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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 | |
43646c9d | 8 | coff files, in particular, those for the rs/6000, alpha, mips, and |
252b5132 RH |
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. | |
43646c9d | 32 | - dlltool will not produce correct output in some .reloc cases, and will |
252b5132 RH |
33 | not produce the right glue code for dll function calls. |
34 | */ | |
35 | ||
252b5132 RH |
36 | #include "bfd.h" |
37 | #include "sysdep.h" | |
38 | ||
39 | #include "libbfd.h" | |
40 | ||
41 | #include "coff/powerpc.h" | |
42 | #include "coff/internal.h" | |
43 | ||
44 | #include "coff/pe.h" | |
45 | ||
46 | #ifdef BADMAG | |
47 | #undef BADMAG | |
48 | #endif | |
49 | ||
50 | #define BADMAG(x) PPCBADMAG(x) | |
51 | ||
52 | #include "libcoff.h" | |
53 | ||
54 | /* This file is compiled more than once, but we only compile the | |
55 | final_link routine once. */ | |
56 | extern boolean ppc_bfd_coff_final_link | |
57 | PARAMS ((bfd *, struct bfd_link_info *)); | |
58 | extern void dump_toc PARAMS ((PTR)); | |
59 | ||
60 | /* The toc is a set of bfd_vma fields. We use the fact that valid */ | |
61 | /* addresses are even (i.e. the bit representing "1" is off) to allow */ | |
62 | /* us to encode a little extra information in the field */ | |
63 | /* - Unallocated addresses are intialized to 1. */ | |
64 | /* - Allocated addresses are even numbers. */ | |
65 | /* The first time we actually write a reference to the toc in the bfd, */ | |
66 | /* we want to record that fact in a fixup file (if it is asked for), so */ | |
67 | /* we keep track of whether or not an address has been written by marking */ | |
68 | /* the low order bit with a "1" upon writing */ | |
69 | ||
70 | #define SET_UNALLOCATED(x) ((x) = 1) | |
71 | #define IS_UNALLOCATED(x) ((x) == 1) | |
72 | ||
73 | #define IS_WRITTEN(x) ((x) & 1) | |
74 | #define MARK_AS_WRITTEN(x) ((x) |= 1) | |
75 | #define MAKE_ADDR_AGAIN(x) ((x) &= ~1) | |
76 | ||
252b5132 RH |
77 | /* Turn on this check if you suspect something amiss in the hash tables */ |
78 | #ifdef DEBUG_HASH | |
79 | ||
80 | /* Need a 7 char string for an eye catcher */ | |
81 | #define EYE "krkjunk" | |
82 | ||
83 | #define HASH_CHECK_DCL char eye_catcher[8]; | |
84 | #define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE) | |
85 | #define HASH_CHECK(addr) \ | |
86 | if (strcmp(addr->eye_catcher, EYE) != 0) \ | |
87 | { \ | |
88 | fprintf(stderr,\ | |
89 | _("File %s, line %d, Hash check failure, bad eye %8s\n"), \ | |
90 | __FILE__, __LINE__, addr->eye_catcher); \ | |
91 | abort(); \ | |
92 | } | |
93 | ||
252b5132 RH |
94 | #else |
95 | ||
96 | #define HASH_CHECK_DCL | |
97 | #define HASH_CHECK_INIT(ret) | |
98 | #define HASH_CHECK(addr) | |
99 | ||
100 | #endif | |
101 | ||
102 | /* In order not to add an int to every hash table item for every coff | |
103 | linker, we define our own hash table, derived from the coff one */ | |
104 | ||
43646c9d | 105 | /* PE linker hash table entries. */ |
252b5132 RH |
106 | |
107 | struct ppc_coff_link_hash_entry | |
108 | { | |
109 | struct coff_link_hash_entry root; /* First entry, as required */ | |
110 | ||
111 | /* As we wonder around the relocs, we'll keep the assigned toc_offset | |
112 | here */ | |
113 | bfd_vma toc_offset; /* Our addition, as required */ | |
114 | int symbol_is_glue; | |
115 | unsigned long int glue_insn; | |
116 | ||
117 | HASH_CHECK_DCL | |
118 | }; | |
119 | ||
252b5132 RH |
120 | /* PE linker hash table. */ |
121 | ||
122 | struct ppc_coff_link_hash_table | |
123 | { | |
124 | struct coff_link_hash_table root; /* First entry, as required */ | |
125 | }; | |
126 | ||
127 | static struct bfd_hash_entry *ppc_coff_link_hash_newfunc | |
128 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, | |
129 | const char *)); | |
130 | static boolean ppc_coff_link_hash_table_init | |
131 | PARAMS ((struct ppc_coff_link_hash_table *, bfd *, | |
132 | struct bfd_hash_entry *(*) (struct bfd_hash_entry *, | |
133 | struct bfd_hash_table *, | |
134 | const char *))); | |
135 | static struct bfd_link_hash_table *ppc_coff_link_hash_table_create | |
136 | PARAMS ((bfd *)); | |
137 | static boolean coff_ppc_relocate_section | |
138 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
139 | struct internal_reloc *, struct internal_syment *, asection **)); | |
140 | static reloc_howto_type *coff_ppc_rtype_to_howto | |
141 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
142 | struct coff_link_hash_entry *, struct internal_syment *, | |
143 | bfd_vma *)); | |
144 | ||
145 | /* Routine to create an entry in the link hash table. */ | |
146 | ||
147 | static struct bfd_hash_entry * | |
148 | ppc_coff_link_hash_newfunc (entry, table, string) | |
149 | struct bfd_hash_entry *entry; | |
150 | struct bfd_hash_table *table; | |
151 | const char *string; | |
152 | { | |
43646c9d | 153 | struct ppc_coff_link_hash_entry *ret = |
252b5132 RH |
154 | (struct ppc_coff_link_hash_entry *) entry; |
155 | ||
156 | /* Allocate the structure if it has not already been allocated by a | |
157 | subclass. */ | |
158 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) | |
159 | ret = (struct ppc_coff_link_hash_entry *) | |
43646c9d | 160 | bfd_hash_allocate (table, |
252b5132 RH |
161 | sizeof (struct ppc_coff_link_hash_entry)); |
162 | ||
163 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) | |
164 | return NULL; | |
165 | ||
166 | /* Call the allocation method of the superclass. */ | |
167 | ret = ((struct ppc_coff_link_hash_entry *) | |
43646c9d | 168 | _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
252b5132 RH |
169 | table, string)); |
170 | ||
171 | if (ret) | |
172 | { | |
173 | /* Initialize the local fields. */ | |
174 | SET_UNALLOCATED(ret->toc_offset); | |
175 | ret->symbol_is_glue = 0; | |
176 | ret->glue_insn = 0; | |
177 | ||
178 | HASH_CHECK_INIT(ret); | |
179 | } | |
180 | ||
181 | return (struct bfd_hash_entry *) ret; | |
182 | } | |
183 | ||
184 | /* Initialize a PE linker hash table. */ | |
185 | ||
186 | static boolean | |
187 | ppc_coff_link_hash_table_init (table, abfd, newfunc) | |
188 | struct ppc_coff_link_hash_table *table; | |
189 | bfd *abfd; | |
190 | struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *, | |
191 | struct bfd_hash_table *, | |
192 | const char *)); | |
193 | { | |
194 | return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc); | |
195 | } | |
196 | ||
197 | /* Create a PE linker hash table. */ | |
198 | ||
199 | static struct bfd_link_hash_table * | |
200 | ppc_coff_link_hash_table_create (abfd) | |
201 | bfd *abfd; | |
202 | { | |
203 | struct ppc_coff_link_hash_table *ret; | |
204 | ||
205 | ret = ((struct ppc_coff_link_hash_table *) | |
206 | bfd_alloc (abfd, sizeof (struct ppc_coff_link_hash_table))); | |
207 | if (ret == NULL) | |
208 | return NULL; | |
209 | if (! ppc_coff_link_hash_table_init (ret, abfd, | |
210 | ppc_coff_link_hash_newfunc)) | |
211 | { | |
212 | bfd_release (abfd, ret); | |
213 | return (struct bfd_link_hash_table *) NULL; | |
214 | } | |
215 | return &ret->root.root; | |
216 | } | |
217 | ||
218 | /* Now, tailor coffcode.h to use our hash stuff */ | |
219 | ||
220 | #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create | |
221 | ||
222 | \f | |
223 | /* The nt loader points the toc register to &toc + 32768, in order to */ | |
224 | /* use the complete range of a 16-bit displacement. We have to adjust */ | |
225 | /* for this when we fix up loads displaced off the toc reg. */ | |
226 | #define TOC_LOAD_ADJUSTMENT (-32768) | |
227 | #define TOC_SECTION_NAME ".private.toc" | |
228 | ||
229 | /* The main body of code is in coffcode.h. */ | |
230 | ||
231 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) | |
232 | ||
233 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
234 | from smaller values. Start with zero, widen, *then* decrement. */ | |
235 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
236 | ||
43646c9d | 237 | /* these should definitely go in a header file somewhere... */ |
252b5132 RH |
238 | |
239 | /* NOP */ | |
240 | #define IMAGE_REL_PPC_ABSOLUTE 0x0000 | |
241 | ||
242 | /* 64-bit address */ | |
243 | #define IMAGE_REL_PPC_ADDR64 0x0001 | |
244 | ||
245 | /* 32-bit address */ | |
246 | #define IMAGE_REL_PPC_ADDR32 0x0002 | |
247 | ||
248 | /* 26-bit address, shifted left 2 (branch absolute) */ | |
249 | #define IMAGE_REL_PPC_ADDR24 0x0003 | |
250 | ||
251 | /* 16-bit address */ | |
252 | #define IMAGE_REL_PPC_ADDR16 0x0004 | |
253 | ||
254 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
255 | #define IMAGE_REL_PPC_ADDR14 0x0005 | |
256 | ||
257 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
258 | #define IMAGE_REL_PPC_REL24 0x0006 | |
259 | ||
260 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
261 | #define IMAGE_REL_PPC_REL14 0x0007 | |
262 | ||
263 | /* 16-bit offset from TOC base */ | |
264 | #define IMAGE_REL_PPC_TOCREL16 0x0008 | |
265 | ||
266 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
267 | #define IMAGE_REL_PPC_TOCREL14 0x0009 | |
268 | ||
269 | /* 32-bit addr w/o image base */ | |
270 | #define IMAGE_REL_PPC_ADDR32NB 0x000A | |
271 | ||
272 | /* va of containing section (as in an image sectionhdr) */ | |
273 | #define IMAGE_REL_PPC_SECREL 0x000B | |
274 | ||
275 | /* sectionheader number */ | |
276 | #define IMAGE_REL_PPC_SECTION 0x000C | |
277 | ||
278 | /* substitute TOC restore instruction iff symbol is glue code */ | |
279 | #define IMAGE_REL_PPC_IFGLUE 0x000D | |
280 | ||
281 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
282 | #define IMAGE_REL_PPC_IMGLUE 0x000E | |
283 | ||
284 | /* va of containing section (limited to 16 bits) */ | |
285 | #define IMAGE_REL_PPC_SECREL16 0x000F | |
286 | ||
287 | /* stuff to handle immediate data when the number of bits in the */ | |
288 | /* data is greater than the number of bits in the immediate field */ | |
289 | /* We need to do (usually) 32 bit arithmetic on 16 bit chunks */ | |
290 | #define IMAGE_REL_PPC_REFHI 0x0010 | |
291 | #define IMAGE_REL_PPC_REFLO 0x0011 | |
292 | #define IMAGE_REL_PPC_PAIR 0x0012 | |
293 | ||
294 | /* This is essentially the same as tocrel16, with TOCDEFN assumed */ | |
295 | #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 | |
296 | ||
297 | /* Flag bits in IMAGE_RELOCATION.TYPE */ | |
298 | ||
299 | /* subtract reloc value rather than adding it */ | |
300 | #define IMAGE_REL_PPC_NEG 0x0100 | |
301 | ||
302 | /* fix branch prediction bit to predict branch taken */ | |
303 | #define IMAGE_REL_PPC_BRTAKEN 0x0200 | |
304 | ||
305 | /* fix branch prediction bit to predict branch not taken */ | |
306 | #define IMAGE_REL_PPC_BRNTAKEN 0x0400 | |
307 | ||
308 | /* toc slot defined in file (or, data in toc) */ | |
309 | #define IMAGE_REL_PPC_TOCDEFN 0x0800 | |
310 | ||
311 | /* masks to isolate above values in IMAGE_RELOCATION.Type */ | |
312 | #define IMAGE_REL_PPC_TYPEMASK 0x00FF | |
313 | #define IMAGE_REL_PPC_FLAGMASK 0x0F00 | |
314 | ||
315 | #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK) | |
316 | #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK) | |
317 | #define EXTRACT_JUNK(x) \ | |
318 | ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK)) | |
319 | ||
320 | \f | |
321 | /* static helper functions to make relocation work */ | |
322 | /* (Work In Progress) */ | |
323 | ||
324 | static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd, | |
325 | arelent *reloc, | |
326 | asymbol *symbol, | |
327 | PTR data, | |
328 | asection *section, | |
329 | bfd *output_bfd, | |
330 | char **error)); | |
331 | #if 0 | |
332 | static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd, | |
333 | arelent *reloc, | |
334 | asymbol *symbol, | |
335 | PTR data, | |
336 | asection *section, | |
337 | bfd *output_bfd, | |
338 | char **error)); | |
339 | #endif | |
340 | static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd, | |
341 | arelent *reloc, | |
342 | asymbol *symbol, | |
343 | PTR data, | |
344 | asection *section, | |
345 | bfd *output_bfd, | |
346 | char **error)); | |
347 | ||
348 | \f | |
349 | static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd, | |
350 | arelent *reloc, | |
351 | asymbol *symbol, | |
352 | PTR data, | |
353 | asection *section, | |
354 | bfd *output_bfd, | |
355 | char **error)); | |
356 | ||
357 | #if 0 | |
358 | static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd, | |
359 | arelent *reloc, | |
360 | asymbol *symbol, | |
361 | PTR data, | |
362 | asection *section, | |
363 | bfd *output_bfd, | |
364 | char **error)); | |
365 | #endif | |
366 | static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd, | |
367 | arelent *reloc, | |
368 | asymbol *symbol, | |
369 | PTR data, | |
370 | asection *section, | |
371 | bfd *output_bfd, | |
372 | char **error)); | |
373 | ||
374 | static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd, | |
375 | arelent *reloc, | |
376 | asymbol *symbol, | |
377 | PTR data, | |
378 | asection *section, | |
379 | bfd *output_bfd, | |
380 | char **error)); | |
381 | ||
382 | static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd, | |
383 | arelent *reloc, | |
384 | asymbol *symbol, | |
385 | PTR data, | |
386 | asection *section, | |
387 | bfd *output_bfd, | |
388 | char **error)); | |
389 | ||
252b5132 RH |
390 | static boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto)); |
391 | ||
392 | \f | |
393 | /* FIXME: It'll take a while to get through all of these. I only need a few to | |
394 | get us started, so those I'll make sure work. Those marked FIXME are either | |
395 | completely unverified or have a specific unknown marked in the comment */ | |
396 | ||
397 | /*---------------------------------------------------------------------------*/ | |
398 | /* */ | |
399 | /* Relocation entries for Windows/NT on PowerPC. */ | |
400 | /* */ | |
401 | /* From the document "" we find the following listed as used relocs: */ | |
402 | /* */ | |
403 | /* ABSOLUTE : The noop */ | |
404 | /* ADDR[64|32|16] : fields that hold addresses in data fields or the */ | |
405 | /* 16 bit displacement field on a load/store. */ | |
406 | /* ADDR[24|14] : fields that hold addresses in branch and cond */ | |
407 | /* branches. These represent [26|16] bit addresses. */ | |
408 | /* The low order 2 bits are preserved. */ | |
409 | /* REL[24|14] : branches relative to the Instruction Address */ | |
410 | /* register. These represent [26|16] bit addresses, */ | |
411 | /* as before. The instruction field will be zero, and */ | |
412 | /* the address of the SYM will be inserted at link time. */ | |
413 | /* TOCREL16 : 16 bit displacement field referring to a slot in */ | |
414 | /* toc. */ | |
43646c9d | 415 | /* TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. */ |
252b5132 RH |
416 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ |
417 | /* (On the alpha, this is always a linker generated thunk)*/ | |
418 | /* (i.e. 32bit addr relative to the image base) */ | |
419 | /* SECREL : The value is relative to the start of the section */ | |
420 | /* containing the symbol. */ | |
421 | /* SECTION : access to the header containing the item. Supports the */ | |
422 | /* codeview debugger. */ | |
423 | /* */ | |
424 | /* In particular, note that the document does not indicate that the */ | |
425 | /* relocations listed in the header file are used. */ | |
426 | /* */ | |
427 | /* */ | |
428 | /* */ | |
429 | /*---------------------------------------------------------------------------*/ | |
430 | ||
431 | static reloc_howto_type ppc_coff_howto_table[] = | |
432 | { | |
433 | /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */ | |
434 | /* Unused: */ | |
43646c9d KH |
435 | HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */ |
436 | 0, /* rightshift */ | |
437 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
438 | 0, /* bitsize */ | |
439 | false, /* pc_relative */ | |
440 | 0, /* bitpos */ | |
252b5132 | 441 | complain_overflow_dont, /* dont complain_on_overflow */ |
43646c9d | 442 | 0, /* special_function */ |
252b5132 | 443 | "ABSOLUTE", /* name */ |
43646c9d KH |
444 | false, /* partial_inplace */ |
445 | 0x00, /* src_mask */ | |
446 | 0x00, /* dst_mask */ | |
252b5132 | 447 | false), /* pcrel_offset */ |
43646c9d | 448 | |
252b5132 RH |
449 | /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */ |
450 | /* Unused: */ | |
43646c9d KH |
451 | HOWTO(IMAGE_REL_PPC_ADDR64, /* type */ |
452 | 0, /* rightshift */ | |
453 | 3, /* size (0 = byte, 1 = short, 2 = long) */ | |
454 | 64, /* bitsize */ | |
455 | false, /* pc_relative */ | |
456 | 0, /* bitpos */ | |
252b5132 | 457 | complain_overflow_bitfield, /* complain_on_overflow */ |
43646c9d | 458 | 0, /* special_function */ |
252b5132 | 459 | "ADDR64", /* name */ |
43646c9d | 460 | true, /* partial_inplace */ |
252b5132 RH |
461 | MINUS_ONE, /* src_mask */ |
462 | MINUS_ONE, /* dst_mask */ | |
463 | false), /* pcrel_offset */ | |
464 | ||
465 | /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */ | |
466 | /* Used: */ | |
467 | HOWTO (IMAGE_REL_PPC_ADDR32, /* type */ | |
43646c9d KH |
468 | 0, /* rightshift */ |
469 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
470 | 32, /* bitsize */ | |
471 | false, /* pc_relative */ | |
472 | 0, /* bitpos */ | |
252b5132 | 473 | complain_overflow_bitfield, /* complain_on_overflow */ |
43646c9d | 474 | 0, /* special_function */ |
252b5132 | 475 | "ADDR32", /* name */ |
43646c9d KH |
476 | true, /* partial_inplace */ |
477 | 0xffffffff, /* src_mask */ | |
478 | 0xffffffff, /* dst_mask */ | |
252b5132 | 479 | false), /* pcrel_offset */ |
43646c9d | 480 | |
252b5132 RH |
481 | /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */ |
482 | /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */ | |
483 | /* Of course, That's the IBM approved bit numbering, which is not what */ | |
43646c9d | 484 | /* anyone else uses.... The li field is in bit 2 thru 25 */ |
252b5132 RH |
485 | /* Used: */ |
486 | HOWTO (IMAGE_REL_PPC_ADDR24, /* type */ | |
43646c9d KH |
487 | 0, /* rightshift */ |
488 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
252b5132 | 489 | 26, /* bitsize */ |
43646c9d KH |
490 | false, /* pc_relative */ |
491 | 0, /* bitpos */ | |
252b5132 | 492 | complain_overflow_bitfield, /* complain_on_overflow */ |
43646c9d | 493 | 0, /* special_function */ |
252b5132 | 494 | "ADDR24", /* name */ |
43646c9d KH |
495 | true, /* partial_inplace */ |
496 | 0x07fffffc, /* src_mask */ | |
497 | 0x07fffffc, /* dst_mask */ | |
252b5132 | 498 | false), /* pcrel_offset */ |
43646c9d | 499 | |
252b5132 RH |
500 | /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */ |
501 | /* Used: */ | |
43646c9d KH |
502 | HOWTO (IMAGE_REL_PPC_ADDR16, /* type */ |
503 | 0, /* rightshift */ | |
504 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
505 | 16, /* bitsize */ | |
506 | false, /* pc_relative */ | |
507 | 0, /* bitpos */ | |
252b5132 | 508 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 509 | 0, /* special_function */ |
252b5132 | 510 | "ADDR16", /* name */ |
43646c9d KH |
511 | true, /* partial_inplace */ |
512 | 0xffff, /* src_mask */ | |
513 | 0xffff, /* dst_mask */ | |
252b5132 | 514 | false), /* pcrel_offset */ |
43646c9d | 515 | |
252b5132 RH |
516 | /* IMAGE_REL_PPC_ADDR14 0x0005 */ |
517 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
518 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
519 | /* Unused: */ | |
43646c9d KH |
520 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ |
521 | 1, /* rightshift */ | |
522 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
523 | 16, /* bitsize */ | |
524 | false, /* pc_relative */ | |
525 | 0, /* bitpos */ | |
252b5132 | 526 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 527 | 0, /* special_function */ |
252b5132 | 528 | "ADDR16", /* name */ |
43646c9d KH |
529 | true, /* partial_inplace */ |
530 | 0xffff, /* src_mask */ | |
531 | 0xffff, /* dst_mask */ | |
252b5132 | 532 | false), /* pcrel_offset */ |
43646c9d | 533 | |
252b5132 RH |
534 | /* IMAGE_REL_PPC_REL24 0x0006 */ |
535 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
536 | /* Used: */ | |
537 | HOWTO (IMAGE_REL_PPC_REL24, /* type */ | |
43646c9d KH |
538 | 0, /* rightshift */ |
539 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
540 | 26, /* bitsize */ | |
541 | true, /* pc_relative */ | |
542 | 0, /* bitpos */ | |
252b5132 | 543 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 544 | 0, /* special_function */ |
252b5132 | 545 | "REL24", /* name */ |
43646c9d KH |
546 | true, /* partial_inplace */ |
547 | 0x3fffffc, /* src_mask */ | |
548 | 0x3fffffc, /* dst_mask */ | |
252b5132 | 549 | false), /* pcrel_offset */ |
43646c9d | 550 | |
252b5132 RH |
551 | /* IMAGE_REL_PPC_REL14 0x0007 */ |
552 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
553 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
554 | /* FIXME: how does it know how far to shift? */ | |
555 | /* Unused: */ | |
43646c9d KH |
556 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ |
557 | 1, /* rightshift */ | |
558 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
559 | 16, /* bitsize */ | |
560 | false, /* pc_relative */ | |
561 | 0, /* bitpos */ | |
252b5132 | 562 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 563 | 0, /* special_function */ |
252b5132 | 564 | "ADDR16", /* name */ |
43646c9d KH |
565 | true, /* partial_inplace */ |
566 | 0xffff, /* src_mask */ | |
567 | 0xffff, /* dst_mask */ | |
252b5132 | 568 | true), /* pcrel_offset */ |
43646c9d | 569 | |
252b5132 RH |
570 | /* IMAGE_REL_PPC_TOCREL16 0x0008 */ |
571 | /* 16-bit offset from TOC base */ | |
572 | /* Used: */ | |
43646c9d KH |
573 | HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */ |
574 | 0, /* rightshift */ | |
575 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
576 | 16, /* bitsize */ | |
577 | false, /* pc_relative */ | |
578 | 0, /* bitpos */ | |
252b5132 | 579 | complain_overflow_dont, /* complain_on_overflow */ |
43646c9d | 580 | ppc_toc16_reloc, /* special_function */ |
252b5132 | 581 | "TOCREL16", /* name */ |
43646c9d KH |
582 | false, /* partial_inplace */ |
583 | 0xffff, /* src_mask */ | |
584 | 0xffff, /* dst_mask */ | |
252b5132 | 585 | false), /* pcrel_offset */ |
43646c9d | 586 | |
252b5132 RH |
587 | /* IMAGE_REL_PPC_TOCREL14 0x0009 */ |
588 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
589 | /* Unused: */ | |
43646c9d KH |
590 | HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */ |
591 | 1, /* rightshift */ | |
592 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
593 | 16, /* bitsize */ | |
594 | false, /* pc_relative */ | |
595 | 0, /* bitpos */ | |
252b5132 | 596 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 597 | 0, /* special_function */ |
252b5132 | 598 | "TOCREL14", /* name */ |
43646c9d KH |
599 | false, /* partial_inplace */ |
600 | 0xffff, /* src_mask */ | |
601 | 0xffff, /* dst_mask */ | |
252b5132 | 602 | false), /* pcrel_offset */ |
43646c9d | 603 | |
252b5132 RH |
604 | /* IMAGE_REL_PPC_ADDR32NB 0x000A */ |
605 | /* 32-bit addr w/ image base */ | |
606 | /* Unused: */ | |
43646c9d KH |
607 | HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */ |
608 | 0, /* rightshift */ | |
609 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
610 | 32, /* bitsize */ | |
611 | false, /* pc_relative */ | |
612 | 0, /* bitpos */ | |
252b5132 | 613 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 614 | 0, /* special_function */ |
252b5132 | 615 | "ADDR32NB", /* name */ |
43646c9d KH |
616 | true, /* partial_inplace */ |
617 | 0xffffffff, /* src_mask */ | |
618 | 0xffffffff, /* dst_mask */ | |
252b5132 | 619 | false), /* pcrel_offset */ |
43646c9d | 620 | |
252b5132 RH |
621 | /* IMAGE_REL_PPC_SECREL 0x000B */ |
622 | /* va of containing section (as in an image sectionhdr) */ | |
623 | /* Unused: */ | |
43646c9d KH |
624 | HOWTO (IMAGE_REL_PPC_SECREL,/* type */ |
625 | 0, /* rightshift */ | |
626 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
627 | 32, /* bitsize */ | |
628 | false, /* pc_relative */ | |
629 | 0, /* bitpos */ | |
252b5132 | 630 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 631 | ppc_secrel_reloc, /* special_function */ |
252b5132 | 632 | "SECREL", /* name */ |
43646c9d KH |
633 | true, /* partial_inplace */ |
634 | 0xffffffff, /* src_mask */ | |
635 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
636 | true), /* pcrel_offset */ |
637 | ||
638 | /* IMAGE_REL_PPC_SECTION 0x000C */ | |
639 | /* sectionheader number */ | |
640 | /* Unused: */ | |
43646c9d KH |
641 | HOWTO (IMAGE_REL_PPC_SECTION,/* type */ |
642 | 0, /* rightshift */ | |
643 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
644 | 32, /* bitsize */ | |
645 | false, /* pc_relative */ | |
646 | 0, /* bitpos */ | |
252b5132 | 647 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 648 | ppc_section_reloc, /* special_function */ |
252b5132 | 649 | "SECTION", /* name */ |
43646c9d KH |
650 | true, /* partial_inplace */ |
651 | 0xffffffff, /* src_mask */ | |
652 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
653 | true), /* pcrel_offset */ |
654 | ||
655 | /* IMAGE_REL_PPC_IFGLUE 0x000D */ | |
656 | /* substitute TOC restore instruction iff symbol is glue code */ | |
657 | /* Used: */ | |
43646c9d KH |
658 | HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */ |
659 | 0, /* rightshift */ | |
660 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
661 | 32, /* bitsize */ | |
662 | false, /* pc_relative */ | |
663 | 0, /* bitpos */ | |
252b5132 | 664 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 665 | 0, /* special_function */ |
252b5132 | 666 | "IFGLUE", /* name */ |
43646c9d KH |
667 | true, /* partial_inplace */ |
668 | 0xffffffff, /* src_mask */ | |
669 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
670 | false), /* pcrel_offset */ |
671 | ||
672 | /* IMAGE_REL_PPC_IMGLUE 0x000E */ | |
673 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
674 | /* Unused: */ | |
43646c9d KH |
675 | HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */ |
676 | 0, /* rightshift */ | |
677 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
678 | 32, /* bitsize */ | |
679 | false, /* pc_relative */ | |
680 | 0, /* bitpos */ | |
252b5132 | 681 | complain_overflow_dont, /* complain_on_overflow */ |
43646c9d | 682 | ppc_imglue_reloc, /* special_function */ |
252b5132 | 683 | "IMGLUE", /* name */ |
43646c9d KH |
684 | false, /* partial_inplace */ |
685 | 0xffffffff, /* src_mask */ | |
686 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
687 | false), /* pcrel_offset */ |
688 | ||
689 | /* IMAGE_REL_PPC_SECREL16 0x000F */ | |
690 | /* va of containing section (limited to 16 bits) */ | |
691 | /* Unused: */ | |
43646c9d KH |
692 | HOWTO (IMAGE_REL_PPC_SECREL16,/* type */ |
693 | 0, /* rightshift */ | |
694 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
695 | 16, /* bitsize */ | |
696 | false, /* pc_relative */ | |
697 | 0, /* bitpos */ | |
252b5132 | 698 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 699 | 0, /* special_function */ |
252b5132 | 700 | "SECREL16", /* name */ |
43646c9d KH |
701 | true, /* partial_inplace */ |
702 | 0xffff, /* src_mask */ | |
703 | 0xffff, /* dst_mask */ | |
252b5132 RH |
704 | true), /* pcrel_offset */ |
705 | ||
706 | /* IMAGE_REL_PPC_REFHI 0x0010 */ | |
707 | /* Unused: */ | |
43646c9d KH |
708 | HOWTO (IMAGE_REL_PPC_REFHI, /* type */ |
709 | 0, /* rightshift */ | |
710 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
711 | 16, /* bitsize */ | |
712 | false, /* pc_relative */ | |
713 | 0, /* bitpos */ | |
252b5132 | 714 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 715 | ppc_refhi_reloc, /* special_function */ |
252b5132 | 716 | "REFHI", /* name */ |
43646c9d KH |
717 | true, /* partial_inplace */ |
718 | 0xffffffff, /* src_mask */ | |
719 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
720 | false), /* pcrel_offset */ |
721 | ||
722 | /* IMAGE_REL_PPC_REFLO 0x0011 */ | |
723 | /* Unused: */ | |
43646c9d KH |
724 | HOWTO (IMAGE_REL_PPC_REFLO, /* type */ |
725 | 0, /* rightshift */ | |
726 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
727 | 16, /* bitsize */ | |
728 | false, /* pc_relative */ | |
729 | 0, /* bitpos */ | |
252b5132 | 730 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 731 | ppc_refhi_reloc, /* special_function */ |
252b5132 | 732 | "REFLO", /* name */ |
43646c9d KH |
733 | true, /* partial_inplace */ |
734 | 0xffffffff, /* src_mask */ | |
735 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
736 | false), /* pcrel_offset */ |
737 | ||
738 | /* IMAGE_REL_PPC_PAIR 0x0012 */ | |
739 | /* Unused: */ | |
43646c9d KH |
740 | HOWTO (IMAGE_REL_PPC_PAIR, /* type */ |
741 | 0, /* rightshift */ | |
742 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
743 | 16, /* bitsize */ | |
744 | false, /* pc_relative */ | |
745 | 0, /* bitpos */ | |
252b5132 | 746 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 747 | ppc_pair_reloc, /* special_function */ |
252b5132 | 748 | "PAIR", /* name */ |
43646c9d KH |
749 | true, /* partial_inplace */ |
750 | 0xffffffff, /* src_mask */ | |
751 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
752 | false), /* pcrel_offset */ |
753 | ||
754 | /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */ | |
755 | /* 16-bit offset from TOC base, without causing a definition */ | |
756 | /* Used: */ | |
43646c9d KH |
757 | HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */ |
758 | 0, /* rightshift */ | |
759 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
760 | 16, /* bitsize */ | |
761 | false, /* pc_relative */ | |
762 | 0, /* bitpos */ | |
252b5132 | 763 | complain_overflow_dont, /* complain_on_overflow */ |
43646c9d | 764 | 0, /* special_function */ |
252b5132 | 765 | "TOCREL16, TOCDEFN", /* name */ |
43646c9d KH |
766 | false, /* partial_inplace */ |
767 | 0xffff, /* src_mask */ | |
768 | 0xffff, /* dst_mask */ | |
252b5132 RH |
769 | false), /* pcrel_offset */ |
770 | ||
771 | }; | |
772 | ||
252b5132 RH |
773 | \f |
774 | ||
775 | /* Some really cheezy macros that can be turned on to test stderr :-) */ | |
776 | ||
777 | #ifdef DEBUG_RELOC | |
778 | #define UN_IMPL(x) \ | |
779 | { \ | |
780 | static int i; \ | |
781 | if (i == 0) \ | |
782 | { \ | |
783 | i = 1; \ | |
784 | fprintf(stderr,_("Unimplemented Relocation -- %s\n"),x); \ | |
785 | } \ | |
786 | } | |
787 | ||
788 | #define DUMP_RELOC(n,r) \ | |
789 | { \ | |
790 | fprintf(stderr,"%s sym %d, addr %d, addend %d\n", \ | |
791 | n, (*(r->sym_ptr_ptr))->name, \ | |
792 | r->address, r->addend); \ | |
793 | } | |
794 | ||
43646c9d KH |
795 | /* Given a reloc name, n, and a pointer to an internal_reloc, |
796 | dump out interesting information on the contents | |
252b5132 RH |
797 | |
798 | #define n_name _n._n_name | |
799 | #define n_zeroes _n._n_n._n_zeroes | |
800 | #define n_offset _n._n_n._n_offset | |
801 | ||
802 | */ | |
803 | ||
804 | #define DUMP_RELOC2(n,r) \ | |
805 | { \ | |
806 | fprintf(stderr,"%s sym %d, r_vaddr %d %s\n", \ | |
807 | n, r->r_symndx, r->r_vaddr,\ | |
808 | (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \ | |
809 | ?" ":" TOCDEFN" ); \ | |
810 | } | |
811 | ||
812 | #else | |
813 | #define UN_IMPL(x) | |
814 | #define DUMP_RELOC(n,r) | |
815 | #define DUMP_RELOC2(n,r) | |
816 | #endif | |
817 | ||
252b5132 RH |
818 | \f |
819 | /* toc construction and management routines */ | |
820 | ||
821 | /* This file is compiled twice, and these variables are defined in one | |
822 | of the compilations. FIXME: This is confusing and weird. Also, | |
823 | BFD should not use global variables. */ | |
824 | extern bfd* bfd_of_toc_owner; | |
825 | extern long int global_toc_size; | |
826 | ||
827 | extern long int import_table_size; | |
828 | extern long int first_thunk_address; | |
829 | extern long int thunk_size; | |
830 | ||
831 | enum toc_type | |
832 | { | |
833 | default_toc, | |
834 | toc_32, | |
835 | toc_64 | |
836 | }; | |
837 | ||
838 | enum ref_category | |
839 | { | |
840 | priv, | |
841 | pub, | |
842 | data | |
843 | }; | |
844 | ||
845 | struct list_ele | |
846 | { | |
847 | struct list_ele *next; | |
848 | bfd_vma addr; | |
849 | enum ref_category cat; | |
850 | int offset; | |
851 | const char *name; | |
852 | }; | |
853 | ||
854 | extern struct list_ele *head; | |
855 | extern struct list_ele *tail; | |
856 | ||
857 | static void record_toc | |
858 | PARAMS ((asection *, int, enum ref_category, const char *)); | |
859 | ||
860 | static void | |
861 | record_toc (toc_section, our_toc_offset, cat, name) | |
862 | asection *toc_section; | |
863 | int our_toc_offset; | |
864 | enum ref_category cat; | |
865 | const char *name; | |
866 | { | |
867 | /* add this entry to our toc addr-offset-name list */ | |
868 | struct list_ele *t; | |
869 | t = (struct list_ele *) bfd_malloc (sizeof (struct list_ele)); | |
870 | if (t == NULL) | |
871 | abort (); | |
872 | t->next = 0; | |
873 | t->offset = our_toc_offset; | |
874 | t->name = name; | |
875 | t->cat = cat; | |
876 | t->addr = toc_section->output_offset + our_toc_offset; | |
877 | ||
878 | if (head == 0) | |
879 | { | |
880 | head = t; | |
881 | tail = t; | |
882 | } | |
883 | else | |
884 | { | |
885 | tail->next = t; | |
886 | tail = t; | |
887 | } | |
888 | } | |
889 | ||
890 | #ifdef COFF_IMAGE_WITH_PE | |
891 | ||
892 | static boolean ppc_record_toc_entry | |
893 | PARAMS ((bfd *, struct bfd_link_info *, asection *, int, enum toc_type)); | |
894 | static void ppc_mark_symbol_as_glue | |
895 | PARAMS ((bfd *, int, struct internal_reloc *)); | |
896 | ||
897 | /* record a toc offset against a symbol */ | |
898 | static boolean | |
899 | ppc_record_toc_entry(abfd, info, sec, sym, toc_kind) | |
900 | bfd *abfd; | |
5f771d47 ILT |
901 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
902 | asection *sec ATTRIBUTE_UNUSED; | |
252b5132 | 903 | int sym; |
5f771d47 | 904 | enum toc_type toc_kind ATTRIBUTE_UNUSED; |
252b5132 RH |
905 | { |
906 | struct ppc_coff_link_hash_entry *h; | |
907 | const char *name; | |
908 | ||
909 | int *local_syms; | |
910 | ||
911 | h = 0; | |
912 | ||
913 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
914 | if (h != 0) | |
915 | { | |
916 | HASH_CHECK(h); | |
917 | } | |
918 | ||
43646c9d KH |
919 | if (h == 0) |
920 | { | |
252b5132 RH |
921 | local_syms = obj_coff_local_toc_table(abfd); |
922 | if (local_syms == 0) | |
923 | { | |
924 | unsigned int i; | |
925 | /* allocate a table */ | |
43646c9d KH |
926 | local_syms = |
927 | (int *) bfd_zalloc (abfd, | |
252b5132 RH |
928 | obj_raw_syment_count(abfd) * sizeof(int)); |
929 | if (local_syms == 0) | |
930 | return false; | |
931 | obj_coff_local_toc_table(abfd) = local_syms; | |
932 | for (i = 0; i < obj_raw_syment_count(abfd); ++i) | |
933 | { | |
934 | SET_UNALLOCATED(local_syms[i]); | |
935 | } | |
936 | } | |
937 | ||
43646c9d | 938 | if (IS_UNALLOCATED(local_syms[sym])) |
252b5132 RH |
939 | { |
940 | local_syms[sym] = global_toc_size; | |
941 | global_toc_size += 4; | |
942 | ||
943 | /* The size must fit in a 16bit displacment */ | |
944 | if (global_toc_size > 65535) | |
945 | { | |
946 | (*_bfd_error_handler) (_("TOC overflow")); | |
947 | bfd_set_error (bfd_error_file_too_big); | |
948 | return false; | |
949 | } | |
950 | } | |
951 | } | |
952 | else | |
953 | { | |
954 | name = h->root.root.root.string; | |
955 | ||
956 | /* check to see if there's a toc slot allocated. If not, do it | |
957 | here. It will be used in relocate_section */ | |
958 | if (IS_UNALLOCATED(h->toc_offset)) | |
959 | { | |
960 | h->toc_offset = global_toc_size; | |
961 | global_toc_size += 4; | |
962 | ||
963 | /* The size must fit in a 16bit displacment */ | |
964 | if (global_toc_size >= 65535) | |
965 | { | |
966 | (*_bfd_error_handler) (_("TOC overflow")); | |
967 | bfd_set_error (bfd_error_file_too_big); | |
968 | return false; | |
969 | } | |
970 | } | |
971 | } | |
972 | ||
973 | return true; | |
974 | } | |
975 | ||
976 | /* record a toc offset against a symbol */ | |
977 | static void | |
978 | ppc_mark_symbol_as_glue(abfd, sym, rel) | |
979 | bfd *abfd; | |
980 | int sym; | |
981 | struct internal_reloc *rel; | |
982 | { | |
983 | struct ppc_coff_link_hash_entry *h; | |
984 | ||
985 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
986 | ||
987 | HASH_CHECK(h); | |
988 | ||
989 | h->symbol_is_glue = 1; | |
990 | h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr); | |
991 | ||
992 | return; | |
993 | } | |
994 | ||
995 | #endif /* COFF_IMAGE_WITH_PE */ | |
996 | \f | |
997 | ||
998 | /* Return true if this relocation should | |
43646c9d | 999 | appear in the output .reloc section. */ |
252b5132 RH |
1000 | |
1001 | static boolean in_reloc_p(abfd, howto) | |
5f771d47 | 1002 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1003 | reloc_howto_type *howto; |
1004 | { | |
43646c9d KH |
1005 | return |
1006 | (! howto->pc_relative) | |
252b5132 RH |
1007 | && (howto->type != IMAGE_REL_PPC_ADDR32NB) |
1008 | && (howto->type != IMAGE_REL_PPC_TOCREL16) | |
1009 | && (howto->type != IMAGE_REL_PPC_IMGLUE) | |
43646c9d | 1010 | && (howto->type != IMAGE_REL_PPC_IFGLUE) |
252b5132 RH |
1011 | && (howto->type != IMAGE_REL_PPC_SECREL) |
1012 | && (howto->type != IMAGE_REL_PPC_SECTION) | |
1013 | && (howto->type != IMAGE_REL_PPC_SECREL16) | |
1014 | && (howto->type != IMAGE_REL_PPC_REFHI) | |
1015 | && (howto->type != IMAGE_REL_PPC_REFLO) | |
1016 | && (howto->type != IMAGE_REL_PPC_PAIR) | |
1017 | && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ; | |
43646c9d | 1018 | } |
252b5132 RH |
1019 | |
1020 | #if 0 | |
1021 | ||
1022 | /* this function is in charge of performing all the ppc PE relocations */ | |
1023 | /* Don't yet know if we want to do this this particular way ... (krk) */ | |
1024 | /* FIXME: (it is not yet enabled) */ | |
1025 | ||
1026 | static bfd_reloc_status_type | |
1027 | pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
1028 | error_message) | |
1029 | bfd *abfd; | |
1030 | arelent *reloc_entry; | |
1031 | asymbol *symbol_in; | |
1032 | PTR data; | |
1033 | asection *input_section; | |
1034 | bfd *output_bfd; | |
1035 | char **error_message; | |
1036 | { | |
1037 | /* the consth relocation comes in two parts, we have to remember | |
1038 | the state between calls, in these variables */ | |
1039 | static boolean part1_consth_active = false; | |
1040 | static unsigned long part1_consth_value; | |
1041 | ||
1042 | unsigned long sym_value; | |
1043 | unsigned short r_type; | |
1044 | unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/ | |
43646c9d | 1045 | |
252b5132 RH |
1046 | r_type = reloc_entry->howto->type; |
1047 | ||
43646c9d | 1048 | if (output_bfd) |
252b5132 RH |
1049 | { |
1050 | /* Partial linking - do nothing */ | |
1051 | reloc_entry->address += input_section->output_offset; | |
43646c9d | 1052 | return bfd_reloc_ok; |
252b5132 RH |
1053 | } |
1054 | ||
1055 | if (symbol_in != NULL | |
1056 | && bfd_is_und_section (symbol_in->section)) | |
1057 | { | |
1058 | /* Keep the state machine happy in case we're called again */ | |
43646c9d | 1059 | if (r_type == IMAGE_REL_PPC_REFHI) |
252b5132 RH |
1060 | { |
1061 | part1_consth_active = true; | |
1062 | part1_consth_value = 0; | |
1063 | } | |
1064 | return(bfd_reloc_undefined); | |
1065 | } | |
43646c9d KH |
1066 | |
1067 | if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR)) | |
252b5132 RH |
1068 | { |
1069 | part1_consth_active = false; | |
1070 | *error_message = (char *) _("Missing PAIR"); | |
1071 | return(bfd_reloc_dangerous); | |
1072 | } | |
1073 | ||
252b5132 | 1074 | sym_value = get_symbol_value(symbol_in); |
43646c9d KH |
1075 | |
1076 | return(bfd_reloc_ok); | |
252b5132 RH |
1077 | } |
1078 | ||
1079 | #endif /* 0 */ | |
1080 | ||
1081 | /* The reloc processing routine for the optimized COFF linker. */ | |
1082 | ||
1083 | static boolean | |
1084 | coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section, | |
1085 | contents, relocs, syms, sections) | |
1086 | bfd *output_bfd; | |
1087 | struct bfd_link_info *info; | |
1088 | bfd *input_bfd; | |
1089 | asection *input_section; | |
1090 | bfd_byte *contents; | |
1091 | struct internal_reloc *relocs; | |
1092 | struct internal_syment *syms; | |
1093 | asection **sections; | |
1094 | { | |
1095 | struct internal_reloc *rel; | |
1096 | struct internal_reloc *relend; | |
1097 | boolean hihalf; | |
1098 | bfd_vma hihalf_val; | |
1099 | asection *toc_section = 0; | |
1100 | bfd_vma relocation; | |
1101 | reloc_howto_type *howto = 0; | |
43646c9d | 1102 | |
252b5132 RH |
1103 | /* If we are performing a relocateable link, we don't need to do a |
1104 | thing. The caller will take care of adjusting the reloc | |
1105 | addresses and symbol indices. */ | |
1106 | if (info->relocateable) | |
1107 | return true; | |
43646c9d | 1108 | |
252b5132 RH |
1109 | hihalf = false; |
1110 | hihalf_val = 0; | |
1111 | ||
1112 | rel = relocs; | |
1113 | relend = rel + input_section->reloc_count; | |
1114 | for (; rel < relend; rel++) | |
1115 | { | |
1116 | long symndx; | |
1117 | struct ppc_coff_link_hash_entry *h; | |
1118 | struct internal_syment *sym; | |
1119 | bfd_vma val; | |
1120 | ||
1121 | asection *sec; | |
1122 | bfd_reloc_status_type rstat; | |
1123 | bfd_byte *loc; | |
1124 | ||
1125 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1126 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
43646c9d | 1127 | |
252b5132 RH |
1128 | symndx = rel->r_symndx; |
1129 | loc = contents + rel->r_vaddr - input_section->vma; | |
1130 | ||
1131 | /* FIXME: check bounds on r_type */ | |
1132 | howto = ppc_coff_howto_table + r_type; | |
1133 | ||
1134 | if (symndx == -1) | |
1135 | { | |
1136 | h = NULL; | |
1137 | sym = NULL; | |
1138 | } | |
1139 | else | |
1140 | { | |
43646c9d | 1141 | h = (struct ppc_coff_link_hash_entry *) |
252b5132 | 1142 | (obj_coff_sym_hashes (input_bfd)[symndx]); |
43646c9d | 1143 | if (h != 0) |
252b5132 RH |
1144 | { |
1145 | HASH_CHECK(h); | |
1146 | } | |
1147 | ||
1148 | sym = syms + symndx; | |
1149 | } | |
1150 | ||
1151 | if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0) | |
1152 | { | |
43646c9d | 1153 | /* An IMGLUE reloc must have a name. Something is very wrong. */ |
252b5132 RH |
1154 | abort(); |
1155 | } | |
1156 | ||
1157 | sec = NULL; | |
1158 | val = 0; | |
1159 | ||
1160 | /* FIXME: PAIR unsupported in the following code */ | |
1161 | if (h == NULL) | |
1162 | { | |
1163 | if (symndx == -1) | |
1164 | sec = bfd_abs_section_ptr; | |
1165 | else | |
1166 | { | |
1167 | sec = sections[symndx]; | |
1168 | val = (sec->output_section->vma | |
1169 | + sec->output_offset | |
1170 | + sym->n_value); | |
1171 | if (! obj_pe (output_bfd)) | |
1172 | val -= sec->vma; | |
1173 | } | |
1174 | } | |
1175 | else | |
1176 | { | |
1177 | HASH_CHECK(h); | |
1178 | ||
1179 | if (h->root.root.type == bfd_link_hash_defined | |
1180 | || h->root.root.type == bfd_link_hash_defweak) | |
1181 | { | |
1182 | sec = h->root.root.u.def.section; | |
1183 | val = (h->root.root.u.def.value | |
1184 | + sec->output_section->vma | |
1185 | + sec->output_offset); | |
1186 | } | |
1187 | else | |
1188 | { | |
1189 | if (! ((*info->callbacks->undefined_symbol) | |
1190 | (info, h->root.root.root.string, input_bfd, input_section, | |
5cc7c785 | 1191 | rel->r_vaddr - input_section->vma, true))) |
252b5132 RH |
1192 | return false; |
1193 | } | |
1194 | } | |
1195 | ||
1196 | rstat = bfd_reloc_ok; | |
43646c9d | 1197 | |
252b5132 RH |
1198 | /* Each case must do its own relocation, setting rstat appropriately */ |
1199 | switch (r_type) | |
1200 | { | |
1201 | default: | |
1202 | (*_bfd_error_handler) | |
1203 | (_("%s: unsupported relocation type 0x%02x"), | |
1204 | bfd_get_filename (input_bfd), r_type); | |
1205 | bfd_set_error (bfd_error_bad_value); | |
1206 | return false; | |
1207 | case IMAGE_REL_PPC_TOCREL16: | |
1208 | { | |
1209 | bfd_vma our_toc_offset; | |
1210 | int fixit; | |
1211 | ||
1212 | DUMP_RELOC2(howto->name, rel); | |
1213 | ||
43646c9d | 1214 | if (toc_section == 0) |
252b5132 | 1215 | { |
43646c9d | 1216 | toc_section = bfd_get_section_by_name (bfd_of_toc_owner, |
252b5132 RH |
1217 | TOC_SECTION_NAME); |
1218 | ||
43646c9d | 1219 | if ( toc_section == NULL ) |
252b5132 | 1220 | { |
43646c9d | 1221 | /* There is no toc section. Something is very wrong. */ |
252b5132 RH |
1222 | abort(); |
1223 | } | |
1224 | } | |
1225 | ||
43646c9d | 1226 | /* |
252b5132 RH |
1227 | * Amazing bit tricks present. As we may have seen earlier, we |
1228 | * use the 1 bit to tell us whether or not a toc offset has been | |
1229 | * allocated. Now that they've all been allocated, we will use | |
1230 | * the 1 bit to tell us if we've written this particular toc | |
1231 | * entry out. | |
1232 | */ | |
1233 | fixit = false; | |
1234 | if (h == 0) | |
1235 | { /* it is a file local symbol */ | |
1236 | int *local_toc_table; | |
1237 | const char *name; | |
1238 | ||
1239 | sym = syms + symndx; | |
1240 | name = sym->_n._n_name; | |
1241 | ||
1242 | local_toc_table = obj_coff_local_toc_table(input_bfd); | |
1243 | our_toc_offset = local_toc_table[symndx]; | |
1244 | ||
1245 | if (IS_WRITTEN(our_toc_offset)) | |
1246 | { | |
43646c9d | 1247 | /* if it has been written out, it is marked with the |
252b5132 RH |
1248 | 1 bit. Fix up our offset, but do not write it out |
1249 | again. | |
1250 | */ | |
1251 | MAKE_ADDR_AGAIN(our_toc_offset); | |
1252 | } | |
1253 | else | |
1254 | { | |
1255 | /* write out the toc entry */ | |
43646c9d KH |
1256 | record_toc(toc_section, |
1257 | our_toc_offset, | |
1258 | priv, | |
252b5132 RH |
1259 | strdup(name)); |
1260 | ||
1261 | bfd_put_32(output_bfd, | |
1262 | val, | |
1263 | toc_section->contents + our_toc_offset); | |
1264 | ||
1265 | MARK_AS_WRITTEN(local_toc_table[symndx]); | |
1266 | fixit = true; | |
1267 | } | |
1268 | } | |
1269 | else | |
1270 | { | |
1271 | const char *name = h->root.root.root.string; | |
1272 | our_toc_offset = h->toc_offset; | |
1273 | ||
43646c9d | 1274 | if ((r_flags & IMAGE_REL_PPC_TOCDEFN) |
252b5132 RH |
1275 | == IMAGE_REL_PPC_TOCDEFN ) |
1276 | { | |
43646c9d KH |
1277 | /* This is unbelievable cheese. Some knowledgable asm |
1278 | hacker has decided to use r2 as a base for loading | |
1279 | a value. He/She does this by setting the tocdefn bit, | |
1280 | and not supplying a toc definition. The behaviour is | |
1281 | then to use the difference between the value of the | |
1282 | symbol and the actual location of the toc as the toc | |
1283 | index. | |
252b5132 RH |
1284 | |
1285 | In fact, what is usually happening is, because the | |
1286 | Import Address Table is mapped immediately following | |
1287 | the toc, some trippy library code trying for speed on | |
43646c9d | 1288 | dll linkage, takes advantage of that and considers |
252b5132 RH |
1289 | the IAT to be part of the toc, thus saving a load. |
1290 | */ | |
1291 | ||
43646c9d KH |
1292 | our_toc_offset = val - |
1293 | (toc_section->output_section->vma + | |
252b5132 RH |
1294 | toc_section->output_offset); |
1295 | ||
1296 | /* The size must still fit in a 16bit displacment */ | |
1297 | if (our_toc_offset >= 65535) | |
1298 | { | |
1299 | (*_bfd_error_handler) | |
43646c9d | 1300 | (_("%s: Relocation for %s of %x exceeds Toc size limit"), |
252b5132 RH |
1301 | bfd_get_filename (input_bfd), name, our_toc_offset); |
1302 | bfd_set_error (bfd_error_bad_value); | |
1303 | return false; | |
1304 | } | |
1305 | ||
1306 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); | |
1307 | } | |
1308 | else if (IS_WRITTEN(our_toc_offset)) | |
1309 | { | |
43646c9d | 1310 | /* if it has been written out, it is marked with the |
252b5132 RH |
1311 | 1 bit. Fix up our offset, but do not write it out |
1312 | again. | |
1313 | */ | |
1314 | MAKE_ADDR_AGAIN(our_toc_offset); | |
1315 | } | |
1316 | else | |
1317 | { | |
1318 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); | |
1319 | ||
1320 | /* write out the toc entry */ | |
1321 | bfd_put_32(output_bfd, | |
1322 | val, | |
1323 | toc_section->contents + our_toc_offset); | |
1324 | ||
1325 | MARK_AS_WRITTEN(h->toc_offset); | |
1326 | /* The tricky part is that this is the address that */ | |
1327 | /* needs a .reloc entry for it */ | |
1328 | fixit = true; | |
1329 | } | |
1330 | } | |
1331 | ||
43646c9d | 1332 | if (fixit && info->base_file) |
252b5132 RH |
1333 | { |
1334 | /* So if this is non pcrelative, and is referenced | |
1335 | to a section or a common symbol, then it needs a reloc */ | |
1336 | ||
1337 | /* relocation to a symbol in a section which | |
43646c9d | 1338 | isn't absolute - we output the address here |
252b5132 RH |
1339 | to a file */ |
1340 | ||
1341 | bfd_vma addr = toc_section->output_section->vma | |
1342 | + toc_section->output_offset + our_toc_offset; | |
43646c9d | 1343 | |
252b5132 RH |
1344 | if (coff_data(output_bfd)->pe) |
1345 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1346 | ||
1347 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1348 | } | |
1349 | ||
252b5132 RH |
1350 | /* FIXME: this test is conservative */ |
1351 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN && | |
1352 | our_toc_offset > toc_section->_raw_size) | |
1353 | { | |
1354 | (*_bfd_error_handler) | |
43646c9d | 1355 | (_("%s: Relocation exceeds allocated TOC (%x)"), |
252b5132 RH |
1356 | bfd_get_filename (input_bfd), |
1357 | toc_section->_raw_size); | |
1358 | bfd_set_error (bfd_error_bad_value); | |
1359 | return false; | |
1360 | } | |
1361 | ||
1362 | /* Now we know the relocation for this toc reference */ | |
1363 | relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT; | |
1364 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1365 | input_bfd, |
1366 | relocation, | |
252b5132 RH |
1367 | loc); |
1368 | } | |
1369 | break; | |
1370 | case IMAGE_REL_PPC_IFGLUE: | |
1371 | { | |
1372 | /* To solve this, we need to know whether or not the symbol */ | |
43646c9d | 1373 | /* appearing on the call instruction is a glue function or not. */ |
252b5132 RH |
1374 | /* A glue function must announce itself via a IMGLUE reloc, and */ |
1375 | /* the reloc contains the required toc restore instruction */ | |
43646c9d | 1376 | |
252b5132 RH |
1377 | bfd_vma x; |
1378 | const char *my_name; | |
1379 | DUMP_RELOC2(howto->name, rel); | |
1380 | ||
1381 | if (h != 0) | |
1382 | { | |
1383 | my_name = h->root.root.root.string; | |
43646c9d | 1384 | if (h->symbol_is_glue == 1) |
252b5132 RH |
1385 | { |
1386 | x = bfd_get_32(input_bfd, loc); | |
1387 | bfd_put_32(input_bfd, h->glue_insn, loc); | |
1388 | } | |
1389 | } | |
1390 | } | |
1391 | break; | |
1392 | case IMAGE_REL_PPC_SECREL: | |
1393 | /* Unimplemented: codeview debugging information */ | |
43646c9d KH |
1394 | /* For fast access to the header of the section |
1395 | containing the item. */ | |
252b5132 RH |
1396 | break; |
1397 | case IMAGE_REL_PPC_SECTION: | |
1398 | /* Unimplemented: codeview debugging information */ | |
1399 | /* Is used to indicate that the value should be relative | |
1400 | to the beginning of the section that contains the | |
1401 | symbol */ | |
1402 | break; | |
1403 | case IMAGE_REL_PPC_ABSOLUTE: | |
1404 | { | |
1405 | const char *my_name; | |
1406 | if (h == 0) | |
1407 | my_name = (syms+symndx)->_n._n_name; | |
1408 | else | |
1409 | { | |
1410 | my_name = h->root.root.root.string; | |
1411 | } | |
1412 | ||
43646c9d KH |
1413 | fprintf(stderr, |
1414 | _("Warning: unsupported reloc %s <file %s, section %s>\n"), | |
252b5132 RH |
1415 | howto->name, |
1416 | bfd_get_filename(input_bfd), | |
1417 | input_section->name); | |
1418 | ||
43646c9d | 1419 | fprintf(stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n", |
252b5132 | 1420 | rel->r_symndx, my_name, (long) rel->r_vaddr, |
43646c9d | 1421 | (unsigned long) rel->r_vaddr); |
252b5132 RH |
1422 | } |
1423 | break; | |
1424 | case IMAGE_REL_PPC_IMGLUE: | |
1425 | { | |
1426 | /* There is nothing to do now. This reloc was noted in the first | |
1427 | pass over the relocs, and the glue instruction extracted */ | |
1428 | const char *my_name; | |
43646c9d | 1429 | if (h->symbol_is_glue == 1) |
252b5132 RH |
1430 | break; |
1431 | my_name = h->root.root.root.string; | |
1432 | ||
1433 | (*_bfd_error_handler) | |
43646c9d | 1434 | (_("%s: Out of order IMGLUE reloc for %s"), |
252b5132 RH |
1435 | bfd_get_filename (input_bfd), my_name); |
1436 | bfd_set_error (bfd_error_bad_value); | |
1437 | return false; | |
1438 | } | |
1439 | ||
1440 | case IMAGE_REL_PPC_ADDR32NB: | |
1441 | { | |
1442 | struct coff_link_hash_entry *myh = 0; | |
1443 | const char *name = 0; | |
1444 | DUMP_RELOC2(howto->name, rel); | |
1445 | ||
1446 | if (strncmp(".idata$2",input_section->name,8) == 0 && first_thunk_address == 0) | |
1447 | { | |
1448 | /* set magic values */ | |
1449 | int idata5offset; | |
1450 | struct coff_link_hash_entry *myh = 0; | |
1451 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1452 | "__idata5_magic__", | |
1453 | false, false, true); | |
43646c9d KH |
1454 | first_thunk_address = myh->root.u.def.value + |
1455 | sec->output_section->vma + | |
1456 | sec->output_offset - | |
252b5132 | 1457 | pe_data(output_bfd)->pe_opthdr.ImageBase; |
43646c9d | 1458 | |
252b5132 RH |
1459 | idata5offset = myh->root.u.def.value; |
1460 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1461 | "__idata6_magic__", | |
1462 | false, false, true); | |
43646c9d | 1463 | |
252b5132 RH |
1464 | thunk_size = myh->root.u.def.value - idata5offset; |
1465 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1466 | "__idata4_magic__", | |
1467 | false, false, true); | |
1468 | import_table_size = myh->root.u.def.value; | |
1469 | } | |
1470 | ||
1471 | if (h == 0) | |
1472 | { /* it is a file local symbol */ | |
1473 | sym = syms + symndx; | |
1474 | name = sym->_n._n_name; | |
1475 | } | |
1476 | else | |
1477 | { | |
1478 | char *target = 0; | |
1479 | ||
1480 | name = h->root.root.root.string; | |
1481 | if (strcmp(".idata$2", name) == 0) | |
1482 | target = "__idata2_magic__"; | |
1483 | else if (strcmp(".idata$4", name) == 0) | |
1484 | target = "__idata4_magic__"; | |
1485 | else if (strcmp(".idata$5", name) == 0) | |
1486 | target = "__idata5_magic__"; | |
1487 | ||
1488 | if (target != 0) | |
1489 | { | |
1490 | myh = 0; | |
1491 | ||
1492 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1493 | target, | |
1494 | false, false, true); | |
43646c9d | 1495 | if (myh == 0) |
252b5132 | 1496 | { |
43646c9d | 1497 | /* Missing magic cookies. Something is very wrong. */ |
252b5132 RH |
1498 | abort(); |
1499 | } | |
43646c9d KH |
1500 | |
1501 | val = myh->root.u.def.value + | |
252b5132 RH |
1502 | sec->output_section->vma + sec->output_offset; |
1503 | if (first_thunk_address == 0) | |
1504 | { | |
1505 | int idata5offset; | |
1506 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1507 | "__idata5_magic__", | |
1508 | false, false, true); | |
43646c9d KH |
1509 | first_thunk_address = myh->root.u.def.value + |
1510 | sec->output_section->vma + | |
1511 | sec->output_offset - | |
252b5132 | 1512 | pe_data(output_bfd)->pe_opthdr.ImageBase; |
43646c9d | 1513 | |
252b5132 RH |
1514 | idata5offset = myh->root.u.def.value; |
1515 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1516 | "__idata6_magic__", | |
1517 | false, false, true); | |
43646c9d | 1518 | |
252b5132 RH |
1519 | thunk_size = myh->root.u.def.value - idata5offset; |
1520 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1521 | "__idata4_magic__", | |
1522 | false, false, true); | |
1523 | import_table_size = myh->root.u.def.value; | |
1524 | } | |
1525 | } | |
1526 | } | |
1527 | ||
1528 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1529 | input_bfd, |
1530 | val - | |
252b5132 RH |
1531 | pe_data(output_bfd)->pe_opthdr.ImageBase, |
1532 | loc); | |
1533 | } | |
1534 | break; | |
1535 | ||
1536 | case IMAGE_REL_PPC_REL24: | |
1537 | DUMP_RELOC2(howto->name, rel); | |
1538 | val -= (input_section->output_section->vma | |
1539 | + input_section->output_offset); | |
1540 | ||
1541 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1542 | input_bfd, |
1543 | val, | |
252b5132 RH |
1544 | loc); |
1545 | break; | |
1546 | case IMAGE_REL_PPC_ADDR16: | |
1547 | case IMAGE_REL_PPC_ADDR24: | |
1548 | case IMAGE_REL_PPC_ADDR32: | |
1549 | DUMP_RELOC2(howto->name, rel); | |
1550 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1551 | input_bfd, |
1552 | val, | |
252b5132 RH |
1553 | loc); |
1554 | break; | |
1555 | } | |
1556 | ||
1557 | if ( info->base_file ) | |
1558 | { | |
1559 | /* So if this is non pcrelative, and is referenced | |
1560 | to a section or a common symbol, then it needs a reloc */ | |
1561 | if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto)) | |
1562 | { | |
1563 | /* relocation to a symbol in a section which | |
43646c9d | 1564 | isn't absolute - we output the address here |
252b5132 | 1565 | to a file */ |
43646c9d KH |
1566 | bfd_vma addr = rel->r_vaddr |
1567 | - input_section->vma | |
1568 | + input_section->output_offset | |
252b5132 RH |
1569 | + input_section->output_section->vma; |
1570 | ||
1571 | if (coff_data(output_bfd)->pe) | |
1572 | { | |
1573 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1574 | } | |
1575 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1576 | } | |
1577 | } | |
1578 | ||
1579 | switch (rstat) | |
1580 | { | |
1581 | default: | |
1582 | abort (); | |
1583 | case bfd_reloc_ok: | |
1584 | break; | |
1585 | case bfd_reloc_overflow: | |
1586 | { | |
1587 | const char *name; | |
1588 | char buf[SYMNMLEN + 1]; | |
1589 | ||
1590 | if (symndx == -1) | |
1591 | name = "*ABS*"; | |
1592 | else if (h != NULL) | |
1593 | name = h->root.root.root.string; | |
1594 | else if (sym == NULL) | |
1595 | name = "*unknown*"; | |
1596 | else if (sym->_n._n_n._n_zeroes == 0 | |
1597 | && sym->_n._n_n._n_offset != 0) | |
1598 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; | |
1599 | else | |
1600 | { | |
1601 | strncpy (buf, sym->_n._n_name, SYMNMLEN); | |
1602 | buf[SYMNMLEN] = '\0'; | |
1603 | name = buf; | |
1604 | } | |
1605 | ||
1606 | if (! ((*info->callbacks->reloc_overflow) | |
43646c9d | 1607 | (info, name, howto->name, |
252b5132 RH |
1608 | (bfd_vma) 0, input_bfd, |
1609 | input_section, rel->r_vaddr - input_section->vma))) | |
1610 | { | |
1611 | return false; | |
1612 | } | |
1613 | } | |
1614 | } | |
1615 | ||
43646c9d | 1616 | } |
252b5132 RH |
1617 | |
1618 | return true; | |
1619 | } | |
1620 | ||
1621 | #ifdef COFF_IMAGE_WITH_PE | |
1622 | ||
1623 | /* FIXME: BFD should not use global variables. This file is compiled | |
1624 | twice, and these variables are shared. This is confusing and | |
1625 | weird. */ | |
1626 | ||
1627 | long int global_toc_size = 4; | |
1628 | ||
1629 | bfd* bfd_of_toc_owner = 0; | |
1630 | ||
1631 | long int import_table_size; | |
1632 | long int first_thunk_address; | |
1633 | long int thunk_size; | |
1634 | ||
1635 | struct list_ele *head; | |
1636 | struct list_ele *tail; | |
1637 | ||
1638 | static char * | |
1639 | h1 = N_("\n\t\t\tTOC MAPPING\n\n"); | |
1640 | static char * | |
1641 | h2 = N_(" TOC disassembly Comments Name\n"); | |
1642 | static char * | |
1643 | h3 = N_(" Offset spelling (if present)\n"); | |
1644 | ||
1645 | void | |
1646 | dump_toc (vfile) | |
1647 | PTR vfile; | |
1648 | { | |
1649 | FILE *file = (FILE *) vfile; | |
1650 | struct list_ele *t; | |
1651 | ||
1652 | fprintf(file, _(h1)); | |
1653 | fprintf(file, _(h2)); | |
1654 | fprintf(file, _(h3)); | |
1655 | ||
1656 | for(t = head; t != 0; t=t->next) | |
1657 | { | |
1658 | const char *cat = ""; | |
1659 | ||
1660 | if (t->cat == priv) | |
1661 | cat = _("private "); | |
1662 | else if (t->cat == pub) | |
1663 | cat = _("public "); | |
1664 | else if (t->cat == data) | |
1665 | cat = _("data-in-toc "); | |
1666 | ||
1667 | if (t->offset > global_toc_size) | |
1668 | { | |
1669 | if (t->offset <= global_toc_size + thunk_size) | |
1670 | cat = _("IAT reference "); | |
1671 | else | |
1672 | { | |
1673 | fprintf(file, | |
1674 | _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"), | |
1675 | global_toc_size, global_toc_size, thunk_size, thunk_size); | |
1676 | cat = _("Out of bounds!"); | |
1677 | } | |
1678 | } | |
1679 | ||
1680 | fprintf(file, | |
1681 | " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768); | |
1682 | fprintf(file, | |
1683 | " %s %s\n", | |
1684 | cat, t->name); | |
1685 | ||
1686 | } | |
1687 | ||
1688 | fprintf(file, "\n"); | |
1689 | } | |
1690 | ||
1691 | boolean | |
43646c9d | 1692 | ppc_allocate_toc_section (info) |
5f771d47 | 1693 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1694 | { |
1695 | asection *s; | |
1696 | bfd_byte *foo; | |
1697 | static char test_char = '1'; | |
1698 | ||
1699 | if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */ | |
1700 | return true; | |
1701 | ||
1702 | if (bfd_of_toc_owner == 0) | |
1703 | { | |
43646c9d | 1704 | /* No toc owner? Something is very wrong. */ |
252b5132 RH |
1705 | abort(); |
1706 | } | |
1707 | ||
1708 | s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME); | |
43646c9d | 1709 | if (s == NULL) |
252b5132 | 1710 | { |
43646c9d | 1711 | /* No toc section? Something is very wrong. */ |
252b5132 RH |
1712 | abort(); |
1713 | } | |
1714 | ||
1715 | foo = (bfd_byte *) bfd_alloc(bfd_of_toc_owner, global_toc_size); | |
1716 | memset(foo, test_char, global_toc_size); | |
1717 | ||
1718 | s->_raw_size = s->_cooked_size = global_toc_size; | |
1719 | s->contents = foo; | |
1720 | ||
1721 | return true; | |
1722 | } | |
1723 | ||
1724 | boolean | |
1725 | ppc_process_before_allocation (abfd, info) | |
1726 | bfd *abfd; | |
1727 | struct bfd_link_info *info; | |
1728 | { | |
1729 | asection *sec; | |
1730 | struct internal_reloc *i, *rel; | |
1731 | ||
1732 | /* here we have a bfd that is to be included on the link. We have a hook | |
43646c9d | 1733 | to do reloc rummaging, before section sizes are nailed down. */ |
252b5132 RH |
1734 | |
1735 | _bfd_coff_get_external_symbols(abfd); | |
1736 | ||
1737 | /* rummage around all the relocs and map the toc */ | |
1738 | sec = abfd->sections; | |
1739 | ||
1740 | if (sec == 0) | |
1741 | { | |
1742 | return true; | |
1743 | } | |
1744 | ||
1745 | for (; sec != 0; sec = sec->next) | |
1746 | { | |
43646c9d | 1747 | if (sec->reloc_count == 0) |
252b5132 RH |
1748 | continue; |
1749 | ||
1750 | /* load the relocs */ | |
1751 | /* FIXME: there may be a storage leak here */ | |
1752 | i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0); | |
43646c9d | 1753 | |
252b5132 RH |
1754 | if (i == 0) |
1755 | abort(); | |
1756 | ||
43646c9d | 1757 | for (rel=i;rel<i+sec->reloc_count;++rel) |
252b5132 RH |
1758 | { |
1759 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1760 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
1761 | boolean ok = true; | |
1762 | ||
1763 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
1764 | ||
43646c9d | 1765 | switch(r_type) |
252b5132 RH |
1766 | { |
1767 | case IMAGE_REL_PPC_TOCREL16: | |
1768 | /* if TOCDEFN is on, ignore as someone else has allocated the | |
1769 | toc entry */ | |
1770 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN ) | |
43646c9d | 1771 | ok = ppc_record_toc_entry(abfd, info, sec, |
252b5132 RH |
1772 | rel->r_symndx, default_toc); |
1773 | if (!ok) | |
1774 | return false; | |
1775 | break; | |
1776 | case IMAGE_REL_PPC_IMGLUE: | |
1777 | ppc_mark_symbol_as_glue(abfd, rel->r_symndx, rel); | |
1778 | break; | |
1779 | default: | |
1780 | break; | |
1781 | } | |
1782 | } | |
1783 | } | |
1784 | ||
1785 | return true; | |
1786 | } | |
1787 | ||
1788 | #endif | |
1789 | ||
252b5132 RH |
1790 | static bfd_reloc_status_type |
1791 | ppc_refhi_reloc (abfd, | |
1792 | reloc_entry, | |
1793 | symbol, | |
1794 | data, | |
1795 | input_section, | |
1796 | output_bfd, | |
1797 | error_message) | |
5f771d47 ILT |
1798 | bfd *abfd ATTRIBUTE_UNUSED; |
1799 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1800 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1801 | PTR data ATTRIBUTE_UNUSED; | |
1802 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1803 | bfd *output_bfd; |
5f771d47 | 1804 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1805 | { |
1806 | UN_IMPL("REFHI"); | |
1807 | DUMP_RELOC("REFHI",reloc_entry); | |
1808 | ||
1809 | if (output_bfd == (bfd *) NULL) | |
1810 | return bfd_reloc_continue; | |
1811 | ||
1812 | return bfd_reloc_undefined; | |
1813 | } | |
1814 | ||
1815 | #if 0 | |
1816 | ||
1817 | static bfd_reloc_status_type | |
1818 | ppc_reflo_reloc (abfd, | |
1819 | reloc_entry, | |
1820 | symbol, | |
1821 | data, | |
1822 | input_section, | |
1823 | output_bfd, | |
1824 | error_message) | |
1825 | bfd *abfd; | |
1826 | arelent *reloc_entry; | |
1827 | asymbol *symbol; | |
1828 | PTR data; | |
1829 | asection *input_section; | |
1830 | bfd *output_bfd; | |
1831 | char **error_message; | |
1832 | { | |
1833 | UN_IMPL("REFLO"); | |
1834 | DUMP_RELOC("REFLO",reloc_entry); | |
1835 | ||
1836 | if (output_bfd == (bfd *) NULL) | |
1837 | return bfd_reloc_continue; | |
1838 | ||
1839 | return bfd_reloc_undefined; | |
1840 | } | |
1841 | ||
1842 | #endif | |
1843 | ||
1844 | static bfd_reloc_status_type | |
1845 | ppc_pair_reloc (abfd, | |
1846 | reloc_entry, | |
1847 | symbol, | |
1848 | data, | |
1849 | input_section, | |
1850 | output_bfd, | |
1851 | error_message) | |
5f771d47 ILT |
1852 | bfd *abfd ATTRIBUTE_UNUSED; |
1853 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1854 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1855 | PTR data ATTRIBUTE_UNUSED; | |
1856 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1857 | bfd *output_bfd; |
5f771d47 | 1858 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1859 | { |
1860 | UN_IMPL("PAIR"); | |
1861 | DUMP_RELOC("PAIR",reloc_entry); | |
1862 | ||
1863 | if (output_bfd == (bfd *) NULL) | |
1864 | return bfd_reloc_continue; | |
1865 | ||
1866 | return bfd_reloc_undefined; | |
1867 | } | |
1868 | ||
1869 | \f | |
1870 | static bfd_reloc_status_type | |
1871 | ppc_toc16_reloc (abfd, | |
1872 | reloc_entry, | |
1873 | symbol, | |
1874 | data, | |
1875 | input_section, | |
1876 | output_bfd, | |
1877 | error_message) | |
5f771d47 ILT |
1878 | bfd *abfd ATTRIBUTE_UNUSED; |
1879 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1880 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1881 | PTR data ATTRIBUTE_UNUSED; | |
1882 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1883 | bfd *output_bfd; |
5f771d47 | 1884 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1885 | { |
1886 | UN_IMPL("TOCREL16"); | |
1887 | DUMP_RELOC("TOCREL16",reloc_entry); | |
1888 | ||
1889 | if (output_bfd == (bfd *) NULL) | |
1890 | { | |
1891 | return bfd_reloc_continue; | |
1892 | } | |
1893 | ||
1894 | return bfd_reloc_ok; | |
1895 | } | |
1896 | ||
1897 | #if 0 | |
1898 | ||
1899 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ | |
1900 | /* (On the alpha, this is always a linker generated thunk)*/ | |
1901 | /* (i.e. 32bit addr relative to the image base) */ | |
1902 | /* */ | |
1903 | /* */ | |
1904 | ||
1905 | static bfd_reloc_status_type | |
1906 | ppc_addr32nb_reloc (abfd, | |
1907 | reloc_entry, | |
1908 | symbol, | |
1909 | data, | |
1910 | input_section, | |
1911 | output_bfd, | |
1912 | error_message) | |
1913 | bfd *abfd; | |
1914 | arelent *reloc_entry; | |
1915 | asymbol *symbol; | |
1916 | PTR data; | |
1917 | asection *input_section; | |
1918 | bfd *output_bfd; | |
1919 | char **error_message; | |
1920 | { | |
1921 | UN_IMPL("ADDR32NB"); | |
1922 | DUMP_RELOC("ADDR32NB",reloc_entry); | |
1923 | ||
1924 | return bfd_reloc_ok; | |
1925 | } | |
1926 | ||
1927 | #endif | |
1928 | ||
1929 | static bfd_reloc_status_type | |
1930 | ppc_secrel_reloc (abfd, | |
1931 | reloc_entry, | |
1932 | symbol, | |
1933 | data, | |
1934 | input_section, | |
1935 | output_bfd, | |
1936 | error_message) | |
5f771d47 ILT |
1937 | bfd *abfd ATTRIBUTE_UNUSED; |
1938 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1939 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1940 | PTR data ATTRIBUTE_UNUSED; | |
1941 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1942 | bfd *output_bfd; |
5f771d47 | 1943 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1944 | { |
1945 | UN_IMPL("SECREL"); | |
1946 | DUMP_RELOC("SECREL",reloc_entry); | |
1947 | ||
1948 | if (output_bfd == (bfd *) NULL) | |
1949 | return bfd_reloc_continue; | |
1950 | ||
1951 | return bfd_reloc_ok; | |
1952 | } | |
1953 | ||
1954 | static bfd_reloc_status_type | |
1955 | ppc_section_reloc (abfd, | |
1956 | reloc_entry, | |
1957 | symbol, | |
1958 | data, | |
1959 | input_section, | |
1960 | output_bfd, | |
1961 | error_message) | |
5f771d47 ILT |
1962 | bfd *abfd ATTRIBUTE_UNUSED; |
1963 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1964 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1965 | PTR data ATTRIBUTE_UNUSED; | |
1966 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1967 | bfd *output_bfd; |
5f771d47 | 1968 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1969 | { |
1970 | UN_IMPL("SECTION"); | |
1971 | DUMP_RELOC("SECTION",reloc_entry); | |
1972 | ||
1973 | if (output_bfd == (bfd *) NULL) | |
1974 | return bfd_reloc_continue; | |
1975 | ||
1976 | return bfd_reloc_ok; | |
1977 | } | |
1978 | ||
1979 | static bfd_reloc_status_type | |
1980 | ppc_imglue_reloc (abfd, | |
1981 | reloc_entry, | |
1982 | symbol, | |
1983 | data, | |
1984 | input_section, | |
1985 | output_bfd, | |
1986 | error_message) | |
5f771d47 ILT |
1987 | bfd *abfd ATTRIBUTE_UNUSED; |
1988 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1989 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1990 | PTR data ATTRIBUTE_UNUSED; | |
1991 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1992 | bfd *output_bfd; |
5f771d47 | 1993 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1994 | { |
1995 | UN_IMPL("IMGLUE"); | |
1996 | DUMP_RELOC("IMGLUE",reloc_entry); | |
1997 | ||
1998 | if (output_bfd == (bfd *) NULL) | |
1999 | return bfd_reloc_continue; | |
2000 | ||
2001 | return bfd_reloc_ok; | |
2002 | } | |
2003 | ||
2004 | \f | |
2005 | ||
2006 | #define MAX_RELOC_INDEX \ | |
2007 | (sizeof(ppc_coff_howto_table) / sizeof(ppc_coff_howto_table[0]) - 1) | |
2008 | ||
252b5132 | 2009 | /* FIXME: There is a possiblity that when we read in a reloc from a file, |
43646c9d | 2010 | that there are some bits encoded in the upper portion of the |
252b5132 RH |
2011 | type field. Not yet implemented. |
2012 | */ | |
2013 | static void ppc_coff_rtype2howto PARAMS ((arelent *relent, | |
2014 | struct internal_reloc *internal)); | |
2015 | ||
2016 | static void | |
2017 | ppc_coff_rtype2howto (relent, internal) | |
2018 | arelent *relent; | |
2019 | struct internal_reloc *internal; | |
43646c9d | 2020 | { |
252b5132 RH |
2021 | |
2022 | /* We can encode one of three things in the type field, aside from the | |
2023 | type: | |
2024 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2025 | value, rather than an addition value | |
2026 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2027 | the branch is expected to be taken or not. | |
2028 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2029 | For now, we just strip this stuff to find the type, and ignore it other | |
2030 | than that. | |
2031 | */ | |
2032 | reloc_howto_type *howto; | |
2033 | unsigned short r_type = EXTRACT_TYPE (internal->r_type); | |
2034 | unsigned short r_flags = EXTRACT_FLAGS(internal->r_type); | |
2035 | unsigned short junk = EXTRACT_JUNK (internal->r_type); | |
2036 | ||
43646c9d KH |
2037 | /* the masking process only slices off the bottom byte for r_type. */ |
2038 | if ( r_type > MAX_RELOC_INDEX ) | |
252b5132 RH |
2039 | abort(); |
2040 | ||
2041 | /* check for absolute crap */ | |
2042 | if ( junk != 0 ) | |
2043 | abort(); | |
2044 | ||
43646c9d | 2045 | switch(r_type) |
252b5132 RH |
2046 | { |
2047 | case IMAGE_REL_PPC_ADDR16: | |
2048 | case IMAGE_REL_PPC_REL24: | |
2049 | case IMAGE_REL_PPC_ADDR24: | |
2050 | case IMAGE_REL_PPC_ADDR32: | |
2051 | case IMAGE_REL_PPC_IFGLUE: | |
2052 | case IMAGE_REL_PPC_ADDR32NB: | |
2053 | case IMAGE_REL_PPC_SECTION: | |
2054 | case IMAGE_REL_PPC_SECREL: | |
2055 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2056 | howto = ppc_coff_howto_table + r_type; | |
2057 | break; | |
2058 | case IMAGE_REL_PPC_IMGLUE: | |
2059 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2060 | howto = ppc_coff_howto_table + r_type; | |
2061 | break; | |
2062 | case IMAGE_REL_PPC_TOCREL16: | |
2063 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2064 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) | |
2065 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; | |
2066 | else | |
2067 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; | |
2068 | break; | |
2069 | default: | |
43646c9d | 2070 | fprintf(stderr, |
252b5132 RH |
2071 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), |
2072 | ppc_coff_howto_table[r_type].name, | |
2073 | r_type); | |
43646c9d | 2074 | howto = ppc_coff_howto_table + r_type; |
252b5132 RH |
2075 | break; |
2076 | } | |
43646c9d | 2077 | |
252b5132 | 2078 | relent->howto = howto; |
43646c9d | 2079 | |
252b5132 RH |
2080 | } |
2081 | ||
2082 | static reloc_howto_type * | |
2083 | coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
5f771d47 | 2084 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2085 | asection *sec; |
2086 | struct internal_reloc *rel; | |
5f771d47 ILT |
2087 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED; |
2088 | struct internal_syment *sym ATTRIBUTE_UNUSED; | |
252b5132 RH |
2089 | bfd_vma *addendp; |
2090 | { | |
2091 | reloc_howto_type *howto; | |
2092 | ||
2093 | /* We can encode one of three things in the type field, aside from the | |
2094 | type: | |
2095 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2096 | value, rather than an addition value | |
2097 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2098 | the branch is expected to be taken or not. | |
2099 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2100 | For now, we just strip this stuff to find the type, and ignore it other | |
2101 | than that. | |
2102 | */ | |
2103 | ||
2104 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
2105 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
2106 | unsigned short junk = EXTRACT_JUNK (rel->r_type); | |
2107 | ||
43646c9d KH |
2108 | /* the masking process only slices off the bottom byte for r_type. */ |
2109 | if ( r_type > MAX_RELOC_INDEX ) | |
252b5132 | 2110 | abort(); |
43646c9d | 2111 | |
252b5132 RH |
2112 | /* check for absolute crap */ |
2113 | if ( junk != 0 ) | |
2114 | abort(); | |
43646c9d KH |
2115 | |
2116 | switch(r_type) | |
252b5132 RH |
2117 | { |
2118 | case IMAGE_REL_PPC_ADDR32NB: | |
2119 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2120 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; | |
2121 | howto = ppc_coff_howto_table + r_type; | |
2122 | break; | |
2123 | case IMAGE_REL_PPC_TOCREL16: | |
2124 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2125 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) | |
2126 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; | |
2127 | else | |
2128 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; | |
2129 | break; | |
2130 | case IMAGE_REL_PPC_ADDR16: | |
2131 | case IMAGE_REL_PPC_REL24: | |
2132 | case IMAGE_REL_PPC_ADDR24: | |
2133 | case IMAGE_REL_PPC_ADDR32: | |
2134 | case IMAGE_REL_PPC_IFGLUE: | |
2135 | case IMAGE_REL_PPC_SECTION: | |
2136 | case IMAGE_REL_PPC_SECREL: | |
2137 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2138 | howto = ppc_coff_howto_table + r_type; | |
2139 | break; | |
2140 | case IMAGE_REL_PPC_IMGLUE: | |
2141 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2142 | howto = ppc_coff_howto_table + r_type; | |
2143 | break; | |
2144 | default: | |
43646c9d | 2145 | fprintf(stderr, |
252b5132 RH |
2146 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), |
2147 | ppc_coff_howto_table[r_type].name, | |
2148 | r_type); | |
2149 | howto = ppc_coff_howto_table + r_type; | |
2150 | break; | |
2151 | } | |
43646c9d | 2152 | |
252b5132 RH |
2153 | return howto; |
2154 | } | |
2155 | ||
252b5132 RH |
2156 | /* a cheesy little macro to make the code a little more readable */ |
2157 | #define HOW2MAP(bfd_rtype,ppc_rtype) \ | |
2158 | case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype] | |
2159 | ||
2160 | static reloc_howto_type *ppc_coff_reloc_type_lookup | |
2161 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
2162 | ||
2163 | static reloc_howto_type * | |
2164 | ppc_coff_reloc_type_lookup (abfd, code) | |
5f771d47 | 2165 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2166 | bfd_reloc_code_real_type code; |
2167 | { | |
2168 | switch (code) | |
2169 | { | |
2170 | HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE); | |
2171 | HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE); | |
2172 | HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16); | |
2173 | HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24); | |
2174 | HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24); | |
2175 | HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16); | |
2176 | HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN); | |
2177 | HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32); | |
2178 | HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB); | |
43646c9d | 2179 | default: |
252b5132 RH |
2180 | return NULL; |
2181 | } | |
2182 | /*NOTREACHED*/ | |
2183 | } | |
2184 | ||
2185 | #undef HOW2MAP | |
2186 | ||
2187 | \f | |
43646c9d | 2188 | /* Tailor coffcode.h -- macro heaven. */ |
252b5132 RH |
2189 | |
2190 | #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst) | |
2191 | ||
2192 | #ifndef COFF_IMAGE_WITH_PE | |
2193 | static void ppc_coff_swap_sym_in_hook PARAMS ((bfd *, PTR, PTR)); | |
2194 | #endif | |
2195 | ||
2196 | /* We use the special COFF backend linker, with our own special touch. */ | |
2197 | ||
2198 | #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup | |
2199 | #define coff_rtype_to_howto coff_ppc_rtype_to_howto | |
2200 | #define coff_relocate_section coff_ppc_relocate_section | |
43646c9d | 2201 | #define coff_bfd_final_link ppc_bfd_coff_final_link |
252b5132 RH |
2202 | |
2203 | #ifndef COFF_IMAGE_WITH_PE | |
650f5dd8 | 2204 | /* FIXME: This no longer works. */ |
252b5132 RH |
2205 | #define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook |
2206 | #endif | |
2207 | ||
2208 | #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;} | |
2209 | ||
2210 | #define COFF_PAGE_SIZE 0x1000 | |
2211 | ||
650f5dd8 ILT |
2212 | /* FIXME: This controls some code that used to be in peicode.h and is |
2213 | now in peigen.c. It will not control the code in peigen.c. If | |
2214 | anybody wants to get this working, you will need to fix that. */ | |
252b5132 RH |
2215 | #define POWERPC_LE_PE |
2216 | ||
a50f8417 ILT |
2217 | #define COFF_SECTION_ALIGNMENT_ENTRIES \ |
2218 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \ | |
2219 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ | |
2220 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \ | |
2221 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ | |
2222 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \ | |
2223 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
2224 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \ | |
2225 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
2226 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \ | |
2227 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \ | |
2228 | { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \ | |
2229 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 } | |
2230 | ||
252b5132 RH |
2231 | #include "coffcode.h" |
2232 | ||
2233 | \f | |
2234 | ||
2235 | #ifndef COFF_IMAGE_WITH_PE | |
2236 | /* FIXME: | |
43646c9d | 2237 | What we're trying to do here is allocate a toc section (early), and attach |
252b5132 RH |
2238 | it to the last bfd to be processed. This avoids the problem of having a toc |
2239 | written out before all files have been processed. This code allocates | |
2240 | a toc section for every file, and records the last one seen. There are | |
2241 | at least two problems with this approach: | |
2242 | 1. We allocate whole bunches of toc sections that are ignored, but at | |
2243 | at least we will not allocate a toc if no .toc is present. | |
2244 | 2. It's not clear to me that being the last bfd read necessarily means | |
2245 | that you are the last bfd closed. | |
2246 | 3. Doing it on a "swap in" hook depends on when the "swap in" is called, | |
2247 | and how often, etc. It's not clear to me that there isn't a hole here. | |
2248 | */ | |
2249 | ||
2250 | static void | |
2251 | ppc_coff_swap_sym_in_hook (abfd, ext1, in1) | |
2252 | bfd *abfd; | |
5f771d47 | 2253 | PTR ext1 ATTRIBUTE_UNUSED; |
252b5132 RH |
2254 | PTR in1; |
2255 | { | |
2256 | struct internal_syment *in = (struct internal_syment *)in1; | |
2257 | ||
2258 | if (bfd_of_toc_owner != 0) /* we already have a toc, so go home */ | |
2259 | return; | |
2260 | ||
2261 | if (strcmp(in->_n._n_name, ".toc") == 0) | |
2262 | { | |
2263 | flagword flags; | |
2264 | register asection *s; | |
2265 | ||
2266 | s = bfd_get_section_by_name ( abfd , TOC_SECTION_NAME); | |
43646c9d | 2267 | if (s != NULL) |
252b5132 RH |
2268 | { |
2269 | return; | |
2270 | } | |
2271 | ||
2272 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ; | |
2273 | ||
2274 | s = bfd_make_section (abfd, TOC_SECTION_NAME); | |
2275 | ||
2276 | if (s == NULL | |
2277 | || !bfd_set_section_flags (abfd, s, flags) | |
2278 | || !bfd_set_section_alignment (abfd, s, 2)) | |
2279 | { | |
2280 | /* FIXME: set appropriate bfd error */ | |
2281 | abort(); | |
2282 | } | |
2283 | ||
2284 | /* save the bfd for later allocation */ | |
2285 | bfd_of_toc_owner = abfd; | |
2286 | } | |
2287 | ||
2288 | return; | |
2289 | } | |
2290 | #endif | |
2291 | ||
2292 | #ifndef COFF_IMAGE_WITH_PE | |
2293 | ||
2294 | static boolean ppc_do_last PARAMS ((bfd *)); | |
2295 | static bfd *ppc_get_last PARAMS ((void)); | |
2296 | ||
2297 | static boolean | |
2298 | ppc_do_last (abfd) | |
2299 | bfd *abfd; | |
2300 | { | |
2301 | if (abfd == bfd_of_toc_owner) | |
2302 | return true; | |
2303 | else | |
2304 | return false; | |
2305 | } | |
2306 | ||
2307 | static bfd * | |
2308 | ppc_get_last() | |
2309 | { | |
2310 | return bfd_of_toc_owner; | |
2311 | } | |
2312 | ||
2313 | /* this piece of machinery exists only to guarantee that the bfd that holds | |
43646c9d | 2314 | the toc section is written last. |
252b5132 RH |
2315 | |
2316 | This does depend on bfd_make_section attaching a new section to the | |
43646c9d | 2317 | end of the section list for the bfd. |
252b5132 | 2318 | |
43646c9d KH |
2319 | This is otherwise intended to be functionally the same as |
2320 | cofflink.c:_bfd_coff_final_link(). It is specifically different only | |
2321 | where the POWERPC_LE_PE macro modifies the code. It is left in as a | |
252b5132 RH |
2322 | precise form of comment. krk@cygnus.com |
2323 | */ | |
252b5132 | 2324 | |
252b5132 RH |
2325 | /* Do the final link step. */ |
2326 | ||
2327 | boolean | |
2328 | ppc_bfd_coff_final_link (abfd, info) | |
2329 | bfd *abfd; | |
2330 | struct bfd_link_info *info; | |
2331 | { | |
2332 | bfd_size_type symesz; | |
2333 | struct coff_final_link_info finfo; | |
2334 | boolean debug_merge_allocated; | |
2335 | asection *o; | |
2336 | struct bfd_link_order *p; | |
2337 | size_t max_sym_count; | |
2338 | size_t max_lineno_count; | |
2339 | size_t max_reloc_count; | |
2340 | size_t max_output_reloc_count; | |
2341 | size_t max_contents_size; | |
2342 | file_ptr rel_filepos; | |
2343 | unsigned int relsz; | |
2344 | file_ptr line_filepos; | |
2345 | unsigned int linesz; | |
2346 | bfd *sub; | |
2347 | bfd_byte *external_relocs = NULL; | |
2348 | char strbuf[STRING_SIZE_SIZE]; | |
2349 | ||
2350 | symesz = bfd_coff_symesz (abfd); | |
2351 | ||
2352 | finfo.info = info; | |
2353 | finfo.output_bfd = abfd; | |
2354 | finfo.strtab = NULL; | |
2355 | finfo.section_info = NULL; | |
2356 | finfo.last_file_index = -1; | |
2357 | finfo.last_bf_index = -1; | |
2358 | finfo.internal_syms = NULL; | |
2359 | finfo.sec_ptrs = NULL; | |
2360 | finfo.sym_indices = NULL; | |
2361 | finfo.outsyms = NULL; | |
2362 | finfo.linenos = NULL; | |
2363 | finfo.contents = NULL; | |
2364 | finfo.external_relocs = NULL; | |
2365 | finfo.internal_relocs = NULL; | |
2366 | debug_merge_allocated = false; | |
2367 | ||
2368 | coff_data (abfd)->link_info = info; | |
2369 | ||
2370 | finfo.strtab = _bfd_stringtab_init (); | |
2371 | if (finfo.strtab == NULL) | |
2372 | goto error_return; | |
2373 | ||
2374 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)) | |
2375 | goto error_return; | |
2376 | debug_merge_allocated = true; | |
2377 | ||
2378 | /* Compute the file positions for all the sections. */ | |
2379 | if (! abfd->output_has_begun) | |
2380 | { | |
2381 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
2382 | return false; | |
2383 | } | |
2384 | ||
2385 | /* Count the line numbers and relocation entries required for the | |
2386 | output file. Set the file positions for the relocs. */ | |
2387 | rel_filepos = obj_relocbase (abfd); | |
2388 | relsz = bfd_coff_relsz (abfd); | |
2389 | max_contents_size = 0; | |
2390 | max_lineno_count = 0; | |
2391 | max_reloc_count = 0; | |
2392 | ||
2393 | for (o = abfd->sections; o != NULL; o = o->next) | |
2394 | { | |
2395 | o->reloc_count = 0; | |
2396 | o->lineno_count = 0; | |
2397 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2398 | { | |
2399 | ||
2400 | if (p->type == bfd_indirect_link_order) | |
2401 | { | |
2402 | asection *sec; | |
2403 | ||
2404 | sec = p->u.indirect.section; | |
2405 | ||
2406 | /* Mark all sections which are to be included in the | |
2407 | link. This will normally be every section. We need | |
2408 | to do this so that we can identify any sections which | |
2409 | the linker has decided to not include. */ | |
2410 | sec->linker_mark = true; | |
2411 | ||
2412 | if (info->strip == strip_none | |
2413 | || info->strip == strip_some) | |
2414 | o->lineno_count += sec->lineno_count; | |
2415 | ||
2416 | if (info->relocateable) | |
2417 | o->reloc_count += sec->reloc_count; | |
2418 | ||
2419 | if (sec->_raw_size > max_contents_size) | |
2420 | max_contents_size = sec->_raw_size; | |
2421 | if (sec->lineno_count > max_lineno_count) | |
2422 | max_lineno_count = sec->lineno_count; | |
2423 | if (sec->reloc_count > max_reloc_count) | |
2424 | max_reloc_count = sec->reloc_count; | |
2425 | } | |
2426 | else if (info->relocateable | |
2427 | && (p->type == bfd_section_reloc_link_order | |
2428 | || p->type == bfd_symbol_reloc_link_order)) | |
2429 | ++o->reloc_count; | |
2430 | } | |
2431 | if (o->reloc_count == 0) | |
2432 | o->rel_filepos = 0; | |
2433 | else | |
2434 | { | |
2435 | o->flags |= SEC_RELOC; | |
2436 | o->rel_filepos = rel_filepos; | |
2437 | rel_filepos += o->reloc_count * relsz; | |
2438 | } | |
2439 | } | |
2440 | ||
2441 | /* If doing a relocateable link, allocate space for the pointers we | |
2442 | need to keep. */ | |
2443 | if (info->relocateable) | |
2444 | { | |
2445 | unsigned int i; | |
2446 | ||
2447 | /* We use section_count + 1, rather than section_count, because | |
2448 | the target_index fields are 1 based. */ | |
2449 | finfo.section_info = | |
2450 | ((struct coff_link_section_info *) | |
2451 | bfd_malloc ((abfd->section_count + 1) | |
2452 | * sizeof (struct coff_link_section_info))); | |
2453 | if (finfo.section_info == NULL) | |
2454 | goto error_return; | |
2455 | for (i = 0; i <= abfd->section_count; i++) | |
2456 | { | |
2457 | finfo.section_info[i].relocs = NULL; | |
2458 | finfo.section_info[i].rel_hashes = NULL; | |
2459 | } | |
2460 | } | |
2461 | ||
2462 | /* We now know the size of the relocs, so we can determine the file | |
2463 | positions of the line numbers. */ | |
2464 | line_filepos = rel_filepos; | |
2465 | linesz = bfd_coff_linesz (abfd); | |
2466 | max_output_reloc_count = 0; | |
2467 | for (o = abfd->sections; o != NULL; o = o->next) | |
2468 | { | |
2469 | if (o->lineno_count == 0) | |
2470 | o->line_filepos = 0; | |
2471 | else | |
2472 | { | |
2473 | o->line_filepos = line_filepos; | |
2474 | line_filepos += o->lineno_count * linesz; | |
2475 | } | |
2476 | ||
2477 | if (o->reloc_count != 0) | |
2478 | { | |
2479 | /* We don't know the indices of global symbols until we have | |
2480 | written out all the local symbols. For each section in | |
2481 | the output file, we keep an array of pointers to hash | |
2482 | table entries. Each entry in the array corresponds to a | |
2483 | reloc. When we find a reloc against a global symbol, we | |
2484 | set the corresponding entry in this array so that we can | |
2485 | fix up the symbol index after we have written out all the | |
2486 | local symbols. | |
2487 | ||
2488 | Because of this problem, we also keep the relocs in | |
2489 | memory until the end of the link. This wastes memory, | |
2490 | but only when doing a relocateable link, which is not the | |
2491 | common case. */ | |
2492 | BFD_ASSERT (info->relocateable); | |
2493 | finfo.section_info[o->target_index].relocs = | |
2494 | ((struct internal_reloc *) | |
2495 | bfd_malloc (o->reloc_count * sizeof (struct internal_reloc))); | |
2496 | finfo.section_info[o->target_index].rel_hashes = | |
2497 | ((struct coff_link_hash_entry **) | |
2498 | bfd_malloc (o->reloc_count | |
2499 | * sizeof (struct coff_link_hash_entry *))); | |
2500 | if (finfo.section_info[o->target_index].relocs == NULL | |
2501 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
2502 | goto error_return; | |
2503 | ||
2504 | if (o->reloc_count > max_output_reloc_count) | |
2505 | max_output_reloc_count = o->reloc_count; | |
2506 | } | |
2507 | ||
2508 | /* Reset the reloc and lineno counts, so that we can use them to | |
2509 | count the number of entries we have output so far. */ | |
2510 | o->reloc_count = 0; | |
2511 | o->lineno_count = 0; | |
2512 | } | |
2513 | ||
2514 | obj_sym_filepos (abfd) = line_filepos; | |
2515 | ||
2516 | /* Figure out the largest number of symbols in an input BFD. Take | |
2517 | the opportunity to clear the output_has_begun fields of all the | |
2518 | input BFD's. */ | |
2519 | max_sym_count = 0; | |
2520 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
2521 | { | |
2522 | size_t sz; | |
2523 | ||
2524 | sub->output_has_begun = false; | |
2525 | sz = obj_raw_syment_count (sub); | |
2526 | if (sz > max_sym_count) | |
2527 | max_sym_count = sz; | |
2528 | } | |
2529 | ||
2530 | /* Allocate some buffers used while linking. */ | |
2531 | finfo.internal_syms = ((struct internal_syment *) | |
2532 | bfd_malloc (max_sym_count | |
2533 | * sizeof (struct internal_syment))); | |
2534 | finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count | |
2535 | * sizeof (asection *)); | |
2536 | finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long)); | |
2537 | finfo.outsyms = ((bfd_byte *) | |
2538 | bfd_malloc ((size_t) ((max_sym_count + 1) * symesz))); | |
2539 | finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count | |
2540 | * bfd_coff_linesz (abfd)); | |
2541 | finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); | |
2542 | finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); | |
2543 | if (! info->relocateable) | |
2544 | finfo.internal_relocs = ((struct internal_reloc *) | |
2545 | bfd_malloc (max_reloc_count | |
2546 | * sizeof (struct internal_reloc))); | |
2547 | if ((finfo.internal_syms == NULL && max_sym_count > 0) | |
2548 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) | |
2549 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
2550 | || finfo.outsyms == NULL | |
2551 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
2552 | || (finfo.contents == NULL && max_contents_size > 0) | |
2553 | || (finfo.external_relocs == NULL && max_reloc_count > 0) | |
2554 | || (! info->relocateable | |
2555 | && finfo.internal_relocs == NULL | |
2556 | && max_reloc_count > 0)) | |
2557 | goto error_return; | |
2558 | ||
2559 | /* We now know the position of everything in the file, except that | |
2560 | we don't know the size of the symbol table and therefore we don't | |
2561 | know where the string table starts. We just build the string | |
2562 | table in memory as we go along. We process all the relocations | |
2563 | for a single input file at once. */ | |
2564 | obj_raw_syment_count (abfd) = 0; | |
2565 | ||
2566 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) | |
2567 | { | |
2568 | if (! bfd_coff_start_final_link (abfd, info)) | |
2569 | goto error_return; | |
2570 | } | |
2571 | ||
2572 | for (o = abfd->sections; o != NULL; o = o->next) | |
2573 | { | |
2574 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2575 | { | |
2576 | if (p->type == bfd_indirect_link_order | |
2577 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
2578 | == bfd_target_coff_flavour)) | |
2579 | { | |
2580 | sub = p->u.indirect.section->owner; | |
2581 | #ifdef POWERPC_LE_PE | |
2582 | if (! sub->output_has_begun && !ppc_do_last(sub)) | |
2583 | #else | |
2584 | if (! sub->output_has_begun) | |
2585 | #endif | |
2586 | { | |
2587 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) | |
2588 | goto error_return; | |
2589 | sub->output_has_begun = true; | |
2590 | } | |
2591 | } | |
2592 | else if (p->type == bfd_section_reloc_link_order | |
2593 | || p->type == bfd_symbol_reloc_link_order) | |
2594 | { | |
2595 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) | |
2596 | goto error_return; | |
2597 | } | |
2598 | else | |
2599 | { | |
2600 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
2601 | goto error_return; | |
2602 | } | |
2603 | } | |
2604 | } | |
2605 | ||
2606 | #ifdef POWERPC_LE_PE | |
2607 | { | |
2608 | bfd* last_one = ppc_get_last(); | |
2609 | if (last_one) | |
2610 | { | |
2611 | if (! _bfd_coff_link_input_bfd (&finfo, last_one)) | |
2612 | goto error_return; | |
2613 | } | |
2614 | last_one->output_has_begun = true; | |
2615 | } | |
2616 | #endif | |
2617 | ||
2618 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ | |
2619 | ||
2620 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2621 | debug_merge_allocated = false; | |
2622 | ||
2623 | if (finfo.internal_syms != NULL) | |
2624 | { | |
2625 | free (finfo.internal_syms); | |
2626 | finfo.internal_syms = NULL; | |
2627 | } | |
2628 | if (finfo.sec_ptrs != NULL) | |
2629 | { | |
2630 | free (finfo.sec_ptrs); | |
2631 | finfo.sec_ptrs = NULL; | |
2632 | } | |
2633 | if (finfo.sym_indices != NULL) | |
2634 | { | |
2635 | free (finfo.sym_indices); | |
2636 | finfo.sym_indices = NULL; | |
2637 | } | |
2638 | if (finfo.linenos != NULL) | |
2639 | { | |
2640 | free (finfo.linenos); | |
2641 | finfo.linenos = NULL; | |
2642 | } | |
2643 | if (finfo.contents != NULL) | |
2644 | { | |
2645 | free (finfo.contents); | |
2646 | finfo.contents = NULL; | |
2647 | } | |
2648 | if (finfo.external_relocs != NULL) | |
2649 | { | |
2650 | free (finfo.external_relocs); | |
2651 | finfo.external_relocs = NULL; | |
2652 | } | |
2653 | if (finfo.internal_relocs != NULL) | |
2654 | { | |
2655 | free (finfo.internal_relocs); | |
2656 | finfo.internal_relocs = NULL; | |
2657 | } | |
2658 | ||
2659 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
2660 | index of the first external symbol. Write it out again if | |
2661 | necessary. */ | |
2662 | if (finfo.last_file_index != -1 | |
2663 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)) | |
2664 | { | |
2665 | finfo.last_file.n_value = obj_raw_syment_count (abfd); | |
2666 | bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, | |
2667 | (PTR) finfo.outsyms); | |
2668 | if (bfd_seek (abfd, | |
2669 | (obj_sym_filepos (abfd) | |
2670 | + finfo.last_file_index * symesz), | |
2671 | SEEK_SET) != 0 | |
2672 | || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz) | |
2673 | return false; | |
2674 | } | |
2675 | ||
2676 | /* Write out the global symbols. */ | |
2677 | finfo.failed = false; | |
2678 | coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym, | |
2679 | (PTR) &finfo); | |
2680 | if (finfo.failed) | |
2681 | goto error_return; | |
2682 | ||
2683 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ | |
2684 | if (finfo.outsyms != NULL) | |
2685 | { | |
2686 | free (finfo.outsyms); | |
2687 | finfo.outsyms = NULL; | |
2688 | } | |
2689 | ||
2690 | if (info->relocateable) | |
2691 | { | |
2692 | /* Now that we have written out all the global symbols, we know | |
2693 | the symbol indices to use for relocs against them, and we can | |
2694 | finally write out the relocs. */ | |
2695 | external_relocs = ((bfd_byte *) | |
2696 | bfd_malloc (max_output_reloc_count * relsz)); | |
2697 | if (external_relocs == NULL) | |
2698 | goto error_return; | |
2699 | ||
2700 | for (o = abfd->sections; o != NULL; o = o->next) | |
2701 | { | |
2702 | struct internal_reloc *irel; | |
2703 | struct internal_reloc *irelend; | |
2704 | struct coff_link_hash_entry **rel_hash; | |
2705 | bfd_byte *erel; | |
2706 | ||
2707 | if (o->reloc_count == 0) | |
2708 | continue; | |
2709 | ||
2710 | irel = finfo.section_info[o->target_index].relocs; | |
2711 | irelend = irel + o->reloc_count; | |
2712 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
2713 | erel = external_relocs; | |
2714 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
2715 | { | |
2716 | if (*rel_hash != NULL) | |
2717 | { | |
2718 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
2719 | irel->r_symndx = (*rel_hash)->indx; | |
2720 | } | |
2721 | bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); | |
2722 | } | |
2723 | ||
2724 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
2725 | || bfd_write ((PTR) external_relocs, relsz, o->reloc_count, | |
2726 | abfd) != relsz * o->reloc_count) | |
2727 | goto error_return; | |
2728 | } | |
2729 | ||
2730 | free (external_relocs); | |
2731 | external_relocs = NULL; | |
2732 | } | |
2733 | ||
2734 | /* Free up the section information. */ | |
2735 | if (finfo.section_info != NULL) | |
2736 | { | |
2737 | unsigned int i; | |
2738 | ||
2739 | for (i = 0; i < abfd->section_count; i++) | |
2740 | { | |
2741 | if (finfo.section_info[i].relocs != NULL) | |
2742 | free (finfo.section_info[i].relocs); | |
2743 | if (finfo.section_info[i].rel_hashes != NULL) | |
2744 | free (finfo.section_info[i].rel_hashes); | |
2745 | } | |
2746 | free (finfo.section_info); | |
2747 | finfo.section_info = NULL; | |
2748 | } | |
2749 | ||
2750 | /* If we have optimized stabs strings, output them. */ | |
2751 | if (coff_hash_table (info)->stab_info != NULL) | |
2752 | { | |
2753 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) | |
2754 | return false; | |
2755 | } | |
2756 | ||
2757 | /* Write out the string table. */ | |
2758 | if (obj_raw_syment_count (abfd) != 0) | |
2759 | { | |
2760 | if (bfd_seek (abfd, | |
2761 | (obj_sym_filepos (abfd) | |
2762 | + obj_raw_syment_count (abfd) * symesz), | |
2763 | SEEK_SET) != 0) | |
2764 | return false; | |
2765 | ||
2766 | #if STRING_SIZE_SIZE == 4 | |
2767 | bfd_h_put_32 (abfd, | |
2768 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
2769 | (bfd_byte *) strbuf); | |
2770 | #else | |
2771 | #error Change bfd_h_put_32 | |
2772 | #endif | |
2773 | ||
2774 | if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE) | |
2775 | return false; | |
2776 | ||
2777 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) | |
2778 | return false; | |
2779 | } | |
2780 | ||
2781 | _bfd_stringtab_free (finfo.strtab); | |
2782 | ||
2783 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
2784 | not try to write out the symbols. */ | |
2785 | bfd_get_symcount (abfd) = 0; | |
2786 | ||
2787 | return true; | |
2788 | ||
2789 | error_return: | |
2790 | if (debug_merge_allocated) | |
2791 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2792 | if (finfo.strtab != NULL) | |
2793 | _bfd_stringtab_free (finfo.strtab); | |
2794 | if (finfo.section_info != NULL) | |
2795 | { | |
2796 | unsigned int i; | |
2797 | ||
2798 | for (i = 0; i < abfd->section_count; i++) | |
2799 | { | |
2800 | if (finfo.section_info[i].relocs != NULL) | |
2801 | free (finfo.section_info[i].relocs); | |
2802 | if (finfo.section_info[i].rel_hashes != NULL) | |
2803 | free (finfo.section_info[i].rel_hashes); | |
2804 | } | |
2805 | free (finfo.section_info); | |
2806 | } | |
2807 | if (finfo.internal_syms != NULL) | |
2808 | free (finfo.internal_syms); | |
2809 | if (finfo.sec_ptrs != NULL) | |
2810 | free (finfo.sec_ptrs); | |
2811 | if (finfo.sym_indices != NULL) | |
2812 | free (finfo.sym_indices); | |
2813 | if (finfo.outsyms != NULL) | |
2814 | free (finfo.outsyms); | |
2815 | if (finfo.linenos != NULL) | |
2816 | free (finfo.linenos); | |
2817 | if (finfo.contents != NULL) | |
2818 | free (finfo.contents); | |
2819 | if (finfo.external_relocs != NULL) | |
2820 | free (finfo.external_relocs); | |
2821 | if (finfo.internal_relocs != NULL) | |
2822 | free (finfo.internal_relocs); | |
2823 | if (external_relocs != NULL) | |
2824 | free (external_relocs); | |
2825 | return false; | |
2826 | } | |
2827 | #endif | |
2828 | \f | |
2829 | ||
c3c89269 NC |
2830 | /* Forward declaration for use by alternative_target field. */ |
2831 | #ifdef TARGET_BIG_SYM | |
2832 | extern const bfd_target TARGET_BIG_SYM; | |
2833 | #endif | |
2834 | ||
43646c9d | 2835 | /* The transfer vectors that lead the outside world to all of the above. */ |
252b5132 RH |
2836 | |
2837 | #ifdef TARGET_LITTLE_SYM | |
c3c89269 | 2838 | const bfd_target TARGET_LITTLE_SYM = |
252b5132 RH |
2839 | { |
2840 | TARGET_LITTLE_NAME, /* name or coff-arm-little */ | |
2841 | bfd_target_coff_flavour, | |
2842 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
2843 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
2844 | ||
2845 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2846 | HAS_LINENO | HAS_DEBUG | | |
2847 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
43646c9d | 2848 | |
252b5132 RH |
2849 | #ifndef COFF_WITH_PE |
2850 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2851 | #else | |
2852 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2853 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2854 | #endif | |
2855 | ||
2856 | 0, /* leading char */ | |
2857 | '/', /* ar_pad_char */ | |
2858 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2859 | ||
2860 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2861 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2862 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
2863 | ||
2864 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2865 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2866 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
43646c9d | 2867 | |
252b5132 RH |
2868 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
2869 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2870 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2871 | bfd_false}, | |
2872 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2873 | _bfd_write_archive_contents, bfd_false}, | |
43646c9d | 2874 | |
252b5132 RH |
2875 | BFD_JUMP_TABLE_GENERIC (coff), |
2876 | BFD_JUMP_TABLE_COPY (coff), | |
2877 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2878 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2879 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2880 | BFD_JUMP_TABLE_RELOCS (coff), | |
2881 | BFD_JUMP_TABLE_WRITE (coff), | |
2882 | BFD_JUMP_TABLE_LINK (coff), | |
2883 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
c3c89269 NC |
2884 | |
2885 | /* Alternative_target. */ | |
2886 | #ifdef TARGET_BIG_SYM | |
2887 | & TARGET_BIG_SYM, | |
2888 | #else | |
2889 | NULL, | |
2890 | #endif | |
43646c9d | 2891 | |
c3c89269 | 2892 | COFF_SWAP_TABLE |
252b5132 RH |
2893 | }; |
2894 | #endif | |
2895 | ||
2896 | #ifdef TARGET_BIG_SYM | |
c3c89269 | 2897 | const bfd_target TARGET_BIG_SYM = |
252b5132 RH |
2898 | { |
2899 | TARGET_BIG_NAME, | |
43646c9d | 2900 | bfd_target_coff_flavour, |
252b5132 RH |
2901 | BFD_ENDIAN_BIG, /* data byte order is big */ |
2902 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
2903 | ||
2904 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2905 | HAS_LINENO | HAS_DEBUG | | |
2906 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
2907 | ||
2908 | #ifndef COFF_WITH_PE | |
2909 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2910 | #else | |
2911 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2912 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2913 | #endif | |
2914 | ||
2915 | 0, /* leading char */ | |
2916 | '/', /* ar_pad_char */ | |
2917 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2918 | ||
2919 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
2920 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2921 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
2922 | ||
2923 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
2924 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2925 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
2926 | ||
2927 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
2928 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2929 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2930 | bfd_false}, | |
2931 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2932 | _bfd_write_archive_contents, bfd_false}, | |
2933 | ||
2934 | BFD_JUMP_TABLE_GENERIC (coff), | |
2935 | BFD_JUMP_TABLE_COPY (coff), | |
2936 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2937 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2938 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2939 | BFD_JUMP_TABLE_RELOCS (coff), | |
2940 | BFD_JUMP_TABLE_WRITE (coff), | |
2941 | BFD_JUMP_TABLE_LINK (coff), | |
2942 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
2943 | ||
c3c89269 NC |
2944 | /* Alternative_target. */ |
2945 | #ifdef TARGET_LITTLE_SYM | |
2946 | & TARGET_LITTLE_SYM, | |
2947 | #else | |
2948 | NULL, | |
2949 | #endif | |
43646c9d | 2950 | |
c3c89269 | 2951 | COFF_SWAP_TABLE |
252b5132 RH |
2952 | }; |
2953 | ||
2954 | #endif |