1 /* BFD back-end for IBM RS/6000 "XCOFF" files.
2 Copyright (C) 1990-2021 Free Software Foundation, Inc.
3 Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore.
4 Archive support from Damon A. Permezel.
5 Contributed by IBM Corporation and Cygnus Support.
6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
23
24 #include "sysdep.h"
25 #include "libiberty.h"
26 #include "bfd.h"
27 #include "bfdlink.h"
28 #include "libbfd.h"
29 #include "coff/internal.h"
30 #include "coff/xcoff.h"
31 #include "coff/rs6000.h"
32 #include "libcoff.h"
33 #include "libxcoff.h"
34
35 extern bool _bfd_xcoff_mkobject (bfd *);
36 extern bool _bfd_xcoff_copy_private_bfd_data (bfd *, bfd *);
37 extern bool _bfd_xcoff_is_local_label_name (bfd *, const char *);
38 extern reloc_howto_type *_bfd_xcoff_reloc_type_lookup
39 (bfd *, bfd_reloc_code_real_type);
40 extern bool _bfd_xcoff_slurp_armap (bfd *);
41 extern bfd_cleanup _bfd_xcoff_archive_p (bfd *);
42 extern void * _bfd_xcoff_read_ar_hdr (bfd *);
43 extern bfd *_bfd_xcoff_openr_next_archived_file (bfd *, bfd *);
44 extern int _bfd_xcoff_stat_arch_elt (bfd *, struct stat *);
45 extern bool _bfd_xcoff_write_armap
46 (bfd *, unsigned int, struct orl *, unsigned int, int);
47 extern bool _bfd_xcoff_write_archive_contents (bfd *);
48 extern int _bfd_xcoff_sizeof_headers (bfd *, struct bfd_link_info *);
49 extern void _bfd_xcoff_swap_sym_in (bfd *, void *, void *);
50 extern unsigned int _bfd_xcoff_swap_sym_out (bfd *, void *, void *);
51 extern void _bfd_xcoff_swap_aux_in (bfd *, void *, int, int, int, int, void *);
52 extern unsigned int _bfd_xcoff_swap_aux_out
53 (bfd *, void *, int, int, int, int, void *);
54 static void xcoff_swap_reloc_in (bfd *, void *, void *);
55 static unsigned int xcoff_swap_reloc_out (bfd *, void *, void *);
56
57 /* Forward declare xcoff_rtype2howto for coffcode.h macro. */
58 void xcoff_rtype2howto (arelent *, struct internal_reloc *);
59
60 /* coffcode.h needs these to be defined. */
61 #define RS6000COFF_C 1
62
63 #define SELECT_RELOC(internal, howto) \
64 { \
65 internal.r_type = howto->type; \
66 internal.r_size = \
67 ((howto->complain_on_overflow == complain_overflow_signed \
68 ? 0x80 \
69 : 0) \
70 | (howto->bitsize - 1)); \
71 }
72
73 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
74 #define COFF_LONG_FILENAMES
75 #define NO_COFF_SYMBOLS
76 #define RTYPE2HOWTO(cache_ptr, dst) xcoff_rtype2howto (cache_ptr, dst)
77 #define coff_mkobject _bfd_xcoff_mkobject
78 #define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name
79 #ifdef AIX_CORE
80 extern bfd_cleanup rs6000coff_core_p (bfd *abfd);
81 extern bool rs6000coff_core_file_matches_executable_p
82 (bfd *cbfd, bfd *ebfd);
83 extern char *rs6000coff_core_file_failing_command (bfd *abfd);
84 extern int rs6000coff_core_file_failing_signal (bfd *abfd);
85 #define CORE_FILE_P rs6000coff_core_p
86 #define coff_core_file_failing_command \
87 rs6000coff_core_file_failing_command
88 #define coff_core_file_failing_signal \
89 rs6000coff_core_file_failing_signal
90 #define coff_core_file_matches_executable_p \
91 rs6000coff_core_file_matches_executable_p
92 #define coff_core_file_pid \
93 _bfd_nocore_core_file_pid
94 #else
95 #define CORE_FILE_P _bfd_dummy_target
96 #define coff_core_file_failing_command \
97 _bfd_nocore_core_file_failing_command
98 #define coff_core_file_failing_signal \
99 _bfd_nocore_core_file_failing_signal
100 #define coff_core_file_matches_executable_p \
101 _bfd_nocore_core_file_matches_executable_p
102 #define coff_core_file_pid \
103 _bfd_nocore_core_file_pid
104 #endif
105 #define coff_SWAP_sym_in _bfd_xcoff_swap_sym_in
106 #define coff_SWAP_sym_out _bfd_xcoff_swap_sym_out
107 #define coff_SWAP_aux_in _bfd_xcoff_swap_aux_in
108 #define coff_SWAP_aux_out _bfd_xcoff_swap_aux_out
109 #define coff_swap_reloc_in xcoff_swap_reloc_in
110 #define coff_swap_reloc_out xcoff_swap_reloc_out
111 #define NO_COFF_RELOCS
112
113 #ifndef bfd_pe_print_pdata
114 #define bfd_pe_print_pdata NULL
115 #endif
116
117 #include "coffcode.h"
118
119 /* The main body of code is in coffcode.h. */
120
121 static const char *normalize_filename (bfd *);
122 static bool xcoff_write_armap_old
123 (bfd *, unsigned int, struct orl *, unsigned int, int);
124 static bool xcoff_write_armap_big
125 (bfd *, unsigned int, struct orl *, unsigned int, int);
126 static bool xcoff_write_archive_contents_old (bfd *);
127 static bool xcoff_write_archive_contents_big (bfd *);
128 static void xcoff_swap_ldhdr_in (bfd *, const void *, struct internal_ldhdr *);
129 static void xcoff_swap_ldhdr_out (bfd *, const struct internal_ldhdr *, void *);
130 static void xcoff_swap_ldsym_in (bfd *, const void *, struct internal_ldsym *);
131 static void xcoff_swap_ldsym_out (bfd *, const struct internal_ldsym *, void *);
132 static void xcoff_swap_ldrel_in (bfd *, const void *, struct internal_ldrel *);
133 static void xcoff_swap_ldrel_out (bfd *, const struct internal_ldrel *, void *);
134 static bool xcoff_ppc_relocate_section
135 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
136 struct internal_reloc *, struct internal_syment *, asection **);
137 static bool _bfd_xcoff_put_ldsymbol_name
138 (bfd *, struct xcoff_loader_info *, struct internal_ldsym *, const char *);
139 static asection *xcoff_create_csect_from_smclas
140 (bfd *, union internal_auxent *, const char *);
141 static bool xcoff_is_lineno_count_overflow (bfd *, bfd_vma);
142 static bool xcoff_is_reloc_count_overflow (bfd *, bfd_vma);
143 static bfd_vma xcoff_loader_symbol_offset (bfd *, struct internal_ldhdr *);
144 static bfd_vma xcoff_loader_reloc_offset (bfd *, struct internal_ldhdr *);
145 static bool xcoff_generate_rtinit
146 (bfd *, const char *, const char *, bool);
147 static bool do_pad (bfd *, unsigned int);
148 static bool do_copy (bfd *, bfd *);
149
150 /* Relocation functions */
151 static xcoff_reloc_function xcoff_reloc_type_br;
152
153 static xcoff_complain_function xcoff_complain_overflow_dont_func;
154 static xcoff_complain_function xcoff_complain_overflow_bitfield_func;
155 static xcoff_complain_function xcoff_complain_overflow_signed_func;
156 static xcoff_complain_function xcoff_complain_overflow_unsigned_func;
157
158 xcoff_reloc_function *const
159 xcoff_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION] =
160 {
161 xcoff_reloc_type_pos, /* R_POS (0x00) */
162 xcoff_reloc_type_neg, /* R_NEG (0x01) */
163 xcoff_reloc_type_rel, /* R_REL (0x02) */
164 xcoff_reloc_type_toc, /* R_TOC (0x03) */
165 xcoff_reloc_type_toc, /* R_TRL (0x04) */
166 xcoff_reloc_type_toc, /* R_GL (0x05) */
167 xcoff_reloc_type_toc, /* R_TCL (0x06) */
168 xcoff_reloc_type_fail, /* (0x07) */
169 xcoff_reloc_type_ba, /* R_BA (0x08) */
170 xcoff_reloc_type_fail, /* (0x09) */
171 xcoff_reloc_type_br, /* R_BR (0x0a) */
172 xcoff_reloc_type_fail, /* (0x0b) */
173 xcoff_reloc_type_pos, /* R_RL (0x0c) */
174 xcoff_reloc_type_pos, /* R_RLA (0x0d) */
175 xcoff_reloc_type_fail, /* (0x0e) */
176 xcoff_reloc_type_noop, /* R_REF (0x0f) */
177 xcoff_reloc_type_fail, /* (0x10) */
178 xcoff_reloc_type_fail, /* (0x11) */
179 xcoff_reloc_type_fail, /* (0x12) */
180 xcoff_reloc_type_toc, /* R_TRLA (0x13) */
181 xcoff_reloc_type_fail, /* R_RRTBI (0x14) */
182 xcoff_reloc_type_fail, /* R_RRTBA (0x15) */
183 xcoff_reloc_type_ba, /* R_CAI (0x16) */
184 xcoff_reloc_type_crel, /* R_CREL (0x17) */
185 xcoff_reloc_type_ba, /* R_RBA (0x18) */
186 xcoff_reloc_type_ba, /* R_RBAC (0x19) */
187 xcoff_reloc_type_br, /* R_RBR (0x1a) */
188 xcoff_reloc_type_ba, /* R_RBRC (0x1b) */
189 xcoff_reloc_type_fail, /* (0x1c) */
190 xcoff_reloc_type_fail, /* (0x1d) */
191 xcoff_reloc_type_fail, /* (0x1e) */
192 xcoff_reloc_type_fail, /* (0x1f) */
193 xcoff_reloc_type_tls, /* R_TLS (0x20) */
194 xcoff_reloc_type_tls, /* R_TLS_IE (0x21) */
195 xcoff_reloc_type_tls, /* R_TLS_LD (0x22) */
196 xcoff_reloc_type_tls, /* R_TLS_LE (0x23) */
197 xcoff_reloc_type_tls, /* R_TLSM (0x24) */
198 xcoff_reloc_type_tls, /* R_TLSML (0x25) */
199 xcoff_reloc_type_fail, /* (0x26) */
200 xcoff_reloc_type_fail, /* (0x27) */
201 xcoff_reloc_type_fail, /* (0x28) */
202 xcoff_reloc_type_fail, /* (0x29) */
203 xcoff_reloc_type_fail, /* (0x2a) */
204 xcoff_reloc_type_fail, /* (0x2b) */
205 xcoff_reloc_type_fail, /* (0x2c) */
206 xcoff_reloc_type_fail, /* (0x2d) */
207 xcoff_reloc_type_fail, /* (0x2e) */
208 xcoff_reloc_type_fail, /* (0x2f) */
209 xcoff_reloc_type_toc, /* R_TOCU (0x30) */
210 xcoff_reloc_type_toc, /* R_TOCL (0x31) */
211 };
212
213 xcoff_complain_function *const
214 xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW] =
215 {
216 xcoff_complain_overflow_dont_func,
217 xcoff_complain_overflow_bitfield_func,
218 xcoff_complain_overflow_signed_func,
219 xcoff_complain_overflow_unsigned_func,
220 };
221
222 /* Information about one member of an archive. */
223 struct member_layout
224 {
225 /* The archive member that this structure describes. */
226 bfd *member;
227
228 /* The number of bytes of padding that must be inserted before the
229 start of the member in order to ensure that the section contents
230 are correctly aligned. */
231 unsigned int leading_padding;
232
233 /* The offset of MEMBER from the start of the archive (i.e. the end
234 of the leading padding). */
235 file_ptr offset;
236
237 /* The normalized name of MEMBER. */
238 const char *name;
239
240 /* The length of NAME, without padding. */
241 bfd_size_type namlen;
242
243 /* The length of NAME, with padding. */
244 bfd_size_type padded_namlen;
245
246 /* The size of MEMBER's header, including the name and magic sequence. */
247 bfd_size_type header_size;
248
249 /* The size of the MEMBER's contents. */
250 bfd_size_type contents_size;
251
252 /* The number of bytes of padding that must be inserted after MEMBER
253 in order to preserve even alignment. */
254 bfd_size_type trailing_padding;
255 };
256
257 /* A structure used for iterating over the members of an archive. */
258 struct archive_iterator
259 {
260 /* The archive itself. */
261 bfd *archive;
262
263 /* Information about the current archive member. */
264 struct member_layout current;
265
266 /* Information about the next archive member. MEMBER is null if there
267 are no more archive members, in which case OFFSET is the offset of
268 the first unused byte. */
269 struct member_layout next;
270 };
271
272 /* Initialize INFO so that it describes member MEMBER of archive ARCHIVE.
273 OFFSET is the even-padded offset of MEMBER, not including any leading
274 padding needed for section alignment. */
275
276 static void
member_layout_init(struct member_layout * info,bfd * archive,bfd * member,file_ptr offset)277 member_layout_init (struct member_layout *info, bfd *archive,
278 bfd *member, file_ptr offset)
279 {
280 info->member = member;
281 info->leading_padding = 0;
282 if (member)
283 {
284 info->name = normalize_filename (member);
285 info->namlen = strlen (info->name);
286 info->padded_namlen = info->namlen + (info->namlen & 1);
287 if (xcoff_big_format_p (archive))
288 info->header_size = SIZEOF_AR_HDR_BIG;
289 else
290 info->header_size = SIZEOF_AR_HDR;
291 info->header_size += info->padded_namlen + SXCOFFARFMAG;
292 info->contents_size = arelt_size (member);
293 info->trailing_padding = info->contents_size & 1;
294
295 if (bfd_check_format (member, bfd_object)
296 && bfd_get_flavour (member) == bfd_target_xcoff_flavour
297 && (member->flags & DYNAMIC) != 0)
298 info->leading_padding
299 = (-(offset + info->header_size)
300 & ((1 << bfd_xcoff_text_align_power (member)) - 1));
301 }
302 info->offset = offset + info->leading_padding;
303 }
304
305 /* Set up ITERATOR to iterate through archive ARCHIVE. */
306
307 static void
archive_iterator_begin(struct archive_iterator * iterator,bfd * archive)308 archive_iterator_begin (struct archive_iterator *iterator,
309 bfd *archive)
310 {
311 iterator->archive = archive;
312 member_layout_init (&iterator->next, archive, archive->archive_head,
313 xcoff_big_format_p (archive)
314 ? SIZEOF_AR_FILE_HDR_BIG
315 : SIZEOF_AR_FILE_HDR);
316 }
317
318 /* Make ITERATOR visit the first unvisited archive member. Return true
319 on success; return false if all members have been visited. */
320
321 static bool
archive_iterator_next(struct archive_iterator * iterator)322 archive_iterator_next (struct archive_iterator *iterator)
323 {
324 if (!iterator->next.member)
325 return false;
326
327 iterator->current = iterator->next;
328 member_layout_init (&iterator->next, iterator->archive,
329 iterator->current.member->archive_next,
330 iterator->current.offset
331 + iterator->current.header_size
332 + iterator->current.contents_size
333 + iterator->current.trailing_padding);
334 return true;
335 }
336
337 /* We use our own tdata type. Its first field is the COFF tdata type,
338 so the COFF routines are compatible. */
339
340 bool
_bfd_xcoff_mkobject(bfd * abfd)341 _bfd_xcoff_mkobject (bfd *abfd)
342 {
343 coff_data_type *coff;
344 size_t amt = sizeof (struct xcoff_tdata);
345
346 abfd->tdata.xcoff_obj_data = (struct xcoff_tdata *) bfd_zalloc (abfd, amt);
347 if (abfd->tdata.xcoff_obj_data == NULL)
348 return false;
349 coff = coff_data (abfd);
350 coff->symbols = (coff_symbol_type *) NULL;
351 coff->conversion_table = (unsigned int *) NULL;
352 coff->raw_syments = (struct coff_ptr_struct *) NULL;
353 coff->relocbase = 0;
354
355 xcoff_data (abfd)->modtype = ('1' << 8) | 'L';
356
357 /* We set cputype to -1 to indicate that it has not been
358 initialized. */
359 xcoff_data (abfd)->cputype = -1;
360
361 xcoff_data (abfd)->csects = NULL;
362 xcoff_data (abfd)->debug_indices = NULL;
363
364 /* text section alignment is different than the default */
365 bfd_xcoff_text_align_power (abfd) = 2;
366
367 return true;
368 }
369
370 /* Copy XCOFF data from one BFD to another. */
371
372 bool
_bfd_xcoff_copy_private_bfd_data(bfd * ibfd,bfd * obfd)373 _bfd_xcoff_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
374 {
375 struct xcoff_tdata *ix, *ox;
376 asection *sec;
377
378 if (ibfd->xvec != obfd->xvec)
379 return true;
380 ix = xcoff_data (ibfd);
381 ox = xcoff_data (obfd);
382 ox->full_aouthdr = ix->full_aouthdr;
383 ox->toc = ix->toc;
384 if (ix->sntoc == 0)
385 ox->sntoc = 0;
386 else
387 {
388 sec = coff_section_from_bfd_index (ibfd, ix->sntoc);
389 if (sec == NULL)
390 ox->sntoc = 0;
391 else
392 ox->sntoc = sec->output_section->target_index;
393 }
394 if (ix->snentry == 0)
395 ox->snentry = 0;
396 else
397 {
398 sec = coff_section_from_bfd_index (ibfd, ix->snentry);
399 if (sec == NULL)
400 ox->snentry = 0;
401 else
402 ox->snentry = sec->output_section->target_index;
403 }
404 bfd_xcoff_text_align_power (obfd) = bfd_xcoff_text_align_power (ibfd);
405 bfd_xcoff_data_align_power (obfd) = bfd_xcoff_data_align_power (ibfd);
406 ox->modtype = ix->modtype;
407 ox->cputype = ix->cputype;
408 ox->maxdata = ix->maxdata;
409 ox->maxstack = ix->maxstack;
410 return true;
411 }
412
413 /* I don't think XCOFF really has a notion of local labels based on
414 name. This will mean that ld -X doesn't actually strip anything.
415 The AIX native linker does not have a -X option, and it ignores the
416 -x option. */
417
418 bool
_bfd_xcoff_is_local_label_name(bfd * abfd ATTRIBUTE_UNUSED,const char * name ATTRIBUTE_UNUSED)419 _bfd_xcoff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
420 const char *name ATTRIBUTE_UNUSED)
421 {
422 return false;
423 }
424
425 void
_bfd_xcoff_swap_sym_in(bfd * abfd,void * ext1,void * in1)426 _bfd_xcoff_swap_sym_in (bfd *abfd, void * ext1, void * in1)
427 {
428 SYMENT *ext = (SYMENT *)ext1;
429 struct internal_syment * in = (struct internal_syment *)in1;
430
431 if (ext->e.e_name[0] != 0)
432 {
433 memcpy (in->_n._n_name, ext->e.e_name, SYMNMLEN);
434 }
435 else
436 {
437 in->_n._n_n._n_zeroes = 0;
438 in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e.e.e_offset);
439 }
440
441 in->n_value = H_GET_32 (abfd, ext->e_value);
442 in->n_scnum = (short) H_GET_16 (abfd, ext->e_scnum);
443 in->n_type = H_GET_16 (abfd, ext->e_type);
444 in->n_sclass = H_GET_8 (abfd, ext->e_sclass);
445 in->n_numaux = H_GET_8 (abfd, ext->e_numaux);
446 }
447
448 unsigned int
_bfd_xcoff_swap_sym_out(bfd * abfd,void * inp,void * extp)449 _bfd_xcoff_swap_sym_out (bfd *abfd, void * inp, void * extp)
450 {
451 struct internal_syment *in = (struct internal_syment *)inp;
452 SYMENT *ext =(SYMENT *)extp;
453
454 if (in->_n._n_name[0] != 0)
455 {
456 memcpy (ext->e.e_name, in->_n._n_name, SYMNMLEN);
457 }
458 else
459 {
460 H_PUT_32 (abfd, 0, ext->e.e.e_zeroes);
461 H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e.e.e_offset);
462 }
463
464 H_PUT_32 (abfd, in->n_value, ext->e_value);
465 H_PUT_16 (abfd, in->n_scnum, ext->e_scnum);
466 H_PUT_16 (abfd, in->n_type, ext->e_type);
467 H_PUT_8 (abfd, in->n_sclass, ext->e_sclass);
468 H_PUT_8 (abfd, in->n_numaux, ext->e_numaux);
469 return bfd_coff_symesz (abfd);
470 }
471
472 void
_bfd_xcoff_swap_aux_in(bfd * abfd,void * ext1,int type ATTRIBUTE_UNUSED,int in_class,int indx,int numaux,void * in1)473 _bfd_xcoff_swap_aux_in (bfd *abfd, void * ext1, int type ATTRIBUTE_UNUSED,
474 int in_class, int indx, int numaux, void * in1)
475 {
476 AUXENT * ext = (AUXENT *)ext1;
477 union internal_auxent *in = (union internal_auxent *)in1;
478
479 switch (in_class)
480 {
481 default:
482 _bfd_error_handler
483 /* xgettext: c-format */
484 (_("%pB: unsupported swap_aux_in for storage class %#x"),
485 abfd, (unsigned int) in_class);
486 bfd_set_error (bfd_error_bad_value);
487 break;
488
489 case C_FILE:
490 if (ext->x_file.x_n.x_fname[0] == 0)
491 {
492 in->x_file.x_n.x_zeroes = 0;
493 in->x_file.x_n.x_offset =
494 H_GET_32 (abfd, ext->x_file.x_n.x_n.x_offset);
495 }
496 else
497 memcpy (in->x_file.x_fname, ext->x_file.x_n.x_fname, FILNMLEN);
498 break;
499
500 /* RS/6000 "csect" auxents.
501 There is always a CSECT auxiliary entry. But functions can
502 have FCN ones too. In this case, CSECT is always the last
503 one. */
504 case C_EXT:
505 case C_AIX_WEAKEXT:
506 case C_HIDEXT:
507 if (indx + 1 == numaux)
508 {
509 in->x_csect.x_scnlen.l = H_GET_32 (abfd, ext->x_csect.x_scnlen);
510 in->x_csect.x_parmhash = H_GET_32 (abfd, ext->x_csect.x_parmhash);
511 in->x_csect.x_snhash = H_GET_16 (abfd, ext->x_csect.x_snhash);
512 /* We don't have to hack bitfields in x_smtyp because it's
513 defined by shifts-and-ands, which are equivalent on all
514 byte orders. */
515 in->x_csect.x_smtyp = H_GET_8 (abfd, ext->x_csect.x_smtyp);
516 in->x_csect.x_smclas = H_GET_8 (abfd, ext->x_csect.x_smclas);
517 in->x_csect.x_stab = H_GET_32 (abfd, ext->x_csect.x_stab);
518 in->x_csect.x_snstab = H_GET_16 (abfd, ext->x_csect.x_snstab);
519 }
520 else
521 {
522 /* x_exptr isn't supported. */
523 in->x_sym.x_misc.x_fsize
524 = H_GET_32 (abfd, ext->x_fcn.x_fsize);
525 in->x_sym.x_fcnary.x_fcn.x_lnnoptr
526 = H_GET_32 (abfd, ext->x_fcn.x_lnnoptr);
527 in->x_sym.x_fcnary.x_fcn.x_endndx.l
528 = H_GET_32 (abfd, ext->x_fcn.x_endndx);
529 }
530 break;
531
532 case C_STAT:
533 in->x_scn.x_scnlen = H_GET_32 (abfd, ext->x_scn.x_scnlen);
534 in->x_scn.x_nreloc = H_GET_16 (abfd, ext->x_scn.x_nreloc);
535 in->x_scn.x_nlinno = H_GET_16 (abfd, ext->x_scn.x_nlinno);
536 /* PE defines some extra fields; we zero them out for
537 safety. */
538 in->x_scn.x_checksum = 0;
539 in->x_scn.x_associated = 0;
540 in->x_scn.x_comdat = 0;
541 break;
542
543 case C_BLOCK:
544 case C_FCN:
545 in->x_sym.x_misc.x_lnsz.x_lnno
546 = H_GET_32 (abfd, ext->x_sym.x_lnno);
547 break;
548
549 case C_DWARF:
550 in->x_sect.x_scnlen = H_GET_32 (abfd, ext->x_sect.x_scnlen);
551 in->x_sect.x_nreloc = H_GET_32 (abfd, ext->x_sect.x_nreloc);
552 break;
553
554 }
555 }
556
557 unsigned int
_bfd_xcoff_swap_aux_out(bfd * abfd,void * inp,int type ATTRIBUTE_UNUSED,int in_class,int indx,int numaux,void * extp)558 _bfd_xcoff_swap_aux_out (bfd *abfd, void * inp, int type ATTRIBUTE_UNUSED,
559 int in_class, int indx, int numaux, void * extp)
560 {
561 union internal_auxent *in = (union internal_auxent *)inp;
562 AUXENT *ext = (AUXENT *)extp;
563
564 memset (ext, 0, bfd_coff_auxesz (abfd));
565 switch (in_class)
566 {
567 default:
568 _bfd_error_handler
569 /* xgettext: c-format */
570 (_("%pB: unsupported swap_aux_out for storage class %#x"),
571 abfd, (unsigned int) in_class);
572 bfd_set_error (bfd_error_bad_value);
573 break;
574
575 case C_FILE:
576 if (in->x_file.x_fname[0] == 0)
577 {
578 H_PUT_32 (abfd, 0, ext->x_file.x_n.x_n.x_zeroes);
579 H_PUT_32 (abfd, in->x_file.x_n.x_offset,
580 ext->x_file.x_n.x_n.x_offset);
581 }
582 else
583 memcpy (ext->x_file.x_n.x_fname, in->x_file.x_fname, FILNMLEN);
584 break;
585
586 /* RS/6000 "csect" auxents */
587 case C_EXT:
588 case C_AIX_WEAKEXT:
589 case C_HIDEXT:
590 if (indx + 1 == numaux)
591 {
592 H_PUT_32 (abfd, in->x_csect.x_scnlen.l, ext->x_csect.x_scnlen);
593 H_PUT_32 (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
594 H_PUT_16 (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
595 /* We don't have to hack bitfields in x_smtyp because it's
596 defined by shifts-and-ands, which are equivalent on all
597 byte orders. */
598 H_PUT_8 (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
599 H_PUT_8 (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
600 H_PUT_32 (abfd, in->x_csect.x_stab, ext->x_csect.x_stab);
601 H_PUT_16 (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab);
602 }
603 else
604 {
605 H_PUT_32 (abfd, in->x_sym.x_misc.x_fsize, ext->x_fcn.x_fsize);
606 H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr,
607 ext->x_fcn.x_lnnoptr);
608 H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l,
609 ext->x_fcn.x_endndx);
610 }
611 break;
612
613 case C_STAT:
614 H_PUT_32 (abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen);
615 H_PUT_16 (abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc);
616 H_PUT_16 (abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno);
617 break;
618
619 case C_BLOCK:
620 case C_FCN:
621 H_PUT_32 (abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext->x_sym.x_lnno);
622 break;
623
624 case C_DWARF:
625 H_PUT_32 (abfd, in->x_sect.x_scnlen, ext->x_sect.x_scnlen);
626 H_PUT_32 (abfd, in->x_sect.x_nreloc, ext->x_sect.x_nreloc);
627 break;
628 }
629
630 return bfd_coff_auxesz (abfd);
631 }
632
633 /* The XCOFF reloc table.
634 XCOFF relocations aren't defined only by the type field r_type.
635 The bitsize and whether they are signed or not, are defined by
636 r_size field. Thus, it's complicated to create a constant
637 table reference every possible relocation.
638 This table contains the "default" relocation and few modified
639 relocations what were already there. It's enough when
640 xcoff_rtype2howto is called.
641 For relocations from an input bfd to an output bfd, the default
642 relocation is retrieved and when manually adapted.
643
644 For now, it seems to be enought. */
645
646 reloc_howto_type xcoff_howto_table[] =
647 {
648 /* 0x00: Standard 32 bit relocation. */
649 HOWTO (R_POS, /* type */
650 0, /* rightshift */
651 2, /* size (0 = byte, 1 = short, 2 = long) */
652 32, /* bitsize */
653 false, /* pc_relative */
654 0, /* bitpos */
655 complain_overflow_bitfield, /* complain_on_overflow */
656 0, /* special_function */
657 "R_POS", /* name */
658 true, /* partial_inplace */
659 0xffffffff, /* src_mask */
660 0xffffffff, /* dst_mask */
661 false), /* pcrel_offset */
662
663 /* 0x01: 32 bit relocation, but store negative value. */
664 HOWTO (R_NEG, /* type */
665 0, /* rightshift */
666 -2, /* size (0 = byte, 1 = short, 2 = long) */
667 32, /* bitsize */
668 false, /* pc_relative */
669 0, /* bitpos */
670 complain_overflow_bitfield, /* complain_on_overflow */
671 0, /* special_function */
672 "R_NEG", /* name */
673 true, /* partial_inplace */
674 0xffffffff, /* src_mask */
675 0xffffffff, /* dst_mask */
676 false), /* pcrel_offset */
677
678 /* 0x02: 32 bit PC relative relocation. */
679 HOWTO (R_REL, /* type */
680 0, /* rightshift */
681 2, /* size (0 = byte, 1 = short, 2 = long) */
682 32, /* bitsize */
683 true, /* pc_relative */
684 0, /* bitpos */
685 complain_overflow_signed, /* complain_on_overflow */
686 0, /* special_function */
687 "R_REL", /* name */
688 true, /* partial_inplace */
689 0xffffffff, /* src_mask */
690 0xffffffff, /* dst_mask */
691 false), /* pcrel_offset */
692
693 /* 0x03: 16 bit TOC relative relocation. */
694 HOWTO (R_TOC, /* type */
695 0, /* rightshift */
696 1, /* size (0 = byte, 1 = short, 2 = long) */
697 16, /* bitsize */
698 false, /* pc_relative */
699 0, /* bitpos */
700 complain_overflow_bitfield, /* complain_on_overflow */
701 0, /* special_function */
702 "R_TOC", /* name */
703 true, /* partial_inplace */
704 0, /* src_mask */
705 0xffff, /* dst_mask */
706 false), /* pcrel_offset */
707
708 /* 0x04: Same as R_TOC */
709 HOWTO (R_TRL, /* type */
710 0, /* rightshift */
711 1, /* size (0 = byte, 1 = short, 2 = long) */
712 16, /* bitsize */
713 false, /* pc_relative */
714 0, /* bitpos */
715 complain_overflow_bitfield, /* complain_on_overflow */
716 0, /* special_function */
717 "R_TRL", /* name */
718 true, /* partial_inplace */
719 0, /* src_mask */
720 0xffff, /* dst_mask */
721 false), /* pcrel_offset */
722
723 /* 0x05: External TOC relative symbol. */
724 HOWTO (R_GL, /* type */
725 0, /* rightshift */
726 1, /* size (0 = byte, 1 = short, 2 = long) */
727 16, /* bitsize */
728 false, /* pc_relative */
729 0, /* bitpos */
730 complain_overflow_bitfield, /* complain_on_overflow */
731 0, /* special_function */
732 "R_GL", /* name */
733 true, /* partial_inplace */
734 0, /* src_mask */
735 0xffff, /* dst_mask */
736 false), /* pcrel_offset */
737
738 /* 0x06: Local TOC relative symbol. */
739 HOWTO (R_TCL, /* type */
740 0, /* rightshift */
741 1, /* size (0 = byte, 1 = short, 2 = long) */
742 16, /* bitsize */
743 false, /* pc_relative */
744 0, /* bitpos */
745 complain_overflow_bitfield, /* complain_on_overflow */
746 0, /* special_function */
747 "R_TCL", /* name */
748 true, /* partial_inplace */
749 0, /* src_mask */
750 0xffff, /* dst_mask */
751 false), /* pcrel_offset */
752
753 EMPTY_HOWTO (7),
754
755 /* 0x08: Same as R_RBA. */
756 HOWTO (R_BA, /* type */
757 0, /* rightshift */
758 2, /* size (0 = byte, 1 = short, 2 = long) */
759 26, /* bitsize */
760 false, /* pc_relative */
761 0, /* bitpos */
762 complain_overflow_bitfield, /* complain_on_overflow */
763 0, /* special_function */
764 "R_BA_26", /* name */
765 true, /* partial_inplace */
766 0x03fffffc, /* src_mask */
767 0x03fffffc, /* dst_mask */
768 false), /* pcrel_offset */
769
770 EMPTY_HOWTO (9),
771
772 /* 0x0a: Same as R_RBR. */
773 HOWTO (R_BR, /* type */
774 0, /* rightshift */
775 2, /* size (0 = byte, 1 = short, 2 = long) */
776 26, /* bitsize */
777 true, /* pc_relative */
778 0, /* bitpos */
779 complain_overflow_signed, /* complain_on_overflow */
780 0, /* special_function */
781 "R_BR", /* name */
782 true, /* partial_inplace */
783 0x03fffffc, /* src_mask */
784 0x03fffffc, /* dst_mask */
785 false), /* pcrel_offset */
786
787 EMPTY_HOWTO (0xb),
788
789 /* 0x0c: Same as R_POS. */
790 HOWTO (R_RL, /* type */
791 0, /* rightshift */
792 2, /* size (0 = byte, 1 = short, 2 = long) */
793 32, /* bitsize */
794 false, /* pc_relative */
795 0, /* bitpos */
796 complain_overflow_bitfield, /* complain_on_overflow */
797 0, /* special_function */
798 "R_RL", /* name */
799 true, /* partial_inplace */
800 0xffffffff, /* src_mask */
801 0xffffffff, /* dst_mask */
802 false), /* pcrel_offset */
803
804 /* 0x0d: Same as R_POS. */
805 HOWTO (R_RLA, /* type */
806 0, /* rightshift */
807 2, /* size (0 = byte, 1 = short, 2 = long) */
808 32, /* bitsize */
809 false, /* pc_relative */
810 0, /* bitpos */
811 complain_overflow_bitfield, /* complain_on_overflow */
812 0, /* special_function */
813 "R_RLA", /* name */
814 true, /* partial_inplace */
815 0xffffffff, /* src_mask */
816 0xffffffff, /* dst_mask */
817 false), /* pcrel_offset */
818
819 EMPTY_HOWTO (0xe),
820
821 /* 0x0f: Non-relocating reference. Bitsize is 1 so that r_rsize is 0. */
822 HOWTO (R_REF, /* type */
823 0, /* rightshift */
824 0, /* size (0 = byte, 1 = short, 2 = long) */
825 1, /* bitsize */
826 false, /* pc_relative */
827 0, /* bitpos */
828 complain_overflow_dont, /* complain_on_overflow */
829 0, /* special_function */
830 "R_REF", /* name */
831 false, /* partial_inplace */
832 0, /* src_mask */
833 0, /* dst_mask */
834 false), /* pcrel_offset */
835
836 EMPTY_HOWTO (0x10),
837 EMPTY_HOWTO (0x11),
838 EMPTY_HOWTO (0x12),
839
840 /* 0x13: Same as R_TOC. */
841 HOWTO (R_TRLA, /* type */
842 0, /* rightshift */
843 1, /* size (0 = byte, 1 = short, 2 = long) */
844 16, /* bitsize */
845 false, /* pc_relative */
846 0, /* bitpos */
847 complain_overflow_bitfield, /* complain_on_overflow */
848 0, /* special_function */
849 "R_TRLA", /* name */
850 true, /* partial_inplace */
851 0, /* src_mask */
852 0xffff, /* dst_mask */
853 false), /* pcrel_offset */
854
855 /* 0x14: Modifiable relative branch. */
856 HOWTO (R_RRTBI, /* type */
857 1, /* rightshift */
858 2, /* size (0 = byte, 1 = short, 2 = long) */
859 32, /* bitsize */
860 false, /* pc_relative */
861 0, /* bitpos */
862 complain_overflow_bitfield, /* complain_on_overflow */
863 0, /* special_function */
864 "R_RRTBI", /* name */
865 true, /* partial_inplace */
866 0xffffffff, /* src_mask */
867 0xffffffff, /* dst_mask */
868 false), /* pcrel_offset */
869
870 /* 0x15: Modifiable absolute branch. */
871 HOWTO (R_RRTBA, /* type */
872 1, /* rightshift */
873 2, /* size (0 = byte, 1 = short, 2 = long) */
874 32, /* bitsize */
875 false, /* pc_relative */
876 0, /* bitpos */
877 complain_overflow_bitfield, /* complain_on_overflow */
878 0, /* special_function */
879 "R_RRTBA", /* name */
880 true, /* partial_inplace */
881 0xffffffff, /* src_mask */
882 0xffffffff, /* dst_mask */
883 false), /* pcrel_offset */
884
885 /* 0x16: Modifiable call absolute indirect. */
886 HOWTO (R_CAI, /* type */
887 0, /* rightshift */
888 1, /* size (0 = byte, 1 = short, 2 = long) */
889 16, /* bitsize */
890 false, /* pc_relative */
891 0, /* bitpos */
892 complain_overflow_bitfield, /* complain_on_overflow */
893 0, /* special_function */
894 "R_CAI", /* name */
895 true, /* partial_inplace */
896 0xffff, /* src_mask */
897 0xffff, /* dst_mask */
898 false), /* pcrel_offset */
899
900 /* 0x17: Modifiable call relative. */
901 HOWTO (R_CREL, /* type */
902 0, /* rightshift */
903 1, /* size (0 = byte, 1 = short, 2 = long) */
904 16, /* bitsize */
905 false, /* pc_relative */
906 0, /* bitpos */
907 complain_overflow_bitfield, /* complain_on_overflow */
908 0, /* special_function */
909 "R_CREL", /* name */
910 true, /* partial_inplace */
911 0xffff, /* src_mask */
912 0xffff, /* dst_mask */
913 false), /* pcrel_offset */
914
915 /* 0x18: Modifiable branch absolute. */
916 HOWTO (R_RBA, /* type */
917 0, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 26, /* bitsize */
920 false, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_bitfield, /* complain_on_overflow */
923 0, /* special_function */
924 "R_RBA", /* name */
925 true, /* partial_inplace */
926 0x03fffffc, /* src_mask */
927 0x03fffffc, /* dst_mask */
928 false), /* pcrel_offset */
929
930 /* 0x19: Modifiable branch absolute. */
931 HOWTO (R_RBAC, /* type */
932 0, /* rightshift */
933 2, /* size (0 = byte, 1 = short, 2 = long) */
934 32, /* bitsize */
935 false, /* pc_relative */
936 0, /* bitpos */
937 complain_overflow_bitfield, /* complain_on_overflow */
938 0, /* special_function */
939 "R_RBAC", /* name */
940 true, /* partial_inplace */
941 0xffffffff, /* src_mask */
942 0xffffffff, /* dst_mask */
943 false), /* pcrel_offset */
944
945 /* 0x1a: Modifiable branch relative. */
946 HOWTO (R_RBR, /* type */
947 0, /* rightshift */
948 2, /* size (0 = byte, 1 = short, 2 = long) */
949 26, /* bitsize */
950 false, /* pc_relative */
951 0, /* bitpos */
952 complain_overflow_signed, /* complain_on_overflow */
953 0, /* special_function */
954 "R_RBR_26", /* name */
955 true, /* partial_inplace */
956 0x03fffffc, /* src_mask */
957 0x03fffffc, /* dst_mask */
958 false), /* pcrel_offset */
959
960 /* 0x1b: Modifiable branch absolute. */
961 HOWTO (R_RBRC, /* type */
962 0, /* rightshift */
963 1, /* size (0 = byte, 1 = short, 2 = long) */
964 16, /* bitsize */
965 false, /* pc_relative */
966 0, /* bitpos */
967 complain_overflow_bitfield, /* complain_on_overflow */
968 0, /* special_function */
969 "R_RBRC", /* name */
970 true, /* partial_inplace */
971 0xffff, /* src_mask */
972 0xffff, /* dst_mask */
973 false), /* pcrel_offset */
974
975 /* 0x1c: 16 bit Non modifiable absolute branch. */
976 HOWTO (R_BA, /* type */
977 0, /* rightshift */
978 1, /* size (0 = byte, 1 = short, 2 = long) */
979 16, /* bitsize */
980 false, /* pc_relative */
981 0, /* bitpos */
982 complain_overflow_bitfield, /* complain_on_overflow */
983 0, /* special_function */
984 "R_BA_16", /* name */
985 true, /* partial_inplace */
986 0xfffc, /* src_mask */
987 0xfffc, /* dst_mask */
988 false), /* pcrel_offset */
989
990 /* 0x1d: Modifiable branch relative. */
991 HOWTO (R_RBR, /* type */
992 0, /* rightshift */
993 1, /* size (0 = byte, 1 = short, 2 = long) */
994 16, /* bitsize */
995 true, /* pc_relative */
996 0, /* bitpos */
997 complain_overflow_signed, /* complain_on_overflow */
998 0, /* special_function */
999 "R_RBR_16", /* name */
1000 true, /* partial_inplace */
1001 0xfffc, /* src_mask */
1002 0xfffc, /* dst_mask */
1003 false), /* pcrel_offset */
1004
1005 /* 0x1e: Modifiable branch relative. */
1006 HOWTO (R_RBA, /* type */
1007 0, /* rightshift */
1008 1, /* size (0 = byte, 1 = short, 2 = long) */
1009 16, /* bitsize */
1010 false, /* pc_relative */
1011 0, /* bitpos */
1012 complain_overflow_signed, /* complain_on_overflow */
1013 0, /* special_function */
1014 "R_RBA_16", /* name */
1015 true, /* partial_inplace */
1016 0xffff, /* src_mask */
1017 0xffff, /* dst_mask */
1018 false), /* pcrel_offset */
1019
1020 EMPTY_HOWTO (0x1f),
1021
1022 /* 0x20: General-dynamic TLS relocation. */
1023 HOWTO (R_TLS, /* type */
1024 0, /* rightshift */
1025 2, /* size (0 = byte, 1 = short, 2 = long) */
1026 32, /* bitsize */
1027 false, /* pc_relative */
1028 0, /* bitpos */
1029 complain_overflow_bitfield, /* complain_on_overflow */
1030 0, /* special_function */
1031 "R_TLS", /* name */
1032 true, /* partial_inplace */
1033 0xffffffff, /* src_mask */
1034 0xffffffff, /* dst_mask */
1035 false), /* pcrel_offset */
1036
1037 /* 0x21: Initial-exec TLS relocation. */
1038 HOWTO (R_TLS_IE, /* type */
1039 0, /* rightshift */
1040 2, /* size (0 = byte, 1 = short, 2 = long) */
1041 32, /* bitsize */
1042 false, /* pc_relative */
1043 0, /* bitpos */
1044 complain_overflow_bitfield, /* complain_on_overflow */
1045 0, /* special_function */
1046 "R_TLS_IE", /* name */
1047 true, /* partial_inplace */
1048 0xffffffff, /* src_mask */
1049 0xffffffff, /* dst_mask */
1050 false), /* pcrel_offset */
1051
1052 /* 0x22: Local-dynamic TLS relocation. */
1053 HOWTO (R_TLS_LD, /* type */
1054 0, /* rightshift */
1055 2, /* size (0 = byte, 1 = short, 2 = long) */
1056 32, /* bitsize */
1057 false, /* pc_relative */
1058 0, /* bitpos */
1059 complain_overflow_bitfield, /* complain_on_overflow */
1060 0, /* special_function */
1061 "R_TLS_LD", /* name */
1062 true, /* partial_inplace */
1063 0xffffffff, /* src_mask */
1064 0xffffffff, /* dst_mask */
1065 false), /* pcrel_offset */
1066
1067 /* 0x23: Local-exec TLS relocation. */
1068 HOWTO (R_TLS_LE, /* type */
1069 0, /* rightshift */
1070 2, /* size (0 = byte, 1 = short, 2 = long) */
1071 32, /* bitsize */
1072 false, /* pc_relative */
1073 0, /* bitpos */
1074 complain_overflow_bitfield, /* complain_on_overflow */
1075 0, /* special_function */
1076 "R_TLS_LE", /* name */
1077 true, /* partial_inplace */
1078 0xffffffff, /* src_mask */
1079 0xffffffff, /* dst_mask */
1080 false), /* pcrel_offset */
1081
1082 /* 0x24: TLS relocation. */
1083 HOWTO (R_TLSM, /* type */
1084 0, /* rightshift */
1085 2, /* size (0 = byte, 1 = short, 2 = long) */
1086 32, /* bitsize */
1087 false, /* pc_relative */
1088 0, /* bitpos */
1089 complain_overflow_bitfield, /* complain_on_overflow */
1090 0, /* special_function */
1091 "R_TLSM", /* name */
1092 true, /* partial_inplace */
1093 0xffffffff, /* src_mask */
1094 0xffffffff, /* dst_mask */
1095 false), /* pcrel_offset */
1096
1097
1098 /* 0x25: TLS module relocation. */
1099 HOWTO (R_TLSML, /* type */
1100 0, /* rightshift */
1101 2, /* size (0 = byte, 1 = short, 2 = long) */
1102 32, /* bitsize */
1103 false, /* pc_relative */
1104 0, /* bitpos */
1105 complain_overflow_bitfield, /* complain_on_overflow */
1106 0, /* special_function */
1107 "R_TLSM", /* name */
1108 true, /* partial_inplace */
1109 0xffffffff, /* src_mask */
1110 0xffffffff, /* dst_mask */
1111 false), /* pcrel_offset */
1112
1113 EMPTY_HOWTO(0x26),
1114 EMPTY_HOWTO(0x27),
1115 EMPTY_HOWTO(0x28),
1116 EMPTY_HOWTO(0x29),
1117 EMPTY_HOWTO(0x2a),
1118 EMPTY_HOWTO(0x2b),
1119 EMPTY_HOWTO(0x2c),
1120 EMPTY_HOWTO(0x2d),
1121 EMPTY_HOWTO(0x2e),
1122 EMPTY_HOWTO(0x2f),
1123
1124 /* 0x30: High-order 16 bit TOC relative relocation. */
1125 HOWTO (R_TOCU, /* type */
1126 16, /* rightshift */
1127 1, /* size (0 = byte, 1 = short, 2 = long) */
1128 16, /* bitsize */
1129 false, /* pc_relative */
1130 0, /* bitpos */
1131 complain_overflow_bitfield, /* complain_on_overflow */
1132 0, /* special_function */
1133 "R_TOCU", /* name */
1134 true, /* partial_inplace */
1135 0, /* src_mask */
1136 0xffff, /* dst_mask */
1137 false), /* pcrel_offset */
1138
1139 /* 0x31: Low-order 16 bit TOC relative relocation. */
1140 HOWTO (R_TOCL, /* type */
1141 0, /* rightshift */
1142 1, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 false, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 0, /* special_function */
1148 "R_TOCL", /* name */
1149 true, /* partial_inplace */
1150 0, /* src_mask */
1151 0xffff, /* dst_mask */
1152 false), /* pcrel_offset */
1153
1154 };
1155
1156 void
xcoff_rtype2howto(arelent * relent,struct internal_reloc * internal)1157 xcoff_rtype2howto (arelent *relent, struct internal_reloc *internal)
1158 {
1159 if (internal->r_type > R_TOCL)
1160 abort ();
1161
1162 /* Default howto layout works most of the time */
1163 relent->howto = &xcoff_howto_table[internal->r_type];
1164
1165 /* Special case some 16 bit reloc */
1166 if (15 == (internal->r_size & 0x1f))
1167 {
1168 if (R_BA == internal->r_type)
1169 relent->howto = &xcoff_howto_table[0x1c];
1170 else if (R_RBR == internal->r_type)
1171 relent->howto = &xcoff_howto_table[0x1d];
1172 else if (R_RBA == internal->r_type)
1173 relent->howto = &xcoff_howto_table[0x1e];
1174 }
1175
1176 /* The r_size field of an XCOFF reloc encodes the bitsize of the
1177 relocation, as well as indicating whether it is signed or not.
1178 Doublecheck that the relocation information gathered from the
1179 type matches this information. The bitsize is not significant
1180 for R_REF relocs. */
1181 if (relent->howto->dst_mask != 0
1182 && (relent->howto->bitsize
1183 != ((unsigned int) internal->r_size & 0x1f) + 1))
1184 abort ();
1185 }
1186
1187 reloc_howto_type *
_bfd_xcoff_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)1188 _bfd_xcoff_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1189 bfd_reloc_code_real_type code)
1190 {
1191 switch (code)
1192 {
1193 case BFD_RELOC_PPC_B26:
1194 return &xcoff_howto_table[0xa];
1195 case BFD_RELOC_PPC_BA16:
1196 return &xcoff_howto_table[0x1c];
1197 case BFD_RELOC_PPC_BA26:
1198 return &xcoff_howto_table[8];
1199 case BFD_RELOC_PPC_TOC16:
1200 return &xcoff_howto_table[3];
1201 case BFD_RELOC_PPC_TOC16_HI:
1202 return &xcoff_howto_table[0x30];
1203 case BFD_RELOC_PPC_TOC16_LO:
1204 return &xcoff_howto_table[0x31];
1205 case BFD_RELOC_PPC_B16:
1206 return &xcoff_howto_table[0x1d];
1207 case BFD_RELOC_32:
1208 case BFD_RELOC_CTOR:
1209 return &xcoff_howto_table[0];
1210 case BFD_RELOC_NONE:
1211 return &xcoff_howto_table[0xf];
1212 case BFD_RELOC_PPC_NEG:
1213 return &xcoff_howto_table[0x1];
1214 case BFD_RELOC_PPC_TLSGD:
1215 return &xcoff_howto_table[0x20];
1216 case BFD_RELOC_PPC_TLSIE:
1217 return &xcoff_howto_table[0x21];
1218 case BFD_RELOC_PPC_TLSLD:
1219 return &xcoff_howto_table[0x22];
1220 case BFD_RELOC_PPC_TLSLE:
1221 return &xcoff_howto_table[0x23];
1222 case BFD_RELOC_PPC_TLSM:
1223 return &xcoff_howto_table[0x24];
1224 case BFD_RELOC_PPC_TLSML:
1225 return &xcoff_howto_table[0x25];
1226 default:
1227 return NULL;
1228 }
1229 }
1230
1231 static reloc_howto_type *
_bfd_xcoff_reloc_name_lookup(bfd * abfd ATTRIBUTE_UNUSED,const char * r_name)1232 _bfd_xcoff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1233 const char *r_name)
1234 {
1235 unsigned int i;
1236
1237 for (i = 0;
1238 i < sizeof (xcoff_howto_table) / sizeof (xcoff_howto_table[0]);
1239 i++)
1240 if (xcoff_howto_table[i].name != NULL
1241 && strcasecmp (xcoff_howto_table[i].name, r_name) == 0)
1242 return &xcoff_howto_table[i];
1243
1244 return NULL;
1245 }
1246
1247 /* XCOFF archive support. The original version of this code was by
1248 Damon A. Permezel. It was enhanced to permit cross support, and
1249 writing archive files, by Ian Lance Taylor, Cygnus Support.
1250
1251 XCOFF uses its own archive format. Everything is hooked together
1252 with file offset links, so it is possible to rapidly update an
1253 archive in place. Of course, we don't do that. An XCOFF archive
1254 has a real file header, not just an ARMAG string. The structure of
1255 the file header and of each archive header appear below.
1256
1257 An XCOFF archive also has a member table, which is a list of
1258 elements in the archive (you can get that by looking through the
1259 linked list, but you have to read a lot more of the file). The
1260 member table has a normal archive header with an empty name. It is
1261 normally (and perhaps must be) the second to last entry in the
1262 archive. The member table data is almost printable ASCII. It
1263 starts with a 12 character decimal string which is the number of
1264 entries in the table. For each entry it has a 12 character decimal
1265 string which is the offset in the archive of that member. These
1266 entries are followed by a series of null terminated strings which
1267 are the member names for each entry.
1268
1269 Finally, an XCOFF archive has a global symbol table, which is what
1270 we call the armap. The global symbol table has a normal archive
1271 header with an empty name. It is normally (and perhaps must be)
1272 the last entry in the archive. The contents start with a four byte
1273 binary number which is the number of entries. This is followed by
1274 a that many four byte binary numbers; each is the file offset of an
1275 entry in the archive. These numbers are followed by a series of
1276 null terminated strings, which are symbol names.
1277
1278 AIX 4.3 introduced a new archive format which can handle larger
1279 files and also 32- and 64-bit objects in the same archive. The
1280 things said above remain true except that there is now more than
1281 one global symbol table. The one is used to index 32-bit objects,
1282 the other for 64-bit objects.
1283
1284 The new archives (recognizable by the new ARMAG string) has larger
1285 field lengths so that we cannot really share any code. Also we have
1286 to take care that we are not generating the new form of archives
1287 on AIX 4.2 or earlier systems. */
1288
1289 /* PR 21786: The PE/COFF standard does not require NUL termination for any of
1290 the ASCII fields in the archive headers. So in order to be able to extract
1291 numerical values we provide our own versions of strtol and strtoll which
1292 take a maximum length as an additional parameter. Also - just to save space,
1293 we omit the endptr return parameter, since we know that it is never used. */
1294
1295 static long
_bfd_strntol(const char * nptr,int base,unsigned int maxlen)1296 _bfd_strntol (const char * nptr, int base, unsigned int maxlen)
1297 {
1298 char buf[24]; /* Should be enough. */
1299
1300 BFD_ASSERT (maxlen < (sizeof (buf) - 1));
1301
1302 memcpy (buf, nptr, maxlen);
1303 buf[maxlen] = 0;
1304 return strtol (buf, NULL, base);
1305 }
1306
1307 static long long
_bfd_strntoll(const char * nptr,int base,unsigned int maxlen)1308 _bfd_strntoll (const char * nptr, int base, unsigned int maxlen)
1309 {
1310 char buf[32]; /* Should be enough. */
1311
1312 BFD_ASSERT (maxlen < (sizeof (buf) - 1));
1313
1314 memcpy (buf, nptr, maxlen);
1315 buf[maxlen] = 0;
1316 return strtoll (buf, NULL, base);
1317 }
1318
1319 /* Macro to read an ASCII value stored in an archive header field. */
1320 #define GET_VALUE_IN_FIELD(VAR, FIELD, BASE) \
1321 do \
1322 { \
1323 (VAR) = (sizeof (VAR) > sizeof (long) \
1324 ? _bfd_strntoll (FIELD, BASE, sizeof FIELD) \
1325 : _bfd_strntol (FIELD, BASE, sizeof FIELD)); \
1326 } \
1327 while (0)
1328
1329 #define EQ_VALUE_IN_FIELD(VAR, FIELD, BASE) \
1330 (sizeof (VAR) > sizeof (long) \
1331 ? (VAR) == _bfd_strntoll (FIELD, BASE, sizeof FIELD) \
1332 : (VAR) == _bfd_strntol (FIELD, BASE, sizeof FIELD))
1333
1334 /* Read in the armap of an XCOFF archive. */
1335
1336 bool
_bfd_xcoff_slurp_armap(bfd * abfd)1337 _bfd_xcoff_slurp_armap (bfd *abfd)
1338 {
1339 file_ptr off;
1340 size_t namlen;
1341 bfd_size_type sz;
1342 bfd_byte *contents, *cend;
1343 bfd_vma c, i;
1344 carsym *arsym;
1345 bfd_byte *p;
1346
1347 if (xcoff_ardata (abfd) == NULL)
1348 {
1349 abfd->has_armap = false;
1350 return true;
1351 }
1352
1353 if (! xcoff_big_format_p (abfd))
1354 {
1355 /* This is for the old format. */
1356 struct xcoff_ar_hdr hdr;
1357
1358 GET_VALUE_IN_FIELD (off, xcoff_ardata (abfd)->symoff, 10);
1359 if (off == 0)
1360 {
1361 abfd->has_armap = false;
1362 return true;
1363 }
1364
1365 if (bfd_seek (abfd, off, SEEK_SET) != 0)
1366 return false;
1367
1368 /* The symbol table starts with a normal archive header. */
1369 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
1370 != SIZEOF_AR_HDR)
1371 return false;
1372
1373 /* Skip the name (normally empty). */
1374 GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
1375 off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG;
1376 if (bfd_seek (abfd, off, SEEK_CUR) != 0)
1377 return false;
1378
1379 GET_VALUE_IN_FIELD (sz, hdr.size, 10);
1380 if (sz + 1 < 5)
1381 {
1382 bfd_set_error (bfd_error_bad_value);
1383 return false;
1384 }
1385
1386 /* Read in the entire symbol table. */
1387 contents = (bfd_byte *) _bfd_alloc_and_read (abfd, sz + 1, sz);
1388 if (contents == NULL)
1389 return false;
1390
1391 /* Ensure strings are NULL terminated so we don't wander off the
1392 end of the buffer. */
1393 contents[sz] = 0;
1394
1395 /* The symbol table starts with a four byte count. */
1396 c = H_GET_32 (abfd, contents);
1397
1398 if (c >= sz / 4)
1399 {
1400 bfd_set_error (bfd_error_bad_value);
1401 return false;
1402 }
1403
1404 bfd_ardata (abfd)->symdefs =
1405 ((carsym *) bfd_alloc (abfd, c * sizeof (carsym)));
1406 if (bfd_ardata (abfd)->symdefs == NULL)
1407 return false;
1408
1409 /* After the count comes a list of four byte file offsets. */
1410 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 4;
1411 i < c;
1412 ++i, ++arsym, p += 4)
1413 arsym->file_offset = H_GET_32 (abfd, p);
1414 }
1415 else
1416 {
1417 /* This is for the new format. */
1418 struct xcoff_ar_hdr_big hdr;
1419
1420 GET_VALUE_IN_FIELD (off, xcoff_ardata_big (abfd)->symoff, 10);
1421 if (off == 0)
1422 {
1423 abfd->has_armap = false;
1424 return true;
1425 }
1426
1427 if (bfd_seek (abfd, off, SEEK_SET) != 0)
1428 return false;
1429
1430 /* The symbol table starts with a normal archive header. */
1431 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd)
1432 != SIZEOF_AR_HDR_BIG)
1433 return false;
1434
1435 /* Skip the name (normally empty). */
1436 GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
1437 off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG;
1438 if (bfd_seek (abfd, off, SEEK_CUR) != 0)
1439 return false;
1440
1441 GET_VALUE_IN_FIELD (sz, hdr.size, 10);
1442 if (sz + 1 < 9)
1443 {
1444 bfd_set_error (bfd_error_bad_value);
1445 return false;
1446 }
1447
1448 /* Read in the entire symbol table. */
1449 contents = (bfd_byte *) _bfd_alloc_and_read (abfd, sz + 1, sz);
1450 if (contents == NULL)
1451 return false;
1452
1453 /* Ensure strings are NULL terminated so we don't wander off the
1454 end of the buffer. */
1455 contents[sz] = 0;
1456
1457 /* The symbol table starts with an eight byte count. */
1458 c = H_GET_64 (abfd, contents);
1459
1460 if (c >= sz / 8)
1461 {
1462 bfd_set_error (bfd_error_bad_value);
1463 return false;
1464 }
1465
1466 bfd_ardata (abfd)->symdefs =
1467 ((carsym *) bfd_alloc (abfd, c * sizeof (carsym)));
1468 if (bfd_ardata (abfd)->symdefs == NULL)
1469 return false;
1470
1471 /* After the count comes a list of eight byte file offsets. */
1472 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8;
1473 i < c;
1474 ++i, ++arsym, p += 8)
1475 arsym->file_offset = H_GET_64 (abfd, p);
1476 }
1477
1478 /* After the file offsets come null terminated symbol names. */
1479 cend = contents + sz;
1480 for (i = 0, arsym = bfd_ardata (abfd)->symdefs;
1481 i < c;
1482 ++i, ++arsym, p += strlen ((char *) p) + 1)
1483 {
1484 if (p >= cend)
1485 {
1486 bfd_set_error (bfd_error_bad_value);
1487 return false;
1488 }
1489 arsym->name = (char *) p;
1490 }
1491
1492 bfd_ardata (abfd)->symdef_count = c;
1493 abfd->has_armap = true;
1494
1495 return true;
1496 }
1497
1498 /* See if this is an XCOFF archive. */
1499
1500 bfd_cleanup
_bfd_xcoff_archive_p(bfd * abfd)1501 _bfd_xcoff_archive_p (bfd *abfd)
1502 {
1503 struct artdata *tdata_hold;
1504 char magic[SXCOFFARMAG];
1505 size_t amt = SXCOFFARMAG;
1506
1507 if (bfd_bread (magic, amt, abfd) != amt)
1508 {
1509 if (bfd_get_error () != bfd_error_system_call)
1510 bfd_set_error (bfd_error_wrong_format);
1511 return NULL;
1512 }
1513
1514 if (strncmp (magic, XCOFFARMAG, SXCOFFARMAG) != 0
1515 && strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0)
1516 {
1517 bfd_set_error (bfd_error_wrong_format);
1518 return NULL;
1519 }
1520
1521 tdata_hold = bfd_ardata (abfd);
1522
1523 amt = sizeof (struct artdata);
1524 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
1525 if (bfd_ardata (abfd) == (struct artdata *) NULL)
1526 goto error_ret_restore;
1527
1528 /* Cleared by bfd_zalloc above.
1529 bfd_ardata (abfd)->cache = NULL;
1530 bfd_ardata (abfd)->archive_head = NULL;
1531 bfd_ardata (abfd)->symdefs = NULL;
1532 bfd_ardata (abfd)->extended_names = NULL;
1533 bfd_ardata (abfd)->extended_names_size = 0; */
1534
1535 /* Now handle the two formats. */
1536 if (magic[1] != 'b')
1537 {
1538 /* This is the old format. */
1539 struct xcoff_ar_file_hdr hdr;
1540
1541 /* Copy over the magic string. */
1542 memcpy (hdr.magic, magic, SXCOFFARMAG);
1543
1544 /* Now read the rest of the file header. */
1545 amt = SIZEOF_AR_FILE_HDR - SXCOFFARMAG;
1546 if (bfd_bread (&hdr.memoff, amt, abfd) != amt)
1547 {
1548 if (bfd_get_error () != bfd_error_system_call)
1549 bfd_set_error (bfd_error_wrong_format);
1550 goto error_ret;
1551 }
1552
1553 GET_VALUE_IN_FIELD (bfd_ardata (abfd)->first_file_filepos,
1554 hdr.firstmemoff, 10);
1555
1556 amt = SIZEOF_AR_FILE_HDR;
1557 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
1558 if (bfd_ardata (abfd)->tdata == NULL)
1559 goto error_ret;
1560
1561 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR);
1562 }
1563 else
1564 {
1565 /* This is the new format. */
1566 struct xcoff_ar_file_hdr_big hdr;
1567
1568 /* Copy over the magic string. */
1569 memcpy (hdr.magic, magic, SXCOFFARMAG);
1570
1571 /* Now read the rest of the file header. */
1572 amt = SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG;
1573 if (bfd_bread (&hdr.memoff, amt, abfd) != amt)
1574 {
1575 if (bfd_get_error () != bfd_error_system_call)
1576 bfd_set_error (bfd_error_wrong_format);
1577 goto error_ret;
1578 }
1579
1580 bfd_ardata (abfd)->first_file_filepos = bfd_scan_vma (hdr.firstmemoff,
1581 (const char **) 0,
1582 10);
1583
1584 amt = SIZEOF_AR_FILE_HDR_BIG;
1585 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
1586 if (bfd_ardata (abfd)->tdata == NULL)
1587 goto error_ret;
1588
1589 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG);
1590 }
1591
1592 if (! _bfd_xcoff_slurp_armap (abfd))
1593 {
1594 error_ret:
1595 bfd_release (abfd, bfd_ardata (abfd));
1596 error_ret_restore:
1597 bfd_ardata (abfd) = tdata_hold;
1598 return NULL;
1599 }
1600
1601 return _bfd_no_cleanup;
1602 }
1603
1604 /* Read the archive header in an XCOFF archive. */
1605
1606 void *
_bfd_xcoff_read_ar_hdr(bfd * abfd)1607 _bfd_xcoff_read_ar_hdr (bfd *abfd)
1608 {
1609 bfd_size_type namlen;
1610 struct areltdata *ret;
1611 bfd_size_type amt;
1612
1613 if (! xcoff_big_format_p (abfd))
1614 {
1615 struct xcoff_ar_hdr hdr;
1616 struct xcoff_ar_hdr *hdrp;
1617
1618 if (bfd_bread (&hdr, SIZEOF_AR_HDR, abfd) != SIZEOF_AR_HDR)
1619 return NULL;
1620
1621 GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
1622 if (namlen > bfd_get_file_size (abfd))
1623 return NULL;
1624 amt = sizeof (struct areltdata) + SIZEOF_AR_HDR + namlen + 1;
1625 ret = (struct areltdata *) bfd_malloc (amt);
1626 if (ret == NULL)
1627 return ret;
1628
1629 hdrp = (struct xcoff_ar_hdr *) (ret + 1);
1630 memcpy (hdrp, &hdr, SIZEOF_AR_HDR);
1631 if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR, namlen, abfd) != namlen)
1632 {
1633 free (ret);
1634 return NULL;
1635 }
1636 ((char *) hdrp)[SIZEOF_AR_HDR + namlen] = '\0';
1637
1638 ret->arch_header = (char *) hdrp;
1639 GET_VALUE_IN_FIELD (ret->parsed_size, hdr.size, 10);
1640 ret->filename = (char *) hdrp + SIZEOF_AR_HDR;
1641 }
1642 else
1643 {
1644 struct xcoff_ar_hdr_big hdr;
1645 struct xcoff_ar_hdr_big *hdrp;
1646
1647 if (bfd_bread (&hdr, SIZEOF_AR_HDR_BIG, abfd) != SIZEOF_AR_HDR_BIG)
1648 return NULL;
1649
1650 GET_VALUE_IN_FIELD (namlen, hdr.namlen, 10);
1651 if (namlen > bfd_get_file_size (abfd))
1652 return NULL;
1653 amt = sizeof (struct areltdata) + SIZEOF_AR_HDR_BIG + namlen + 1;
1654 ret = (struct areltdata *) bfd_malloc (amt);
1655 if (ret == NULL)
1656 return ret;
1657
1658 hdrp = (struct xcoff_ar_hdr_big *) (ret + 1);
1659 memcpy (hdrp, &hdr, SIZEOF_AR_HDR_BIG);
1660 if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR_BIG, namlen, abfd) != namlen)
1661 {
1662 free (ret);
1663 return NULL;
1664 }
1665 ((char *) hdrp)[SIZEOF_AR_HDR_BIG + namlen] = '\0';
1666
1667 ret->arch_header = (char *) hdrp;
1668 GET_VALUE_IN_FIELD (ret->parsed_size, hdr.size, 10);
1669 ret->filename = (char *) hdrp + SIZEOF_AR_HDR_BIG;
1670 }
1671
1672 /* Skip over the XCOFFARFMAG at the end of the file name. */
1673 if (bfd_seek (abfd, (file_ptr) ((namlen & 1) + SXCOFFARFMAG), SEEK_CUR) != 0)
1674 return NULL;
1675
1676 return ret;
1677 }
1678
1679 /* Open the next element in an XCOFF archive. */
1680
1681 bfd *
_bfd_xcoff_openr_next_archived_file(bfd * archive,bfd * last_file)1682 _bfd_xcoff_openr_next_archived_file (bfd *archive, bfd *last_file)
1683 {
1684 file_ptr filestart;
1685
1686 if (xcoff_ardata (archive) == NULL)
1687 {
1688 bfd_set_error (bfd_error_invalid_operation);
1689 return NULL;
1690 }
1691
1692 if (! xcoff_big_format_p (archive))
1693 {
1694 if (last_file == NULL)
1695 filestart = bfd_ardata (archive)->first_file_filepos;
1696 else
1697 GET_VALUE_IN_FIELD (filestart, arch_xhdr (last_file)->nextoff, 10);
1698
1699 if (filestart == 0
1700 || EQ_VALUE_IN_FIELD (filestart, xcoff_ardata (archive)->memoff, 10)
1701 || EQ_VALUE_IN_FIELD (filestart, xcoff_ardata (archive)->symoff, 10))
1702 {
1703 bfd_set_error (bfd_error_no_more_archived_files);
1704 return NULL;
1705 }
1706 }
1707 else
1708 {
1709 if (last_file == NULL)
1710 filestart = bfd_ardata (archive)->first_file_filepos;
1711 else
1712 GET_VALUE_IN_FIELD (filestart, arch_xhdr_big (last_file)->nextoff, 10);
1713
1714 if (filestart == 0
1715 || EQ_VALUE_IN_FIELD (filestart, xcoff_ardata_big (archive)->memoff, 10)
1716 || EQ_VALUE_IN_FIELD (filestart, xcoff_ardata_big (archive)->symoff, 10))
1717 {
1718 bfd_set_error (bfd_error_no_more_archived_files);
1719 return NULL;
1720 }
1721 }
1722
1723 return _bfd_get_elt_at_filepos (archive, filestart);
1724 }
1725
1726 /* Stat an element in an XCOFF archive. */
1727
1728 int
_bfd_xcoff_stat_arch_elt(bfd * abfd,struct stat * s)1729 _bfd_xcoff_stat_arch_elt (bfd *abfd, struct stat *s)
1730 {
1731 if (abfd->arelt_data == NULL)
1732 {
1733 bfd_set_error (bfd_error_invalid_operation);
1734 return -1;
1735 }
1736
1737 if (! xcoff_big_format_p (abfd->my_archive))
1738 {
1739 struct xcoff_ar_hdr *hdrp = arch_xhdr (abfd);
1740
1741 GET_VALUE_IN_FIELD (s->st_mtime, hdrp->date, 10);
1742 GET_VALUE_IN_FIELD (s->st_uid, hdrp->uid, 10);
1743 GET_VALUE_IN_FIELD (s->st_gid, hdrp->gid, 10);
1744 GET_VALUE_IN_FIELD (s->st_mode, hdrp->mode, 8);
1745 s->st_size = arch_eltdata (abfd)->parsed_size;
1746 }
1747 else
1748 {
1749 struct xcoff_ar_hdr_big *hdrp = arch_xhdr_big (abfd);
1750
1751 GET_VALUE_IN_FIELD (s->st_mtime, hdrp->date, 10);
1752 GET_VALUE_IN_FIELD (s->st_uid, hdrp->uid, 10);
1753 GET_VALUE_IN_FIELD (s->st_gid, hdrp->gid, 10);
1754 GET_VALUE_IN_FIELD (s->st_mode, hdrp->mode, 8);
1755 s->st_size = arch_eltdata (abfd)->parsed_size;
1756 }
1757
1758 return 0;
1759 }
1760
1761 /* Normalize a file name for inclusion in an archive. */
1762
1763 static const char *
normalize_filename(bfd * abfd)1764 normalize_filename (bfd *abfd)
1765 {
1766 const char *file;
1767 const char *filename;
1768
1769 file = bfd_get_filename (abfd);
1770 filename = strrchr (file, '/');
1771 if (filename != NULL)
1772 filename++;
1773 else
1774 filename = file;
1775 return filename;
1776 }
1777
1778 /* Write out an XCOFF armap. */
1779
1780 static bool
xcoff_write_armap_old(bfd * abfd,unsigned int elength ATTRIBUTE_UNUSED,struct orl * map,unsigned int orl_count,int stridx)1781 xcoff_write_armap_old (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
1782 struct orl *map, unsigned int orl_count, int stridx)
1783 {
1784 struct archive_iterator iterator;
1785 struct xcoff_ar_hdr hdr;
1786 char *p;
1787 unsigned char buf[4];
1788 unsigned int i;
1789
1790 memset (&hdr, 0, sizeof hdr);
1791 sprintf (hdr.size, "%ld", (long) (4 + orl_count * 4 + stridx));
1792 sprintf (hdr.nextoff, "%d", 0);
1793 memcpy (hdr.prevoff, xcoff_ardata (abfd)->memoff, XCOFFARMAG_ELEMENT_SIZE);
1794 sprintf (hdr.date, "%d", 0);
1795 sprintf (hdr.uid, "%d", 0);
1796 sprintf (hdr.gid, "%d", 0);
1797 sprintf (hdr.mode, "%d", 0);
1798 sprintf (hdr.namlen, "%d", 0);
1799
1800 /* We need spaces, not null bytes, in the header. */
1801 for (p = (char *) &hdr; p < (char *) &hdr + SIZEOF_AR_HDR; p++)
1802 if (*p == '\0')
1803 *p = ' ';
1804
1805 if (bfd_bwrite (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
1806 != SIZEOF_AR_HDR
1807 || (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd)
1808 != SXCOFFARFMAG))
1809 return false;
1810
1811 H_PUT_32 (abfd, orl_count, buf);
1812 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
1813 return false;
1814
1815 i = 0;
1816 archive_iterator_begin (&iterator, abfd);
1817 while (i < orl_count && archive_iterator_next (&iterator))
1818 while (map[i].u.abfd == iterator.current.member)
1819 {
1820 H_PUT_32 (abfd, iterator.current.offset, buf);
1821 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
1822 return false;
1823 ++i;
1824 }
1825
1826 for (i = 0; i < orl_count; i++)
1827 {
1828 const char *name;
1829 size_t namlen;
1830
1831 name = *map[i].name;
1832 namlen = strlen (name);
1833 if (bfd_bwrite (name, (bfd_size_type) (namlen + 1), abfd) != namlen + 1)
1834 return false;
1835 }
1836
1837 if ((stridx & 1) != 0)
1838 {
1839 char b;
1840
1841 b = '\0';
1842 if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
1843 return false;
1844 }
1845
1846 return true;
1847 }
1848
1849 static char buff20[XCOFFARMAGBIG_ELEMENT_SIZE + 1];
1850 #if BFD_HOST_64BIT_LONG
1851 #define FMT20 "%-20ld"
1852 #elif defined (__MSVCRT__)
1853 #define FMT20 "%-20I64d"
1854 #else
1855 #define FMT20 "%-20lld"
1856 #endif
1857 #define FMT12 "%-12d"
1858 #define FMT12_OCTAL "%-12o"
1859 #define FMT4 "%-4d"
1860 #define PRINT20(d, v) \
1861 sprintf (buff20, FMT20, (bfd_uint64_t)(v)), \
1862 memcpy ((void *) (d), buff20, 20)
1863
1864 #define PRINT12(d, v) \
1865 sprintf (buff20, FMT12, (int)(v)), \
1866 memcpy ((void *) (d), buff20, 12)
1867
1868 #define PRINT12_OCTAL(d, v) \
1869 sprintf (buff20, FMT12_OCTAL, (unsigned int)(v)), \
1870 memcpy ((void *) (d), buff20, 12)
1871
1872 #define PRINT4(d, v) \
1873 sprintf (buff20, FMT4, (int)(v)), \
1874 memcpy ((void *) (d), buff20, 4)
1875
1876 #define READ20(d, v) \
1877 buff20[20] = 0, \
1878 memcpy (buff20, (d), 20), \
1879 (v) = bfd_scan_vma (buff20, (const char **) NULL, 10)
1880
1881 static bool
do_pad(bfd * abfd,unsigned int number)1882 do_pad (bfd *abfd, unsigned int number)
1883 {
1884 bfd_byte b = 0;
1885
1886 /* Limit pad to <= 4096. */
1887 if (number > 4096)
1888 return false;
1889
1890 while (number--)
1891 if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
1892 return false;
1893
1894 return true;
1895 }
1896
1897 static bool
do_copy(bfd * out_bfd,bfd * in_bfd)1898 do_copy (bfd *out_bfd, bfd *in_bfd)
1899 {
1900 bfd_size_type remaining;
1901 bfd_byte buffer[DEFAULT_BUFFERSIZE];
1902
1903 if (bfd_seek (in_bfd, (file_ptr) 0, SEEK_SET) != 0)
1904 return false;
1905
1906 remaining = arelt_size (in_bfd);
1907
1908 while (remaining >= DEFAULT_BUFFERSIZE)
1909 {
1910 if (bfd_bread (buffer, DEFAULT_BUFFERSIZE, in_bfd) != DEFAULT_BUFFERSIZE
1911 || bfd_bwrite (buffer, DEFAULT_BUFFERSIZE, out_bfd) != DEFAULT_BUFFERSIZE)
1912 return false;
1913
1914 remaining -= DEFAULT_BUFFERSIZE;
1915 }
1916
1917 if (remaining)
1918 {
1919 if (bfd_bread (buffer, remaining, in_bfd) != remaining
1920 || bfd_bwrite (buffer, remaining, out_bfd) != remaining)
1921 return false;
1922 }
1923
1924 return true;
1925 }
1926
1927 static bool
xcoff_write_armap_big(bfd * abfd,unsigned int elength ATTRIBUTE_UNUSED,struct orl * map,unsigned int orl_count,int stridx)1928 xcoff_write_armap_big (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
1929 struct orl *map, unsigned int orl_count, int stridx)
1930 {
1931 struct archive_iterator iterator;
1932 struct xcoff_ar_file_hdr_big *fhdr;
1933 bfd_vma i, sym_32, sym_64, str_32, str_64;
1934 const bfd_arch_info_type *arch_info;
1935 bfd *current_bfd;
1936 size_t string_length;
1937 file_ptr nextoff, prevoff;
1938
1939 /* First, we look through the symbols and work out which are
1940 from 32-bit objects and which from 64-bit ones. */
1941 sym_32 = sym_64 = str_32 = str_64 = 0;
1942
1943 i = 0;
1944 for (current_bfd = abfd->archive_head;
1945 current_bfd != NULL && i < orl_count;
1946 current_bfd = current_bfd->archive_next)
1947 {
1948 arch_info = bfd_get_arch_info (current_bfd);
1949 while (map[i].u.abfd == current_bfd)
1950 {
1951 string_length = strlen (*map[i].name) + 1;
1952 if (arch_info->bits_per_address == 64)
1953 {
1954 sym_64++;
1955 str_64 += string_length;
1956 }
1957 else
1958 {
1959 sym_32++;
1960 str_32 += string_length;
1961 }
1962 i++;
1963 }
1964 }
1965
1966 /* A quick sanity check... */
1967 BFD_ASSERT (sym_64 + sym_32 == orl_count);
1968 /* Explicit cast to int for compiler. */
1969 BFD_ASSERT ((int)(str_64 + str_32) == stridx);
1970
1971 fhdr = xcoff_ardata_big (abfd);
1972
1973 /* xcoff_write_archive_contents_big passes nextoff in symoff. */
1974 READ20 (fhdr->memoff, prevoff);
1975 READ20 (fhdr->symoff, nextoff);
1976
1977 BFD_ASSERT (nextoff == bfd_tell (abfd));
1978
1979 /* Write out the symbol table.
1980 Layout :
1981
1982 standard big archive header
1983 0x0000 ar_size [0x14]
1984 0x0014 ar_nxtmem [0x14]
1985 0x0028 ar_prvmem [0x14]
1986 0x003C ar_date [0x0C]
1987 0x0048 ar_uid [0x0C]
1988 0x0054 ar_gid [0x0C]
1989 0x0060 ar_mod [0x0C]
1990 0x006C ar_namelen[0x04]
1991 0x0070 ar_fmag [SXCOFFARFMAG]
1992
1993 Symbol table
1994 0x0072 num_syms [0x08], binary
1995 0x0078 offsets [0x08 * num_syms], binary
1996 0x0086 + 0x08 * num_syms names [??]
1997 ?? pad to even bytes.
1998 */
1999
2000 if (sym_32)
2001 {
2002 struct xcoff_ar_hdr_big *hdr;
2003 char *symbol_table;
2004 char *st;
2005
2006 bfd_vma symbol_table_size =
2007 SIZEOF_AR_HDR_BIG
2008 + SXCOFFARFMAG
2009 + 8
2010 + 8 * sym_32
2011 + str_32 + (str_32 & 1);
2012
2013 symbol_table = bfd_zmalloc (symbol_table_size);
2014 if (symbol_table == NULL)
2015 return false;
2016
2017 hdr = (struct xcoff_ar_hdr_big *) symbol_table;
2018
2019 PRINT20 (hdr->size, 8 + 8 * sym_32 + str_32 + (str_32 & 1));
2020
2021 if (sym_64)
2022 PRINT20 (hdr->nextoff, nextoff + symbol_table_size);
2023 else
2024 PRINT20 (hdr->nextoff, 0);
2025
2026 PRINT20 (hdr->prevoff, prevoff);
2027 PRINT12 (hdr->date, 0);
2028 PRINT12 (hdr->uid, 0);
2029 PRINT12 (hdr->gid, 0);
2030 PRINT12 (hdr->mode, 0);
2031 PRINT4 (hdr->namlen, 0) ;
2032
2033 st = symbol_table + SIZEOF_AR_HDR_BIG;
2034 memcpy (st, XCOFFARFMAG, SXCOFFARFMAG);
2035 st += SXCOFFARFMAG;
2036
2037 bfd_h_put_64 (abfd, sym_32, st);
2038 st += 8;
2039
2040 /* loop over the 32 bit offsets */
2041 i = 0;
2042 archive_iterator_begin (&iterator, abfd);
2043 while (i < orl_count && archive_iterator_next (&iterator))
2044 {
2045 arch_info = bfd_get_arch_info (iterator.current.member);
2046 while (map[i].u.abfd == iterator.current.member)
2047 {
2048 if (arch_info->bits_per_address == 32)
2049 {
2050 bfd_h_put_64 (abfd, iterator.current.offset, st);
2051 st += 8;
2052 }
2053 i++;
2054 }
2055 }
2056
2057 /* loop over the 32 bit symbol names */
2058 i = 0;
2059 for (current_bfd = abfd->archive_head;
2060 current_bfd != NULL && i < orl_count;
2061 current_bfd = current_bfd->archive_next)
2062 {
2063 arch_info = bfd_get_arch_info (current_bfd);
2064 while (map[i].u.abfd == current_bfd)
2065 {
2066 if (arch_info->bits_per_address == 32)
2067 {
2068 string_length = sprintf (st, "%s", *map[i].name);
2069 st += string_length + 1;
2070 }
2071 i++;
2072 }
2073 }
2074
2075 bfd_bwrite (symbol_table, symbol_table_size, abfd);
2076
2077 free (symbol_table);
2078
2079 prevoff = nextoff;
2080 nextoff = nextoff + symbol_table_size;
2081 }
2082 else
2083 PRINT20 (fhdr->symoff, 0);
2084
2085 if (sym_64)
2086 {
2087 struct xcoff_ar_hdr_big *hdr;
2088 char *symbol_table;
2089 char *st;
2090
2091 bfd_vma symbol_table_size =
2092 SIZEOF_AR_HDR_BIG
2093 + SXCOFFARFMAG
2094 + 8
2095 + 8 * sym_64
2096 + str_64 + (str_64 & 1);
2097
2098 symbol_table = bfd_zmalloc (symbol_table_size);
2099 if (symbol_table == NULL)
2100 return false;
2101
2102 hdr = (struct xcoff_ar_hdr_big *) symbol_table;
2103
2104 PRINT20 (hdr->size, 8 + 8 * sym_64 + str_64 + (str_64 & 1));
2105 PRINT20 (hdr->nextoff, 0);
2106 PRINT20 (hdr->prevoff, prevoff);
2107 PRINT12 (hdr->date, 0);
2108 PRINT12 (hdr->uid, 0);
2109 PRINT12 (hdr->gid, 0);
2110 PRINT12 (hdr->mode, 0);
2111 PRINT4 (hdr->namlen, 0);
2112
2113 st = symbol_table + SIZEOF_AR_HDR_BIG;
2114 memcpy (st, XCOFFARFMAG, SXCOFFARFMAG);
2115 st += SXCOFFARFMAG;
2116
2117 bfd_h_put_64 (abfd, sym_64, st);
2118 st += 8;
2119
2120 /* loop over the 64 bit offsets */
2121 i = 0;
2122 archive_iterator_begin (&iterator, abfd);
2123 while (i < orl_count && archive_iterator_next (&iterator))
2124 {
2125 arch_info = bfd_get_arch_info (iterator.current.member);
2126 while (map[i].u.abfd == iterator.current.member)
2127 {
2128 if (arch_info->bits_per_address == 64)
2129 {
2130 bfd_h_put_64 (abfd, iterator.current.offset, st);
2131 st += 8;
2132 }
2133 i++;
2134 }
2135 }
2136
2137 /* loop over the 64 bit symbol names */
2138 i = 0;
2139 for (current_bfd = abfd->archive_head;
2140 current_bfd != NULL && i < orl_count;
2141 current_bfd = current_bfd->archive_next)
2142 {
2143 arch_info = bfd_get_arch_info (current_bfd);
2144 while (map[i].u.abfd == current_bfd)
2145 {
2146 if (arch_info->bits_per_address == 64)
2147 {
2148 string_length = sprintf (st, "%s", *map[i].name);
2149 st += string_length + 1;
2150 }
2151 i++;
2152 }
2153 }
2154
2155 bfd_bwrite (symbol_table, symbol_table_size, abfd);
2156
2157 free (symbol_table);
2158
2159 PRINT20 (fhdr->symoff64, nextoff);
2160 }
2161 else
2162 PRINT20 (fhdr->symoff64, 0);
2163
2164 return true;
2165 }
2166
2167 bool
_bfd_xcoff_write_armap(bfd * abfd,unsigned int elength ATTRIBUTE_UNUSED,struct orl * map,unsigned int orl_count,int stridx)2168 _bfd_xcoff_write_armap (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
2169 struct orl *map, unsigned int orl_count, int stridx)
2170 {
2171 if (! xcoff_big_format_p (abfd))
2172 return xcoff_write_armap_old (abfd, elength, map, orl_count, stridx);
2173 else
2174 return xcoff_write_armap_big (abfd, elength, map, orl_count, stridx);
2175 }
2176
2177 /* Write out an XCOFF archive. We always write an entire archive,
2178 rather than fussing with the freelist and so forth. */
2179
2180 static bool
xcoff_write_archive_contents_old(bfd * abfd)2181 xcoff_write_archive_contents_old (bfd *abfd)
2182 {
2183 struct archive_iterator iterator;
2184 struct xcoff_ar_file_hdr fhdr;
2185 bfd_size_type count;
2186 bfd_size_type total_namlen;
2187 file_ptr *offsets;
2188 bool makemap;
2189 bool hasobjects;
2190 file_ptr prevoff, nextoff;
2191 bfd *sub;
2192 size_t i;
2193 struct xcoff_ar_hdr ahdr;
2194 bfd_size_type size;
2195 char *p;
2196 char decbuf[XCOFFARMAG_ELEMENT_SIZE + 1];
2197
2198 memset (&fhdr, 0, sizeof fhdr);
2199 (void) memcpy (fhdr.magic, XCOFFARMAG, SXCOFFARMAG);
2200 sprintf (fhdr.firstmemoff, "%d", SIZEOF_AR_FILE_HDR);
2201 sprintf (fhdr.freeoff, "%d", 0);
2202
2203 count = 0;
2204 total_namlen = 0;
2205 for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next)
2206 {
2207 ++count;
2208 total_namlen += strlen (normalize_filename (sub)) + 1;
2209 if (sub->arelt_data == NULL)
2210 {
2211 sub->arelt_data = bfd_zmalloc (sizeof (struct areltdata));
2212 if (sub->arelt_data == NULL)
2213 return false;
2214 }
2215 if (arch_xhdr (sub) == NULL)
2216 {
2217 struct xcoff_ar_hdr *ahdrp;
2218 struct stat s;
2219
2220 if ((sub->flags & BFD_IN_MEMORY) != 0)
2221 {
2222 /* Assume we just "made" the member, and fake it. */
2223 struct bfd_in_memory *bim
2224 = (struct bfd_in_memory *) sub->iostream;
2225 time (&s.st_mtime);
2226 s.st_uid = getuid ();
2227 s.st_gid = getgid ();
2228 s.st_mode = 0644;
2229 s.st_size = bim->size;
2230 }
2231 else if (stat (bfd_get_filename (sub), &s) != 0)
2232 {
2233 bfd_set_input_error (sub, bfd_error_system_call);
2234 return false;
2235 }
2236
2237 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2238 {
2239 s.st_mtime = 0;
2240 s.st_uid = 0;
2241 s.st_gid = 0;
2242 s.st_mode = 0644;
2243 }
2244
2245 ahdrp = bfd_zalloc (sub, sizeof (*ahdrp));
2246 if (ahdrp == NULL)
2247 return false;
2248
2249 sprintf (ahdrp->size, "%ld", (long) s.st_size);
2250 sprintf (ahdrp->date, "%ld", (long) s.st_mtime);
2251 sprintf (ahdrp->uid, "%ld", (long) s.st_uid);
2252 sprintf (ahdrp->gid, "%ld", (long) s.st_gid);
2253 sprintf (ahdrp->mode, "%o", (unsigned int) s.st_mode);
2254
2255 arch_eltdata (sub)->arch_header = (char *) ahdrp;
2256 arch_eltdata (sub)->parsed_size = s.st_size;
2257 }
2258 }
2259 offsets = (file_ptr *) bfd_alloc (abfd, count * sizeof (file_ptr));
2260 if (offsets == NULL)
2261 return false;
2262
2263 if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR, SEEK_SET) != 0)
2264 return false;
2265
2266 makemap = bfd_has_map (abfd);
2267 hasobjects = false;
2268 prevoff = 0;
2269 for (archive_iterator_begin (&iterator, abfd), i = 0;
2270 archive_iterator_next (&iterator);
2271 i++)
2272 {
2273 bfd_size_type namlen;
2274 struct xcoff_ar_hdr *ahdrp;
2275
2276 if (makemap && ! hasobjects)
2277 {
2278 if (bfd_check_format (iterator.current.member, bfd_object))
2279 hasobjects = true;
2280 }
2281
2282 ahdrp = arch_xhdr (iterator.current.member);
2283 sprintf (ahdrp->prevoff, "%ld", (long) prevoff);
2284 sprintf (ahdrp->namlen, "%ld", (long) iterator.current.namlen);
2285 sprintf (ahdrp->nextoff, "%ld", (long) iterator.next.offset);
2286
2287 /* We need spaces, not null bytes, in the header. */
2288 for (p = (char *) ahdrp; p < (char *) ahdrp + SIZEOF_AR_HDR; p++)
2289 if (*p == '\0')
2290 *p = ' ';
2291
2292 if (!do_pad (abfd, iterator.current.leading_padding))
2293 return false;
2294
2295 BFD_ASSERT (iterator.current.offset == bfd_tell (abfd));
2296 namlen = iterator.current.padded_namlen;
2297 if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR, abfd) != SIZEOF_AR_HDR
2298 || bfd_bwrite (iterator.current.name, namlen, abfd) != namlen
2299 || bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG
2300 || bfd_seek (iterator.current.member, 0, SEEK_SET) != 0
2301 || !do_copy (abfd, iterator.current.member)
2302 || !do_pad (abfd, iterator.current.trailing_padding))
2303 return false;
2304
2305 offsets[i] = iterator.current.offset;
2306 prevoff = iterator.current.offset;
2307 }
2308
2309 sprintf (fhdr.lastmemoff, "%ld", (long) prevoff);
2310
2311 /* Write out the member table. */
2312
2313 nextoff = iterator.next.offset;
2314 BFD_ASSERT (nextoff == bfd_tell (abfd));
2315 sprintf (fhdr.memoff, "%ld", (long) nextoff);
2316
2317 memset (&ahdr, 0, sizeof ahdr);
2318 sprintf (ahdr.size, "%ld", (long) (XCOFFARMAG_ELEMENT_SIZE
2319 + count * XCOFFARMAG_ELEMENT_SIZE
2320 + total_namlen));
2321 sprintf (ahdr.prevoff, "%ld", (long) prevoff);
2322 sprintf (ahdr.date, "%d", 0);
2323 sprintf (ahdr.uid, "%d", 0);
2324 sprintf (ahdr.gid, "%d", 0);
2325 sprintf (ahdr.mode, "%d", 0);
2326 sprintf (ahdr.namlen, "%d", 0);
2327
2328 size = (SIZEOF_AR_HDR
2329 + XCOFFARMAG_ELEMENT_SIZE
2330 + count * XCOFFARMAG_ELEMENT_SIZE
2331 + total_namlen
2332 + SXCOFFARFMAG);
2333
2334 prevoff = nextoff;
2335 nextoff += size + (size & 1);
2336
2337 if (makemap && hasobjects)
2338 sprintf (ahdr.nextoff, "%ld", (long) nextoff);
2339 else
2340 sprintf (ahdr.nextoff, "%d", 0);
2341
2342 /* We need spaces, not null bytes, in the header. */
2343 for (p = (char *) &ahdr; p < (char *) &ahdr + SIZEOF_AR_HDR; p++)
2344 if (*p == '\0')
2345 *p = ' ';
2346
2347 if ((bfd_bwrite (&ahdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
2348 != SIZEOF_AR_HDR)
2349 || (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd)
2350 != SXCOFFARFMAG))
2351 return false;
2352
2353 sprintf (decbuf, "%-12ld", (long) count);
2354 if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE, abfd)
2355 != XCOFFARMAG_ELEMENT_SIZE)
2356 return false;
2357 for (i = 0; i < (size_t) count; i++)
2358 {
2359 sprintf (decbuf, "%-12ld", (long) offsets[i]);
2360 if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE,
2361 abfd) != XCOFFARMAG_ELEMENT_SIZE)
2362 return false;
2363 }
2364 for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next)
2365 {
2366 const char *name;
2367 bfd_size_type namlen;
2368
2369 name = normalize_filename (sub);
2370 namlen = strlen (name);
2371 if (bfd_bwrite (name, namlen + 1, abfd) != namlen + 1)
2372 return false;
2373 }
2374
2375 if (! do_pad (abfd, size & 1))
2376 return false;
2377
2378 /* Write out the armap, if appropriate. */
2379 if (! makemap || ! hasobjects)
2380 sprintf (fhdr.symoff, "%d", 0);
2381 else
2382 {
2383 BFD_ASSERT (nextoff == bfd_tell (abfd));
2384 sprintf (fhdr.symoff, "%ld", (long) nextoff);
2385 bfd_ardata (abfd)->tdata = &fhdr;
2386 if (! _bfd_compute_and_write_armap (abfd, 0))
2387 return false;
2388 }
2389
2390 /* Write out the archive file header. */
2391
2392 /* We need spaces, not null bytes, in the header. */
2393 for (p = (char *) &fhdr; p < (char *) &fhdr + SIZEOF_AR_FILE_HDR; p++)
2394 if (*p == '\0')
2395 *p = ' ';
2396
2397 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
2398 || (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR, abfd)
2399 != SIZEOF_AR_FILE_HDR))
2400 return false;
2401
2402 return true;
2403 }
2404
2405 static bool
xcoff_write_archive_contents_big(bfd * abfd)2406 xcoff_write_archive_contents_big (bfd *abfd)
2407 {
2408 struct xcoff_ar_file_hdr_big fhdr;
2409 bfd_size_type count;
2410 bfd_size_type total_namlen;
2411 file_ptr *offsets;
2412 bool makemap;
2413 bool hasobjects;
2414 file_ptr prevoff, nextoff;
2415 bfd *current_bfd;
2416 size_t i;
2417 struct xcoff_ar_hdr_big *hdr;
2418 bfd_size_type size;
2419 char *member_table, *mt;
2420 bfd_vma member_table_size;
2421 struct archive_iterator iterator;
2422
2423 memset (&fhdr, 0, SIZEOF_AR_FILE_HDR_BIG);
2424 memcpy (fhdr.magic, XCOFFARMAGBIG, SXCOFFARMAG);
2425
2426 if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR_BIG, SEEK_SET) != 0)
2427 return false;
2428
2429 /* Calculate count and total_namlen. */
2430 makemap = bfd_has_map (abfd);
2431 hasobjects = false;
2432 for (current_bfd = abfd->archive_head, count = 0, total_namlen = 0;
2433 current_bfd != NULL;
2434 current_bfd = current_bfd->archive_next, count++)
2435 {
2436 total_namlen += strlen (normalize_filename (current_bfd)) + 1;
2437
2438 if (makemap
2439 && ! hasobjects
2440 && bfd_check_format (current_bfd, bfd_object))
2441 hasobjects = true;
2442
2443 if (current_bfd->arelt_data == NULL)
2444 {
2445 size = sizeof (struct areltdata);
2446 current_bfd->arelt_data = bfd_zmalloc (size);
2447 if (current_bfd->arelt_data == NULL)
2448 return false;
2449 }
2450
2451 if (arch_xhdr_big (current_bfd) == NULL)
2452 {
2453 struct xcoff_ar_hdr_big *ahdrp;
2454 struct stat s;
2455
2456 if ((current_bfd->flags & BFD_IN_MEMORY) != 0)
2457 {
2458 /* Assume we just "made" the member, and fake it. */
2459 struct bfd_in_memory *bim
2460 = (struct bfd_in_memory *) current_bfd->iostream;
2461 time (&s.st_mtime);
2462 s.st_uid = getuid ();
2463 s.st_gid = getgid ();
2464 s.st_mode = 0644;
2465 s.st_size = bim->size;
2466 }
2467 else if (stat (bfd_get_filename (current_bfd), &s) != 0)
2468 {
2469 bfd_set_input_error (current_bfd, bfd_error_system_call);
2470 return false;
2471 }
2472
2473 if ((abfd->flags & BFD_DETERMINISTIC_OUTPUT) != 0)
2474 {
2475 s.st_mtime = 0;
2476 s.st_uid = 0;
2477 s.st_gid = 0;
2478 s.st_mode = 0644;
2479 }
2480
2481 ahdrp = bfd_zalloc (current_bfd, sizeof (*ahdrp));
2482 if (ahdrp == NULL)
2483 return false;
2484
2485 PRINT20 (ahdrp->size, s.st_size);
2486 PRINT12 (ahdrp->date, s.st_mtime);
2487 PRINT12 (ahdrp->uid, s.st_uid);
2488 PRINT12 (ahdrp->gid, s.st_gid);
2489 PRINT12_OCTAL (ahdrp->mode, s.st_mode);
2490
2491 arch_eltdata (current_bfd)->arch_header = (char *) ahdrp;
2492 arch_eltdata (current_bfd)->parsed_size = s.st_size;
2493 }
2494 }
2495
2496 offsets = NULL;
2497 if (count)
2498 {
2499 offsets = (file_ptr *) bfd_malloc (count * sizeof (file_ptr));
2500 if (offsets == NULL)
2501 return false;
2502 }
2503
2504 prevoff = 0;
2505 for (archive_iterator_begin (&iterator, abfd), i = 0;
2506 archive_iterator_next (&iterator);
2507 i++)
2508 {
2509 bfd_size_type namlen;
2510 struct xcoff_ar_hdr_big *ahdrp;
2511
2512 ahdrp = arch_xhdr_big (iterator.current.member);
2513 PRINT20 (ahdrp->prevoff, prevoff);
2514 PRINT4 (ahdrp->namlen, iterator.current.namlen);
2515 PRINT20 (ahdrp->nextoff, iterator.next.offset);
2516
2517 if (!do_pad (abfd, iterator.current.leading_padding))
2518 {
2519 free (offsets);
2520 return false;
2521 }
2522
2523 BFD_ASSERT (iterator.current.offset == bfd_tell (abfd));
2524 namlen = iterator.current.padded_namlen;
2525 if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR_BIG, abfd) != SIZEOF_AR_HDR_BIG
2526 || bfd_bwrite (iterator.current.name, namlen, abfd) != namlen
2527 || bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG
2528 || bfd_seek (iterator.current.member, 0, SEEK_SET) != 0
2529 || !do_copy (abfd, iterator.current.member)
2530 || !do_pad (abfd, iterator.current.trailing_padding))
2531 {
2532 free (offsets);
2533 return false;
2534 }
2535
2536 offsets[i] = iterator.current.offset;
2537 prevoff = iterator.current.offset;
2538 }
2539
2540 if (count)
2541 {
2542 PRINT20 (fhdr.firstmemoff, offsets[0]);
2543 PRINT20 (fhdr.lastmemoff, prevoff);
2544 }
2545
2546 /* Write out the member table.
2547 Layout :
2548
2549 standard big archive header
2550 0x0000 ar_size [0x14]
2551 0x0014 ar_nxtmem [0x14]
2552 0x0028 ar_prvmem [0x14]
2553 0x003C ar_date [0x0C]
2554 0x0048 ar_uid [0x0C]
2555 0x0054 ar_gid [0x0C]
2556 0x0060 ar_mod [0x0C]
2557 0x006C ar_namelen[0x04]
2558 0x0070 ar_fmag [0x02]
2559
2560 Member table
2561 0x0072 count [0x14]
2562 0x0086 offsets [0x14 * counts]
2563 0x0086 + 0x14 * counts names [??]
2564 ?? pad to even bytes.
2565 */
2566
2567 nextoff = iterator.next.offset;
2568 BFD_ASSERT (nextoff == bfd_tell (abfd));
2569
2570 member_table_size = (SIZEOF_AR_HDR_BIG
2571 + SXCOFFARFMAG
2572 + XCOFFARMAGBIG_ELEMENT_SIZE
2573 + count * XCOFFARMAGBIG_ELEMENT_SIZE
2574 + total_namlen);
2575
2576 member_table_size += member_table_size & 1;
2577 member_table = bfd_zmalloc (member_table_size);
2578 if (member_table == NULL)
2579 {
2580 free (offsets);
2581 return false;
2582 }
2583
2584 hdr = (struct xcoff_ar_hdr_big *) member_table;
2585
2586 PRINT20 (hdr->size, (XCOFFARMAGBIG_ELEMENT_SIZE
2587 + count * XCOFFARMAGBIG_ELEMENT_SIZE
2588 + total_namlen + (total_namlen & 1)));
2589 if (makemap && hasobjects)
2590 PRINT20 (hdr->nextoff, nextoff + member_table_size);
2591 else
2592 PRINT20 (hdr->nextoff, 0);
2593 PRINT20 (hdr->prevoff, prevoff);
2594 PRINT12 (hdr->date, 0);
2595 PRINT12 (hdr->uid, 0);
2596 PRINT12 (hdr->gid, 0);
2597 PRINT12 (hdr->mode, 0);
2598 PRINT4 (hdr->namlen, 0);
2599
2600 mt = member_table + SIZEOF_AR_HDR_BIG;
2601 memcpy (mt, XCOFFARFMAG, SXCOFFARFMAG);
2602 mt += SXCOFFARFMAG;
2603
2604 PRINT20 (mt, count);
2605 mt += XCOFFARMAGBIG_ELEMENT_SIZE;
2606 for (i = 0; i < (size_t) count; i++)
2607 {
2608 PRINT20 (mt, offsets[i]);
2609 mt += XCOFFARMAGBIG_ELEMENT_SIZE;
2610 }
2611
2612 if (count)
2613 {
2614 free (offsets);
2615 offsets = NULL;
2616 }
2617
2618 for (current_bfd = abfd->archive_head;
2619 current_bfd != NULL;
2620 current_bfd = current_bfd->archive_next)
2621 {
2622 const char *name;
2623 size_t namlen;
2624
2625 name = normalize_filename (current_bfd);
2626 namlen = sprintf (mt, "%s", name);
2627 mt += namlen + 1;
2628 }
2629
2630 if (bfd_bwrite (member_table, member_table_size, abfd) != member_table_size)
2631 return false;
2632
2633 free (member_table);
2634
2635 PRINT20 (fhdr.memoff, nextoff);
2636
2637 prevoff = nextoff;
2638 nextoff += member_table_size;
2639
2640 /* Write out the armap, if appropriate. */
2641
2642 if (! makemap || ! hasobjects)
2643 PRINT20 (fhdr.symoff, 0);
2644 else
2645 {
2646 BFD_ASSERT (nextoff == bfd_tell (abfd));
2647
2648 /* Save nextoff in fhdr.symoff so the armap routine can use it. */
2649 PRINT20 (fhdr.symoff, nextoff);
2650
2651 bfd_ardata (abfd)->tdata = &fhdr;
2652 if (! _bfd_compute_and_write_armap (abfd, 0))
2653 return false;
2654 }
2655
2656 /* Write out the archive file header. */
2657
2658 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
2659 || (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR_BIG,
2660 abfd) != SIZEOF_AR_FILE_HDR_BIG))
2661 return false;
2662
2663 return true;
2664 }
2665
2666 bool
_bfd_xcoff_write_archive_contents(bfd * abfd)2667 _bfd_xcoff_write_archive_contents (bfd *abfd)
2668 {
2669 if (! xcoff_big_format_p (abfd))
2670 return xcoff_write_archive_contents_old (abfd);
2671 else
2672 return xcoff_write_archive_contents_big (abfd);
2673 }
2674
2675 /* We can't use the usual coff_sizeof_headers routine, because AIX
2676 always uses an a.out header. */
2677
2678 int
_bfd_xcoff_sizeof_headers(bfd * abfd,struct bfd_link_info * info ATTRIBUTE_UNUSED)2679 _bfd_xcoff_sizeof_headers (bfd *abfd,
2680 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2681 {
2682 int size;
2683
2684 size = FILHSZ;
2685 if (xcoff_data (abfd)->full_aouthdr)
2686 size += AOUTSZ;
2687 else
2688 size += SMALL_AOUTSZ;
2689 size += abfd->section_count * SCNHSZ;
2690
2691 if (info->strip != strip_all)
2692 {
2693 /* There can be additional sections just for dealing with overflow in
2694 reloc and lineno counts. But the numbers of relocs and lineno aren't
2695 known when bfd_sizeof_headers is called, so we compute them by
2696 summing the numbers from input sections. */
2697 struct nbr_reloc_lineno
2698 {
2699 unsigned int reloc_count;
2700 unsigned int lineno_count;
2701 };
2702 struct nbr_reloc_lineno *n_rl;
2703 bfd *sub;
2704 unsigned int max_index;
2705 asection *s;
2706
2707 /* Although the number of sections is known, the maximum value of
2708 section->index isn't (because some sections may have been removed).
2709 Don't try to renumber sections, just compute the upper bound. */
2710 max_index = 0;
2711 for (s = abfd->sections; s != NULL; s = s->next)
2712 if (s->index > max_index)
2713 max_index = s->index;
2714
2715 /* Allocate the per section counters. It could be possible to use a
2716 preallocated array as the number of sections is limited on XCOFF,
2717 but this creates a maintainance issue. */
2718 n_rl = bfd_zmalloc ((max_index + 1) * sizeof (*n_rl));
2719 if (n_rl == NULL)
2720 return -1;
2721
2722 /* Sum. */
2723 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
2724 for (s = sub->sections; s != NULL; s = s->next)
2725 if (s->output_section->owner == abfd
2726 && !bfd_section_removed_from_list (abfd, s->output_section))
2727 {
2728 struct nbr_reloc_lineno *e = &n_rl[s->output_section->index];
2729 e->reloc_count += s->reloc_count;
2730 e->lineno_count += s->lineno_count;
2731 }
2732
2733 /* Add the size of a section for each section with an overflow. */
2734 for (s = abfd->sections; s != NULL; s = s->next)
2735 {
2736 struct nbr_reloc_lineno *e = &n_rl[s->index];
2737
2738 if (e->reloc_count >= 0xffff
2739 || (e->lineno_count >= 0xffff && info->strip != strip_debugger))
2740 size += SCNHSZ;
2741 }
2742
2743 free (n_rl);
2744 }
2745
2746 return size;
2747 }
2748
2749 /* Routines to swap information in the XCOFF .loader section. If we
2750 ever need to write an XCOFF loader, this stuff will need to be
2751 moved to another file shared by the linker (which XCOFF calls the
2752 ``binder'') and the loader. */
2753
2754 /* Swap in the ldhdr structure. */
2755
2756 static void
xcoff_swap_ldhdr_in(bfd * abfd,const void * s,struct internal_ldhdr * dst)2757 xcoff_swap_ldhdr_in (bfd *abfd, const void * s, struct internal_ldhdr *dst)
2758 {
2759 const struct external_ldhdr *src = (const struct external_ldhdr *) s;
2760
2761 dst->l_version = bfd_get_32 (abfd, src->l_version);
2762 dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms);
2763 dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc);
2764 dst->l_istlen = bfd_get_32 (abfd, src->l_istlen);
2765 dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid);
2766 dst->l_impoff = bfd_get_32 (abfd, src->l_impoff);
2767 dst->l_stlen = bfd_get_32 (abfd, src->l_stlen);
2768 dst->l_stoff = bfd_get_32 (abfd, src->l_stoff);
2769 }
2770
2771 /* Swap out the ldhdr structure. */
2772
2773 static void
xcoff_swap_ldhdr_out(bfd * abfd,const struct internal_ldhdr * src,void * d)2774 xcoff_swap_ldhdr_out (bfd *abfd, const struct internal_ldhdr *src, void * d)
2775 {
2776 struct external_ldhdr *dst = (struct external_ldhdr *) d;
2777
2778 bfd_put_32 (abfd, (bfd_vma) src->l_version, dst->l_version);
2779 bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms);
2780 bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc);
2781 bfd_put_32 (abfd, src->l_istlen, dst->l_istlen);
2782 bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid);
2783 bfd_put_32 (abfd, src->l_impoff, dst->l_impoff);
2784 bfd_put_32 (abfd, src->l_stlen, dst->l_stlen);
2785 bfd_put_32 (abfd, src->l_stoff, dst->l_stoff);
2786 }
2787
2788 /* Swap in the ldsym structure. */
2789
2790 static void
xcoff_swap_ldsym_in(bfd * abfd,const void * s,struct internal_ldsym * dst)2791 xcoff_swap_ldsym_in (bfd *abfd, const void * s, struct internal_ldsym *dst)
2792 {
2793 const struct external_ldsym *src = (const struct external_ldsym *) s;
2794
2795 if (bfd_get_32 (abfd, src->_l._l_l._l_zeroes) != 0) {
2796 memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
2797 } else {
2798 dst->_l._l_l._l_zeroes = 0;
2799 dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->_l._l_l._l_offset);
2800 }
2801 dst->l_value = bfd_get_32 (abfd, src->l_value);
2802 dst->l_scnum = bfd_get_16 (abfd, src->l_scnum);
2803 dst->l_smtype = bfd_get_8 (abfd, src->l_smtype);
2804 dst->l_smclas = bfd_get_8 (abfd, src->l_smclas);
2805 dst->l_ifile = bfd_get_32 (abfd, src->l_ifile);
2806 dst->l_parm = bfd_get_32 (abfd, src->l_parm);
2807 }
2808
2809 /* Swap out the ldsym structure. */
2810
2811 static void
xcoff_swap_ldsym_out(bfd * abfd,const struct internal_ldsym * src,void * d)2812 xcoff_swap_ldsym_out (bfd *abfd, const struct internal_ldsym *src, void * d)
2813 {
2814 struct external_ldsym *dst = (struct external_ldsym *) d;
2815
2816 if (src->_l._l_l._l_zeroes != 0)
2817 memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
2818 else
2819 {
2820 bfd_put_32 (abfd, (bfd_vma) 0, dst->_l._l_l._l_zeroes);
2821 bfd_put_32 (abfd, (bfd_vma) src->_l._l_l._l_offset,
2822 dst->_l._l_l._l_offset);
2823 }
2824 bfd_put_32 (abfd, src->l_value, dst->l_value);
2825 bfd_put_16 (abfd, (bfd_vma) src->l_scnum, dst->l_scnum);
2826 bfd_put_8 (abfd, src->l_smtype, dst->l_smtype);
2827 bfd_put_8 (abfd, src->l_smclas, dst->l_smclas);
2828 bfd_put_32 (abfd, src->l_ifile, dst->l_ifile);
2829 bfd_put_32 (abfd, src->l_parm, dst->l_parm);
2830 }
2831
2832 static void
xcoff_swap_reloc_in(bfd * abfd,void * s,void * d)2833 xcoff_swap_reloc_in (bfd *abfd, void * s, void * d)
2834 {
2835 struct external_reloc *src = (struct external_reloc *) s;
2836 struct internal_reloc *dst = (struct internal_reloc *) d;
2837
2838 memset (dst, 0, sizeof (struct internal_reloc));
2839
2840 dst->r_vaddr = bfd_get_32 (abfd, src->r_vaddr);
2841 dst->r_symndx = bfd_get_32 (abfd, src->r_symndx);
2842 dst->r_size = bfd_get_8 (abfd, src->r_size);
2843 dst->r_type = bfd_get_8 (abfd, src->r_type);
2844 }
2845
2846 static unsigned int
xcoff_swap_reloc_out(bfd * abfd,void * s,void * d)2847 xcoff_swap_reloc_out (bfd *abfd, void * s, void * d)
2848 {
2849 struct internal_reloc *src = (struct internal_reloc *) s;
2850 struct external_reloc *dst = (struct external_reloc *) d;
2851
2852 bfd_put_32 (abfd, src->r_vaddr, dst->r_vaddr);
2853 bfd_put_32 (abfd, src->r_symndx, dst->r_symndx);
2854 bfd_put_8 (abfd, src->r_type, dst->r_type);
2855 bfd_put_8 (abfd, src->r_size, dst->r_size);
2856
2857 return bfd_coff_relsz (abfd);
2858 }
2859
2860 /* Swap in the ldrel structure. */
2861
2862 static void
xcoff_swap_ldrel_in(bfd * abfd,const void * s,struct internal_ldrel * dst)2863 xcoff_swap_ldrel_in (bfd *abfd, const void * s, struct internal_ldrel *dst)
2864 {
2865 const struct external_ldrel *src = (const struct external_ldrel *) s;
2866
2867 dst->l_vaddr = bfd_get_32 (abfd, src->l_vaddr);
2868 dst->l_symndx = bfd_get_32 (abfd, src->l_symndx);
2869 dst->l_rtype = bfd_get_16 (abfd, src->l_rtype);
2870 dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm);
2871 }
2872
2873 /* Swap out the ldrel structure. */
2874
2875 static void
xcoff_swap_ldrel_out(bfd * abfd,const struct internal_ldrel * src,void * d)2876 xcoff_swap_ldrel_out (bfd *abfd, const struct internal_ldrel *src, void * d)
2877 {
2878 struct external_ldrel *dst = (struct external_ldrel *) d;
2879
2880 bfd_put_32 (abfd, src->l_vaddr, dst->l_vaddr);
2881 bfd_put_32 (abfd, src->l_symndx, dst->l_symndx);
2882 bfd_put_16 (abfd, (bfd_vma) src->l_rtype, dst->l_rtype);
2883 bfd_put_16 (abfd, (bfd_vma) src->l_rsecnm, dst->l_rsecnm);
2884 }
2885
2886
2887 bool
xcoff_reloc_type_noop(bfd * input_bfd ATTRIBUTE_UNUSED,asection * input_section ATTRIBUTE_UNUSED,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel ATTRIBUTE_UNUSED,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto ATTRIBUTE_UNUSED,bfd_vma val ATTRIBUTE_UNUSED,bfd_vma addend ATTRIBUTE_UNUSED,bfd_vma * relocation ATTRIBUTE_UNUSED,bfd_byte * contents ATTRIBUTE_UNUSED)2888 xcoff_reloc_type_noop (bfd *input_bfd ATTRIBUTE_UNUSED,
2889 asection *input_section ATTRIBUTE_UNUSED,
2890 bfd *output_bfd ATTRIBUTE_UNUSED,
2891 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2892 struct internal_syment *sym ATTRIBUTE_UNUSED,
2893 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2894 bfd_vma val ATTRIBUTE_UNUSED,
2895 bfd_vma addend ATTRIBUTE_UNUSED,
2896 bfd_vma *relocation ATTRIBUTE_UNUSED,
2897 bfd_byte *contents ATTRIBUTE_UNUSED)
2898 {
2899 return true;
2900 }
2901
2902 bool
xcoff_reloc_type_fail(bfd * input_bfd,asection * input_section ATTRIBUTE_UNUSED,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto ATTRIBUTE_UNUSED,bfd_vma val ATTRIBUTE_UNUSED,bfd_vma addend ATTRIBUTE_UNUSED,bfd_vma * relocation ATTRIBUTE_UNUSED,bfd_byte * contents ATTRIBUTE_UNUSED)2903 xcoff_reloc_type_fail (bfd *input_bfd,
2904 asection *input_section ATTRIBUTE_UNUSED,
2905 bfd *output_bfd ATTRIBUTE_UNUSED,
2906 struct internal_reloc *rel,
2907 struct internal_syment *sym ATTRIBUTE_UNUSED,
2908 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2909 bfd_vma val ATTRIBUTE_UNUSED,
2910 bfd_vma addend ATTRIBUTE_UNUSED,
2911 bfd_vma *relocation ATTRIBUTE_UNUSED,
2912 bfd_byte *contents ATTRIBUTE_UNUSED)
2913 {
2914 _bfd_error_handler
2915 /* xgettext: c-format */
2916 (_("%pB: unsupported relocation type %#x"),
2917 input_bfd, (unsigned int) rel->r_type);
2918 bfd_set_error (bfd_error_bad_value);
2919 return false;
2920 }
2921
2922 bool
xcoff_reloc_type_pos(bfd * input_bfd ATTRIBUTE_UNUSED,asection * input_section ATTRIBUTE_UNUSED,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel ATTRIBUTE_UNUSED,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto ATTRIBUTE_UNUSED,bfd_vma val,bfd_vma addend,bfd_vma * relocation,bfd_byte * contents ATTRIBUTE_UNUSED)2923 xcoff_reloc_type_pos (bfd *input_bfd ATTRIBUTE_UNUSED,
2924 asection *input_section ATTRIBUTE_UNUSED,
2925 bfd *output_bfd ATTRIBUTE_UNUSED,
2926 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2927 struct internal_syment *sym ATTRIBUTE_UNUSED,
2928 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2929 bfd_vma val,
2930 bfd_vma addend,
2931 bfd_vma *relocation,
2932 bfd_byte *contents ATTRIBUTE_UNUSED)
2933 {
2934 *relocation = val + addend;
2935 return true;
2936 }
2937
2938 bool
xcoff_reloc_type_neg(bfd * input_bfd ATTRIBUTE_UNUSED,asection * input_section ATTRIBUTE_UNUSED,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel ATTRIBUTE_UNUSED,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto ATTRIBUTE_UNUSED,bfd_vma val,bfd_vma addend,bfd_vma * relocation,bfd_byte * contents ATTRIBUTE_UNUSED)2939 xcoff_reloc_type_neg (bfd *input_bfd ATTRIBUTE_UNUSED,
2940 asection *input_section ATTRIBUTE_UNUSED,
2941 bfd *output_bfd ATTRIBUTE_UNUSED,
2942 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2943 struct internal_syment *sym ATTRIBUTE_UNUSED,
2944 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2945 bfd_vma val,
2946 bfd_vma addend,
2947 bfd_vma *relocation,
2948 bfd_byte *contents ATTRIBUTE_UNUSED)
2949 {
2950 *relocation = - val - addend;
2951 return true;
2952 }
2953
2954 bool
xcoff_reloc_type_rel(bfd * input_bfd ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel ATTRIBUTE_UNUSED,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto,bfd_vma val,bfd_vma addend,bfd_vma * relocation,bfd_byte * contents ATTRIBUTE_UNUSED)2955 xcoff_reloc_type_rel (bfd *input_bfd ATTRIBUTE_UNUSED,
2956 asection *input_section,
2957 bfd *output_bfd ATTRIBUTE_UNUSED,
2958 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2959 struct internal_syment *sym ATTRIBUTE_UNUSED,
2960 struct reloc_howto_struct *howto,
2961 bfd_vma val,
2962 bfd_vma addend,
2963 bfd_vma *relocation,
2964 bfd_byte *contents ATTRIBUTE_UNUSED)
2965 {
2966 howto->pc_relative = true;
2967
2968 /* A PC relative reloc includes the section address. */
2969 addend += input_section->vma;
2970
2971 *relocation = val + addend;
2972 *relocation -= (input_section->output_section->vma
2973 + input_section->output_offset);
2974 return true;
2975 }
2976
2977 bool
xcoff_reloc_type_toc(bfd * input_bfd,asection * input_section ATTRIBUTE_UNUSED,bfd * output_bfd,struct internal_reloc * rel,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto ATTRIBUTE_UNUSED,bfd_vma val,bfd_vma addend ATTRIBUTE_UNUSED,bfd_vma * relocation,bfd_byte * contents ATTRIBUTE_UNUSED)2978 xcoff_reloc_type_toc (bfd *input_bfd,
2979 asection *input_section ATTRIBUTE_UNUSED,
2980 bfd *output_bfd,
2981 struct internal_reloc *rel,
2982 struct internal_syment *sym ATTRIBUTE_UNUSED,
2983 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2984 bfd_vma val,
2985 bfd_vma addend ATTRIBUTE_UNUSED,
2986 bfd_vma *relocation,
2987 bfd_byte *contents ATTRIBUTE_UNUSED)
2988 {
2989 struct xcoff_link_hash_entry *h;
2990
2991 if (0 > rel->r_symndx)
2992 return false;
2993
2994 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
2995
2996 if (h != NULL && h->smclas != XMC_TD)
2997 {
2998 if (h->toc_section == NULL)
2999 {
3000 _bfd_error_handler
3001 /* xgettext: c-format */
3002 (_("%pB: TOC reloc at %#" PRIx64 " to symbol `%s' with no TOC entry"),
3003 input_bfd, (uint64_t) rel->r_vaddr, h->root.root.string);
3004 bfd_set_error (bfd_error_bad_value);
3005 return false;
3006 }
3007
3008 BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
3009 val = (h->toc_section->output_section->vma
3010 + h->toc_section->output_offset);
3011 }
3012
3013 /* We can't use the preexisting value written down by the
3014 assembly, as R_TOCU needs to be adjusted when the final
3015 R_TOCL value is signed. */
3016 *relocation = val - xcoff_data (output_bfd)->toc;
3017
3018 if (rel->r_type == R_TOCU)
3019 *relocation = ((*relocation + 0x8000) >> 16) & 0xffff;
3020 if (rel->r_type == R_TOCL)
3021 *relocation = *relocation & 0x0000ffff;
3022
3023 return true;
3024 }
3025
3026 bool
xcoff_reloc_type_ba(bfd * input_bfd ATTRIBUTE_UNUSED,asection * input_section ATTRIBUTE_UNUSED,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel ATTRIBUTE_UNUSED,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto,bfd_vma val,bfd_vma addend,bfd_vma * relocation,bfd_byte * contents ATTRIBUTE_UNUSED)3027 xcoff_reloc_type_ba (bfd *input_bfd ATTRIBUTE_UNUSED,
3028 asection *input_section ATTRIBUTE_UNUSED,
3029 bfd *output_bfd ATTRIBUTE_UNUSED,
3030 struct internal_reloc *rel ATTRIBUTE_UNUSED,
3031 struct internal_syment *sym ATTRIBUTE_UNUSED,
3032 struct reloc_howto_struct *howto,
3033 bfd_vma val,
3034 bfd_vma addend,
3035 bfd_vma *relocation,
3036 bfd_byte *contents ATTRIBUTE_UNUSED)
3037 {
3038 howto->src_mask &= ~3;
3039 howto->dst_mask = howto->src_mask;
3040
3041 *relocation = val + addend;
3042
3043 return true;
3044 }
3045
3046 static bool
xcoff_reloc_type_br(bfd * input_bfd,asection * input_section,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto,bfd_vma val,bfd_vma addend,bfd_vma * relocation,bfd_byte * contents)3047 xcoff_reloc_type_br (bfd *input_bfd,
3048 asection *input_section,
3049 bfd *output_bfd ATTRIBUTE_UNUSED,
3050 struct internal_reloc *rel,
3051 struct internal_syment *sym ATTRIBUTE_UNUSED,
3052 struct reloc_howto_struct *howto,
3053 bfd_vma val,
3054 bfd_vma addend,
3055 bfd_vma *relocation,
3056 bfd_byte *contents)
3057 {
3058 struct xcoff_link_hash_entry *h;
3059 bfd_vma section_offset;
3060
3061 if (0 > rel->r_symndx)
3062 return false;
3063
3064 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
3065 section_offset = rel->r_vaddr - input_section->vma;
3066
3067 /* If we see an R_BR or R_RBR reloc which is jumping to global
3068 linkage code, and it is followed by an appropriate cror nop
3069 instruction, we replace the cror with lwz r2,20(r1). This
3070 restores the TOC after the glink code. Contrariwise, if the
3071 call is followed by a lwz r2,20(r1), but the call is not
3072 going to global linkage code, we can replace the load with a
3073 cror. */
3074 if (NULL != h
3075 && (bfd_link_hash_defined == h->root.type
3076 || bfd_link_hash_defweak == h->root.type)
3077 && section_offset + 8 <= input_section->size)
3078 {
3079 bfd_byte *pnext;
3080 unsigned long next;
3081
3082 pnext = contents + section_offset + 4;
3083 next = bfd_get_32 (input_bfd, pnext);
3084
3085 /* The _ptrgl function is magic. It is used by the AIX
3086 compiler to call a function through a pointer. */
3087 if (h->smclas == XMC_GL || strcmp (h->root.root.string, "._ptrgl") == 0)
3088 {
3089 if (next == 0x4def7b82 /* cror 15,15,15 */
3090 || next == 0x4ffffb82 /* cror 31,31,31 */
3091 || next == 0x60000000) /* ori r0,r0,0 */
3092 bfd_put_32 (input_bfd, 0x80410014, pnext); /* lwz r2,20(r1) */
3093
3094 }
3095 else
3096 {
3097 if (next == 0x80410014) /* lwz r2,20(r1) */
3098 bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */
3099 }
3100 }
3101 else if (NULL != h && bfd_link_hash_undefined == h->root.type)
3102 {
3103 /* Normally, this relocation is against a defined symbol. In the
3104 case where this is a partial link and the output section offset
3105 is greater than 2^25, the linker will return an invalid error
3106 message that the relocation has been truncated. Yes it has been
3107 truncated but no it not important. For this case, disable the
3108 overflow checking. */
3109
3110 howto->complain_on_overflow = complain_overflow_dont;
3111 }
3112
3113 /* The original PC-relative relocation is biased by -r_vaddr, so adding
3114 the value below will give the absolute target address. */
3115 *relocation = val + addend + rel->r_vaddr;
3116
3117 howto->src_mask &= ~3;
3118 howto->dst_mask = howto->src_mask;
3119
3120 if (h != NULL
3121 && (h->root.type == bfd_link_hash_defined
3122 || h->root.type == bfd_link_hash_defweak)
3123 && bfd_is_abs_section (h->root.u.def.section)
3124 && section_offset + 4 <= input_section->size)
3125 {
3126 bfd_byte *ptr;
3127 bfd_vma insn;
3128
3129 /* Turn the relative branch into an absolute one by setting the
3130 AA bit. */
3131 ptr = contents + section_offset;
3132 insn = bfd_get_32 (input_bfd, ptr);
3133 insn |= 2;
3134 bfd_put_32 (input_bfd, insn, ptr);
3135
3136 /* Make the howto absolute too. */
3137 howto->pc_relative = false;
3138 howto->complain_on_overflow = complain_overflow_bitfield;
3139 }
3140 else
3141 {
3142 /* Use a PC-relative howto and subtract the instruction's address
3143 from the target address we calculated above. */
3144 howto->pc_relative = true;
3145 *relocation -= (input_section->output_section->vma
3146 + input_section->output_offset
3147 + section_offset);
3148 }
3149 return true;
3150 }
3151
3152 bool
xcoff_reloc_type_crel(bfd * input_bfd ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel ATTRIBUTE_UNUSED,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto,bfd_vma val ATTRIBUTE_UNUSED,bfd_vma addend,bfd_vma * relocation,bfd_byte * contents ATTRIBUTE_UNUSED)3153 xcoff_reloc_type_crel (bfd *input_bfd ATTRIBUTE_UNUSED,
3154 asection *input_section,
3155 bfd *output_bfd ATTRIBUTE_UNUSED,
3156 struct internal_reloc *rel ATTRIBUTE_UNUSED,
3157 struct internal_syment *sym ATTRIBUTE_UNUSED,
3158 struct reloc_howto_struct *howto,
3159 bfd_vma val ATTRIBUTE_UNUSED,
3160 bfd_vma addend,
3161 bfd_vma *relocation,
3162 bfd_byte *contents ATTRIBUTE_UNUSED)
3163 {
3164 howto->pc_relative = true;
3165 howto->src_mask &= ~3;
3166 howto->dst_mask = howto->src_mask;
3167
3168 /* A PC relative reloc includes the section address. */
3169 addend += input_section->vma;
3170
3171 *relocation = val + addend;
3172 *relocation -= (input_section->output_section->vma
3173 + input_section->output_offset);
3174 return true;
3175 }
3176
3177 bool
xcoff_reloc_type_tls(bfd * input_bfd ATTRIBUTE_UNUSED,asection * input_section ATTRIBUTE_UNUSED,bfd * output_bfd ATTRIBUTE_UNUSED,struct internal_reloc * rel ATTRIBUTE_UNUSED,struct internal_syment * sym ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto,bfd_vma val,bfd_vma addend,bfd_vma * relocation,bfd_byte * contents ATTRIBUTE_UNUSED)3178 xcoff_reloc_type_tls (bfd *input_bfd ATTRIBUTE_UNUSED,
3179 asection *input_section ATTRIBUTE_UNUSED,
3180 bfd *output_bfd ATTRIBUTE_UNUSED,
3181 struct internal_reloc *rel ATTRIBUTE_UNUSED,
3182 struct internal_syment *sym ATTRIBUTE_UNUSED,
3183 struct reloc_howto_struct *howto,
3184 bfd_vma val,
3185 bfd_vma addend,
3186 bfd_vma *relocation,
3187 bfd_byte *contents ATTRIBUTE_UNUSED)
3188 {
3189 struct xcoff_link_hash_entry *h;
3190
3191 if (0 > rel->r_symndx)
3192 return false;
3193
3194 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
3195
3196 /* FIXME: R_TLSML is targeting a internal TOC symbol, which will
3197 make the following checks failing. It should be moved with
3198 R_TLSM bellow once it works. */
3199 if (howto->type == R_TLSML)
3200 {
3201 *relocation = 0;
3202 return true;
3203 }
3204
3205 /* FIXME: h is sometimes null, if the TLS symbol is not exported. */
3206 if (!h)
3207 {
3208 _bfd_error_handler
3209 (_("%pB: TLS relocation at (0x%" BFD_VMA_FMT "x) over "
3210 "internal symbols (C_HIDEXT) not yet possible\n"),
3211 input_bfd, rel->r_vaddr);
3212 return false;
3213 }
3214
3215
3216 /* TLS relocations must target a TLS symbol. */
3217 if (h->smclas != XMC_TL && h->smclas != XMC_UL)
3218 {
3219 _bfd_error_handler
3220 (_("%pB: TLS relocation at (0x%" BFD_VMA_FMT "x) over "
3221 "non-TLS symbol %s (0x%x)\n"),
3222 input_bfd, rel->r_vaddr, h->root.root.string, h->smclas);
3223 return false;
3224 }
3225
3226 /* Local TLS relocations must target a local symbol, ie
3227 non-imported. */
3228 if ((rel->r_type == R_TLS_LD || rel->r_type == R_TLS_LE)
3229 && (((h->flags & XCOFF_DEF_REGULAR) == 0
3230 && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
3231 || (h->flags & XCOFF_IMPORT) != 0))
3232 {
3233 _bfd_error_handler
3234 (_("%pB: TLS local relocation at (0x%" BFD_VMA_FMT "x) over "
3235 "imported symbol %s\n"),
3236 input_bfd, rel->r_vaddr, h->root.root.string);
3237 return false;
3238 }
3239
3240 /* R_TLSM and R_TLSML are relocations used by the loader.
3241 The value must be 0.
3242 FIXME: move R_TLSML here. */
3243 if (howto->type == R_TLSM)
3244 {
3245 *relocation = 0;
3246 return true;
3247 }
3248
3249 /* Other TLS relocations aims to put offsets from TLS pointers
3250 starting at -0x7c00 (or -0x7800 in XCOFF64). It becomes a
3251 simple R_POS relocation as long as .tdata and .tbss addresses
3252 start at the same value. This is done in aix ld scripts.
3253 TODO: implement optimization when tls size is < 62K. */
3254 *relocation = val + addend;
3255
3256 return true;
3257 }
3258
3259 static bool
xcoff_complain_overflow_dont_func(bfd * input_bfd ATTRIBUTE_UNUSED,bfd_vma val ATTRIBUTE_UNUSED,bfd_vma relocation ATTRIBUTE_UNUSED,struct reloc_howto_struct * howto ATTRIBUTE_UNUSED)3260 xcoff_complain_overflow_dont_func (bfd *input_bfd ATTRIBUTE_UNUSED,
3261 bfd_vma val ATTRIBUTE_UNUSED,
3262 bfd_vma relocation ATTRIBUTE_UNUSED,
3263 struct reloc_howto_struct *
3264 howto ATTRIBUTE_UNUSED)
3265 {
3266 return false;
3267 }
3268
3269 static bool
xcoff_complain_overflow_bitfield_func(bfd * input_bfd,bfd_vma val,bfd_vma relocation,struct reloc_howto_struct * howto)3270 xcoff_complain_overflow_bitfield_func (bfd *input_bfd,
3271 bfd_vma val,
3272 bfd_vma relocation,
3273 struct reloc_howto_struct *howto)
3274 {
3275 bfd_vma fieldmask, signmask, ss;
3276 bfd_vma a, b, sum;
3277
3278 /* Get the values to be added together. For signed and unsigned
3279 relocations, we assume that all values should be truncated to
3280 the size of an address. For bitfields, all the bits matter.
3281 See also bfd_check_overflow. */
3282 fieldmask = N_ONES (howto->bitsize);
3283 a = relocation;
3284 b = val & howto->src_mask;
3285
3286 /* Much like unsigned, except no trimming with addrmask. In
3287 addition, the sum overflows if there is a carry out of
3288 the bfd_vma, i.e., the sum is less than either input
3289 operand. */
3290 a >>= howto->rightshift;
3291 b >>= howto->bitpos;
3292
3293 /* Bitfields are sometimes used for signed numbers; for
3294 example, a 13-bit field sometimes represents values in
3295 0..8191 and sometimes represents values in -4096..4095.
3296 If the field is signed and a is -4095 (0x1001) and b is
3297 -1 (0x1fff), the sum is -4096 (0x1000), but (0x1001 +
3298 0x1fff is 0x3000). It's not clear how to handle this
3299 everywhere, since there is not way to know how many bits
3300 are significant in the relocation, but the original code
3301 assumed that it was fully sign extended, and we will keep
3302 that assumption. */
3303 signmask = (fieldmask >> 1) + 1;
3304
3305 if ((a & ~ fieldmask) != 0)
3306 {
3307 /* Some bits out of the field are set. This might not
3308 be a problem: if this is a signed bitfield, it is OK
3309 iff all the high bits are set, including the sign
3310 bit. We'll try setting all but the most significant
3311 bit in the original relocation value: if this is all
3312 ones, we are OK, assuming a signed bitfield. */
3313 ss = (signmask << howto->rightshift) - 1;
3314 if ((ss | relocation) != ~ (bfd_vma) 0)
3315 return true;
3316 a &= fieldmask;
3317 }
3318
3319 /* We just assume (b & ~ fieldmask) == 0. */
3320
3321 /* We explicitly permit wrap around if this relocation
3322 covers the high bit of an address. The Linux kernel
3323 relies on it, and it is the only way to write assembler
3324 code which can run when loaded at a location 0x80000000
3325 away from the location at which it is linked. */
3326 if ((unsigned) howto->bitsize + howto->rightshift
3327 == bfd_arch_bits_per_address (input_bfd))
3328 return false;
3329
3330 sum = a + b;
3331 if (sum < a || (sum & ~ fieldmask) != 0)
3332 {
3333 /* There was a carry out, or the field overflow. Test
3334 for signed operands again. Here is the overflow test
3335 is as for complain_overflow_signed. */
3336 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
3337 return true;
3338 }
3339
3340 return false;
3341 }
3342
3343 static bool
xcoff_complain_overflow_signed_func(bfd * input_bfd,bfd_vma val,bfd_vma relocation,struct reloc_howto_struct * howto)3344 xcoff_complain_overflow_signed_func (bfd *input_bfd,
3345 bfd_vma val,
3346 bfd_vma relocation,
3347 struct reloc_howto_struct *howto)
3348 {
3349 bfd_vma addrmask, fieldmask, signmask, ss;
3350 bfd_vma a, b, sum;
3351
3352 /* Get the values to be added together. For signed and unsigned
3353 relocations, we assume that all values should be truncated to
3354 the size of an address. For bitfields, all the bits matter.
3355 See also bfd_check_overflow. */
3356 fieldmask = N_ONES (howto->bitsize);
3357 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
3358 a = relocation;
3359 b = val & howto->src_mask;
3360
3361 a = (a & addrmask) >> howto->rightshift;
3362
3363 /* If any sign bits are set, all sign bits must be set.
3364 That is, A must be a valid negative address after
3365 shifting. */
3366 signmask = ~ (fieldmask >> 1);
3367 ss = a & signmask;
3368 if (ss != 0 && ss != ((addrmask >> howto->rightshift) & signmask))
3369 return true;
3370
3371 /* We only need this next bit of code if the sign bit of B
3372 is below the sign bit of A. This would only happen if
3373 SRC_MASK had fewer bits than BITSIZE. Note that if
3374 SRC_MASK has more bits than BITSIZE, we can get into
3375 trouble; we would need to verify that B is in range, as
3376 we do for A above. */
3377 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
3378 if ((b & signmask) != 0)
3379 {
3380 /* Set all the bits above the sign bit. */
3381 b -= signmask <<= 1;
3382 }
3383
3384 b = (b & addrmask) >> howto->bitpos;
3385
3386 /* Now we can do the addition. */
3387 sum = a + b;
3388
3389 /* See if the result has the correct sign. Bits above the
3390 sign bit are junk now; ignore them. If the sum is
3391 positive, make sure we did not have all negative inputs;
3392 if the sum is negative, make sure we did not have all
3393 positive inputs. The test below looks only at the sign
3394 bits, and it really just
3395 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
3396 */
3397 signmask = (fieldmask >> 1) + 1;
3398 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
3399 return true;
3400
3401 return false;
3402 }
3403
3404 static bool
xcoff_complain_overflow_unsigned_func(bfd * input_bfd,bfd_vma val,bfd_vma relocation,struct reloc_howto_struct * howto)3405 xcoff_complain_overflow_unsigned_func (bfd *input_bfd,
3406 bfd_vma val,
3407 bfd_vma relocation,
3408 struct reloc_howto_struct *howto)
3409 {
3410 bfd_vma addrmask, fieldmask;
3411 bfd_vma a, b, sum;
3412
3413 /* Get the values to be added together. For signed and unsigned
3414 relocations, we assume that all values should be truncated to
3415 the size of an address. For bitfields, all the bits matter.
3416 See also bfd_check_overflow. */
3417 fieldmask = N_ONES (howto->bitsize);
3418 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
3419 a = relocation;
3420 b = val & howto->src_mask;
3421
3422 /* Checking for an unsigned overflow is relatively easy:
3423 trim the addresses and add, and trim the result as well.
3424 Overflow is normally indicated when the result does not
3425 fit in the field. However, we also need to consider the
3426 case when, e.g., fieldmask is 0x7fffffff or smaller, an
3427 input is 0x80000000, and bfd_vma is only 32 bits; then we
3428 will get sum == 0, but there is an overflow, since the
3429 inputs did not fit in the field. Instead of doing a
3430 separate test, we can check for this by or-ing in the
3431 operands when testing for the sum overflowing its final
3432 field. */
3433 a = (a & addrmask) >> howto->rightshift;
3434 b = (b & addrmask) >> howto->bitpos;
3435 sum = (a + b) & addrmask;
3436 if ((a | b | sum) & ~ fieldmask)
3437 return true;
3438
3439 return false;
3440 }
3441
3442 /* This is the relocation function for the RS/6000/POWER/PowerPC.
3443 This is currently the only processor which uses XCOFF; I hope that
3444 will never change.
3445
3446 The original version was based on two documents:
3447 the PowerPC AIX Version 4 Application Binary Interface, First
3448 Edition (April 1992), and the PowerOpen ABI, Big-Endian
3449 32-Bit Hardware Implementation (June 30, 1994). Differences
3450 between the documents are noted below.
3451 Now, IBM has released an official documentation about XCOFF
3452 format:
3453 https://www.ibm.com/support/knowledgecenter/ssw_aix_72/filesreference/XCOFF.html
3454
3455 Unsupported r_type's
3456
3457 R_RTB:
3458 R_RRTBI:
3459 R_RRTBA:
3460
3461 These relocs are defined by the PowerPC ABI to be
3462 relative branches which use half of the difference
3463 between the symbol and the program counter. I can't
3464 quite figure out when this is useful. These relocs are
3465 not defined by the PowerOpen ABI.
3466
3467 Supported r_type's
3468
3469 R_POS:
3470 Simple positive relocation.
3471
3472 R_NEG:
3473 Simple negative relocation.
3474
3475 R_REL:
3476 Simple PC relative relocation.
3477
3478 R_TOC:
3479 TOC relative relocation. The value in the instruction in
3480 the input file is the offset from the input file TOC to
3481 the desired location. We want the offset from the final
3482 TOC to the desired location. We have:
3483 isym = iTOC + in
3484 iinsn = in + o
3485 osym = oTOC + on
3486 oinsn = on + o
3487 so we must change insn by on - in.
3488 This relocation allows the linker to perform optimizations
3489 by transforming a load instruction into a add-immediate
3490 when possible. The relocation is, then, changed to R_TRLA
3491 in the output file.
3492 TODO: Currently, the optimisation isn't implemented.
3493
3494 R_TRL:
3495 TOC relative relocation. Same as R_TOC, except that
3496 the optimization isn't allowed
3497
3498 R_TRLA:
3499 TOC relative relocation. This is a TOC relative load
3500 address instruction which have been changed to an add-
3501 immediate instruction.
3502
3503 R_GL:
3504 GL linkage relocation. The value of this relocation
3505 is the address of the external symbol in the TOC
3506 section.
3507
3508 R_TCL:
3509 Local object TOC address. I can't figure out the
3510 difference between this and case R_GL.
3511
3512 R_RL:
3513 The PowerPC AIX ABI describes this as a load which may be
3514 changed to a load address. The PowerOpen ABI says this
3515 is the same as case R_POS.
3516
3517 R_RLA:
3518 The PowerPC AIX ABI describes this as a load address
3519 which may be changed to a load. The PowerOpen ABI says
3520 this is the same as R_POS.
3521
3522 R_REF:
3523 Not a relocation but a way to prevent the garbage
3524 collector of AIX linker to remove symbols.
3525 This is not needed in our case.
3526
3527 R_BA:
3528 The PowerOpen ABI says this is the same as R_RBA.
3529
3530 R_RBA:
3531 Absolute branch which may be modified to become a
3532 relative branch.
3533
3534 R_BR:
3535 The PowerOpen ABI says this is the same as R_RBR.
3536
3537 R_RBR:
3538 A relative branch which may be modified to become an
3539 absolute branch.
3540
3541 R_CAI:
3542 The PowerPC ABI defines this as an absolute call which
3543 may be modified to become a relative call. The PowerOpen
3544 ABI does not define this relocation type.
3545
3546 R_CREL:
3547 The PowerPC ABI defines this as a relative call which may
3548 be modified to become an absolute call. The PowerOpen
3549 ABI does not define this relocation type.
3550
3551 R_RBAC:
3552 The PowerPC ABI defines this as an absolute branch to a
3553 fixed address which may be modified to an absolute branch
3554 to a symbol. The PowerOpen ABI does not define this
3555 relocation type.
3556
3557 R_RBRC:
3558 The PowerPC ABI defines this as an absolute branch to a
3559 fixed address which may be modified to a relative branch.
3560 The PowerOpen ABI does not define this relocation type.
3561
3562 R_TLS:
3563 Thread-local storage relocation using general-dynamic
3564 model.
3565
3566 R_TLS_IE:
3567 Thread-local storage relocation using initial-exec model.
3568
3569 R_TLS_LD:
3570 Thread-local storage relocation using local-dynamic model.
3571
3572 R_TLS_LE:
3573 Thread-local storage relocation using local-exec model.
3574
3575 R_TLS:
3576 Tread-local storage relocation used by the loader.
3577
3578 R_TLSM:
3579 Tread-local storage relocation used by the loader.
3580
3581 R_TOCU:
3582 Upper TOC relative relocation. The value is the
3583 high-order 16 bit of a TOC relative relocation.
3584
3585 R_TOCL:
3586 Lower TOC relative relocation. The value is the
3587 low-order 16 bit of a TOC relative relocation.
3588 */
3589
3590 bool
xcoff_ppc_relocate_section(bfd * output_bfd,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,struct internal_reloc * relocs,struct internal_syment * syms,asection ** sections)3591 xcoff_ppc_relocate_section (bfd *output_bfd,
3592 struct bfd_link_info *info,
3593 bfd *input_bfd,
3594 asection *input_section,
3595 bfd_byte *contents,
3596 struct internal_reloc *relocs,
3597 struct internal_syment *syms,
3598 asection **sections)
3599 {
3600 struct internal_reloc *rel;
3601 struct internal_reloc *relend;
3602
3603 rel = relocs;
3604 relend = rel + input_section->reloc_count;
3605 for (; rel < relend; rel++)
3606 {
3607 long symndx;
3608 struct xcoff_link_hash_entry *h;
3609 struct internal_syment *sym;
3610 bfd_vma addend;
3611 bfd_vma val;
3612 struct reloc_howto_struct howto;
3613 bfd_vma relocation;
3614 bfd_vma value_to_relocate;
3615 bfd_vma address;
3616 bfd_byte *location;
3617
3618 /* Relocation type R_REF is a special relocation type which is
3619 merely used to prevent garbage collection from occurring for
3620 the csect including the symbol which it references. */
3621 if (rel->r_type == R_REF)
3622 continue;
3623
3624 /* Retrieve default value in HOWTO table and fix up according
3625 to r_size field, if it can be different.
3626 This should be made during relocation reading but the algorithms
3627 are expecting constant howtos. */
3628 memcpy (&howto, &xcoff_howto_table[rel->r_type], sizeof (howto));
3629 if (howto.bitsize != (rel->r_size & 0x1f) + 1)
3630 {
3631 switch (rel->r_type)
3632 {
3633 case R_POS:
3634 case R_NEG:
3635 howto.bitsize = (rel->r_size & 0x1f) + 1;
3636 howto.size = howto.bitsize > 16 ? 2 : 1;
3637 howto.src_mask = howto.dst_mask = N_ONES (howto.bitsize);
3638 break;
3639
3640 default:
3641 _bfd_error_handler
3642 (_("%pB: relocatation (%d) at (0x%" BFD_VMA_FMT "x) has wrong"
3643 " r_rsize (0x%x)\n"),
3644 input_bfd, rel->r_type, rel->r_vaddr, rel->r_size);
3645 return false;
3646 }
3647 }
3648
3649 howto.complain_on_overflow = (rel->r_size & 0x80
3650 ? complain_overflow_signed
3651 : complain_overflow_bitfield);
3652
3653 /* symbol */
3654 val = 0;
3655 addend = 0;
3656 h = NULL;
3657 sym = NULL;
3658 symndx = rel->r_symndx;
3659
3660 if (-1 != symndx)
3661 {
3662 asection *sec;
3663
3664 h = obj_xcoff_sym_hashes (input_bfd)[symndx];
3665 sym = syms + symndx;
3666 addend = - sym->n_value;
3667
3668 if (NULL == h)
3669 {
3670 sec = sections[symndx];
3671 /* Hack to make sure we use the right TOC anchor value
3672 if this reloc is against the TOC anchor. */
3673 if (sec->name[3] == '0'
3674 && strcmp (sec->name, ".tc0") == 0)
3675 val = xcoff_data (output_bfd)->toc;
3676 else
3677 val = (sec->output_section->vma
3678 + sec->output_offset
3679 + sym->n_value
3680 - sec->vma);
3681 }
3682 else
3683 {
3684 if (info->unresolved_syms_in_objects != RM_IGNORE
3685 && (h->flags & XCOFF_WAS_UNDEFINED) != 0)
3686 (*info->callbacks->undefined_symbol)
3687 (info, h->root.root.string,
3688 input_bfd, input_section,
3689 rel->r_vaddr - input_section->vma,
3690 info->unresolved_syms_in_objects == RM_DIAGNOSE &&
3691 !info->warn_unresolved_syms);
3692
3693 if (h->root.type == bfd_link_hash_defined
3694 || h->root.type == bfd_link_hash_defweak)
3695 {
3696 sec = h->root.u.def.section;
3697 val = (h->root.u.def.value
3698 + sec->output_section->vma
3699 + sec->output_offset);
3700 }
3701 else if (h->root.type == bfd_link_hash_common)
3702 {
3703 sec = h->root.u.c.p->section;
3704 val = (sec->output_section->vma
3705 + sec->output_offset);
3706
3707 }
3708 else
3709 {
3710 BFD_ASSERT (bfd_link_relocatable (info)
3711 || (info->static_link
3712 && (h->flags & XCOFF_WAS_UNDEFINED) != 0)
3713 || (h->flags & XCOFF_DEF_DYNAMIC) != 0
3714 || (h->flags & XCOFF_IMPORT) != 0);
3715 }
3716 }
3717 }
3718
3719 if (rel->r_type >= XCOFF_MAX_CALCULATE_RELOCATION
3720 || !((*xcoff_calculate_relocation[rel->r_type])
3721 (input_bfd, input_section, output_bfd, rel, sym, &howto, val,
3722 addend, &relocation, contents)))
3723 return false;
3724
3725 /* address */
3726 address = rel->r_vaddr - input_section->vma;
3727 location = contents + address;
3728
3729 if (address > input_section->size)
3730 abort ();
3731
3732 /* Get the value we are going to relocate. */
3733 if (1 == howto.size)
3734 value_to_relocate = bfd_get_16 (input_bfd, location);
3735 else
3736 value_to_relocate = bfd_get_32 (input_bfd, location);
3737
3738 /* overflow.
3739
3740 FIXME: We may drop bits during the addition
3741 which we don't check for. We must either check at every single
3742 operation, which would be tedious, or we must do the computations
3743 in a type larger than bfd_vma, which would be inefficient. */
3744
3745 if (((*xcoff_complain_overflow[howto.complain_on_overflow])
3746 (input_bfd, value_to_relocate, relocation, &howto)))
3747 {
3748 const char *name;
3749 char buf[SYMNMLEN + 1];
3750 char reloc_type_name[10];
3751
3752 if (symndx == -1)
3753 {
3754 name = "*ABS*";
3755 }
3756 else if (h != NULL)
3757 {
3758 name = NULL;
3759 }
3760 else
3761 {
3762 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
3763 if (name == NULL)
3764 name = "UNKNOWN";
3765 }
3766 sprintf (reloc_type_name, "0x%02x", rel->r_type);
3767
3768 (*info->callbacks->reloc_overflow)
3769 (info, (h ? &h->root : NULL), name, reloc_type_name,
3770 (bfd_vma) 0, input_bfd, input_section,
3771 rel->r_vaddr - input_section->vma);
3772 }
3773
3774 /* Add RELOCATION to the right bits of VALUE_TO_RELOCATE. */
3775 value_to_relocate = ((value_to_relocate & ~howto.dst_mask)
3776 | (((value_to_relocate & howto.src_mask)
3777 + relocation) & howto.dst_mask));
3778
3779 /* Put the value back in the object file. */
3780 if (1 == howto.size)
3781 bfd_put_16 (input_bfd, value_to_relocate, location);
3782 else
3783 bfd_put_32 (input_bfd, value_to_relocate, location);
3784 }
3785
3786 return true;
3787 }
3788
3789 /* gcc-8 warns (*) on all the strncpy calls in this function about
3790 possible string truncation. The "truncation" is not a bug. We
3791 have an external representation of structs with fields that are not
3792 necessarily NULL terminated and corresponding internal
3793 representation fields that are one larger so that they can always
3794 be NULL terminated.
3795 gcc versions between 4.2 and 4.6 do not allow pragma control of
3796 diagnostics inside functions, giving a hard error if you try to use
3797 the finer control available with later versions.
3798 gcc prior to 4.2 warns about diagnostic push and pop.
3799 gcc-5, gcc-6 and gcc-7 warn that -Wstringop-truncation is unknown,
3800 unless you also add #pragma GCC diagnostic ignored "-Wpragma".
3801 (*) Depending on your system header files! */
3802 #if GCC_VERSION >= 8000
3803 # pragma GCC diagnostic push
3804 # pragma GCC diagnostic ignored "-Wstringop-truncation"
3805 #endif
3806 static bool
_bfd_xcoff_put_ldsymbol_name(bfd * abfd ATTRIBUTE_UNUSED,struct xcoff_loader_info * ldinfo,struct internal_ldsym * ldsym,const char * name)3807 _bfd_xcoff_put_ldsymbol_name (bfd *abfd ATTRIBUTE_UNUSED,
3808 struct xcoff_loader_info *ldinfo,
3809 struct internal_ldsym *ldsym,
3810 const char *name)
3811 {
3812 size_t len;
3813 len = strlen (name);
3814
3815 if (len <= SYMNMLEN)
3816 strncpy (ldsym->_l._l_name, name, SYMNMLEN);
3817 else
3818 {
3819 if (ldinfo->string_size + len + 3 > ldinfo->string_alc)
3820 {
3821 bfd_size_type newalc;
3822 char *newstrings;
3823
3824 newalc = ldinfo->string_alc * 2;
3825 if (newalc == 0)
3826 newalc = 32;
3827 while (ldinfo->string_size + len + 3 > newalc)
3828 newalc *= 2;
3829
3830 newstrings = bfd_realloc (ldinfo->strings, newalc);
3831 if (newstrings == NULL)
3832 {
3833 ldinfo->failed = true;
3834 return false;
3835 }
3836 ldinfo->string_alc = newalc;
3837 ldinfo->strings = newstrings;
3838 }
3839
3840 bfd_put_16 (ldinfo->output_bfd, (bfd_vma) (len + 1),
3841 ldinfo->strings + ldinfo->string_size);
3842 strcpy (ldinfo->strings + ldinfo->string_size + 2, name);
3843 ldsym->_l._l_l._l_zeroes = 0;
3844 ldsym->_l._l_l._l_offset = ldinfo->string_size + 2;
3845 ldinfo->string_size += len + 3;
3846 }
3847
3848 return true;
3849 }
3850
3851 static bool
_bfd_xcoff_put_symbol_name(struct bfd_link_info * info,struct bfd_strtab_hash * strtab,struct internal_syment * sym,const char * name)3852 _bfd_xcoff_put_symbol_name (struct bfd_link_info *info,
3853 struct bfd_strtab_hash *strtab,
3854 struct internal_syment *sym,
3855 const char *name)
3856 {
3857 if (strlen (name) <= SYMNMLEN)
3858 {
3859 strncpy (sym->_n._n_name, name, SYMNMLEN);
3860 }
3861 else
3862 {
3863 bool hash;
3864 bfd_size_type indx;
3865
3866 hash = !info->traditional_format;
3867 indx = _bfd_stringtab_add (strtab, name, hash, false);
3868 if (indx == (bfd_size_type) -1)
3869 return false;
3870 sym->_n._n_n._n_zeroes = 0;
3871 sym->_n._n_n._n_offset = STRING_SIZE_SIZE + indx;
3872 }
3873 return true;
3874 }
3875 #if GCC_VERSION >= 8000
3876 # pragma GCC diagnostic pop
3877 #endif
3878
3879 static asection *
xcoff_create_csect_from_smclas(bfd * abfd,union internal_auxent * aux,const char * symbol_name)3880 xcoff_create_csect_from_smclas (bfd *abfd,
3881 union internal_auxent *aux,
3882 const char *symbol_name)
3883 {
3884 asection *return_value = NULL;
3885
3886 /* .sv64 = x_smclas == 17
3887 This is an invalid csect for 32 bit apps. */
3888 static const char * const names[] =
3889 {
3890 ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo", /* 0 - 7 */
3891 ".sv", ".bs", ".ds", ".uc", ".ti", ".tb", NULL, ".tc0", /* 8 - 15 */
3892 ".td", NULL, ".sv3264", NULL, ".tl", ".ul", ".te"
3893 };
3894
3895 if ((aux->x_csect.x_smclas < ARRAY_SIZE (names))
3896 && (NULL != names[aux->x_csect.x_smclas]))
3897 {
3898 return_value = bfd_make_section_anyway
3899 (abfd, names[aux->x_csect.x_smclas]);
3900 }
3901 else
3902 {
3903 _bfd_error_handler
3904 /* xgettext: c-format */
3905 (_("%pB: symbol `%s' has unrecognized smclas %d"),
3906 abfd, symbol_name, aux->x_csect.x_smclas);
3907 bfd_set_error (bfd_error_bad_value);
3908 }
3909
3910 return return_value;
3911 }
3912
3913 static bool
xcoff_is_lineno_count_overflow(bfd * abfd ATTRIBUTE_UNUSED,bfd_vma value)3914 xcoff_is_lineno_count_overflow (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma value)
3915 {
3916 if (0xffff <= value)
3917 return true;
3918
3919 return false;
3920 }
3921
3922 static bool
xcoff_is_reloc_count_overflow(bfd * abfd ATTRIBUTE_UNUSED,bfd_vma value)3923 xcoff_is_reloc_count_overflow (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma value)
3924 {
3925 if (0xffff <= value)
3926 return true;
3927
3928 return false;
3929 }
3930
3931 static bfd_vma
xcoff_loader_symbol_offset(bfd * abfd,struct internal_ldhdr * ldhdr ATTRIBUTE_UNUSED)3932 xcoff_loader_symbol_offset (bfd *abfd,
3933 struct internal_ldhdr *ldhdr ATTRIBUTE_UNUSED)
3934 {
3935 return bfd_xcoff_ldhdrsz (abfd);
3936 }
3937
3938 static bfd_vma
xcoff_loader_reloc_offset(bfd * abfd,struct internal_ldhdr * ldhdr)3939 xcoff_loader_reloc_offset (bfd *abfd, struct internal_ldhdr *ldhdr)
3940 {
3941 return bfd_xcoff_ldhdrsz (abfd) + ldhdr->l_nsyms * bfd_xcoff_ldsymsz (abfd);
3942 }
3943
3944 static bool
xcoff_generate_rtinit(bfd * abfd,const char * init,const char * fini,bool rtld)3945 xcoff_generate_rtinit (bfd *abfd, const char *init, const char *fini,
3946 bool rtld)
3947 {
3948 bfd_byte filehdr_ext[FILHSZ];
3949 bfd_byte scnhdr_ext[SCNHSZ];
3950 bfd_byte syment_ext[SYMESZ * 10];
3951 bfd_byte reloc_ext[RELSZ * 3];
3952 bfd_byte *data_buffer;
3953 bfd_size_type data_buffer_size;
3954 bfd_byte *string_table = NULL, *st_tmp = NULL;
3955 bfd_size_type string_table_size;
3956 bfd_vma val;
3957 size_t initsz, finisz;
3958 struct internal_filehdr filehdr;
3959 struct internal_scnhdr scnhdr;
3960 struct internal_syment syment;
3961 union internal_auxent auxent;
3962 struct internal_reloc reloc;
3963
3964 char *data_name = ".data";
3965 char *rtinit_name = "__rtinit";
3966 char *rtld_name = "__rtld";
3967
3968 if (! bfd_xcoff_rtinit_size (abfd))
3969 return false;
3970
3971 initsz = (init == NULL ? 0 : 1 + strlen (init));
3972 finisz = (fini == NULL ? 0 : 1 + strlen (fini));
3973
3974 /* file header */
3975 memset (filehdr_ext, 0, FILHSZ);
3976 memset (&filehdr, 0, sizeof (struct internal_filehdr));
3977 filehdr.f_magic = bfd_xcoff_magic_number (abfd);
3978 filehdr.f_nscns = 1;
3979 filehdr.f_timdat = 0;
3980 filehdr.f_nsyms = 0; /* at least 6, no more than 10 */
3981 filehdr.f_symptr = 0; /* set below */
3982 filehdr.f_opthdr = 0;
3983 filehdr.f_flags = 0;
3984
3985 /* section header */
3986 memset (scnhdr_ext, 0, SCNHSZ);
3987 memset (&scnhdr, 0, sizeof (struct internal_scnhdr));
3988 memcpy (scnhdr.s_name, data_name, strlen (data_name));
3989 scnhdr.s_paddr = 0;
3990 scnhdr.s_vaddr = 0;
3991 scnhdr.s_size = 0; /* set below */
3992 scnhdr.s_scnptr = FILHSZ + SCNHSZ;
3993 scnhdr.s_relptr = 0; /* set below */
3994 scnhdr.s_lnnoptr = 0;
3995 scnhdr.s_nreloc = 0; /* either 1 or 2 */
3996 scnhdr.s_nlnno = 0;
3997 scnhdr.s_flags = STYP_DATA;
3998
3999 /* .data
4000 0x0000 0x00000000 : rtl
4001 0x0004 0x00000010 : offset to init, or 0
4002 0x0008 0x00000028 : offset to fini, or 0
4003 0x000C 0x0000000C : size of descriptor
4004 0x0010 0x00000000 : init, needs a reloc
4005 0x0014 0x00000040 : offset to init name
4006 0x0018 0x00000000 : flags, padded to a word
4007 0x001C 0x00000000 : empty init
4008 0x0020 0x00000000 :
4009 0x0024 0x00000000 :
4010 0x0028 0x00000000 : fini, needs a reloc
4011 0x002C 0x00000??? : offset to fini name
4012 0x0030 0x00000000 : flags, padded to a word
4013 0x0034 0x00000000 : empty fini
4014 0x0038 0x00000000 :
4015 0x003C 0x00000000 :
4016 0x0040 init name
4017 0x0040 + initsz fini name */
4018
4019 data_buffer_size = 0x0040 + initsz + finisz;
4020 data_buffer_size = (data_buffer_size + 7) &~ (bfd_size_type) 7;
4021 data_buffer = NULL;
4022 data_buffer = (bfd_byte *) bfd_zmalloc (data_buffer_size);
4023 if (data_buffer == NULL)
4024 return false;
4025
4026 if (initsz)
4027 {
4028 val = 0x10;
4029 bfd_h_put_32 (abfd, val, &data_buffer[0x04]);
4030 val = 0x40;
4031 bfd_h_put_32 (abfd, val, &data_buffer[0x14]);
4032 memcpy (&data_buffer[val], init, initsz);
4033 }
4034
4035 if (finisz)
4036 {
4037 val = 0x28;
4038 bfd_h_put_32 (abfd, val, &data_buffer[0x08]);
4039 val = 0x40 + initsz;
4040 bfd_h_put_32 (abfd, val, &data_buffer[0x2C]);
4041 memcpy (&data_buffer[val], fini, finisz);
4042 }
4043
4044 val = 0x0C;
4045 bfd_h_put_32 (abfd, val, &data_buffer[0x0C]);
4046
4047 scnhdr.s_size = data_buffer_size;
4048
4049 /* string table */
4050 string_table_size = 0;
4051 if (initsz > 9)
4052 string_table_size += initsz;
4053 if (finisz > 9)
4054 string_table_size += finisz;
4055 if (string_table_size)
4056 {
4057 string_table_size += 4;
4058 string_table = (bfd_byte *) bfd_zmalloc (string_table_size);
4059 if (string_table == NULL)
4060 return false;
4061
4062 val = string_table_size;
4063 bfd_h_put_32 (abfd, val, &string_table[0]);
4064 st_tmp = string_table + 4;
4065 }
4066
4067 /* symbols
4068 0. .data csect
4069 2. __rtinit
4070 4. init function
4071 6. fini function
4072 8. __rtld */
4073 memset (syment_ext, 0, 10 * SYMESZ);
4074 memset (reloc_ext, 0, 3 * RELSZ);
4075
4076 /* .data csect */
4077 memset (&syment, 0, sizeof (struct internal_syment));
4078 memset (&auxent, 0, sizeof (union internal_auxent));
4079 memcpy (syment._n._n_name, data_name, strlen (data_name));
4080 syment.n_scnum = 1;
4081 syment.n_sclass = C_HIDEXT;
4082 syment.n_numaux = 1;
4083 auxent.x_csect.x_scnlen.l = data_buffer_size;
4084 auxent.x_csect.x_smtyp = 3 << 3 | XTY_SD;
4085 auxent.x_csect.x_smclas = XMC_RW;
4086 bfd_coff_swap_sym_out (abfd, &syment,
4087 &syment_ext[filehdr.f_nsyms * SYMESZ]);
4088 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
4089 syment.n_numaux,
4090 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
4091 filehdr.f_nsyms += 2;
4092
4093 /* __rtinit */
4094 memset (&syment, 0, sizeof (struct internal_syment));
4095 memset (&auxent, 0, sizeof (union internal_auxent));
4096 memcpy (syment._n._n_name, rtinit_name, strlen (rtinit_name));
4097 syment.n_scnum = 1;
4098 syment.n_sclass = C_EXT;
4099 syment.n_numaux = 1;
4100 auxent.x_csect.x_smtyp = XTY_LD;
4101 auxent.x_csect.x_smclas = XMC_RW;
4102 bfd_coff_swap_sym_out (abfd, &syment,
4103 &syment_ext[filehdr.f_nsyms * SYMESZ]);
4104 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
4105 syment.n_numaux,
4106 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
4107 filehdr.f_nsyms += 2;
4108
4109 /* init */
4110 if (initsz)
4111 {
4112 memset (&syment, 0, sizeof (struct internal_syment));
4113 memset (&auxent, 0, sizeof (union internal_auxent));
4114
4115 if (initsz > 9)
4116 {
4117 syment._n._n_n._n_offset = st_tmp - string_table;
4118 memcpy (st_tmp, init, initsz);
4119 st_tmp += initsz;
4120 }
4121 else
4122 memcpy (syment._n._n_name, init, initsz - 1);
4123
4124 syment.n_sclass = C_EXT;
4125 syment.n_numaux = 1;
4126 bfd_coff_swap_sym_out (abfd, &syment,
4127 &syment_ext[filehdr.f_nsyms * SYMESZ]);
4128 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
4129 syment.n_numaux,
4130 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
4131
4132 /* reloc */
4133 memset (&reloc, 0, sizeof (struct internal_reloc));
4134 reloc.r_vaddr = 0x0010;
4135 reloc.r_symndx = filehdr.f_nsyms;
4136 reloc.r_type = R_POS;
4137 reloc.r_size = 31;
4138 bfd_coff_swap_reloc_out (abfd, &reloc, &reloc_ext[0]);
4139
4140 filehdr.f_nsyms += 2;
4141 scnhdr.s_nreloc += 1;
4142 }
4143
4144 /* fini */
4145 if (finisz)
4146 {
4147 memset (&syment, 0, sizeof (struct internal_syment));
4148 memset (&auxent, 0, sizeof (union internal_auxent));
4149
4150 if (finisz > 9)
4151 {
4152 syment._n._n_n._n_offset = st_tmp - string_table;
4153 memcpy (st_tmp, fini, finisz);
4154 st_tmp += finisz;
4155 }
4156 else
4157 memcpy (syment._n._n_name, fini, finisz - 1);
4158
4159 syment.n_sclass = C_EXT;
4160 syment.n_numaux = 1;
4161 bfd_coff_swap_sym_out (abfd, &syment,
4162 &syment_ext[filehdr.f_nsyms * SYMESZ]);
4163 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
4164 syment.n_numaux,
4165 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
4166
4167 /* reloc */
4168 memset (&reloc, 0, sizeof (struct internal_reloc));
4169 reloc.r_vaddr = 0x0028;
4170 reloc.r_symndx = filehdr.f_nsyms;
4171 reloc.r_type = R_POS;
4172 reloc.r_size = 31;
4173 bfd_coff_swap_reloc_out (abfd, &reloc,
4174 &reloc_ext[scnhdr.s_nreloc * RELSZ]);
4175
4176 filehdr.f_nsyms += 2;
4177 scnhdr.s_nreloc += 1;
4178 }
4179
4180 if (rtld)
4181 {
4182 memset (&syment, 0, sizeof (struct internal_syment));
4183 memset (&auxent, 0, sizeof (union internal_auxent));
4184 memcpy (syment._n._n_name, rtld_name, strlen (rtld_name));
4185 syment.n_sclass = C_EXT;
4186 syment.n_numaux = 1;
4187 bfd_coff_swap_sym_out (abfd, &syment,
4188 &syment_ext[filehdr.f_nsyms * SYMESZ]);
4189 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
4190 syment.n_numaux,
4191 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
4192
4193 /* reloc */
4194 memset (&reloc, 0, sizeof (struct internal_reloc));
4195 reloc.r_vaddr = 0x0000;
4196 reloc.r_symndx = filehdr.f_nsyms;
4197 reloc.r_type = R_POS;
4198 reloc.r_size = 31;
4199 bfd_coff_swap_reloc_out (abfd, &reloc,
4200 &reloc_ext[scnhdr.s_nreloc * RELSZ]);
4201
4202 filehdr.f_nsyms += 2;
4203 scnhdr.s_nreloc += 1;
4204 }
4205
4206 scnhdr.s_relptr = scnhdr.s_scnptr + data_buffer_size;
4207 filehdr.f_symptr = scnhdr.s_relptr + scnhdr.s_nreloc * RELSZ;
4208
4209 bfd_coff_swap_filehdr_out (abfd, &filehdr, filehdr_ext);
4210 bfd_bwrite (filehdr_ext, FILHSZ, abfd);
4211 bfd_coff_swap_scnhdr_out (abfd, &scnhdr, scnhdr_ext);
4212 bfd_bwrite (scnhdr_ext, SCNHSZ, abfd);
4213 bfd_bwrite (data_buffer, data_buffer_size, abfd);
4214 bfd_bwrite (reloc_ext, scnhdr.s_nreloc * RELSZ, abfd);
4215 bfd_bwrite (syment_ext, filehdr.f_nsyms * SYMESZ, abfd);
4216 bfd_bwrite (string_table, string_table_size, abfd);
4217
4218 free (data_buffer);
4219 data_buffer = NULL;
4220
4221 return true;
4222 }
4223
4224
4225 static reloc_howto_type xcoff_dynamic_reloc =
4226 HOWTO (0, /* type */
4227 0, /* rightshift */
4228 2, /* size (0 = byte, 1 = short, 2 = long) */
4229 32, /* bitsize */
4230 false, /* pc_relative */
4231 0, /* bitpos */
4232 complain_overflow_bitfield, /* complain_on_overflow */
4233 0, /* special_function */
4234 "R_POS", /* name */
4235 true, /* partial_inplace */
4236 0xffffffff, /* src_mask */
4237 0xffffffff, /* dst_mask */
4238 false); /* pcrel_offset */
4239
4240 /* glink
4241
4242 The first word of global linkage code must be modified by filling in
4243 the correct TOC offset. */
4244
4245 static const unsigned long xcoff_glink_code[9] =
4246 {
4247 0x81820000, /* lwz r12,0(r2) */
4248 0x90410014, /* stw r2,20(r1) */
4249 0x800c0000, /* lwz r0,0(r12) */
4250 0x804c0004, /* lwz r2,4(r12) */
4251 0x7c0903a6, /* mtctr r0 */
4252 0x4e800420, /* bctr */
4253 0x00000000, /* start of traceback table */
4254 0x000c8000, /* traceback table */
4255 0x00000000, /* traceback table */
4256 };
4257
4258 /* Table to convert DWARF flags to section names. */
4259
4260 const struct xcoff_dwsect_name xcoff_dwsect_names[] = {
4261 { SSUBTYP_DWINFO, ".dwinfo", true },
4262 { SSUBTYP_DWLINE, ".dwline", true },
4263 { SSUBTYP_DWPBNMS, ".dwpbnms", true },
4264 { SSUBTYP_DWPBTYP, ".dwpbtyp", true },
4265 { SSUBTYP_DWARNGE, ".dwarnge", true },
4266 { SSUBTYP_DWABREV, ".dwabrev", false },
4267 { SSUBTYP_DWSTR, ".dwstr", true },
4268 { SSUBTYP_DWRNGES, ".dwrnges", true },
4269 { SSUBTYP_DWLOC, ".dwloc", true },
4270 { SSUBTYP_DWFRAME, ".dwframe", true },
4271 { SSUBTYP_DWMAC, ".dwmac", true }
4272 };
4273
4274 /* For generic entry points. */
4275 #define _bfd_xcoff_close_and_cleanup _bfd_archive_close_and_cleanup
4276 #define _bfd_xcoff_bfd_free_cached_info _bfd_bool_bfd_true
4277 #define _bfd_xcoff_new_section_hook coff_new_section_hook
4278 #define _bfd_xcoff_get_section_contents _bfd_generic_get_section_contents
4279 #define _bfd_xcoff_get_section_contents_in_window \
4280 _bfd_generic_get_section_contents_in_window
4281
4282 /* For copy private data entry points. */
4283 #define _bfd_xcoff_bfd_copy_private_bfd_data \
4284 _bfd_xcoff_copy_private_bfd_data
4285 #define _bfd_xcoff_bfd_merge_private_bfd_data \
4286 _bfd_generic_bfd_merge_private_bfd_data
4287 #define _bfd_xcoff_bfd_copy_private_section_data \
4288 _bfd_generic_bfd_copy_private_section_data
4289 #define _bfd_xcoff_bfd_copy_private_symbol_data \
4290 _bfd_generic_bfd_copy_private_symbol_data
4291 #define _bfd_xcoff_bfd_copy_private_header_data \
4292 _bfd_generic_bfd_copy_private_header_data
4293 #define _bfd_xcoff_bfd_set_private_flags \
4294 _bfd_generic_bfd_set_private_flags
4295 #define _bfd_xcoff_bfd_print_private_bfd_data \
4296 _bfd_generic_bfd_print_private_bfd_data
4297
4298 /* For archive entry points. */
4299 #define _bfd_xcoff_slurp_extended_name_table \
4300 _bfd_noarchive_slurp_extended_name_table
4301 #define _bfd_xcoff_construct_extended_name_table \
4302 _bfd_noarchive_construct_extended_name_table
4303 #define _bfd_xcoff_truncate_arname bfd_dont_truncate_arname
4304 #define _bfd_xcoff_write_ar_hdr _bfd_generic_write_ar_hdr
4305 #define _bfd_xcoff_get_elt_at_index _bfd_generic_get_elt_at_index
4306 #define _bfd_xcoff_generic_stat_arch_elt _bfd_xcoff_stat_arch_elt
4307 #define _bfd_xcoff_update_armap_timestamp _bfd_bool_bfd_true
4308
4309 /* For symbols entry points. */
4310 #define _bfd_xcoff_get_symtab_upper_bound coff_get_symtab_upper_bound
4311 #define _bfd_xcoff_canonicalize_symtab coff_canonicalize_symtab
4312 #define _bfd_xcoff_make_empty_symbol coff_make_empty_symbol
4313 #define _bfd_xcoff_print_symbol coff_print_symbol
4314 #define _bfd_xcoff_get_symbol_info coff_get_symbol_info
4315 #define _bfd_xcoff_get_symbol_version_string \
4316 _bfd_nosymbols_get_symbol_version_string
4317 #define _bfd_xcoff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name
4318 #define _bfd_xcoff_bfd_is_target_special_symbol \
4319 coff_bfd_is_target_special_symbol
4320 #define _bfd_xcoff_get_lineno coff_get_lineno
4321 #define _bfd_xcoff_find_nearest_line coff_find_nearest_line
4322 #define _bfd_xcoff_find_line coff_find_line
4323 #define _bfd_xcoff_find_inliner_info coff_find_inliner_info
4324 #define _bfd_xcoff_bfd_make_debug_symbol coff_bfd_make_debug_symbol
4325 #define _bfd_xcoff_read_minisymbols _bfd_generic_read_minisymbols
4326 #define _bfd_xcoff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
4327
4328 /* For reloc entry points. */
4329 #define _bfd_xcoff_get_reloc_upper_bound coff_get_reloc_upper_bound
4330 #define _bfd_xcoff_canonicalize_reloc coff_canonicalize_reloc
4331 #define _bfd_xcoff_set_reloc _bfd_generic_set_reloc
4332 #define _bfd_xcoff_bfd_reloc_type_lookup _bfd_xcoff_reloc_type_lookup
4333 #define _bfd_xcoff_bfd_reloc_name_lookup _bfd_xcoff_reloc_name_lookup
4334
4335 /* For link entry points. */
4336 #define _bfd_xcoff_bfd_get_relocated_section_contents \
4337 bfd_generic_get_relocated_section_contents
4338 #define _bfd_xcoff_bfd_relax_section bfd_generic_relax_section
4339 #define _bfd_xcoff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
4340 #define _bfd_xcoff_bfd_link_just_syms _bfd_generic_link_just_syms
4341 #define _bfd_xcoff_bfd_copy_link_hash_symbol_type \
4342 _bfd_generic_copy_link_hash_symbol_type
4343 #define _bfd_xcoff_bfd_link_split_section _bfd_generic_link_split_section
4344 #define _bfd_xcoff_bfd_gc_sections bfd_generic_gc_sections
4345 #define _bfd_xcoff_bfd_lookup_section_flags bfd_generic_lookup_section_flags
4346 #define _bfd_xcoff_bfd_merge_sections bfd_generic_merge_sections
4347 #define _bfd_xcoff_bfd_is_group_section bfd_generic_is_group_section
4348 #define _bfd_xcoff_bfd_group_name bfd_generic_group_name
4349 #define _bfd_xcoff_bfd_discard_group bfd_generic_discard_group
4350 #define _bfd_xcoff_section_already_linked _bfd_generic_section_already_linked
4351 #define _bfd_xcoff_bfd_define_common_symbol _bfd_xcoff_define_common_symbol
4352 #define _bfd_xcoff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
4353 #define _bfd_xcoff_bfd_define_start_stop bfd_generic_define_start_stop
4354 #define _bfd_xcoff_bfd_link_check_relocs _bfd_generic_link_check_relocs
4355
4356 /* For dynamic symbols and relocs entry points. */
4357 #define _bfd_xcoff_get_synthetic_symtab _bfd_nodynamic_get_synthetic_symtab
4358
4359 static const struct xcoff_backend_data_rec bfd_xcoff_backend_data =
4360 {
4361 { /* COFF backend, defined in libcoff.h. */
4362 _bfd_xcoff_swap_aux_in,
4363 _bfd_xcoff_swap_sym_in,
4364 coff_swap_lineno_in,
4365 _bfd_xcoff_swap_aux_out,
4366 _bfd_xcoff_swap_sym_out,
4367 coff_swap_lineno_out,
4368 xcoff_swap_reloc_out,
4369 coff_swap_filehdr_out,
4370 coff_swap_aouthdr_out,
4371 coff_swap_scnhdr_out,
4372 FILHSZ,
4373 AOUTSZ,
4374 SCNHSZ,
4375 SYMESZ,
4376 AUXESZ,
4377 RELSZ,
4378 LINESZ,
4379 FILNMLEN,
4380 true, /* _bfd_coff_long_filenames */
4381 XCOFF_NO_LONG_SECTION_NAMES, /* _bfd_coff_long_section_names */
4382 3, /* _bfd_coff_default_section_alignment_power */
4383 false, /* _bfd_coff_force_symnames_in_strings */
4384 2, /* _bfd_coff_debug_string_prefix_length */
4385 32768, /* _bfd_coff_max_nscns */
4386 coff_swap_filehdr_in,
4387 coff_swap_aouthdr_in,
4388 coff_swap_scnhdr_in,
4389 xcoff_swap_reloc_in,
4390 coff_bad_format_hook,
4391 coff_set_arch_mach_hook,
4392 coff_mkobject_hook,
4393 styp_to_sec_flags,
4394 coff_set_alignment_hook,
4395 coff_slurp_symbol_table,
4396 symname_in_debug_hook,
4397 coff_pointerize_aux_hook,
4398 coff_print_aux,
4399 dummy_reloc16_extra_cases,
4400 dummy_reloc16_estimate,
4401 NULL, /* bfd_coff_sym_is_global */
4402 coff_compute_section_file_positions,
4403 NULL, /* _bfd_coff_start_final_link */
4404 xcoff_ppc_relocate_section,
4405 coff_rtype_to_howto,
4406 NULL, /* _bfd_coff_adjust_symndx */
4407 _bfd_generic_link_add_one_symbol,
4408 coff_link_output_has_begun,
4409 coff_final_link_postscript,
4410 NULL /* print_pdata. */
4411 },
4412
4413 0x01DF, /* magic number */
4414 bfd_arch_rs6000,
4415 bfd_mach_rs6k,
4416
4417 /* Function pointers to xcoff specific swap routines. */
4418 xcoff_swap_ldhdr_in,
4419 xcoff_swap_ldhdr_out,
4420 xcoff_swap_ldsym_in,
4421 xcoff_swap_ldsym_out,
4422 xcoff_swap_ldrel_in,
4423 xcoff_swap_ldrel_out,
4424
4425 /* Sizes. */
4426 LDHDRSZ,
4427 LDSYMSZ,
4428 LDRELSZ,
4429 12, /* _xcoff_function_descriptor_size */
4430 SMALL_AOUTSZ,
4431
4432 /* Versions. */
4433 1, /* _xcoff_ldhdr_version */
4434
4435 _bfd_xcoff_put_symbol_name,
4436 _bfd_xcoff_put_ldsymbol_name,
4437 &xcoff_dynamic_reloc,
4438 xcoff_create_csect_from_smclas,
4439
4440 /* Lineno and reloc count overflow. */
4441 xcoff_is_lineno_count_overflow,
4442 xcoff_is_reloc_count_overflow,
4443
4444 xcoff_loader_symbol_offset,
4445 xcoff_loader_reloc_offset,
4446
4447 /* glink. */
4448 &xcoff_glink_code[0],
4449 36, /* _xcoff_glink_size */
4450
4451 /* rtinit */
4452 64, /* _xcoff_rtinit_size */
4453 xcoff_generate_rtinit,
4454 };
4455
4456 /* The transfer vector that leads the outside world to all of the above. */
4457 const bfd_target rs6000_xcoff_vec =
4458 {
4459 "aixcoff-rs6000",
4460 bfd_target_xcoff_flavour,
4461 BFD_ENDIAN_BIG, /* data byte order is big */
4462 BFD_ENDIAN_BIG, /* header byte order is big */
4463
4464 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
4465 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
4466
4467 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
4468 0, /* leading char */
4469 '/', /* ar_pad_char */
4470 15, /* ar_max_namelen */
4471 0, /* match priority. */
4472 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
4473
4474 /* data */
4475 bfd_getb64,
4476 bfd_getb_signed_64,
4477 bfd_putb64,
4478 bfd_getb32,
4479 bfd_getb_signed_32,
4480 bfd_putb32,
4481 bfd_getb16,
4482 bfd_getb_signed_16,
4483 bfd_putb16,
4484
4485 /* hdrs */
4486 bfd_getb64,
4487 bfd_getb_signed_64,
4488 bfd_putb64,
4489 bfd_getb32,
4490 bfd_getb_signed_32,
4491 bfd_putb32,
4492 bfd_getb16,
4493 bfd_getb_signed_16,
4494 bfd_putb16,
4495
4496 { /* bfd_check_format */
4497 _bfd_dummy_target,
4498 coff_object_p,
4499 _bfd_xcoff_archive_p,
4500 CORE_FILE_P
4501 },
4502
4503 { /* bfd_set_format */
4504 _bfd_bool_bfd_false_error,
4505 coff_mkobject,
4506 _bfd_generic_mkarchive,
4507 _bfd_bool_bfd_false_error
4508 },
4509
4510 {/* bfd_write_contents */
4511 _bfd_bool_bfd_false_error,
4512 coff_write_object_contents,
4513 _bfd_xcoff_write_archive_contents,
4514 _bfd_bool_bfd_false_error
4515 },
4516
4517 BFD_JUMP_TABLE_GENERIC (_bfd_xcoff),
4518 BFD_JUMP_TABLE_COPY (_bfd_xcoff),
4519 BFD_JUMP_TABLE_CORE (coff),
4520 BFD_JUMP_TABLE_ARCHIVE (_bfd_xcoff),
4521 BFD_JUMP_TABLE_SYMBOLS (_bfd_xcoff),
4522 BFD_JUMP_TABLE_RELOCS (_bfd_xcoff),
4523 BFD_JUMP_TABLE_WRITE (coff),
4524 BFD_JUMP_TABLE_LINK (_bfd_xcoff),
4525 BFD_JUMP_TABLE_DYNAMIC (_bfd_xcoff),
4526
4527 /* Opposite endian version, none exists */
4528 NULL,
4529
4530 & bfd_xcoff_backend_data,
4531 };
4532
4533 /* xcoff-powermac target
4534 Old target.
4535 Only difference between this target and the rs6000 target is the
4536 the default architecture and machine type used in coffcode.h
4537
4538 PowerPC Macs use the same magic numbers as RS/6000
4539 (because that's how they were bootstrapped originally),
4540 but they are always PowerPC architecture. */
4541 static const struct xcoff_backend_data_rec bfd_pmac_xcoff_backend_data =
4542 {
4543 { /* COFF backend, defined in libcoff.h. */
4544 _bfd_xcoff_swap_aux_in,
4545 _bfd_xcoff_swap_sym_in,
4546 coff_swap_lineno_in,
4547 _bfd_xcoff_swap_aux_out,
4548 _bfd_xcoff_swap_sym_out,
4549 coff_swap_lineno_out,
4550 xcoff_swap_reloc_out,
4551 coff_swap_filehdr_out,
4552 coff_swap_aouthdr_out,
4553 coff_swap_scnhdr_out,
4554 FILHSZ,
4555 AOUTSZ,
4556 SCNHSZ,
4557 SYMESZ,
4558 AUXESZ,
4559 RELSZ,
4560 LINESZ,
4561 FILNMLEN,
4562 true, /* _bfd_coff_long_filenames */
4563 XCOFF_NO_LONG_SECTION_NAMES, /* _bfd_coff_long_section_names */
4564 3, /* _bfd_coff_default_section_alignment_power */
4565 false, /* _bfd_coff_force_symnames_in_strings */
4566 2, /* _bfd_coff_debug_string_prefix_length */
4567 32768, /* _bfd_coff_max_nscns */
4568 coff_swap_filehdr_in,
4569 coff_swap_aouthdr_in,
4570 coff_swap_scnhdr_in,
4571 xcoff_swap_reloc_in,
4572 coff_bad_format_hook,
4573 coff_set_arch_mach_hook,
4574 coff_mkobject_hook,
4575 styp_to_sec_flags,
4576 coff_set_alignment_hook,
4577 coff_slurp_symbol_table,
4578 symname_in_debug_hook,
4579 coff_pointerize_aux_hook,
4580 coff_print_aux,
4581 dummy_reloc16_extra_cases,
4582 dummy_reloc16_estimate,
4583 NULL, /* bfd_coff_sym_is_global */
4584 coff_compute_section_file_positions,
4585 NULL, /* _bfd_coff_start_final_link */
4586 xcoff_ppc_relocate_section,
4587 coff_rtype_to_howto,
4588 NULL, /* _bfd_coff_adjust_symndx */
4589 _bfd_generic_link_add_one_symbol,
4590 coff_link_output_has_begun,
4591 coff_final_link_postscript,
4592 NULL /* print_pdata. */
4593 },
4594
4595 0x01DF, /* magic number */
4596 bfd_arch_powerpc,
4597 bfd_mach_ppc,
4598
4599 /* Function pointers to xcoff specific swap routines. */
4600 xcoff_swap_ldhdr_in,
4601 xcoff_swap_ldhdr_out,
4602 xcoff_swap_ldsym_in,
4603 xcoff_swap_ldsym_out,
4604 xcoff_swap_ldrel_in,
4605 xcoff_swap_ldrel_out,
4606
4607 /* Sizes. */
4608 LDHDRSZ,
4609 LDSYMSZ,
4610 LDRELSZ,
4611 12, /* _xcoff_function_descriptor_size */
4612 SMALL_AOUTSZ,
4613
4614 /* Versions. */
4615 1, /* _xcoff_ldhdr_version */
4616
4617 _bfd_xcoff_put_symbol_name,
4618 _bfd_xcoff_put_ldsymbol_name,
4619 &xcoff_dynamic_reloc,
4620 xcoff_create_csect_from_smclas,
4621
4622 /* Lineno and reloc count overflow. */
4623 xcoff_is_lineno_count_overflow,
4624 xcoff_is_reloc_count_overflow,
4625
4626 xcoff_loader_symbol_offset,
4627 xcoff_loader_reloc_offset,
4628
4629 /* glink. */
4630 &xcoff_glink_code[0],
4631 36, /* _xcoff_glink_size */
4632
4633 /* rtinit */
4634 0, /* _xcoff_rtinit_size */
4635 xcoff_generate_rtinit,
4636 };
4637
4638 /* The transfer vector that leads the outside world to all of the above. */
4639 const bfd_target powerpc_xcoff_vec =
4640 {
4641 "xcoff-powermac",
4642 bfd_target_xcoff_flavour,
4643 BFD_ENDIAN_BIG, /* data byte order is big */
4644 BFD_ENDIAN_BIG, /* header byte order is big */
4645
4646 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
4647 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
4648
4649 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
4650 0, /* leading char */
4651 '/', /* ar_pad_char */
4652 15, /* ar_max_namelen */
4653 0, /* match priority. */
4654 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
4655
4656 /* data */
4657 bfd_getb64,
4658 bfd_getb_signed_64,
4659 bfd_putb64,
4660 bfd_getb32,
4661 bfd_getb_signed_32,
4662 bfd_putb32,
4663 bfd_getb16,
4664 bfd_getb_signed_16,
4665 bfd_putb16,
4666
4667 /* hdrs */
4668 bfd_getb64,
4669 bfd_getb_signed_64,
4670 bfd_putb64,
4671 bfd_getb32,
4672 bfd_getb_signed_32,
4673 bfd_putb32,
4674 bfd_getb16,
4675 bfd_getb_signed_16,
4676 bfd_putb16,
4677
4678 { /* bfd_check_format */
4679 _bfd_dummy_target,
4680 coff_object_p,
4681 _bfd_xcoff_archive_p,
4682 CORE_FILE_P
4683 },
4684
4685 { /* bfd_set_format */
4686 _bfd_bool_bfd_false_error,
4687 coff_mkobject,
4688 _bfd_generic_mkarchive,
4689 _bfd_bool_bfd_false_error
4690 },
4691
4692 {/* bfd_write_contents */
4693 _bfd_bool_bfd_false_error,
4694 coff_write_object_contents,
4695 _bfd_xcoff_write_archive_contents,
4696 _bfd_bool_bfd_false_error
4697 },
4698
4699 BFD_JUMP_TABLE_GENERIC (_bfd_xcoff),
4700 BFD_JUMP_TABLE_COPY (_bfd_xcoff),
4701 BFD_JUMP_TABLE_CORE (coff),
4702 BFD_JUMP_TABLE_ARCHIVE (_bfd_xcoff),
4703 BFD_JUMP_TABLE_SYMBOLS (_bfd_xcoff),
4704 BFD_JUMP_TABLE_RELOCS (_bfd_xcoff),
4705 BFD_JUMP_TABLE_WRITE (coff),
4706 BFD_JUMP_TABLE_LINK (_bfd_xcoff),
4707 BFD_JUMP_TABLE_DYNAMIC (_bfd_xcoff),
4708
4709 /* Opposite endian version, none exists */
4710 NULL,
4711
4712 & bfd_pmac_xcoff_backend_data,
4713 };
4714