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e7aa05bf KK |
1 | /* BFD back-end for PowerPC Microsoft Portable Executable files. |
2 | Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. | |
3 | ||
4 | Original version pieced together by Kim Knuttila (krk@cygnus.com) | |
5 | ||
6 | There is nothing new under the sun. This file draws a lot on other | |
7 | coff files, in particular, those for the rs/6000, alpha, mips, and | |
8 | intel backends, and the PE work for the arm. | |
9 | ||
10 | This file is part of BFD, the Binary File Descriptor library. | |
11 | ||
12 | This program is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 2 of the License, or | |
15 | (at your option) any later version. | |
16 | ||
17 | This program is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
25 | ||
26 | /* Current State: | |
27 | - objdump works | |
28 | - relocs generated by gas | |
93b6a3f8 KK |
29 | - ld will link files, but they do not run. |
30 | - dlltool will not produce correct output in some .reloc cases, and will | |
31 | not produce the right glue code for dll function calls. | |
e7aa05bf KK |
32 | */ |
33 | ||
34 | ||
35 | #include "bfd.h" | |
36 | #include "sysdep.h" | |
37 | #include "libbfd.h" | |
38 | #include "obstack.h" | |
39 | ||
40 | #include "coff/powerpc.h" | |
41 | #include "coff/internal.h" | |
42 | ||
43 | #include "coff/pe.h" | |
44 | ||
45 | #ifdef BADMAG | |
46 | #undef BADMAG | |
47 | #endif | |
48 | ||
49 | #define BADMAG(x) PPCBADMAG(x) | |
50 | ||
51 | #include "libcoff.h" | |
52 | ||
93b6a3f8 KK |
53 | /* In order not to add an int to every hash table item for every coff |
54 | linker, we define our own hash table, derived from the coff one */ | |
55 | ||
56 | /* PE linker hash table entries. */ | |
57 | ||
58 | struct ppc_coff_link_hash_entry | |
59 | { | |
60 | struct coff_link_hash_entry root; /* First entry, as required */ | |
61 | ||
62 | /* As we wonder around the relocs, we'll keep the assigned toc_offset | |
63 | here */ | |
64 | bfd_vma toc_offset; /* Our addition, as required */ | |
65 | int symbol_is_glue; | |
66 | unsigned long int glue_insn; | |
67 | char eye_catcher[8]; | |
68 | }; | |
69 | ||
70 | /* Need a 7 char string for an eye catcher */ | |
71 | #define EYE "krkjunk" | |
72 | ||
73 | #define CHECK_EYE(addr) \ | |
74 | if (strcmp(addr, EYE) != 0) \ | |
75 | { \ | |
76 | fprintf(stderr,\ | |
77 | "File %s, line %d, Hash check failure, bad eye %8s\n", \ | |
78 | __FILE__, __LINE__, addr); \ | |
79 | abort(); \ | |
80 | } | |
81 | ||
82 | /* PE linker hash table. */ | |
83 | ||
84 | struct ppc_coff_link_hash_table | |
85 | { | |
86 | struct coff_link_hash_table root; /* First entry, as required */ | |
87 | }; | |
88 | ||
89 | static struct bfd_hash_entry *ppc_coff_link_hash_newfunc | |
90 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, | |
91 | const char *)); | |
92 | ||
93 | /* Routine to create an entry in the link hash table. */ | |
94 | ||
95 | static struct bfd_hash_entry * | |
96 | ppc_coff_link_hash_newfunc (entry, table, string) | |
97 | struct bfd_hash_entry *entry; | |
98 | struct bfd_hash_table *table; | |
99 | const char *string; | |
100 | { | |
101 | struct ppc_coff_link_hash_entry *ret = | |
102 | (struct ppc_coff_link_hash_entry *) entry; | |
103 | ||
104 | /* Allocate the structure if it has not already been allocated by a | |
105 | subclass. */ | |
106 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) | |
107 | ret = (struct ppc_coff_link_hash_entry *) | |
108 | bfd_hash_allocate (table, | |
109 | sizeof (struct ppc_coff_link_hash_entry)); | |
110 | ||
111 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) | |
112 | return NULL; | |
113 | ||
114 | /* Call the allocation method of the superclass. */ | |
115 | ret = ((struct ppc_coff_link_hash_entry *) | |
116 | _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
117 | table, string)); | |
118 | ||
119 | if (ret) | |
120 | { | |
121 | /* Initialize the local fields. */ | |
122 | ret->toc_offset = 1; | |
123 | ret->symbol_is_glue = 0; | |
124 | ret->glue_insn = 0; | |
125 | strcpy(ret->eye_catcher, EYE); | |
126 | } | |
127 | ||
128 | return (struct bfd_hash_entry *) ret; | |
129 | } | |
130 | ||
131 | /* Initialize a PE linker hash table. */ | |
132 | ||
133 | static boolean | |
134 | ppc_coff_link_hash_table_init (table, abfd, newfunc) | |
135 | struct ppc_coff_link_hash_table *table; | |
136 | bfd *abfd; | |
137 | struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *, | |
138 | struct bfd_hash_table *, | |
139 | const char *)); | |
140 | { | |
141 | return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc); | |
142 | } | |
143 | ||
144 | /* Create a PE linker hash table. */ | |
145 | ||
146 | static struct bfd_link_hash_table * | |
147 | ppc_coff_link_hash_table_create (abfd) | |
148 | bfd *abfd; | |
149 | { | |
150 | struct ppc_coff_link_hash_table *ret; | |
151 | ||
152 | ret = ((struct ppc_coff_link_hash_table *) | |
153 | bfd_alloc (abfd, sizeof (struct ppc_coff_link_hash_table))); | |
154 | if (ret == NULL) | |
a9713b91 | 155 | return NULL; |
93b6a3f8 KK |
156 | if (! ppc_coff_link_hash_table_init (ret, abfd, |
157 | ppc_coff_link_hash_newfunc)) | |
158 | { | |
159 | bfd_release (abfd, ret); | |
160 | return (struct bfd_link_hash_table *) NULL; | |
161 | } | |
162 | return &ret->root.root; | |
163 | } | |
164 | ||
165 | /* Now, tailor coffcode.h to use our hash stuff */ | |
166 | ||
167 | #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create | |
168 | ||
169 | \f | |
d6f41a7d KK |
170 | /* The nt loader points the toc register to &toc + 32768, in order to */ |
171 | /* use the complete range of a 16-bit displacement (I guess). We have */ | |
172 | /* to adjust for this when we fix up loads displaced off the toc reg. */ | |
173 | #define TOC_LOAD_ADJUSTMENT (-32768) | |
174 | #define TOC_SECTION_NAME ".private.toc" | |
175 | ||
e7aa05bf KK |
176 | /* The main body of code is in coffcode.h. */ |
177 | ||
178 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) | |
179 | ||
180 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
181 | from smaller values. Start with zero, widen, *then* decrement. */ | |
182 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
183 | ||
184 | /* these should definitely go in a header file somewhere... */ | |
185 | ||
186 | /* NOP */ | |
187 | #define IMAGE_REL_PPC_ABSOLUTE 0x0000 | |
188 | ||
189 | /* 64-bit address */ | |
190 | #define IMAGE_REL_PPC_ADDR64 0x0001 | |
191 | ||
192 | /* 32-bit address */ | |
193 | #define IMAGE_REL_PPC_ADDR32 0x0002 | |
194 | ||
195 | /* 26-bit address, shifted left 2 (branch absolute) */ | |
196 | #define IMAGE_REL_PPC_ADDR24 0x0003 | |
197 | ||
198 | /* 16-bit address */ | |
199 | #define IMAGE_REL_PPC_ADDR16 0x0004 | |
200 | ||
201 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
202 | #define IMAGE_REL_PPC_ADDR14 0x0005 | |
203 | ||
204 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
205 | #define IMAGE_REL_PPC_REL24 0x0006 | |
206 | ||
207 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
208 | #define IMAGE_REL_PPC_REL14 0x0007 | |
209 | ||
210 | /* 16-bit offset from TOC base */ | |
211 | #define IMAGE_REL_PPC_TOCREL16 0x0008 | |
212 | ||
213 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
214 | #define IMAGE_REL_PPC_TOCREL14 0x0009 | |
215 | ||
216 | /* 32-bit addr w/o image base */ | |
217 | #define IMAGE_REL_PPC_ADDR32NB 0x000A | |
218 | ||
219 | /* va of containing section (as in an image sectionhdr) */ | |
220 | #define IMAGE_REL_PPC_SECREL 0x000B | |
221 | ||
222 | /* sectionheader number */ | |
223 | #define IMAGE_REL_PPC_SECTION 0x000C | |
224 | ||
225 | /* substitute TOC restore instruction iff symbol is glue code */ | |
226 | #define IMAGE_REL_PPC_IFGLUE 0x000D | |
227 | ||
228 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
229 | #define IMAGE_REL_PPC_IMGLUE 0x000E | |
230 | ||
231 | /* va of containing section (limited to 16 bits) */ | |
232 | #define IMAGE_REL_PPC_SECREL16 0x000F | |
233 | ||
234 | /* stuff to handle immediate data when the number of bits in the */ | |
235 | /* data is greater than the number of bits in the immediate field */ | |
236 | /* We need to do (usually) 32 bit arithmetic on 16 bit chunks */ | |
237 | #define IMAGE_REL_PPC_REFHI 0x0010 | |
238 | #define IMAGE_REL_PPC_REFLO 0x0011 | |
239 | #define IMAGE_REL_PPC_PAIR 0x0012 | |
240 | ||
241 | ||
242 | /* Flag bits in IMAGE_RELOCATION.TYPE */ | |
243 | ||
244 | /* subtract reloc value rather than adding it */ | |
245 | #define IMAGE_REL_PPC_NEG 0x0100 | |
246 | ||
247 | /* fix branch prediction bit to predict branch taken */ | |
248 | #define IMAGE_REL_PPC_BRTAKEN 0x0200 | |
249 | ||
250 | /* fix branch prediction bit to predict branch not taken */ | |
251 | #define IMAGE_REL_PPC_BRNTAKEN 0x0400 | |
252 | ||
253 | /* toc slot defined in file (or, data in toc) */ | |
254 | #define IMAGE_REL_PPC_TOCDEFN 0x0800 | |
255 | ||
256 | /* masks to isolate above values in IMAGE_RELOCATION.Type */ | |
257 | #define IMAGE_REL_PPC_TYPEMASK 0x00FF | |
258 | #define IMAGE_REL_PPC_FLAGMASK 0x0F00 | |
259 | ||
260 | #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK) | |
261 | #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK) | |
262 | #define EXTRACT_JUNK(x) \ | |
263 | ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK)) | |
264 | ||
265 | \f | |
266 | /* static helper functions to make relocation work */ | |
267 | /* (Work In Progress) */ | |
268 | ||
269 | static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd, | |
270 | arelent *reloc, | |
271 | asymbol *symbol, | |
272 | PTR data, | |
273 | asection *section, | |
274 | bfd *output_bfd, | |
275 | char **error)); | |
276 | static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd, | |
277 | arelent *reloc, | |
278 | asymbol *symbol, | |
279 | PTR data, | |
280 | asection *section, | |
281 | bfd *output_bfd, | |
282 | char **error)); | |
283 | static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd, | |
284 | arelent *reloc, | |
285 | asymbol *symbol, | |
286 | PTR data, | |
287 | asection *section, | |
288 | bfd *output_bfd, | |
289 | char **error)); | |
290 | ||
291 | \f | |
292 | static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd, | |
293 | arelent *reloc, | |
294 | asymbol *symbol, | |
295 | PTR data, | |
296 | asection *section, | |
297 | bfd *output_bfd, | |
298 | char **error)); | |
299 | ||
300 | static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd, | |
301 | arelent *reloc, | |
302 | asymbol *symbol, | |
303 | PTR data, | |
304 | asection *section, | |
305 | bfd *output_bfd, | |
306 | char **error)); | |
307 | ||
308 | static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd, | |
309 | arelent *reloc, | |
310 | asymbol *symbol, | |
311 | PTR data, | |
312 | asection *section, | |
313 | bfd *output_bfd, | |
314 | char **error)); | |
315 | ||
316 | static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd, | |
317 | arelent *reloc, | |
318 | asymbol *symbol, | |
319 | PTR data, | |
320 | asection *section, | |
321 | bfd *output_bfd, | |
322 | char **error)); | |
323 | ||
324 | static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd, | |
325 | arelent *reloc, | |
326 | asymbol *symbol, | |
327 | PTR data, | |
328 | asection *section, | |
329 | bfd *output_bfd, | |
330 | char **error)); | |
331 | ||
332 | ||
333 | ||
d6f41a7d | 334 | static boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto)); |
e7aa05bf KK |
335 | |
336 | \f | |
337 | /* FIXME: It'll take a while to get through all of these. I only need a few to | |
338 | get us started, so those I'll make sure work. Those marked FIXME are either | |
339 | completely unverified or have a specific unknown marked in the comment */ | |
340 | ||
341 | /*---------------------------------------------------------------------------*/ | |
342 | /* */ | |
343 | /* Relocation entries for Windows/NT on PowerPC. */ | |
344 | /* */ | |
345 | /* From the document "" we find the following listed as used relocs: */ | |
346 | /* */ | |
347 | /* ABSOLUTE : The noop */ | |
348 | /* ADDR[64|32|16] : fields that hold addresses in data fields or the */ | |
349 | /* 16 bit displacement field on a load/store. */ | |
350 | /* ADDR[24|14] : fields that hold addresses in branch and cond */ | |
351 | /* branches. These represent [26|16] bit addresses. */ | |
352 | /* The low order 2 bits are preserved. */ | |
353 | /* REL[24|14] : branches relative to the Instruction Address */ | |
354 | /* register. These represent [26|16] bit addresses, */ | |
355 | /* as before. The instruction field will be zero, and */ | |
356 | /* the address of the SYM will be inserted at link time. */ | |
357 | /* TOCREL16 : 16 bit displacement field referring to a slot in */ | |
358 | /* toc. */ | |
359 | /* TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. */ | |
360 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ | |
361 | /* (On the alpha, this is always a linker generated thunk)*/ | |
362 | /* (i.e. 32bit addr relative to the image base) */ | |
363 | /* SECREL : The value is relative to the start of the section */ | |
364 | /* containing the symbol. */ | |
365 | /* SECTION : access to the header containing the item. Supports the */ | |
366 | /* codeview debugger. */ | |
367 | /* */ | |
368 | /* In particular, note that the document does not indicate that the */ | |
369 | /* relocations listed in the header file are used. */ | |
370 | /* */ | |
371 | /* */ | |
372 | /* */ | |
373 | /*---------------------------------------------------------------------------*/ | |
374 | ||
375 | static reloc_howto_type ppc_coff_howto_table[] = | |
376 | { | |
377 | /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */ | |
378 | /* Unused: */ | |
379 | HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
382 | 0, /* bitsize */ | |
383 | false, /* pc_relative */ | |
384 | 0, /* bitpos */ | |
385 | complain_overflow_dont, /* dont complain_on_overflow */ | |
386 | 0, /* special_function */ | |
387 | "ABSOLUTE", /* name */ | |
388 | false, /* partial_inplace */ | |
389 | 0x00, /* src_mask */ | |
390 | 0x00, /* dst_mask */ | |
391 | false), /* pcrel_offset */ | |
d6f41a7d | 392 | |
e7aa05bf KK |
393 | /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */ |
394 | /* Unused: */ | |
395 | HOWTO(IMAGE_REL_PPC_ADDR64, /* type */ | |
d6f41a7d KK |
396 | 0, /* rightshift */ |
397 | 3, /* size (0 = byte, 1 = short, 2 = long) */ | |
398 | 64, /* bitsize */ | |
399 | false, /* pc_relative */ | |
400 | 0, /* bitpos */ | |
401 | complain_overflow_bitfield, /* complain_on_overflow */ | |
402 | 0, /* special_function */ | |
403 | "ADDR64", /* name */ | |
404 | true, /* partial_inplace */ | |
405 | MINUS_ONE, /* src_mask */ | |
406 | MINUS_ONE, /* dst_mask */ | |
407 | false), /* pcrel_offset */ | |
e7aa05bf KK |
408 | |
409 | /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */ | |
410 | /* Used: */ | |
411 | HOWTO (IMAGE_REL_PPC_ADDR32, /* type */ | |
412 | 0, /* rightshift */ | |
413 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
414 | 32, /* bitsize */ | |
415 | false, /* pc_relative */ | |
416 | 0, /* bitpos */ | |
417 | complain_overflow_bitfield, /* complain_on_overflow */ | |
418 | 0, /* special_function */ | |
419 | "ADDR32", /* name */ | |
420 | true, /* partial_inplace */ | |
421 | 0xffffffff, /* src_mask */ | |
422 | 0xffffffff, /* dst_mask */ | |
423 | false), /* pcrel_offset */ | |
d6f41a7d | 424 | |
e7aa05bf KK |
425 | /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */ |
426 | /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */ | |
d6f41a7d | 427 | /* Of course, That's the IBM approved bit numbering, which is not what */ |
e7aa05bf KK |
428 | /* anyone else uses.... The li field is in bit 2 thru 25 */ |
429 | /* Used: */ | |
430 | HOWTO (IMAGE_REL_PPC_ADDR24, /* type */ | |
431 | 0, /* rightshift */ | |
432 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
433 | 26, /* bitsize */ | |
434 | false, /* pc_relative */ | |
435 | 0, /* bitpos */ | |
436 | complain_overflow_bitfield, /* complain_on_overflow */ | |
437 | 0, /* special_function */ | |
438 | "ADDR24", /* name */ | |
439 | true, /* partial_inplace */ | |
440 | 0x07fffffc, /* src_mask */ | |
441 | 0x07fffffc, /* dst_mask */ | |
442 | false), /* pcrel_offset */ | |
d6f41a7d | 443 | |
e7aa05bf KK |
444 | /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */ |
445 | /* Used: */ | |
446 | HOWTO (IMAGE_REL_PPC_ADDR16, /* type */ | |
447 | 0, /* rightshift */ | |
448 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
449 | 16, /* bitsize */ | |
450 | false, /* pc_relative */ | |
451 | 0, /* bitpos */ | |
452 | complain_overflow_signed, /* complain_on_overflow */ | |
453 | 0, /* special_function */ | |
454 | "ADDR16", /* name */ | |
455 | true, /* partial_inplace */ | |
456 | 0xffff, /* src_mask */ | |
457 | 0xffff, /* dst_mask */ | |
458 | false), /* pcrel_offset */ | |
d6f41a7d | 459 | |
e7aa05bf KK |
460 | /* IMAGE_REL_PPC_ADDR14 0x0005 */ |
461 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
462 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
463 | /* Unused: */ | |
464 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ | |
465 | 1, /* rightshift */ | |
466 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
467 | 16, /* bitsize */ | |
468 | false, /* pc_relative */ | |
469 | 0, /* bitpos */ | |
470 | complain_overflow_signed, /* complain_on_overflow */ | |
471 | 0, /* special_function */ | |
472 | "ADDR16", /* name */ | |
473 | true, /* partial_inplace */ | |
474 | 0xffff, /* src_mask */ | |
475 | 0xffff, /* dst_mask */ | |
476 | false), /* pcrel_offset */ | |
d6f41a7d | 477 | |
e7aa05bf KK |
478 | /* IMAGE_REL_PPC_REL24 0x0006 */ |
479 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
480 | /* Used: */ | |
481 | HOWTO (IMAGE_REL_PPC_REL24, /* type */ | |
482 | 0, /* rightshift */ | |
483 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
484 | 26, /* bitsize */ | |
485 | true, /* pc_relative */ | |
486 | 0, /* bitpos */ | |
487 | complain_overflow_signed, /* complain_on_overflow */ | |
488 | 0, /* special_function */ | |
489 | "REL24", /* name */ | |
490 | true, /* partial_inplace */ | |
491 | 0x3fffffc, /* src_mask */ | |
492 | 0x3fffffc, /* dst_mask */ | |
493 | false), /* pcrel_offset */ | |
d6f41a7d | 494 | |
e7aa05bf KK |
495 | /* IMAGE_REL_PPC_REL14 0x0007 */ |
496 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
497 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
498 | /* FIXME: how does it know how far to shift? */ | |
499 | /* Unused: */ | |
500 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ | |
501 | 1, /* rightshift */ | |
502 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
503 | 16, /* bitsize */ | |
504 | false, /* pc_relative */ | |
505 | 0, /* bitpos */ | |
506 | complain_overflow_signed, /* complain_on_overflow */ | |
507 | 0, /* special_function */ | |
508 | "ADDR16", /* name */ | |
509 | true, /* partial_inplace */ | |
510 | 0xffff, /* src_mask */ | |
511 | 0xffff, /* dst_mask */ | |
512 | true), /* pcrel_offset */ | |
d6f41a7d | 513 | |
e7aa05bf KK |
514 | /* IMAGE_REL_PPC_TOCREL16 0x0008 */ |
515 | /* 16-bit offset from TOC base */ | |
516 | /* Used: */ | |
517 | HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */ | |
518 | 0, /* rightshift */ | |
519 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
520 | 16, /* bitsize */ | |
521 | false, /* pc_relative */ | |
522 | 0, /* bitpos */ | |
523 | complain_overflow_dont, /* complain_on_overflow */ | |
524 | ppc_toc16_reloc, /* special_function */ | |
525 | "TOCREL16", /* name */ | |
526 | false, /* partial_inplace */ | |
527 | 0xffff, /* src_mask */ | |
528 | 0xffff, /* dst_mask */ | |
529 | false), /* pcrel_offset */ | |
d6f41a7d | 530 | |
e7aa05bf KK |
531 | /* IMAGE_REL_PPC_TOCREL14 0x0009 */ |
532 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
533 | /* Unused: */ | |
534 | HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */ | |
535 | 1, /* rightshift */ | |
536 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
537 | 16, /* bitsize */ | |
538 | false, /* pc_relative */ | |
539 | 0, /* bitpos */ | |
540 | complain_overflow_signed, /* complain_on_overflow */ | |
541 | 0, /* special_function */ | |
542 | "TOCREL14", /* name */ | |
543 | false, /* partial_inplace */ | |
544 | 0xffff, /* src_mask */ | |
545 | 0xffff, /* dst_mask */ | |
d6f41a7d KK |
546 | false), /* pcrel_offset */ |
547 | ||
e7aa05bf KK |
548 | /* IMAGE_REL_PPC_ADDR32NB 0x000A */ |
549 | /* 32-bit addr w/ image base */ | |
550 | /* Unused: */ | |
551 | HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */ | |
552 | 0, /* rightshift */ | |
553 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
554 | 32, /* bitsize */ | |
555 | false, /* pc_relative */ | |
556 | 0, /* bitpos */ | |
557 | complain_overflow_signed, /* complain_on_overflow */ | |
d6f41a7d | 558 | 0, /* special_function */ |
e7aa05bf KK |
559 | "ADDR32NB", /* name */ |
560 | true, /* partial_inplace */ | |
561 | 0xffffffff, /* src_mask */ | |
562 | 0xffffffff, /* dst_mask */ | |
d6f41a7d KK |
563 | false), /* pcrel_offset */ |
564 | ||
e7aa05bf KK |
565 | /* IMAGE_REL_PPC_SECREL 0x000B */ |
566 | /* va of containing section (as in an image sectionhdr) */ | |
567 | /* Unused: */ | |
568 | HOWTO (IMAGE_REL_PPC_SECREL,/* type */ | |
569 | 0, /* rightshift */ | |
570 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
571 | 32, /* bitsize */ | |
572 | false, /* pc_relative */ | |
573 | 0, /* bitpos */ | |
574 | complain_overflow_signed, /* complain_on_overflow */ | |
575 | ppc_secrel_reloc, /* special_function */ | |
576 | "SECREL", /* name */ | |
577 | true, /* partial_inplace */ | |
578 | 0xffffffff, /* src_mask */ | |
579 | 0xffffffff, /* dst_mask */ | |
580 | true), /* pcrel_offset */ | |
581 | ||
582 | /* IMAGE_REL_PPC_SECTION 0x000C */ | |
583 | /* sectionheader number */ | |
584 | /* Unused: */ | |
585 | HOWTO (IMAGE_REL_PPC_SECTION,/* type */ | |
586 | 0, /* rightshift */ | |
587 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
588 | 32, /* bitsize */ | |
589 | false, /* pc_relative */ | |
590 | 0, /* bitpos */ | |
591 | complain_overflow_signed, /* complain_on_overflow */ | |
592 | ppc_section_reloc, /* special_function */ | |
593 | "SECTION", /* name */ | |
594 | true, /* partial_inplace */ | |
595 | 0xffffffff, /* src_mask */ | |
596 | 0xffffffff, /* dst_mask */ | |
597 | true), /* pcrel_offset */ | |
598 | ||
599 | /* IMAGE_REL_PPC_IFGLUE 0x000D */ | |
600 | /* substitute TOC restore instruction iff symbol is glue code */ | |
601 | /* Used: */ | |
602 | HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */ | |
603 | 0, /* rightshift */ | |
604 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
605 | 32, /* bitsize */ | |
606 | false, /* pc_relative */ | |
607 | 0, /* bitpos */ | |
608 | complain_overflow_signed, /* complain_on_overflow */ | |
609 | 0, /* special_function */ | |
610 | "IFGLUE", /* name */ | |
611 | true, /* partial_inplace */ | |
612 | 0xffffffff, /* src_mask */ | |
613 | 0xffffffff, /* dst_mask */ | |
d6f41a7d | 614 | false), /* pcrel_offset */ |
e7aa05bf KK |
615 | |
616 | /* IMAGE_REL_PPC_IMGLUE 0x000E */ | |
617 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
618 | /* Unused: */ | |
619 | HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */ | |
620 | 0, /* rightshift */ | |
621 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
622 | 32, /* bitsize */ | |
623 | false, /* pc_relative */ | |
624 | 0, /* bitpos */ | |
625 | complain_overflow_dont, /* complain_on_overflow */ | |
626 | ppc_imglue_reloc, /* special_function */ | |
627 | "IMGLUE", /* name */ | |
628 | false, /* partial_inplace */ | |
629 | 0xffffffff, /* src_mask */ | |
630 | 0xffffffff, /* dst_mask */ | |
631 | false), /* pcrel_offset */ | |
632 | ||
633 | /* IMAGE_REL_PPC_SECREL16 0x000F */ | |
634 | /* va of containing section (limited to 16 bits) */ | |
635 | /* Unused: */ | |
636 | HOWTO (IMAGE_REL_PPC_SECREL16,/* type */ | |
637 | 0, /* rightshift */ | |
638 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
639 | 16, /* bitsize */ | |
640 | false, /* pc_relative */ | |
641 | 0, /* bitpos */ | |
642 | complain_overflow_signed, /* complain_on_overflow */ | |
643 | 0, /* special_function */ | |
644 | "SECREL16", /* name */ | |
645 | true, /* partial_inplace */ | |
646 | 0xffff, /* src_mask */ | |
647 | 0xffff, /* dst_mask */ | |
648 | true), /* pcrel_offset */ | |
649 | ||
650 | /* IMAGE_REL_PPC_REFHI 0x0010 */ | |
651 | /* Unused: */ | |
652 | HOWTO (IMAGE_REL_PPC_REFHI, /* type */ | |
653 | 0, /* rightshift */ | |
654 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
655 | 16, /* bitsize */ | |
656 | false, /* pc_relative */ | |
657 | 0, /* bitpos */ | |
658 | complain_overflow_signed, /* complain_on_overflow */ | |
659 | ppc_refhi_reloc, /* special_function */ | |
660 | "REFHI", /* name */ | |
661 | true, /* partial_inplace */ | |
662 | 0xffffffff, /* src_mask */ | |
663 | 0xffffffff, /* dst_mask */ | |
664 | false), /* pcrel_offset */ | |
665 | ||
666 | /* IMAGE_REL_PPC_REFLO 0x0011 */ | |
667 | /* Unused: */ | |
668 | HOWTO (IMAGE_REL_PPC_REFLO, /* type */ | |
669 | 0, /* rightshift */ | |
670 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
671 | 16, /* bitsize */ | |
672 | false, /* pc_relative */ | |
673 | 0, /* bitpos */ | |
674 | complain_overflow_signed, /* complain_on_overflow */ | |
675 | ppc_refhi_reloc, /* special_function */ | |
676 | "REFLO", /* name */ | |
677 | true, /* partial_inplace */ | |
678 | 0xffffffff, /* src_mask */ | |
679 | 0xffffffff, /* dst_mask */ | |
680 | false), /* pcrel_offset */ | |
681 | ||
682 | /* IMAGE_REL_PPC_PAIR 0x0012 */ | |
683 | /* Unused: */ | |
684 | HOWTO (IMAGE_REL_PPC_PAIR, /* type */ | |
685 | 0, /* rightshift */ | |
686 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
687 | 16, /* bitsize */ | |
688 | false, /* pc_relative */ | |
689 | 0, /* bitpos */ | |
690 | complain_overflow_signed, /* complain_on_overflow */ | |
691 | ppc_pair_reloc, /* special_function */ | |
692 | "PAIR", /* name */ | |
693 | true, /* partial_inplace */ | |
694 | 0xffffffff, /* src_mask */ | |
695 | 0xffffffff, /* dst_mask */ | |
696 | false) /* pcrel_offset */ | |
697 | }; | |
698 | ||
699 | ||
d6f41a7d KK |
700 | \f |
701 | ||
702 | /* Some really cheezy macros that can be turned on to test stderr :-) */ | |
703 | ||
d6f41a7d KK |
704 | #ifdef DEBUG_RELOC |
705 | #define UN_IMPL(x) \ | |
706 | { \ | |
707 | static int i; \ | |
708 | if (i == 0) \ | |
709 | { \ | |
710 | i = 1; \ | |
711 | fprintf(stderr,"Unimplemented Relocation -- %s\n",x); \ | |
712 | } \ | |
713 | } | |
714 | ||
715 | #define DUMP_RELOC(n,r) \ | |
716 | { \ | |
717 | fprintf(stderr,"%s sym %d, addr %d, addend %d\n", \ | |
718 | n, (*(r->sym_ptr_ptr))->name, \ | |
719 | r->address, r->addend); \ | |
720 | } | |
721 | ||
722 | /* Given a reloc name, n, and a pointer to an internal_reloc, | |
723 | dump out interesting information on the contents | |
724 | ||
725 | #define n_name _n._n_name | |
726 | #define n_zeroes _n._n_n._n_zeroes | |
727 | #define n_offset _n._n_n._n_offset | |
728 | ||
729 | */ | |
730 | ||
731 | #define DUMP_RELOC2(n,r) \ | |
732 | { \ | |
cd2b2402 KK |
733 | fprintf(stderr,"%s sym %d, r_vaddr %d %s\n", \ |
734 | n, r->r_symndx, r->r_vaddr,\ | |
735 | (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \ | |
736 | ?" ":" TOCDEFN" ); \ | |
d6f41a7d KK |
737 | } |
738 | ||
739 | #else | |
740 | #define UN_IMPL(x) | |
741 | #define DUMP_RELOC(n,r) | |
742 | #define DUMP_RELOC2(n,r) | |
743 | #endif | |
744 | ||
745 | ||
746 | \f | |
747 | /* toc construction and management routines */ | |
748 | extern bfd* bfd_of_toc_owner; | |
749 | extern long int global_toc_size; | |
750 | ||
751 | extern long int import_table_size; | |
752 | extern long int first_thunk_address; | |
753 | extern long int thunk_size; | |
754 | ||
755 | enum toc_type | |
756 | { | |
757 | default_toc, | |
758 | toc_32, | |
759 | toc_64 | |
760 | }; | |
761 | ||
a9713b91 ILT |
762 | enum ref_category |
763 | { | |
764 | priv, | |
765 | pub, | |
766 | data | |
767 | }; | |
768 | ||
93b6a3f8 KK |
769 | struct list_ele |
770 | { | |
771 | struct list_ele *next; | |
772 | bfd_vma addr; | |
a9713b91 | 773 | enum ref_category cat; |
93b6a3f8 KK |
774 | int offset; |
775 | const char *name; | |
776 | }; | |
777 | ||
778 | extern struct list_ele *head; | |
779 | extern struct list_ele *tail; | |
780 | ||
781 | static void | |
a9713b91 | 782 | record_toc(toc_section, our_toc_offset, cat, name) |
93b6a3f8 KK |
783 | asection *toc_section; |
784 | int our_toc_offset; | |
a9713b91 | 785 | enum ref_category cat; |
93b6a3f8 KK |
786 | const char *name; |
787 | { | |
788 | /* add this entry to our toc addr-offset-name list */ | |
789 | struct list_ele *t; | |
790 | t = malloc(sizeof(struct list_ele)); | |
791 | t->next = 0; | |
792 | t->offset = our_toc_offset; | |
793 | t->name = name; | |
a9713b91 | 794 | t->cat = cat; |
93b6a3f8 KK |
795 | t->addr = toc_section->output_offset + our_toc_offset; |
796 | ||
797 | if (head == 0) | |
798 | { | |
799 | head = t; | |
800 | tail = t; | |
801 | } | |
802 | else | |
803 | { | |
804 | tail->next = t; | |
805 | tail = t; | |
806 | } | |
807 | } | |
808 | ||
d6f41a7d KK |
809 | /* record a toc offset against a symbol */ |
810 | static int | |
811 | ppc_record_toc_entry(abfd, info, sec, sym, toc_kind) | |
812 | bfd *abfd; | |
813 | struct bfd_link_info *info; | |
814 | asection *sec; | |
815 | int sym; | |
816 | enum toc_type toc_kind; | |
817 | { | |
818 | bfd_byte *t; | |
819 | bfd_byte *old_contents; | |
820 | asection *s; | |
821 | int element_size; | |
822 | int data; | |
823 | int offset; | |
93b6a3f8 | 824 | struct ppc_coff_link_hash_entry *h; |
d6f41a7d KK |
825 | struct coff_symbol_struct *target; |
826 | int ret_val; | |
827 | const char *name; | |
828 | ||
829 | int *local_syms; | |
830 | ||
831 | h = 0; | |
832 | ||
93b6a3f8 KK |
833 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); |
834 | if (h != 0) | |
835 | { | |
836 | CHECK_EYE(h->eye_catcher); | |
837 | } | |
d6f41a7d KK |
838 | |
839 | if (h == 0) | |
840 | { | |
841 | local_syms = obj_coff_local_toc_table(abfd); | |
842 | if (local_syms == 0) | |
843 | { | |
844 | int i; | |
845 | /* allocate a table */ | |
846 | local_syms = | |
847 | (int *) bfd_zalloc (abfd, | |
848 | obj_raw_syment_count(abfd) * sizeof(int)); | |
849 | if (local_syms == 0) | |
a9713b91 | 850 | return false; |
d6f41a7d KK |
851 | obj_coff_local_toc_table(abfd) = local_syms; |
852 | for (i = 0; i < obj_raw_syment_count(abfd); ++i) | |
853 | local_syms[i] = 1; | |
854 | } | |
855 | ||
856 | if (local_syms[sym] == 1) | |
857 | { | |
858 | local_syms[sym] = global_toc_size; | |
859 | ret_val = global_toc_size; | |
860 | global_toc_size += 4; | |
a9713b91 ILT |
861 | |
862 | /* The size must fit in a 16bit displacment */ | |
863 | if (global_toc_size >= 65535) | |
864 | { | |
865 | fprintf(stderr, | |
866 | "Exceeded toc size of 65535\n"); | |
867 | abort(); | |
868 | } | |
869 | ||
d6f41a7d KK |
870 | #ifdef TOC_DEBUG |
871 | fprintf(stderr, | |
872 | "Setting toc_offset for local sym %d to %d\n", | |
873 | sym, ret_val); | |
874 | #endif | |
875 | } | |
876 | else | |
877 | { | |
878 | ret_val = local_syms[sym]; | |
879 | #ifdef TOC_DEBUG | |
880 | fprintf(stderr, | |
881 | "toc_offset already set for local sym %d to %d\n", | |
882 | sym, ret_val); | |
883 | #endif | |
884 | } | |
885 | } | |
886 | else | |
887 | { | |
93b6a3f8 | 888 | name = h->root.root.root.string; |
d6f41a7d KK |
889 | |
890 | /* check to see if there's a toc slot allocated. If not, do it | |
891 | here. It will be used in relocate_section */ | |
892 | if (h->toc_offset == 1) | |
893 | { | |
894 | h->toc_offset = global_toc_size; | |
895 | ret_val = global_toc_size; | |
896 | global_toc_size += 4; | |
a9713b91 ILT |
897 | |
898 | /* The size must fit in a 16bit displacment */ | |
899 | if (global_toc_size >= 65535) | |
900 | { | |
901 | fprintf(stderr, | |
902 | "Exceeded toc size of 65535\n"); | |
903 | abort(); | |
904 | } | |
905 | ||
d6f41a7d KK |
906 | #ifdef TOC_DEBUG |
907 | fprintf(stderr, | |
908 | "Setting toc_offset for sym %d (%s) [h=%p] to %d\n", | |
909 | sym, name, h, ret_val); | |
910 | #endif | |
911 | } | |
912 | else | |
913 | { | |
914 | ret_val = h->toc_offset; | |
915 | #ifdef TOC_DEBUG | |
916 | fprintf(stderr, | |
917 | "toc_offset already set for sym %d (%s) [h=%p] to %d\n", | |
918 | sym, name, h, ret_val); | |
919 | #endif | |
920 | } | |
921 | } | |
922 | ||
923 | return ret_val; | |
924 | } | |
cd2b2402 KK |
925 | /* FIXME: record a toc offset against a data-in-toc symbol */ |
926 | /* Now, there is currenly some confusion on what this means. In some | |
927 | compilers one sees the moral equivalent of: | |
928 | .tocd | |
929 | define some data | |
930 | .text | |
931 | refer to the data with a [tocv] qualifier | |
932 | In general, one sees something to indicate that a tocd has been | |
933 | seen, and that would trigger the allocation of data in toc. The IBM | |
934 | docs seem to suggest that anything with the TOCDEFN qualifier should | |
935 | never trigger storage allocation. However, in the kernel32.lib that | |
936 | we've been using for our test bed, there are a couple of variables | |
937 | referenced that fail that test. | |
938 | ||
939 | So it can't work that way. | |
940 | */ | |
941 | static int | |
942 | ppc_record_data_in_toc_entry(abfd, info, sec, sym, toc_kind) | |
943 | bfd *abfd; | |
944 | struct bfd_link_info *info; | |
945 | asection *sec; | |
946 | int sym; | |
947 | enum toc_type toc_kind; | |
948 | { | |
949 | bfd_byte *t; | |
950 | bfd_byte *old_contents; | |
951 | asection *s; | |
952 | int element_size; | |
953 | int data; | |
954 | int offset; | |
955 | struct ppc_coff_link_hash_entry *h = 0; | |
956 | struct coff_symbol_struct *target; | |
957 | int ret_val; | |
958 | const char *name; | |
959 | ||
960 | int *local_syms; | |
961 | ||
962 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
963 | ||
964 | if (h == 0) | |
965 | { | |
966 | local_syms = obj_coff_local_toc_table(abfd); | |
967 | if (local_syms == 0) | |
968 | { | |
969 | int i; | |
970 | /* allocate a table */ | |
971 | local_syms = | |
972 | (int *) bfd_zalloc (abfd, | |
973 | obj_raw_syment_count(abfd) * sizeof(int)); | |
974 | if (local_syms == 0) | |
a9713b91 | 975 | return false; |
cd2b2402 KK |
976 | obj_coff_local_toc_table(abfd) = local_syms; |
977 | for (i = 0; i < obj_raw_syment_count(abfd); ++i) | |
978 | local_syms[i] = 1; | |
979 | } | |
980 | ||
981 | if (local_syms[sym] == 1) | |
982 | { | |
983 | local_syms[sym] = global_toc_size; | |
984 | ret_val = global_toc_size; | |
985 | global_toc_size += 4; | |
986 | #ifdef TOC_DEBUG | |
987 | fprintf(stderr, | |
988 | "Setting data_in_toc_offset for local sym %d to %d\n", | |
989 | sym, ret_val); | |
990 | #endif | |
991 | } | |
992 | else | |
993 | { | |
994 | ret_val = local_syms[sym]; | |
995 | #ifdef TOC_DEBUG | |
996 | fprintf(stderr, | |
997 | "data_in_toc_offset already set for local sym %d to %d\n", | |
998 | sym, ret_val); | |
999 | #endif | |
1000 | } | |
1001 | } | |
1002 | else | |
1003 | { | |
1004 | CHECK_EYE(h->eye_catcher); | |
1005 | ||
1006 | name = h->root.root.root.string; | |
1007 | ||
1008 | /* check to see if there's a toc slot allocated. If not, do it | |
1009 | here. It will be used in relocate_section */ | |
1010 | if (h->toc_offset == 1) | |
1011 | { | |
1012 | #if 0 | |
1013 | h->toc_offset = global_toc_size; | |
1014 | #endif | |
1015 | ret_val = global_toc_size; | |
1016 | /* We're allocating a chunk of the toc, as opposed to a slot */ | |
1017 | /* FIXME: alignment? */ | |
1018 | ||
1019 | global_toc_size += 4; | |
1020 | #ifdef TOC_DEBUG | |
1021 | fprintf(stderr, | |
1022 | "Setting data_in_toc_offset for sym %d (%s) [h=%p] to %d\n", | |
1023 | sym, name, h, ret_val); | |
1024 | #endif | |
1025 | } | |
1026 | else | |
1027 | { | |
1028 | ret_val = h->toc_offset; | |
1029 | #ifdef TOC_DEBUG | |
1030 | fprintf(stderr, | |
1031 | "data_in_toc_offset already set for sym %d (%s) [h=%p] to %d\n", | |
1032 | sym, name, h, ret_val); | |
1033 | #endif | |
1034 | } | |
1035 | } | |
1036 | ||
1037 | return ret_val; | |
1038 | } | |
d6f41a7d | 1039 | |
93b6a3f8 KK |
1040 | /* record a toc offset against a symbol */ |
1041 | static void | |
1042 | ppc_mark_symbol_as_glue(abfd, sym, rel) | |
1043 | bfd *abfd; | |
1044 | int sym; | |
1045 | struct internal_reloc *rel; | |
1046 | { | |
1047 | struct ppc_coff_link_hash_entry *h; | |
1048 | ||
1049 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
1050 | ||
1051 | CHECK_EYE(h->eye_catcher); | |
1052 | ||
1053 | h->symbol_is_glue = 1; | |
1054 | h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr); | |
1055 | ||
1056 | return; | |
1057 | } | |
1058 | ||
d6f41a7d | 1059 | \f |
e7aa05bf KK |
1060 | /* Provided the symbol, returns the value reffed */ |
1061 | static long get_symbol_value PARAMS ((asymbol *)); | |
1062 | ||
1063 | static long | |
1064 | get_symbol_value (symbol) | |
1065 | asymbol *symbol; | |
1066 | { | |
1067 | long relocation = 0; | |
1068 | ||
1069 | if (bfd_is_com_section (symbol->section)) | |
d6f41a7d KK |
1070 | { |
1071 | relocation = 0; | |
1072 | } | |
e7aa05bf | 1073 | else |
d6f41a7d KK |
1074 | { |
1075 | relocation = symbol->value + | |
1076 | symbol->section->output_section->vma + | |
1077 | symbol->section->output_offset; | |
1078 | } | |
e7aa05bf KK |
1079 | |
1080 | return(relocation); | |
1081 | } | |
1082 | ||
d6f41a7d KK |
1083 | /* Return true if this relocation should |
1084 | appear in the output .reloc section. */ | |
1085 | ||
1086 | static boolean in_reloc_p(abfd, howto) | |
1087 | bfd * abfd; | |
1088 | reloc_howto_type *howto; | |
1089 | { | |
1090 | return | |
1091 | (! howto->pc_relative) | |
1092 | && (howto->type != IMAGE_REL_PPC_TOCREL16) | |
1093 | && (howto->type != IMAGE_REL_PPC_IMGLUE); | |
1094 | } | |
1095 | ||
e7aa05bf KK |
1096 | /* this function is in charge of performing all the ppc PE relocations */ |
1097 | /* Don't yet know if we want to do this this particular way ... (krk) */ | |
d6f41a7d | 1098 | /* FIXME: (it is not yet enabled) */ |
e7aa05bf KK |
1099 | |
1100 | static bfd_reloc_status_type | |
1101 | pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
d6f41a7d | 1102 | error_message) |
e7aa05bf KK |
1103 | bfd *abfd; |
1104 | arelent *reloc_entry; | |
1105 | asymbol *symbol_in; | |
1106 | PTR data; | |
1107 | asection *input_section; | |
1108 | bfd *output_bfd; | |
1109 | char **error_message; | |
1110 | { | |
1111 | /* the consth relocation comes in two parts, we have to remember | |
1112 | the state between calls, in these variables */ | |
1113 | static boolean part1_consth_active = false; | |
1114 | static unsigned long part1_consth_value; | |
1115 | ||
1116 | unsigned long insn; | |
1117 | unsigned long sym_value; | |
1118 | unsigned long unsigned_value; | |
1119 | unsigned short r_type; | |
1120 | long signed_value; | |
d6f41a7d | 1121 | |
e7aa05bf KK |
1122 | unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/ |
1123 | bfd_byte *hit_data =addr + (bfd_byte *)(data); | |
1124 | ||
d6f41a7d | 1125 | fprintf(stderr, "pe_ppc_reloc (%s)\n", TARGET_LITTLE_NAME); |
e7aa05bf | 1126 | |
d6f41a7d | 1127 | r_type = reloc_entry->howto->type; |
e7aa05bf | 1128 | |
d6f41a7d KK |
1129 | if (output_bfd) |
1130 | { | |
1131 | /* Partial linking - do nothing */ | |
1132 | reloc_entry->address += input_section->output_offset; | |
1133 | return bfd_reloc_ok; | |
1134 | } | |
e7aa05bf KK |
1135 | |
1136 | if (symbol_in != NULL | |
1137 | && bfd_is_und_section (symbol_in->section)) | |
e7aa05bf | 1138 | { |
d6f41a7d KK |
1139 | /* Keep the state machine happy in case we're called again */ |
1140 | if (r_type == IMAGE_REL_PPC_REFHI) | |
1141 | { | |
1142 | part1_consth_active = true; | |
1143 | part1_consth_value = 0; | |
1144 | } | |
1145 | return(bfd_reloc_undefined); | |
e7aa05bf | 1146 | } |
d6f41a7d | 1147 | |
e7aa05bf | 1148 | if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR)) |
e7aa05bf | 1149 | { |
d6f41a7d KK |
1150 | part1_consth_active = false; |
1151 | *error_message = (char *) "Missing PAIR"; | |
e7aa05bf KK |
1152 | return(bfd_reloc_dangerous); |
1153 | } | |
e7aa05bf | 1154 | |
e7aa05bf | 1155 | |
d6f41a7d KK |
1156 | sym_value = get_symbol_value(symbol_in); |
1157 | ||
e7aa05bf KK |
1158 | return(bfd_reloc_ok); |
1159 | } | |
1160 | ||
1161 | /* The reloc processing routine for the optimized COFF linker. */ | |
1162 | ||
1163 | static boolean | |
1164 | coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section, | |
d6f41a7d | 1165 | contents, relocs, syms, sections) |
e7aa05bf KK |
1166 | bfd *output_bfd; |
1167 | struct bfd_link_info *info; | |
1168 | bfd *input_bfd; | |
1169 | asection *input_section; | |
1170 | bfd_byte *contents; | |
1171 | struct internal_reloc *relocs; | |
1172 | struct internal_syment *syms; | |
1173 | asection **sections; | |
1174 | { | |
1175 | struct internal_reloc *rel; | |
1176 | struct internal_reloc *relend; | |
1177 | boolean hihalf; | |
1178 | bfd_vma hihalf_val; | |
d6f41a7d KK |
1179 | asection *toc_section = 0; |
1180 | bfd_vma relocation; | |
1181 | reloc_howto_type *howto = 0; | |
1182 | ||
1183 | #ifdef DEBUG_RELOC | |
1184 | fprintf(stderr, | |
1185 | "pe_ppc_relocate_section (%s) for %s \n", | |
1186 | TARGET_LITTLE_NAME, | |
1187 | input_section->name); | |
1188 | ||
1189 | #endif | |
e7aa05bf KK |
1190 | |
1191 | /* If we are performing a relocateable link, we don't need to do a | |
1192 | thing. The caller will take care of adjusting the reloc | |
1193 | addresses and symbol indices. */ | |
e7aa05bf KK |
1194 | if (info->relocateable) |
1195 | return true; | |
d6f41a7d | 1196 | |
e7aa05bf KK |
1197 | hihalf = false; |
1198 | hihalf_val = 0; | |
1199 | ||
1200 | rel = relocs; | |
1201 | relend = rel + input_section->reloc_count; | |
1202 | for (; rel < relend; rel++) | |
1203 | { | |
1204 | long symndx; | |
93b6a3f8 | 1205 | struct ppc_coff_link_hash_entry *h; |
e7aa05bf | 1206 | struct internal_syment *sym; |
e7aa05bf | 1207 | bfd_vma val; |
d6f41a7d KK |
1208 | |
1209 | asection *sec; | |
e7aa05bf | 1210 | bfd_reloc_status_type rstat; |
d6f41a7d KK |
1211 | bfd_byte *loc; |
1212 | ||
1213 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1214 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
1215 | unsigned short junk = EXTRACT_JUNK (rel->r_type); | |
1216 | ||
1217 | #ifdef DEBUG_RELOC | |
93b6a3f8 KK |
1218 | /* now examine flags */ |
1219 | if (r_flags != 0) | |
1220 | { | |
1221 | fprintf (stderr, "Reloc with flags found!"); | |
1222 | if ( r_flags & IMAGE_REL_PPC_NEG ) | |
1223 | fprintf (stderr, " NEG"); | |
1224 | if ( r_flags & IMAGE_REL_PPC_BRTAKEN ) | |
1225 | fprintf (stderr, " BRTAKEN"); | |
1226 | if ( r_flags & IMAGE_REL_PPC_BRNTAKEN ) | |
1227 | fprintf (stderr, " BRNTAKEN"); | |
1228 | if ( r_flags & IMAGE_REL_PPC_TOCDEFN ) | |
1229 | fprintf (stderr, " TOCDEFN"); | |
1230 | fprintf(stderr, "\n"); | |
1231 | } | |
d6f41a7d | 1232 | #endif |
e7aa05bf KK |
1233 | |
1234 | symndx = rel->r_symndx; | |
1235 | loc = contents + rel->r_vaddr - input_section->vma; | |
1236 | ||
d6f41a7d KK |
1237 | /* FIXME: check bounds on r_type */ |
1238 | howto = ppc_coff_howto_table + r_type; | |
1239 | ||
e7aa05bf | 1240 | if (symndx == -1) |
d6f41a7d KK |
1241 | { |
1242 | h = NULL; | |
1243 | sym = NULL; | |
1244 | } | |
e7aa05bf | 1245 | else |
d6f41a7d | 1246 | { |
93b6a3f8 KK |
1247 | h = (struct ppc_coff_link_hash_entry *) |
1248 | (obj_coff_sym_hashes (input_bfd)[symndx]); | |
1249 | if (h != 0) | |
1250 | { | |
1251 | CHECK_EYE(h->eye_catcher); | |
1252 | } | |
1253 | ||
d6f41a7d KK |
1254 | sym = syms + symndx; |
1255 | } | |
e7aa05bf | 1256 | |
e7aa05bf KK |
1257 | sec = NULL; |
1258 | val = 0; | |
1259 | ||
d6f41a7d KK |
1260 | /* FIXME: PAIR unsupported in the following code */ |
1261 | if (h == NULL) | |
1262 | { | |
1263 | if (symndx == -1) | |
1264 | sec = bfd_abs_section_ptr; | |
1265 | else | |
1266 | { | |
1267 | sec = sections[symndx]; | |
1268 | val = (sec->output_section->vma | |
1269 | + sec->output_offset | |
1270 | + sym->n_value | |
1271 | - sec->vma); | |
1272 | } | |
1273 | } | |
1274 | else | |
1275 | { | |
93b6a3f8 KK |
1276 | CHECK_EYE(h->eye_catcher); |
1277 | ||
1278 | if (h->root.root.type == bfd_link_hash_defined | |
1279 | || h->root.root.type == bfd_link_hash_defweak) | |
d6f41a7d | 1280 | { |
93b6a3f8 KK |
1281 | sec = h->root.root.u.def.section; |
1282 | val = (h->root.root.u.def.value | |
d6f41a7d KK |
1283 | + sec->output_section->vma |
1284 | + sec->output_offset); | |
1285 | } | |
1286 | else | |
1287 | { | |
1288 | if (! ((*info->callbacks->undefined_symbol) | |
93b6a3f8 | 1289 | (info, h->root.root.root.string, input_bfd, input_section, |
d6f41a7d KK |
1290 | rel->r_vaddr - input_section->vma))) |
1291 | return false; | |
1292 | } | |
1293 | } | |
e7aa05bf | 1294 | |
d6f41a7d KK |
1295 | rstat = bfd_reloc_ok; |
1296 | ||
1297 | /* Each case must do its own relocation, setting rstat appropriately */ | |
e7aa05bf KK |
1298 | switch (r_type) |
1299 | { | |
1300 | default: | |
d6f41a7d KK |
1301 | fprintf( stderr, |
1302 | "ERROR: during reloc processing -- unsupported reloc %s\n", | |
1303 | howto->name); | |
e7aa05bf | 1304 | bfd_set_error (bfd_error_bad_value); |
d6f41a7d | 1305 | abort(); |
e7aa05bf KK |
1306 | return false; |
1307 | case IMAGE_REL_PPC_TOCREL16: | |
d6f41a7d KK |
1308 | { |
1309 | bfd_vma our_toc_offset; | |
1310 | int fixit; | |
1311 | ||
1312 | DUMP_RELOC2(howto->name, rel); | |
1313 | ||
1314 | if (toc_section == 0) | |
1315 | { | |
1316 | toc_section = bfd_get_section_by_name (bfd_of_toc_owner, | |
1317 | TOC_SECTION_NAME); | |
1318 | #ifdef TOC_DEBUG | |
1319 | ||
1320 | fprintf(stderr, | |
1321 | "BFD of toc owner %p, section addr of %s %p\n", | |
1322 | bfd_of_toc_owner, TOC_SECTION_NAME, toc_section); | |
1323 | #endif | |
1324 | ||
1325 | if ( toc_section == NULL ) | |
1326 | { | |
1327 | fprintf(stderr, "No Toc section!\n"); | |
1328 | abort(); | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | /* | |
1333 | * Amazing bit tricks present. As we may have seen earlier, we | |
1334 | * use the 1 bit to tell us whether or not a toc offset has been | |
1335 | * allocated. Now that they've all been allocated, we will use | |
1336 | * the 1 bit to tell us if we've written this particular toc | |
1337 | * entry out. | |
1338 | */ | |
1339 | fixit = false; | |
1340 | if (h == 0) | |
1341 | { /* it is a file local symbol */ | |
1342 | int *local_toc_table; | |
1343 | const char *name; | |
1344 | ||
1345 | sym = syms + symndx; | |
1346 | name = sym->_n._n_name; | |
1347 | ||
1348 | local_toc_table = obj_coff_local_toc_table(input_bfd); | |
1349 | our_toc_offset = local_toc_table[symndx]; | |
1350 | ||
1351 | if ((our_toc_offset & 1) != 0) | |
1352 | { | |
1353 | /* if it has been written out, it is marked with the | |
1354 | 1 bit. Fix up our offset, but do not write it out | |
1355 | again. | |
1356 | */ | |
1357 | our_toc_offset &= ~1; | |
1358 | #ifdef TOC_DEBUG | |
1359 | ||
1360 | fprintf(stderr, | |
a9713b91 ILT |
1361 | "Not writing out toc_offset of %d for %s\n", |
1362 | our_toc_offset, name); | |
d6f41a7d KK |
1363 | #endif |
1364 | } | |
1365 | else | |
1366 | { | |
1367 | /* write out the toc entry */ | |
a9713b91 | 1368 | record_toc(toc_section, our_toc_offset, priv, strdup(name)); |
d6f41a7d KK |
1369 | #ifdef TOC_DEBUG |
1370 | fprintf(stderr, | |
a9713b91 ILT |
1371 | "Writing out toc_offset " |
1372 | "toc_section (%p,%p)+%d val %d for %s\n", | |
d6f41a7d KK |
1373 | toc_section, |
1374 | toc_section->contents, | |
1375 | our_toc_offset, | |
1376 | val, | |
1377 | name); | |
1378 | #endif | |
1379 | ||
1380 | bfd_put_32(output_bfd, | |
1381 | val, | |
1382 | toc_section->contents + our_toc_offset); | |
1383 | ||
1384 | local_toc_table[symndx] |= 1; | |
1385 | fixit = true; | |
1386 | } | |
1387 | } | |
1388 | else | |
1389 | { | |
93b6a3f8 | 1390 | const char *name = h->root.root.root.string; |
d6f41a7d | 1391 | our_toc_offset = h->toc_offset; |
93b6a3f8 | 1392 | |
a9713b91 ILT |
1393 | if ((r_flags & IMAGE_REL_PPC_TOCDEFN) |
1394 | == IMAGE_REL_PPC_TOCDEFN | |
1395 | && our_toc_offset == 1) | |
cd2b2402 | 1396 | { |
a9713b91 ILT |
1397 | /* This is unbelievable cheese. Some knowledgable asm |
1398 | hacker has decided to use r2 as a base for loading | |
1399 | a value. He/She does this by setting the tocdefn bit, | |
1400 | and not supplying a toc definition. The behaviour is | |
1401 | then to use the difference between the value of the | |
1402 | symbol and the actual location of the toc as the toc | |
1403 | index. | |
1404 | ||
1405 | In fact, what is usually happening is, because the | |
1406 | Import Address Table is mapped immediately following | |
1407 | the toc, some trippy library code trying for speed on | |
1408 | dll linkage, takes advantage of that and considers | |
1409 | the IAT to be part of the toc, thus saving a load. | |
cd2b2402 | 1410 | */ |
a9713b91 ILT |
1411 | our_toc_offset = val - |
1412 | (toc_section->output_section->vma + | |
1413 | toc_section->output_offset); | |
1414 | ||
1415 | /* The size must still fit in a 16bit displacment */ | |
1416 | if (our_toc_offset >= 65535) | |
1417 | { | |
1418 | fprintf(stderr, | |
1419 | "TOCDEFN Relocation exceeded " | |
1420 | "displacment of 65535\n"); | |
1421 | abort(); | |
1422 | } | |
1423 | ||
1424 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); | |
cd2b2402 KK |
1425 | } |
1426 | else if ((our_toc_offset & 1) != 0) | |
d6f41a7d KK |
1427 | { |
1428 | /* if it has been written out, it is marked with the | |
1429 | 1 bit. Fix up our offset, but do not write it out | |
1430 | again. | |
1431 | */ | |
1432 | our_toc_offset &= ~1; | |
1433 | #ifdef TOC_DEBUG | |
1434 | fprintf(stderr, | |
a9713b91 ILT |
1435 | "Not writing out toc_offset of %d for %s\n", |
1436 | our_toc_offset, name); | |
d6f41a7d KK |
1437 | #endif |
1438 | } | |
1439 | else | |
1440 | { | |
a9713b91 | 1441 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); |
93b6a3f8 | 1442 | |
d6f41a7d KK |
1443 | #ifdef TOC_DEBUG |
1444 | /* write out the toc entry */ | |
1445 | fprintf(stderr, | |
a9713b91 ILT |
1446 | "Writing out toc_offset " |
1447 | "toc_section (%p,%p)+%d val %d for %s\n", | |
d6f41a7d KK |
1448 | toc_section, |
1449 | toc_section->contents, | |
1450 | our_toc_offset, | |
1451 | val, | |
1452 | name); | |
1453 | #endif | |
1454 | ||
1455 | /* write out the toc entry */ | |
1456 | bfd_put_32(output_bfd, | |
1457 | val, | |
1458 | toc_section->contents + our_toc_offset); | |
1459 | ||
1460 | h->toc_offset |= 1; | |
1461 | /* The tricky part is that this is the address that */ | |
1462 | /* needs a .reloc entry for it */ | |
1463 | fixit = true; | |
1464 | } | |
1465 | } | |
1466 | ||
1467 | if (fixit && info->base_file) | |
1468 | { | |
1469 | /* So if this is non pcrelative, and is referenced | |
1470 | to a section or a common symbol, then it needs a reloc */ | |
1471 | ||
1472 | /* relocation to a symbol in a section which | |
1473 | isn't absolute - we output the address here | |
1474 | to a file */ | |
1475 | ||
1476 | bfd_vma addr = toc_section->output_section->vma | |
1477 | + toc_section->output_offset + our_toc_offset; | |
1478 | ||
1479 | fprintf(stderr, | |
1480 | " Toc Section reloc candidate\n"); | |
1481 | ||
1482 | if (coff_data(output_bfd)->pe) | |
1483 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1484 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1485 | } | |
1486 | ||
1487 | ||
1488 | /* FIXME: this test is conservative */ | |
cd2b2402 KK |
1489 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN && |
1490 | our_toc_offset > toc_section->_raw_size) | |
d6f41a7d KK |
1491 | { |
1492 | fprintf(stderr, | |
1493 | "reloc offset is bigger than the toc size!\n"); | |
1494 | abort(); | |
1495 | } | |
1496 | ||
1497 | /* Now we know the relocation for this toc reference */ | |
1498 | relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT; | |
1499 | rstat = _bfd_relocate_contents (howto, | |
1500 | input_bfd, | |
1501 | relocation, | |
1502 | loc); | |
1503 | } | |
1504 | break; | |
e7aa05bf | 1505 | case IMAGE_REL_PPC_IFGLUE: |
93b6a3f8 KK |
1506 | { |
1507 | /* To solve this, we need to know whether or not the symbol */ | |
1508 | /* appearing on the call instruction is a glue function or not. */ | |
1509 | /* A glue function must announce itself via a IMGLUE reloc, and */ | |
1510 | /* the reloc contains the required toc restore instruction */ | |
1511 | ||
1512 | bfd_vma x; | |
1513 | const char *my_name; | |
1514 | DUMP_RELOC2(howto->name, rel); | |
1515 | ||
1516 | if (h != 0) | |
1517 | { | |
1518 | my_name = h->root.root.root.string; | |
1519 | if (h->symbol_is_glue == 1) | |
1520 | { | |
1521 | x = bfd_get_32(input_bfd, loc); | |
1522 | bfd_put_32(input_bfd, h->glue_insn, loc); | |
1523 | } | |
1524 | } | |
1525 | } | |
d6f41a7d | 1526 | break; |
e7aa05bf | 1527 | case IMAGE_REL_PPC_SECREL: |
d6f41a7d KK |
1528 | /* Unimplemented: codeview debugging information */ |
1529 | /* For fast access to the header of the section | |
1530 | containing the item. */ | |
1531 | break; | |
1532 | case IMAGE_REL_PPC_SECTION: | |
1533 | /* Unimplemented: codeview debugging information */ | |
1534 | /* Is used to indicate that the value should be relative | |
1535 | to the beginning of the section that contains the | |
1536 | symbol */ | |
1537 | break; | |
e7aa05bf | 1538 | case IMAGE_REL_PPC_ABSOLUTE: |
d6f41a7d KK |
1539 | { |
1540 | const char *my_name; | |
1541 | if (h == 0) | |
1542 | my_name = (syms+symndx)->_n._n_name; | |
1543 | else | |
93b6a3f8 KK |
1544 | { |
1545 | my_name = h->root.root.root.string; | |
1546 | } | |
d6f41a7d KK |
1547 | |
1548 | fprintf(stderr, | |
1549 | "Warning: unsupported reloc %s <file %s, section %s>\n", | |
1550 | howto->name, | |
1551 | bfd_get_filename(input_bfd), | |
1552 | input_section->name); | |
1553 | ||
1554 | fprintf(stderr,"sym %d (%s), r_vaddr %d (%x)\n", | |
1555 | rel->r_symndx, my_name, rel->r_vaddr, rel->r_vaddr); | |
1556 | } | |
1557 | break; | |
93b6a3f8 KK |
1558 | case IMAGE_REL_PPC_IMGLUE: |
1559 | { | |
1560 | /* There is nothing to do now. This reloc was noted in the first | |
1561 | pass over the relocs, and the glue instruction extracted */ | |
1562 | const char *my_name; | |
1563 | if (h->symbol_is_glue == 1) | |
1564 | break; | |
1565 | my_name = h->root.root.root.string; | |
1566 | fprintf(stderr, | |
1567 | "Warning: previously missed IMGLUE reloc %s <file %s, section %s>\n", | |
1568 | howto->name, | |
1569 | bfd_get_filename(input_bfd), | |
1570 | input_section->name); | |
1571 | break; | |
1572 | ||
1573 | } | |
1574 | break; | |
d6f41a7d KK |
1575 | |
1576 | case IMAGE_REL_PPC_ADDR32NB: | |
1577 | { | |
1578 | struct coff_link_hash_entry *myh = 0; | |
1579 | const char *name = 0; | |
1580 | DUMP_RELOC2(howto->name, rel); | |
1581 | if (h == 0) | |
1582 | { /* it is a file local symbol */ | |
1583 | sym = syms + symndx; | |
1584 | name = sym->_n._n_name; | |
1585 | } | |
1586 | else | |
1587 | { | |
1588 | char *target = 0; | |
1589 | ||
93b6a3f8 | 1590 | name = h->root.root.root.string; |
d6f41a7d KK |
1591 | if (strcmp(".idata$2", name) == 0) |
1592 | target = "__idata2_magic__"; | |
1593 | else if (strcmp(".idata$4", name) == 0) | |
1594 | target = "__idata4_magic__"; | |
1595 | else if (strcmp(".idata$5", name) == 0) | |
1596 | target = "__idata5_magic__"; | |
1597 | else | |
1598 | abort(); | |
1599 | ||
1600 | myh = 0; | |
1601 | ||
1602 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1603 | target, | |
1604 | false, false, true); | |
1605 | if (myh == 0) | |
1606 | { | |
a9713b91 ILT |
1607 | fprintf(stderr, "Missing idata magic cookies, " |
1608 | "this cannot work anyway...\n"); | |
d6f41a7d KK |
1609 | abort(); |
1610 | } | |
1611 | ||
93b6a3f8 KK |
1612 | val = myh->root.u.def.value + |
1613 | sec->output_section->vma + sec->output_offset; | |
d6f41a7d KK |
1614 | if (first_thunk_address == 0) |
1615 | { | |
1616 | int idata5offset; | |
1617 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1618 | "__idata5_magic__", | |
1619 | false, false, true); | |
93b6a3f8 KK |
1620 | first_thunk_address = myh->root.u.def.value + |
1621 | sec->output_section->vma + | |
1622 | sec->output_offset - | |
1623 | pe_data(output_bfd)->pe_opthdr.ImageBase; | |
d6f41a7d KK |
1624 | |
1625 | idata5offset = myh->root.u.def.value; | |
1626 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1627 | "__idata6_magic__", | |
1628 | false, false, true); | |
1629 | ||
1630 | thunk_size = myh->root.u.def.value - idata5offset; | |
1631 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1632 | "__idata4_magic__", | |
1633 | false, false, true); | |
1634 | import_table_size = myh->root.u.def.value; | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | rstat = _bfd_relocate_contents (howto, | |
93b6a3f8 KK |
1639 | input_bfd, |
1640 | val - | |
1641 | pe_data(output_bfd)->pe_opthdr.ImageBase, | |
1642 | loc); | |
d6f41a7d | 1643 | } |
e7aa05bf KK |
1644 | break; |
1645 | ||
e7aa05bf | 1646 | case IMAGE_REL_PPC_REL24: |
cd2b2402 KK |
1647 | DUMP_RELOC2(howto->name, rel); |
1648 | val -= (input_section->output_section->vma | |
1649 | + input_section->output_offset); | |
1650 | ||
1651 | rstat = _bfd_relocate_contents (howto, | |
1652 | input_bfd, | |
1653 | val, | |
1654 | loc); | |
1655 | break; | |
1656 | case IMAGE_REL_PPC_ADDR16: | |
e7aa05bf KK |
1657 | case IMAGE_REL_PPC_ADDR24: |
1658 | case IMAGE_REL_PPC_ADDR32: | |
d6f41a7d KK |
1659 | DUMP_RELOC2(howto->name, rel); |
1660 | rstat = _bfd_relocate_contents (howto, | |
1661 | input_bfd, | |
1662 | val, | |
1663 | loc); | |
e7aa05bf KK |
1664 | break; |
1665 | } | |
1666 | ||
d6f41a7d | 1667 | if ( info->base_file ) |
e7aa05bf | 1668 | { |
d6f41a7d KK |
1669 | /* So if this is non pcrelative, and is referenced |
1670 | to a section or a common symbol, then it needs a reloc */ | |
1671 | if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto)) | |
e7aa05bf | 1672 | { |
d6f41a7d KK |
1673 | /* relocation to a symbol in a section which |
1674 | isn't absolute - we output the address here | |
1675 | to a file */ | |
1676 | bfd_vma addr = rel->r_vaddr | |
1677 | - input_section->vma | |
1678 | + input_section->output_offset | |
1679 | + input_section->output_section->vma; | |
1680 | ||
1681 | if (coff_data(output_bfd)->pe) | |
1682 | { | |
1683 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1684 | fprintf(stderr, | |
1685 | " adjusted down to %d", addr); | |
1686 | } | |
1687 | fprintf(stderr, "\n"); | |
1688 | ||
1689 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
e7aa05bf | 1690 | } |
d6f41a7d | 1691 | } |
e7aa05bf | 1692 | |
d6f41a7d KK |
1693 | switch (rstat) |
1694 | { | |
1695 | default: | |
1696 | abort (); | |
1697 | case bfd_reloc_ok: | |
1698 | break; | |
1699 | case bfd_reloc_overflow: | |
1700 | { | |
1701 | const char *name; | |
1702 | char buf[SYMNMLEN + 1]; | |
1703 | ||
1704 | if (symndx == -1) | |
1705 | name = "*ABS*"; | |
1706 | else if (h != NULL) | |
93b6a3f8 | 1707 | name = h->root.root.root.string; |
d6f41a7d KK |
1708 | else if (sym == NULL) |
1709 | name = "*unknown*"; | |
1710 | else if (sym->_n._n_n._n_zeroes == 0 | |
1711 | && sym->_n._n_n._n_offset != 0) | |
1712 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; | |
1713 | else | |
1714 | { | |
1715 | strncpy (buf, sym->_n._n_name, SYMNMLEN); | |
1716 | buf[SYMNMLEN] = '\0'; | |
1717 | name = buf; | |
1718 | } | |
1719 | #if 0 | |
1720 | else | |
1721 | { | |
1722 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); | |
1723 | if (name == NULL) | |
1724 | return false; | |
1725 | } | |
1726 | #endif | |
1727 | ||
1728 | if (! ((*info->callbacks->reloc_overflow) | |
1729 | (info, name, howto->name, | |
1730 | (bfd_vma) 0, input_bfd, | |
1731 | input_section, rel->r_vaddr - input_section->vma))) | |
1732 | return false; | |
1733 | } | |
e7aa05bf | 1734 | } |
d6f41a7d | 1735 | |
e7aa05bf KK |
1736 | } |
1737 | ||
1738 | return true; | |
1739 | } | |
1740 | ||
d6f41a7d | 1741 | #ifdef COFF_IMAGE_WITH_PE |
e7aa05bf | 1742 | |
d6f41a7d | 1743 | long int global_toc_size = 0; |
e7aa05bf | 1744 | |
d6f41a7d | 1745 | bfd* bfd_of_toc_owner = 0; |
e7aa05bf | 1746 | |
d6f41a7d KK |
1747 | long int import_table_size; |
1748 | long int first_thunk_address; | |
1749 | long int thunk_size; | |
1750 | ||
93b6a3f8 KK |
1751 | struct list_ele *head; |
1752 | struct list_ele *tail; | |
1753 | ||
a9713b91 ILT |
1754 | static char * |
1755 | h1 = "\n\t\t\tTOC MAPPING\n\n"; | |
1756 | static char * | |
1757 | h2 = " TOC disassembly Comments Name\n"; | |
1758 | static char * | |
1759 | h3 = " Offset spelling (if present)\n"; | |
1760 | ||
93b6a3f8 KK |
1761 | void |
1762 | dump_toc(vfile) | |
1763 | void *vfile; | |
1764 | { | |
1765 | FILE *file = vfile; | |
1766 | struct list_ele *t; | |
1767 | ||
a9713b91 ILT |
1768 | fprintf(file, h1); |
1769 | fprintf(file, h2); | |
1770 | fprintf(file, h3); | |
93b6a3f8 KK |
1771 | |
1772 | for(t = head; t != 0; t=t->next) | |
1773 | { | |
a9713b91 ILT |
1774 | char *cat; |
1775 | ||
1776 | if (t->cat == priv) | |
1777 | cat = "private "; | |
1778 | else if (t->cat == pub) | |
1779 | cat = "public "; | |
1780 | else if (t->cat == data) | |
1781 | cat = "data-in-toc "; | |
1782 | ||
1783 | if (t->offset > global_toc_size) | |
1784 | { | |
1785 | if (t->offset <= global_toc_size + thunk_size) | |
1786 | cat = "IAT reference "; | |
1787 | else | |
1788 | cat = "Out of bounds!"; | |
1789 | } | |
1790 | ||
93b6a3f8 | 1791 | fprintf(file, |
a9713b91 ILT |
1792 | " %04lx (%d)", t->offset, t->offset - 32768); |
1793 | fprintf(file, | |
1794 | " %s %s\n", | |
1795 | cat, t->name); | |
1796 | ||
93b6a3f8 | 1797 | } |
a9713b91 ILT |
1798 | |
1799 | fprintf(file, "\n"); | |
93b6a3f8 | 1800 | } |
d6f41a7d KK |
1801 | |
1802 | boolean | |
1803 | ppc_allocate_toc_section (info) | |
1804 | struct bfd_link_info *info; | |
1805 | { | |
1806 | asection *s; | |
1807 | bfd_byte *foo; | |
1808 | static char test_char = '1'; | |
1809 | ||
d6f41a7d KK |
1810 | if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */ |
1811 | return true; | |
1812 | ||
1813 | if (bfd_of_toc_owner == 0) | |
1814 | { | |
1815 | fprintf(stderr, | |
1816 | "There is no bfd that owns the toc section!\n"); | |
1817 | abort(); | |
1818 | } | |
1819 | ||
1820 | s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME); | |
1821 | if (s == NULL) | |
1822 | { | |
1823 | fprintf(stderr, "No Toc section!\n"); | |
1824 | abort(); | |
1825 | } | |
1826 | ||
1827 | foo = bfd_alloc(bfd_of_toc_owner, global_toc_size); | |
1828 | memset(foo, test_char, global_toc_size); | |
1829 | ||
1830 | s->_raw_size = s->_cooked_size = global_toc_size; | |
1831 | s->contents = foo; | |
1832 | ||
1833 | return true; | |
e7aa05bf KK |
1834 | } |
1835 | ||
d6f41a7d KK |
1836 | boolean |
1837 | ppc_process_before_allocation (abfd, info) | |
1838 | bfd *abfd; | |
1839 | struct bfd_link_info *info; | |
1840 | { | |
1841 | asection *sec; | |
1842 | struct internal_reloc *i, *rel; | |
1843 | ||
a9713b91 | 1844 | #if DEBUG_RELOC |
d6f41a7d KK |
1845 | fprintf(stderr, |
1846 | "ppc_process_before_allocation: BFD %s\n", | |
1847 | bfd_get_filename(abfd)); | |
1848 | #endif | |
1849 | ||
1850 | /* here we have a bfd that is to be included on the link. We have a hook | |
1851 | to do reloc rummaging, before section sizes are nailed down. */ | |
1852 | ||
1853 | _bfd_coff_get_external_symbols(abfd); | |
1854 | ||
1855 | /* rummage around all the relocs and map the toc */ | |
1856 | sec = abfd->sections; | |
1857 | ||
1858 | if (sec == 0) | |
1859 | { | |
1860 | return true; | |
1861 | } | |
1862 | ||
1863 | for (; sec != 0; sec = sec->next) | |
1864 | { | |
1865 | int toc_offset; | |
a9713b91 | 1866 | |
d6f41a7d KK |
1867 | #ifdef DEBUG_RELOC |
1868 | fprintf(stderr, | |
1869 | " section %s reloc count %d\n", | |
1870 | sec->name, | |
1871 | sec->reloc_count); | |
1872 | #endif | |
1873 | ||
1874 | if (sec->reloc_count == 0) | |
1875 | continue; | |
1876 | ||
1877 | /* load the relocs */ | |
1878 | /* FIXME: there may be a storage leak here */ | |
1879 | i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0); | |
1880 | ||
1881 | if (i == 0) | |
1882 | abort(); | |
1883 | ||
1884 | for (rel=i;rel<i+sec->reloc_count;++rel) | |
1885 | { | |
1886 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1887 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
1888 | unsigned short junk = EXTRACT_JUNK (rel->r_type); | |
1889 | ||
1890 | #ifdef DEBUG_RELOC | |
93b6a3f8 KK |
1891 | /* now examine flags */ |
1892 | if (r_flags != 0) | |
1893 | { | |
1894 | fprintf (stderr, "Reloc with flags found!"); | |
1895 | if ( r_flags & IMAGE_REL_PPC_NEG ) | |
1896 | fprintf (stderr, " NEG"); | |
1897 | if ( r_flags & IMAGE_REL_PPC_BRTAKEN ) | |
1898 | fprintf (stderr, " BRTAKEN"); | |
1899 | if ( r_flags & IMAGE_REL_PPC_BRNTAKEN ) | |
1900 | fprintf (stderr, " BRNTAKEN"); | |
1901 | if ( r_flags & IMAGE_REL_PPC_TOCDEFN ) | |
1902 | fprintf (stderr, " TOCDEFN"); | |
1903 | fprintf(stderr, "\n"); | |
1904 | } | |
d6f41a7d KK |
1905 | #endif |
1906 | ||
1907 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
1908 | ||
1909 | switch(r_type) | |
1910 | { | |
1911 | case IMAGE_REL_PPC_TOCREL16: | |
a9713b91 ILT |
1912 | #if 0 |
1913 | /* FIXME: | |
1914 | This remains unimplemented for now, as it currently adds | |
1915 | un-necessary elements to the toc. All we need to do today | |
1916 | is not do anything if TOCDEFN is on. | |
1917 | */ | |
cd2b2402 KK |
1918 | if ( r_flags & IMAGE_REL_PPC_TOCDEFN ) |
1919 | toc_offset = ppc_record_data_in_toc_entry(abfd, info, sec, | |
1920 | rel->r_symndx, | |
1921 | default_toc); | |
1922 | else | |
1923 | toc_offset = ppc_record_toc_entry(abfd, info, sec, | |
1924 | rel->r_symndx, default_toc); | |
a9713b91 ILT |
1925 | #endif |
1926 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN ) | |
1927 | toc_offset = ppc_record_toc_entry(abfd, info, sec, | |
1928 | rel->r_symndx, default_toc); | |
d6f41a7d | 1929 | break; |
93b6a3f8 KK |
1930 | case IMAGE_REL_PPC_IMGLUE: |
1931 | ppc_mark_symbol_as_glue(abfd, rel->r_symndx, rel); | |
1932 | break; | |
d6f41a7d KK |
1933 | default: |
1934 | break; | |
1935 | } | |
1936 | } | |
1937 | } | |
e7aa05bf KK |
1938 | } |
1939 | ||
e7aa05bf KK |
1940 | #endif |
1941 | ||
1942 | ||
1943 | static bfd_reloc_status_type | |
1944 | ppc_refhi_reloc (abfd, | |
1945 | reloc_entry, | |
1946 | symbol, | |
1947 | data, | |
1948 | input_section, | |
1949 | output_bfd, | |
1950 | error_message) | |
1951 | bfd *abfd; | |
1952 | arelent *reloc_entry; | |
1953 | asymbol *symbol; | |
1954 | PTR data; | |
1955 | asection *input_section; | |
1956 | bfd *output_bfd; | |
1957 | char **error_message; | |
1958 | { | |
1959 | UN_IMPL("REFHI"); | |
1960 | DUMP_RELOC("REFHI",reloc_entry); | |
1961 | ||
1962 | if (output_bfd == (bfd *) NULL) | |
1963 | return bfd_reloc_continue; | |
1964 | ||
1965 | return bfd_reloc_undefined; | |
1966 | } | |
1967 | ||
1968 | static bfd_reloc_status_type | |
1969 | ppc_reflo_reloc (abfd, | |
1970 | reloc_entry, | |
1971 | symbol, | |
1972 | data, | |
1973 | input_section, | |
1974 | output_bfd, | |
1975 | error_message) | |
1976 | bfd *abfd; | |
1977 | arelent *reloc_entry; | |
1978 | asymbol *symbol; | |
1979 | PTR data; | |
1980 | asection *input_section; | |
1981 | bfd *output_bfd; | |
1982 | char **error_message; | |
1983 | { | |
1984 | UN_IMPL("REFLO"); | |
1985 | DUMP_RELOC("REFLO",reloc_entry); | |
1986 | ||
1987 | if (output_bfd == (bfd *) NULL) | |
1988 | return bfd_reloc_continue; | |
1989 | ||
1990 | return bfd_reloc_undefined; | |
1991 | } | |
1992 | ||
1993 | static bfd_reloc_status_type | |
1994 | ppc_pair_reloc (abfd, | |
1995 | reloc_entry, | |
1996 | symbol, | |
1997 | data, | |
1998 | input_section, | |
1999 | output_bfd, | |
2000 | error_message) | |
2001 | bfd *abfd; | |
2002 | arelent *reloc_entry; | |
2003 | asymbol *symbol; | |
2004 | PTR data; | |
2005 | asection *input_section; | |
2006 | bfd *output_bfd; | |
2007 | char **error_message; | |
2008 | { | |
2009 | UN_IMPL("PAIR"); | |
2010 | DUMP_RELOC("PAIR",reloc_entry); | |
2011 | ||
2012 | if (output_bfd == (bfd *) NULL) | |
2013 | return bfd_reloc_continue; | |
2014 | ||
2015 | return bfd_reloc_undefined; | |
2016 | } | |
2017 | ||
2018 | \f | |
2019 | static bfd_reloc_status_type | |
2020 | ppc_toc16_reloc (abfd, | |
2021 | reloc_entry, | |
2022 | symbol, | |
2023 | data, | |
2024 | input_section, | |
2025 | output_bfd, | |
2026 | error_message) | |
2027 | bfd *abfd; | |
2028 | arelent *reloc_entry; | |
2029 | asymbol *symbol; | |
2030 | PTR data; | |
2031 | asection *input_section; | |
2032 | bfd *output_bfd; | |
2033 | char **error_message; | |
2034 | { | |
2035 | UN_IMPL("TOCREL16"); | |
2036 | DUMP_RELOC("TOCREL16",reloc_entry); | |
2037 | ||
2038 | if (output_bfd == (bfd *) NULL) | |
2039 | { | |
2040 | return bfd_reloc_continue; | |
2041 | } | |
2042 | ||
2043 | return bfd_reloc_ok; | |
2044 | } | |
2045 | ||
2046 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ | |
2047 | /* (On the alpha, this is always a linker generated thunk)*/ | |
2048 | /* (i.e. 32bit addr relative to the image base) */ | |
2049 | /* */ | |
2050 | /* */ | |
2051 | ||
2052 | static bfd_reloc_status_type | |
2053 | ppc_addr32nb_reloc (abfd, | |
2054 | reloc_entry, | |
2055 | symbol, | |
2056 | data, | |
2057 | input_section, | |
2058 | output_bfd, | |
2059 | error_message) | |
2060 | bfd *abfd; | |
2061 | arelent *reloc_entry; | |
2062 | asymbol *symbol; | |
2063 | PTR data; | |
2064 | asection *input_section; | |
2065 | bfd *output_bfd; | |
2066 | char **error_message; | |
2067 | { | |
2068 | UN_IMPL("ADDR32NB"); | |
2069 | DUMP_RELOC("ADDR32NB",reloc_entry); | |
2070 | ||
2071 | return bfd_reloc_ok; | |
2072 | } | |
2073 | ||
2074 | static bfd_reloc_status_type | |
2075 | ppc_secrel_reloc (abfd, | |
2076 | reloc_entry, | |
2077 | symbol, | |
2078 | data, | |
2079 | input_section, | |
2080 | output_bfd, | |
2081 | error_message) | |
2082 | bfd *abfd; | |
2083 | arelent *reloc_entry; | |
2084 | asymbol *symbol; | |
2085 | PTR data; | |
2086 | asection *input_section; | |
2087 | bfd *output_bfd; | |
2088 | char **error_message; | |
2089 | { | |
2090 | UN_IMPL("SECREL"); | |
2091 | DUMP_RELOC("SECREL",reloc_entry); | |
2092 | ||
2093 | if (output_bfd == (bfd *) NULL) | |
2094 | return bfd_reloc_continue; | |
2095 | ||
2096 | return bfd_reloc_ok; | |
2097 | } | |
2098 | ||
2099 | static bfd_reloc_status_type | |
2100 | ppc_section_reloc (abfd, | |
2101 | reloc_entry, | |
2102 | symbol, | |
2103 | data, | |
2104 | input_section, | |
2105 | output_bfd, | |
2106 | error_message) | |
2107 | bfd *abfd; | |
2108 | arelent *reloc_entry; | |
2109 | asymbol *symbol; | |
2110 | PTR data; | |
2111 | asection *input_section; | |
2112 | bfd *output_bfd; | |
2113 | char **error_message; | |
2114 | { | |
2115 | UN_IMPL("SECTION"); | |
2116 | DUMP_RELOC("SECTION",reloc_entry); | |
2117 | ||
2118 | if (output_bfd == (bfd *) NULL) | |
2119 | return bfd_reloc_continue; | |
2120 | ||
2121 | return bfd_reloc_ok; | |
2122 | } | |
2123 | ||
2124 | static bfd_reloc_status_type | |
2125 | ppc_imglue_reloc (abfd, | |
2126 | reloc_entry, | |
2127 | symbol, | |
2128 | data, | |
2129 | input_section, | |
2130 | output_bfd, | |
2131 | error_message) | |
2132 | bfd *abfd; | |
2133 | arelent *reloc_entry; | |
2134 | asymbol *symbol; | |
2135 | PTR data; | |
2136 | asection *input_section; | |
2137 | bfd *output_bfd; | |
2138 | char **error_message; | |
2139 | { | |
2140 | UN_IMPL("IMGLUE"); | |
2141 | DUMP_RELOC("IMGLUE",reloc_entry); | |
2142 | ||
2143 | if (output_bfd == (bfd *) NULL) | |
2144 | return bfd_reloc_continue; | |
2145 | ||
2146 | return bfd_reloc_ok; | |
2147 | } | |
2148 | ||
2149 | \f | |
2150 | ||
2151 | #define MAX_RELOC_INDEX \ | |
2152 | (sizeof(ppc_coff_howto_table) / sizeof(ppc_coff_howto_table[0]) - 1) | |
2153 | ||
2154 | ||
2155 | /* FIXME: There is a possiblity that when we read in a reloc from a file, | |
2156 | that there are some bits encoded in the upper portion of the | |
2157 | type field. Not yet implemented. | |
2158 | */ | |
2159 | static void ppc_coff_rtype2howto PARAMS ((arelent *relent, | |
2160 | struct internal_reloc *internal)); | |
2161 | ||
2162 | static void | |
2163 | ppc_coff_rtype2howto (relent, internal) | |
2164 | arelent *relent; | |
2165 | struct internal_reloc *internal; | |
2166 | { | |
2167 | ||
2168 | /* We can encode one of three things in the type field, aside from the | |
2169 | type: | |
2170 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2171 | value, rather than an addition value | |
2172 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2173 | the branch is expected to be taken or not. | |
2174 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2175 | For now, we just strip this stuff to find the type, and ignore it other | |
2176 | than that. | |
2177 | */ | |
2178 | ||
2179 | unsigned short r_type = EXTRACT_TYPE (internal->r_type); | |
2180 | unsigned short r_flags = EXTRACT_FLAGS(internal->r_type); | |
2181 | unsigned short junk = EXTRACT_JUNK (internal->r_type); | |
2182 | ||
2183 | /* the masking process only slices off the bottom byte for r_type. */ | |
2184 | if ( r_type > MAX_RELOC_INDEX ) | |
2185 | { | |
2186 | fprintf(stderr, | |
2187 | "ppc_coff_rtype2howto: reloc index %d out of range [%d, %d]\n", | |
2188 | internal->r_type, 0, MAX_RELOC_INDEX); | |
2189 | abort(); | |
2190 | } | |
2191 | ||
2192 | /* check for absolute crap */ | |
2193 | if ( junk != 0 ) | |
2194 | { | |
2195 | fprintf(stderr, | |
2196 | "ppc_coff_rtype2howto: reloc index %d contains junk %d\n", | |
2197 | internal->r_type, junk); | |
2198 | abort(); | |
2199 | } | |
2200 | ||
2201 | #ifdef DEBUG_RELOC | |
2202 | /* now examine flags */ | |
2203 | if (r_flags != 0) | |
2204 | { | |
2205 | fprintf (stderr, "Reloc with flags found!"); | |
2206 | if ( r_flags & IMAGE_REL_PPC_NEG ) | |
2207 | fprintf (stderr, " NEG"); | |
2208 | if ( r_flags & IMAGE_REL_PPC_BRTAKEN ) | |
2209 | fprintf (stderr, " BRTAKEN"); | |
2210 | if ( r_flags & IMAGE_REL_PPC_BRNTAKEN ) | |
2211 | fprintf (stderr, " BRNTAKEN"); | |
2212 | if ( r_flags & IMAGE_REL_PPC_TOCDEFN ) | |
2213 | fprintf (stderr, " TOCDEFN"); | |
2214 | fprintf(stderr, "\n"); | |
2215 | } | |
2216 | #endif | |
2217 | ||
2218 | switch(r_type) | |
2219 | { | |
2220 | case IMAGE_REL_PPC_ADDR16: | |
2221 | case IMAGE_REL_PPC_REL24: | |
2222 | case IMAGE_REL_PPC_ADDR24: | |
2223 | case IMAGE_REL_PPC_TOCREL16: | |
2224 | case IMAGE_REL_PPC_ADDR32: | |
2225 | case IMAGE_REL_PPC_IFGLUE: | |
2226 | case IMAGE_REL_PPC_ADDR32NB: | |
2227 | case IMAGE_REL_PPC_SECTION: | |
2228 | case IMAGE_REL_PPC_SECREL: | |
2229 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2230 | break; | |
2231 | case IMAGE_REL_PPC_IMGLUE: | |
2232 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
e7aa05bf KK |
2233 | break; |
2234 | default: | |
2235 | fprintf(stderr, | |
2236 | "Warning: Unsupported reloc %s [%d] used -- it may not work.\n", | |
2237 | ppc_coff_howto_table[r_type].name, | |
2238 | r_type); | |
2239 | break; | |
2240 | } | |
d6f41a7d | 2241 | |
e7aa05bf | 2242 | relent->howto = ppc_coff_howto_table + r_type; |
d6f41a7d | 2243 | |
e7aa05bf KK |
2244 | } |
2245 | ||
2246 | static reloc_howto_type * | |
2247 | coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
2248 | bfd *abfd; | |
2249 | asection *sec; | |
2250 | struct internal_reloc *rel; | |
2251 | struct coff_link_hash_entry *h; | |
2252 | struct internal_syment *sym; | |
2253 | bfd_vma *addendp; | |
2254 | { | |
2255 | reloc_howto_type *howto; | |
2256 | ||
2257 | /* We can encode one of three things in the type field, aside from the | |
2258 | type: | |
2259 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2260 | value, rather than an addition value | |
2261 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2262 | the branch is expected to be taken or not. | |
2263 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2264 | For now, we just strip this stuff to find the type, and ignore it other | |
2265 | than that. | |
2266 | */ | |
2267 | ||
2268 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
2269 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
2270 | unsigned short junk = EXTRACT_JUNK (rel->r_type); | |
2271 | ||
2272 | /* the masking process only slices off the bottom byte for r_type. */ | |
2273 | if ( r_type > MAX_RELOC_INDEX ) | |
2274 | { | |
2275 | fprintf(stderr, | |
2276 | "coff_ppc_rtype_to_howto: index %d out of range [%d, %d]\n", | |
2277 | r_type, 0, MAX_RELOC_INDEX); | |
2278 | abort(); | |
2279 | } | |
d6f41a7d | 2280 | |
e7aa05bf KK |
2281 | /* check for absolute crap */ |
2282 | if ( junk != 0 ) | |
2283 | { | |
2284 | fprintf(stderr, | |
2285 | "coff_ppc_rtype_to_howto: reloc index %d contains junk %d\n", | |
2286 | rel->r_type, junk); | |
2287 | abort(); | |
2288 | } | |
d6f41a7d | 2289 | |
e7aa05bf KK |
2290 | #ifdef DEBUG_RELOC |
2291 | /* now examine flags */ | |
2292 | if (r_flags != 0) | |
2293 | { | |
2294 | fprintf (stderr, "Reloc with flags found!"); | |
2295 | if ( r_flags & IMAGE_REL_PPC_NEG ) | |
2296 | fprintf (stderr, " NEG"); | |
2297 | if ( r_flags & IMAGE_REL_PPC_BRTAKEN ) | |
2298 | fprintf (stderr, " BRTAKEN"); | |
2299 | if ( r_flags & IMAGE_REL_PPC_BRNTAKEN ) | |
2300 | fprintf (stderr, " BRNTAKEN"); | |
2301 | if ( r_flags & IMAGE_REL_PPC_TOCDEFN ) | |
2302 | fprintf (stderr, " TOCDEFN"); | |
2303 | fprintf(stderr, "\n"); | |
2304 | } | |
2305 | #endif | |
d6f41a7d | 2306 | |
e7aa05bf KK |
2307 | switch(r_type) |
2308 | { | |
2309 | case IMAGE_REL_PPC_ADDR32NB: | |
2310 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2311 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; | |
2312 | break; | |
2313 | case IMAGE_REL_PPC_ADDR16: | |
2314 | case IMAGE_REL_PPC_REL24: | |
2315 | case IMAGE_REL_PPC_ADDR24: | |
2316 | case IMAGE_REL_PPC_TOCREL16: | |
2317 | case IMAGE_REL_PPC_ADDR32: | |
2318 | case IMAGE_REL_PPC_IFGLUE: | |
2319 | case IMAGE_REL_PPC_SECTION: | |
2320 | case IMAGE_REL_PPC_SECREL: | |
2321 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2322 | break; | |
2323 | case IMAGE_REL_PPC_IMGLUE: | |
2324 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
e7aa05bf KK |
2325 | break; |
2326 | default: | |
2327 | fprintf(stderr, | |
2328 | "Warning: Unsupported reloc %s [%d] used -- it may not work.\n", | |
2329 | ppc_coff_howto_table[r_type].name, | |
2330 | r_type); | |
2331 | break; | |
2332 | } | |
d6f41a7d | 2333 | |
e7aa05bf KK |
2334 | howto = ppc_coff_howto_table + r_type; |
2335 | return howto; | |
2336 | } | |
2337 | ||
2338 | ||
2339 | /* a cheesy little macro to make the code a little more readable */ | |
2340 | #define HOW2MAP(bfd_rtype,ppc_rtype) \ | |
d6f41a7d | 2341 | case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype] |
e7aa05bf KK |
2342 | |
2343 | static reloc_howto_type *ppc_coff_reloc_type_lookup | |
d6f41a7d | 2344 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
e7aa05bf KK |
2345 | |
2346 | static reloc_howto_type * | |
2347 | ppc_coff_reloc_type_lookup (abfd, code) | |
2348 | bfd *abfd; | |
2349 | bfd_reloc_code_real_type code; | |
2350 | { | |
d6f41a7d | 2351 | |
e7aa05bf KK |
2352 | #ifdef DEBUG_RELOC |
2353 | fprintf(stderr, "ppc_coff_reloc_type_lookup for %s\n", | |
d6f41a7d | 2354 | bfd_get_reloc_code_name(code)); |
e7aa05bf | 2355 | #endif |
d6f41a7d | 2356 | |
e7aa05bf KK |
2357 | switch (code) |
2358 | { | |
2359 | HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE); | |
2360 | HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16); | |
2361 | HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24); | |
2362 | HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24); | |
2363 | HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16); | |
2364 | HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32); | |
d6f41a7d KK |
2365 | HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB); |
2366 | default: | |
2367 | fprintf(stderr, | |
2368 | "\treturning NULL\n"); | |
2369 | return NULL; | |
e7aa05bf | 2370 | } |
d6f41a7d | 2371 | |
e7aa05bf KK |
2372 | return NULL; |
2373 | } | |
2374 | ||
2375 | #undef HOW2MAP | |
2376 | ||
2377 | \f | |
2378 | /* Tailor coffcode.h -- macro heaven. */ | |
2379 | ||
2380 | #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst) | |
2381 | ||
d6f41a7d KK |
2382 | #ifndef COFF_IMAGE_WITH_PE |
2383 | static void | |
2384 | ppc_coff_swap_sym_in_hook (); | |
2385 | #endif | |
2386 | ||
2387 | /* We use the special COFF backend linker, with our own special touch. */ | |
2388 | ||
e7aa05bf KK |
2389 | #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup |
2390 | #define coff_rtype_to_howto coff_ppc_rtype_to_howto | |
2391 | #define coff_relocate_section coff_ppc_relocate_section | |
2392 | ||
d6f41a7d KK |
2393 | #ifndef COFF_IMAGE_WITH_PE |
2394 | #define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook | |
2395 | #endif | |
2396 | ||
e7aa05bf KK |
2397 | #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;} |
2398 | ||
2399 | #define COFF_PAGE_SIZE 0x1000 | |
2400 | ||
d6f41a7d KK |
2401 | #define POWERPC_LE_PE |
2402 | ||
e7aa05bf KK |
2403 | #include "coffcode.h" |
2404 | ||
d6f41a7d KK |
2405 | \f |
2406 | ||
2407 | #ifndef COFF_IMAGE_WITH_PE | |
a9713b91 ILT |
2408 | /* FIXME: |
2409 | What we're trying to do here is allocate a toc section (early), and attach | |
2410 | it to the last bfd to be processed. This avoids the problem of having a toc | |
2411 | written out before all files have been processed. This code allocates | |
2412 | a toc section for every file, and records the last one seen. There are | |
2413 | at least two problems with this approach: | |
2414 | 1. We allocate whole bunches of toc sections that are ignored, but at | |
2415 | at least we will not allocate a toc if no .toc is present. | |
2416 | 2. It's not clear to me that being the last bfd read necessarily means | |
2417 | that you are the last bfd closed. | |
2418 | 3. Doing it on a "swap in" hook depends on when the "swap in" is called, | |
2419 | and how often, etc. It's not clear to me that there isn't a hole here. | |
2420 | */ | |
2421 | ||
d6f41a7d KK |
2422 | static void |
2423 | ppc_coff_swap_sym_in_hook (abfd, ext1, in1) | |
2424 | bfd *abfd; | |
2425 | PTR ext1; | |
2426 | PTR in1; | |
2427 | { | |
2428 | SYMENT *ext = (SYMENT *)ext1; | |
2429 | struct internal_syment *in = (struct internal_syment *)in1; | |
2430 | ||
2431 | #if 0 | |
2432 | if (bfd_of_toc_owner != 0) /* we already have a toc, so go home */ | |
2433 | return; | |
2434 | #endif | |
2435 | ||
2436 | if (strcmp(in->_n._n_name, ".toc") == 0) | |
2437 | { | |
2438 | flagword flags; | |
2439 | register asection *s; | |
2440 | char *foo; | |
2441 | ||
2442 | s = bfd_get_section_by_name ( abfd , TOC_SECTION_NAME); | |
2443 | if (s != NULL) | |
2444 | { | |
2445 | return; | |
2446 | } | |
2447 | ||
2448 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ; | |
2449 | ||
2450 | #ifdef TOC_DEBUG | |
2451 | fprintf(stderr, | |
2452 | "ppc_coff_swap_sym_in_hook: about to create the %s section\n", | |
2453 | TOC_SECTION_NAME); | |
2454 | #endif | |
2455 | ||
2456 | s = bfd_make_section (abfd, TOC_SECTION_NAME); | |
2457 | ||
2458 | if (s == NULL | |
2459 | || !bfd_set_section_flags (abfd, s, flags) | |
2460 | || !bfd_set_section_alignment (abfd, s, 2)) | |
2461 | { | |
2462 | fprintf(stderr, | |
2463 | "toc section allocation failed!\n"); | |
2464 | abort(); | |
2465 | } | |
2466 | ||
2467 | /* save the bfd for later allocation */ | |
2468 | bfd_of_toc_owner = abfd; | |
2469 | } | |
2470 | ||
2471 | return; | |
2472 | } | |
2473 | #endif | |
2474 | ||
2475 | \f | |
2476 | ||
e7aa05bf KK |
2477 | /* The transfer vectors that lead the outside world to all of the above. */ |
2478 | ||
2479 | #ifdef TARGET_LITTLE_SYM | |
2480 | const bfd_target | |
2481 | TARGET_LITTLE_SYM = | |
2482 | { | |
2483 | TARGET_LITTLE_NAME, /* name or coff-arm-little */ | |
2484 | bfd_target_coff_flavour, | |
2485 | false, /* data byte order is little */ | |
2486 | false, /* header byte order is little */ | |
2487 | ||
2488 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2489 | HAS_LINENO | HAS_DEBUG | | |
2490 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
d6f41a7d | 2491 | |
e7aa05bf KK |
2492 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
2493 | 0, /* leading char */ | |
2494 | '/', /* ar_pad_char */ | |
2495 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2496 | ||
2497 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
d6f41a7d KK |
2498 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
2499 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
e7aa05bf | 2500 | |
d6f41a7d KK |
2501 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
2502 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2503 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
2504 | ||
e7aa05bf KK |
2505 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
2506 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2507 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2508 | bfd_false}, | |
2509 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2510 | _bfd_write_archive_contents, bfd_false}, | |
d6f41a7d | 2511 | |
e7aa05bf KK |
2512 | BFD_JUMP_TABLE_GENERIC (coff), |
2513 | BFD_JUMP_TABLE_COPY (coff), | |
2514 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2515 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2516 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2517 | BFD_JUMP_TABLE_RELOCS (coff), | |
2518 | BFD_JUMP_TABLE_WRITE (coff), | |
2519 | BFD_JUMP_TABLE_LINK (coff), | |
2520 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
d6f41a7d | 2521 | |
e7aa05bf KK |
2522 | COFF_SWAP_TABLE, |
2523 | }; | |
2524 | #endif | |
2525 | ||
2526 | #ifdef TARGET_BIG_SYM | |
2527 | const bfd_target | |
2528 | TARGET_BIG_SYM = | |
2529 | { | |
2530 | TARGET_BIG_NAME, | |
2531 | bfd_target_coff_flavour, | |
2532 | true, /* data byte order is big */ | |
2533 | true, /* header byte order is big */ | |
2534 | ||
2535 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2536 | HAS_LINENO | HAS_DEBUG | | |
2537 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
2538 | ||
2539 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2540 | 0, /* leading char */ | |
2541 | '/', /* ar_pad_char */ | |
2542 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2543 | ||
2544 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
d6f41a7d KK |
2545 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
2546 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
2547 | ||
e7aa05bf | 2548 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
d6f41a7d KK |
2549 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
2550 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
e7aa05bf KK |
2551 | |
2552 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
2553 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2554 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2555 | bfd_false}, | |
2556 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2557 | _bfd_write_archive_contents, bfd_false}, | |
2558 | ||
2559 | BFD_JUMP_TABLE_GENERIC (coff), | |
2560 | BFD_JUMP_TABLE_COPY (coff), | |
2561 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2562 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2563 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2564 | BFD_JUMP_TABLE_RELOCS (coff), | |
2565 | BFD_JUMP_TABLE_WRITE (coff), | |
2566 | BFD_JUMP_TABLE_LINK (coff), | |
2567 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
2568 | ||
2569 | COFF_SWAP_TABLE, | |
2570 | }; | |
2571 | ||
2572 | #endif |