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9abe04d6f04b9a81615a72e42146643dc4300669
[deliverable/binutils-gdb.git] / bfd / coff-rs6000.c
1 /* BFD back-end for IBM RS/6000 "XCOFF" files.
2 Copyright 1990-1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
3 2008, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
5 Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore.
6 Archive support from Damon A. Permezel.
7 Contributed by IBM Corporation and Cygnus Support.
8
9 This file is part of BFD, the Binary File Descriptor library.
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
24 MA 02110-1301, USA. */
25
26 #include "sysdep.h"
27 #include "libiberty.h"
28 #include "bfd.h"
29 #include "bfdlink.h"
30 #include "libbfd.h"
31 #include "coff/internal.h"
32 #include "coff/xcoff.h"
33 #include "coff/rs6000.h"
34 #include "libcoff.h"
35 #include "libxcoff.h"
36
37 extern bfd_boolean _bfd_xcoff_mkobject (bfd *);
38 extern bfd_boolean _bfd_xcoff_copy_private_bfd_data (bfd *, bfd *);
39 extern bfd_boolean _bfd_xcoff_is_local_label_name (bfd *, const char *);
40 extern reloc_howto_type *_bfd_xcoff_reloc_type_lookup
41 (bfd *, bfd_reloc_code_real_type);
42 extern bfd_boolean _bfd_xcoff_slurp_armap (bfd *);
43 extern const bfd_target *_bfd_xcoff_archive_p (bfd *);
44 extern void * _bfd_xcoff_read_ar_hdr (bfd *);
45 extern bfd *_bfd_xcoff_openr_next_archived_file (bfd *, bfd *);
46 extern int _bfd_xcoff_stat_arch_elt (bfd *, struct stat *);
47 extern bfd_boolean _bfd_xcoff_write_armap
48 (bfd *, unsigned int, struct orl *, unsigned int, int);
49 extern bfd_boolean _bfd_xcoff_write_archive_contents (bfd *);
50 extern int _bfd_xcoff_sizeof_headers (bfd *, struct bfd_link_info *);
51 extern void _bfd_xcoff_swap_sym_in (bfd *, void *, void *);
52 extern unsigned int _bfd_xcoff_swap_sym_out (bfd *, void *, void *);
53 extern void _bfd_xcoff_swap_aux_in (bfd *, void *, int, int, int, int, void *);
54 extern unsigned int _bfd_xcoff_swap_aux_out
55 (bfd *, void *, int, int, int, int, void *);
56 static void xcoff_swap_reloc_in (bfd *, void *, void *);
57 static unsigned int xcoff_swap_reloc_out (bfd *, void *, void *);
58
59 /* Forward declare xcoff_rtype2howto for coffcode.h macro. */
60 void xcoff_rtype2howto (arelent *, struct internal_reloc *);
61
62 /* coffcode.h needs these to be defined. */
63 #define RS6000COFF_C 1
64
65 #define SELECT_RELOC(internal, howto) \
66 { \
67 internal.r_type = howto->type; \
68 internal.r_size = \
69 ((howto->complain_on_overflow == complain_overflow_signed \
70 ? 0x80 \
71 : 0) \
72 | (howto->bitsize - 1)); \
73 }
74
75 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
76 #define COFF_LONG_FILENAMES
77 #define NO_COFF_SYMBOLS
78 #define RTYPE2HOWTO(cache_ptr, dst) xcoff_rtype2howto (cache_ptr, dst)
79 #define coff_mkobject _bfd_xcoff_mkobject
80 #define coff_bfd_copy_private_bfd_data _bfd_xcoff_copy_private_bfd_data
81 #define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name
82 #define coff_bfd_reloc_type_lookup _bfd_xcoff_reloc_type_lookup
83 #define coff_bfd_reloc_name_lookup _bfd_xcoff_reloc_name_lookup
84 #ifdef AIX_CORE
85 extern const bfd_target * rs6000coff_core_p (bfd *abfd);
86 extern bfd_boolean rs6000coff_core_file_matches_executable_p
87 (bfd *cbfd, bfd *ebfd);
88 extern char *rs6000coff_core_file_failing_command (bfd *abfd);
89 extern int rs6000coff_core_file_failing_signal (bfd *abfd);
90 #define CORE_FILE_P rs6000coff_core_p
91 #define coff_core_file_failing_command \
92 rs6000coff_core_file_failing_command
93 #define coff_core_file_failing_signal \
94 rs6000coff_core_file_failing_signal
95 #define coff_core_file_matches_executable_p \
96 rs6000coff_core_file_matches_executable_p
97 #define coff_core_file_pid \
98 _bfd_nocore_core_file_pid
99 #else
100 #define CORE_FILE_P _bfd_dummy_target
101 #define coff_core_file_failing_command \
102 _bfd_nocore_core_file_failing_command
103 #define coff_core_file_failing_signal \
104 _bfd_nocore_core_file_failing_signal
105 #define coff_core_file_matches_executable_p \
106 _bfd_nocore_core_file_matches_executable_p
107 #define coff_core_file_pid \
108 _bfd_nocore_core_file_pid
109 #endif
110 #define coff_SWAP_sym_in _bfd_xcoff_swap_sym_in
111 #define coff_SWAP_sym_out _bfd_xcoff_swap_sym_out
112 #define coff_SWAP_aux_in _bfd_xcoff_swap_aux_in
113 #define coff_SWAP_aux_out _bfd_xcoff_swap_aux_out
114 #define coff_swap_reloc_in xcoff_swap_reloc_in
115 #define coff_swap_reloc_out xcoff_swap_reloc_out
116 #define NO_COFF_RELOCS
117
118 #ifndef bfd_pe_print_pdata
119 #define bfd_pe_print_pdata NULL
120 #endif
121
122 #include "coffcode.h"
123
124 /* The main body of code is in coffcode.h. */
125
126 static const char *normalize_filename (bfd *);
127 static bfd_boolean xcoff_write_armap_old
128 (bfd *, unsigned int, struct orl *, unsigned int, int);
129 static bfd_boolean xcoff_write_armap_big
130 (bfd *, unsigned int, struct orl *, unsigned int, int);
131 static bfd_boolean xcoff_write_archive_contents_old (bfd *);
132 static bfd_boolean xcoff_write_archive_contents_big (bfd *);
133 static void xcoff_swap_ldhdr_in (bfd *, const void *, struct internal_ldhdr *);
134 static void xcoff_swap_ldhdr_out (bfd *, const struct internal_ldhdr *, void *);
135 static void xcoff_swap_ldsym_in (bfd *, const void *, struct internal_ldsym *);
136 static void xcoff_swap_ldsym_out (bfd *, const struct internal_ldsym *, void *);
137 static void xcoff_swap_ldrel_in (bfd *, const void *, struct internal_ldrel *);
138 static void xcoff_swap_ldrel_out (bfd *, const struct internal_ldrel *, void *);
139 static bfd_boolean xcoff_ppc_relocate_section
140 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
141 struct internal_reloc *, struct internal_syment *, asection **);
142 static bfd_boolean _bfd_xcoff_put_ldsymbol_name
143 (bfd *, struct xcoff_loader_info *, struct internal_ldsym *, const char *);
144 static asection *xcoff_create_csect_from_smclas
145 (bfd *, union internal_auxent *, const char *);
146 static bfd_boolean xcoff_is_lineno_count_overflow (bfd *, bfd_vma);
147 static bfd_boolean xcoff_is_reloc_count_overflow (bfd *, bfd_vma);
148 static bfd_vma xcoff_loader_symbol_offset (bfd *, struct internal_ldhdr *);
149 static bfd_vma xcoff_loader_reloc_offset (bfd *, struct internal_ldhdr *);
150 static bfd_boolean xcoff_generate_rtinit
151 (bfd *, const char *, const char *, bfd_boolean);
152 static bfd_boolean do_pad (bfd *, unsigned int);
153 static bfd_boolean do_copy (bfd *, bfd *);
154
155 /* Relocation functions */
156 static bfd_boolean xcoff_reloc_type_br (XCOFF_RELOC_FUNCTION_ARGS);
157
158 static bfd_boolean xcoff_complain_overflow_dont_func
159 (XCOFF_COMPLAIN_FUNCTION_ARGS);
160 static bfd_boolean xcoff_complain_overflow_bitfield_func
161 (XCOFF_COMPLAIN_FUNCTION_ARGS);
162 static bfd_boolean xcoff_complain_overflow_signed_func
163 (XCOFF_COMPLAIN_FUNCTION_ARGS);
164 static bfd_boolean xcoff_complain_overflow_unsigned_func
165 (XCOFF_COMPLAIN_FUNCTION_ARGS);
166
167 bfd_boolean (*xcoff_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION])
168 (XCOFF_RELOC_FUNCTION_ARGS) =
169 {
170 xcoff_reloc_type_pos, /* R_POS (0x00) */
171 xcoff_reloc_type_neg, /* R_NEG (0x01) */
172 xcoff_reloc_type_rel, /* R_REL (0x02) */
173 xcoff_reloc_type_toc, /* R_TOC (0x03) */
174 xcoff_reloc_type_fail, /* R_RTB (0x04) */
175 xcoff_reloc_type_toc, /* R_GL (0x05) */
176 xcoff_reloc_type_toc, /* R_TCL (0x06) */
177 xcoff_reloc_type_fail, /* (0x07) */
178 xcoff_reloc_type_ba, /* R_BA (0x08) */
179 xcoff_reloc_type_fail, /* (0x09) */
180 xcoff_reloc_type_br, /* R_BR (0x0a) */
181 xcoff_reloc_type_fail, /* (0x0b) */
182 xcoff_reloc_type_pos, /* R_RL (0x0c) */
183 xcoff_reloc_type_pos, /* R_RLA (0x0d) */
184 xcoff_reloc_type_fail, /* (0x0e) */
185 xcoff_reloc_type_noop, /* R_REF (0x0f) */
186 xcoff_reloc_type_fail, /* (0x10) */
187 xcoff_reloc_type_fail, /* (0x11) */
188 xcoff_reloc_type_toc, /* R_TRL (0x12) */
189 xcoff_reloc_type_toc, /* R_TRLA (0x13) */
190 xcoff_reloc_type_fail, /* R_RRTBI (0x14) */
191 xcoff_reloc_type_fail, /* R_RRTBA (0x15) */
192 xcoff_reloc_type_ba, /* R_CAI (0x16) */
193 xcoff_reloc_type_crel, /* R_CREL (0x17) */
194 xcoff_reloc_type_ba, /* R_RBA (0x18) */
195 xcoff_reloc_type_ba, /* R_RBAC (0x19) */
196 xcoff_reloc_type_br, /* R_RBR (0x1a) */
197 xcoff_reloc_type_ba, /* R_RBRC (0x1b) */
198 };
199
200 bfd_boolean (*xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW])
201 (XCOFF_COMPLAIN_FUNCTION_ARGS) =
202 {
203 xcoff_complain_overflow_dont_func,
204 xcoff_complain_overflow_bitfield_func,
205 xcoff_complain_overflow_signed_func,
206 xcoff_complain_overflow_unsigned_func,
207 };
208
209 /* Information about one member of an archive. */
210 struct member_layout {
211 /* The archive member that this structure describes. */
212 bfd *member;
213
214 /* The number of bytes of padding that must be inserted before the
215 start of the member in order to ensure that the section contents
216 are correctly aligned. */
217 unsigned int leading_padding;
218
219 /* The offset of MEMBER from the start of the archive (i.e. the end
220 of the leading padding). */
221 file_ptr offset;
222
223 /* The normalized name of MEMBER. */
224 const char *name;
225
226 /* The length of NAME, without padding. */
227 bfd_size_type namlen;
228
229 /* The length of NAME, with padding. */
230 bfd_size_type padded_namlen;
231
232 /* The size of MEMBER's header, including the name and magic sequence. */
233 bfd_size_type header_size;
234
235 /* The size of the MEMBER's contents. */
236 bfd_size_type contents_size;
237
238 /* The number of bytes of padding that must be inserted after MEMBER
239 in order to preserve even alignment. */
240 bfd_size_type trailing_padding;
241 };
242
243 /* A structure used for iterating over the members of an archive. */
244 struct archive_iterator {
245 /* The archive itself. */
246 bfd *archive;
247
248 /* Information about the current archive member. */
249 struct member_layout current;
250
251 /* Information about the next archive member. MEMBER is null if there
252 are no more archive members, in which case OFFSET is the offset of
253 the first unused byte. */
254 struct member_layout next;
255 };
256
257 /* Initialize INFO so that it describes member MEMBER of archive ARCHIVE.
258 OFFSET is the even-padded offset of MEMBER, not including any leading
259 padding needed for section alignment. */
260
261 static void
262 member_layout_init (struct member_layout *info, bfd *archive,
263 bfd *member, file_ptr offset)
264 {
265 info->member = member;
266 info->leading_padding = 0;
267 if (member)
268 {
269 info->name = normalize_filename (member);
270 info->namlen = strlen (info->name);
271 info->padded_namlen = info->namlen + (info->namlen & 1);
272 if (xcoff_big_format_p (archive))
273 info->header_size = SIZEOF_AR_HDR_BIG;
274 else
275 info->header_size = SIZEOF_AR_HDR;
276 info->header_size += info->padded_namlen + SXCOFFARFMAG;
277 info->contents_size = arelt_size (member);
278 info->trailing_padding = info->contents_size & 1;
279
280 if (bfd_check_format (member, bfd_object)
281 && bfd_get_flavour (member) == bfd_target_xcoff_flavour
282 && (member->flags & DYNAMIC) != 0)
283 info->leading_padding
284 = (-(offset + info->header_size)
285 & ((1 << bfd_xcoff_text_align_power (member)) - 1));
286 }
287 info->offset = offset + info->leading_padding;
288 }
289
290 /* Set up ITERATOR to iterate through archive ARCHIVE. */
291
292 static void
293 archive_iterator_begin (struct archive_iterator *iterator,
294 bfd *archive)
295 {
296 iterator->archive = archive;
297 member_layout_init (&iterator->next, archive, archive->archive_head,
298 xcoff_big_format_p (archive)
299 ? SIZEOF_AR_FILE_HDR_BIG
300 : SIZEOF_AR_FILE_HDR);
301 }
302
303 /* Make ITERATOR visit the first unvisited archive member. Return true
304 on success; return false if all members have been visited. */
305
306 static bfd_boolean
307 archive_iterator_next (struct archive_iterator *iterator)
308 {
309 if (!iterator->next.member)
310 return FALSE;
311
312 iterator->current = iterator->next;
313 member_layout_init (&iterator->next, iterator->archive,
314 iterator->current.member->archive_next,
315 iterator->current.offset
316 + iterator->current.header_size
317 + iterator->current.contents_size
318 + iterator->current.trailing_padding);
319 return TRUE;
320 }
321
322 /* We use our own tdata type. Its first field is the COFF tdata type,
323 so the COFF routines are compatible. */
324
325 bfd_boolean
326 _bfd_xcoff_mkobject (bfd *abfd)
327 {
328 coff_data_type *coff;
329 bfd_size_type amt = sizeof (struct xcoff_tdata);
330
331 abfd->tdata.xcoff_obj_data = (struct xcoff_tdata *) bfd_zalloc (abfd, amt);
332 if (abfd->tdata.xcoff_obj_data == NULL)
333 return FALSE;
334 coff = coff_data (abfd);
335 coff->symbols = (coff_symbol_type *) NULL;
336 coff->conversion_table = (unsigned int *) NULL;
337 coff->raw_syments = (struct coff_ptr_struct *) NULL;
338 coff->relocbase = 0;
339
340 xcoff_data (abfd)->modtype = ('1' << 8) | 'L';
341
342 /* We set cputype to -1 to indicate that it has not been
343 initialized. */
344 xcoff_data (abfd)->cputype = -1;
345
346 xcoff_data (abfd)->csects = NULL;
347 xcoff_data (abfd)->debug_indices = NULL;
348
349 /* text section alignment is different than the default */
350 bfd_xcoff_text_align_power (abfd) = 2;
351
352 return TRUE;
353 }
354
355 /* Copy XCOFF data from one BFD to another. */
356
357 bfd_boolean
358 _bfd_xcoff_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
359 {
360 struct xcoff_tdata *ix, *ox;
361 asection *sec;
362
363 if (ibfd->xvec != obfd->xvec)
364 return TRUE;
365 ix = xcoff_data (ibfd);
366 ox = xcoff_data (obfd);
367 ox->full_aouthdr = ix->full_aouthdr;
368 ox->toc = ix->toc;
369 if (ix->sntoc == 0)
370 ox->sntoc = 0;
371 else
372 {
373 sec = coff_section_from_bfd_index (ibfd, ix->sntoc);
374 if (sec == NULL)
375 ox->sntoc = 0;
376 else
377 ox->sntoc = sec->output_section->target_index;
378 }
379 if (ix->snentry == 0)
380 ox->snentry = 0;
381 else
382 {
383 sec = coff_section_from_bfd_index (ibfd, ix->snentry);
384 if (sec == NULL)
385 ox->snentry = 0;
386 else
387 ox->snentry = sec->output_section->target_index;
388 }
389 bfd_xcoff_text_align_power (obfd) = bfd_xcoff_text_align_power (ibfd);
390 bfd_xcoff_data_align_power (obfd) = bfd_xcoff_data_align_power (ibfd);
391 ox->modtype = ix->modtype;
392 ox->cputype = ix->cputype;
393 ox->maxdata = ix->maxdata;
394 ox->maxstack = ix->maxstack;
395 return TRUE;
396 }
397
398 /* I don't think XCOFF really has a notion of local labels based on
399 name. This will mean that ld -X doesn't actually strip anything.
400 The AIX native linker does not have a -X option, and it ignores the
401 -x option. */
402
403 bfd_boolean
404 _bfd_xcoff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
405 const char *name ATTRIBUTE_UNUSED)
406 {
407 return FALSE;
408 }
409
410 static const struct dwarf_debug_section xcoff_debug_sections[] =
411 {
412 { ".dwabrev", NULL },
413 { ".dwarnge", NULL },
414 { NULL, NULL }, /* .debug_frame */
415 { ".dwinfo", NULL },
416 { ".dwline", NULL },
417 { NULL, NULL }, /* .debug_loc */
418 { NULL, NULL }, /* .debug_macinfo */
419 { NULL, NULL }, /* .debug_macro */
420 { ".dwpbnms", NULL },
421 { ".dwpbtyp", NULL },
422 { ".dwrnges", NULL },
423 { NULL, NULL }, /* .debug_static_func */
424 { NULL, NULL }, /* .debug_static_vars */
425 { ".dwstr", NULL },
426 { NULL, NULL }, /* .debug_types */
427 /* GNU DWARF 1 extensions */
428 { NULL, NULL }, /* .debug_sfnames */
429 { NULL, NULL }, /* .debug_srcinfo */
430 /* SGI/MIPS DWARF 2 extensions */
431 { NULL, NULL }, /* .debug_funcnames */
432 { NULL, NULL }, /* .debug_typenames */
433 { NULL, NULL }, /* .debug_varnames */
434 { NULL, NULL }, /* .debug_weaknames */
435 { NULL, NULL },
436 };
437
438 static bfd_boolean
439 xcoff_find_nearest_line (bfd *abfd,
440 asection *section,
441 asymbol **symbols,
442 bfd_vma offset,
443 const char **filename_ptr,
444 const char **functionname_ptr,
445 unsigned int *line_ptr)
446 {
447 return coff_find_nearest_line_with_names (abfd, xcoff_debug_sections,
448 section, symbols, offset,
449 filename_ptr, functionname_ptr,
450 line_ptr);
451 }
452
453 static bfd_boolean
454 xcoff_find_nearest_line_discriminator (bfd *abfd,
455 asection *section,
456 asymbol **symbols,
457 bfd_vma offset,
458 const char **filename_ptr,
459 const char **functionname_ptr,
460 unsigned int *line_ptr,
461 unsigned int *discriminator)
462 {
463 *discriminator = 0;
464 return coff_find_nearest_line_with_names (abfd, xcoff_debug_sections,
465 section, symbols, offset,
466 filename_ptr, functionname_ptr,
467 line_ptr);
468 }
469
470 \f
471 void
472 _bfd_xcoff_swap_sym_in (bfd *abfd, void * ext1, void * in1)
473 {
474 SYMENT *ext = (SYMENT *)ext1;
475 struct internal_syment * in = (struct internal_syment *)in1;
476
477 if (ext->e.e_name[0] != 0)
478 {
479 memcpy (in->_n._n_name, ext->e.e_name, SYMNMLEN);
480 }
481 else
482 {
483 in->_n._n_n._n_zeroes = 0;
484 in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e.e.e_offset);
485 }
486
487 in->n_value = H_GET_32 (abfd, ext->e_value);
488 in->n_scnum = H_GET_16 (abfd, ext->e_scnum);
489 in->n_type = H_GET_16 (abfd, ext->e_type);
490 in->n_sclass = H_GET_8 (abfd, ext->e_sclass);
491 in->n_numaux = H_GET_8 (abfd, ext->e_numaux);
492 }
493
494 unsigned int
495 _bfd_xcoff_swap_sym_out (bfd *abfd, void * inp, void * extp)
496 {
497 struct internal_syment *in = (struct internal_syment *)inp;
498 SYMENT *ext =(SYMENT *)extp;
499
500 if (in->_n._n_name[0] != 0)
501 {
502 memcpy (ext->e.e_name, in->_n._n_name, SYMNMLEN);
503 }
504 else
505 {
506 H_PUT_32 (abfd, 0, ext->e.e.e_zeroes);
507 H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e.e.e_offset);
508 }
509
510 H_PUT_32 (abfd, in->n_value, ext->e_value);
511 H_PUT_16 (abfd, in->n_scnum, ext->e_scnum);
512 H_PUT_16 (abfd, in->n_type, ext->e_type);
513 H_PUT_8 (abfd, in->n_sclass, ext->e_sclass);
514 H_PUT_8 (abfd, in->n_numaux, ext->e_numaux);
515 return bfd_coff_symesz (abfd);
516 }
517
518 void
519 _bfd_xcoff_swap_aux_in (bfd *abfd, void * ext1, int type, int in_class,
520 int indx, int numaux, void * in1)
521 {
522 AUXENT * ext = (AUXENT *)ext1;
523 union internal_auxent *in = (union internal_auxent *)in1;
524
525 switch (in_class)
526 {
527 case C_FILE:
528 if (ext->x_file.x_n.x_fname[0] == 0)
529 {
530 in->x_file.x_n.x_zeroes = 0;
531 in->x_file.x_n.x_offset =
532 H_GET_32 (abfd, ext->x_file.x_n.x_n.x_offset);
533 }
534 else
535 {
536 if (numaux > 1)
537 {
538 if (indx == 0)
539 memcpy (in->x_file.x_fname, ext->x_file.x_n.x_fname,
540 numaux * sizeof (AUXENT));
541 }
542 else
543 {
544 memcpy (in->x_file.x_fname, ext->x_file.x_n.x_fname, FILNMLEN);
545 }
546 }
547 goto end;
548
549 /* RS/6000 "csect" auxents */
550 case C_EXT:
551 case C_AIX_WEAKEXT:
552 case C_HIDEXT:
553 if (indx + 1 == numaux)
554 {
555 in->x_csect.x_scnlen.l = H_GET_32 (abfd, ext->x_csect.x_scnlen);
556 in->x_csect.x_parmhash = H_GET_32 (abfd, ext->x_csect.x_parmhash);
557 in->x_csect.x_snhash = H_GET_16 (abfd, ext->x_csect.x_snhash);
558 /* We don't have to hack bitfields in x_smtyp because it's
559 defined by shifts-and-ands, which are equivalent on all
560 byte orders. */
561 in->x_csect.x_smtyp = H_GET_8 (abfd, ext->x_csect.x_smtyp);
562 in->x_csect.x_smclas = H_GET_8 (abfd, ext->x_csect.x_smclas);
563 in->x_csect.x_stab = H_GET_32 (abfd, ext->x_csect.x_stab);
564 in->x_csect.x_snstab = H_GET_16 (abfd, ext->x_csect.x_snstab);
565 goto end;
566 }
567 break;
568
569 case C_STAT:
570 case C_LEAFSTAT:
571 case C_HIDDEN:
572 if (type == T_NULL)
573 {
574 in->x_scn.x_scnlen = H_GET_32 (abfd, ext->x_scn.x_scnlen);
575 in->x_scn.x_nreloc = H_GET_16 (abfd, ext->x_scn.x_nreloc);
576 in->x_scn.x_nlinno = H_GET_16 (abfd, ext->x_scn.x_nlinno);
577 /* PE defines some extra fields; we zero them out for
578 safety. */
579 in->x_scn.x_checksum = 0;
580 in->x_scn.x_associated = 0;
581 in->x_scn.x_comdat = 0;
582
583 goto end;
584 }
585 break;
586 }
587
588 in->x_sym.x_tagndx.l = H_GET_32 (abfd, ext->x_sym.x_tagndx);
589 in->x_sym.x_tvndx = H_GET_16 (abfd, ext->x_sym.x_tvndx);
590
591 if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
592 || ISTAG (in_class))
593 {
594 in->x_sym.x_fcnary.x_fcn.x_lnnoptr =
595 H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
596 in->x_sym.x_fcnary.x_fcn.x_endndx.l =
597 H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx);
598 }
599 else
600 {
601 in->x_sym.x_fcnary.x_ary.x_dimen[0] =
602 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
603 in->x_sym.x_fcnary.x_ary.x_dimen[1] =
604 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
605 in->x_sym.x_fcnary.x_ary.x_dimen[2] =
606 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
607 in->x_sym.x_fcnary.x_ary.x_dimen[3] =
608 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
609 }
610
611 if (ISFCN (type))
612 {
613 in->x_sym.x_misc.x_fsize = H_GET_32 (abfd, ext->x_sym.x_misc.x_fsize);
614 }
615 else
616 {
617 in->x_sym.x_misc.x_lnsz.x_lnno =
618 H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno);
619 in->x_sym.x_misc.x_lnsz.x_size =
620 H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size);
621 }
622
623 end: ;
624 /* The semicolon is because MSVC doesn't like labels at
625 end of block. */
626 }
627
628 unsigned int
629 _bfd_xcoff_swap_aux_out (bfd *abfd, void * inp, int type, int in_class,
630 int indx ATTRIBUTE_UNUSED,
631 int numaux ATTRIBUTE_UNUSED,
632 void * extp)
633 {
634 union internal_auxent *in = (union internal_auxent *)inp;
635 AUXENT *ext = (AUXENT *)extp;
636
637 memset (ext, 0, bfd_coff_auxesz (abfd));
638 switch (in_class)
639 {
640 case C_FILE:
641 if (in->x_file.x_fname[0] == 0)
642 {
643 H_PUT_32 (abfd, 0, ext->x_file.x_n.x_n.x_zeroes);
644 H_PUT_32 (abfd, in->x_file.x_n.x_offset,
645 ext->x_file.x_n.x_n.x_offset);
646 }
647 else
648 {
649 memcpy (ext->x_file.x_n.x_fname, in->x_file.x_fname, FILNMLEN);
650 }
651 goto end;
652
653 /* RS/6000 "csect" auxents */
654 case C_EXT:
655 case C_AIX_WEAKEXT:
656 case C_HIDEXT:
657 if (indx + 1 == numaux)
658 {
659 H_PUT_32 (abfd, in->x_csect.x_scnlen.l, ext->x_csect.x_scnlen);
660 H_PUT_32 (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
661 H_PUT_16 (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
662 /* We don't have to hack bitfields in x_smtyp because it's
663 defined by shifts-and-ands, which are equivalent on all
664 byte orders. */
665 H_PUT_8 (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
666 H_PUT_8 (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
667 H_PUT_32 (abfd, in->x_csect.x_stab, ext->x_csect.x_stab);
668 H_PUT_16 (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab);
669 goto end;
670 }
671 break;
672
673 case C_STAT:
674 case C_LEAFSTAT:
675 case C_HIDDEN:
676 if (type == T_NULL)
677 {
678 H_PUT_32 (abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen);
679 H_PUT_16 (abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc);
680 H_PUT_16 (abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno);
681 goto end;
682 }
683 break;
684 }
685
686 H_PUT_32 (abfd, in->x_sym.x_tagndx.l, ext->x_sym.x_tagndx);
687 H_PUT_16 (abfd, in->x_sym.x_tvndx, ext->x_sym.x_tvndx);
688
689 if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type)
690 || ISTAG (in_class))
691 {
692 H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr,
693 ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
694 H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l,
695 ext->x_sym.x_fcnary.x_fcn.x_endndx);
696 }
697 else
698 {
699 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0],
700 ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
701 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1],
702 ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
703 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2],
704 ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
705 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3],
706 ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
707 }
708
709 if (ISFCN (type))
710 H_PUT_32 (abfd, in->x_sym.x_misc.x_fsize, ext->x_sym.x_misc.x_fsize);
711 else
712 {
713 H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_lnno,
714 ext->x_sym.x_misc.x_lnsz.x_lnno);
715 H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_size,
716 ext->x_sym.x_misc.x_lnsz.x_size);
717 }
718
719 end:
720 return bfd_coff_auxesz (abfd);
721 }
722
723
724 \f
725 /* The XCOFF reloc table. Actually, XCOFF relocations specify the
726 bitsize and whether they are signed or not, along with a
727 conventional type. This table is for the types, which are used for
728 different algorithms for putting in the reloc. Many of these
729 relocs need special_function entries, which I have not written. */
730
731
732 reloc_howto_type xcoff_howto_table[] =
733 {
734 /* Standard 32 bit relocation. */
735 HOWTO (R_POS, /* type */
736 0, /* rightshift */
737 2, /* size (0 = byte, 1 = short, 2 = long) */
738 32, /* bitsize */
739 FALSE, /* pc_relative */
740 0, /* bitpos */
741 complain_overflow_bitfield, /* complain_on_overflow */
742 0, /* special_function */
743 "R_POS", /* name */
744 TRUE, /* partial_inplace */
745 0xffffffff, /* src_mask */
746 0xffffffff, /* dst_mask */
747 FALSE), /* pcrel_offset */
748
749 /* 32 bit relocation, but store negative value. */
750 HOWTO (R_NEG, /* type */
751 0, /* rightshift */
752 -2, /* size (0 = byte, 1 = short, 2 = long) */
753 32, /* bitsize */
754 FALSE, /* pc_relative */
755 0, /* bitpos */
756 complain_overflow_bitfield, /* complain_on_overflow */
757 0, /* special_function */
758 "R_NEG", /* name */
759 TRUE, /* partial_inplace */
760 0xffffffff, /* src_mask */
761 0xffffffff, /* dst_mask */
762 FALSE), /* pcrel_offset */
763
764 /* 32 bit PC relative relocation. */
765 HOWTO (R_REL, /* type */
766 0, /* rightshift */
767 2, /* size (0 = byte, 1 = short, 2 = long) */
768 32, /* bitsize */
769 TRUE, /* pc_relative */
770 0, /* bitpos */
771 complain_overflow_signed, /* complain_on_overflow */
772 0, /* special_function */
773 "R_REL", /* name */
774 TRUE, /* partial_inplace */
775 0xffffffff, /* src_mask */
776 0xffffffff, /* dst_mask */
777 FALSE), /* pcrel_offset */
778
779 /* 16 bit TOC relative relocation. */
780 HOWTO (R_TOC, /* type */
781 0, /* rightshift */
782 1, /* size (0 = byte, 1 = short, 2 = long) */
783 16, /* bitsize */
784 FALSE, /* pc_relative */
785 0, /* bitpos */
786 complain_overflow_bitfield, /* complain_on_overflow */
787 0, /* special_function */
788 "R_TOC", /* name */
789 TRUE, /* partial_inplace */
790 0xffff, /* src_mask */
791 0xffff, /* dst_mask */
792 FALSE), /* pcrel_offset */
793
794 /* I don't really know what this is. */
795 HOWTO (R_RTB, /* type */
796 1, /* rightshift */
797 2, /* size (0 = byte, 1 = short, 2 = long) */
798 32, /* bitsize */
799 FALSE, /* pc_relative */
800 0, /* bitpos */
801 complain_overflow_bitfield, /* complain_on_overflow */
802 0, /* special_function */
803 "R_RTB", /* name */
804 TRUE, /* partial_inplace */
805 0xffffffff, /* src_mask */
806 0xffffffff, /* dst_mask */
807 FALSE), /* pcrel_offset */
808
809 /* External TOC relative symbol. */
810 HOWTO (R_GL, /* type */
811 0, /* rightshift */
812 1, /* size (0 = byte, 1 = short, 2 = long) */
813 16, /* bitsize */
814 FALSE, /* pc_relative */
815 0, /* bitpos */
816 complain_overflow_bitfield, /* complain_on_overflow */
817 0, /* special_function */
818 "R_GL", /* name */
819 TRUE, /* partial_inplace */
820 0xffff, /* src_mask */
821 0xffff, /* dst_mask */
822 FALSE), /* pcrel_offset */
823
824 /* Local TOC relative symbol. */
825 HOWTO (R_TCL, /* type */
826 0, /* rightshift */
827 1, /* size (0 = byte, 1 = short, 2 = long) */
828 16, /* bitsize */
829 FALSE, /* pc_relative */
830 0, /* bitpos */
831 complain_overflow_bitfield, /* complain_on_overflow */
832 0, /* special_function */
833 "R_TCL", /* name */
834 TRUE, /* partial_inplace */
835 0xffff, /* src_mask */
836 0xffff, /* dst_mask */
837 FALSE), /* pcrel_offset */
838
839 EMPTY_HOWTO (7),
840
841 /* Non modifiable absolute branch. */
842 HOWTO (R_BA, /* type */
843 0, /* rightshift */
844 2, /* size (0 = byte, 1 = short, 2 = long) */
845 26, /* bitsize */
846 FALSE, /* pc_relative */
847 0, /* bitpos */
848 complain_overflow_bitfield, /* complain_on_overflow */
849 0, /* special_function */
850 "R_BA_26", /* name */
851 TRUE, /* partial_inplace */
852 0x03fffffc, /* src_mask */
853 0x03fffffc, /* dst_mask */
854 FALSE), /* pcrel_offset */
855
856 EMPTY_HOWTO (9),
857
858 /* Non modifiable relative branch. */
859 HOWTO (R_BR, /* type */
860 0, /* rightshift */
861 2, /* size (0 = byte, 1 = short, 2 = long) */
862 26, /* bitsize */
863 TRUE, /* pc_relative */
864 0, /* bitpos */
865 complain_overflow_signed, /* complain_on_overflow */
866 0, /* special_function */
867 "R_BR", /* name */
868 TRUE, /* partial_inplace */
869 0x03fffffc, /* src_mask */
870 0x03fffffc, /* dst_mask */
871 FALSE), /* pcrel_offset */
872
873 EMPTY_HOWTO (0xb),
874
875 /* Indirect load. */
876 HOWTO (R_RL, /* type */
877 0, /* rightshift */
878 1, /* size (0 = byte, 1 = short, 2 = long) */
879 16, /* bitsize */
880 FALSE, /* pc_relative */
881 0, /* bitpos */
882 complain_overflow_bitfield, /* complain_on_overflow */
883 0, /* special_function */
884 "R_RL", /* name */
885 TRUE, /* partial_inplace */
886 0xffff, /* src_mask */
887 0xffff, /* dst_mask */
888 FALSE), /* pcrel_offset */
889
890 /* Load address. */
891 HOWTO (R_RLA, /* type */
892 0, /* rightshift */
893 1, /* size (0 = byte, 1 = short, 2 = long) */
894 16, /* bitsize */
895 FALSE, /* pc_relative */
896 0, /* bitpos */
897 complain_overflow_bitfield, /* complain_on_overflow */
898 0, /* special_function */
899 "R_RLA", /* name */
900 TRUE, /* partial_inplace */
901 0xffff, /* src_mask */
902 0xffff, /* dst_mask */
903 FALSE), /* pcrel_offset */
904
905 EMPTY_HOWTO (0xe),
906
907 /* Non-relocating reference. Bitsize is 1 so that r_rsize is 0. */
908 HOWTO (R_REF, /* type */
909 0, /* rightshift */
910 0, /* size (0 = byte, 1 = short, 2 = long) */
911 1, /* bitsize */
912 FALSE, /* pc_relative */
913 0, /* bitpos */
914 complain_overflow_dont, /* complain_on_overflow */
915 0, /* special_function */
916 "R_REF", /* name */
917 FALSE, /* partial_inplace */
918 0, /* src_mask */
919 0, /* dst_mask */
920 FALSE), /* pcrel_offset */
921
922 EMPTY_HOWTO (0x10),
923 EMPTY_HOWTO (0x11),
924
925 /* TOC relative indirect load. */
926 HOWTO (R_TRL, /* type */
927 0, /* rightshift */
928 1, /* size (0 = byte, 1 = short, 2 = long) */
929 16, /* bitsize */
930 FALSE, /* pc_relative */
931 0, /* bitpos */
932 complain_overflow_bitfield, /* complain_on_overflow */
933 0, /* special_function */
934 "R_TRL", /* name */
935 TRUE, /* partial_inplace */
936 0xffff, /* src_mask */
937 0xffff, /* dst_mask */
938 FALSE), /* pcrel_offset */
939
940 /* TOC relative load address. */
941 HOWTO (R_TRLA, /* type */
942 0, /* rightshift */
943 1, /* size (0 = byte, 1 = short, 2 = long) */
944 16, /* bitsize */
945 FALSE, /* pc_relative */
946 0, /* bitpos */
947 complain_overflow_bitfield, /* complain_on_overflow */
948 0, /* special_function */
949 "R_TRLA", /* name */
950 TRUE, /* partial_inplace */
951 0xffff, /* src_mask */
952 0xffff, /* dst_mask */
953 FALSE), /* pcrel_offset */
954
955 /* Modifiable relative branch. */
956 HOWTO (R_RRTBI, /* type */
957 1, /* rightshift */
958 2, /* size (0 = byte, 1 = short, 2 = long) */
959 32, /* bitsize */
960 FALSE, /* pc_relative */
961 0, /* bitpos */
962 complain_overflow_bitfield, /* complain_on_overflow */
963 0, /* special_function */
964 "R_RRTBI", /* name */
965 TRUE, /* partial_inplace */
966 0xffffffff, /* src_mask */
967 0xffffffff, /* dst_mask */
968 FALSE), /* pcrel_offset */
969
970 /* Modifiable absolute branch. */
971 HOWTO (R_RRTBA, /* type */
972 1, /* rightshift */
973 2, /* size (0 = byte, 1 = short, 2 = long) */
974 32, /* bitsize */
975 FALSE, /* pc_relative */
976 0, /* bitpos */
977 complain_overflow_bitfield, /* complain_on_overflow */
978 0, /* special_function */
979 "R_RRTBA", /* name */
980 TRUE, /* partial_inplace */
981 0xffffffff, /* src_mask */
982 0xffffffff, /* dst_mask */
983 FALSE), /* pcrel_offset */
984
985 /* Modifiable call absolute indirect. */
986 HOWTO (R_CAI, /* type */
987 0, /* rightshift */
988 1, /* size (0 = byte, 1 = short, 2 = long) */
989 16, /* bitsize */
990 FALSE, /* pc_relative */
991 0, /* bitpos */
992 complain_overflow_bitfield, /* complain_on_overflow */
993 0, /* special_function */
994 "R_CAI", /* name */
995 TRUE, /* partial_inplace */
996 0xffff, /* src_mask */
997 0xffff, /* dst_mask */
998 FALSE), /* pcrel_offset */
999
1000 /* Modifiable call relative. */
1001 HOWTO (R_CREL, /* type */
1002 0, /* rightshift */
1003 1, /* size (0 = byte, 1 = short, 2 = long) */
1004 16, /* bitsize */
1005 FALSE, /* pc_relative */
1006 0, /* bitpos */
1007 complain_overflow_bitfield, /* complain_on_overflow */
1008 0, /* special_function */
1009 "R_CREL", /* name */
1010 TRUE, /* partial_inplace */
1011 0xffff, /* src_mask */
1012 0xffff, /* dst_mask */
1013 FALSE), /* pcrel_offset */
1014
1015 /* Modifiable branch absolute. */
1016 HOWTO (R_RBA, /* type */
1017 0, /* rightshift */
1018 2, /* size (0 = byte, 1 = short, 2 = long) */
1019 26, /* bitsize */
1020 FALSE, /* pc_relative */
1021 0, /* bitpos */
1022 complain_overflow_bitfield, /* complain_on_overflow */
1023 0, /* special_function */
1024 "R_RBA", /* name */
1025 TRUE, /* partial_inplace */
1026 0x03fffffc, /* src_mask */
1027 0x03fffffc, /* dst_mask */
1028 FALSE), /* pcrel_offset */
1029
1030 /* Modifiable branch absolute. */
1031 HOWTO (R_RBAC, /* type */
1032 0, /* rightshift */
1033 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 32, /* bitsize */
1035 FALSE, /* pc_relative */
1036 0, /* bitpos */
1037 complain_overflow_bitfield, /* complain_on_overflow */
1038 0, /* special_function */
1039 "R_RBAC", /* name */
1040 TRUE, /* partial_inplace */
1041 0xffffffff, /* src_mask */
1042 0xffffffff, /* dst_mask */
1043 FALSE), /* pcrel_offset */
1044
1045 /* Modifiable branch relative. */
1046 HOWTO (R_RBR, /* type */
1047 0, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1049 26, /* bitsize */
1050 FALSE, /* pc_relative */
1051 0, /* bitpos */
1052 complain_overflow_signed, /* complain_on_overflow */
1053 0, /* special_function */
1054 "R_RBR_26", /* name */
1055 TRUE, /* partial_inplace */
1056 0x03fffffc, /* src_mask */
1057 0x03fffffc, /* dst_mask */
1058 FALSE), /* pcrel_offset */
1059
1060 /* Modifiable branch absolute. */
1061 HOWTO (R_RBRC, /* type */
1062 0, /* rightshift */
1063 1, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 0, /* bitpos */
1067 complain_overflow_bitfield, /* complain_on_overflow */
1068 0, /* special_function */
1069 "R_RBRC", /* name */
1070 TRUE, /* partial_inplace */
1071 0xffff, /* src_mask */
1072 0xffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
1074
1075 /* 16 bit Non modifiable absolute branch. */
1076 HOWTO (R_BA, /* type */
1077 0, /* rightshift */
1078 1, /* size (0 = byte, 1 = short, 2 = long) */
1079 16, /* bitsize */
1080 FALSE, /* pc_relative */
1081 0, /* bitpos */
1082 complain_overflow_bitfield, /* complain_on_overflow */
1083 0, /* special_function */
1084 "R_BA_16", /* name */
1085 TRUE, /* partial_inplace */
1086 0xfffc, /* src_mask */
1087 0xfffc, /* dst_mask */
1088 FALSE), /* pcrel_offset */
1089
1090 /* Modifiable branch relative. */
1091 HOWTO (R_RBR, /* type */
1092 0, /* rightshift */
1093 1, /* size (0 = byte, 1 = short, 2 = long) */
1094 16, /* bitsize */
1095 FALSE, /* pc_relative */
1096 0, /* bitpos */
1097 complain_overflow_signed, /* complain_on_overflow */
1098 0, /* special_function */
1099 "R_RBR_16", /* name */
1100 TRUE, /* partial_inplace */
1101 0xffff, /* src_mask */
1102 0xffff, /* dst_mask */
1103 FALSE), /* pcrel_offset */
1104
1105 /* Modifiable branch relative. */
1106 HOWTO (R_RBA, /* type */
1107 0, /* rightshift */
1108 1, /* size (0 = byte, 1 = short, 2 = long) */
1109 16, /* bitsize */
1110 FALSE, /* pc_relative */
1111 0, /* bitpos */
1112 complain_overflow_signed, /* complain_on_overflow */
1113 0, /* special_function */
1114 "R_RBA_16", /* name */
1115 TRUE, /* partial_inplace */
1116 0xffff, /* src_mask */
1117 0xffff, /* dst_mask */
1118 FALSE), /* pcrel_offset */
1119 };
1120
1121 void
1122 xcoff_rtype2howto (arelent *relent, struct internal_reloc *internal)
1123 {
1124 if (internal->r_type > R_RBRC)
1125 abort ();
1126
1127 /* Default howto layout works most of the time */
1128 relent->howto = &xcoff_howto_table[internal->r_type];
1129
1130 /* Special case some 16 bit reloc */
1131 if (15 == (internal->r_size & 0x1f))
1132 {
1133 if (R_BA == internal->r_type)
1134 relent->howto = &xcoff_howto_table[0x1c];
1135 else if (R_RBR == internal->r_type)
1136 relent->howto = &xcoff_howto_table[0x1d];
1137 else if (R_RBA == internal->r_type)
1138 relent->howto = &xcoff_howto_table[0x1e];
1139 }
1140
1141 /* The r_size field of an XCOFF reloc encodes the bitsize of the
1142 relocation, as well as indicating whether it is signed or not.
1143 Doublecheck that the relocation information gathered from the
1144 type matches this information. The bitsize is not significant
1145 for R_REF relocs. */
1146 if (relent->howto->dst_mask != 0
1147 && (relent->howto->bitsize
1148 != ((unsigned int) internal->r_size & 0x1f) + 1))
1149 abort ();
1150 }
1151
1152 reloc_howto_type *
1153 _bfd_xcoff_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1154 bfd_reloc_code_real_type code)
1155 {
1156 switch (code)
1157 {
1158 case BFD_RELOC_PPC_B26:
1159 return &xcoff_howto_table[0xa];
1160 case BFD_RELOC_PPC_BA16:
1161 return &xcoff_howto_table[0x1c];
1162 case BFD_RELOC_PPC_BA26:
1163 return &xcoff_howto_table[8];
1164 case BFD_RELOC_PPC_TOC16:
1165 return &xcoff_howto_table[3];
1166 case BFD_RELOC_16:
1167 /* Note that this relocation is only internally used by gas. */
1168 return &xcoff_howto_table[0xc];
1169 case BFD_RELOC_32:
1170 case BFD_RELOC_CTOR:
1171 return &xcoff_howto_table[0];
1172 case BFD_RELOC_NONE:
1173 return &xcoff_howto_table[0xf];
1174 default:
1175 return NULL;
1176 }
1177 }
1178
1179 static reloc_howto_type *
1180 _bfd_xcoff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1181 const char *r_name)
1182 {
1183 unsigned int i;
1184
1185 for (i = 0;
1186 i < sizeof (xcoff_howto_table) / sizeof (xcoff_howto_table[0]);
1187 i++)
1188 if (xcoff_howto_table[i].name != NULL
1189 && strcasecmp (xcoff_howto_table[i].name, r_name) == 0)
1190 return &xcoff_howto_table[i];
1191
1192 return NULL;
1193 }
1194 \f
1195 /* XCOFF archive support. The original version of this code was by
1196 Damon A. Permezel. It was enhanced to permit cross support, and
1197 writing archive files, by Ian Lance Taylor, Cygnus Support.
1198
1199 XCOFF uses its own archive format. Everything is hooked together
1200 with file offset links, so it is possible to rapidly update an
1201 archive in place. Of course, we don't do that. An XCOFF archive
1202 has a real file header, not just an ARMAG string. The structure of
1203 the file header and of each archive header appear below.
1204
1205 An XCOFF archive also has a member table, which is a list of
1206 elements in the archive (you can get that by looking through the
1207 linked list, but you have to read a lot more of the file). The
1208 member table has a normal archive header with an empty name. It is
1209 normally (and perhaps must be) the second to last entry in the
1210 archive. The member table data is almost printable ASCII. It
1211 starts with a 12 character decimal string which is the number of
1212 entries in the table. For each entry it has a 12 character decimal
1213 string which is the offset in the archive of that member. These
1214 entries are followed by a series of null terminated strings which
1215 are the member names for each entry.
1216
1217 Finally, an XCOFF archive has a global symbol table, which is what
1218 we call the armap. The global symbol table has a normal archive
1219 header with an empty name. It is normally (and perhaps must be)
1220 the last entry in the archive. The contents start with a four byte
1221 binary number which is the number of entries. This is followed by
1222 a that many four byte binary numbers; each is the file offset of an
1223 entry in the archive. These numbers are followed by a series of
1224 null terminated strings, which are symbol names.
1225
1226 AIX 4.3 introduced a new archive format which can handle larger
1227 files and also 32- and 64-bit objects in the same archive. The
1228 things said above remain true except that there is now more than
1229 one global symbol table. The one is used to index 32-bit objects,
1230 the other for 64-bit objects.
1231
1232 The new archives (recognizable by the new ARMAG string) has larger
1233 field lengths so that we cannot really share any code. Also we have
1234 to take care that we are not generating the new form of archives
1235 on AIX 4.2 or earlier systems. */
1236
1237 /* XCOFF archives use this as a magic string. Note that both strings
1238 have the same length. */
1239
1240 /* Set the magic for archive. */
1241
1242 bfd_boolean
1243 bfd_xcoff_ar_archive_set_magic (bfd *abfd ATTRIBUTE_UNUSED,
1244 char *magic ATTRIBUTE_UNUSED)
1245 {
1246 /* Not supported yet. */
1247 return FALSE;
1248 /* bfd_xcoff_archive_set_magic (abfd, magic); */
1249 }
1250
1251 /* Read in the armap of an XCOFF archive. */
1252
1253 bfd_boolean
1254 _bfd_xcoff_slurp_armap (bfd *abfd)
1255 {
1256 file_ptr off;
1257 size_t namlen;
1258 bfd_size_type sz;
1259 bfd_byte *contents, *cend;
1260 bfd_vma c, i;
1261 carsym *arsym;
1262 bfd_byte *p;
1263
1264 if (xcoff_ardata (abfd) == NULL)
1265 {
1266 bfd_has_map (abfd) = FALSE;
1267 return TRUE;
1268 }
1269
1270 if (! xcoff_big_format_p (abfd))
1271 {
1272 /* This is for the old format. */
1273 struct xcoff_ar_hdr hdr;
1274
1275 off = strtol (xcoff_ardata (abfd)->symoff, (char **) NULL, 10);
1276 if (off == 0)
1277 {
1278 bfd_has_map (abfd) = FALSE;
1279 return TRUE;
1280 }
1281
1282 if (bfd_seek (abfd, off, SEEK_SET) != 0)
1283 return FALSE;
1284
1285 /* The symbol table starts with a normal archive header. */
1286 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
1287 != SIZEOF_AR_HDR)
1288 return FALSE;
1289
1290 /* Skip the name (normally empty). */
1291 namlen = strtol (hdr.namlen, (char **) NULL, 10);
1292 off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG;
1293 if (bfd_seek (abfd, off, SEEK_CUR) != 0)
1294 return FALSE;
1295
1296 sz = strtol (hdr.size, (char **) NULL, 10);
1297
1298 /* Read in the entire symbol table. */
1299 contents = (bfd_byte *) bfd_alloc (abfd, sz);
1300 if (contents == NULL)
1301 return FALSE;
1302 if (bfd_bread (contents, sz, abfd) != sz)
1303 return FALSE;
1304
1305 /* The symbol table starts with a four byte count. */
1306 c = H_GET_32 (abfd, contents);
1307
1308 if (c * 4 >= sz)
1309 {
1310 bfd_set_error (bfd_error_bad_value);
1311 return FALSE;
1312 }
1313
1314 bfd_ardata (abfd)->symdefs =
1315 ((carsym *) bfd_alloc (abfd, c * sizeof (carsym)));
1316 if (bfd_ardata (abfd)->symdefs == NULL)
1317 return FALSE;
1318
1319 /* After the count comes a list of four byte file offsets. */
1320 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 4;
1321 i < c;
1322 ++i, ++arsym, p += 4)
1323 arsym->file_offset = H_GET_32 (abfd, p);
1324 }
1325 else
1326 {
1327 /* This is for the new format. */
1328 struct xcoff_ar_hdr_big hdr;
1329
1330 off = strtol (xcoff_ardata_big (abfd)->symoff, (char **) NULL, 10);
1331 if (off == 0)
1332 {
1333 bfd_has_map (abfd) = FALSE;
1334 return TRUE;
1335 }
1336
1337 if (bfd_seek (abfd, off, SEEK_SET) != 0)
1338 return FALSE;
1339
1340 /* The symbol table starts with a normal archive header. */
1341 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd)
1342 != SIZEOF_AR_HDR_BIG)
1343 return FALSE;
1344
1345 /* Skip the name (normally empty). */
1346 namlen = strtol (hdr.namlen, (char **) NULL, 10);
1347 off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG;
1348 if (bfd_seek (abfd, off, SEEK_CUR) != 0)
1349 return FALSE;
1350
1351 /* XXX This actually has to be a call to strtoll (at least on 32-bit
1352 machines) since the field width is 20 and there numbers with more
1353 than 32 bits can be represented. */
1354 sz = strtol (hdr.size, (char **) NULL, 10);
1355
1356 /* Read in the entire symbol table. */
1357 contents = (bfd_byte *) bfd_alloc (abfd, sz);
1358 if (contents == NULL)
1359 return FALSE;
1360 if (bfd_bread (contents, sz, abfd) != sz)
1361 return FALSE;
1362
1363 /* The symbol table starts with an eight byte count. */
1364 c = H_GET_64 (abfd, contents);
1365
1366 if (c * 8 >= sz)
1367 {
1368 bfd_set_error (bfd_error_bad_value);
1369 return FALSE;
1370 }
1371
1372 bfd_ardata (abfd)->symdefs =
1373 ((carsym *) bfd_alloc (abfd, c * sizeof (carsym)));
1374 if (bfd_ardata (abfd)->symdefs == NULL)
1375 return FALSE;
1376
1377 /* After the count comes a list of eight byte file offsets. */
1378 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8;
1379 i < c;
1380 ++i, ++arsym, p += 8)
1381 arsym->file_offset = H_GET_64 (abfd, p);
1382 }
1383
1384 /* After the file offsets come null terminated symbol names. */
1385 cend = contents + sz;
1386 for (i = 0, arsym = bfd_ardata (abfd)->symdefs;
1387 i < c;
1388 ++i, ++arsym, p += strlen ((char *) p) + 1)
1389 {
1390 if (p >= cend)
1391 {
1392 bfd_set_error (bfd_error_bad_value);
1393 return FALSE;
1394 }
1395 arsym->name = (char *) p;
1396 }
1397
1398 bfd_ardata (abfd)->symdef_count = c;
1399 bfd_has_map (abfd) = TRUE;
1400
1401 return TRUE;
1402 }
1403
1404 /* See if this is an XCOFF archive. */
1405
1406 const bfd_target *
1407 _bfd_xcoff_archive_p (bfd *abfd)
1408 {
1409 struct artdata *tdata_hold;
1410 char magic[SXCOFFARMAG];
1411 bfd_size_type amt = SXCOFFARMAG;
1412
1413 if (bfd_bread (magic, amt, abfd) != amt)
1414 {
1415 if (bfd_get_error () != bfd_error_system_call)
1416 bfd_set_error (bfd_error_wrong_format);
1417 return NULL;
1418 }
1419
1420 if (strncmp (magic, XCOFFARMAG, SXCOFFARMAG) != 0
1421 && strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0)
1422 {
1423 bfd_set_error (bfd_error_wrong_format);
1424 return NULL;
1425 }
1426
1427 tdata_hold = bfd_ardata (abfd);
1428
1429 amt = sizeof (struct artdata);
1430 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
1431 if (bfd_ardata (abfd) == (struct artdata *) NULL)
1432 goto error_ret_restore;
1433
1434 /* Cleared by bfd_zalloc above.
1435 bfd_ardata (abfd)->cache = NULL;
1436 bfd_ardata (abfd)->archive_head = NULL;
1437 bfd_ardata (abfd)->symdefs = NULL;
1438 bfd_ardata (abfd)->extended_names = NULL;
1439 bfd_ardata (abfd)->extended_names_size = 0; */
1440
1441 /* Now handle the two formats. */
1442 if (magic[1] != 'b')
1443 {
1444 /* This is the old format. */
1445 struct xcoff_ar_file_hdr hdr;
1446
1447 /* Copy over the magic string. */
1448 memcpy (hdr.magic, magic, SXCOFFARMAG);
1449
1450 /* Now read the rest of the file header. */
1451 amt = SIZEOF_AR_FILE_HDR - SXCOFFARMAG;
1452 if (bfd_bread (&hdr.memoff, amt, abfd) != amt)
1453 {
1454 if (bfd_get_error () != bfd_error_system_call)
1455 bfd_set_error (bfd_error_wrong_format);
1456 goto error_ret;
1457 }
1458
1459 bfd_ardata (abfd)->first_file_filepos = strtol (hdr.firstmemoff,
1460 (char **) NULL, 10);
1461
1462 amt = SIZEOF_AR_FILE_HDR;
1463 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
1464 if (bfd_ardata (abfd)->tdata == NULL)
1465 goto error_ret;
1466
1467 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR);
1468 }
1469 else
1470 {
1471 /* This is the new format. */
1472 struct xcoff_ar_file_hdr_big hdr;
1473
1474 /* Copy over the magic string. */
1475 memcpy (hdr.magic, magic, SXCOFFARMAG);
1476
1477 /* Now read the rest of the file header. */
1478 amt = SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG;
1479 if (bfd_bread (&hdr.memoff, amt, abfd) != amt)
1480 {
1481 if (bfd_get_error () != bfd_error_system_call)
1482 bfd_set_error (bfd_error_wrong_format);
1483 goto error_ret;
1484 }
1485
1486 bfd_ardata (abfd)->first_file_filepos = bfd_scan_vma (hdr.firstmemoff,
1487 (const char **) 0,
1488 10);
1489
1490 amt = SIZEOF_AR_FILE_HDR_BIG;
1491 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
1492 if (bfd_ardata (abfd)->tdata == NULL)
1493 goto error_ret;
1494
1495 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG);
1496 }
1497
1498 if (! _bfd_xcoff_slurp_armap (abfd))
1499 {
1500 error_ret:
1501 bfd_release (abfd, bfd_ardata (abfd));
1502 error_ret_restore:
1503 bfd_ardata (abfd) = tdata_hold;
1504 return NULL;
1505 }
1506
1507 return abfd->xvec;
1508 }
1509
1510 /* Read the archive header in an XCOFF archive. */
1511
1512 void *
1513 _bfd_xcoff_read_ar_hdr (bfd *abfd)
1514 {
1515 bfd_size_type namlen;
1516 struct areltdata *ret;
1517 bfd_size_type amt = sizeof (struct areltdata);
1518
1519 ret = (struct areltdata *) bfd_zmalloc (amt);
1520 if (ret == NULL)
1521 return NULL;
1522
1523 if (! xcoff_big_format_p (abfd))
1524 {
1525 struct xcoff_ar_hdr hdr;
1526 struct xcoff_ar_hdr *hdrp;
1527
1528 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
1529 != SIZEOF_AR_HDR)
1530 {
1531 free (ret);
1532 return NULL;
1533 }
1534
1535 namlen = strtol (hdr.namlen, (char **) NULL, 10);
1536 amt = SIZEOF_AR_HDR + namlen + 1;
1537 hdrp = (struct xcoff_ar_hdr *) bfd_alloc (abfd, amt);
1538 if (hdrp == NULL)
1539 {
1540 free (ret);
1541 return NULL;
1542 }
1543 memcpy (hdrp, &hdr, SIZEOF_AR_HDR);
1544 if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR, namlen, abfd) != namlen)
1545 {
1546 free (ret);
1547 return NULL;
1548 }
1549 ((char *) hdrp)[SIZEOF_AR_HDR + namlen] = '\0';
1550
1551 ret->arch_header = (char *) hdrp;
1552 ret->parsed_size = strtol (hdr.size, (char **) NULL, 10);
1553 ret->filename = (char *) hdrp + SIZEOF_AR_HDR;
1554 }
1555 else
1556 {
1557 struct xcoff_ar_hdr_big hdr;
1558 struct xcoff_ar_hdr_big *hdrp;
1559
1560 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd)
1561 != SIZEOF_AR_HDR_BIG)
1562 {
1563 free (ret);
1564 return NULL;
1565 }
1566
1567 namlen = strtol (hdr.namlen, (char **) NULL, 10);
1568 amt = SIZEOF_AR_HDR_BIG + namlen + 1;
1569 hdrp = (struct xcoff_ar_hdr_big *) bfd_alloc (abfd, amt);
1570 if (hdrp == NULL)
1571 {
1572 free (ret);
1573 return NULL;
1574 }
1575 memcpy (hdrp, &hdr, SIZEOF_AR_HDR_BIG);
1576 if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR_BIG, namlen, abfd) != namlen)
1577 {
1578 free (ret);
1579 return NULL;
1580 }
1581 ((char *) hdrp)[SIZEOF_AR_HDR_BIG + namlen] = '\0';
1582
1583 ret->arch_header = (char *) hdrp;
1584 /* XXX This actually has to be a call to strtoll (at least on 32-bit
1585 machines) since the field width is 20 and there numbers with more
1586 than 32 bits can be represented. */
1587 ret->parsed_size = strtol (hdr.size, (char **) NULL, 10);
1588 ret->filename = (char *) hdrp + SIZEOF_AR_HDR_BIG;
1589 }
1590
1591 /* Skip over the XCOFFARFMAG at the end of the file name. */
1592 if (bfd_seek (abfd, (file_ptr) ((namlen & 1) + SXCOFFARFMAG), SEEK_CUR) != 0)
1593 return NULL;
1594
1595 return ret;
1596 }
1597
1598 /* Open the next element in an XCOFF archive. */
1599
1600 bfd *
1601 _bfd_xcoff_openr_next_archived_file (bfd *archive, bfd *last_file)
1602 {
1603 file_ptr filestart;
1604
1605 if (xcoff_ardata (archive) == NULL)
1606 {
1607 bfd_set_error (bfd_error_invalid_operation);
1608 return NULL;
1609 }
1610
1611 if (! xcoff_big_format_p (archive))
1612 {
1613 if (last_file == NULL)
1614 filestart = bfd_ardata (archive)->first_file_filepos;
1615 else
1616 filestart = strtol (arch_xhdr (last_file)->nextoff, (char **) NULL,
1617 10);
1618
1619 if (filestart == 0
1620 || filestart == strtol (xcoff_ardata (archive)->memoff,
1621 (char **) NULL, 10)
1622 || filestart == strtol (xcoff_ardata (archive)->symoff,
1623 (char **) NULL, 10))
1624 {
1625 bfd_set_error (bfd_error_no_more_archived_files);
1626 return NULL;
1627 }
1628 }
1629 else
1630 {
1631 if (last_file == NULL)
1632 filestart = bfd_ardata (archive)->first_file_filepos;
1633 else
1634 /* XXX These actually have to be a calls to strtoll (at least
1635 on 32-bit machines) since the fields's width is 20 and
1636 there numbers with more than 32 bits can be represented. */
1637 filestart = strtol (arch_xhdr_big (last_file)->nextoff, (char **) NULL,
1638 10);
1639
1640 /* XXX These actually have to be calls to strtoll (at least on 32-bit
1641 machines) since the fields's width is 20 and there numbers with more
1642 than 32 bits can be represented. */
1643 if (filestart == 0
1644 || filestart == strtol (xcoff_ardata_big (archive)->memoff,
1645 (char **) NULL, 10)
1646 || filestart == strtol (xcoff_ardata_big (archive)->symoff,
1647 (char **) NULL, 10))
1648 {
1649 bfd_set_error (bfd_error_no_more_archived_files);
1650 return NULL;
1651 }
1652 }
1653
1654 return _bfd_get_elt_at_filepos (archive, filestart);
1655 }
1656
1657 /* Stat an element in an XCOFF archive. */
1658
1659 int
1660 _bfd_xcoff_stat_arch_elt (bfd *abfd, struct stat *s)
1661 {
1662 if (abfd->arelt_data == NULL)
1663 {
1664 bfd_set_error (bfd_error_invalid_operation);
1665 return -1;
1666 }
1667
1668 if (! xcoff_big_format_p (abfd->my_archive))
1669 {
1670 struct xcoff_ar_hdr *hdrp = arch_xhdr (abfd);
1671
1672 s->st_mtime = strtol (hdrp->date, (char **) NULL, 10);
1673 s->st_uid = strtol (hdrp->uid, (char **) NULL, 10);
1674 s->st_gid = strtol (hdrp->gid, (char **) NULL, 10);
1675 s->st_mode = strtol (hdrp->mode, (char **) NULL, 8);
1676 s->st_size = arch_eltdata (abfd)->parsed_size;
1677 }
1678 else
1679 {
1680 struct xcoff_ar_hdr_big *hdrp = arch_xhdr_big (abfd);
1681
1682 s->st_mtime = strtol (hdrp->date, (char **) NULL, 10);
1683 s->st_uid = strtol (hdrp->uid, (char **) NULL, 10);
1684 s->st_gid = strtol (hdrp->gid, (char **) NULL, 10);
1685 s->st_mode = strtol (hdrp->mode, (char **) NULL, 8);
1686 s->st_size = arch_eltdata (abfd)->parsed_size;
1687 }
1688
1689 return 0;
1690 }
1691
1692 /* Normalize a file name for inclusion in an archive. */
1693
1694 static const char *
1695 normalize_filename (bfd *abfd)
1696 {
1697 const char *file;
1698 const char *filename;
1699
1700 file = bfd_get_filename (abfd);
1701 filename = strrchr (file, '/');
1702 if (filename != NULL)
1703 filename++;
1704 else
1705 filename = file;
1706 return filename;
1707 }
1708
1709 /* Write out an XCOFF armap. */
1710
1711 static bfd_boolean
1712 xcoff_write_armap_old (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
1713 struct orl *map, unsigned int orl_count, int stridx)
1714 {
1715 struct archive_iterator iterator;
1716 struct xcoff_ar_hdr hdr;
1717 char *p;
1718 unsigned char buf[4];
1719 unsigned int i;
1720
1721 memset (&hdr, 0, sizeof hdr);
1722 sprintf (hdr.size, "%ld", (long) (4 + orl_count * 4 + stridx));
1723 sprintf (hdr.nextoff, "%d", 0);
1724 memcpy (hdr.prevoff, xcoff_ardata (abfd)->memoff, XCOFFARMAG_ELEMENT_SIZE);
1725 sprintf (hdr.date, "%d", 0);
1726 sprintf (hdr.uid, "%d", 0);
1727 sprintf (hdr.gid, "%d", 0);
1728 sprintf (hdr.mode, "%d", 0);
1729 sprintf (hdr.namlen, "%d", 0);
1730
1731 /* We need spaces, not null bytes, in the header. */
1732 for (p = (char *) &hdr; p < (char *) &hdr + SIZEOF_AR_HDR; p++)
1733 if (*p == '\0')
1734 *p = ' ';
1735
1736 if (bfd_bwrite (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
1737 != SIZEOF_AR_HDR
1738 || (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd)
1739 != SXCOFFARFMAG))
1740 return FALSE;
1741
1742 H_PUT_32 (abfd, orl_count, buf);
1743 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
1744 return FALSE;
1745
1746 i = 0;
1747 archive_iterator_begin (&iterator, abfd);
1748 while (i < orl_count && archive_iterator_next (&iterator))
1749 while (map[i].u.abfd == iterator.current.member)
1750 {
1751 H_PUT_32 (abfd, iterator.current.offset, buf);
1752 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4)
1753 return FALSE;
1754 ++i;
1755 }
1756
1757 for (i = 0; i < orl_count; i++)
1758 {
1759 const char *name;
1760 size_t namlen;
1761
1762 name = *map[i].name;
1763 namlen = strlen (name);
1764 if (bfd_bwrite (name, (bfd_size_type) (namlen + 1), abfd) != namlen + 1)
1765 return FALSE;
1766 }
1767
1768 if ((stridx & 1) != 0)
1769 {
1770 char b;
1771
1772 b = '\0';
1773 if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
1774 return FALSE;
1775 }
1776
1777 return TRUE;
1778 }
1779
1780 static char buff20[XCOFFARMAGBIG_ELEMENT_SIZE + 1];
1781 #define FMT20 "%-20lld"
1782 #define FMT12 "%-12d"
1783 #define FMT12_OCTAL "%-12o"
1784 #define FMT4 "%-4d"
1785 #define PRINT20(d, v) \
1786 sprintf (buff20, FMT20, (long long)(v)), \
1787 memcpy ((void *) (d), buff20, 20)
1788
1789 #define PRINT12(d, v) \
1790 sprintf (buff20, FMT12, (int)(v)), \
1791 memcpy ((void *) (d), buff20, 12)
1792
1793 #define PRINT12_OCTAL(d, v) \
1794 sprintf (buff20, FMT12_OCTAL, (unsigned int)(v)), \
1795 memcpy ((void *) (d), buff20, 12)
1796
1797 #define PRINT4(d, v) \
1798 sprintf (buff20, FMT4, (int)(v)), \
1799 memcpy ((void *) (d), buff20, 4)
1800
1801 #define READ20(d, v) \
1802 buff20[20] = 0, \
1803 memcpy (buff20, (d), 20), \
1804 (v) = bfd_scan_vma (buff20, (const char **) NULL, 10)
1805
1806 static bfd_boolean
1807 do_pad (bfd *abfd, unsigned int number)
1808 {
1809 bfd_byte b = 0;
1810
1811 /* Limit pad to <= 4096. */
1812 if (number > 4096)
1813 return FALSE;
1814
1815 while (number--)
1816 if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
1817 return FALSE;
1818
1819 return TRUE;
1820 }
1821
1822 static bfd_boolean
1823 do_copy (bfd *out_bfd, bfd *in_bfd)
1824 {
1825 bfd_size_type remaining;
1826 bfd_byte buffer[DEFAULT_BUFFERSIZE];
1827
1828 if (bfd_seek (in_bfd, (file_ptr) 0, SEEK_SET) != 0)
1829 return FALSE;
1830
1831 remaining = arelt_size (in_bfd);
1832
1833 while (remaining >= DEFAULT_BUFFERSIZE)
1834 {
1835 if (bfd_bread (buffer, DEFAULT_BUFFERSIZE, in_bfd) != DEFAULT_BUFFERSIZE
1836 || bfd_bwrite (buffer, DEFAULT_BUFFERSIZE, out_bfd) != DEFAULT_BUFFERSIZE)
1837 return FALSE;
1838
1839 remaining -= DEFAULT_BUFFERSIZE;
1840 }
1841
1842 if (remaining)
1843 {
1844 if (bfd_bread (buffer, remaining, in_bfd) != remaining
1845 || bfd_bwrite (buffer, remaining, out_bfd) != remaining)
1846 return FALSE;
1847 }
1848
1849 return TRUE;
1850 }
1851
1852 static bfd_boolean
1853 xcoff_write_armap_big (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
1854 struct orl *map, unsigned int orl_count, int stridx)
1855 {
1856 struct archive_iterator iterator;
1857 struct xcoff_ar_file_hdr_big *fhdr;
1858 bfd_vma i, sym_32, sym_64, str_32, str_64;
1859 const bfd_arch_info_type *arch_info;
1860 bfd *current_bfd;
1861 size_t string_length;
1862 file_ptr nextoff, prevoff;
1863
1864 /* First, we look through the symbols and work out which are
1865 from 32-bit objects and which from 64-bit ones. */
1866 sym_32 = sym_64 = str_32 = str_64 = 0;
1867
1868 i = 0;
1869 for (current_bfd = abfd->archive_head;
1870 current_bfd != NULL && i < orl_count;
1871 current_bfd = current_bfd->archive_next)
1872 {
1873 arch_info = bfd_get_arch_info (current_bfd);
1874 while (map[i].u.abfd == current_bfd)
1875 {
1876 string_length = strlen (*map[i].name) + 1;
1877 if (arch_info->bits_per_address == 64)
1878 {
1879 sym_64++;
1880 str_64 += string_length;
1881 }
1882 else
1883 {
1884 sym_32++;
1885 str_32 += string_length;
1886 }
1887 i++;
1888 }
1889 }
1890
1891 /* A quick sanity check... */
1892 BFD_ASSERT (sym_64 + sym_32 == orl_count);
1893 /* Explicit cast to int for compiler. */
1894 BFD_ASSERT ((int)(str_64 + str_32) == stridx);
1895
1896 fhdr = xcoff_ardata_big (abfd);
1897
1898 /* xcoff_write_archive_contents_big passes nextoff in symoff. */
1899 READ20 (fhdr->memoff, prevoff);
1900 READ20 (fhdr->symoff, nextoff);
1901
1902 BFD_ASSERT (nextoff == bfd_tell (abfd));
1903
1904 /* Write out the symbol table.
1905 Layout :
1906
1907 standard big archive header
1908 0x0000 ar_size [0x14]
1909 0x0014 ar_nxtmem [0x14]
1910 0x0028 ar_prvmem [0x14]
1911 0x003C ar_date [0x0C]
1912 0x0048 ar_uid [0x0C]
1913 0x0054 ar_gid [0x0C]
1914 0x0060 ar_mod [0x0C]
1915 0x006C ar_namelen[0x04]
1916 0x0070 ar_fmag [SXCOFFARFMAG]
1917
1918 Symbol table
1919 0x0072 num_syms [0x08], binary
1920 0x0078 offsets [0x08 * num_syms], binary
1921 0x0086 + 0x08 * num_syms names [??]
1922 ?? pad to even bytes.
1923 */
1924
1925 if (sym_32)
1926 {
1927 struct xcoff_ar_hdr_big *hdr;
1928 char *symbol_table;
1929 char *st;
1930
1931 bfd_vma symbol_table_size =
1932 SIZEOF_AR_HDR_BIG
1933 + SXCOFFARFMAG
1934 + 8
1935 + 8 * sym_32
1936 + str_32 + (str_32 & 1);
1937
1938 symbol_table = bfd_zmalloc (symbol_table_size);
1939 if (symbol_table == NULL)
1940 return FALSE;
1941
1942 hdr = (struct xcoff_ar_hdr_big *) symbol_table;
1943
1944 PRINT20 (hdr->size, 8 + 8 * sym_32 + str_32 + (str_32 & 1));
1945
1946 if (sym_64)
1947 PRINT20 (hdr->nextoff, nextoff + symbol_table_size);
1948 else
1949 PRINT20 (hdr->nextoff, 0);
1950
1951 PRINT20 (hdr->prevoff, prevoff);
1952 PRINT12 (hdr->date, 0);
1953 PRINT12 (hdr->uid, 0);
1954 PRINT12 (hdr->gid, 0);
1955 PRINT12 (hdr->mode, 0);
1956 PRINT4 (hdr->namlen, 0) ;
1957
1958 st = symbol_table + SIZEOF_AR_HDR_BIG;
1959 memcpy (st, XCOFFARFMAG, SXCOFFARFMAG);
1960 st += SXCOFFARFMAG;
1961
1962 bfd_h_put_64 (abfd, sym_32, st);
1963 st += 8;
1964
1965 /* loop over the 32 bit offsets */
1966 i = 0;
1967 archive_iterator_begin (&iterator, abfd);
1968 while (i < orl_count && archive_iterator_next (&iterator))
1969 {
1970 arch_info = bfd_get_arch_info (iterator.current.member);
1971 while (map[i].u.abfd == iterator.current.member)
1972 {
1973 if (arch_info->bits_per_address == 32)
1974 {
1975 bfd_h_put_64 (abfd, iterator.current.offset, st);
1976 st += 8;
1977 }
1978 i++;
1979 }
1980 }
1981
1982 /* loop over the 32 bit symbol names */
1983 i = 0;
1984 for (current_bfd = abfd->archive_head;
1985 current_bfd != NULL && i < orl_count;
1986 current_bfd = current_bfd->archive_next)
1987 {
1988 arch_info = bfd_get_arch_info (current_bfd);
1989 while (map[i].u.abfd == current_bfd)
1990 {
1991 if (arch_info->bits_per_address == 32)
1992 {
1993 string_length = sprintf (st, "%s", *map[i].name);
1994 st += string_length + 1;
1995 }
1996 i++;
1997 }
1998 }
1999
2000 bfd_bwrite (symbol_table, symbol_table_size, abfd);
2001
2002 free (symbol_table);
2003
2004 prevoff = nextoff;
2005 nextoff = nextoff + symbol_table_size;
2006 }
2007 else
2008 PRINT20 (fhdr->symoff, 0);
2009
2010 if (sym_64)
2011 {
2012 struct xcoff_ar_hdr_big *hdr;
2013 char *symbol_table;
2014 char *st;
2015
2016 bfd_vma symbol_table_size =
2017 SIZEOF_AR_HDR_BIG
2018 + SXCOFFARFMAG
2019 + 8
2020 + 8 * sym_64
2021 + str_64 + (str_64 & 1);
2022
2023 symbol_table = bfd_zmalloc (symbol_table_size);
2024 if (symbol_table == NULL)
2025 return FALSE;
2026
2027 hdr = (struct xcoff_ar_hdr_big *) symbol_table;
2028
2029 PRINT20 (hdr->size, 8 + 8 * sym_64 + str_64 + (str_64 & 1));
2030 PRINT20 (hdr->nextoff, 0);
2031 PRINT20 (hdr->prevoff, prevoff);
2032 PRINT12 (hdr->date, 0);
2033 PRINT12 (hdr->uid, 0);
2034 PRINT12 (hdr->gid, 0);
2035 PRINT12 (hdr->mode, 0);
2036 PRINT4 (hdr->namlen, 0);
2037
2038 st = symbol_table + SIZEOF_AR_HDR_BIG;
2039 memcpy (st, XCOFFARFMAG, SXCOFFARFMAG);
2040 st += SXCOFFARFMAG;
2041
2042 bfd_h_put_64 (abfd, sym_64, st);
2043 st += 8;
2044
2045 /* loop over the 64 bit offsets */
2046 i = 0;
2047 archive_iterator_begin (&iterator, abfd);
2048 while (i < orl_count && archive_iterator_next (&iterator))
2049 {
2050 arch_info = bfd_get_arch_info (iterator.current.member);
2051 while (map[i].u.abfd == iterator.current.member)
2052 {
2053 if (arch_info->bits_per_address == 64)
2054 {
2055 bfd_h_put_64 (abfd, iterator.current.offset, st);
2056 st += 8;
2057 }
2058 i++;
2059 }
2060 }
2061
2062 /* loop over the 64 bit symbol names */
2063 i = 0;
2064 for (current_bfd = abfd->archive_head;
2065 current_bfd != NULL && i < orl_count;
2066 current_bfd = current_bfd->archive_next)
2067 {
2068 arch_info = bfd_get_arch_info (current_bfd);
2069 while (map[i].u.abfd == current_bfd)
2070 {
2071 if (arch_info->bits_per_address == 64)
2072 {
2073 string_length = sprintf (st, "%s", *map[i].name);
2074 st += string_length + 1;
2075 }
2076 i++;
2077 }
2078 }
2079
2080 bfd_bwrite (symbol_table, symbol_table_size, abfd);
2081
2082 free (symbol_table);
2083
2084 PRINT20 (fhdr->symoff64, nextoff);
2085 }
2086 else
2087 PRINT20 (fhdr->symoff64, 0);
2088
2089 return TRUE;
2090 }
2091
2092 bfd_boolean
2093 _bfd_xcoff_write_armap (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED,
2094 struct orl *map, unsigned int orl_count, int stridx)
2095 {
2096 if (! xcoff_big_format_p (abfd))
2097 return xcoff_write_armap_old (abfd, elength, map, orl_count, stridx);
2098 else
2099 return xcoff_write_armap_big (abfd, elength, map, orl_count, stridx);
2100 }
2101
2102 /* Write out an XCOFF archive. We always write an entire archive,
2103 rather than fussing with the freelist and so forth. */
2104
2105 static bfd_boolean
2106 xcoff_write_archive_contents_old (bfd *abfd)
2107 {
2108 struct archive_iterator iterator;
2109 struct xcoff_ar_file_hdr fhdr;
2110 bfd_size_type count;
2111 bfd_size_type total_namlen;
2112 file_ptr *offsets;
2113 bfd_boolean makemap;
2114 bfd_boolean hasobjects;
2115 file_ptr prevoff, nextoff;
2116 bfd *sub;
2117 size_t i;
2118 struct xcoff_ar_hdr ahdr;
2119 bfd_size_type size;
2120 char *p;
2121 char decbuf[XCOFFARMAG_ELEMENT_SIZE + 1];
2122
2123 memset (&fhdr, 0, sizeof fhdr);
2124 (void) strncpy (fhdr.magic, XCOFFARMAG, SXCOFFARMAG);
2125 sprintf (fhdr.firstmemoff, "%d", SIZEOF_AR_FILE_HDR);
2126 sprintf (fhdr.freeoff, "%d", 0);
2127
2128 count = 0;
2129 total_namlen = 0;
2130 for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next)
2131 {
2132 ++count;
2133 total_namlen += strlen (normalize_filename (sub)) + 1;
2134 if (sub->arelt_data == NULL)
2135 {
2136 sub->arelt_data = bfd_zmalloc (sizeof (struct areltdata));
2137 if (sub->arelt_data == NULL)
2138 return FALSE;
2139 }
2140 if (arch_xhdr (sub) == NULL)
2141 {
2142 struct xcoff_ar_hdr *ahdrp;
2143 struct stat s;
2144
2145 if (stat (bfd_get_filename (sub), &s) != 0)
2146 {
2147 bfd_set_error (bfd_error_system_call);
2148 return FALSE;
2149 }
2150
2151 ahdrp = bfd_zalloc (sub, sizeof (*ahdrp));
2152 if (ahdrp == NULL)
2153 return FALSE;
2154
2155 sprintf (ahdrp->size, "%ld", (long) s.st_size);
2156 sprintf (ahdrp->date, "%ld", (long) s.st_mtime);
2157 sprintf (ahdrp->uid, "%ld", (long) s.st_uid);
2158 sprintf (ahdrp->gid, "%ld", (long) s.st_gid);
2159 sprintf (ahdrp->mode, "%o", (unsigned int) s.st_mode);
2160
2161 arch_eltdata (sub)->arch_header = (char *) ahdrp;
2162 arch_eltdata (sub)->parsed_size = s.st_size;
2163 }
2164 }
2165 offsets = (file_ptr *) bfd_alloc (abfd, count * sizeof (file_ptr));
2166 if (offsets == NULL)
2167 return FALSE;
2168
2169 if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR, SEEK_SET) != 0)
2170 return FALSE;
2171
2172 makemap = bfd_has_map (abfd);
2173 hasobjects = FALSE;
2174 prevoff = 0;
2175 for (archive_iterator_begin (&iterator, abfd), i = 0;
2176 archive_iterator_next (&iterator);
2177 i++)
2178 {
2179 bfd_size_type namlen;
2180 struct xcoff_ar_hdr *ahdrp;
2181
2182 if (makemap && ! hasobjects)
2183 {
2184 if (bfd_check_format (iterator.current.member, bfd_object))
2185 hasobjects = TRUE;
2186 }
2187
2188 ahdrp = arch_xhdr (iterator.current.member);
2189 sprintf (ahdrp->prevoff, "%ld", (long) prevoff);
2190 sprintf (ahdrp->namlen, "%ld", (long) iterator.current.namlen);
2191 sprintf (ahdrp->nextoff, "%ld", (long) iterator.next.offset);
2192
2193 /* We need spaces, not null bytes, in the header. */
2194 for (p = (char *) ahdrp; p < (char *) ahdrp + SIZEOF_AR_HDR; p++)
2195 if (*p == '\0')
2196 *p = ' ';
2197
2198 if (!do_pad (abfd, iterator.current.leading_padding))
2199 return FALSE;
2200
2201 BFD_ASSERT (iterator.current.offset == bfd_tell (abfd));
2202 namlen = iterator.current.padded_namlen;
2203 if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR, abfd) != SIZEOF_AR_HDR
2204 || bfd_bwrite (iterator.current.name, namlen, abfd) != namlen
2205 || bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG
2206 || bfd_seek (iterator.current.member, 0, SEEK_SET) != 0
2207 || !do_copy (abfd, iterator.current.member)
2208 || !do_pad (abfd, iterator.current.trailing_padding))
2209 return FALSE;
2210
2211 offsets[i] = iterator.current.offset;
2212 prevoff = iterator.current.offset;
2213 }
2214
2215 sprintf (fhdr.lastmemoff, "%ld", (long) prevoff);
2216
2217 /* Write out the member table. */
2218
2219 nextoff = iterator.next.offset;
2220 BFD_ASSERT (nextoff == bfd_tell (abfd));
2221 sprintf (fhdr.memoff, "%ld", (long) nextoff);
2222
2223 memset (&ahdr, 0, sizeof ahdr);
2224 sprintf (ahdr.size, "%ld", (long) (XCOFFARMAG_ELEMENT_SIZE
2225 + count * XCOFFARMAG_ELEMENT_SIZE
2226 + total_namlen));
2227 sprintf (ahdr.prevoff, "%ld", (long) prevoff);
2228 sprintf (ahdr.date, "%d", 0);
2229 sprintf (ahdr.uid, "%d", 0);
2230 sprintf (ahdr.gid, "%d", 0);
2231 sprintf (ahdr.mode, "%d", 0);
2232 sprintf (ahdr.namlen, "%d", 0);
2233
2234 size = (SIZEOF_AR_HDR
2235 + XCOFFARMAG_ELEMENT_SIZE
2236 + count * XCOFFARMAG_ELEMENT_SIZE
2237 + total_namlen
2238 + SXCOFFARFMAG);
2239
2240 prevoff = nextoff;
2241 nextoff += size + (size & 1);
2242
2243 if (makemap && hasobjects)
2244 sprintf (ahdr.nextoff, "%ld", (long) nextoff);
2245 else
2246 sprintf (ahdr.nextoff, "%d", 0);
2247
2248 /* We need spaces, not null bytes, in the header. */
2249 for (p = (char *) &ahdr; p < (char *) &ahdr + SIZEOF_AR_HDR; p++)
2250 if (*p == '\0')
2251 *p = ' ';
2252
2253 if ((bfd_bwrite (&ahdr, (bfd_size_type) SIZEOF_AR_HDR, abfd)
2254 != SIZEOF_AR_HDR)
2255 || (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd)
2256 != SXCOFFARFMAG))
2257 return FALSE;
2258
2259 sprintf (decbuf, "%-12ld", (long) count);
2260 if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE, abfd)
2261 != XCOFFARMAG_ELEMENT_SIZE)
2262 return FALSE;
2263 for (i = 0; i < (size_t) count; i++)
2264 {
2265 sprintf (decbuf, "%-12ld", (long) offsets[i]);
2266 if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE,
2267 abfd) != XCOFFARMAG_ELEMENT_SIZE)
2268 return FALSE;
2269 }
2270 for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next)
2271 {
2272 const char *name;
2273 bfd_size_type namlen;
2274
2275 name = normalize_filename (sub);
2276 namlen = strlen (name);
2277 if (bfd_bwrite (name, namlen + 1, abfd) != namlen + 1)
2278 return FALSE;
2279 }
2280
2281 if (! do_pad (abfd, size & 1))
2282 return FALSE;
2283
2284 /* Write out the armap, if appropriate. */
2285 if (! makemap || ! hasobjects)
2286 sprintf (fhdr.symoff, "%d", 0);
2287 else
2288 {
2289 BFD_ASSERT (nextoff == bfd_tell (abfd));
2290 sprintf (fhdr.symoff, "%ld", (long) nextoff);
2291 bfd_ardata (abfd)->tdata = &fhdr;
2292 if (! _bfd_compute_and_write_armap (abfd, 0))
2293 return FALSE;
2294 }
2295
2296 /* Write out the archive file header. */
2297
2298 /* We need spaces, not null bytes, in the header. */
2299 for (p = (char *) &fhdr; p < (char *) &fhdr + SIZEOF_AR_FILE_HDR; p++)
2300 if (*p == '\0')
2301 *p = ' ';
2302
2303 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
2304 || (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR, abfd)
2305 != SIZEOF_AR_FILE_HDR))
2306 return FALSE;
2307
2308 return TRUE;
2309 }
2310
2311 static bfd_boolean
2312 xcoff_write_archive_contents_big (bfd *abfd)
2313 {
2314 struct xcoff_ar_file_hdr_big fhdr;
2315 bfd_size_type count;
2316 bfd_size_type total_namlen;
2317 file_ptr *offsets;
2318 bfd_boolean makemap;
2319 bfd_boolean hasobjects;
2320 file_ptr prevoff, nextoff;
2321 bfd *current_bfd;
2322 size_t i;
2323 struct xcoff_ar_hdr_big *hdr;
2324 bfd_size_type size;
2325 char *member_table, *mt;
2326 bfd_vma member_table_size;
2327 struct archive_iterator iterator;
2328
2329 memset (&fhdr, 0, SIZEOF_AR_FILE_HDR_BIG);
2330 memcpy (fhdr.magic, XCOFFARMAGBIG, SXCOFFARMAG);
2331
2332 if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR_BIG, SEEK_SET) != 0)
2333 return FALSE;
2334
2335 /* Calculate count and total_namlen. */
2336 makemap = bfd_has_map (abfd);
2337 hasobjects = FALSE;
2338 for (current_bfd = abfd->archive_head, count = 0, total_namlen = 0;
2339 current_bfd != NULL;
2340 current_bfd = current_bfd->archive_next, count++)
2341 {
2342 total_namlen += strlen (normalize_filename (current_bfd)) + 1;
2343
2344 if (makemap
2345 && ! hasobjects
2346 && bfd_check_format (current_bfd, bfd_object))
2347 hasobjects = TRUE;
2348
2349 if (current_bfd->arelt_data == NULL)
2350 {
2351 size = sizeof (struct areltdata);
2352 current_bfd->arelt_data = bfd_zmalloc (size);
2353 if (current_bfd->arelt_data == NULL)
2354 return FALSE;
2355 }
2356
2357 if (arch_xhdr_big (current_bfd) == NULL)
2358 {
2359 struct xcoff_ar_hdr_big *ahdrp;
2360 struct stat s;
2361
2362 /* XXX This should actually be a call to stat64 (at least on
2363 32-bit machines).
2364 XXX This call will fail if the original object is not found. */
2365 if (stat (bfd_get_filename (current_bfd), &s) != 0)
2366 {
2367 bfd_set_error (bfd_error_system_call);
2368 return FALSE;
2369 }
2370
2371 ahdrp = bfd_zalloc (current_bfd, sizeof (*ahdrp));
2372 if (ahdrp == NULL)
2373 return FALSE;
2374
2375 PRINT20 (ahdrp->size, s.st_size);
2376 PRINT12 (ahdrp->date, s.st_mtime);
2377 PRINT12 (ahdrp->uid, s.st_uid);
2378 PRINT12 (ahdrp->gid, s.st_gid);
2379 PRINT12_OCTAL (ahdrp->mode, s.st_mode);
2380
2381 arch_eltdata (current_bfd)->arch_header = (char *) ahdrp;
2382 arch_eltdata (current_bfd)->parsed_size = s.st_size;
2383 }
2384 }
2385
2386 offsets = NULL;
2387 if (count)
2388 {
2389 offsets = (file_ptr *) bfd_malloc (count * sizeof (file_ptr));
2390 if (offsets == NULL)
2391 return FALSE;
2392 }
2393
2394 prevoff = 0;
2395 for (archive_iterator_begin (&iterator, abfd), i = 0;
2396 archive_iterator_next (&iterator);
2397 i++)
2398 {
2399 bfd_size_type namlen;
2400 struct xcoff_ar_hdr_big *ahdrp;
2401
2402 ahdrp = arch_xhdr_big (iterator.current.member);
2403 PRINT20 (ahdrp->prevoff, prevoff);
2404 PRINT4 (ahdrp->namlen, iterator.current.namlen);
2405 PRINT20 (ahdrp->nextoff, iterator.next.offset);
2406
2407 if (!do_pad (abfd, iterator.current.leading_padding))
2408 return FALSE;
2409
2410 BFD_ASSERT (iterator.current.offset == bfd_tell (abfd));
2411 namlen = iterator.current.padded_namlen;
2412 if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR_BIG, abfd) != SIZEOF_AR_HDR_BIG
2413 || bfd_bwrite (iterator.current.name, namlen, abfd) != namlen
2414 || bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG
2415 || bfd_seek (iterator.current.member, 0, SEEK_SET) != 0
2416 || !do_copy (abfd, iterator.current.member)
2417 || !do_pad (abfd, iterator.current.trailing_padding))
2418 return FALSE;
2419
2420 offsets[i] = iterator.current.offset;
2421 prevoff = iterator.current.offset;
2422 }
2423
2424 if (count)
2425 {
2426 PRINT20 (fhdr.firstmemoff, offsets[0]);
2427 PRINT20 (fhdr.lastmemoff, prevoff);
2428 }
2429
2430 /* Write out the member table.
2431 Layout :
2432
2433 standard big archive header
2434 0x0000 ar_size [0x14]
2435 0x0014 ar_nxtmem [0x14]
2436 0x0028 ar_prvmem [0x14]
2437 0x003C ar_date [0x0C]
2438 0x0048 ar_uid [0x0C]
2439 0x0054 ar_gid [0x0C]
2440 0x0060 ar_mod [0x0C]
2441 0x006C ar_namelen[0x04]
2442 0x0070 ar_fmag [0x02]
2443
2444 Member table
2445 0x0072 count [0x14]
2446 0x0086 offsets [0x14 * counts]
2447 0x0086 + 0x14 * counts names [??]
2448 ?? pad to even bytes.
2449 */
2450
2451 nextoff = iterator.next.offset;
2452 BFD_ASSERT (nextoff == bfd_tell (abfd));
2453
2454 member_table_size = (SIZEOF_AR_HDR_BIG
2455 + SXCOFFARFMAG
2456 + XCOFFARMAGBIG_ELEMENT_SIZE
2457 + count * XCOFFARMAGBIG_ELEMENT_SIZE
2458 + total_namlen);
2459
2460 member_table_size += member_table_size & 1;
2461 member_table = bfd_zmalloc (member_table_size);
2462 if (member_table == NULL)
2463 return FALSE;
2464
2465 hdr = (struct xcoff_ar_hdr_big *) member_table;
2466
2467 PRINT20 (hdr->size, (XCOFFARMAGBIG_ELEMENT_SIZE
2468 + count * XCOFFARMAGBIG_ELEMENT_SIZE
2469 + total_namlen + (total_namlen & 1)));
2470 if (makemap && hasobjects)
2471 PRINT20 (hdr->nextoff, nextoff + member_table_size);
2472 else
2473 PRINT20 (hdr->nextoff, 0);
2474 PRINT20 (hdr->prevoff, prevoff);
2475 PRINT12 (hdr->date, 0);
2476 PRINT12 (hdr->uid, 0);
2477 PRINT12 (hdr->gid, 0);
2478 PRINT12 (hdr->mode, 0);
2479 PRINT4 (hdr->namlen, 0);
2480
2481 mt = member_table + SIZEOF_AR_HDR_BIG;
2482 memcpy (mt, XCOFFARFMAG, SXCOFFARFMAG);
2483 mt += SXCOFFARFMAG;
2484
2485 PRINT20 (mt, count);
2486 mt += XCOFFARMAGBIG_ELEMENT_SIZE;
2487 for (i = 0; i < (size_t) count; i++)
2488 {
2489 PRINT20 (mt, offsets[i]);
2490 mt += XCOFFARMAGBIG_ELEMENT_SIZE;
2491 }
2492
2493 if (count)
2494 {
2495 free (offsets);
2496 offsets = NULL;
2497 }
2498
2499 for (current_bfd = abfd->archive_head;
2500 current_bfd != NULL;
2501 current_bfd = current_bfd->archive_next)
2502 {
2503 const char *name;
2504 size_t namlen;
2505
2506 name = normalize_filename (current_bfd);
2507 namlen = sprintf (mt, "%s", name);
2508 mt += namlen + 1;
2509 }
2510
2511 if (bfd_bwrite (member_table, member_table_size, abfd) != member_table_size)
2512 return FALSE;
2513
2514 free (member_table);
2515
2516 PRINT20 (fhdr.memoff, nextoff);
2517
2518 prevoff = nextoff;
2519 nextoff += member_table_size;
2520
2521 /* Write out the armap, if appropriate. */
2522
2523 if (! makemap || ! hasobjects)
2524 PRINT20 (fhdr.symoff, 0);
2525 else
2526 {
2527 BFD_ASSERT (nextoff == bfd_tell (abfd));
2528
2529 /* Save nextoff in fhdr.symoff so the armap routine can use it. */
2530 PRINT20 (fhdr.symoff, nextoff);
2531
2532 bfd_ardata (abfd)->tdata = &fhdr;
2533 if (! _bfd_compute_and_write_armap (abfd, 0))
2534 return FALSE;
2535 }
2536
2537 /* Write out the archive file header. */
2538
2539 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
2540 || (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR_BIG,
2541 abfd) != SIZEOF_AR_FILE_HDR_BIG))
2542 return FALSE;
2543
2544 return TRUE;
2545 }
2546
2547 bfd_boolean
2548 _bfd_xcoff_write_archive_contents (bfd *abfd)
2549 {
2550 if (! xcoff_big_format_p (abfd))
2551 return xcoff_write_archive_contents_old (abfd);
2552 else
2553 return xcoff_write_archive_contents_big (abfd);
2554 }
2555 \f
2556 /* We can't use the usual coff_sizeof_headers routine, because AIX
2557 always uses an a.out header. */
2558
2559 int
2560 _bfd_xcoff_sizeof_headers (bfd *abfd,
2561 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2562 {
2563 int size;
2564
2565 size = FILHSZ;
2566 if (xcoff_data (abfd)->full_aouthdr)
2567 size += AOUTSZ;
2568 else
2569 size += SMALL_AOUTSZ;
2570 size += abfd->section_count * SCNHSZ;
2571 return size;
2572 }
2573 \f
2574 /* Routines to swap information in the XCOFF .loader section. If we
2575 ever need to write an XCOFF loader, this stuff will need to be
2576 moved to another file shared by the linker (which XCOFF calls the
2577 ``binder'') and the loader. */
2578
2579 /* Swap in the ldhdr structure. */
2580
2581 static void
2582 xcoff_swap_ldhdr_in (bfd *abfd, const void * s, struct internal_ldhdr *dst)
2583 {
2584 const struct external_ldhdr *src = (const struct external_ldhdr *) s;
2585
2586 dst->l_version = bfd_get_32 (abfd, src->l_version);
2587 dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms);
2588 dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc);
2589 dst->l_istlen = bfd_get_32 (abfd, src->l_istlen);
2590 dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid);
2591 dst->l_impoff = bfd_get_32 (abfd, src->l_impoff);
2592 dst->l_stlen = bfd_get_32 (abfd, src->l_stlen);
2593 dst->l_stoff = bfd_get_32 (abfd, src->l_stoff);
2594 }
2595
2596 /* Swap out the ldhdr structure. */
2597
2598 static void
2599 xcoff_swap_ldhdr_out (bfd *abfd, const struct internal_ldhdr *src, void * d)
2600 {
2601 struct external_ldhdr *dst = (struct external_ldhdr *) d;
2602
2603 bfd_put_32 (abfd, (bfd_vma) src->l_version, dst->l_version);
2604 bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms);
2605 bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc);
2606 bfd_put_32 (abfd, src->l_istlen, dst->l_istlen);
2607 bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid);
2608 bfd_put_32 (abfd, src->l_impoff, dst->l_impoff);
2609 bfd_put_32 (abfd, src->l_stlen, dst->l_stlen);
2610 bfd_put_32 (abfd, src->l_stoff, dst->l_stoff);
2611 }
2612
2613 /* Swap in the ldsym structure. */
2614
2615 static void
2616 xcoff_swap_ldsym_in (bfd *abfd, const void * s, struct internal_ldsym *dst)
2617 {
2618 const struct external_ldsym *src = (const struct external_ldsym *) s;
2619
2620 if (bfd_get_32 (abfd, src->_l._l_l._l_zeroes) != 0) {
2621 memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
2622 } else {
2623 dst->_l._l_l._l_zeroes = 0;
2624 dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->_l._l_l._l_offset);
2625 }
2626 dst->l_value = bfd_get_32 (abfd, src->l_value);
2627 dst->l_scnum = bfd_get_16 (abfd, src->l_scnum);
2628 dst->l_smtype = bfd_get_8 (abfd, src->l_smtype);
2629 dst->l_smclas = bfd_get_8 (abfd, src->l_smclas);
2630 dst->l_ifile = bfd_get_32 (abfd, src->l_ifile);
2631 dst->l_parm = bfd_get_32 (abfd, src->l_parm);
2632 }
2633
2634 /* Swap out the ldsym structure. */
2635
2636 static void
2637 xcoff_swap_ldsym_out (bfd *abfd, const struct internal_ldsym *src, void * d)
2638 {
2639 struct external_ldsym *dst = (struct external_ldsym *) d;
2640
2641 if (src->_l._l_l._l_zeroes != 0)
2642 memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN);
2643 else
2644 {
2645 bfd_put_32 (abfd, (bfd_vma) 0, dst->_l._l_l._l_zeroes);
2646 bfd_put_32 (abfd, (bfd_vma) src->_l._l_l._l_offset,
2647 dst->_l._l_l._l_offset);
2648 }
2649 bfd_put_32 (abfd, src->l_value, dst->l_value);
2650 bfd_put_16 (abfd, (bfd_vma) src->l_scnum, dst->l_scnum);
2651 bfd_put_8 (abfd, src->l_smtype, dst->l_smtype);
2652 bfd_put_8 (abfd, src->l_smclas, dst->l_smclas);
2653 bfd_put_32 (abfd, src->l_ifile, dst->l_ifile);
2654 bfd_put_32 (abfd, src->l_parm, dst->l_parm);
2655 }
2656
2657 static void
2658 xcoff_swap_reloc_in (bfd *abfd, void * s, void * d)
2659 {
2660 struct external_reloc *src = (struct external_reloc *) s;
2661 struct internal_reloc *dst = (struct internal_reloc *) d;
2662
2663 memset (dst, 0, sizeof (struct internal_reloc));
2664
2665 dst->r_vaddr = bfd_get_32 (abfd, src->r_vaddr);
2666 dst->r_symndx = bfd_get_32 (abfd, src->r_symndx);
2667 dst->r_size = bfd_get_8 (abfd, src->r_size);
2668 dst->r_type = bfd_get_8 (abfd, src->r_type);
2669 }
2670
2671 static unsigned int
2672 xcoff_swap_reloc_out (bfd *abfd, void * s, void * d)
2673 {
2674 struct internal_reloc *src = (struct internal_reloc *) s;
2675 struct external_reloc *dst = (struct external_reloc *) d;
2676
2677 bfd_put_32 (abfd, src->r_vaddr, dst->r_vaddr);
2678 bfd_put_32 (abfd, src->r_symndx, dst->r_symndx);
2679 bfd_put_8 (abfd, src->r_type, dst->r_type);
2680 bfd_put_8 (abfd, src->r_size, dst->r_size);
2681
2682 return bfd_coff_relsz (abfd);
2683 }
2684
2685 /* Swap in the ldrel structure. */
2686
2687 static void
2688 xcoff_swap_ldrel_in (bfd *abfd, const void * s, struct internal_ldrel *dst)
2689 {
2690 const struct external_ldrel *src = (const struct external_ldrel *) s;
2691
2692 dst->l_vaddr = bfd_get_32 (abfd, src->l_vaddr);
2693 dst->l_symndx = bfd_get_32 (abfd, src->l_symndx);
2694 dst->l_rtype = bfd_get_16 (abfd, src->l_rtype);
2695 dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm);
2696 }
2697
2698 /* Swap out the ldrel structure. */
2699
2700 static void
2701 xcoff_swap_ldrel_out (bfd *abfd, const struct internal_ldrel *src, void * d)
2702 {
2703 struct external_ldrel *dst = (struct external_ldrel *) d;
2704
2705 bfd_put_32 (abfd, src->l_vaddr, dst->l_vaddr);
2706 bfd_put_32 (abfd, src->l_symndx, dst->l_symndx);
2707 bfd_put_16 (abfd, (bfd_vma) src->l_rtype, dst->l_rtype);
2708 bfd_put_16 (abfd, (bfd_vma) src->l_rsecnm, dst->l_rsecnm);
2709 }
2710 \f
2711
2712 bfd_boolean
2713 xcoff_reloc_type_noop (bfd *input_bfd ATTRIBUTE_UNUSED,
2714 asection *input_section ATTRIBUTE_UNUSED,
2715 bfd *output_bfd ATTRIBUTE_UNUSED,
2716 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2717 struct internal_syment *sym ATTRIBUTE_UNUSED,
2718 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2719 bfd_vma val ATTRIBUTE_UNUSED,
2720 bfd_vma addend ATTRIBUTE_UNUSED,
2721 bfd_vma *relocation ATTRIBUTE_UNUSED,
2722 bfd_byte *contents ATTRIBUTE_UNUSED)
2723 {
2724 return TRUE;
2725 }
2726
2727 bfd_boolean
2728 xcoff_reloc_type_fail (bfd *input_bfd,
2729 asection *input_section ATTRIBUTE_UNUSED,
2730 bfd *output_bfd ATTRIBUTE_UNUSED,
2731 struct internal_reloc *rel,
2732 struct internal_syment *sym ATTRIBUTE_UNUSED,
2733 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2734 bfd_vma val ATTRIBUTE_UNUSED,
2735 bfd_vma addend ATTRIBUTE_UNUSED,
2736 bfd_vma *relocation ATTRIBUTE_UNUSED,
2737 bfd_byte *contents ATTRIBUTE_UNUSED)
2738 {
2739 (*_bfd_error_handler)
2740 (_("%s: unsupported relocation type 0x%02x"),
2741 bfd_get_filename (input_bfd), (unsigned int) rel->r_type);
2742 bfd_set_error (bfd_error_bad_value);
2743 return FALSE;
2744 }
2745
2746 bfd_boolean
2747 xcoff_reloc_type_pos (bfd *input_bfd ATTRIBUTE_UNUSED,
2748 asection *input_section ATTRIBUTE_UNUSED,
2749 bfd *output_bfd ATTRIBUTE_UNUSED,
2750 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2751 struct internal_syment *sym ATTRIBUTE_UNUSED,
2752 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2753 bfd_vma val,
2754 bfd_vma addend,
2755 bfd_vma *relocation,
2756 bfd_byte *contents ATTRIBUTE_UNUSED)
2757 {
2758 *relocation = val + addend;
2759 return TRUE;
2760 }
2761
2762 bfd_boolean
2763 xcoff_reloc_type_neg (bfd *input_bfd ATTRIBUTE_UNUSED,
2764 asection *input_section ATTRIBUTE_UNUSED,
2765 bfd *output_bfd ATTRIBUTE_UNUSED,
2766 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2767 struct internal_syment *sym ATTRIBUTE_UNUSED,
2768 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2769 bfd_vma val,
2770 bfd_vma addend,
2771 bfd_vma *relocation,
2772 bfd_byte *contents ATTRIBUTE_UNUSED)
2773 {
2774 *relocation = addend - val;
2775 return TRUE;
2776 }
2777
2778 bfd_boolean
2779 xcoff_reloc_type_rel (bfd *input_bfd ATTRIBUTE_UNUSED,
2780 asection *input_section,
2781 bfd *output_bfd ATTRIBUTE_UNUSED,
2782 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2783 struct internal_syment *sym ATTRIBUTE_UNUSED,
2784 struct reloc_howto_struct *howto,
2785 bfd_vma val,
2786 bfd_vma addend,
2787 bfd_vma *relocation,
2788 bfd_byte *contents ATTRIBUTE_UNUSED)
2789 {
2790 howto->pc_relative = TRUE;
2791
2792 /* A PC relative reloc includes the section address. */
2793 addend += input_section->vma;
2794
2795 *relocation = val + addend;
2796 *relocation -= (input_section->output_section->vma
2797 + input_section->output_offset);
2798 return TRUE;
2799 }
2800
2801 bfd_boolean
2802 xcoff_reloc_type_toc (bfd *input_bfd,
2803 asection *input_section ATTRIBUTE_UNUSED,
2804 bfd *output_bfd,
2805 struct internal_reloc *rel,
2806 struct internal_syment *sym,
2807 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED,
2808 bfd_vma val,
2809 bfd_vma addend ATTRIBUTE_UNUSED,
2810 bfd_vma *relocation,
2811 bfd_byte *contents ATTRIBUTE_UNUSED)
2812 {
2813 struct xcoff_link_hash_entry *h;
2814
2815 if (0 > rel->r_symndx)
2816 return FALSE;
2817
2818 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
2819
2820 if (h != NULL && h->smclas != XMC_TD)
2821 {
2822 if (h->toc_section == NULL)
2823 {
2824 (*_bfd_error_handler)
2825 (_("%s: TOC reloc at 0x%x to symbol `%s' with no TOC entry"),
2826 bfd_get_filename (input_bfd), rel->r_vaddr,
2827 h->root.root.string);
2828 bfd_set_error (bfd_error_bad_value);
2829 return FALSE;
2830 }
2831
2832 BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
2833 val = (h->toc_section->output_section->vma
2834 + h->toc_section->output_offset);
2835 }
2836
2837 *relocation = ((val - xcoff_data (output_bfd)->toc)
2838 - (sym->n_value - xcoff_data (input_bfd)->toc));
2839 return TRUE;
2840 }
2841
2842 bfd_boolean
2843 xcoff_reloc_type_ba (bfd *input_bfd ATTRIBUTE_UNUSED,
2844 asection *input_section ATTRIBUTE_UNUSED,
2845 bfd *output_bfd ATTRIBUTE_UNUSED,
2846 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2847 struct internal_syment *sym ATTRIBUTE_UNUSED,
2848 struct reloc_howto_struct *howto,
2849 bfd_vma val,
2850 bfd_vma addend,
2851 bfd_vma *relocation,
2852 bfd_byte *contents ATTRIBUTE_UNUSED)
2853 {
2854 howto->src_mask &= ~3;
2855 howto->dst_mask = howto->src_mask;
2856
2857 *relocation = val + addend;
2858
2859 return TRUE;
2860 }
2861
2862 static bfd_boolean
2863 xcoff_reloc_type_br (bfd *input_bfd,
2864 asection *input_section,
2865 bfd *output_bfd ATTRIBUTE_UNUSED,
2866 struct internal_reloc *rel,
2867 struct internal_syment *sym ATTRIBUTE_UNUSED,
2868 struct reloc_howto_struct *howto,
2869 bfd_vma val,
2870 bfd_vma addend,
2871 bfd_vma *relocation,
2872 bfd_byte *contents)
2873 {
2874 struct xcoff_link_hash_entry *h;
2875 bfd_vma section_offset;
2876
2877 if (0 > rel->r_symndx)
2878 return FALSE;
2879
2880 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
2881 section_offset = rel->r_vaddr - input_section->vma;
2882
2883 /* If we see an R_BR or R_RBR reloc which is jumping to global
2884 linkage code, and it is followed by an appropriate cror nop
2885 instruction, we replace the cror with lwz r2,20(r1). This
2886 restores the TOC after the glink code. Contrariwise, if the
2887 call is followed by a lwz r2,20(r1), but the call is not
2888 going to global linkage code, we can replace the load with a
2889 cror. */
2890 if (NULL != h
2891 && (bfd_link_hash_defined == h->root.type
2892 || bfd_link_hash_defweak == h->root.type)
2893 && section_offset + 8 <= input_section->size)
2894 {
2895 bfd_byte *pnext;
2896 unsigned long next;
2897
2898 pnext = contents + section_offset + 4;
2899 next = bfd_get_32 (input_bfd, pnext);
2900
2901 /* The _ptrgl function is magic. It is used by the AIX
2902 compiler to call a function through a pointer. */
2903 if (h->smclas == XMC_GL || strcmp (h->root.root.string, "._ptrgl") == 0)
2904 {
2905 if (next == 0x4def7b82 /* cror 15,15,15 */
2906 || next == 0x4ffffb82 /* cror 31,31,31 */
2907 || next == 0x60000000) /* ori r0,r0,0 */
2908 bfd_put_32 (input_bfd, 0x80410014, pnext); /* lwz r2,20(r1) */
2909
2910 }
2911 else
2912 {
2913 if (next == 0x80410014) /* lwz r2,20(r1) */
2914 bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */
2915 }
2916 }
2917 else if (NULL != h && bfd_link_hash_undefined == h->root.type)
2918 {
2919 /* Normally, this relocation is against a defined symbol. In the
2920 case where this is a partial link and the output section offset
2921 is greater than 2^25, the linker will return an invalid error
2922 message that the relocation has been truncated. Yes it has been
2923 truncated but no it not important. For this case, disable the
2924 overflow checking. */
2925
2926 howto->complain_on_overflow = complain_overflow_dont;
2927 }
2928
2929 /* The original PC-relative relocation is biased by -r_vaddr, so adding
2930 the value below will give the absolute target address. */
2931 *relocation = val + addend + rel->r_vaddr;
2932
2933 howto->src_mask &= ~3;
2934 howto->dst_mask = howto->src_mask;
2935
2936 if (h != NULL
2937 && (h->root.type == bfd_link_hash_defined
2938 || h->root.type == bfd_link_hash_defweak)
2939 && bfd_is_abs_section (h->root.u.def.section)
2940 && section_offset + 4 <= input_section->size)
2941 {
2942 bfd_byte *ptr;
2943 bfd_vma insn;
2944
2945 /* Turn the relative branch into an absolute one by setting the
2946 AA bit. */
2947 ptr = contents + section_offset;
2948 insn = bfd_get_32 (input_bfd, ptr);
2949 insn |= 2;
2950 bfd_put_32 (input_bfd, insn, ptr);
2951
2952 /* Make the howto absolute too. */
2953 howto->pc_relative = FALSE;
2954 howto->complain_on_overflow = complain_overflow_bitfield;
2955 }
2956 else
2957 {
2958 /* Use a PC-relative howto and subtract the instruction's address
2959 from the target address we calculated above. */
2960 howto->pc_relative = TRUE;
2961 *relocation -= (input_section->output_section->vma
2962 + input_section->output_offset
2963 + section_offset);
2964 }
2965 return TRUE;
2966 }
2967
2968 bfd_boolean
2969 xcoff_reloc_type_crel (bfd *input_bfd ATTRIBUTE_UNUSED,
2970 asection *input_section,
2971 bfd *output_bfd ATTRIBUTE_UNUSED,
2972 struct internal_reloc *rel ATTRIBUTE_UNUSED,
2973 struct internal_syment *sym ATTRIBUTE_UNUSED,
2974 struct reloc_howto_struct *howto,
2975 bfd_vma val ATTRIBUTE_UNUSED,
2976 bfd_vma addend,
2977 bfd_vma *relocation,
2978 bfd_byte *contents ATTRIBUTE_UNUSED)
2979 {
2980 howto->pc_relative = TRUE;
2981 howto->src_mask &= ~3;
2982 howto->dst_mask = howto->src_mask;
2983
2984 /* A PC relative reloc includes the section address. */
2985 addend += input_section->vma;
2986
2987 *relocation = val + addend;
2988 *relocation -= (input_section->output_section->vma
2989 + input_section->output_offset);
2990 return TRUE;
2991 }
2992
2993 static bfd_boolean
2994 xcoff_complain_overflow_dont_func (bfd *input_bfd ATTRIBUTE_UNUSED,
2995 bfd_vma val ATTRIBUTE_UNUSED,
2996 bfd_vma relocation ATTRIBUTE_UNUSED,
2997 struct reloc_howto_struct *
2998 howto ATTRIBUTE_UNUSED)
2999 {
3000 return FALSE;
3001 }
3002
3003 static bfd_boolean
3004 xcoff_complain_overflow_bitfield_func (bfd *input_bfd,
3005 bfd_vma val,
3006 bfd_vma relocation,
3007 struct reloc_howto_struct *howto)
3008 {
3009 bfd_vma fieldmask, signmask, ss;
3010 bfd_vma a, b, sum;
3011
3012 /* Get the values to be added together. For signed and unsigned
3013 relocations, we assume that all values should be truncated to
3014 the size of an address. For bitfields, all the bits matter.
3015 See also bfd_check_overflow. */
3016 fieldmask = N_ONES (howto->bitsize);
3017 a = relocation;
3018 b = val & howto->src_mask;
3019
3020 /* Much like unsigned, except no trimming with addrmask. In
3021 addition, the sum overflows if there is a carry out of
3022 the bfd_vma, i.e., the sum is less than either input
3023 operand. */
3024 a >>= howto->rightshift;
3025 b >>= howto->bitpos;
3026
3027 /* Bitfields are sometimes used for signed numbers; for
3028 example, a 13-bit field sometimes represents values in
3029 0..8191 and sometimes represents values in -4096..4095.
3030 If the field is signed and a is -4095 (0x1001) and b is
3031 -1 (0x1fff), the sum is -4096 (0x1000), but (0x1001 +
3032 0x1fff is 0x3000). It's not clear how to handle this
3033 everywhere, since there is not way to know how many bits
3034 are significant in the relocation, but the original code
3035 assumed that it was fully sign extended, and we will keep
3036 that assumption. */
3037 signmask = (fieldmask >> 1) + 1;
3038
3039 if ((a & ~ fieldmask) != 0)
3040 {
3041 /* Some bits out of the field are set. This might not
3042 be a problem: if this is a signed bitfield, it is OK
3043 iff all the high bits are set, including the sign
3044 bit. We'll try setting all but the most significant
3045 bit in the original relocation value: if this is all
3046 ones, we are OK, assuming a signed bitfield. */
3047 ss = (signmask << howto->rightshift) - 1;
3048 if ((ss | relocation) != ~ (bfd_vma) 0)
3049 return TRUE;
3050 a &= fieldmask;
3051 }
3052
3053 /* We just assume (b & ~ fieldmask) == 0. */
3054
3055 /* We explicitly permit wrap around if this relocation
3056 covers the high bit of an address. The Linux kernel
3057 relies on it, and it is the only way to write assembler
3058 code which can run when loaded at a location 0x80000000
3059 away from the location at which it is linked. */
3060 if (howto->bitsize + howto->rightshift
3061 == bfd_arch_bits_per_address (input_bfd))
3062 return FALSE;
3063
3064 sum = a + b;
3065 if (sum < a || (sum & ~ fieldmask) != 0)
3066 {
3067 /* There was a carry out, or the field overflow. Test
3068 for signed operands again. Here is the overflow test
3069 is as for complain_overflow_signed. */
3070 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
3071 return TRUE;
3072 }
3073
3074 return FALSE;
3075 }
3076
3077 static bfd_boolean
3078 xcoff_complain_overflow_signed_func (bfd *input_bfd,
3079 bfd_vma val,
3080 bfd_vma relocation,
3081 struct reloc_howto_struct *howto)
3082 {
3083 bfd_vma addrmask, fieldmask, signmask, ss;
3084 bfd_vma a, b, sum;
3085
3086 /* Get the values to be added together. For signed and unsigned
3087 relocations, we assume that all values should be truncated to
3088 the size of an address. For bitfields, all the bits matter.
3089 See also bfd_check_overflow. */
3090 fieldmask = N_ONES (howto->bitsize);
3091 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
3092 a = relocation;
3093 b = val & howto->src_mask;
3094
3095 a = (a & addrmask) >> howto->rightshift;
3096
3097 /* If any sign bits are set, all sign bits must be set.
3098 That is, A must be a valid negative address after
3099 shifting. */
3100 signmask = ~ (fieldmask >> 1);
3101 ss = a & signmask;
3102 if (ss != 0 && ss != ((addrmask >> howto->rightshift) & signmask))
3103 return TRUE;
3104
3105 /* We only need this next bit of code if the sign bit of B
3106 is below the sign bit of A. This would only happen if
3107 SRC_MASK had fewer bits than BITSIZE. Note that if
3108 SRC_MASK has more bits than BITSIZE, we can get into
3109 trouble; we would need to verify that B is in range, as
3110 we do for A above. */
3111 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
3112 if ((b & signmask) != 0)
3113 {
3114 /* Set all the bits above the sign bit. */
3115 b -= signmask <<= 1;
3116 }
3117
3118 b = (b & addrmask) >> howto->bitpos;
3119
3120 /* Now we can do the addition. */
3121 sum = a + b;
3122
3123 /* See if the result has the correct sign. Bits above the
3124 sign bit are junk now; ignore them. If the sum is
3125 positive, make sure we did not have all negative inputs;
3126 if the sum is negative, make sure we did not have all
3127 positive inputs. The test below looks only at the sign
3128 bits, and it really just
3129 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
3130 */
3131 signmask = (fieldmask >> 1) + 1;
3132 if (((~ (a ^ b)) & (a ^ sum)) & signmask)
3133 return TRUE;
3134
3135 return FALSE;
3136 }
3137
3138 static bfd_boolean
3139 xcoff_complain_overflow_unsigned_func (bfd *input_bfd,
3140 bfd_vma val,
3141 bfd_vma relocation,
3142 struct reloc_howto_struct *howto)
3143 {
3144 bfd_vma addrmask, fieldmask;
3145 bfd_vma a, b, sum;
3146
3147 /* Get the values to be added together. For signed and unsigned
3148 relocations, we assume that all values should be truncated to
3149 the size of an address. For bitfields, all the bits matter.
3150 See also bfd_check_overflow. */
3151 fieldmask = N_ONES (howto->bitsize);
3152 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
3153 a = relocation;
3154 b = val & howto->src_mask;
3155
3156 /* Checking for an unsigned overflow is relatively easy:
3157 trim the addresses and add, and trim the result as well.
3158 Overflow is normally indicated when the result does not
3159 fit in the field. However, we also need to consider the
3160 case when, e.g., fieldmask is 0x7fffffff or smaller, an
3161 input is 0x80000000, and bfd_vma is only 32 bits; then we
3162 will get sum == 0, but there is an overflow, since the
3163 inputs did not fit in the field. Instead of doing a
3164 separate test, we can check for this by or-ing in the
3165 operands when testing for the sum overflowing its final
3166 field. */
3167 a = (a & addrmask) >> howto->rightshift;
3168 b = (b & addrmask) >> howto->bitpos;
3169 sum = (a + b) & addrmask;
3170 if ((a | b | sum) & ~ fieldmask)
3171 return TRUE;
3172
3173 return FALSE;
3174 }
3175
3176 /* This is the relocation function for the RS/6000/POWER/PowerPC.
3177 This is currently the only processor which uses XCOFF; I hope that
3178 will never change.
3179
3180 I took the relocation type definitions from two documents:
3181 the PowerPC AIX Version 4 Application Binary Interface, First
3182 Edition (April 1992), and the PowerOpen ABI, Big-Endian
3183 32-Bit Hardware Implementation (June 30, 1994). Differences
3184 between the documents are noted below.
3185
3186 Unsupported r_type's
3187
3188 R_RTB:
3189 R_RRTBI:
3190 R_RRTBA:
3191
3192 These relocs are defined by the PowerPC ABI to be
3193 relative branches which use half of the difference
3194 between the symbol and the program counter. I can't
3195 quite figure out when this is useful. These relocs are
3196 not defined by the PowerOpen ABI.
3197
3198 Supported r_type's
3199
3200 R_POS:
3201 Simple positive relocation.
3202
3203 R_NEG:
3204 Simple negative relocation.
3205
3206 R_REL:
3207 Simple PC relative relocation.
3208
3209 R_TOC:
3210 TOC relative relocation. The value in the instruction in
3211 the input file is the offset from the input file TOC to
3212 the desired location. We want the offset from the final
3213 TOC to the desired location. We have:
3214 isym = iTOC + in
3215 iinsn = in + o
3216 osym = oTOC + on
3217 oinsn = on + o
3218 so we must change insn by on - in.
3219
3220 R_GL:
3221 GL linkage relocation. The value of this relocation
3222 is the address of the entry in the TOC section.
3223
3224 R_TCL:
3225 Local object TOC address. I can't figure out the
3226 difference between this and case R_GL.
3227
3228 R_TRL:
3229 TOC relative relocation. A TOC relative load instruction
3230 which may be changed to a load address instruction.
3231 FIXME: We don't currently implement this optimization.
3232
3233 R_TRLA:
3234 TOC relative relocation. This is a TOC relative load
3235 address instruction which may be changed to a load
3236 instruction. FIXME: I don't know if this is the correct
3237 implementation.
3238
3239 R_BA:
3240 Absolute branch. We don't want to mess with the lower
3241 two bits of the instruction.
3242
3243 R_CAI:
3244 The PowerPC ABI defines this as an absolute call which
3245 may be modified to become a relative call. The PowerOpen
3246 ABI does not define this relocation type.
3247
3248 R_RBA:
3249 Absolute branch which may be modified to become a
3250 relative branch.
3251
3252 R_RBAC:
3253 The PowerPC ABI defines this as an absolute branch to a
3254 fixed address which may be modified to an absolute branch
3255 to a symbol. The PowerOpen ABI does not define this
3256 relocation type.
3257
3258 R_RBRC:
3259 The PowerPC ABI defines this as an absolute branch to a
3260 fixed address which may be modified to a relative branch.
3261 The PowerOpen ABI does not define this relocation type.
3262
3263 R_BR:
3264 Relative branch. We don't want to mess with the lower
3265 two bits of the instruction.
3266
3267 R_CREL:
3268 The PowerPC ABI defines this as a relative call which may
3269 be modified to become an absolute call. The PowerOpen
3270 ABI does not define this relocation type.
3271
3272 R_RBR:
3273 A relative branch which may be modified to become an
3274 absolute branch.
3275
3276 R_RL:
3277 The PowerPC AIX ABI describes this as a load which may be
3278 changed to a load address. The PowerOpen ABI says this
3279 is the same as case R_POS.
3280
3281 R_RLA:
3282 The PowerPC AIX ABI describes this as a load address
3283 which may be changed to a load. The PowerOpen ABI says
3284 this is the same as R_POS.
3285 */
3286
3287 bfd_boolean
3288 xcoff_ppc_relocate_section (bfd *output_bfd,
3289 struct bfd_link_info *info,
3290 bfd *input_bfd,
3291 asection *input_section,
3292 bfd_byte *contents,
3293 struct internal_reloc *relocs,
3294 struct internal_syment *syms,
3295 asection **sections)
3296 {
3297 struct internal_reloc *rel;
3298 struct internal_reloc *relend;
3299
3300 rel = relocs;
3301 relend = rel + input_section->reloc_count;
3302 for (; rel < relend; rel++)
3303 {
3304 long symndx;
3305 struct xcoff_link_hash_entry *h;
3306 struct internal_syment *sym;
3307 bfd_vma addend;
3308 bfd_vma val;
3309 struct reloc_howto_struct howto;
3310 bfd_vma relocation;
3311 bfd_vma value_to_relocate;
3312 bfd_vma address;
3313 bfd_byte *location;
3314
3315 /* Relocation type R_REF is a special relocation type which is
3316 merely used to prevent garbage collection from occurring for
3317 the csect including the symbol which it references. */
3318 if (rel->r_type == R_REF)
3319 continue;
3320
3321 /* howto */
3322 howto.type = rel->r_type;
3323 howto.rightshift = 0;
3324 howto.bitsize = (rel->r_size & 0x1f) + 1;
3325 howto.size = howto.bitsize > 16 ? 2 : 1;
3326 howto.pc_relative = FALSE;
3327 howto.bitpos = 0;
3328 howto.complain_on_overflow = (rel->r_size & 0x80
3329 ? complain_overflow_signed
3330 : complain_overflow_bitfield);
3331 howto.special_function = NULL;
3332 howto.name = "internal";
3333 howto.partial_inplace = TRUE;
3334 howto.src_mask = howto.dst_mask = N_ONES (howto.bitsize);
3335 howto.pcrel_offset = FALSE;
3336
3337 /* symbol */
3338 val = 0;
3339 addend = 0;
3340 h = NULL;
3341 sym = NULL;
3342 symndx = rel->r_symndx;
3343
3344 if (-1 != symndx)
3345 {
3346 asection *sec;
3347
3348 h = obj_xcoff_sym_hashes (input_bfd)[symndx];
3349 sym = syms + symndx;
3350 addend = - sym->n_value;
3351
3352 if (NULL == h)
3353 {
3354 sec = sections[symndx];
3355 /* Hack to make sure we use the right TOC anchor value
3356 if this reloc is against the TOC anchor. */
3357 if (sec->name[3] == '0'
3358 && strcmp (sec->name, ".tc0") == 0)
3359 val = xcoff_data (output_bfd)->toc;
3360 else
3361 val = (sec->output_section->vma
3362 + sec->output_offset
3363 + sym->n_value
3364 - sec->vma);
3365 }
3366 else
3367 {
3368 if (info->unresolved_syms_in_objects != RM_IGNORE
3369 && (h->flags & XCOFF_WAS_UNDEFINED) != 0)
3370 {
3371 if (! ((*info->callbacks->undefined_symbol)
3372 (info, h->root.root.string,
3373 input_bfd, input_section,
3374 rel->r_vaddr - input_section->vma,
3375 (info->unresolved_syms_in_objects
3376 == RM_GENERATE_ERROR))))
3377 return FALSE;
3378 }
3379 if (h->root.type == bfd_link_hash_defined
3380 || h->root.type == bfd_link_hash_defweak)
3381 {
3382 sec = h->root.u.def.section;
3383 val = (h->root.u.def.value
3384 + sec->output_section->vma
3385 + sec->output_offset);
3386 }
3387 else if (h->root.type == bfd_link_hash_common)
3388 {
3389 sec = h->root.u.c.p->section;
3390 val = (sec->output_section->vma
3391 + sec->output_offset);
3392
3393 }
3394 else
3395 {
3396 BFD_ASSERT (info->relocatable
3397 || (info->static_link
3398 && (h->flags & XCOFF_WAS_UNDEFINED) != 0)
3399 || (h->flags & XCOFF_DEF_DYNAMIC) != 0
3400 || (h->flags & XCOFF_IMPORT) != 0);
3401 }
3402 }
3403 }
3404
3405 if (rel->r_type >= XCOFF_MAX_CALCULATE_RELOCATION
3406 || !((*xcoff_calculate_relocation[rel->r_type])
3407 (input_bfd, input_section, output_bfd, rel, sym, &howto, val,
3408 addend, &relocation, contents)))
3409 return FALSE;
3410
3411 /* address */
3412 address = rel->r_vaddr - input_section->vma;
3413 location = contents + address;
3414
3415 if (address > input_section->size)
3416 abort ();
3417
3418 /* Get the value we are going to relocate. */
3419 if (1 == howto.size)
3420 value_to_relocate = bfd_get_16 (input_bfd, location);
3421 else
3422 value_to_relocate = bfd_get_32 (input_bfd, location);
3423
3424 /* overflow.
3425
3426 FIXME: We may drop bits during the addition
3427 which we don't check for. We must either check at every single
3428 operation, which would be tedious, or we must do the computations
3429 in a type larger than bfd_vma, which would be inefficient. */
3430
3431 if ((unsigned int) howto.complain_on_overflow
3432 >= XCOFF_MAX_COMPLAIN_OVERFLOW)
3433 abort ();
3434
3435 if (((*xcoff_complain_overflow[howto.complain_on_overflow])
3436 (input_bfd, value_to_relocate, relocation, &howto)))
3437 {
3438 const char *name;
3439 char buf[SYMNMLEN + 1];
3440 char reloc_type_name[10];
3441
3442 if (symndx == -1)
3443 {
3444 name = "*ABS*";
3445 }
3446 else if (h != NULL)
3447 {
3448 name = NULL;
3449 }
3450 else
3451 {
3452 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
3453 if (name == NULL)
3454 name = "UNKNOWN";
3455 }
3456 sprintf (reloc_type_name, "0x%02x", rel->r_type);
3457
3458 if (! ((*info->callbacks->reloc_overflow)
3459 (info, (h ? &h->root : NULL), name, reloc_type_name,
3460 (bfd_vma) 0, input_bfd, input_section,
3461 rel->r_vaddr - input_section->vma)))
3462 return FALSE;
3463 }
3464
3465 /* Add RELOCATION to the right bits of VALUE_TO_RELOCATE. */
3466 value_to_relocate = ((value_to_relocate & ~howto.dst_mask)
3467 | (((value_to_relocate & howto.src_mask)
3468 + relocation) & howto.dst_mask));
3469
3470 /* Put the value back in the object file. */
3471 if (1 == howto.size)
3472 bfd_put_16 (input_bfd, value_to_relocate, location);
3473 else
3474 bfd_put_32 (input_bfd, value_to_relocate, location);
3475 }
3476
3477 return TRUE;
3478 }
3479
3480 static bfd_boolean
3481 _bfd_xcoff_put_ldsymbol_name (bfd *abfd ATTRIBUTE_UNUSED,
3482 struct xcoff_loader_info *ldinfo,
3483 struct internal_ldsym *ldsym,
3484 const char *name)
3485 {
3486 size_t len;
3487 len = strlen (name);
3488
3489 if (len <= SYMNMLEN)
3490 strncpy (ldsym->_l._l_name, name, SYMNMLEN);
3491 else
3492 {
3493 if (ldinfo->string_size + len + 3 > ldinfo->string_alc)
3494 {
3495 bfd_size_type newalc;
3496 char *newstrings;
3497
3498 newalc = ldinfo->string_alc * 2;
3499 if (newalc == 0)
3500 newalc = 32;
3501 while (ldinfo->string_size + len + 3 > newalc)
3502 newalc *= 2;
3503
3504 newstrings = bfd_realloc (ldinfo->strings, newalc);
3505 if (newstrings == NULL)
3506 {
3507 ldinfo->failed = TRUE;
3508 return FALSE;
3509 }
3510 ldinfo->string_alc = newalc;
3511 ldinfo->strings = newstrings;
3512 }
3513
3514 bfd_put_16 (ldinfo->output_bfd, (bfd_vma) (len + 1),
3515 ldinfo->strings + ldinfo->string_size);
3516 strcpy (ldinfo->strings + ldinfo->string_size + 2, name);
3517 ldsym->_l._l_l._l_zeroes = 0;
3518 ldsym->_l._l_l._l_offset = ldinfo->string_size + 2;
3519 ldinfo->string_size += len + 3;
3520 }
3521
3522 return TRUE;
3523 }
3524
3525 static bfd_boolean
3526 _bfd_xcoff_put_symbol_name (bfd *abfd, struct bfd_strtab_hash *strtab,
3527 struct internal_syment *sym,
3528 const char *name)
3529 {
3530 if (strlen (name) <= SYMNMLEN)
3531 {
3532 strncpy (sym->_n._n_name, name, SYMNMLEN);
3533 }
3534 else
3535 {
3536 bfd_boolean hash;
3537 bfd_size_type indx;
3538
3539 hash = TRUE;
3540 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
3541 hash = FALSE;
3542 indx = _bfd_stringtab_add (strtab, name, hash, FALSE);
3543 if (indx == (bfd_size_type) -1)
3544 return FALSE;
3545 sym->_n._n_n._n_zeroes = 0;
3546 sym->_n._n_n._n_offset = STRING_SIZE_SIZE + indx;
3547 }
3548 return TRUE;
3549 }
3550
3551 static asection *
3552 xcoff_create_csect_from_smclas (bfd *abfd,
3553 union internal_auxent *aux,
3554 const char *symbol_name)
3555 {
3556 asection *return_value = NULL;
3557
3558 /* .sv64 = x_smclas == 17
3559 This is an invalid csect for 32 bit apps. */
3560 static const char * const names[] =
3561 {
3562 ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo", /* 0 - 7 */
3563 ".sv", ".bs", ".ds", ".uc", ".ti", ".tb", NULL, ".tc0", /* 8 - 15 */
3564 ".td", NULL, ".sv3264", NULL, ".tl", ".ul", ".te"
3565 };
3566
3567 if ((aux->x_csect.x_smclas < ARRAY_SIZE (names))
3568 && (NULL != names[aux->x_csect.x_smclas]))
3569 {
3570 return_value = bfd_make_section_anyway
3571 (abfd, names[aux->x_csect.x_smclas]);
3572 }
3573 else
3574 {
3575 (*_bfd_error_handler)
3576 (_("%B: symbol `%s' has unrecognized smclas %d"),
3577 abfd, symbol_name, aux->x_csect.x_smclas);
3578 bfd_set_error (bfd_error_bad_value);
3579 }
3580
3581 return return_value;
3582 }
3583
3584 static bfd_boolean
3585 xcoff_is_lineno_count_overflow (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma value)
3586 {
3587 if (0xffff <= value)
3588 return TRUE;
3589
3590 return FALSE;
3591 }
3592
3593 static bfd_boolean
3594 xcoff_is_reloc_count_overflow (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma value)
3595 {
3596 if (0xffff <= value)
3597 return TRUE;
3598
3599 return FALSE;
3600 }
3601
3602 static bfd_vma
3603 xcoff_loader_symbol_offset (bfd *abfd,
3604 struct internal_ldhdr *ldhdr ATTRIBUTE_UNUSED)
3605 {
3606 return bfd_xcoff_ldhdrsz (abfd);
3607 }
3608
3609 static bfd_vma
3610 xcoff_loader_reloc_offset (bfd *abfd, struct internal_ldhdr *ldhdr)
3611 {
3612 return bfd_xcoff_ldhdrsz (abfd) + ldhdr->l_nsyms * bfd_xcoff_ldsymsz (abfd);
3613 }
3614
3615 static bfd_boolean
3616 xcoff_generate_rtinit (bfd *abfd, const char *init, const char *fini,
3617 bfd_boolean rtld)
3618 {
3619 bfd_byte filehdr_ext[FILHSZ];
3620 bfd_byte scnhdr_ext[SCNHSZ];
3621 bfd_byte syment_ext[SYMESZ * 10];
3622 bfd_byte reloc_ext[RELSZ * 3];
3623 bfd_byte *data_buffer;
3624 bfd_size_type data_buffer_size;
3625 bfd_byte *string_table = NULL, *st_tmp = NULL;
3626 bfd_size_type string_table_size;
3627 bfd_vma val;
3628 size_t initsz, finisz;
3629 struct internal_filehdr filehdr;
3630 struct internal_scnhdr scnhdr;
3631 struct internal_syment syment;
3632 union internal_auxent auxent;
3633 struct internal_reloc reloc;
3634
3635 char *data_name = ".data";
3636 char *rtinit_name = "__rtinit";
3637 char *rtld_name = "__rtld";
3638
3639 if (! bfd_xcoff_rtinit_size (abfd))
3640 return FALSE;
3641
3642 initsz = (init == NULL ? 0 : 1 + strlen (init));
3643 finisz = (fini == NULL ? 0 : 1 + strlen (fini));
3644
3645 /* file header */
3646 memset (filehdr_ext, 0, FILHSZ);
3647 memset (&filehdr, 0, sizeof (struct internal_filehdr));
3648 filehdr.f_magic = bfd_xcoff_magic_number (abfd);
3649 filehdr.f_nscns = 1;
3650 filehdr.f_timdat = 0;
3651 filehdr.f_nsyms = 0; /* at least 6, no more than 10 */
3652 filehdr.f_symptr = 0; /* set below */
3653 filehdr.f_opthdr = 0;
3654 filehdr.f_flags = 0;
3655
3656 /* section header */
3657 memset (scnhdr_ext, 0, SCNHSZ);
3658 memset (&scnhdr, 0, sizeof (struct internal_scnhdr));
3659 memcpy (scnhdr.s_name, data_name, strlen (data_name));
3660 scnhdr.s_paddr = 0;
3661 scnhdr.s_vaddr = 0;
3662 scnhdr.s_size = 0; /* set below */
3663 scnhdr.s_scnptr = FILHSZ + SCNHSZ;
3664 scnhdr.s_relptr = 0; /* set below */
3665 scnhdr.s_lnnoptr = 0;
3666 scnhdr.s_nreloc = 0; /* either 1 or 2 */
3667 scnhdr.s_nlnno = 0;
3668 scnhdr.s_flags = STYP_DATA;
3669
3670 /* .data
3671 0x0000 0x00000000 : rtl
3672 0x0004 0x00000010 : offset to init, or 0
3673 0x0008 0x00000028 : offset to fini, or 0
3674 0x000C 0x0000000C : size of descriptor
3675 0x0010 0x00000000 : init, needs a reloc
3676 0x0014 0x00000040 : offset to init name
3677 0x0018 0x00000000 : flags, padded to a word
3678 0x001C 0x00000000 : empty init
3679 0x0020 0x00000000 :
3680 0x0024 0x00000000 :
3681 0x0028 0x00000000 : fini, needs a reloc
3682 0x002C 0x00000??? : offset to fini name
3683 0x0030 0x00000000 : flags, padded to a word
3684 0x0034 0x00000000 : empty fini
3685 0x0038 0x00000000 :
3686 0x003C 0x00000000 :
3687 0x0040 init name
3688 0x0040 + initsz fini name */
3689
3690 data_buffer_size = 0x0040 + initsz + finisz;
3691 data_buffer_size = (data_buffer_size + 7) &~ (bfd_size_type) 7;
3692 data_buffer = NULL;
3693 data_buffer = (bfd_byte *) bfd_zmalloc (data_buffer_size);
3694 if (data_buffer == NULL)
3695 return FALSE;
3696
3697 if (initsz)
3698 {
3699 val = 0x10;
3700 bfd_h_put_32 (abfd, val, &data_buffer[0x04]);
3701 val = 0x40;
3702 bfd_h_put_32 (abfd, val, &data_buffer[0x14]);
3703 memcpy (&data_buffer[val], init, initsz);
3704 }
3705
3706 if (finisz)
3707 {
3708 val = 0x28;
3709 bfd_h_put_32 (abfd, val, &data_buffer[0x08]);
3710 val = 0x40 + initsz;
3711 bfd_h_put_32 (abfd, val, &data_buffer[0x2C]);
3712 memcpy (&data_buffer[val], fini, finisz);
3713 }
3714
3715 val = 0x0C;
3716 bfd_h_put_32 (abfd, val, &data_buffer[0x0C]);
3717
3718 scnhdr.s_size = data_buffer_size;
3719
3720 /* string table */
3721 string_table_size = 0;
3722 if (initsz > 9)
3723 string_table_size += initsz;
3724 if (finisz > 9)
3725 string_table_size += finisz;
3726 if (string_table_size)
3727 {
3728 string_table_size += 4;
3729 string_table = (bfd_byte *) bfd_zmalloc (string_table_size);
3730 if (string_table == NULL)
3731 return FALSE;
3732
3733 val = string_table_size;
3734 bfd_h_put_32 (abfd, val, &string_table[0]);
3735 st_tmp = string_table + 4;
3736 }
3737
3738 /* symbols
3739 0. .data csect
3740 2. __rtinit
3741 4. init function
3742 6. fini function
3743 8. __rtld */
3744 memset (syment_ext, 0, 10 * SYMESZ);
3745 memset (reloc_ext, 0, 3 * RELSZ);
3746
3747 /* .data csect */
3748 memset (&syment, 0, sizeof (struct internal_syment));
3749 memset (&auxent, 0, sizeof (union internal_auxent));
3750 memcpy (syment._n._n_name, data_name, strlen (data_name));
3751 syment.n_scnum = 1;
3752 syment.n_sclass = C_HIDEXT;
3753 syment.n_numaux = 1;
3754 auxent.x_csect.x_scnlen.l = data_buffer_size;
3755 auxent.x_csect.x_smtyp = 3 << 3 | XTY_SD;
3756 auxent.x_csect.x_smclas = XMC_RW;
3757 bfd_coff_swap_sym_out (abfd, &syment,
3758 &syment_ext[filehdr.f_nsyms * SYMESZ]);
3759 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
3760 syment.n_numaux,
3761 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
3762 filehdr.f_nsyms += 2;
3763
3764 /* __rtinit */
3765 memset (&syment, 0, sizeof (struct internal_syment));
3766 memset (&auxent, 0, sizeof (union internal_auxent));
3767 memcpy (syment._n._n_name, rtinit_name, strlen (rtinit_name));
3768 syment.n_scnum = 1;
3769 syment.n_sclass = C_EXT;
3770 syment.n_numaux = 1;
3771 auxent.x_csect.x_smtyp = XTY_LD;
3772 auxent.x_csect.x_smclas = XMC_RW;
3773 bfd_coff_swap_sym_out (abfd, &syment,
3774 &syment_ext[filehdr.f_nsyms * SYMESZ]);
3775 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
3776 syment.n_numaux,
3777 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
3778 filehdr.f_nsyms += 2;
3779
3780 /* init */
3781 if (initsz)
3782 {
3783 memset (&syment, 0, sizeof (struct internal_syment));
3784 memset (&auxent, 0, sizeof (union internal_auxent));
3785
3786 if (initsz > 9)
3787 {
3788 syment._n._n_n._n_offset = st_tmp - string_table;
3789 memcpy (st_tmp, init, initsz);
3790 st_tmp += initsz;
3791 }
3792 else
3793 memcpy (syment._n._n_name, init, initsz - 1);
3794
3795 syment.n_sclass = C_EXT;
3796 syment.n_numaux = 1;
3797 bfd_coff_swap_sym_out (abfd, &syment,
3798 &syment_ext[filehdr.f_nsyms * SYMESZ]);
3799 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
3800 syment.n_numaux,
3801 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
3802
3803 /* reloc */
3804 memset (&reloc, 0, sizeof (struct internal_reloc));
3805 reloc.r_vaddr = 0x0010;
3806 reloc.r_symndx = filehdr.f_nsyms;
3807 reloc.r_type = R_POS;
3808 reloc.r_size = 31;
3809 bfd_coff_swap_reloc_out (abfd, &reloc, &reloc_ext[0]);
3810
3811 filehdr.f_nsyms += 2;
3812 scnhdr.s_nreloc += 1;
3813 }
3814
3815 /* fini */
3816 if (finisz)
3817 {
3818 memset (&syment, 0, sizeof (struct internal_syment));
3819 memset (&auxent, 0, sizeof (union internal_auxent));
3820
3821 if (finisz > 9)
3822 {
3823 syment._n._n_n._n_offset = st_tmp - string_table;
3824 memcpy (st_tmp, fini, finisz);
3825 st_tmp += finisz;
3826 }
3827 else
3828 memcpy (syment._n._n_name, fini, finisz - 1);
3829
3830 syment.n_sclass = C_EXT;
3831 syment.n_numaux = 1;
3832 bfd_coff_swap_sym_out (abfd, &syment,
3833 &syment_ext[filehdr.f_nsyms * SYMESZ]);
3834 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
3835 syment.n_numaux,
3836 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
3837
3838 /* reloc */
3839 memset (&reloc, 0, sizeof (struct internal_reloc));
3840 reloc.r_vaddr = 0x0028;
3841 reloc.r_symndx = filehdr.f_nsyms;
3842 reloc.r_type = R_POS;
3843 reloc.r_size = 31;
3844 bfd_coff_swap_reloc_out (abfd, &reloc,
3845 &reloc_ext[scnhdr.s_nreloc * RELSZ]);
3846
3847 filehdr.f_nsyms += 2;
3848 scnhdr.s_nreloc += 1;
3849 }
3850
3851 if (rtld)
3852 {
3853 memset (&syment, 0, sizeof (struct internal_syment));
3854 memset (&auxent, 0, sizeof (union internal_auxent));
3855 memcpy (syment._n._n_name, rtld_name, strlen (rtld_name));
3856 syment.n_sclass = C_EXT;
3857 syment.n_numaux = 1;
3858 bfd_coff_swap_sym_out (abfd, &syment,
3859 &syment_ext[filehdr.f_nsyms * SYMESZ]);
3860 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
3861 syment.n_numaux,
3862 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
3863
3864 /* reloc */
3865 memset (&reloc, 0, sizeof (struct internal_reloc));
3866 reloc.r_vaddr = 0x0000;
3867 reloc.r_symndx = filehdr.f_nsyms;
3868 reloc.r_type = R_POS;
3869 reloc.r_size = 31;
3870 bfd_coff_swap_reloc_out (abfd, &reloc,
3871 &reloc_ext[scnhdr.s_nreloc * RELSZ]);
3872
3873 filehdr.f_nsyms += 2;
3874 scnhdr.s_nreloc += 1;
3875 }
3876
3877 scnhdr.s_relptr = scnhdr.s_scnptr + data_buffer_size;
3878 filehdr.f_symptr = scnhdr.s_relptr + scnhdr.s_nreloc * RELSZ;
3879
3880 bfd_coff_swap_filehdr_out (abfd, &filehdr, filehdr_ext);
3881 bfd_bwrite (filehdr_ext, FILHSZ, abfd);
3882 bfd_coff_swap_scnhdr_out (abfd, &scnhdr, scnhdr_ext);
3883 bfd_bwrite (scnhdr_ext, SCNHSZ, abfd);
3884 bfd_bwrite (data_buffer, data_buffer_size, abfd);
3885 bfd_bwrite (reloc_ext, scnhdr.s_nreloc * RELSZ, abfd);
3886 bfd_bwrite (syment_ext, filehdr.f_nsyms * SYMESZ, abfd);
3887 bfd_bwrite (string_table, string_table_size, abfd);
3888
3889 free (data_buffer);
3890 data_buffer = NULL;
3891
3892 return TRUE;
3893 }
3894
3895
3896 static reloc_howto_type xcoff_dynamic_reloc =
3897 HOWTO (0, /* type */
3898 0, /* rightshift */
3899 2, /* size (0 = byte, 1 = short, 2 = long) */
3900 32, /* bitsize */
3901 FALSE, /* pc_relative */
3902 0, /* bitpos */
3903 complain_overflow_bitfield, /* complain_on_overflow */
3904 0, /* special_function */
3905 "R_POS", /* name */
3906 TRUE, /* partial_inplace */
3907 0xffffffff, /* src_mask */
3908 0xffffffff, /* dst_mask */
3909 FALSE); /* pcrel_offset */
3910
3911 /* glink
3912
3913 The first word of global linkage code must be modified by filling in
3914 the correct TOC offset. */
3915
3916 static unsigned long xcoff_glink_code[9] =
3917 {
3918 0x81820000, /* lwz r12,0(r2) */
3919 0x90410014, /* stw r2,20(r1) */
3920 0x800c0000, /* lwz r0,0(r12) */
3921 0x804c0004, /* lwz r2,4(r12) */
3922 0x7c0903a6, /* mtctr r0 */
3923 0x4e800420, /* bctr */
3924 0x00000000, /* start of traceback table */
3925 0x000c8000, /* traceback table */
3926 0x00000000, /* traceback table */
3927 };
3928
3929 /* Table to convert DWARF flags to section names. */
3930
3931 const struct xcoff_dwsect_name xcoff_dwsect_names[] = {
3932 { SSUBTYP_DWINFO, ".dwinfo", TRUE },
3933 { SSUBTYP_DWLINE, ".dwline", TRUE },
3934 { SSUBTYP_DWPBNMS, ".dwpbnms", TRUE },
3935 { SSUBTYP_DWPBTYP, ".dwpbtyp", TRUE },
3936 { SSUBTYP_DWARNGE, ".dwarnge", TRUE },
3937 { SSUBTYP_DWABREV, ".dwabrev", FALSE },
3938 { SSUBTYP_DWSTR, ".dwstr", TRUE },
3939 { SSUBTYP_DWRNGES, ".dwrnges", TRUE }
3940 };
3941
3942 static const struct xcoff_backend_data_rec bfd_xcoff_backend_data =
3943 {
3944 { /* COFF backend, defined in libcoff.h. */
3945 _bfd_xcoff_swap_aux_in,
3946 _bfd_xcoff_swap_sym_in,
3947 coff_swap_lineno_in,
3948 _bfd_xcoff_swap_aux_out,
3949 _bfd_xcoff_swap_sym_out,
3950 coff_swap_lineno_out,
3951 xcoff_swap_reloc_out,
3952 coff_swap_filehdr_out,
3953 coff_swap_aouthdr_out,
3954 coff_swap_scnhdr_out,
3955 FILHSZ,
3956 AOUTSZ,
3957 SCNHSZ,
3958 SYMESZ,
3959 AUXESZ,
3960 RELSZ,
3961 LINESZ,
3962 FILNMLEN,
3963 TRUE, /* _bfd_coff_long_filenames */
3964 XCOFF_NO_LONG_SECTION_NAMES, /* _bfd_coff_long_section_names */
3965 3, /* _bfd_coff_default_section_alignment_power */
3966 FALSE, /* _bfd_coff_force_symnames_in_strings */
3967 2, /* _bfd_coff_debug_string_prefix_length */
3968 coff_swap_filehdr_in,
3969 coff_swap_aouthdr_in,
3970 coff_swap_scnhdr_in,
3971 xcoff_swap_reloc_in,
3972 coff_bad_format_hook,
3973 coff_set_arch_mach_hook,
3974 coff_mkobject_hook,
3975 styp_to_sec_flags,
3976 coff_set_alignment_hook,
3977 coff_slurp_symbol_table,
3978 symname_in_debug_hook,
3979 coff_pointerize_aux_hook,
3980 coff_print_aux,
3981 dummy_reloc16_extra_cases,
3982 dummy_reloc16_estimate,
3983 NULL, /* bfd_coff_sym_is_global */
3984 coff_compute_section_file_positions,
3985 NULL, /* _bfd_coff_start_final_link */
3986 xcoff_ppc_relocate_section,
3987 coff_rtype_to_howto,
3988 NULL, /* _bfd_coff_adjust_symndx */
3989 _bfd_generic_link_add_one_symbol,
3990 coff_link_output_has_begun,
3991 coff_final_link_postscript,
3992 NULL /* print_pdata. */
3993 },
3994
3995 0x01DF, /* magic number */
3996 bfd_arch_rs6000,
3997 bfd_mach_rs6k,
3998
3999 /* Function pointers to xcoff specific swap routines. */
4000 xcoff_swap_ldhdr_in,
4001 xcoff_swap_ldhdr_out,
4002 xcoff_swap_ldsym_in,
4003 xcoff_swap_ldsym_out,
4004 xcoff_swap_ldrel_in,
4005 xcoff_swap_ldrel_out,
4006
4007 /* Sizes. */
4008 LDHDRSZ,
4009 LDSYMSZ,
4010 LDRELSZ,
4011 12, /* _xcoff_function_descriptor_size */
4012 SMALL_AOUTSZ,
4013
4014 /* Versions. */
4015 1, /* _xcoff_ldhdr_version */
4016
4017 _bfd_xcoff_put_symbol_name,
4018 _bfd_xcoff_put_ldsymbol_name,
4019 &xcoff_dynamic_reloc,
4020 xcoff_create_csect_from_smclas,
4021
4022 /* Lineno and reloc count overflow. */
4023 xcoff_is_lineno_count_overflow,
4024 xcoff_is_reloc_count_overflow,
4025
4026 xcoff_loader_symbol_offset,
4027 xcoff_loader_reloc_offset,
4028
4029 /* glink. */
4030 &xcoff_glink_code[0],
4031 36, /* _xcoff_glink_size */
4032
4033 /* rtinit */
4034 64, /* _xcoff_rtinit_size */
4035 xcoff_generate_rtinit,
4036 };
4037
4038 /* The transfer vector that leads the outside world to all of the above. */
4039 const bfd_target rs6000coff_vec =
4040 {
4041 "aixcoff-rs6000",
4042 bfd_target_xcoff_flavour,
4043 BFD_ENDIAN_BIG, /* data byte order is big */
4044 BFD_ENDIAN_BIG, /* header byte order is big */
4045
4046 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
4047 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
4048
4049 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
4050 0, /* leading char */
4051 '/', /* ar_pad_char */
4052 15, /* ar_max_namelen */
4053 0, /* match priority. */
4054
4055 /* data */
4056 bfd_getb64,
4057 bfd_getb_signed_64,
4058 bfd_putb64,
4059 bfd_getb32,
4060 bfd_getb_signed_32,
4061 bfd_putb32,
4062 bfd_getb16,
4063 bfd_getb_signed_16,
4064 bfd_putb16,
4065
4066 /* hdrs */
4067 bfd_getb64,
4068 bfd_getb_signed_64,
4069 bfd_putb64,
4070 bfd_getb32,
4071 bfd_getb_signed_32,
4072 bfd_putb32,
4073 bfd_getb16,
4074 bfd_getb_signed_16,
4075 bfd_putb16,
4076
4077 { /* bfd_check_format */
4078 _bfd_dummy_target,
4079 coff_object_p,
4080 _bfd_xcoff_archive_p,
4081 CORE_FILE_P
4082 },
4083
4084 { /* bfd_set_format */
4085 bfd_false,
4086 coff_mkobject,
4087 _bfd_generic_mkarchive,
4088 bfd_false
4089 },
4090
4091 {/* bfd_write_contents */
4092 bfd_false,
4093 coff_write_object_contents,
4094 _bfd_xcoff_write_archive_contents,
4095 bfd_false
4096 },
4097
4098 /* Generic */
4099 _bfd_archive_close_and_cleanup,
4100 bfd_true,
4101 coff_new_section_hook,
4102 _bfd_generic_get_section_contents,
4103 _bfd_generic_get_section_contents_in_window,
4104
4105 /* Copy */
4106 _bfd_xcoff_copy_private_bfd_data,
4107 _bfd_generic_bfd_merge_private_bfd_data,
4108 _bfd_generic_init_private_section_data,
4109 _bfd_generic_bfd_copy_private_section_data,
4110 _bfd_generic_bfd_copy_private_symbol_data,
4111 _bfd_generic_bfd_copy_private_header_data,
4112 _bfd_generic_bfd_set_private_flags,
4113 _bfd_generic_bfd_print_private_bfd_data,
4114
4115 /* Core */
4116 BFD_JUMP_TABLE_CORE (coff),
4117
4118 /* Archive */
4119 _bfd_xcoff_slurp_armap,
4120 _bfd_noarchive_slurp_extended_name_table,
4121 _bfd_noarchive_construct_extended_name_table,
4122 bfd_dont_truncate_arname,
4123 _bfd_xcoff_write_armap,
4124 _bfd_xcoff_read_ar_hdr,
4125 _bfd_generic_write_ar_hdr,
4126 _bfd_xcoff_openr_next_archived_file,
4127 _bfd_generic_get_elt_at_index,
4128 _bfd_xcoff_stat_arch_elt,
4129 bfd_true,
4130
4131 /* Symbols */
4132 coff_get_symtab_upper_bound,
4133 coff_canonicalize_symtab,
4134 coff_make_empty_symbol,
4135 coff_print_symbol,
4136 coff_get_symbol_info,
4137 _bfd_xcoff_is_local_label_name,
4138 coff_bfd_is_target_special_symbol,
4139 coff_get_lineno,
4140 xcoff_find_nearest_line,
4141 xcoff_find_nearest_line_discriminator,
4142 _bfd_generic_find_line,
4143 coff_find_inliner_info,
4144 coff_bfd_make_debug_symbol,
4145 _bfd_generic_read_minisymbols,
4146 _bfd_generic_minisymbol_to_symbol,
4147
4148 /* Reloc */
4149 coff_get_reloc_upper_bound,
4150 coff_canonicalize_reloc,
4151 _bfd_xcoff_reloc_type_lookup,
4152 _bfd_xcoff_reloc_name_lookup,
4153
4154 /* Write */
4155 coff_set_arch_mach,
4156 coff_set_section_contents,
4157
4158 /* Link */
4159 _bfd_xcoff_sizeof_headers,
4160 bfd_generic_get_relocated_section_contents,
4161 bfd_generic_relax_section,
4162 _bfd_xcoff_bfd_link_hash_table_create,
4163 _bfd_generic_link_hash_table_free,
4164 _bfd_xcoff_bfd_link_add_symbols,
4165 _bfd_generic_link_just_syms,
4166 _bfd_generic_copy_link_hash_symbol_type,
4167 _bfd_xcoff_bfd_final_link,
4168 _bfd_generic_link_split_section,
4169 bfd_generic_gc_sections,
4170 bfd_generic_lookup_section_flags,
4171 bfd_generic_merge_sections,
4172 bfd_generic_is_group_section,
4173 bfd_generic_discard_group,
4174 _bfd_generic_section_already_linked,
4175 _bfd_xcoff_define_common_symbol,
4176
4177 /* Dynamic */
4178 _bfd_xcoff_get_dynamic_symtab_upper_bound,
4179 _bfd_xcoff_canonicalize_dynamic_symtab,
4180 _bfd_nodynamic_get_synthetic_symtab,
4181 _bfd_xcoff_get_dynamic_reloc_upper_bound,
4182 _bfd_xcoff_canonicalize_dynamic_reloc,
4183
4184 /* Opposite endian version, none exists */
4185 NULL,
4186
4187 & bfd_xcoff_backend_data,
4188 };
4189
4190 /* xcoff-powermac target
4191 Old target.
4192 Only difference between this target and the rs6000 target is the
4193 the default architecture and machine type used in coffcode.h
4194
4195 PowerPC Macs use the same magic numbers as RS/6000
4196 (because that's how they were bootstrapped originally),
4197 but they are always PowerPC architecture. */
4198 static const struct xcoff_backend_data_rec bfd_pmac_xcoff_backend_data =
4199 {
4200 { /* COFF backend, defined in libcoff.h. */
4201 _bfd_xcoff_swap_aux_in,
4202 _bfd_xcoff_swap_sym_in,
4203 coff_swap_lineno_in,
4204 _bfd_xcoff_swap_aux_out,
4205 _bfd_xcoff_swap_sym_out,
4206 coff_swap_lineno_out,
4207 xcoff_swap_reloc_out,
4208 coff_swap_filehdr_out,
4209 coff_swap_aouthdr_out,
4210 coff_swap_scnhdr_out,
4211 FILHSZ,
4212 AOUTSZ,
4213 SCNHSZ,
4214 SYMESZ,
4215 AUXESZ,
4216 RELSZ,
4217 LINESZ,
4218 FILNMLEN,
4219 TRUE, /* _bfd_coff_long_filenames */
4220 XCOFF_NO_LONG_SECTION_NAMES, /* _bfd_coff_long_section_names */
4221 3, /* _bfd_coff_default_section_alignment_power */
4222 FALSE, /* _bfd_coff_force_symnames_in_strings */
4223 2, /* _bfd_coff_debug_string_prefix_length */
4224 coff_swap_filehdr_in,
4225 coff_swap_aouthdr_in,
4226 coff_swap_scnhdr_in,
4227 xcoff_swap_reloc_in,
4228 coff_bad_format_hook,
4229 coff_set_arch_mach_hook,
4230 coff_mkobject_hook,
4231 styp_to_sec_flags,
4232 coff_set_alignment_hook,
4233 coff_slurp_symbol_table,
4234 symname_in_debug_hook,
4235 coff_pointerize_aux_hook,
4236 coff_print_aux,
4237 dummy_reloc16_extra_cases,
4238 dummy_reloc16_estimate,
4239 NULL, /* bfd_coff_sym_is_global */
4240 coff_compute_section_file_positions,
4241 NULL, /* _bfd_coff_start_final_link */
4242 xcoff_ppc_relocate_section,
4243 coff_rtype_to_howto,
4244 NULL, /* _bfd_coff_adjust_symndx */
4245 _bfd_generic_link_add_one_symbol,
4246 coff_link_output_has_begun,
4247 coff_final_link_postscript,
4248 NULL /* print_pdata. */
4249 },
4250
4251 0x01DF, /* magic number */
4252 bfd_arch_powerpc,
4253 bfd_mach_ppc,
4254
4255 /* Function pointers to xcoff specific swap routines. */
4256 xcoff_swap_ldhdr_in,
4257 xcoff_swap_ldhdr_out,
4258 xcoff_swap_ldsym_in,
4259 xcoff_swap_ldsym_out,
4260 xcoff_swap_ldrel_in,
4261 xcoff_swap_ldrel_out,
4262
4263 /* Sizes. */
4264 LDHDRSZ,
4265 LDSYMSZ,
4266 LDRELSZ,
4267 12, /* _xcoff_function_descriptor_size */
4268 SMALL_AOUTSZ,
4269
4270 /* Versions. */
4271 1, /* _xcoff_ldhdr_version */
4272
4273 _bfd_xcoff_put_symbol_name,
4274 _bfd_xcoff_put_ldsymbol_name,
4275 &xcoff_dynamic_reloc,
4276 xcoff_create_csect_from_smclas,
4277
4278 /* Lineno and reloc count overflow. */
4279 xcoff_is_lineno_count_overflow,
4280 xcoff_is_reloc_count_overflow,
4281
4282 xcoff_loader_symbol_offset,
4283 xcoff_loader_reloc_offset,
4284
4285 /* glink. */
4286 &xcoff_glink_code[0],
4287 36, /* _xcoff_glink_size */
4288
4289 /* rtinit */
4290 0, /* _xcoff_rtinit_size */
4291 xcoff_generate_rtinit,
4292 };
4293
4294 /* The transfer vector that leads the outside world to all of the above. */
4295 const bfd_target pmac_xcoff_vec =
4296 {
4297 "xcoff-powermac",
4298 bfd_target_xcoff_flavour,
4299 BFD_ENDIAN_BIG, /* data byte order is big */
4300 BFD_ENDIAN_BIG, /* header byte order is big */
4301
4302 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
4303 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
4304
4305 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
4306 0, /* leading char */
4307 '/', /* ar_pad_char */
4308 15, /* ar_max_namelen */
4309 0, /* match priority. */
4310
4311 /* data */
4312 bfd_getb64,
4313 bfd_getb_signed_64,
4314 bfd_putb64,
4315 bfd_getb32,
4316 bfd_getb_signed_32,
4317 bfd_putb32,
4318 bfd_getb16,
4319 bfd_getb_signed_16,
4320 bfd_putb16,
4321
4322 /* hdrs */
4323 bfd_getb64,
4324 bfd_getb_signed_64,
4325 bfd_putb64,
4326 bfd_getb32,
4327 bfd_getb_signed_32,
4328 bfd_putb32,
4329 bfd_getb16,
4330 bfd_getb_signed_16,
4331 bfd_putb16,
4332
4333 { /* bfd_check_format */
4334 _bfd_dummy_target,
4335 coff_object_p,
4336 _bfd_xcoff_archive_p,
4337 CORE_FILE_P
4338 },
4339
4340 { /* bfd_set_format */
4341 bfd_false,
4342 coff_mkobject,
4343 _bfd_generic_mkarchive,
4344 bfd_false
4345 },
4346
4347 {/* bfd_write_contents */
4348 bfd_false,
4349 coff_write_object_contents,
4350 _bfd_xcoff_write_archive_contents,
4351 bfd_false
4352 },
4353
4354 /* Generic */
4355 _bfd_archive_close_and_cleanup,
4356 bfd_true,
4357 coff_new_section_hook,
4358 _bfd_generic_get_section_contents,
4359 _bfd_generic_get_section_contents_in_window,
4360
4361 /* Copy */
4362 _bfd_xcoff_copy_private_bfd_data,
4363 _bfd_generic_bfd_merge_private_bfd_data,
4364 _bfd_generic_init_private_section_data,
4365 _bfd_generic_bfd_copy_private_section_data,
4366 _bfd_generic_bfd_copy_private_symbol_data,
4367 _bfd_generic_bfd_copy_private_header_data,
4368 _bfd_generic_bfd_set_private_flags,
4369 _bfd_generic_bfd_print_private_bfd_data,
4370
4371 /* Core */
4372 BFD_JUMP_TABLE_CORE (coff),
4373
4374 /* Archive */
4375 _bfd_xcoff_slurp_armap,
4376 _bfd_noarchive_slurp_extended_name_table,
4377 _bfd_noarchive_construct_extended_name_table,
4378 bfd_dont_truncate_arname,
4379 _bfd_xcoff_write_armap,
4380 _bfd_xcoff_read_ar_hdr,
4381 _bfd_generic_write_ar_hdr,
4382 _bfd_xcoff_openr_next_archived_file,
4383 _bfd_generic_get_elt_at_index,
4384 _bfd_xcoff_stat_arch_elt,
4385 bfd_true,
4386
4387 /* Symbols */
4388 coff_get_symtab_upper_bound,
4389 coff_canonicalize_symtab,
4390 coff_make_empty_symbol,
4391 coff_print_symbol,
4392 coff_get_symbol_info,
4393 _bfd_xcoff_is_local_label_name,
4394 coff_bfd_is_target_special_symbol,
4395 coff_get_lineno,
4396 xcoff_find_nearest_line,
4397 _bfd_generic_find_nearest_line_discriminator,
4398 _bfd_generic_find_line,
4399 coff_find_inliner_info,
4400 coff_bfd_make_debug_symbol,
4401 _bfd_generic_read_minisymbols,
4402 _bfd_generic_minisymbol_to_symbol,
4403
4404 /* Reloc */
4405 coff_get_reloc_upper_bound,
4406 coff_canonicalize_reloc,
4407 _bfd_xcoff_reloc_type_lookup,
4408 _bfd_xcoff_reloc_name_lookup,
4409
4410 /* Write */
4411 coff_set_arch_mach,
4412 coff_set_section_contents,
4413
4414 /* Link */
4415 _bfd_xcoff_sizeof_headers,
4416 bfd_generic_get_relocated_section_contents,
4417 bfd_generic_relax_section,
4418 _bfd_xcoff_bfd_link_hash_table_create,
4419 _bfd_generic_link_hash_table_free,
4420 _bfd_xcoff_bfd_link_add_symbols,
4421 _bfd_generic_link_just_syms,
4422 _bfd_generic_copy_link_hash_symbol_type,
4423 _bfd_xcoff_bfd_final_link,
4424 _bfd_generic_link_split_section,
4425 bfd_generic_gc_sections,
4426 bfd_generic_lookup_section_flags,
4427 bfd_generic_merge_sections,
4428 bfd_generic_is_group_section,
4429 bfd_generic_discard_group,
4430 _bfd_generic_section_already_linked,
4431 _bfd_xcoff_define_common_symbol,
4432
4433 /* Dynamic */
4434 _bfd_xcoff_get_dynamic_symtab_upper_bound,
4435 _bfd_xcoff_canonicalize_dynamic_symtab,
4436 _bfd_nodynamic_get_synthetic_symtab,
4437 _bfd_xcoff_get_dynamic_reloc_upper_bound,
4438 _bfd_xcoff_canonicalize_dynamic_reloc,
4439
4440 /* Opposite endian version, none exists */
4441 NULL,
4442
4443 & bfd_pmac_xcoff_backend_data,
4444 };
GDB Binutils - Deliverables
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