file_ptr line_filepos; | |
2359 | unsigned int linesz; | |
2360 | bfd *sub; | |
2361 | bfd_byte *external_relocs = NULL; | |
2362 | char strbuf[STRING_SIZE_SIZE]; | |
2363 | ||
2364 | symesz = bfd_coff_symesz (abfd); | |
2365 | ||
2366 | finfo.info = info; | |
2367 | finfo.output_bfd = abfd; | |
2368 | finfo.strtab = NULL; | |
2369 | finfo.section_info = NULL; | |
2370 | finfo.last_file_index = -1; | |
2371 | finfo.last_bf_index = -1; | |
2372 | finfo.internal_syms = NULL; | |
2373 | finfo.sec_ptrs = NULL; | |
2374 | finfo.sym_indices = NULL; | |
2375 | finfo.outsyms = NULL; | |
2376 | finfo.linenos = NULL; | |
2377 | finfo.contents = NULL; | |
2378 | finfo.external_relocs = NULL; | |
2379 | finfo.internal_relocs = NULL; | |
2380 | debug_merge_allocated = false; | |
2381 | ||
2382 | coff_data (abfd)->link_info = info; | |
2383 | ||
2384 | finfo.strtab = _bfd_stringtab_init (); | |
2385 | if (finfo.strtab == NULL) | |
2386 | goto error_return; | |
2387 | ||
2388 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)) | |
2389 | goto error_return; | |
2390 | debug_merge_allocated = true; | |
2391 | ||
2392 | /* Compute the file positions for all the sections. */ | |
2393 | if (! abfd->output_has_begun) | |
2394 | { | |
2395 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
2396 | return false; | |
2397 | } | |
2398 | ||
2399 | /* Count the line numbers and relocation entries required for the | |
2400 | output file. Set the file positions for the relocs. */ | |
2401 | rel_filepos = obj_relocbase (abfd); | |
2402 | relsz = bfd_coff_relsz (abfd); | |
2403 | max_contents_size = 0; | |
2404 | max_lineno_count = 0; | |
2405 | max_reloc_count = 0; | |
2406 | ||
2407 | for (o = abfd->sections; o != NULL; o = o->next) | |
2408 | { | |
2409 | o->reloc_count = 0; | |
2410 | o->lineno_count = 0; | |
2411 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2412 | { | |
2413 | ||
2414 | if (p->type == bfd_indirect_link_order) | |
2415 | { | |
2416 | asection *sec; | |
2417 | ||
2418 | sec = p->u.indirect.section; | |
2419 | ||
2420 | /* Mark all sections which are to be included in the | |
2421 | link. This will normally be every section. We need | |
2422 | to do this so that we can identify any sections which | |
2423 | the linker has decided to not include. */ | |
2424 | sec->linker_mark = true; | |
2425 | ||
2426 | if (info->strip == strip_none | |
2427 | || info->strip == strip_some) | |
2428 | o->lineno_count += sec->lineno_count; | |
2429 | ||
2430 | if (info->relocateable) | |
2431 | o->reloc_count += sec->reloc_count; | |
2432 | ||
2433 | if (sec->_raw_size > max_contents_size) | |
2434 | max_contents_size = sec->_raw_size; | |
2435 | if (sec->lineno_count > max_lineno_count) | |
2436 | max_lineno_count = sec->lineno_count; | |
2437 | if (sec->reloc_count > max_reloc_count) | |
2438 | max_reloc_count = sec->reloc_count; | |
2439 | } | |
2440 | else if (info->relocateable | |
2441 | && (p->type == bfd_section_reloc_link_order | |
2442 | || p->type == bfd_symbol_reloc_link_order)) | |
2443 | ++o->reloc_count; | |
2444 | } | |
2445 | if (o->reloc_count == 0) | |
2446 | o->rel_filepos = 0; | |
2447 | else | |
2448 | { | |
2449 | o->flags |= SEC_RELOC; | |
2450 | o->rel_filepos = rel_filepos; | |
2451 | rel_filepos += o->reloc_count * relsz; | |
2452 | } | |
2453 | } | |
2454 | ||
2455 | /* If doing a relocateable link, allocate space for the pointers we | |
2456 | need to keep. */ | |
2457 | if (info->relocateable) | |
2458 | { | |
2459 | unsigned int i; | |
2460 | ||
2461 | /* We use section_count + 1, rather than section_count, because | |
2462 | the target_index fields are 1 based. */ | |
2463 | finfo.section_info = | |
2464 | ((struct coff_link_section_info *) | |
2465 | bfd_malloc ((abfd->section_count + 1) | |
2466 | * sizeof (struct coff_link_section_info))); | |
2467 | if (finfo.section_info == NULL) | |
2468 | goto error_return; | |
2469 | for (i = 0; i <= abfd->section_count; i++) | |
2470 | { | |
2471 | finfo.section_info[i].relocs = NULL; | |
2472 | finfo.section_info[i].rel_hashes = NULL; | |
2473 | } | |
2474 | } | |
2475 | ||
2476 | /* We now know the size of the relocs, so we can determine the file | |
2477 | positions of the line numbers. */ | |
2478 | line_filepos = rel_filepos; | |
2479 | linesz = bfd_coff_linesz (abfd); | |
2480 | max_output_reloc_count = 0; | |
2481 | for (o = abfd->sections; o != NULL; o = o->next) | |
2482 | { | |
2483 | if (o->lineno_count == 0) | |
2484 | o->line_filepos = 0; | |
2485 | else | |
2486 | { | |
2487 | o->line_filepos = line_filepos; | |
2488 | line_filepos += o->lineno_count * linesz; | |
2489 | } | |
2490 | ||
2491 | if (o->reloc_count != 0) | |
2492 | { | |
2493 | /* We don't know the indices of global symbols until we have | |
2494 | written out all the local symbols. For each section in | |
2495 | the output file, we keep an array of pointers to hash | |
2496 | table entries. Each entry in the array corresponds to a | |
2497 | reloc. When we find a reloc against a global symbol, we | |
2498 | set the corresponding entry in this array so that we can | |
2499 | fix up the symbol index after we have written out all the | |
2500 | local symbols. | |
2501 | ||
2502 | Because of this problem, we also keep the relocs in | |
2503 | memory until the end of the link. This wastes memory, | |
2504 | but only when doing a relocateable link, which is not the | |
2505 | common case. */ | |
2506 | BFD_ASSERT (info->relocateable); | |
2507 | finfo.section_info[o->target_index].relocs = | |
2508 | ((struct internal_reloc *) | |
2509 | bfd_malloc (o->reloc_count * sizeof (struct internal_reloc))); | |
2510 | finfo.section_info[o->target_index].rel_hashes = | |
2511 | ((struct coff_link_hash_entry **) | |
2512 | bfd_malloc (o->reloc_count | |
2513 | * sizeof (struct coff_link_hash_entry *))); | |
2514 | if (finfo.section_info[o->target_index].relocs == NULL | |
2515 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
2516 | goto error_return; | |
2517 | ||
2518 | if (o->reloc_count > max_output_reloc_count) | |
2519 | max_output_reloc_count = o->reloc_count; | |
2520 | } | |
2521 | ||
2522 | /* Reset the reloc and lineno counts, so that we can use them to | |
2523 | count the number of entries we have output so far. */ | |
2524 | o->reloc_count = 0; | |
2525 | o->lineno_count = 0; | |
2526 | } | |
2527 | ||
2528 | obj_sym_filepos (abfd) = line_filepos; | |
2529 | ||
2530 | /* Figure out the largest number of symbols in an input BFD. Take | |
2531 | the opportunity to clear the output_has_begun fields of all the | |
2532 | input BFD's. */ | |
2533 | max_sym_count = 0; | |
2534 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
2535 | { | |
2536 | size_t sz; | |
2537 | ||
2538 | sub->output_has_begun = false; | |
2539 | sz = obj_raw_syment_count (sub); | |
2540 | if (sz > max_sym_count) | |
2541 | max_sym_count = sz; | |
2542 | } | |
2543 | ||
2544 | /* Allocate some buffers used while linking. */ | |
2545 | finfo.internal_syms = ((struct internal_syment *) | |
2546 | bfd_malloc (max_sym_count | |
2547 | * sizeof (struct internal_syment))); | |
2548 | finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count | |
2549 | * sizeof (asection *)); | |
2550 | finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long)); | |
2551 | finfo.outsyms = ((bfd_byte *) | |
2552 | bfd_malloc ((size_t) ((max_sym_count + 1) * symesz))); | |
2553 | finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count | |
2554 | * bfd_coff_linesz (abfd)); | |
2555 | finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); | |
2556 | finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); | |
2557 | if (! info->relocateable) | |
2558 | finfo.internal_relocs = ((struct internal_reloc *) | |
2559 | bfd_malloc (max_reloc_count | |
2560 | * sizeof (struct internal_reloc))); | |
2561 | if ((finfo.internal_syms == NULL && max_sym_count > 0) | |
2562 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) | |
2563 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
2564 | || finfo.outsyms == NULL | |
2565 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
2566 | || (finfo.contents == NULL && max_contents_size > 0) | |
2567 | || (finfo.external_relocs == NULL && max_reloc_count > 0) | |
2568 | || (! info->relocateable | |
2569 | && finfo.internal_relocs == NULL | |
2570 | && max_reloc_count > 0)) | |
2571 | goto error_return; | |
2572 | ||
2573 | /* We now know the position of everything in the file, except that | |
2574 | we don't know the size of the symbol table and therefore we don't | |
2575 | know where the string table starts. We just build the string | |
2576 | table in memory as we go along. We process all the relocations | |
2577 | for a single input file at once. */ | |
2578 | obj_raw_syment_count (abfd) = 0; | |
2579 | ||
2580 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) | |
2581 | { | |
2582 | if (! bfd_coff_start_final_link (abfd, info)) | |
2583 | goto error_return; | |
2584 | } | |
2585 | ||
2586 | for (o = abfd->sections; o != NULL; o = o->next) | |
2587 | { | |
2588 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2589 | { | |
2590 | if (p->type == bfd_indirect_link_order | |
2591 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
2592 | == bfd_target_coff_flavour)) | |
2593 | { | |
2594 | sub = p->u.indirect.section->owner; | |
2595 | #ifdef POWERPC_LE_PE | |
2596 | if (! sub->output_has_begun && !ppc_do_last(sub)) | |
2597 | #else | |
2598 | if (! sub->output_has_begun) | |
2599 | #endif | |
2600 | { | |
2601 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) | |
2602 | goto error_return; | |
2603 | sub->output_has_begun = true; | |
2604 | } | |
2605 | } | |
2606 | else if (p->type == bfd_section_reloc_link_order | |
2607 | || p->type == bfd_symbol_reloc_link_order) | |
2608 | { | |
2609 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) | |
2610 | goto error_return; | |
2611 | } | |
2612 | else | |
2613 | { | |
2614 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
2615 | goto error_return; | |
2616 | } | |
2617 | } | |
2618 | } | |
2619 | ||
2620 | #ifdef POWERPC_LE_PE | |
2621 | { | |
2622 | bfd* last_one = ppc_get_last(); | |
2623 | if (last_one) | |
2624 | { | |
2625 | if (! _bfd_coff_link_input_bfd (&finfo, last_one)) | |
2626 | goto error_return; | |
2627 | } | |
2628 | last_one->output_has_begun = true; | |
2629 | } | |
2630 | #endif | |
2631 | ||
2632 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ | |
2633 | ||
2634 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2635 | debug_merge_allocated = false; | |
2636 | ||
2637 | if (finfo.internal_syms != NULL) | |
2638 | { | |
2639 | free (finfo.internal_syms); | |
2640 | finfo.internal_syms = NULL; | |
2641 | } | |
2642 | if (finfo.sec_ptrs != NULL) | |
2643 | { | |
2644 | free (finfo.sec_ptrs); | |
2645 | finfo.sec_ptrs = NULL; | |
2646 | } | |
2647 | if (finfo.sym_indices != NULL) | |
2648 | { | |
2649 | free (finfo.sym_indices); | |
2650 | finfo.sym_indices = NULL; | |
2651 | } | |
2652 | if (finfo.linenos != NULL) | |
2653 | { | |
2654 | free (finfo.linenos); | |
2655 | finfo.linenos = NULL; | |
2656 | } | |
2657 | if (finfo.contents != NULL) | |
2658 | { | |
2659 | free (finfo.contents); | |
2660 | finfo.contents = NULL; | |
2661 | } | |
2662 | if (finfo.external_relocs != NULL) | |
2663 | { | |
2664 | free (finfo.external_relocs); | |
2665 | finfo.external_relocs = NULL; | |
2666 | } | |
2667 | if (finfo.internal_relocs != NULL) | |
2668 | { | |
2669 | free (finfo.internal_relocs); | |
2670 | finfo.internal_relocs = NULL; | |
2671 | } | |
2672 | ||
2673 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
2674 | index of the first external symbol. Write it out again if | |
2675 | necessary. */ | |
2676 | if (finfo.last_file_index != -1 | |
2677 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)) | |
2678 | { | |
2679 | finfo.last_file.n_value = obj_raw_syment_count (abfd); | |
2680 | bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, | |
2681 | (PTR) finfo.outsyms); | |
2682 | if (bfd_seek (abfd, | |
2683 | (obj_sym_filepos (abfd) | |
2684 | + finfo.last_file_index * symesz), | |
2685 | SEEK_SET) != 0 | |
2686 | || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz) | |
2687 | return false; | |
2688 | } | |
2689 | ||
2690 | /* Write out the global symbols. */ | |
2691 | finfo.failed = false; | |
2692 | coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym, | |
2693 | (PTR) &finfo); | |
2694 | if (finfo.failed) | |
2695 | goto error_return; | |
2696 | ||
2697 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ | |
2698 | if (finfo.outsyms != NULL) | |
2699 | { | |
2700 | free (finfo.outsyms); | |
2701 | finfo.outsyms = NULL; | |
2702 | } | |
2703 | ||
2704 | if (info->relocateable) | |
2705 | { | |
2706 | /* Now that we have written out all the global symbols, we know | |
2707 | the symbol indices to use for relocs against them, and we can | |
2708 | finally write out the relocs. */ | |
2709 | external_relocs = ((bfd_byte *) | |
2710 | bfd_malloc (max_output_reloc_count * relsz)); | |
2711 | if (external_relocs == NULL) | |
2712 | goto error_return; | |
2713 | ||
2714 | for (o = abfd->sections; o != NULL; o = o->next) | |
2715 | { | |
2716 | struct internal_reloc *irel; | |
2717 | struct internal_reloc *irelend; | |
2718 | struct coff_link_hash_entry **rel_hash; | |
2719 | bfd_byte *erel; | |
2720 | ||
2721 | if (o->reloc_count == 0) | |
2722 | continue; | |
2723 | ||
2724 | irel = finfo.section_info[o->target_index].relocs; | |
2725 | irelend = irel + o->reloc_count; | |
2726 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
2727 | erel = external_relocs; | |
2728 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
2729 | { | |
2730 | if (*rel_hash != NULL) | |
2731 | { | |
2732 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
2733 | irel->r_symndx = (*rel_hash)->indx; | |
2734 | } | |
2735 | bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); | |
2736 | } | |
2737 | ||
2738 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
2739 | || bfd_write ((PTR) external_relocs, relsz, o->reloc_count, | |
2740 | abfd) != relsz * o->reloc_count) | |
2741 | goto error_return; | |
2742 | } | |
2743 | ||
2744 | free (external_relocs); | |
2745 | external_relocs = NULL; | |
2746 | } | |
2747 | ||
2748 | /* Free up the section information. */ | |
2749 | if (finfo.section_info != NULL) | |
2750 | { | |
2751 | unsigned int i; | |
2752 | ||
2753 | for (i = 0; i < abfd->section_count; i++) | |
2754 | { | |
2755 | if (finfo.section_info[i].relocs != NULL) | |
2756 | free (finfo.section_info[i].relocs); | |
2757 | if (finfo.section_info[i].rel_hashes != NULL) | |
2758 | free (finfo.section_info[i].rel_hashes); | |
2759 | } | |
2760 | free (finfo.section_info); | |
2761 | finfo.section_info = NULL; | |
2762 | } | |
2763 | ||
2764 | /* If we have optimized stabs strings, output them. */ | |
2765 | if (coff_hash_table (info)->stab_info != NULL) | |
2766 | { | |
2767 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) | |
2768 | return false; | |
2769 | } | |
2770 | ||
2771 | /* Write out the string table. */ | |
2772 | if (obj_raw_syment_count (abfd) != 0) | |
2773 | { | |
2774 | if (bfd_seek (abfd, | |
2775 | (obj_sym_filepos (abfd) | |
2776 | + obj_raw_syment_count (abfd) * symesz), | |
2777 | SEEK_SET) != 0) | |
2778 | return false; | |
2779 | ||
2780 | #if STRING_SIZE_SIZE == 4 | |
2781 | bfd_h_put_32 (abfd, | |
2782 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
2783 | (bfd_byte *) strbuf); | |
2784 | #else | |
2785 | #error Change bfd_h_put_32 | |
2786 | #endif | |
2787 | ||
2788 | if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE) | |
2789 | return false; | |
2790 | ||
2791 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) | |
2792 | return false; | |
2793 | } | |
2794 | ||
2795 | _bfd_stringtab_free (finfo.strtab); | |
2796 | ||
2797 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
2798 | not try to write out the symbols. */ | |
2799 | bfd_get_symcount (abfd) = 0; | |
2800 | ||
2801 | return true; | |
2802 | ||
2803 | error_return: | |
2804 | if (debug_merge_allocated) | |
2805 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2806 | if (finfo.strtab != NULL) | |
2807 | _bfd_stringtab_free (finfo.strtab); | |
2808 | if (finfo.section_info != NULL) | |
2809 | { | |
2810 | unsigned int i; | |
2811 | ||
2812 | for (i = 0; i < abfd->section_count; i++) | |
2813 | { | |
2814 | if (finfo.section_info[i].relocs != NULL) | |
2815 | free (finfo.section_info[i].relocs); | |
2816 | if (finfo.section_info[i].rel_hashes != NULL) | |
2817 | free (finfo.section_info[i].rel_hashes); | |
2818 | } | |
2819 | free (finfo.section_info); | |
2820 | } | |
2821 | if (finfo.internal_syms != NULL) | |
2822 | free (finfo.internal_syms); | |
2823 | if (finfo.sec_ptrs != NULL) | |
2824 | free (finfo.sec_ptrs); | |
2825 | if (finfo.sym_indices != NULL) | |
2826 | free (finfo.sym_indices); | |
2827 | if (finfo.outsyms != NULL) | |
2828 | free (finfo.outsyms); | |
2829 | if (finfo.linenos != NULL) | |
2830 | free (finfo.linenos); | |
2831 | if (finfo.contents != NULL) | |
2832 | free (finfo.contents); | |
2833 | if (finfo.external_relocs != NULL) | |
2834 | free (finfo.external_relocs); | |
2835 | if (finfo.internal_relocs != NULL) | |
2836 | free (finfo.internal_relocs); | |
2837 | if (external_relocs != NULL) | |
2838 | free (external_relocs); | |
2839 | return false; | |
2840 | } | |
2841 | #endif | |
2842 | \f | |
2843 | ||
c3c89269 NC |
2844 | /* Forward declaration for use by alternative_target field. */ |
2845 | #ifdef TARGET_BIG_SYM | |
2846 | extern const bfd_target TARGET_BIG_SYM; | |
2847 | #endif | |
2848 | ||
252b5132 RH |
2849 | /* The transfer vectors that lead the outside world to all of the above. */ |
2850 | ||
2851 | #ifdef TARGET_LITTLE_SYM | |
c3c89269 | 2852 | const bfd_target TARGET_LITTLE_SYM = |
252b5132 RH |
2853 | { |
2854 | TARGET_LITTLE_NAME, /* name or coff-arm-little */ | |
2855 | bfd_target_coff_flavour, | |
2856 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
2857 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
2858 | ||
2859 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2860 | HAS_LINENO | HAS_DEBUG | | |
2861 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
2862 | ||
2863 | #ifndef COFF_WITH_PE | |
2864 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2865 | #else | |
2866 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2867 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2868 | #endif | |
2869 | ||
2870 | 0, /* leading char */ | |
2871 | '/', /* ar_pad_char */ | |
2872 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2873 | ||
2874 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2875 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2876 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
2877 | ||
2878 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2879 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2880 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
2881 | ||
2882 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
2883 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2884 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2885 | bfd_false}, | |
2886 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2887 | _bfd_write_archive_contents, bfd_false}, | |
2888 | ||
2889 | BFD_JUMP_TABLE_GENERIC (coff), | |
2890 | BFD_JUMP_TABLE_COPY (coff), | |
2891 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2892 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2893 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2894 | BFD_JUMP_TABLE_RELOCS (coff), | |
2895 | BFD_JUMP_TABLE_WRITE (coff), | |
2896 | BFD_JUMP_TABLE_LINK (coff), | |
2897 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
c3c89269 NC |
2898 | |
2899 | /* Alternative_target. */ | |
2900 | #ifdef TARGET_BIG_SYM | |
2901 | & TARGET_BIG_SYM, | |
2902 | #else | |
2903 | NULL, | |
2904 | #endif | |
252b5132 | 2905 | |
c3c89269 | 2906 | COFF_SWAP_TABLE |
252b5132 RH |
2907 | }; |
2908 | #endif | |
2909 | ||
2910 | #ifdef TARGET_BIG_SYM | |
c3c89269 | 2911 | const bfd_target TARGET_BIG_SYM = |
252b5132 RH |
2912 | { |
2913 | TARGET_BIG_NAME, | |
2914 | bfd_target_coff_flavour, | |
2915 | BFD_ENDIAN_BIG, /* data byte order is big */ | |
2916 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
2917 | ||
2918 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2919 | HAS_LINENO | HAS_DEBUG | | |
2920 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
2921 | ||
2922 | #ifndef COFF_WITH_PE | |
2923 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2924 | #else | |
2925 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2926 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2927 | #endif | |
2928 | ||
2929 | 0, /* leading char */ | |
2930 | '/', /* ar_pad_char */ | |
2931 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2932 | ||
2933 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
2934 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2935 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
2936 | ||
2937 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
2938 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2939 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
2940 | ||
2941 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
2942 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2943 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2944 | bfd_false}, | |
2945 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2946 | _bfd_write_archive_contents, bfd_false}, | |
2947 | ||
2948 | BFD_JUMP_TABLE_GENERIC (coff), | |
2949 | BFD_JUMP_TABLE_COPY (coff), | |
2950 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2951 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2952 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2953 | BFD_JUMP_TABLE_RELOCS (coff), | |
2954 | BFD_JUMP_TABLE_WRITE (coff), | |
2955 | BFD_JUMP_TABLE_LINK (coff), | |
2956 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
2957 | ||
c3c89269 NC |
2958 | |
2959 | /* Alternative_target. */ | |
2960 | #ifdef TARGET_LITTLE_SYM | |
2961 | & TARGET_LITTLE_SYM, | |
2962 | #else | |
2963 | NULL, | |
2964 | #endif | |
2965 | ||
2966 | COFF_SWAP_TABLE | |
252b5132 RH |
2967 | }; |
2968 | ||
2969 | #endif |