Commit | Line | Data |
---|---|---|
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 | { \ | |
6e301b2b | 88 | fprintf (stderr,\ |
252b5132 RH |
89 | _("File %s, line %d, Hash check failure, bad eye %8s\n"), \ |
90 | __FILE__, __LINE__, addr->eye_catcher); \ | |
c5930ee6 | 91 | abort (); \ |
252b5132 RH |
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 | |
252b5132 RH |
221 | \f |
222 | /* The nt loader points the toc register to &toc + 32768, in order to */ | |
223 | /* use the complete range of a 16-bit displacement. We have to adjust */ | |
224 | /* for this when we fix up loads displaced off the toc reg. */ | |
225 | #define TOC_LOAD_ADJUSTMENT (-32768) | |
226 | #define TOC_SECTION_NAME ".private.toc" | |
227 | ||
228 | /* The main body of code is in coffcode.h. */ | |
229 | ||
230 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) | |
231 | ||
232 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
233 | from smaller values. Start with zero, widen, *then* decrement. */ | |
234 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
235 | ||
43646c9d | 236 | /* these should definitely go in a header file somewhere... */ |
252b5132 RH |
237 | |
238 | /* NOP */ | |
239 | #define IMAGE_REL_PPC_ABSOLUTE 0x0000 | |
240 | ||
241 | /* 64-bit address */ | |
242 | #define IMAGE_REL_PPC_ADDR64 0x0001 | |
243 | ||
244 | /* 32-bit address */ | |
245 | #define IMAGE_REL_PPC_ADDR32 0x0002 | |
246 | ||
247 | /* 26-bit address, shifted left 2 (branch absolute) */ | |
248 | #define IMAGE_REL_PPC_ADDR24 0x0003 | |
249 | ||
250 | /* 16-bit address */ | |
251 | #define IMAGE_REL_PPC_ADDR16 0x0004 | |
252 | ||
253 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
254 | #define IMAGE_REL_PPC_ADDR14 0x0005 | |
255 | ||
256 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
257 | #define IMAGE_REL_PPC_REL24 0x0006 | |
258 | ||
259 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
260 | #define IMAGE_REL_PPC_REL14 0x0007 | |
261 | ||
262 | /* 16-bit offset from TOC base */ | |
263 | #define IMAGE_REL_PPC_TOCREL16 0x0008 | |
264 | ||
265 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
266 | #define IMAGE_REL_PPC_TOCREL14 0x0009 | |
267 | ||
268 | /* 32-bit addr w/o image base */ | |
269 | #define IMAGE_REL_PPC_ADDR32NB 0x000A | |
270 | ||
271 | /* va of containing section (as in an image sectionhdr) */ | |
272 | #define IMAGE_REL_PPC_SECREL 0x000B | |
273 | ||
274 | /* sectionheader number */ | |
275 | #define IMAGE_REL_PPC_SECTION 0x000C | |
276 | ||
277 | /* substitute TOC restore instruction iff symbol is glue code */ | |
278 | #define IMAGE_REL_PPC_IFGLUE 0x000D | |
279 | ||
280 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
281 | #define IMAGE_REL_PPC_IMGLUE 0x000E | |
282 | ||
283 | /* va of containing section (limited to 16 bits) */ | |
284 | #define IMAGE_REL_PPC_SECREL16 0x000F | |
285 | ||
286 | /* stuff to handle immediate data when the number of bits in the */ | |
287 | /* data is greater than the number of bits in the immediate field */ | |
288 | /* We need to do (usually) 32 bit arithmetic on 16 bit chunks */ | |
289 | #define IMAGE_REL_PPC_REFHI 0x0010 | |
290 | #define IMAGE_REL_PPC_REFLO 0x0011 | |
291 | #define IMAGE_REL_PPC_PAIR 0x0012 | |
292 | ||
293 | /* This is essentially the same as tocrel16, with TOCDEFN assumed */ | |
294 | #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 | |
295 | ||
296 | /* Flag bits in IMAGE_RELOCATION.TYPE */ | |
297 | ||
298 | /* subtract reloc value rather than adding it */ | |
299 | #define IMAGE_REL_PPC_NEG 0x0100 | |
300 | ||
301 | /* fix branch prediction bit to predict branch taken */ | |
302 | #define IMAGE_REL_PPC_BRTAKEN 0x0200 | |
303 | ||
304 | /* fix branch prediction bit to predict branch not taken */ | |
305 | #define IMAGE_REL_PPC_BRNTAKEN 0x0400 | |
306 | ||
307 | /* toc slot defined in file (or, data in toc) */ | |
308 | #define IMAGE_REL_PPC_TOCDEFN 0x0800 | |
309 | ||
310 | /* masks to isolate above values in IMAGE_RELOCATION.Type */ | |
311 | #define IMAGE_REL_PPC_TYPEMASK 0x00FF | |
312 | #define IMAGE_REL_PPC_FLAGMASK 0x0F00 | |
313 | ||
314 | #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK) | |
315 | #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK) | |
316 | #define EXTRACT_JUNK(x) \ | |
317 | ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK)) | |
252b5132 RH |
318 | \f |
319 | /* static helper functions to make relocation work */ | |
320 | /* (Work In Progress) */ | |
321 | ||
322 | static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd, | |
323 | arelent *reloc, | |
324 | asymbol *symbol, | |
325 | PTR data, | |
326 | asection *section, | |
327 | bfd *output_bfd, | |
328 | char **error)); | |
329 | #if 0 | |
330 | static bfd_reloc_status_type ppc_reflo_reloc PARAMS ((bfd *abfd, | |
331 | arelent *reloc, | |
332 | asymbol *symbol, | |
333 | PTR data, | |
334 | asection *section, | |
335 | bfd *output_bfd, | |
336 | char **error)); | |
337 | #endif | |
338 | static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd, | |
339 | arelent *reloc, | |
340 | asymbol *symbol, | |
341 | PTR data, | |
342 | asection *section, | |
343 | bfd *output_bfd, | |
344 | char **error)); | |
252b5132 RH |
345 | \f |
346 | static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd, | |
347 | arelent *reloc, | |
348 | asymbol *symbol, | |
349 | PTR data, | |
350 | asection *section, | |
351 | bfd *output_bfd, | |
352 | char **error)); | |
353 | ||
354 | #if 0 | |
355 | static bfd_reloc_status_type ppc_addr32nb_reloc PARAMS ((bfd *abfd, | |
356 | arelent *reloc, | |
357 | asymbol *symbol, | |
358 | PTR data, | |
359 | asection *section, | |
360 | bfd *output_bfd, | |
361 | char **error)); | |
362 | #endif | |
363 | static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd, | |
364 | arelent *reloc, | |
365 | asymbol *symbol, | |
366 | PTR data, | |
367 | asection *section, | |
368 | bfd *output_bfd, | |
369 | char **error)); | |
370 | ||
371 | static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd, | |
372 | arelent *reloc, | |
373 | asymbol *symbol, | |
374 | PTR data, | |
375 | asection *section, | |
376 | bfd *output_bfd, | |
377 | char **error)); | |
378 | ||
379 | static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd, | |
380 | arelent *reloc, | |
381 | asymbol *symbol, | |
382 | PTR data, | |
383 | asection *section, | |
384 | bfd *output_bfd, | |
385 | char **error)); | |
386 | ||
252b5132 | 387 | static boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto)); |
252b5132 RH |
388 | \f |
389 | /* FIXME: It'll take a while to get through all of these. I only need a few to | |
390 | get us started, so those I'll make sure work. Those marked FIXME are either | |
391 | completely unverified or have a specific unknown marked in the comment */ | |
392 | ||
393 | /*---------------------------------------------------------------------------*/ | |
394 | /* */ | |
395 | /* Relocation entries for Windows/NT on PowerPC. */ | |
396 | /* */ | |
397 | /* From the document "" we find the following listed as used relocs: */ | |
398 | /* */ | |
399 | /* ABSOLUTE : The noop */ | |
400 | /* ADDR[64|32|16] : fields that hold addresses in data fields or the */ | |
401 | /* 16 bit displacement field on a load/store. */ | |
402 | /* ADDR[24|14] : fields that hold addresses in branch and cond */ | |
403 | /* branches. These represent [26|16] bit addresses. */ | |
404 | /* The low order 2 bits are preserved. */ | |
405 | /* REL[24|14] : branches relative to the Instruction Address */ | |
406 | /* register. These represent [26|16] bit addresses, */ | |
407 | /* as before. The instruction field will be zero, and */ | |
408 | /* the address of the SYM will be inserted at link time. */ | |
409 | /* TOCREL16 : 16 bit displacement field referring to a slot in */ | |
410 | /* toc. */ | |
43646c9d | 411 | /* TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. */ |
252b5132 RH |
412 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ |
413 | /* (On the alpha, this is always a linker generated thunk)*/ | |
414 | /* (i.e. 32bit addr relative to the image base) */ | |
415 | /* SECREL : The value is relative to the start of the section */ | |
416 | /* containing the symbol. */ | |
417 | /* SECTION : access to the header containing the item. Supports the */ | |
418 | /* codeview debugger. */ | |
419 | /* */ | |
420 | /* In particular, note that the document does not indicate that the */ | |
421 | /* relocations listed in the header file are used. */ | |
422 | /* */ | |
423 | /* */ | |
424 | /* */ | |
425 | /*---------------------------------------------------------------------------*/ | |
426 | ||
427 | static reloc_howto_type ppc_coff_howto_table[] = | |
428 | { | |
429 | /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */ | |
430 | /* Unused: */ | |
43646c9d KH |
431 | HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */ |
432 | 0, /* rightshift */ | |
433 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
434 | 0, /* bitsize */ | |
435 | false, /* pc_relative */ | |
436 | 0, /* bitpos */ | |
252b5132 | 437 | complain_overflow_dont, /* dont complain_on_overflow */ |
43646c9d | 438 | 0, /* special_function */ |
252b5132 | 439 | "ABSOLUTE", /* name */ |
43646c9d KH |
440 | false, /* partial_inplace */ |
441 | 0x00, /* src_mask */ | |
442 | 0x00, /* dst_mask */ | |
252b5132 | 443 | false), /* pcrel_offset */ |
43646c9d | 444 | |
252b5132 RH |
445 | /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */ |
446 | /* Unused: */ | |
43646c9d KH |
447 | HOWTO(IMAGE_REL_PPC_ADDR64, /* type */ |
448 | 0, /* rightshift */ | |
449 | 3, /* size (0 = byte, 1 = short, 2 = long) */ | |
450 | 64, /* bitsize */ | |
451 | false, /* pc_relative */ | |
452 | 0, /* bitpos */ | |
252b5132 | 453 | complain_overflow_bitfield, /* complain_on_overflow */ |
43646c9d | 454 | 0, /* special_function */ |
252b5132 | 455 | "ADDR64", /* name */ |
43646c9d | 456 | true, /* partial_inplace */ |
252b5132 RH |
457 | MINUS_ONE, /* src_mask */ |
458 | MINUS_ONE, /* dst_mask */ | |
459 | false), /* pcrel_offset */ | |
460 | ||
461 | /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */ | |
462 | /* Used: */ | |
463 | HOWTO (IMAGE_REL_PPC_ADDR32, /* type */ | |
43646c9d KH |
464 | 0, /* rightshift */ |
465 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
466 | 32, /* bitsize */ | |
467 | false, /* pc_relative */ | |
468 | 0, /* bitpos */ | |
252b5132 | 469 | complain_overflow_bitfield, /* complain_on_overflow */ |
43646c9d | 470 | 0, /* special_function */ |
252b5132 | 471 | "ADDR32", /* name */ |
43646c9d KH |
472 | true, /* partial_inplace */ |
473 | 0xffffffff, /* src_mask */ | |
474 | 0xffffffff, /* dst_mask */ | |
252b5132 | 475 | false), /* pcrel_offset */ |
43646c9d | 476 | |
252b5132 RH |
477 | /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */ |
478 | /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */ | |
479 | /* Of course, That's the IBM approved bit numbering, which is not what */ | |
43646c9d | 480 | /* anyone else uses.... The li field is in bit 2 thru 25 */ |
252b5132 RH |
481 | /* Used: */ |
482 | HOWTO (IMAGE_REL_PPC_ADDR24, /* type */ | |
43646c9d KH |
483 | 0, /* rightshift */ |
484 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
252b5132 | 485 | 26, /* bitsize */ |
43646c9d KH |
486 | false, /* pc_relative */ |
487 | 0, /* bitpos */ | |
252b5132 | 488 | complain_overflow_bitfield, /* complain_on_overflow */ |
43646c9d | 489 | 0, /* special_function */ |
252b5132 | 490 | "ADDR24", /* name */ |
43646c9d KH |
491 | true, /* partial_inplace */ |
492 | 0x07fffffc, /* src_mask */ | |
493 | 0x07fffffc, /* dst_mask */ | |
252b5132 | 494 | false), /* pcrel_offset */ |
43646c9d | 495 | |
252b5132 RH |
496 | /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */ |
497 | /* Used: */ | |
43646c9d KH |
498 | HOWTO (IMAGE_REL_PPC_ADDR16, /* type */ |
499 | 0, /* rightshift */ | |
500 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
501 | 16, /* bitsize */ | |
502 | false, /* pc_relative */ | |
503 | 0, /* bitpos */ | |
252b5132 | 504 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 505 | 0, /* special_function */ |
252b5132 | 506 | "ADDR16", /* name */ |
43646c9d KH |
507 | true, /* partial_inplace */ |
508 | 0xffff, /* src_mask */ | |
509 | 0xffff, /* dst_mask */ | |
252b5132 | 510 | false), /* pcrel_offset */ |
43646c9d | 511 | |
252b5132 RH |
512 | /* IMAGE_REL_PPC_ADDR14 0x0005 */ |
513 | /* 16-bit address, shifted left 2 (load doubleword) */ | |
514 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
515 | /* Unused: */ | |
43646c9d KH |
516 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ |
517 | 1, /* rightshift */ | |
518 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
519 | 16, /* bitsize */ | |
520 | false, /* pc_relative */ | |
521 | 0, /* bitpos */ | |
252b5132 | 522 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 523 | 0, /* special_function */ |
252b5132 | 524 | "ADDR16", /* name */ |
43646c9d KH |
525 | true, /* partial_inplace */ |
526 | 0xffff, /* src_mask */ | |
527 | 0xffff, /* dst_mask */ | |
252b5132 | 528 | false), /* pcrel_offset */ |
43646c9d | 529 | |
252b5132 RH |
530 | /* IMAGE_REL_PPC_REL24 0x0006 */ |
531 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ | |
532 | /* Used: */ | |
533 | HOWTO (IMAGE_REL_PPC_REL24, /* type */ | |
43646c9d KH |
534 | 0, /* rightshift */ |
535 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
536 | 26, /* bitsize */ | |
537 | true, /* pc_relative */ | |
538 | 0, /* bitpos */ | |
252b5132 | 539 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 540 | 0, /* special_function */ |
252b5132 | 541 | "REL24", /* name */ |
43646c9d KH |
542 | true, /* partial_inplace */ |
543 | 0x3fffffc, /* src_mask */ | |
544 | 0x3fffffc, /* dst_mask */ | |
252b5132 | 545 | false), /* pcrel_offset */ |
43646c9d | 546 | |
252b5132 RH |
547 | /* IMAGE_REL_PPC_REL14 0x0007 */ |
548 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ | |
549 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ | |
550 | /* FIXME: how does it know how far to shift? */ | |
551 | /* Unused: */ | |
43646c9d KH |
552 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ |
553 | 1, /* rightshift */ | |
554 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
555 | 16, /* bitsize */ | |
556 | false, /* pc_relative */ | |
557 | 0, /* bitpos */ | |
252b5132 | 558 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 559 | 0, /* special_function */ |
252b5132 | 560 | "ADDR16", /* name */ |
43646c9d KH |
561 | true, /* partial_inplace */ |
562 | 0xffff, /* src_mask */ | |
563 | 0xffff, /* dst_mask */ | |
252b5132 | 564 | true), /* pcrel_offset */ |
43646c9d | 565 | |
252b5132 RH |
566 | /* IMAGE_REL_PPC_TOCREL16 0x0008 */ |
567 | /* 16-bit offset from TOC base */ | |
568 | /* Used: */ | |
43646c9d KH |
569 | HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */ |
570 | 0, /* rightshift */ | |
571 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
572 | 16, /* bitsize */ | |
573 | false, /* pc_relative */ | |
574 | 0, /* bitpos */ | |
252b5132 | 575 | complain_overflow_dont, /* complain_on_overflow */ |
43646c9d | 576 | ppc_toc16_reloc, /* special_function */ |
252b5132 | 577 | "TOCREL16", /* name */ |
43646c9d KH |
578 | false, /* partial_inplace */ |
579 | 0xffff, /* src_mask */ | |
580 | 0xffff, /* dst_mask */ | |
252b5132 | 581 | false), /* pcrel_offset */ |
43646c9d | 582 | |
252b5132 RH |
583 | /* IMAGE_REL_PPC_TOCREL14 0x0009 */ |
584 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ | |
585 | /* Unused: */ | |
43646c9d KH |
586 | HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */ |
587 | 1, /* rightshift */ | |
588 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
589 | 16, /* bitsize */ | |
590 | false, /* pc_relative */ | |
591 | 0, /* bitpos */ | |
252b5132 | 592 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 593 | 0, /* special_function */ |
252b5132 | 594 | "TOCREL14", /* name */ |
43646c9d KH |
595 | false, /* partial_inplace */ |
596 | 0xffff, /* src_mask */ | |
597 | 0xffff, /* dst_mask */ | |
252b5132 | 598 | false), /* pcrel_offset */ |
43646c9d | 599 | |
252b5132 RH |
600 | /* IMAGE_REL_PPC_ADDR32NB 0x000A */ |
601 | /* 32-bit addr w/ image base */ | |
602 | /* Unused: */ | |
43646c9d KH |
603 | HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */ |
604 | 0, /* rightshift */ | |
605 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
606 | 32, /* bitsize */ | |
607 | false, /* pc_relative */ | |
608 | 0, /* bitpos */ | |
252b5132 | 609 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 610 | 0, /* special_function */ |
252b5132 | 611 | "ADDR32NB", /* name */ |
43646c9d KH |
612 | true, /* partial_inplace */ |
613 | 0xffffffff, /* src_mask */ | |
614 | 0xffffffff, /* dst_mask */ | |
252b5132 | 615 | false), /* pcrel_offset */ |
43646c9d | 616 | |
252b5132 RH |
617 | /* IMAGE_REL_PPC_SECREL 0x000B */ |
618 | /* va of containing section (as in an image sectionhdr) */ | |
619 | /* Unused: */ | |
43646c9d KH |
620 | HOWTO (IMAGE_REL_PPC_SECREL,/* type */ |
621 | 0, /* rightshift */ | |
622 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
623 | 32, /* bitsize */ | |
624 | false, /* pc_relative */ | |
625 | 0, /* bitpos */ | |
252b5132 | 626 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 627 | ppc_secrel_reloc, /* special_function */ |
252b5132 | 628 | "SECREL", /* name */ |
43646c9d KH |
629 | true, /* partial_inplace */ |
630 | 0xffffffff, /* src_mask */ | |
631 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
632 | true), /* pcrel_offset */ |
633 | ||
634 | /* IMAGE_REL_PPC_SECTION 0x000C */ | |
635 | /* sectionheader number */ | |
636 | /* Unused: */ | |
43646c9d KH |
637 | HOWTO (IMAGE_REL_PPC_SECTION,/* type */ |
638 | 0, /* rightshift */ | |
639 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
640 | 32, /* bitsize */ | |
641 | false, /* pc_relative */ | |
642 | 0, /* bitpos */ | |
252b5132 | 643 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 644 | ppc_section_reloc, /* special_function */ |
252b5132 | 645 | "SECTION", /* name */ |
43646c9d KH |
646 | true, /* partial_inplace */ |
647 | 0xffffffff, /* src_mask */ | |
648 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
649 | true), /* pcrel_offset */ |
650 | ||
651 | /* IMAGE_REL_PPC_IFGLUE 0x000D */ | |
652 | /* substitute TOC restore instruction iff symbol is glue code */ | |
653 | /* Used: */ | |
43646c9d KH |
654 | HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */ |
655 | 0, /* rightshift */ | |
656 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
657 | 32, /* bitsize */ | |
658 | false, /* pc_relative */ | |
659 | 0, /* bitpos */ | |
252b5132 | 660 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 661 | 0, /* special_function */ |
252b5132 | 662 | "IFGLUE", /* name */ |
43646c9d KH |
663 | true, /* partial_inplace */ |
664 | 0xffffffff, /* src_mask */ | |
665 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
666 | false), /* pcrel_offset */ |
667 | ||
668 | /* IMAGE_REL_PPC_IMGLUE 0x000E */ | |
669 | /* symbol is glue code; virtual address is TOC restore instruction */ | |
670 | /* Unused: */ | |
43646c9d KH |
671 | HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */ |
672 | 0, /* rightshift */ | |
673 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
674 | 32, /* bitsize */ | |
675 | false, /* pc_relative */ | |
676 | 0, /* bitpos */ | |
252b5132 | 677 | complain_overflow_dont, /* complain_on_overflow */ |
43646c9d | 678 | ppc_imglue_reloc, /* special_function */ |
252b5132 | 679 | "IMGLUE", /* name */ |
43646c9d KH |
680 | false, /* partial_inplace */ |
681 | 0xffffffff, /* src_mask */ | |
682 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
683 | false), /* pcrel_offset */ |
684 | ||
685 | /* IMAGE_REL_PPC_SECREL16 0x000F */ | |
686 | /* va of containing section (limited to 16 bits) */ | |
687 | /* Unused: */ | |
43646c9d KH |
688 | HOWTO (IMAGE_REL_PPC_SECREL16,/* type */ |
689 | 0, /* rightshift */ | |
690 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
691 | 16, /* bitsize */ | |
692 | false, /* pc_relative */ | |
693 | 0, /* bitpos */ | |
252b5132 | 694 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 695 | 0, /* special_function */ |
252b5132 | 696 | "SECREL16", /* name */ |
43646c9d KH |
697 | true, /* partial_inplace */ |
698 | 0xffff, /* src_mask */ | |
699 | 0xffff, /* dst_mask */ | |
252b5132 RH |
700 | true), /* pcrel_offset */ |
701 | ||
702 | /* IMAGE_REL_PPC_REFHI 0x0010 */ | |
703 | /* Unused: */ | |
43646c9d KH |
704 | HOWTO (IMAGE_REL_PPC_REFHI, /* type */ |
705 | 0, /* rightshift */ | |
706 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
707 | 16, /* bitsize */ | |
708 | false, /* pc_relative */ | |
709 | 0, /* bitpos */ | |
252b5132 | 710 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 711 | ppc_refhi_reloc, /* special_function */ |
252b5132 | 712 | "REFHI", /* name */ |
43646c9d KH |
713 | true, /* partial_inplace */ |
714 | 0xffffffff, /* src_mask */ | |
715 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
716 | false), /* pcrel_offset */ |
717 | ||
718 | /* IMAGE_REL_PPC_REFLO 0x0011 */ | |
719 | /* Unused: */ | |
43646c9d KH |
720 | HOWTO (IMAGE_REL_PPC_REFLO, /* type */ |
721 | 0, /* rightshift */ | |
722 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
723 | 16, /* bitsize */ | |
724 | false, /* pc_relative */ | |
725 | 0, /* bitpos */ | |
252b5132 | 726 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 727 | ppc_refhi_reloc, /* special_function */ |
252b5132 | 728 | "REFLO", /* name */ |
43646c9d KH |
729 | true, /* partial_inplace */ |
730 | 0xffffffff, /* src_mask */ | |
731 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
732 | false), /* pcrel_offset */ |
733 | ||
734 | /* IMAGE_REL_PPC_PAIR 0x0012 */ | |
735 | /* Unused: */ | |
43646c9d KH |
736 | HOWTO (IMAGE_REL_PPC_PAIR, /* type */ |
737 | 0, /* rightshift */ | |
738 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
739 | 16, /* bitsize */ | |
740 | false, /* pc_relative */ | |
741 | 0, /* bitpos */ | |
252b5132 | 742 | complain_overflow_signed, /* complain_on_overflow */ |
43646c9d | 743 | ppc_pair_reloc, /* special_function */ |
252b5132 | 744 | "PAIR", /* name */ |
43646c9d KH |
745 | true, /* partial_inplace */ |
746 | 0xffffffff, /* src_mask */ | |
747 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
748 | false), /* pcrel_offset */ |
749 | ||
750 | /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */ | |
751 | /* 16-bit offset from TOC base, without causing a definition */ | |
752 | /* Used: */ | |
43646c9d KH |
753 | HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */ |
754 | 0, /* rightshift */ | |
755 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
756 | 16, /* bitsize */ | |
757 | false, /* pc_relative */ | |
758 | 0, /* bitpos */ | |
252b5132 | 759 | complain_overflow_dont, /* complain_on_overflow */ |
43646c9d | 760 | 0, /* special_function */ |
252b5132 | 761 | "TOCREL16, TOCDEFN", /* name */ |
43646c9d KH |
762 | false, /* partial_inplace */ |
763 | 0xffff, /* src_mask */ | |
764 | 0xffff, /* dst_mask */ | |
252b5132 RH |
765 | false), /* pcrel_offset */ |
766 | ||
767 | }; | |
252b5132 | 768 | \f |
252b5132 RH |
769 | /* Some really cheezy macros that can be turned on to test stderr :-) */ |
770 | ||
771 | #ifdef DEBUG_RELOC | |
772 | #define UN_IMPL(x) \ | |
773 | { \ | |
774 | static int i; \ | |
775 | if (i == 0) \ | |
776 | { \ | |
777 | i = 1; \ | |
6e301b2b | 778 | fprintf (stderr,_("Unimplemented Relocation -- %s\n"),x); \ |
252b5132 RH |
779 | } \ |
780 | } | |
781 | ||
782 | #define DUMP_RELOC(n,r) \ | |
783 | { \ | |
6e301b2b | 784 | fprintf (stderr,"%s sym %d, addr %d, addend %d\n", \ |
252b5132 RH |
785 | n, (*(r->sym_ptr_ptr))->name, \ |
786 | r->address, r->addend); \ | |
787 | } | |
788 | ||
43646c9d KH |
789 | /* Given a reloc name, n, and a pointer to an internal_reloc, |
790 | dump out interesting information on the contents | |
252b5132 RH |
791 | |
792 | #define n_name _n._n_name | |
793 | #define n_zeroes _n._n_n._n_zeroes | |
794 | #define n_offset _n._n_n._n_offset | |
795 | ||
796 | */ | |
797 | ||
798 | #define DUMP_RELOC2(n,r) \ | |
799 | { \ | |
6e301b2b | 800 | fprintf (stderr,"%s sym %d, r_vaddr %d %s\n", \ |
252b5132 RH |
801 | n, r->r_symndx, r->r_vaddr,\ |
802 | (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \ | |
803 | ?" ":" TOCDEFN" ); \ | |
804 | } | |
805 | ||
806 | #else | |
807 | #define UN_IMPL(x) | |
808 | #define DUMP_RELOC(n,r) | |
809 | #define DUMP_RELOC2(n,r) | |
810 | #endif | |
252b5132 RH |
811 | \f |
812 | /* toc construction and management routines */ | |
813 | ||
814 | /* This file is compiled twice, and these variables are defined in one | |
815 | of the compilations. FIXME: This is confusing and weird. Also, | |
816 | BFD should not use global variables. */ | |
817 | extern bfd* bfd_of_toc_owner; | |
818 | extern long int global_toc_size; | |
819 | ||
820 | extern long int import_table_size; | |
821 | extern long int first_thunk_address; | |
822 | extern long int thunk_size; | |
823 | ||
824 | enum toc_type | |
825 | { | |
826 | default_toc, | |
827 | toc_32, | |
828 | toc_64 | |
829 | }; | |
830 | ||
831 | enum ref_category | |
832 | { | |
833 | priv, | |
834 | pub, | |
835 | data | |
836 | }; | |
837 | ||
838 | struct list_ele | |
839 | { | |
840 | struct list_ele *next; | |
841 | bfd_vma addr; | |
842 | enum ref_category cat; | |
843 | int offset; | |
844 | const char *name; | |
845 | }; | |
846 | ||
847 | extern struct list_ele *head; | |
848 | extern struct list_ele *tail; | |
849 | ||
850 | static void record_toc | |
851 | PARAMS ((asection *, int, enum ref_category, const char *)); | |
852 | ||
853 | static void | |
854 | record_toc (toc_section, our_toc_offset, cat, name) | |
855 | asection *toc_section; | |
856 | int our_toc_offset; | |
857 | enum ref_category cat; | |
858 | const char *name; | |
859 | { | |
860 | /* add this entry to our toc addr-offset-name list */ | |
861 | struct list_ele *t; | |
862 | t = (struct list_ele *) bfd_malloc (sizeof (struct list_ele)); | |
863 | if (t == NULL) | |
864 | abort (); | |
865 | t->next = 0; | |
866 | t->offset = our_toc_offset; | |
867 | t->name = name; | |
868 | t->cat = cat; | |
869 | t->addr = toc_section->output_offset + our_toc_offset; | |
870 | ||
871 | if (head == 0) | |
872 | { | |
873 | head = t; | |
874 | tail = t; | |
875 | } | |
876 | else | |
877 | { | |
878 | tail->next = t; | |
879 | tail = t; | |
880 | } | |
881 | } | |
882 | ||
883 | #ifdef COFF_IMAGE_WITH_PE | |
884 | ||
885 | static boolean ppc_record_toc_entry | |
886 | PARAMS ((bfd *, struct bfd_link_info *, asection *, int, enum toc_type)); | |
887 | static void ppc_mark_symbol_as_glue | |
888 | PARAMS ((bfd *, int, struct internal_reloc *)); | |
889 | ||
890 | /* record a toc offset against a symbol */ | |
891 | static boolean | |
892 | ppc_record_toc_entry(abfd, info, sec, sym, toc_kind) | |
893 | bfd *abfd; | |
5f771d47 ILT |
894 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
895 | asection *sec ATTRIBUTE_UNUSED; | |
252b5132 | 896 | int sym; |
5f771d47 | 897 | enum toc_type toc_kind ATTRIBUTE_UNUSED; |
252b5132 RH |
898 | { |
899 | struct ppc_coff_link_hash_entry *h; | |
900 | const char *name; | |
901 | ||
902 | int *local_syms; | |
903 | ||
904 | h = 0; | |
905 | ||
906 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
907 | if (h != 0) | |
908 | { | |
909 | HASH_CHECK(h); | |
910 | } | |
911 | ||
43646c9d KH |
912 | if (h == 0) |
913 | { | |
252b5132 RH |
914 | local_syms = obj_coff_local_toc_table(abfd); |
915 | if (local_syms == 0) | |
916 | { | |
917 | unsigned int i; | |
918 | /* allocate a table */ | |
43646c9d KH |
919 | local_syms = |
920 | (int *) bfd_zalloc (abfd, | |
c5930ee6 | 921 | obj_raw_syment_count(abfd) * sizeof (int)); |
252b5132 RH |
922 | if (local_syms == 0) |
923 | return false; | |
924 | obj_coff_local_toc_table(abfd) = local_syms; | |
925 | for (i = 0; i < obj_raw_syment_count(abfd); ++i) | |
926 | { | |
927 | SET_UNALLOCATED(local_syms[i]); | |
928 | } | |
929 | } | |
930 | ||
43646c9d | 931 | if (IS_UNALLOCATED(local_syms[sym])) |
252b5132 RH |
932 | { |
933 | local_syms[sym] = global_toc_size; | |
934 | global_toc_size += 4; | |
935 | ||
936 | /* The size must fit in a 16bit displacment */ | |
937 | if (global_toc_size > 65535) | |
938 | { | |
939 | (*_bfd_error_handler) (_("TOC overflow")); | |
940 | bfd_set_error (bfd_error_file_too_big); | |
941 | return false; | |
942 | } | |
943 | } | |
944 | } | |
945 | else | |
946 | { | |
947 | name = h->root.root.root.string; | |
948 | ||
949 | /* check to see if there's a toc slot allocated. If not, do it | |
950 | here. It will be used in relocate_section */ | |
951 | if (IS_UNALLOCATED(h->toc_offset)) | |
952 | { | |
953 | h->toc_offset = global_toc_size; | |
954 | global_toc_size += 4; | |
955 | ||
956 | /* The size must fit in a 16bit displacment */ | |
957 | if (global_toc_size >= 65535) | |
958 | { | |
959 | (*_bfd_error_handler) (_("TOC overflow")); | |
960 | bfd_set_error (bfd_error_file_too_big); | |
961 | return false; | |
962 | } | |
963 | } | |
964 | } | |
965 | ||
966 | return true; | |
967 | } | |
968 | ||
969 | /* record a toc offset against a symbol */ | |
970 | static void | |
971 | ppc_mark_symbol_as_glue(abfd, sym, rel) | |
972 | bfd *abfd; | |
973 | int sym; | |
974 | struct internal_reloc *rel; | |
975 | { | |
976 | struct ppc_coff_link_hash_entry *h; | |
977 | ||
978 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); | |
979 | ||
980 | HASH_CHECK(h); | |
981 | ||
982 | h->symbol_is_glue = 1; | |
983 | h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr); | |
984 | ||
985 | return; | |
986 | } | |
987 | ||
988 | #endif /* COFF_IMAGE_WITH_PE */ | |
989 | \f | |
252b5132 | 990 | /* Return true if this relocation should |
43646c9d | 991 | appear in the output .reloc section. */ |
252b5132 RH |
992 | |
993 | static boolean in_reloc_p(abfd, howto) | |
5f771d47 | 994 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
995 | reloc_howto_type *howto; |
996 | { | |
43646c9d KH |
997 | return |
998 | (! howto->pc_relative) | |
252b5132 RH |
999 | && (howto->type != IMAGE_REL_PPC_ADDR32NB) |
1000 | && (howto->type != IMAGE_REL_PPC_TOCREL16) | |
1001 | && (howto->type != IMAGE_REL_PPC_IMGLUE) | |
43646c9d | 1002 | && (howto->type != IMAGE_REL_PPC_IFGLUE) |
252b5132 RH |
1003 | && (howto->type != IMAGE_REL_PPC_SECREL) |
1004 | && (howto->type != IMAGE_REL_PPC_SECTION) | |
1005 | && (howto->type != IMAGE_REL_PPC_SECREL16) | |
1006 | && (howto->type != IMAGE_REL_PPC_REFHI) | |
1007 | && (howto->type != IMAGE_REL_PPC_REFLO) | |
1008 | && (howto->type != IMAGE_REL_PPC_PAIR) | |
1009 | && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ; | |
43646c9d | 1010 | } |
252b5132 RH |
1011 | |
1012 | #if 0 | |
1013 | ||
1014 | /* this function is in charge of performing all the ppc PE relocations */ | |
1015 | /* Don't yet know if we want to do this this particular way ... (krk) */ | |
1016 | /* FIXME: (it is not yet enabled) */ | |
1017 | ||
1018 | static bfd_reloc_status_type | |
1019 | pe_ppc_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, | |
1020 | error_message) | |
1021 | bfd *abfd; | |
1022 | arelent *reloc_entry; | |
1023 | asymbol *symbol_in; | |
1024 | PTR data; | |
1025 | asection *input_section; | |
1026 | bfd *output_bfd; | |
1027 | char **error_message; | |
1028 | { | |
1029 | /* the consth relocation comes in two parts, we have to remember | |
1030 | the state between calls, in these variables */ | |
1031 | static boolean part1_consth_active = false; | |
1032 | static unsigned long part1_consth_value; | |
1033 | ||
1034 | unsigned long sym_value; | |
1035 | unsigned short r_type; | |
1036 | unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/ | |
43646c9d | 1037 | |
252b5132 RH |
1038 | r_type = reloc_entry->howto->type; |
1039 | ||
43646c9d | 1040 | if (output_bfd) |
252b5132 RH |
1041 | { |
1042 | /* Partial linking - do nothing */ | |
1043 | reloc_entry->address += input_section->output_offset; | |
43646c9d | 1044 | return bfd_reloc_ok; |
252b5132 RH |
1045 | } |
1046 | ||
1047 | if (symbol_in != NULL | |
1048 | && bfd_is_und_section (symbol_in->section)) | |
1049 | { | |
1050 | /* Keep the state machine happy in case we're called again */ | |
43646c9d | 1051 | if (r_type == IMAGE_REL_PPC_REFHI) |
252b5132 RH |
1052 | { |
1053 | part1_consth_active = true; | |
1054 | part1_consth_value = 0; | |
1055 | } | |
1056 | return(bfd_reloc_undefined); | |
1057 | } | |
43646c9d KH |
1058 | |
1059 | if ((part1_consth_active) && (r_type != IMAGE_REL_PPC_PAIR)) | |
252b5132 RH |
1060 | { |
1061 | part1_consth_active = false; | |
1062 | *error_message = (char *) _("Missing PAIR"); | |
1063 | return(bfd_reloc_dangerous); | |
1064 | } | |
1065 | ||
252b5132 | 1066 | sym_value = get_symbol_value(symbol_in); |
43646c9d KH |
1067 | |
1068 | return(bfd_reloc_ok); | |
252b5132 RH |
1069 | } |
1070 | ||
1071 | #endif /* 0 */ | |
1072 | ||
1073 | /* The reloc processing routine for the optimized COFF linker. */ | |
1074 | ||
1075 | static boolean | |
1076 | coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section, | |
1077 | contents, relocs, syms, sections) | |
1078 | bfd *output_bfd; | |
1079 | struct bfd_link_info *info; | |
1080 | bfd *input_bfd; | |
1081 | asection *input_section; | |
1082 | bfd_byte *contents; | |
1083 | struct internal_reloc *relocs; | |
1084 | struct internal_syment *syms; | |
1085 | asection **sections; | |
1086 | { | |
1087 | struct internal_reloc *rel; | |
1088 | struct internal_reloc *relend; | |
1089 | boolean hihalf; | |
1090 | bfd_vma hihalf_val; | |
1091 | asection *toc_section = 0; | |
1092 | bfd_vma relocation; | |
1093 | reloc_howto_type *howto = 0; | |
43646c9d | 1094 | |
252b5132 RH |
1095 | /* If we are performing a relocateable link, we don't need to do a |
1096 | thing. The caller will take care of adjusting the reloc | |
1097 | addresses and symbol indices. */ | |
1098 | if (info->relocateable) | |
1099 | return true; | |
43646c9d | 1100 | |
252b5132 RH |
1101 | hihalf = false; |
1102 | hihalf_val = 0; | |
1103 | ||
1104 | rel = relocs; | |
1105 | relend = rel + input_section->reloc_count; | |
1106 | for (; rel < relend; rel++) | |
1107 | { | |
1108 | long symndx; | |
1109 | struct ppc_coff_link_hash_entry *h; | |
1110 | struct internal_syment *sym; | |
1111 | bfd_vma val; | |
1112 | ||
1113 | asection *sec; | |
1114 | bfd_reloc_status_type rstat; | |
1115 | bfd_byte *loc; | |
1116 | ||
1117 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1118 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
43646c9d | 1119 | |
252b5132 RH |
1120 | symndx = rel->r_symndx; |
1121 | loc = contents + rel->r_vaddr - input_section->vma; | |
1122 | ||
1123 | /* FIXME: check bounds on r_type */ | |
1124 | howto = ppc_coff_howto_table + r_type; | |
1125 | ||
1126 | if (symndx == -1) | |
1127 | { | |
1128 | h = NULL; | |
1129 | sym = NULL; | |
1130 | } | |
1131 | else | |
1132 | { | |
43646c9d | 1133 | h = (struct ppc_coff_link_hash_entry *) |
252b5132 | 1134 | (obj_coff_sym_hashes (input_bfd)[symndx]); |
43646c9d | 1135 | if (h != 0) |
252b5132 RH |
1136 | { |
1137 | HASH_CHECK(h); | |
1138 | } | |
1139 | ||
1140 | sym = syms + symndx; | |
1141 | } | |
1142 | ||
1143 | if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0) | |
1144 | { | |
43646c9d | 1145 | /* An IMGLUE reloc must have a name. Something is very wrong. */ |
c5930ee6 | 1146 | abort (); |
252b5132 RH |
1147 | } |
1148 | ||
1149 | sec = NULL; | |
1150 | val = 0; | |
1151 | ||
1152 | /* FIXME: PAIR unsupported in the following code */ | |
1153 | if (h == NULL) | |
1154 | { | |
1155 | if (symndx == -1) | |
1156 | sec = bfd_abs_section_ptr; | |
1157 | else | |
1158 | { | |
1159 | sec = sections[symndx]; | |
1160 | val = (sec->output_section->vma | |
1161 | + sec->output_offset | |
1162 | + sym->n_value); | |
1163 | if (! obj_pe (output_bfd)) | |
1164 | val -= sec->vma; | |
1165 | } | |
1166 | } | |
1167 | else | |
1168 | { | |
1169 | HASH_CHECK(h); | |
1170 | ||
1171 | if (h->root.root.type == bfd_link_hash_defined | |
1172 | || h->root.root.type == bfd_link_hash_defweak) | |
1173 | { | |
1174 | sec = h->root.root.u.def.section; | |
1175 | val = (h->root.root.u.def.value | |
1176 | + sec->output_section->vma | |
1177 | + sec->output_offset); | |
1178 | } | |
1179 | else | |
1180 | { | |
1181 | if (! ((*info->callbacks->undefined_symbol) | |
1182 | (info, h->root.root.root.string, input_bfd, input_section, | |
5cc7c785 | 1183 | rel->r_vaddr - input_section->vma, true))) |
252b5132 RH |
1184 | return false; |
1185 | } | |
1186 | } | |
1187 | ||
1188 | rstat = bfd_reloc_ok; | |
43646c9d | 1189 | |
252b5132 RH |
1190 | /* Each case must do its own relocation, setting rstat appropriately */ |
1191 | switch (r_type) | |
1192 | { | |
1193 | default: | |
1194 | (*_bfd_error_handler) | |
1195 | (_("%s: unsupported relocation type 0x%02x"), | |
1196 | bfd_get_filename (input_bfd), r_type); | |
1197 | bfd_set_error (bfd_error_bad_value); | |
1198 | return false; | |
1199 | case IMAGE_REL_PPC_TOCREL16: | |
1200 | { | |
1201 | bfd_vma our_toc_offset; | |
1202 | int fixit; | |
1203 | ||
1204 | DUMP_RELOC2(howto->name, rel); | |
1205 | ||
43646c9d | 1206 | if (toc_section == 0) |
252b5132 | 1207 | { |
43646c9d | 1208 | toc_section = bfd_get_section_by_name (bfd_of_toc_owner, |
252b5132 RH |
1209 | TOC_SECTION_NAME); |
1210 | ||
43646c9d | 1211 | if ( toc_section == NULL ) |
252b5132 | 1212 | { |
43646c9d | 1213 | /* There is no toc section. Something is very wrong. */ |
c5930ee6 | 1214 | abort (); |
252b5132 RH |
1215 | } |
1216 | } | |
1217 | ||
43646c9d | 1218 | /* |
252b5132 RH |
1219 | * Amazing bit tricks present. As we may have seen earlier, we |
1220 | * use the 1 bit to tell us whether or not a toc offset has been | |
1221 | * allocated. Now that they've all been allocated, we will use | |
1222 | * the 1 bit to tell us if we've written this particular toc | |
1223 | * entry out. | |
1224 | */ | |
1225 | fixit = false; | |
1226 | if (h == 0) | |
1227 | { /* it is a file local symbol */ | |
1228 | int *local_toc_table; | |
1229 | const char *name; | |
1230 | ||
1231 | sym = syms + symndx; | |
1232 | name = sym->_n._n_name; | |
1233 | ||
1234 | local_toc_table = obj_coff_local_toc_table(input_bfd); | |
1235 | our_toc_offset = local_toc_table[symndx]; | |
1236 | ||
1237 | if (IS_WRITTEN(our_toc_offset)) | |
1238 | { | |
43646c9d | 1239 | /* if it has been written out, it is marked with the |
252b5132 RH |
1240 | 1 bit. Fix up our offset, but do not write it out |
1241 | again. | |
1242 | */ | |
1243 | MAKE_ADDR_AGAIN(our_toc_offset); | |
1244 | } | |
1245 | else | |
1246 | { | |
1247 | /* write out the toc entry */ | |
43646c9d KH |
1248 | record_toc(toc_section, |
1249 | our_toc_offset, | |
1250 | priv, | |
252b5132 RH |
1251 | strdup(name)); |
1252 | ||
6e301b2b | 1253 | bfd_put_32 (output_bfd, |
252b5132 RH |
1254 | val, |
1255 | toc_section->contents + our_toc_offset); | |
1256 | ||
1257 | MARK_AS_WRITTEN(local_toc_table[symndx]); | |
1258 | fixit = true; | |
1259 | } | |
1260 | } | |
1261 | else | |
1262 | { | |
1263 | const char *name = h->root.root.root.string; | |
1264 | our_toc_offset = h->toc_offset; | |
1265 | ||
43646c9d | 1266 | if ((r_flags & IMAGE_REL_PPC_TOCDEFN) |
252b5132 RH |
1267 | == IMAGE_REL_PPC_TOCDEFN ) |
1268 | { | |
43646c9d KH |
1269 | /* This is unbelievable cheese. Some knowledgable asm |
1270 | hacker has decided to use r2 as a base for loading | |
1271 | a value. He/She does this by setting the tocdefn bit, | |
1272 | and not supplying a toc definition. The behaviour is | |
1273 | then to use the difference between the value of the | |
1274 | symbol and the actual location of the toc as the toc | |
1275 | index. | |
252b5132 RH |
1276 | |
1277 | In fact, what is usually happening is, because the | |
1278 | Import Address Table is mapped immediately following | |
1279 | the toc, some trippy library code trying for speed on | |
43646c9d | 1280 | dll linkage, takes advantage of that and considers |
252b5132 RH |
1281 | the IAT to be part of the toc, thus saving a load. |
1282 | */ | |
1283 | ||
43646c9d KH |
1284 | our_toc_offset = val - |
1285 | (toc_section->output_section->vma + | |
252b5132 RH |
1286 | toc_section->output_offset); |
1287 | ||
1288 | /* The size must still fit in a 16bit displacment */ | |
1289 | if (our_toc_offset >= 65535) | |
1290 | { | |
1291 | (*_bfd_error_handler) | |
43646c9d | 1292 | (_("%s: Relocation for %s of %x exceeds Toc size limit"), |
252b5132 RH |
1293 | bfd_get_filename (input_bfd), name, our_toc_offset); |
1294 | bfd_set_error (bfd_error_bad_value); | |
1295 | return false; | |
1296 | } | |
1297 | ||
1298 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); | |
1299 | } | |
1300 | else if (IS_WRITTEN(our_toc_offset)) | |
1301 | { | |
43646c9d | 1302 | /* if it has been written out, it is marked with the |
252b5132 RH |
1303 | 1 bit. Fix up our offset, but do not write it out |
1304 | again. | |
1305 | */ | |
1306 | MAKE_ADDR_AGAIN(our_toc_offset); | |
1307 | } | |
1308 | else | |
1309 | { | |
1310 | record_toc(toc_section, our_toc_offset, pub, strdup(name)); | |
1311 | ||
1312 | /* write out the toc entry */ | |
6e301b2b | 1313 | bfd_put_32 (output_bfd, |
252b5132 RH |
1314 | val, |
1315 | toc_section->contents + our_toc_offset); | |
1316 | ||
1317 | MARK_AS_WRITTEN(h->toc_offset); | |
1318 | /* The tricky part is that this is the address that */ | |
1319 | /* needs a .reloc entry for it */ | |
1320 | fixit = true; | |
1321 | } | |
1322 | } | |
1323 | ||
43646c9d | 1324 | if (fixit && info->base_file) |
252b5132 RH |
1325 | { |
1326 | /* So if this is non pcrelative, and is referenced | |
1327 | to a section or a common symbol, then it needs a reloc */ | |
1328 | ||
1329 | /* relocation to a symbol in a section which | |
43646c9d | 1330 | isn't absolute - we output the address here |
252b5132 RH |
1331 | to a file */ |
1332 | ||
1333 | bfd_vma addr = toc_section->output_section->vma | |
1334 | + toc_section->output_offset + our_toc_offset; | |
43646c9d | 1335 | |
252b5132 RH |
1336 | if (coff_data(output_bfd)->pe) |
1337 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1338 | ||
1339 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1340 | } | |
1341 | ||
252b5132 RH |
1342 | /* FIXME: this test is conservative */ |
1343 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN && | |
1344 | our_toc_offset > toc_section->_raw_size) | |
1345 | { | |
1346 | (*_bfd_error_handler) | |
43646c9d | 1347 | (_("%s: Relocation exceeds allocated TOC (%x)"), |
252b5132 RH |
1348 | bfd_get_filename (input_bfd), |
1349 | toc_section->_raw_size); | |
1350 | bfd_set_error (bfd_error_bad_value); | |
1351 | return false; | |
1352 | } | |
1353 | ||
1354 | /* Now we know the relocation for this toc reference */ | |
1355 | relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT; | |
1356 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1357 | input_bfd, |
1358 | relocation, | |
252b5132 RH |
1359 | loc); |
1360 | } | |
1361 | break; | |
1362 | case IMAGE_REL_PPC_IFGLUE: | |
1363 | { | |
1364 | /* To solve this, we need to know whether or not the symbol */ | |
43646c9d | 1365 | /* appearing on the call instruction is a glue function or not. */ |
252b5132 RH |
1366 | /* A glue function must announce itself via a IMGLUE reloc, and */ |
1367 | /* the reloc contains the required toc restore instruction */ | |
43646c9d | 1368 | |
252b5132 RH |
1369 | bfd_vma x; |
1370 | const char *my_name; | |
1371 | DUMP_RELOC2(howto->name, rel); | |
1372 | ||
1373 | if (h != 0) | |
1374 | { | |
1375 | my_name = h->root.root.root.string; | |
43646c9d | 1376 | if (h->symbol_is_glue == 1) |
252b5132 | 1377 | { |
6e301b2b KH |
1378 | x = bfd_get_32 (input_bfd, loc); |
1379 | bfd_put_32 (input_bfd, h->glue_insn, loc); | |
252b5132 RH |
1380 | } |
1381 | } | |
1382 | } | |
1383 | break; | |
1384 | case IMAGE_REL_PPC_SECREL: | |
1385 | /* Unimplemented: codeview debugging information */ | |
43646c9d KH |
1386 | /* For fast access to the header of the section |
1387 | containing the item. */ | |
252b5132 RH |
1388 | break; |
1389 | case IMAGE_REL_PPC_SECTION: | |
1390 | /* Unimplemented: codeview debugging information */ | |
1391 | /* Is used to indicate that the value should be relative | |
1392 | to the beginning of the section that contains the | |
1393 | symbol */ | |
1394 | break; | |
1395 | case IMAGE_REL_PPC_ABSOLUTE: | |
1396 | { | |
1397 | const char *my_name; | |
1398 | if (h == 0) | |
1399 | my_name = (syms+symndx)->_n._n_name; | |
1400 | else | |
1401 | { | |
1402 | my_name = h->root.root.root.string; | |
1403 | } | |
1404 | ||
6e301b2b | 1405 | fprintf (stderr, |
43646c9d | 1406 | _("Warning: unsupported reloc %s <file %s, section %s>\n"), |
252b5132 RH |
1407 | howto->name, |
1408 | bfd_get_filename(input_bfd), | |
1409 | input_section->name); | |
1410 | ||
6e301b2b | 1411 | fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n", |
252b5132 | 1412 | rel->r_symndx, my_name, (long) rel->r_vaddr, |
43646c9d | 1413 | (unsigned long) rel->r_vaddr); |
252b5132 RH |
1414 | } |
1415 | break; | |
1416 | case IMAGE_REL_PPC_IMGLUE: | |
1417 | { | |
1418 | /* There is nothing to do now. This reloc was noted in the first | |
1419 | pass over the relocs, and the glue instruction extracted */ | |
1420 | const char *my_name; | |
43646c9d | 1421 | if (h->symbol_is_glue == 1) |
252b5132 RH |
1422 | break; |
1423 | my_name = h->root.root.root.string; | |
1424 | ||
1425 | (*_bfd_error_handler) | |
43646c9d | 1426 | (_("%s: Out of order IMGLUE reloc for %s"), |
252b5132 RH |
1427 | bfd_get_filename (input_bfd), my_name); |
1428 | bfd_set_error (bfd_error_bad_value); | |
1429 | return false; | |
1430 | } | |
1431 | ||
1432 | case IMAGE_REL_PPC_ADDR32NB: | |
1433 | { | |
1434 | struct coff_link_hash_entry *myh = 0; | |
1435 | const char *name = 0; | |
1436 | DUMP_RELOC2(howto->name, rel); | |
1437 | ||
1438 | if (strncmp(".idata$2",input_section->name,8) == 0 && first_thunk_address == 0) | |
1439 | { | |
1440 | /* set magic values */ | |
1441 | int idata5offset; | |
1442 | struct coff_link_hash_entry *myh = 0; | |
1443 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1444 | "__idata5_magic__", | |
1445 | false, false, true); | |
43646c9d KH |
1446 | first_thunk_address = myh->root.u.def.value + |
1447 | sec->output_section->vma + | |
1448 | sec->output_offset - | |
252b5132 | 1449 | pe_data(output_bfd)->pe_opthdr.ImageBase; |
43646c9d | 1450 | |
252b5132 RH |
1451 | idata5offset = myh->root.u.def.value; |
1452 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1453 | "__idata6_magic__", | |
1454 | false, false, true); | |
43646c9d | 1455 | |
252b5132 RH |
1456 | thunk_size = myh->root.u.def.value - idata5offset; |
1457 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1458 | "__idata4_magic__", | |
1459 | false, false, true); | |
1460 | import_table_size = myh->root.u.def.value; | |
1461 | } | |
1462 | ||
1463 | if (h == 0) | |
1464 | { /* it is a file local symbol */ | |
1465 | sym = syms + symndx; | |
1466 | name = sym->_n._n_name; | |
1467 | } | |
1468 | else | |
1469 | { | |
1470 | char *target = 0; | |
1471 | ||
1472 | name = h->root.root.root.string; | |
1473 | if (strcmp(".idata$2", name) == 0) | |
1474 | target = "__idata2_magic__"; | |
1475 | else if (strcmp(".idata$4", name) == 0) | |
1476 | target = "__idata4_magic__"; | |
1477 | else if (strcmp(".idata$5", name) == 0) | |
1478 | target = "__idata5_magic__"; | |
1479 | ||
1480 | if (target != 0) | |
1481 | { | |
1482 | myh = 0; | |
1483 | ||
1484 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1485 | target, | |
1486 | false, false, true); | |
43646c9d | 1487 | if (myh == 0) |
252b5132 | 1488 | { |
43646c9d | 1489 | /* Missing magic cookies. Something is very wrong. */ |
c5930ee6 | 1490 | abort (); |
252b5132 | 1491 | } |
43646c9d KH |
1492 | |
1493 | val = myh->root.u.def.value + | |
252b5132 RH |
1494 | sec->output_section->vma + sec->output_offset; |
1495 | if (first_thunk_address == 0) | |
1496 | { | |
1497 | int idata5offset; | |
1498 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1499 | "__idata5_magic__", | |
1500 | false, false, true); | |
43646c9d KH |
1501 | first_thunk_address = myh->root.u.def.value + |
1502 | sec->output_section->vma + | |
1503 | sec->output_offset - | |
252b5132 | 1504 | pe_data(output_bfd)->pe_opthdr.ImageBase; |
43646c9d | 1505 | |
252b5132 RH |
1506 | idata5offset = myh->root.u.def.value; |
1507 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1508 | "__idata6_magic__", | |
1509 | false, false, true); | |
43646c9d | 1510 | |
252b5132 RH |
1511 | thunk_size = myh->root.u.def.value - idata5offset; |
1512 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1513 | "__idata4_magic__", | |
1514 | false, false, true); | |
1515 | import_table_size = myh->root.u.def.value; | |
1516 | } | |
1517 | } | |
1518 | } | |
1519 | ||
1520 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1521 | input_bfd, |
1522 | val - | |
252b5132 RH |
1523 | pe_data(output_bfd)->pe_opthdr.ImageBase, |
1524 | loc); | |
1525 | } | |
1526 | break; | |
1527 | ||
1528 | case IMAGE_REL_PPC_REL24: | |
1529 | DUMP_RELOC2(howto->name, rel); | |
1530 | val -= (input_section->output_section->vma | |
1531 | + input_section->output_offset); | |
1532 | ||
1533 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1534 | input_bfd, |
1535 | val, | |
252b5132 RH |
1536 | loc); |
1537 | break; | |
1538 | case IMAGE_REL_PPC_ADDR16: | |
1539 | case IMAGE_REL_PPC_ADDR24: | |
1540 | case IMAGE_REL_PPC_ADDR32: | |
1541 | DUMP_RELOC2(howto->name, rel); | |
1542 | rstat = _bfd_relocate_contents (howto, | |
43646c9d KH |
1543 | input_bfd, |
1544 | val, | |
252b5132 RH |
1545 | loc); |
1546 | break; | |
1547 | } | |
1548 | ||
1549 | if ( info->base_file ) | |
1550 | { | |
1551 | /* So if this is non pcrelative, and is referenced | |
1552 | to a section or a common symbol, then it needs a reloc */ | |
1553 | if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto)) | |
1554 | { | |
1555 | /* relocation to a symbol in a section which | |
43646c9d | 1556 | isn't absolute - we output the address here |
252b5132 | 1557 | to a file */ |
43646c9d KH |
1558 | bfd_vma addr = rel->r_vaddr |
1559 | - input_section->vma | |
1560 | + input_section->output_offset | |
252b5132 RH |
1561 | + input_section->output_section->vma; |
1562 | ||
1563 | if (coff_data(output_bfd)->pe) | |
1564 | { | |
1565 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1566 | } | |
1567 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1568 | } | |
1569 | } | |
1570 | ||
1571 | switch (rstat) | |
1572 | { | |
1573 | default: | |
1574 | abort (); | |
1575 | case bfd_reloc_ok: | |
1576 | break; | |
1577 | case bfd_reloc_overflow: | |
1578 | { | |
1579 | const char *name; | |
1580 | char buf[SYMNMLEN + 1]; | |
1581 | ||
1582 | if (symndx == -1) | |
1583 | name = "*ABS*"; | |
1584 | else if (h != NULL) | |
1585 | name = h->root.root.root.string; | |
1586 | else if (sym == NULL) | |
1587 | name = "*unknown*"; | |
1588 | else if (sym->_n._n_n._n_zeroes == 0 | |
1589 | && sym->_n._n_n._n_offset != 0) | |
1590 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; | |
1591 | else | |
1592 | { | |
1593 | strncpy (buf, sym->_n._n_name, SYMNMLEN); | |
1594 | buf[SYMNMLEN] = '\0'; | |
1595 | name = buf; | |
1596 | } | |
1597 | ||
1598 | if (! ((*info->callbacks->reloc_overflow) | |
43646c9d | 1599 | (info, name, howto->name, |
252b5132 RH |
1600 | (bfd_vma) 0, input_bfd, |
1601 | input_section, rel->r_vaddr - input_section->vma))) | |
1602 | { | |
1603 | return false; | |
1604 | } | |
1605 | } | |
1606 | } | |
1607 | ||
43646c9d | 1608 | } |
252b5132 RH |
1609 | |
1610 | return true; | |
1611 | } | |
1612 | ||
1613 | #ifdef COFF_IMAGE_WITH_PE | |
1614 | ||
1615 | /* FIXME: BFD should not use global variables. This file is compiled | |
1616 | twice, and these variables are shared. This is confusing and | |
1617 | weird. */ | |
1618 | ||
1619 | long int global_toc_size = 4; | |
1620 | ||
1621 | bfd* bfd_of_toc_owner = 0; | |
1622 | ||
1623 | long int import_table_size; | |
1624 | long int first_thunk_address; | |
1625 | long int thunk_size; | |
1626 | ||
1627 | struct list_ele *head; | |
1628 | struct list_ele *tail; | |
1629 | ||
1630 | static char * | |
1631 | h1 = N_("\n\t\t\tTOC MAPPING\n\n"); | |
1632 | static char * | |
1633 | h2 = N_(" TOC disassembly Comments Name\n"); | |
1634 | static char * | |
1635 | h3 = N_(" Offset spelling (if present)\n"); | |
1636 | ||
1637 | void | |
1638 | dump_toc (vfile) | |
1639 | PTR vfile; | |
1640 | { | |
1641 | FILE *file = (FILE *) vfile; | |
1642 | struct list_ele *t; | |
1643 | ||
6e301b2b KH |
1644 | fprintf (file, _(h1)); |
1645 | fprintf (file, _(h2)); | |
1646 | fprintf (file, _(h3)); | |
252b5132 | 1647 | |
6e301b2b | 1648 | for (t = head; t != 0; t=t->next) |
252b5132 RH |
1649 | { |
1650 | const char *cat = ""; | |
1651 | ||
1652 | if (t->cat == priv) | |
1653 | cat = _("private "); | |
1654 | else if (t->cat == pub) | |
1655 | cat = _("public "); | |
1656 | else if (t->cat == data) | |
1657 | cat = _("data-in-toc "); | |
1658 | ||
1659 | if (t->offset > global_toc_size) | |
1660 | { | |
1661 | if (t->offset <= global_toc_size + thunk_size) | |
1662 | cat = _("IAT reference "); | |
1663 | else | |
1664 | { | |
6e301b2b | 1665 | fprintf (file, |
252b5132 RH |
1666 | _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"), |
1667 | global_toc_size, global_toc_size, thunk_size, thunk_size); | |
1668 | cat = _("Out of bounds!"); | |
1669 | } | |
1670 | } | |
1671 | ||
6e301b2b | 1672 | fprintf (file, |
252b5132 | 1673 | " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768); |
6e301b2b | 1674 | fprintf (file, |
252b5132 RH |
1675 | " %s %s\n", |
1676 | cat, t->name); | |
1677 | ||
1678 | } | |
1679 | ||
6e301b2b | 1680 | fprintf (file, "\n"); |
252b5132 RH |
1681 | } |
1682 | ||
1683 | boolean | |
43646c9d | 1684 | ppc_allocate_toc_section (info) |
5f771d47 | 1685 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1686 | { |
1687 | asection *s; | |
1688 | bfd_byte *foo; | |
1689 | static char test_char = '1'; | |
1690 | ||
1691 | if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */ | |
1692 | return true; | |
1693 | ||
1694 | if (bfd_of_toc_owner == 0) | |
1695 | { | |
43646c9d | 1696 | /* No toc owner? Something is very wrong. */ |
c5930ee6 | 1697 | abort (); |
252b5132 RH |
1698 | } |
1699 | ||
1700 | s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME); | |
43646c9d | 1701 | if (s == NULL) |
252b5132 | 1702 | { |
43646c9d | 1703 | /* No toc section? Something is very wrong. */ |
c5930ee6 | 1704 | abort (); |
252b5132 RH |
1705 | } |
1706 | ||
1707 | foo = (bfd_byte *) bfd_alloc(bfd_of_toc_owner, global_toc_size); | |
1708 | memset(foo, test_char, global_toc_size); | |
1709 | ||
1710 | s->_raw_size = s->_cooked_size = global_toc_size; | |
1711 | s->contents = foo; | |
1712 | ||
1713 | return true; | |
1714 | } | |
1715 | ||
1716 | boolean | |
1717 | ppc_process_before_allocation (abfd, info) | |
1718 | bfd *abfd; | |
1719 | struct bfd_link_info *info; | |
1720 | { | |
1721 | asection *sec; | |
1722 | struct internal_reloc *i, *rel; | |
1723 | ||
1724 | /* here we have a bfd that is to be included on the link. We have a hook | |
43646c9d | 1725 | to do reloc rummaging, before section sizes are nailed down. */ |
252b5132 RH |
1726 | |
1727 | _bfd_coff_get_external_symbols(abfd); | |
1728 | ||
1729 | /* rummage around all the relocs and map the toc */ | |
1730 | sec = abfd->sections; | |
1731 | ||
1732 | if (sec == 0) | |
1733 | { | |
1734 | return true; | |
1735 | } | |
1736 | ||
1737 | for (; sec != 0; sec = sec->next) | |
1738 | { | |
43646c9d | 1739 | if (sec->reloc_count == 0) |
252b5132 RH |
1740 | continue; |
1741 | ||
1742 | /* load the relocs */ | |
1743 | /* FIXME: there may be a storage leak here */ | |
1744 | i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0); | |
43646c9d | 1745 | |
252b5132 | 1746 | if (i == 0) |
c5930ee6 | 1747 | abort (); |
252b5132 | 1748 | |
43646c9d | 1749 | for (rel=i;rel<i+sec->reloc_count;++rel) |
252b5132 RH |
1750 | { |
1751 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
1752 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
1753 | boolean ok = true; | |
1754 | ||
1755 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
1756 | ||
43646c9d | 1757 | switch(r_type) |
252b5132 RH |
1758 | { |
1759 | case IMAGE_REL_PPC_TOCREL16: | |
1760 | /* if TOCDEFN is on, ignore as someone else has allocated the | |
1761 | toc entry */ | |
1762 | if ( (r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN ) | |
43646c9d | 1763 | ok = ppc_record_toc_entry(abfd, info, sec, |
252b5132 RH |
1764 | rel->r_symndx, default_toc); |
1765 | if (!ok) | |
1766 | return false; | |
1767 | break; | |
1768 | case IMAGE_REL_PPC_IMGLUE: | |
1769 | ppc_mark_symbol_as_glue(abfd, rel->r_symndx, rel); | |
1770 | break; | |
1771 | default: | |
1772 | break; | |
1773 | } | |
1774 | } | |
1775 | } | |
1776 | ||
1777 | return true; | |
1778 | } | |
1779 | ||
1780 | #endif | |
1781 | ||
252b5132 RH |
1782 | static bfd_reloc_status_type |
1783 | ppc_refhi_reloc (abfd, | |
1784 | reloc_entry, | |
1785 | symbol, | |
1786 | data, | |
1787 | input_section, | |
1788 | output_bfd, | |
1789 | error_message) | |
5f771d47 ILT |
1790 | bfd *abfd ATTRIBUTE_UNUSED; |
1791 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1792 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1793 | PTR data ATTRIBUTE_UNUSED; | |
1794 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1795 | bfd *output_bfd; |
5f771d47 | 1796 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1797 | { |
1798 | UN_IMPL("REFHI"); | |
1799 | DUMP_RELOC("REFHI",reloc_entry); | |
1800 | ||
1801 | if (output_bfd == (bfd *) NULL) | |
1802 | return bfd_reloc_continue; | |
1803 | ||
1804 | return bfd_reloc_undefined; | |
1805 | } | |
1806 | ||
1807 | #if 0 | |
1808 | ||
1809 | static bfd_reloc_status_type | |
1810 | ppc_reflo_reloc (abfd, | |
1811 | reloc_entry, | |
1812 | symbol, | |
1813 | data, | |
1814 | input_section, | |
1815 | output_bfd, | |
1816 | error_message) | |
1817 | bfd *abfd; | |
1818 | arelent *reloc_entry; | |
1819 | asymbol *symbol; | |
1820 | PTR data; | |
1821 | asection *input_section; | |
1822 | bfd *output_bfd; | |
1823 | char **error_message; | |
1824 | { | |
1825 | UN_IMPL("REFLO"); | |
1826 | DUMP_RELOC("REFLO",reloc_entry); | |
1827 | ||
1828 | if (output_bfd == (bfd *) NULL) | |
1829 | return bfd_reloc_continue; | |
1830 | ||
1831 | return bfd_reloc_undefined; | |
1832 | } | |
1833 | ||
1834 | #endif | |
1835 | ||
1836 | static bfd_reloc_status_type | |
1837 | ppc_pair_reloc (abfd, | |
1838 | reloc_entry, | |
1839 | symbol, | |
1840 | data, | |
1841 | input_section, | |
1842 | output_bfd, | |
1843 | error_message) | |
5f771d47 ILT |
1844 | bfd *abfd ATTRIBUTE_UNUSED; |
1845 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1846 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1847 | PTR data ATTRIBUTE_UNUSED; | |
1848 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1849 | bfd *output_bfd; |
5f771d47 | 1850 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1851 | { |
1852 | UN_IMPL("PAIR"); | |
1853 | DUMP_RELOC("PAIR",reloc_entry); | |
1854 | ||
1855 | if (output_bfd == (bfd *) NULL) | |
1856 | return bfd_reloc_continue; | |
1857 | ||
1858 | return bfd_reloc_undefined; | |
1859 | } | |
252b5132 RH |
1860 | \f |
1861 | static bfd_reloc_status_type | |
1862 | ppc_toc16_reloc (abfd, | |
1863 | reloc_entry, | |
1864 | symbol, | |
1865 | data, | |
1866 | input_section, | |
1867 | output_bfd, | |
1868 | error_message) | |
5f771d47 ILT |
1869 | bfd *abfd ATTRIBUTE_UNUSED; |
1870 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1871 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1872 | PTR data ATTRIBUTE_UNUSED; | |
1873 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1874 | bfd *output_bfd; |
5f771d47 | 1875 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1876 | { |
1877 | UN_IMPL("TOCREL16"); | |
1878 | DUMP_RELOC("TOCREL16",reloc_entry); | |
1879 | ||
1880 | if (output_bfd == (bfd *) NULL) | |
1881 | { | |
1882 | return bfd_reloc_continue; | |
1883 | } | |
1884 | ||
1885 | return bfd_reloc_ok; | |
1886 | } | |
1887 | ||
1888 | #if 0 | |
1889 | ||
1890 | /* ADDR32NB : 32 bit address relative to the virtual origin. */ | |
1891 | /* (On the alpha, this is always a linker generated thunk)*/ | |
1892 | /* (i.e. 32bit addr relative to the image base) */ | |
1893 | /* */ | |
1894 | /* */ | |
1895 | ||
1896 | static bfd_reloc_status_type | |
1897 | ppc_addr32nb_reloc (abfd, | |
1898 | reloc_entry, | |
1899 | symbol, | |
1900 | data, | |
1901 | input_section, | |
1902 | output_bfd, | |
1903 | error_message) | |
1904 | bfd *abfd; | |
1905 | arelent *reloc_entry; | |
1906 | asymbol *symbol; | |
1907 | PTR data; | |
1908 | asection *input_section; | |
1909 | bfd *output_bfd; | |
1910 | char **error_message; | |
1911 | { | |
1912 | UN_IMPL("ADDR32NB"); | |
1913 | DUMP_RELOC("ADDR32NB",reloc_entry); | |
1914 | ||
1915 | return bfd_reloc_ok; | |
1916 | } | |
1917 | ||
1918 | #endif | |
1919 | ||
1920 | static bfd_reloc_status_type | |
1921 | ppc_secrel_reloc (abfd, | |
1922 | reloc_entry, | |
1923 | symbol, | |
1924 | data, | |
1925 | input_section, | |
1926 | output_bfd, | |
1927 | error_message) | |
5f771d47 ILT |
1928 | bfd *abfd ATTRIBUTE_UNUSED; |
1929 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1930 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1931 | PTR data ATTRIBUTE_UNUSED; | |
1932 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1933 | bfd *output_bfd; |
5f771d47 | 1934 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1935 | { |
1936 | UN_IMPL("SECREL"); | |
1937 | DUMP_RELOC("SECREL",reloc_entry); | |
1938 | ||
1939 | if (output_bfd == (bfd *) NULL) | |
1940 | return bfd_reloc_continue; | |
1941 | ||
1942 | return bfd_reloc_ok; | |
1943 | } | |
1944 | ||
1945 | static bfd_reloc_status_type | |
1946 | ppc_section_reloc (abfd, | |
1947 | reloc_entry, | |
1948 | symbol, | |
1949 | data, | |
1950 | input_section, | |
1951 | output_bfd, | |
1952 | error_message) | |
5f771d47 ILT |
1953 | bfd *abfd ATTRIBUTE_UNUSED; |
1954 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1955 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1956 | PTR data ATTRIBUTE_UNUSED; | |
1957 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1958 | bfd *output_bfd; |
5f771d47 | 1959 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1960 | { |
1961 | UN_IMPL("SECTION"); | |
1962 | DUMP_RELOC("SECTION",reloc_entry); | |
1963 | ||
1964 | if (output_bfd == (bfd *) NULL) | |
1965 | return bfd_reloc_continue; | |
1966 | ||
1967 | return bfd_reloc_ok; | |
1968 | } | |
1969 | ||
1970 | static bfd_reloc_status_type | |
1971 | ppc_imglue_reloc (abfd, | |
1972 | reloc_entry, | |
1973 | symbol, | |
1974 | data, | |
1975 | input_section, | |
1976 | output_bfd, | |
1977 | error_message) | |
5f771d47 ILT |
1978 | bfd *abfd ATTRIBUTE_UNUSED; |
1979 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
1980 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1981 | PTR data ATTRIBUTE_UNUSED; | |
1982 | asection *input_section ATTRIBUTE_UNUSED; | |
252b5132 | 1983 | bfd *output_bfd; |
5f771d47 | 1984 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1985 | { |
1986 | UN_IMPL("IMGLUE"); | |
1987 | DUMP_RELOC("IMGLUE",reloc_entry); | |
1988 | ||
1989 | if (output_bfd == (bfd *) NULL) | |
1990 | return bfd_reloc_continue; | |
1991 | ||
1992 | return bfd_reloc_ok; | |
1993 | } | |
252b5132 | 1994 | \f |
252b5132 | 1995 | #define MAX_RELOC_INDEX \ |
c5930ee6 | 1996 | (sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]) - 1) |
252b5132 | 1997 | |
252b5132 | 1998 | /* FIXME: There is a possiblity that when we read in a reloc from a file, |
43646c9d | 1999 | that there are some bits encoded in the upper portion of the |
252b5132 RH |
2000 | type field. Not yet implemented. |
2001 | */ | |
2002 | static void ppc_coff_rtype2howto PARAMS ((arelent *relent, | |
2003 | struct internal_reloc *internal)); | |
2004 | ||
2005 | static void | |
2006 | ppc_coff_rtype2howto (relent, internal) | |
2007 | arelent *relent; | |
2008 | struct internal_reloc *internal; | |
43646c9d | 2009 | { |
252b5132 RH |
2010 | |
2011 | /* We can encode one of three things in the type field, aside from the | |
2012 | type: | |
2013 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2014 | value, rather than an addition value | |
2015 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2016 | the branch is expected to be taken or not. | |
2017 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2018 | For now, we just strip this stuff to find the type, and ignore it other | |
2019 | than that. | |
2020 | */ | |
2021 | reloc_howto_type *howto; | |
2022 | unsigned short r_type = EXTRACT_TYPE (internal->r_type); | |
2023 | unsigned short r_flags = EXTRACT_FLAGS(internal->r_type); | |
2024 | unsigned short junk = EXTRACT_JUNK (internal->r_type); | |
2025 | ||
43646c9d KH |
2026 | /* the masking process only slices off the bottom byte for r_type. */ |
2027 | if ( r_type > MAX_RELOC_INDEX ) | |
c5930ee6 | 2028 | abort (); |
252b5132 RH |
2029 | |
2030 | /* check for absolute crap */ | |
2031 | if ( junk != 0 ) | |
c5930ee6 | 2032 | abort (); |
252b5132 | 2033 | |
43646c9d | 2034 | switch(r_type) |
252b5132 RH |
2035 | { |
2036 | case IMAGE_REL_PPC_ADDR16: | |
2037 | case IMAGE_REL_PPC_REL24: | |
2038 | case IMAGE_REL_PPC_ADDR24: | |
2039 | case IMAGE_REL_PPC_ADDR32: | |
2040 | case IMAGE_REL_PPC_IFGLUE: | |
2041 | case IMAGE_REL_PPC_ADDR32NB: | |
2042 | case IMAGE_REL_PPC_SECTION: | |
2043 | case IMAGE_REL_PPC_SECREL: | |
2044 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2045 | howto = ppc_coff_howto_table + r_type; | |
2046 | break; | |
2047 | case IMAGE_REL_PPC_IMGLUE: | |
2048 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2049 | howto = ppc_coff_howto_table + r_type; | |
2050 | break; | |
2051 | case IMAGE_REL_PPC_TOCREL16: | |
2052 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, internal); | |
2053 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) | |
2054 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; | |
2055 | else | |
2056 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; | |
2057 | break; | |
2058 | default: | |
6e301b2b | 2059 | fprintf (stderr, |
252b5132 RH |
2060 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), |
2061 | ppc_coff_howto_table[r_type].name, | |
2062 | r_type); | |
43646c9d | 2063 | howto = ppc_coff_howto_table + r_type; |
252b5132 RH |
2064 | break; |
2065 | } | |
43646c9d | 2066 | |
252b5132 | 2067 | relent->howto = howto; |
43646c9d | 2068 | |
252b5132 RH |
2069 | } |
2070 | ||
2071 | static reloc_howto_type * | |
2072 | coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
5f771d47 | 2073 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2074 | asection *sec; |
2075 | struct internal_reloc *rel; | |
5f771d47 ILT |
2076 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED; |
2077 | struct internal_syment *sym ATTRIBUTE_UNUSED; | |
252b5132 RH |
2078 | bfd_vma *addendp; |
2079 | { | |
2080 | reloc_howto_type *howto; | |
2081 | ||
2082 | /* We can encode one of three things in the type field, aside from the | |
2083 | type: | |
2084 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction | |
2085 | value, rather than an addition value | |
2086 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that | |
2087 | the branch is expected to be taken or not. | |
2088 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file | |
2089 | For now, we just strip this stuff to find the type, and ignore it other | |
2090 | than that. | |
2091 | */ | |
2092 | ||
2093 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); | |
2094 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); | |
2095 | unsigned short junk = EXTRACT_JUNK (rel->r_type); | |
2096 | ||
43646c9d KH |
2097 | /* the masking process only slices off the bottom byte for r_type. */ |
2098 | if ( r_type > MAX_RELOC_INDEX ) | |
c5930ee6 | 2099 | abort (); |
43646c9d | 2100 | |
252b5132 RH |
2101 | /* check for absolute crap */ |
2102 | if ( junk != 0 ) | |
c5930ee6 | 2103 | abort (); |
43646c9d KH |
2104 | |
2105 | switch(r_type) | |
252b5132 RH |
2106 | { |
2107 | case IMAGE_REL_PPC_ADDR32NB: | |
2108 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2109 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; | |
2110 | howto = ppc_coff_howto_table + r_type; | |
2111 | break; | |
2112 | case IMAGE_REL_PPC_TOCREL16: | |
2113 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2114 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) | |
2115 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; | |
2116 | else | |
2117 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; | |
2118 | break; | |
2119 | case IMAGE_REL_PPC_ADDR16: | |
2120 | case IMAGE_REL_PPC_REL24: | |
2121 | case IMAGE_REL_PPC_ADDR24: | |
2122 | case IMAGE_REL_PPC_ADDR32: | |
2123 | case IMAGE_REL_PPC_IFGLUE: | |
2124 | case IMAGE_REL_PPC_SECTION: | |
2125 | case IMAGE_REL_PPC_SECREL: | |
2126 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2127 | howto = ppc_coff_howto_table + r_type; | |
2128 | break; | |
2129 | case IMAGE_REL_PPC_IMGLUE: | |
2130 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); | |
2131 | howto = ppc_coff_howto_table + r_type; | |
2132 | break; | |
2133 | default: | |
6e301b2b | 2134 | fprintf (stderr, |
252b5132 RH |
2135 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), |
2136 | ppc_coff_howto_table[r_type].name, | |
2137 | r_type); | |
2138 | howto = ppc_coff_howto_table + r_type; | |
2139 | break; | |
2140 | } | |
43646c9d | 2141 | |
252b5132 RH |
2142 | return howto; |
2143 | } | |
2144 | ||
252b5132 RH |
2145 | /* a cheesy little macro to make the code a little more readable */ |
2146 | #define HOW2MAP(bfd_rtype,ppc_rtype) \ | |
2147 | case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype] | |
2148 | ||
2149 | static reloc_howto_type *ppc_coff_reloc_type_lookup | |
2150 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
2151 | ||
2152 | static reloc_howto_type * | |
2153 | ppc_coff_reloc_type_lookup (abfd, code) | |
5f771d47 | 2154 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2155 | bfd_reloc_code_real_type code; |
2156 | { | |
2157 | switch (code) | |
2158 | { | |
2159 | HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE); | |
2160 | HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE); | |
2161 | HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16); | |
2162 | HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24); | |
2163 | HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24); | |
2164 | HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16); | |
2165 | HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN); | |
2166 | HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32); | |
2167 | HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB); | |
43646c9d | 2168 | default: |
252b5132 RH |
2169 | return NULL; |
2170 | } | |
2171 | /*NOTREACHED*/ | |
2172 | } | |
2173 | ||
2174 | #undef HOW2MAP | |
252b5132 | 2175 | \f |
43646c9d | 2176 | /* Tailor coffcode.h -- macro heaven. */ |
252b5132 RH |
2177 | |
2178 | #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst) | |
2179 | ||
2180 | #ifndef COFF_IMAGE_WITH_PE | |
2181 | static void ppc_coff_swap_sym_in_hook PARAMS ((bfd *, PTR, PTR)); | |
2182 | #endif | |
2183 | ||
2184 | /* We use the special COFF backend linker, with our own special touch. */ | |
2185 | ||
2186 | #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup | |
2187 | #define coff_rtype_to_howto coff_ppc_rtype_to_howto | |
2188 | #define coff_relocate_section coff_ppc_relocate_section | |
43646c9d | 2189 | #define coff_bfd_final_link ppc_bfd_coff_final_link |
252b5132 RH |
2190 | |
2191 | #ifndef COFF_IMAGE_WITH_PE | |
650f5dd8 | 2192 | /* FIXME: This no longer works. */ |
252b5132 RH |
2193 | #define coff_swap_sym_in_hook ppc_coff_swap_sym_in_hook |
2194 | #endif | |
2195 | ||
2196 | #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;} | |
2197 | ||
2198 | #define COFF_PAGE_SIZE 0x1000 | |
2199 | ||
650f5dd8 ILT |
2200 | /* FIXME: This controls some code that used to be in peicode.h and is |
2201 | now in peigen.c. It will not control the code in peigen.c. If | |
2202 | anybody wants to get this working, you will need to fix that. */ | |
252b5132 RH |
2203 | #define POWERPC_LE_PE |
2204 | ||
a50f8417 ILT |
2205 | #define COFF_SECTION_ALIGNMENT_ENTRIES \ |
2206 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \ | |
2207 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ | |
2208 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \ | |
2209 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ | |
2210 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \ | |
2211 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
2212 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \ | |
2213 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ | |
2214 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \ | |
2215 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \ | |
2216 | { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \ | |
2217 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 } | |
2218 | ||
252b5132 | 2219 | #include "coffcode.h" |
252b5132 | 2220 | \f |
252b5132 RH |
2221 | #ifndef COFF_IMAGE_WITH_PE |
2222 | /* FIXME: | |
43646c9d | 2223 | What we're trying to do here is allocate a toc section (early), and attach |
252b5132 RH |
2224 | it to the last bfd to be processed. This avoids the problem of having a toc |
2225 | written out before all files have been processed. This code allocates | |
2226 | a toc section for every file, and records the last one seen. There are | |
2227 | at least two problems with this approach: | |
2228 | 1. We allocate whole bunches of toc sections that are ignored, but at | |
2229 | at least we will not allocate a toc if no .toc is present. | |
2230 | 2. It's not clear to me that being the last bfd read necessarily means | |
2231 | that you are the last bfd closed. | |
2232 | 3. Doing it on a "swap in" hook depends on when the "swap in" is called, | |
2233 | and how often, etc. It's not clear to me that there isn't a hole here. | |
2234 | */ | |
2235 | ||
2236 | static void | |
2237 | ppc_coff_swap_sym_in_hook (abfd, ext1, in1) | |
2238 | bfd *abfd; | |
5f771d47 | 2239 | PTR ext1 ATTRIBUTE_UNUSED; |
252b5132 RH |
2240 | PTR in1; |
2241 | { | |
2242 | struct internal_syment *in = (struct internal_syment *)in1; | |
2243 | ||
2244 | if (bfd_of_toc_owner != 0) /* we already have a toc, so go home */ | |
2245 | return; | |
2246 | ||
2247 | if (strcmp(in->_n._n_name, ".toc") == 0) | |
2248 | { | |
2249 | flagword flags; | |
2250 | register asection *s; | |
2251 | ||
2252 | s = bfd_get_section_by_name ( abfd , TOC_SECTION_NAME); | |
43646c9d | 2253 | if (s != NULL) |
252b5132 RH |
2254 | { |
2255 | return; | |
2256 | } | |
2257 | ||
2258 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ; | |
2259 | ||
2260 | s = bfd_make_section (abfd, TOC_SECTION_NAME); | |
2261 | ||
2262 | if (s == NULL | |
2263 | || !bfd_set_section_flags (abfd, s, flags) | |
2264 | || !bfd_set_section_alignment (abfd, s, 2)) | |
2265 | { | |
2266 | /* FIXME: set appropriate bfd error */ | |
c5930ee6 | 2267 | abort (); |
252b5132 RH |
2268 | } |
2269 | ||
2270 | /* save the bfd for later allocation */ | |
2271 | bfd_of_toc_owner = abfd; | |
2272 | } | |
2273 | ||
2274 | return; | |
2275 | } | |
2276 | #endif | |
2277 | ||
2278 | #ifndef COFF_IMAGE_WITH_PE | |
2279 | ||
2280 | static boolean ppc_do_last PARAMS ((bfd *)); | |
2281 | static bfd *ppc_get_last PARAMS ((void)); | |
2282 | ||
2283 | static boolean | |
2284 | ppc_do_last (abfd) | |
2285 | bfd *abfd; | |
2286 | { | |
2287 | if (abfd == bfd_of_toc_owner) | |
2288 | return true; | |
2289 | else | |
2290 | return false; | |
2291 | } | |
2292 | ||
2293 | static bfd * | |
2294 | ppc_get_last() | |
2295 | { | |
2296 | return bfd_of_toc_owner; | |
2297 | } | |
2298 | ||
2299 | /* this piece of machinery exists only to guarantee that the bfd that holds | |
43646c9d | 2300 | the toc section is written last. |
252b5132 RH |
2301 | |
2302 | This does depend on bfd_make_section attaching a new section to the | |
43646c9d | 2303 | end of the section list for the bfd. |
252b5132 | 2304 | |
43646c9d KH |
2305 | This is otherwise intended to be functionally the same as |
2306 | cofflink.c:_bfd_coff_final_link(). It is specifically different only | |
2307 | where the POWERPC_LE_PE macro modifies the code. It is left in as a | |
252b5132 RH |
2308 | precise form of comment. krk@cygnus.com |
2309 | */ | |
252b5132 | 2310 | |
252b5132 RH |
2311 | /* Do the final link step. */ |
2312 | ||
2313 | boolean | |
2314 | ppc_bfd_coff_final_link (abfd, info) | |
2315 | bfd *abfd; | |
2316 | struct bfd_link_info *info; | |
2317 | { | |
2318 | bfd_size_type symesz; | |
2319 | struct coff_final_link_info finfo; | |
2320 | boolean debug_merge_allocated; | |
2321 | asection *o; | |
2322 | struct bfd_link_order *p; | |
2323 | size_t max_sym_count; | |
2324 | size_t max_lineno_count; | |
2325 | size_t max_reloc_count; | |
2326 | size_t max_output_reloc_count; | |
2327 | size_t max_contents_size; | |
2328 | file_ptr rel_filepos; | |
2329 | unsigned int relsz; | |
2330 | file_ptr line_filepos; | |
2331 | unsigned int linesz; | |
2332 | bfd *sub; | |
2333 | bfd_byte *external_relocs = NULL; | |
2334 | char strbuf[STRING_SIZE_SIZE]; | |
2335 | ||
2336 | symesz = bfd_coff_symesz (abfd); | |
2337 | ||
2338 | finfo.info = info; | |
2339 | finfo.output_bfd = abfd; | |
2340 | finfo.strtab = NULL; | |
2341 | finfo.section_info = NULL; | |
2342 | finfo.last_file_index = -1; | |
2343 | finfo.last_bf_index = -1; | |
2344 | finfo.internal_syms = NULL; | |
2345 | finfo.sec_ptrs = NULL; | |
2346 | finfo.sym_indices = NULL; | |
2347 | finfo.outsyms = NULL; | |
2348 | finfo.linenos = NULL; | |
2349 | finfo.contents = NULL; | |
2350 | finfo.external_relocs = NULL; | |
2351 | finfo.internal_relocs = NULL; | |
2352 | debug_merge_allocated = false; | |
2353 | ||
2354 | coff_data (abfd)->link_info = info; | |
2355 | ||
2356 | finfo.strtab = _bfd_stringtab_init (); | |
2357 | if (finfo.strtab == NULL) | |
2358 | goto error_return; | |
2359 | ||
2360 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)) | |
2361 | goto error_return; | |
2362 | debug_merge_allocated = true; | |
2363 | ||
2364 | /* Compute the file positions for all the sections. */ | |
2365 | if (! abfd->output_has_begun) | |
2366 | { | |
2367 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
2368 | return false; | |
2369 | } | |
2370 | ||
2371 | /* Count the line numbers and relocation entries required for the | |
2372 | output file. Set the file positions for the relocs. */ | |
2373 | rel_filepos = obj_relocbase (abfd); | |
2374 | relsz = bfd_coff_relsz (abfd); | |
2375 | max_contents_size = 0; | |
2376 | max_lineno_count = 0; | |
2377 | max_reloc_count = 0; | |
2378 | ||
2379 | for (o = abfd->sections; o != NULL; o = o->next) | |
2380 | { | |
2381 | o->reloc_count = 0; | |
2382 | o->lineno_count = 0; | |
2383 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2384 | { | |
2385 | ||
2386 | if (p->type == bfd_indirect_link_order) | |
2387 | { | |
2388 | asection *sec; | |
2389 | ||
2390 | sec = p->u.indirect.section; | |
2391 | ||
2392 | /* Mark all sections which are to be included in the | |
2393 | link. This will normally be every section. We need | |
2394 | to do this so that we can identify any sections which | |
2395 | the linker has decided to not include. */ | |
2396 | sec->linker_mark = true; | |
2397 | ||
2398 | if (info->strip == strip_none | |
2399 | || info->strip == strip_some) | |
2400 | o->lineno_count += sec->lineno_count; | |
2401 | ||
2402 | if (info->relocateable) | |
2403 | o->reloc_count += sec->reloc_count; | |
2404 | ||
2405 | if (sec->_raw_size > max_contents_size) | |
2406 | max_contents_size = sec->_raw_size; | |
2407 | if (sec->lineno_count > max_lineno_count) | |
2408 | max_lineno_count = sec->lineno_count; | |
2409 | if (sec->reloc_count > max_reloc_count) | |
2410 | max_reloc_count = sec->reloc_count; | |
2411 | } | |
2412 | else if (info->relocateable | |
2413 | && (p->type == bfd_section_reloc_link_order | |
2414 | || p->type == bfd_symbol_reloc_link_order)) | |
2415 | ++o->reloc_count; | |
2416 | } | |
2417 | if (o->reloc_count == 0) | |
2418 | o->rel_filepos = 0; | |
2419 | else | |
2420 | { | |
2421 | o->flags |= SEC_RELOC; | |
2422 | o->rel_filepos = rel_filepos; | |
2423 | rel_filepos += o->reloc_count * relsz; | |
2424 | } | |
2425 | } | |
2426 | ||
2427 | /* If doing a relocateable link, allocate space for the pointers we | |
2428 | need to keep. */ | |
2429 | if (info->relocateable) | |
2430 | { | |
2431 | unsigned int i; | |
2432 | ||
2433 | /* We use section_count + 1, rather than section_count, because | |
2434 | the target_index fields are 1 based. */ | |
2435 | finfo.section_info = | |
2436 | ((struct coff_link_section_info *) | |
2437 | bfd_malloc ((abfd->section_count + 1) | |
2438 | * sizeof (struct coff_link_section_info))); | |
2439 | if (finfo.section_info == NULL) | |
2440 | goto error_return; | |
2441 | for (i = 0; i <= abfd->section_count; i++) | |
2442 | { | |
2443 | finfo.section_info[i].relocs = NULL; | |
2444 | finfo.section_info[i].rel_hashes = NULL; | |
2445 | } | |
2446 | } | |
2447 | ||
2448 | /* We now know the size of the relocs, so we can determine the file | |
2449 | positions of the line numbers. */ | |
2450 | line_filepos = rel_filepos; | |
2451 | linesz = bfd_coff_linesz (abfd); | |
2452 | max_output_reloc_count = 0; | |
2453 | for (o = abfd->sections; o != NULL; o = o->next) | |
2454 | { | |
2455 | if (o->lineno_count == 0) | |
2456 | o->line_filepos = 0; | |
2457 | else | |
2458 | { | |
2459 | o->line_filepos = line_filepos; | |
2460 | line_filepos += o->lineno_count * linesz; | |
2461 | } | |
2462 | ||
2463 | if (o->reloc_count != 0) | |
2464 | { | |
2465 | /* We don't know the indices of global symbols until we have | |
2466 | written out all the local symbols. For each section in | |
2467 | the output file, we keep an array of pointers to hash | |
2468 | table entries. Each entry in the array corresponds to a | |
2469 | reloc. When we find a reloc against a global symbol, we | |
2470 | set the corresponding entry in this array so that we can | |
2471 | fix up the symbol index after we have written out all the | |
2472 | local symbols. | |
2473 | ||
2474 | Because of this problem, we also keep the relocs in | |
2475 | memory until the end of the link. This wastes memory, | |
2476 | but only when doing a relocateable link, which is not the | |
2477 | common case. */ | |
2478 | BFD_ASSERT (info->relocateable); | |
2479 | finfo.section_info[o->target_index].relocs = | |
2480 | ((struct internal_reloc *) | |
2481 | bfd_malloc (o->reloc_count * sizeof (struct internal_reloc))); | |
2482 | finfo.section_info[o->target_index].rel_hashes = | |
2483 | ((struct coff_link_hash_entry **) | |
2484 | bfd_malloc (o->reloc_count | |
2485 | * sizeof (struct coff_link_hash_entry *))); | |
2486 | if (finfo.section_info[o->target_index].relocs == NULL | |
2487 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
2488 | goto error_return; | |
2489 | ||
2490 | if (o->reloc_count > max_output_reloc_count) | |
2491 | max_output_reloc_count = o->reloc_count; | |
2492 | } | |
2493 | ||
2494 | /* Reset the reloc and lineno counts, so that we can use them to | |
2495 | count the number of entries we have output so far. */ | |
2496 | o->reloc_count = 0; | |
2497 | o->lineno_count = 0; | |
2498 | } | |
2499 | ||
2500 | obj_sym_filepos (abfd) = line_filepos; | |
2501 | ||
2502 | /* Figure out the largest number of symbols in an input BFD. Take | |
2503 | the opportunity to clear the output_has_begun fields of all the | |
2504 | input BFD's. */ | |
2505 | max_sym_count = 0; | |
2506 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
2507 | { | |
2508 | size_t sz; | |
2509 | ||
2510 | sub->output_has_begun = false; | |
2511 | sz = obj_raw_syment_count (sub); | |
2512 | if (sz > max_sym_count) | |
2513 | max_sym_count = sz; | |
2514 | } | |
2515 | ||
2516 | /* Allocate some buffers used while linking. */ | |
2517 | finfo.internal_syms = ((struct internal_syment *) | |
2518 | bfd_malloc (max_sym_count | |
2519 | * sizeof (struct internal_syment))); | |
2520 | finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count | |
2521 | * sizeof (asection *)); | |
2522 | finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long)); | |
2523 | finfo.outsyms = ((bfd_byte *) | |
2524 | bfd_malloc ((size_t) ((max_sym_count + 1) * symesz))); | |
2525 | finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count | |
2526 | * bfd_coff_linesz (abfd)); | |
2527 | finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); | |
2528 | finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); | |
2529 | if (! info->relocateable) | |
2530 | finfo.internal_relocs = ((struct internal_reloc *) | |
2531 | bfd_malloc (max_reloc_count | |
2532 | * sizeof (struct internal_reloc))); | |
2533 | if ((finfo.internal_syms == NULL && max_sym_count > 0) | |
2534 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) | |
2535 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
2536 | || finfo.outsyms == NULL | |
2537 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
2538 | || (finfo.contents == NULL && max_contents_size > 0) | |
2539 | || (finfo.external_relocs == NULL && max_reloc_count > 0) | |
2540 | || (! info->relocateable | |
2541 | && finfo.internal_relocs == NULL | |
2542 | && max_reloc_count > 0)) | |
2543 | goto error_return; | |
2544 | ||
2545 | /* We now know the position of everything in the file, except that | |
2546 | we don't know the size of the symbol table and therefore we don't | |
2547 | know where the string table starts. We just build the string | |
2548 | table in memory as we go along. We process all the relocations | |
2549 | for a single input file at once. */ | |
2550 | obj_raw_syment_count (abfd) = 0; | |
2551 | ||
2552 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) | |
2553 | { | |
2554 | if (! bfd_coff_start_final_link (abfd, info)) | |
2555 | goto error_return; | |
2556 | } | |
2557 | ||
2558 | for (o = abfd->sections; o != NULL; o = o->next) | |
2559 | { | |
2560 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2561 | { | |
2562 | if (p->type == bfd_indirect_link_order | |
2563 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
2564 | == bfd_target_coff_flavour)) | |
2565 | { | |
2566 | sub = p->u.indirect.section->owner; | |
2567 | #ifdef POWERPC_LE_PE | |
2568 | if (! sub->output_has_begun && !ppc_do_last(sub)) | |
2569 | #else | |
2570 | if (! sub->output_has_begun) | |
2571 | #endif | |
2572 | { | |
2573 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) | |
2574 | goto error_return; | |
2575 | sub->output_has_begun = true; | |
2576 | } | |
2577 | } | |
2578 | else if (p->type == bfd_section_reloc_link_order | |
2579 | || p->type == bfd_symbol_reloc_link_order) | |
2580 | { | |
2581 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) | |
2582 | goto error_return; | |
2583 | } | |
2584 | else | |
2585 | { | |
2586 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
2587 | goto error_return; | |
2588 | } | |
2589 | } | |
2590 | } | |
2591 | ||
2592 | #ifdef POWERPC_LE_PE | |
2593 | { | |
2594 | bfd* last_one = ppc_get_last(); | |
2595 | if (last_one) | |
2596 | { | |
2597 | if (! _bfd_coff_link_input_bfd (&finfo, last_one)) | |
2598 | goto error_return; | |
2599 | } | |
2600 | last_one->output_has_begun = true; | |
2601 | } | |
2602 | #endif | |
2603 | ||
2604 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ | |
2605 | ||
2606 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2607 | debug_merge_allocated = false; | |
2608 | ||
2609 | if (finfo.internal_syms != NULL) | |
2610 | { | |
2611 | free (finfo.internal_syms); | |
2612 | finfo.internal_syms = NULL; | |
2613 | } | |
2614 | if (finfo.sec_ptrs != NULL) | |
2615 | { | |
2616 | free (finfo.sec_ptrs); | |
2617 | finfo.sec_ptrs = NULL; | |
2618 | } | |
2619 | if (finfo.sym_indices != NULL) | |
2620 | { | |
2621 | free (finfo.sym_indices); | |
2622 | finfo.sym_indices = NULL; | |
2623 | } | |
2624 | if (finfo.linenos != NULL) | |
2625 | { | |
2626 | free (finfo.linenos); | |
2627 | finfo.linenos = NULL; | |
2628 | } | |
2629 | if (finfo.contents != NULL) | |
2630 | { | |
2631 | free (finfo.contents); | |
2632 | finfo.contents = NULL; | |
2633 | } | |
2634 | if (finfo.external_relocs != NULL) | |
2635 | { | |
2636 | free (finfo.external_relocs); | |
2637 | finfo.external_relocs = NULL; | |
2638 | } | |
2639 | if (finfo.internal_relocs != NULL) | |
2640 | { | |
2641 | free (finfo.internal_relocs); | |
2642 | finfo.internal_relocs = NULL; | |
2643 | } | |
2644 | ||
2645 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
2646 | index of the first external symbol. Write it out again if | |
2647 | necessary. */ | |
2648 | if (finfo.last_file_index != -1 | |
2649 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)) | |
2650 | { | |
2651 | finfo.last_file.n_value = obj_raw_syment_count (abfd); | |
2652 | bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, | |
2653 | (PTR) finfo.outsyms); | |
2654 | if (bfd_seek (abfd, | |
2655 | (obj_sym_filepos (abfd) | |
2656 | + finfo.last_file_index * symesz), | |
2657 | SEEK_SET) != 0 | |
2658 | || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz) | |
2659 | return false; | |
2660 | } | |
2661 | ||
2662 | /* Write out the global symbols. */ | |
2663 | finfo.failed = false; | |
2664 | coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym, | |
2665 | (PTR) &finfo); | |
2666 | if (finfo.failed) | |
2667 | goto error_return; | |
2668 | ||
2669 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ | |
2670 | if (finfo.outsyms != NULL) | |
2671 | { | |
2672 | free (finfo.outsyms); | |
2673 | finfo.outsyms = NULL; | |
2674 | } | |
2675 | ||
2676 | if (info->relocateable) | |
2677 | { | |
2678 | /* Now that we have written out all the global symbols, we know | |
2679 | the symbol indices to use for relocs against them, and we can | |
2680 | finally write out the relocs. */ | |
2681 | external_relocs = ((bfd_byte *) | |
2682 | bfd_malloc (max_output_reloc_count * relsz)); | |
2683 | if (external_relocs == NULL) | |
2684 | goto error_return; | |
2685 | ||
2686 | for (o = abfd->sections; o != NULL; o = o->next) | |
2687 | { | |
2688 | struct internal_reloc *irel; | |
2689 | struct internal_reloc *irelend; | |
2690 | struct coff_link_hash_entry **rel_hash; | |
2691 | bfd_byte *erel; | |
2692 | ||
2693 | if (o->reloc_count == 0) | |
2694 | continue; | |
2695 | ||
2696 | irel = finfo.section_info[o->target_index].relocs; | |
2697 | irelend = irel + o->reloc_count; | |
2698 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
2699 | erel = external_relocs; | |
2700 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
2701 | { | |
2702 | if (*rel_hash != NULL) | |
2703 | { | |
2704 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
2705 | irel->r_symndx = (*rel_hash)->indx; | |
2706 | } | |
2707 | bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); | |
2708 | } | |
2709 | ||
2710 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
2711 | || bfd_write ((PTR) external_relocs, relsz, o->reloc_count, | |
2712 | abfd) != relsz * o->reloc_count) | |
2713 | goto error_return; | |
2714 | } | |
2715 | ||
2716 | free (external_relocs); | |
2717 | external_relocs = NULL; | |
2718 | } | |
2719 | ||
2720 | /* Free up the section information. */ | |
2721 | if (finfo.section_info != NULL) | |
2722 | { | |
2723 | unsigned int i; | |
2724 | ||
2725 | for (i = 0; i < abfd->section_count; i++) | |
2726 | { | |
2727 | if (finfo.section_info[i].relocs != NULL) | |
2728 | free (finfo.section_info[i].relocs); | |
2729 | if (finfo.section_info[i].rel_hashes != NULL) | |
2730 | free (finfo.section_info[i].rel_hashes); | |
2731 | } | |
2732 | free (finfo.section_info); | |
2733 | finfo.section_info = NULL; | |
2734 | } | |
2735 | ||
2736 | /* If we have optimized stabs strings, output them. */ | |
2737 | if (coff_hash_table (info)->stab_info != NULL) | |
2738 | { | |
2739 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) | |
2740 | return false; | |
2741 | } | |
2742 | ||
2743 | /* Write out the string table. */ | |
2744 | if (obj_raw_syment_count (abfd) != 0) | |
2745 | { | |
2746 | if (bfd_seek (abfd, | |
2747 | (obj_sym_filepos (abfd) | |
2748 | + obj_raw_syment_count (abfd) * symesz), | |
2749 | SEEK_SET) != 0) | |
2750 | return false; | |
2751 | ||
2752 | #if STRING_SIZE_SIZE == 4 | |
2753 | bfd_h_put_32 (abfd, | |
2754 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
2755 | (bfd_byte *) strbuf); | |
2756 | #else | |
2757 | #error Change bfd_h_put_32 | |
2758 | #endif | |
2759 | ||
2760 | if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE) | |
2761 | return false; | |
2762 | ||
2763 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) | |
2764 | return false; | |
2765 | } | |
2766 | ||
2767 | _bfd_stringtab_free (finfo.strtab); | |
2768 | ||
2769 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
2770 | not try to write out the symbols. */ | |
2771 | bfd_get_symcount (abfd) = 0; | |
2772 | ||
2773 | return true; | |
2774 | ||
2775 | error_return: | |
2776 | if (debug_merge_allocated) | |
2777 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2778 | if (finfo.strtab != NULL) | |
2779 | _bfd_stringtab_free (finfo.strtab); | |
2780 | if (finfo.section_info != NULL) | |
2781 | { | |
2782 | unsigned int i; | |
2783 | ||
2784 | for (i = 0; i < abfd->section_count; i++) | |
2785 | { | |
2786 | if (finfo.section_info[i].relocs != NULL) | |
2787 | free (finfo.section_info[i].relocs); | |
2788 | if (finfo.section_info[i].rel_hashes != NULL) | |
2789 | free (finfo.section_info[i].rel_hashes); | |
2790 | } | |
2791 | free (finfo.section_info); | |
2792 | } | |
2793 | if (finfo.internal_syms != NULL) | |
2794 | free (finfo.internal_syms); | |
2795 | if (finfo.sec_ptrs != NULL) | |
2796 | free (finfo.sec_ptrs); | |
2797 | if (finfo.sym_indices != NULL) | |
2798 | free (finfo.sym_indices); | |
2799 | if (finfo.outsyms != NULL) | |
2800 | free (finfo.outsyms); | |
2801 | if (finfo.linenos != NULL) | |
2802 | free (finfo.linenos); | |
2803 | if (finfo.contents != NULL) | |
2804 | free (finfo.contents); | |
2805 | if (finfo.external_relocs != NULL) | |
2806 | free (finfo.external_relocs); | |
2807 | if (finfo.internal_relocs != NULL) | |
2808 | free (finfo.internal_relocs); | |
2809 | if (external_relocs != NULL) | |
2810 | free (external_relocs); | |
2811 | return false; | |
2812 | } | |
2813 | #endif | |
2814 | \f | |
c3c89269 NC |
2815 | /* Forward declaration for use by alternative_target field. */ |
2816 | #ifdef TARGET_BIG_SYM | |
2817 | extern const bfd_target TARGET_BIG_SYM; | |
2818 | #endif | |
2819 | ||
43646c9d | 2820 | /* The transfer vectors that lead the outside world to all of the above. */ |
252b5132 RH |
2821 | |
2822 | #ifdef TARGET_LITTLE_SYM | |
c3c89269 | 2823 | const bfd_target TARGET_LITTLE_SYM = |
252b5132 RH |
2824 | { |
2825 | TARGET_LITTLE_NAME, /* name or coff-arm-little */ | |
2826 | bfd_target_coff_flavour, | |
2827 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
2828 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
2829 | ||
2830 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2831 | HAS_LINENO | HAS_DEBUG | | |
2832 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
43646c9d | 2833 | |
252b5132 RH |
2834 | #ifndef COFF_WITH_PE |
2835 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2836 | #else | |
2837 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2838 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2839 | #endif | |
2840 | ||
2841 | 0, /* leading char */ | |
2842 | '/', /* ar_pad_char */ | |
2843 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2844 | ||
2845 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2846 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2847 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
2848 | ||
2849 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2850 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2851 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
43646c9d | 2852 | |
252b5132 RH |
2853 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
2854 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2855 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2856 | bfd_false}, | |
2857 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2858 | _bfd_write_archive_contents, bfd_false}, | |
43646c9d | 2859 | |
252b5132 RH |
2860 | BFD_JUMP_TABLE_GENERIC (coff), |
2861 | BFD_JUMP_TABLE_COPY (coff), | |
2862 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2863 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2864 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2865 | BFD_JUMP_TABLE_RELOCS (coff), | |
2866 | BFD_JUMP_TABLE_WRITE (coff), | |
2867 | BFD_JUMP_TABLE_LINK (coff), | |
2868 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
c3c89269 NC |
2869 | |
2870 | /* Alternative_target. */ | |
2871 | #ifdef TARGET_BIG_SYM | |
2872 | & TARGET_BIG_SYM, | |
2873 | #else | |
2874 | NULL, | |
2875 | #endif | |
43646c9d | 2876 | |
c3c89269 | 2877 | COFF_SWAP_TABLE |
252b5132 RH |
2878 | }; |
2879 | #endif | |
2880 | ||
2881 | #ifdef TARGET_BIG_SYM | |
c3c89269 | 2882 | const bfd_target TARGET_BIG_SYM = |
252b5132 RH |
2883 | { |
2884 | TARGET_BIG_NAME, | |
43646c9d | 2885 | bfd_target_coff_flavour, |
252b5132 RH |
2886 | BFD_ENDIAN_BIG, /* data byte order is big */ |
2887 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
2888 | ||
2889 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ | |
2890 | HAS_LINENO | HAS_DEBUG | | |
2891 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
2892 | ||
2893 | #ifndef COFF_WITH_PE | |
2894 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2895 | #else | |
2896 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2897 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2898 | #endif | |
2899 | ||
2900 | 0, /* leading char */ | |
2901 | '/', /* ar_pad_char */ | |
2902 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2903 | ||
2904 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
2905 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2906 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
2907 | ||
2908 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
2909 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2910 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
2911 | ||
2912 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ | |
2913 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, | |
2914 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ | |
2915 | bfd_false}, | |
2916 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2917 | _bfd_write_archive_contents, bfd_false}, | |
2918 | ||
2919 | BFD_JUMP_TABLE_GENERIC (coff), | |
2920 | BFD_JUMP_TABLE_COPY (coff), | |
2921 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2922 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2923 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2924 | BFD_JUMP_TABLE_RELOCS (coff), | |
2925 | BFD_JUMP_TABLE_WRITE (coff), | |
2926 | BFD_JUMP_TABLE_LINK (coff), | |
2927 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
2928 | ||
c3c89269 NC |
2929 | /* Alternative_target. */ |
2930 | #ifdef TARGET_LITTLE_SYM | |
2931 | & TARGET_LITTLE_SYM, | |
2932 | #else | |
2933 | NULL, | |
2934 | #endif | |
43646c9d | 2935 | |
c3c89269 | 2936 | COFF_SWAP_TABLE |
252b5132 RH |
2937 | }; |
2938 | ||
2939 | #endif |