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bfd/
[deliverable/binutils-gdb.git] / bfd / coff64-rs6000.c
1 /* BFD back-end for IBM RS/6000 "XCOFF64" files.
2 Copyright 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation, Inc.
4 Written Clinton Popetz.
5 Contributed by Cygnus Support.
6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22
23 #include "bfd.h"
24 #include "sysdep.h"
25 #include "bfdlink.h"
26 #include "libbfd.h"
27 #include "coff/internal.h"
28 #include "coff/xcoff.h"
29 #include "coff/rs6k64.h"
30 #include "libcoff.h"
31 #include "libxcoff.h"
32
33 #define GET_FILEHDR_SYMPTR H_GET_64
34 #define PUT_FILEHDR_SYMPTR H_PUT_64
35 #define GET_AOUTHDR_DATA_START H_GET_64
36 #define PUT_AOUTHDR_DATA_START H_PUT_64
37 #define GET_AOUTHDR_TEXT_START H_GET_64
38 #define PUT_AOUTHDR_TEXT_START H_PUT_64
39 #define GET_AOUTHDR_TSIZE H_GET_64
40 #define PUT_AOUTHDR_TSIZE H_PUT_64
41 #define GET_AOUTHDR_DSIZE H_GET_64
42 #define PUT_AOUTHDR_DSIZE H_PUT_64
43 #define GET_AOUTHDR_BSIZE H_GET_64
44 #define PUT_AOUTHDR_BSIZE H_PUT_64
45 #define GET_AOUTHDR_ENTRY H_GET_64
46 #define PUT_AOUTHDR_ENTRY H_PUT_64
47 #define GET_SCNHDR_PADDR H_GET_64
48 #define PUT_SCNHDR_PADDR H_PUT_64
49 #define GET_SCNHDR_VADDR H_GET_64
50 #define PUT_SCNHDR_VADDR H_PUT_64
51 #define GET_SCNHDR_SIZE H_GET_64
52 #define PUT_SCNHDR_SIZE H_PUT_64
53 #define GET_SCNHDR_SCNPTR H_GET_64
54 #define PUT_SCNHDR_SCNPTR H_PUT_64
55 #define GET_SCNHDR_RELPTR H_GET_64
56 #define PUT_SCNHDR_RELPTR H_PUT_64
57 #define GET_SCNHDR_LNNOPTR H_GET_64
58 #define PUT_SCNHDR_LNNOPTR H_PUT_64
59 #define GET_SCNHDR_NRELOC H_GET_32
60 #define MAX_SCNHDR_NRELOC 0xffffffff
61 #define PUT_SCNHDR_NRELOC H_PUT_32
62 #define GET_SCNHDR_NLNNO H_GET_32
63 #define MAX_SCNHDR_NLNNO 0xffffffff
64 #define PUT_SCNHDR_NLNNO H_PUT_32
65 #define GET_RELOC_VADDR H_GET_64
66 #define PUT_RELOC_VADDR H_PUT_64
67
68 #define COFF_FORCE_SYMBOLS_IN_STRINGS
69 #define COFF_DEBUG_STRING_WIDE_PREFIX
70
71
72 #define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \
73 do \
74 { \
75 memset (((SCNHDR *) EXT)->s_pad, 0, \
76 sizeof (((SCNHDR *) EXT)->s_pad)); \
77 } \
78 while (0)
79
80 #define NO_COFF_LINENOS
81
82 #define coff_SWAP_lineno_in _bfd_xcoff64_swap_lineno_in
83 #define coff_SWAP_lineno_out _bfd_xcoff64_swap_lineno_out
84
85 static void _bfd_xcoff64_swap_lineno_in
86 PARAMS ((bfd *, PTR, PTR));
87 static unsigned int _bfd_xcoff64_swap_lineno_out
88 PARAMS ((bfd *, PTR, PTR));
89 static bfd_boolean _bfd_xcoff64_put_symbol_name
90 PARAMS ((bfd *, struct bfd_strtab_hash *, struct internal_syment *,
91 const char *));
92 static bfd_boolean _bfd_xcoff64_put_ldsymbol_name
93 PARAMS ((bfd *, struct xcoff_loader_info *, struct internal_ldsym *,
94 const char *));
95 static void _bfd_xcoff64_swap_sym_in
96 PARAMS ((bfd *, PTR, PTR));
97 static unsigned int _bfd_xcoff64_swap_sym_out
98 PARAMS ((bfd *, PTR, PTR));
99 static void _bfd_xcoff64_swap_aux_in
100 PARAMS ((bfd *, PTR, int, int, int, int, PTR));
101 static unsigned int _bfd_xcoff64_swap_aux_out
102 PARAMS ((bfd *, PTR, int, int, int, int, PTR));
103 static void xcoff64_swap_reloc_in
104 PARAMS ((bfd *, PTR, PTR));
105 static unsigned int xcoff64_swap_reloc_out
106 PARAMS ((bfd *, PTR, PTR));
107 extern bfd_boolean _bfd_xcoff_mkobject
108 PARAMS ((bfd *));
109 extern bfd_boolean _bfd_xcoff_copy_private_bfd_data
110 PARAMS ((bfd *, bfd *));
111 extern bfd_boolean _bfd_xcoff_is_local_label_name
112 PARAMS ((bfd *, const char *));
113 extern void xcoff64_rtype2howto
114 PARAMS ((arelent *, struct internal_reloc *));
115 extern reloc_howto_type * xcoff64_reloc_type_lookup
116 PARAMS ((bfd *, bfd_reloc_code_real_type));
117 extern bfd_boolean _bfd_xcoff_slurp_armap
118 PARAMS ((bfd *));
119 extern PTR _bfd_xcoff_read_ar_hdr
120 PARAMS ((bfd *));
121 extern bfd *_bfd_xcoff_openr_next_archived_file
122 PARAMS ((bfd *, bfd *));
123 extern int _bfd_xcoff_stat_arch_elt
124 PARAMS ((bfd *, struct stat *));
125 extern bfd_boolean _bfd_xcoff_write_armap
126 PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
127 extern bfd_boolean _bfd_xcoff_write_archive_contents
128 PARAMS ((bfd *));
129 extern int _bfd_xcoff_sizeof_headers
130 PARAMS ((bfd *, bfd_boolean));
131 extern void _bfd_xcoff_swap_sym_in
132 PARAMS ((bfd *, PTR, PTR));
133 extern unsigned int _bfd_xcoff_swap_sym_out
134 PARAMS ((bfd *, PTR, PTR));
135 extern void _bfd_xcoff_swap_aux_in
136 PARAMS ((bfd *, PTR, int, int, int, int, PTR));
137 extern unsigned int _bfd_xcoff_swap_aux_out
138 PARAMS ((bfd *, PTR, int, int, int, int, PTR));
139 static void xcoff64_swap_ldhdr_in
140 PARAMS ((bfd *, const PTR, struct internal_ldhdr *));
141 static void xcoff64_swap_ldhdr_out
142 PARAMS ((bfd *, const struct internal_ldhdr *, PTR d));
143 static void xcoff64_swap_ldsym_in
144 PARAMS ((bfd *, const PTR, struct internal_ldsym *));
145 static void xcoff64_swap_ldsym_out
146 PARAMS ((bfd *, const struct internal_ldsym *, PTR d));
147 static void xcoff64_swap_ldrel_in
148 PARAMS ((bfd *, const PTR, struct internal_ldrel *));
149 static void xcoff64_swap_ldrel_out
150 PARAMS ((bfd *, const struct internal_ldrel *, PTR d));
151 static bfd_boolean xcoff64_write_object_contents
152 PARAMS ((bfd *));
153 static bfd_boolean xcoff64_ppc_relocate_section
154 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
155 struct internal_reloc *, struct internal_syment *,
156 asection **));
157 static bfd_boolean xcoff64_slurp_armap
158 PARAMS ((bfd *));
159 static const bfd_target *xcoff64_archive_p
160 PARAMS ((bfd *));
161 static bfd *xcoff64_openr_next_archived_file
162 PARAMS ((bfd *, bfd *));
163 static int xcoff64_sizeof_headers
164 PARAMS ((bfd *, bfd_boolean));
165 static asection *xcoff64_create_csect_from_smclas
166 PARAMS ((bfd *, union internal_auxent *, const char *));
167 static bfd_boolean xcoff64_is_lineno_count_overflow
168 PARAMS ((bfd *, bfd_vma));
169 static bfd_boolean xcoff64_is_reloc_count_overflow
170 PARAMS ((bfd *, bfd_vma));
171 static bfd_vma xcoff64_loader_symbol_offset
172 PARAMS ((bfd *, struct internal_ldhdr *));
173 static bfd_vma xcoff64_loader_reloc_offset
174 PARAMS ((bfd *, struct internal_ldhdr *));
175 static bfd_boolean xcoff64_generate_rtinit
176 PARAMS ((bfd *, const char *, const char *, bfd_boolean));
177 static bfd_boolean xcoff64_bad_format_hook
178 PARAMS ((bfd *, PTR ));
179
180 /* Relocation functions */
181 static bfd_boolean xcoff64_reloc_type_br
182 PARAMS ((XCOFF_RELOC_FUNCTION_ARGS));
183
184 bfd_boolean (*xcoff64_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION])
185 PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)) =
186 {
187 xcoff_reloc_type_pos, /* R_POS (0x00) */
188 xcoff_reloc_type_neg, /* R_NEG (0x01) */
189 xcoff_reloc_type_rel, /* R_REL (0x02) */
190 xcoff_reloc_type_toc, /* R_TOC (0x03) */
191 xcoff_reloc_type_fail, /* R_RTB (0x04) */
192 xcoff_reloc_type_toc, /* R_GL (0x05) */
193 xcoff_reloc_type_toc, /* R_TCL (0x06) */
194 xcoff_reloc_type_fail, /* (0x07) */
195 xcoff_reloc_type_ba, /* R_BA (0x08) */
196 xcoff_reloc_type_fail, /* (0x09) */
197 xcoff64_reloc_type_br, /* R_BR (0x0a) */
198 xcoff_reloc_type_fail, /* (0x0b) */
199 xcoff_reloc_type_pos, /* R_RL (0x0c) */
200 xcoff_reloc_type_pos, /* R_RLA (0x0d) */
201 xcoff_reloc_type_fail, /* (0x0e) */
202 xcoff_reloc_type_noop, /* R_REF (0x0f) */
203 xcoff_reloc_type_fail, /* (0x10) */
204 xcoff_reloc_type_fail, /* (0x11) */
205 xcoff_reloc_type_toc, /* R_TRL (0x12) */
206 xcoff_reloc_type_toc, /* R_TRLA (0x13) */
207 xcoff_reloc_type_fail, /* R_RRTBI (0x14) */
208 xcoff_reloc_type_fail, /* R_RRTBA (0x15) */
209 xcoff_reloc_type_ba, /* R_CAI (0x16) */
210 xcoff_reloc_type_crel, /* R_CREL (0x17) */
211 xcoff_reloc_type_ba, /* R_RBA (0x18) */
212 xcoff_reloc_type_ba, /* R_RBAC (0x19) */
213 xcoff64_reloc_type_br, /* R_RBR (0x1a) */
214 xcoff_reloc_type_ba, /* R_RBRC (0x1b) */
215 };
216
217 /* coffcode.h needs these to be defined. */
218 /* Internalcoff.h and coffcode.h modify themselves based on these flags. */
219 #define XCOFF64
220 #define RS6000COFF_C 1
221
222 #define SELECT_RELOC(internal, howto) \
223 { \
224 internal.r_type = howto->type; \
225 internal.r_size = \
226 ((howto->complain_on_overflow == complain_overflow_signed \
227 ? 0x80 \
228 : 0) \
229 | (howto->bitsize - 1)); \
230 }
231
232 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
233 #define COFF_LONG_FILENAMES
234 #define NO_COFF_SYMBOLS
235 #define RTYPE2HOWTO(cache_ptr, dst) xcoff64_rtype2howto (cache_ptr, dst)
236 #define coff_mkobject _bfd_xcoff_mkobject
237 #define coff_bfd_copy_private_bfd_data _bfd_xcoff_copy_private_bfd_data
238 #define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name
239 #define coff_bfd_reloc_type_lookup xcoff64_reloc_type_lookup
240 #ifdef AIX_CORE
241 extern const bfd_target * rs6000coff_core_p
242 PARAMS ((bfd *abfd));
243 extern bfd_boolean rs6000coff_core_file_matches_executable_p
244 PARAMS ((bfd *cbfd, bfd *ebfd));
245 extern char *rs6000coff_core_file_failing_command
246 PARAMS ((bfd *abfd));
247 extern int rs6000coff_core_file_failing_signal
248 PARAMS ((bfd *abfd));
249 #define CORE_FILE_P rs6000coff_core_p
250 #define coff_core_file_failing_command \
251 rs6000coff_core_file_failing_command
252 #define coff_core_file_failing_signal \
253 rs6000coff_core_file_failing_signal
254 #define coff_core_file_matches_executable_p \
255 rs6000coff_core_file_matches_executable_p
256 #else
257 #define CORE_FILE_P _bfd_dummy_target
258 #define coff_core_file_failing_command \
259 _bfd_nocore_core_file_failing_command
260 #define coff_core_file_failing_signal \
261 _bfd_nocore_core_file_failing_signal
262 #define coff_core_file_matches_executable_p \
263 _bfd_nocore_core_file_matches_executable_p
264 #endif
265 #define coff_SWAP_sym_in _bfd_xcoff64_swap_sym_in
266 #define coff_SWAP_sym_out _bfd_xcoff64_swap_sym_out
267 #define coff_SWAP_aux_in _bfd_xcoff64_swap_aux_in
268 #define coff_SWAP_aux_out _bfd_xcoff64_swap_aux_out
269 #define coff_swap_reloc_in xcoff64_swap_reloc_in
270 #define coff_swap_reloc_out xcoff64_swap_reloc_out
271 #define NO_COFF_RELOCS
272
273 #include "coffcode.h"
274
275 /* For XCOFF64, the effective width of symndx changes depending on
276 whether we are the first entry. Sigh. */
277 static void
278 _bfd_xcoff64_swap_lineno_in (abfd, ext1, in1)
279 bfd *abfd;
280 PTR ext1;
281 PTR in1;
282 {
283 LINENO *ext = (LINENO *) ext1;
284 struct internal_lineno *in = (struct internal_lineno *) in1;
285
286 in->l_lnno = H_GET_32 (abfd, (ext->l_lnno));
287 if (in->l_lnno == 0)
288 in->l_addr.l_symndx = H_GET_32 (abfd, ext->l_addr.l_symndx);
289 else
290 in->l_addr.l_paddr = H_GET_64 (abfd, ext->l_addr.l_paddr);
291 }
292
293 static unsigned int
294 _bfd_xcoff64_swap_lineno_out (abfd, inp, outp)
295 bfd *abfd;
296 PTR inp;
297 PTR outp;
298 {
299 struct internal_lineno *in = (struct internal_lineno *) inp;
300 struct external_lineno *ext = (struct external_lineno *) outp;
301
302 H_PUT_32 (abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx);
303 H_PUT_32 (abfd, in->l_lnno, (ext->l_lnno));
304
305 if (in->l_lnno == 0)
306 H_PUT_32 (abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx);
307 else
308 H_PUT_64 (abfd, in->l_addr.l_paddr, ext->l_addr.l_paddr);
309
310 return bfd_coff_linesz (abfd);
311 }
312
313 static void
314 _bfd_xcoff64_swap_sym_in (abfd, ext1, in1)
315 bfd *abfd;
316 PTR ext1;
317 PTR in1;
318 {
319 struct external_syment *ext = (struct external_syment *) ext1;
320 struct internal_syment *in = (struct internal_syment *) in1;
321
322 in->_n._n_n._n_zeroes = 0;
323 in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e_offset);
324 in->n_value = H_GET_64 (abfd, ext->e_value);
325 in->n_scnum = H_GET_16 (abfd, ext->e_scnum);
326 in->n_type = H_GET_16 (abfd, ext->e_type);
327 in->n_sclass = H_GET_8 (abfd, ext->e_sclass);
328 in->n_numaux = H_GET_8 (abfd, ext->e_numaux);
329 }
330
331 static unsigned int
332 _bfd_xcoff64_swap_sym_out (abfd, inp, extp)
333 bfd *abfd;
334 PTR inp;
335 PTR extp;
336 {
337 struct internal_syment *in = (struct internal_syment *) inp;
338 struct external_syment *ext = (struct external_syment *) extp;
339
340 H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e_offset);
341 H_PUT_64 (abfd, in->n_value, ext->e_value);
342 H_PUT_16 (abfd, in->n_scnum, ext->e_scnum);
343 H_PUT_16 (abfd, in->n_type, ext->e_type);
344 H_PUT_8 (abfd, in->n_sclass, ext->e_sclass);
345 H_PUT_8 (abfd, in->n_numaux, ext->e_numaux);
346 return bfd_coff_symesz (abfd);
347 }
348
349 static void
350 _bfd_xcoff64_swap_aux_in (abfd, ext1, type, class, indx, numaux, in1)
351 bfd *abfd;
352 PTR ext1;
353 int type;
354 int class;
355 int indx;
356 int numaux;
357 PTR in1;
358 {
359 union external_auxent *ext = (union external_auxent *) ext1;
360 union internal_auxent *in = (union internal_auxent *) in1;
361
362 switch (class)
363 {
364 case C_FILE:
365 if (ext->x_file.x_n.x_zeroes[0] == 0)
366 {
367 in->x_file.x_n.x_zeroes = 0;
368 in->x_file.x_n.x_offset = H_GET_32 (abfd, ext->x_file.x_n.x_offset);
369 }
370 else
371 {
372 memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN);
373 }
374 goto end;
375
376 /* RS/6000 "csect" auxents */
377 case C_EXT:
378 case C_HIDEXT:
379 if (indx + 1 == numaux)
380 {
381 bfd_signed_vma h = 0;
382 bfd_vma l = 0;
383
384 h = H_GET_S32 (abfd, ext->x_csect.x_scnlen_hi);
385 l = H_GET_32 (abfd, ext->x_csect.x_scnlen_lo);
386
387 in->x_csect.x_scnlen.l = h << 32 | (l & 0xffffffff);
388
389 in->x_csect.x_parmhash = H_GET_32 (abfd, ext->x_csect.x_parmhash);
390 in->x_csect.x_snhash = H_GET_16 (abfd, ext->x_csect.x_snhash);
391 /* We don't have to hack bitfields in x_smtyp because it's
392 defined by shifts-and-ands, which are equivalent on all
393 byte orders. */
394 in->x_csect.x_smtyp = H_GET_8 (abfd, ext->x_csect.x_smtyp);
395 in->x_csect.x_smclas = H_GET_8 (abfd, ext->x_csect.x_smclas);
396 goto end;
397 }
398 break;
399
400 case C_STAT:
401 case C_LEAFSTAT:
402 case C_HIDDEN:
403 if (type == T_NULL)
404 {
405 /* PE defines some extra fields; we zero them out for
406 safety. */
407 in->x_scn.x_checksum = 0;
408 in->x_scn.x_associated = 0;
409 in->x_scn.x_comdat = 0;
410
411 goto end;
412 }
413 break;
414 }
415
416 if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
417 {
418 in->x_sym.x_fcnary.x_fcn.x_lnnoptr
419 = H_GET_64 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
420 in->x_sym.x_fcnary.x_fcn.x_endndx.l
421 = H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx);
422 }
423 if (ISFCN (type))
424 {
425 in->x_sym.x_misc.x_fsize
426 = H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_fsize);
427 }
428 else
429 {
430 in->x_sym.x_misc.x_lnsz.x_lnno
431 = H_GET_32 (abfd, ext->x_sym.x_fcnary.x_lnsz.x_lnno);
432 in->x_sym.x_misc.x_lnsz.x_size
433 = H_GET_16 (abfd, ext->x_sym.x_fcnary.x_lnsz.x_size);
434 }
435
436 end: ;
437 }
438
439 static unsigned int
440 _bfd_xcoff64_swap_aux_out (abfd, inp, type, class, indx, numaux, extp)
441 bfd *abfd;
442 PTR inp;
443 int type;
444 int class;
445 int indx ATTRIBUTE_UNUSED;
446 int numaux ATTRIBUTE_UNUSED;
447 PTR extp;
448 {
449 union internal_auxent *in = (union internal_auxent *) inp;
450 union external_auxent *ext = (union external_auxent *) extp;
451
452 memset ((PTR) ext, 0, bfd_coff_auxesz (abfd));
453 switch (class)
454 {
455 case C_FILE:
456 if (in->x_file.x_n.x_zeroes == 0)
457 {
458 H_PUT_32 (abfd, 0, ext->x_file.x_n.x_zeroes);
459 H_PUT_32 (abfd, in->x_file.x_n.x_offset, ext->x_file.x_n.x_offset);
460 }
461 else
462 {
463 memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN);
464 }
465 H_PUT_8 (abfd, _AUX_FILE, ext->x_auxtype.x_auxtype);
466 goto end;
467
468 /* RS/6000 "csect" auxents */
469 case C_EXT:
470 case C_HIDEXT:
471 if (indx + 1 == numaux)
472 {
473 bfd_vma temp;
474
475 temp = in->x_csect.x_scnlen.l & 0xffffffff;
476 H_PUT_32 (abfd, temp, ext->x_csect.x_scnlen_lo);
477 temp = in->x_csect.x_scnlen.l >> 32;
478 H_PUT_32 (abfd, temp, ext->x_csect.x_scnlen_hi);
479 H_PUT_32 (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
480 H_PUT_16 (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
481 /* We don't have to hack bitfields in x_smtyp because it's
482 defined by shifts-and-ands, which are equivalent on all
483 byte orders. */
484 H_PUT_8 (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
485 H_PUT_8 (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
486 H_PUT_8 (abfd, _AUX_CSECT, ext->x_auxtype.x_auxtype);
487 goto end;
488 }
489 break;
490
491 case C_STAT:
492 case C_LEAFSTAT:
493 case C_HIDDEN:
494 if (type == T_NULL)
495 {
496 goto end;
497 }
498 break;
499 }
500
501 if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
502 {
503 H_PUT_64 (abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr,
504 ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
505 H_PUT_8 (abfd, _AUX_FCN,
506 ext->x_auxtype.x_auxtype);
507 H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l,
508 ext->x_sym.x_fcnary.x_fcn.x_endndx);
509 }
510 if (ISFCN (type))
511 {
512 H_PUT_32 (abfd, in->x_sym.x_misc.x_fsize,
513 ext->x_sym.x_fcnary.x_fcn.x_fsize);
514 }
515 else
516 {
517 H_PUT_32 (abfd, in->x_sym.x_misc.x_lnsz.x_lnno,
518 ext->x_sym.x_fcnary.x_lnsz.x_lnno);
519 H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_size,
520 ext->x_sym.x_fcnary.x_lnsz.x_size);
521 }
522
523 end:
524
525 return bfd_coff_auxesz (abfd);
526 }
527
528 static bfd_boolean
529 _bfd_xcoff64_put_symbol_name (abfd, strtab, sym, name)
530 bfd *abfd;
531 struct bfd_strtab_hash *strtab;
532 struct internal_syment *sym;
533 const char *name;
534 {
535 bfd_boolean hash;
536 bfd_size_type indx;
537
538 hash = TRUE;
539
540 if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
541 hash = FALSE;
542
543 indx = _bfd_stringtab_add (strtab, name, hash, FALSE);
544
545 if (indx == (bfd_size_type) -1)
546 return FALSE;
547
548 sym->_n._n_n._n_zeroes = 0;
549 sym->_n._n_n._n_offset = STRING_SIZE_SIZE + indx;
550
551 return TRUE;
552 }
553
554 static bfd_boolean
555 _bfd_xcoff64_put_ldsymbol_name (abfd, ldinfo, ldsym, name)
556 bfd *abfd ATTRIBUTE_UNUSED;
557 struct xcoff_loader_info *ldinfo;
558 struct internal_ldsym *ldsym;
559 const char *name;
560 {
561 size_t len;
562 len = strlen (name);
563
564 if (ldinfo->string_size + len + 3 > ldinfo->string_alc)
565 {
566 bfd_size_type newalc;
567 bfd_byte *newstrings;
568
569 newalc = ldinfo->string_alc * 2;
570 if (newalc == 0)
571 newalc = 32;
572 while (ldinfo->string_size + len + 3 > newalc)
573 newalc *= 2;
574
575 newstrings = ((bfd_byte *)
576 bfd_realloc ((PTR) ldinfo->strings, newalc));
577 if (newstrings == NULL)
578 {
579 ldinfo->failed = TRUE;
580 return FALSE;
581 }
582 ldinfo->string_alc = newalc;
583 ldinfo->strings = newstrings;
584 }
585
586 bfd_put_16 (ldinfo->output_bfd, (bfd_vma) (len + 1),
587 ldinfo->strings + ldinfo->string_size);
588 strcpy (ldinfo->strings + ldinfo->string_size + 2, name);
589 ldsym->_l._l_l._l_zeroes = 0;
590 ldsym->_l._l_l._l_offset = ldinfo->string_size + 2;
591 ldinfo->string_size += len + 3;
592
593 return TRUE;
594 }
595
596 /* Routines to swap information in the XCOFF .loader section. If we
597 ever need to write an XCOFF loader, this stuff will need to be
598 moved to another file shared by the linker (which XCOFF calls the
599 ``binder'') and the loader. */
600
601 /* Swap in the ldhdr structure. */
602
603 static void
604 xcoff64_swap_ldhdr_in (abfd, s, dst)
605 bfd *abfd;
606 const PTR s;
607 struct internal_ldhdr *dst;
608 {
609 const struct external_ldhdr *src = (const struct external_ldhdr *) s;
610
611 dst->l_version = bfd_get_32 (abfd, src->l_version);
612 dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms);
613 dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc);
614 dst->l_istlen = bfd_get_32 (abfd, src->l_istlen);
615 dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid);
616 dst->l_stlen = bfd_get_32 (abfd, src->l_stlen);
617 dst->l_impoff = bfd_get_64 (abfd, src->l_impoff);
618 dst->l_stoff = bfd_get_64 (abfd, src->l_stoff);
619 dst->l_symoff = bfd_get_64 (abfd, src->l_symoff);
620 dst->l_rldoff = bfd_get_64 (abfd, src->l_rldoff);
621 }
622
623 /* Swap out the ldhdr structure. */
624
625 static void
626 xcoff64_swap_ldhdr_out (abfd, src, d)
627 bfd *abfd;
628 const struct internal_ldhdr *src;
629 PTR d;
630 {
631 struct external_ldhdr *dst = (struct external_ldhdr *) d;
632
633 bfd_put_32 (abfd, (bfd_vma) src->l_version, dst->l_version);
634 bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms);
635 bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc);
636 bfd_put_32 (abfd, src->l_istlen, dst->l_istlen);
637 bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid);
638 bfd_put_32 (abfd, src->l_stlen, dst->l_stlen);
639 bfd_put_64 (abfd, src->l_impoff, dst->l_impoff);
640 bfd_put_64 (abfd, src->l_stoff, dst->l_stoff);
641 bfd_put_64 (abfd, src->l_symoff, dst->l_symoff);
642 bfd_put_64 (abfd, src->l_rldoff, dst->l_rldoff);
643 }
644
645 /* Swap in the ldsym structure. */
646
647 static void
648 xcoff64_swap_ldsym_in (abfd, s, dst)
649 bfd *abfd;
650 const PTR s;
651 struct internal_ldsym *dst;
652 {
653 const struct external_ldsym *src = (const struct external_ldsym *) s;
654 /* XCOFF64 does not use l_zeroes like XCOFF32
655 Set the internal l_zeroes to 0 so the common 32/64 code uses l_value
656 as an offset into the loader symbol table. */
657 dst->_l._l_l._l_zeroes = 0;
658 dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->l_offset);
659 dst->l_value = bfd_get_64 (abfd, src->l_value);
660 dst->l_scnum = bfd_get_16 (abfd, src->l_scnum);
661 dst->l_smtype = bfd_get_8 (abfd, src->l_smtype);
662 dst->l_smclas = bfd_get_8 (abfd, src->l_smclas);
663 dst->l_ifile = bfd_get_32 (abfd, src->l_ifile);
664 dst->l_parm = bfd_get_32 (abfd, src->l_parm);
665 }
666
667 /* Swap out the ldsym structure. */
668
669 static void
670 xcoff64_swap_ldsym_out (abfd, src, d)
671 bfd *abfd;
672 const struct internal_ldsym *src;
673 PTR d;
674 {
675 struct external_ldsym *dst = (struct external_ldsym *) d;
676
677 bfd_put_64 (abfd, src->l_value, dst->l_value);
678 bfd_put_32 (abfd, (bfd_vma) src->_l._l_l._l_offset, dst->l_offset);
679 bfd_put_16 (abfd, (bfd_vma) src->l_scnum, dst->l_scnum);
680 bfd_put_8 (abfd, src->l_smtype, dst->l_smtype);
681 bfd_put_8 (abfd, src->l_smclas, dst->l_smclas);
682 bfd_put_32 (abfd, src->l_ifile, dst->l_ifile);
683 bfd_put_32 (abfd, src->l_parm, dst->l_parm);
684 }
685
686 static void
687 xcoff64_swap_reloc_in (abfd, s, d)
688 bfd *abfd;
689 PTR s;
690 PTR d;
691 {
692 struct external_reloc *src = (struct external_reloc *) s;
693 struct internal_reloc *dst = (struct internal_reloc *) d;
694
695 memset (dst, 0, sizeof (struct internal_reloc));
696
697 dst->r_vaddr = bfd_get_64 (abfd, src->r_vaddr);
698 dst->r_symndx = bfd_get_32 (abfd, src->r_symndx);
699 dst->r_size = bfd_get_8 (abfd, src->r_size);
700 dst->r_type = bfd_get_8 (abfd, src->r_type);
701 }
702
703 static unsigned int
704 xcoff64_swap_reloc_out (abfd, s, d)
705 bfd *abfd;
706 PTR s;
707 PTR d;
708 {
709 struct internal_reloc *src = (struct internal_reloc *) s;
710 struct external_reloc *dst = (struct external_reloc *) d;
711
712 bfd_put_64 (abfd, src->r_vaddr, dst->r_vaddr);
713 bfd_put_32 (abfd, src->r_symndx, dst->r_symndx);
714 bfd_put_8 (abfd, src->r_type, dst->r_type);
715 bfd_put_8 (abfd, src->r_size, dst->r_size);
716
717 return bfd_coff_relsz (abfd);
718 }
719
720 /* Swap in the ldrel structure. */
721
722 static void
723 xcoff64_swap_ldrel_in (abfd, s, dst)
724 bfd *abfd;
725 const PTR s;
726 struct internal_ldrel *dst;
727 {
728 const struct external_ldrel *src = (const struct external_ldrel *) s;
729
730 dst->l_vaddr = bfd_get_64 (abfd, src->l_vaddr);
731 dst->l_symndx = bfd_get_32 (abfd, src->l_symndx);
732 dst->l_rtype = bfd_get_16 (abfd, src->l_rtype);
733 dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm);
734 }
735
736 /* Swap out the ldrel structure. */
737
738 static void
739 xcoff64_swap_ldrel_out (abfd, src, d)
740 bfd *abfd;
741 const struct internal_ldrel *src;
742 PTR d;
743 {
744 struct external_ldrel *dst = (struct external_ldrel *) d;
745
746 bfd_put_64 (abfd, src->l_vaddr, dst->l_vaddr);
747 bfd_put_16 (abfd, (bfd_vma) src->l_rtype, dst->l_rtype);
748 bfd_put_16 (abfd, (bfd_vma) src->l_rsecnm, dst->l_rsecnm);
749 bfd_put_32 (abfd, src->l_symndx, dst->l_symndx);
750 }
751
752 static bfd_boolean
753 xcoff64_write_object_contents (abfd)
754 bfd *abfd;
755 {
756 asection *current;
757 bfd_boolean hasrelocs = FALSE;
758 bfd_boolean haslinno = FALSE;
759 file_ptr scn_base;
760 file_ptr reloc_base;
761 file_ptr lineno_base;
762 file_ptr sym_base;
763 unsigned long reloc_size = 0;
764 unsigned long lnno_size = 0;
765 bfd_boolean long_section_names;
766 asection *text_sec = ((void *) 0);
767 asection *data_sec = ((void *) 0);
768 asection *bss_sec = ((void *) 0);
769 struct internal_filehdr internal_f;
770 struct internal_aouthdr internal_a;
771
772 bfd_set_error (bfd_error_system_call);
773
774 if (! abfd->output_has_begun)
775 {
776 if (! bfd_coff_compute_section_file_positions (abfd))
777 return FALSE;
778 }
779
780 /* Work out the size of the reloc and linno areas. */
781 reloc_base = obj_relocbase (abfd);
782
783 for (current = abfd->sections; current != NULL; current = current->next)
784 reloc_size += current->reloc_count * bfd_coff_relsz (abfd);
785
786 lineno_base = reloc_base + reloc_size;
787
788 /* Make a pass through the symbol table to count line number entries and
789 put them into the correct asections. */
790 lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd);
791
792 sym_base = lineno_base + lnno_size;
793
794 /* Indicate in each section->line_filepos its actual file address. */
795 for (current = abfd->sections; current != NULL; current = current->next)
796 {
797 if (current->lineno_count)
798 {
799 current->line_filepos = lineno_base;
800 current->moving_line_filepos = lineno_base;
801 lineno_base += current->lineno_count * bfd_coff_linesz (abfd);
802 }
803 else
804 {
805 current->line_filepos = 0;
806 }
807
808 if (current->reloc_count)
809 {
810 current->rel_filepos = reloc_base;
811 reloc_base += current->reloc_count * bfd_coff_relsz (abfd);
812 }
813 else
814 {
815 current->rel_filepos = 0;
816 }
817 }
818
819 if ((abfd->flags & EXEC_P) != 0)
820 {
821 scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd);
822 internal_f.f_opthdr = bfd_coff_aoutsz (abfd);
823 }
824 else
825 {
826 scn_base = bfd_coff_filhsz (abfd);
827 internal_f.f_opthdr = 0;
828 }
829
830 internal_f.f_nscns = 0;
831
832 if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
833 return FALSE;
834
835 long_section_names = FALSE;
836 for (current = abfd->sections; current != NULL; current = current->next)
837 {
838 struct internal_scnhdr section;
839 struct external_scnhdr buff;
840 bfd_size_type amount;
841
842 internal_f.f_nscns++;
843
844 strncpy (section.s_name, current->name, SCNNMLEN);
845
846 section.s_vaddr = current->vma;
847 section.s_paddr = current->lma;
848 section.s_size = current->size;
849
850 /* If this section has no size or is unloadable then the scnptr
851 will be 0 too. */
852 if (current->size == 0
853 || (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
854 {
855 section.s_scnptr = 0;
856 }
857 else
858 {
859 section.s_scnptr = current->filepos;
860 }
861
862 section.s_relptr = current->rel_filepos;
863 section.s_lnnoptr = current->line_filepos;
864 section.s_nreloc = current->reloc_count;
865
866 section.s_nlnno = current->lineno_count;
867 if (current->reloc_count != 0)
868 hasrelocs = TRUE;
869 if (current->lineno_count != 0)
870 haslinno = TRUE;
871
872 section.s_flags = sec_to_styp_flags (current->name, current->flags);
873
874 if (!strcmp (current->name, _TEXT))
875 {
876 text_sec = current;
877 }
878 else if (!strcmp (current->name, _DATA))
879 {
880 data_sec = current;
881 }
882 else if (!strcmp (current->name, _BSS))
883 {
884 bss_sec = current;
885 }
886
887 amount = bfd_coff_scnhsz (abfd);
888 if (bfd_coff_swap_scnhdr_out (abfd, &section, &buff) == 0
889 || bfd_bwrite ((PTR) (&buff), amount, abfd) != amount)
890 return FALSE;
891 }
892
893 internal_f.f_timdat = 0;
894
895 internal_f.f_flags = 0;
896
897 if (!hasrelocs)
898 internal_f.f_flags |= F_RELFLG;
899 if (!haslinno)
900 internal_f.f_flags |= F_LNNO;
901 if (abfd->flags & EXEC_P)
902 internal_f.f_flags |= F_EXEC;
903
904 /* FIXME: this is wrong for PPC_PE! */
905 if (bfd_little_endian (abfd))
906 internal_f.f_flags |= F_AR32WR;
907 else
908 internal_f.f_flags |= F_AR32W;
909
910 if ((abfd->flags & DYNAMIC) != 0)
911 internal_f.f_flags |= F_SHROBJ;
912 if (bfd_get_section_by_name (abfd, _LOADER) != NULL)
913 internal_f.f_flags |= F_DYNLOAD;
914
915 memset (&internal_a, 0, sizeof internal_a);
916
917 internal_f.f_magic = bfd_xcoff_magic_number (abfd);
918 internal_a.magic = (abfd->flags & D_PAGED
919 ? RS6K_AOUTHDR_ZMAGIC
920 : (abfd->flags & WP_TEXT
921 ? RS6K_AOUTHDR_NMAGIC
922 : RS6K_AOUTHDR_OMAGIC));
923
924 /* FIXME: Does anybody ever set this to another value? */
925 internal_a.vstamp = 0;
926
927 /* Now should write relocs, strings, syms. */
928 obj_sym_filepos (abfd) = sym_base;
929
930 internal_f.f_symptr = 0;
931 internal_f.f_nsyms = 0;
932
933 /* If bfd_get_symcount (abfd) != 0, then we are not using the COFF
934 backend linker, and obj_raw_syment_count is not valid until after
935 coff_write_symbols is called. */
936 if (bfd_get_symcount (abfd) != 0)
937 {
938 int firstundef;
939
940 if (!coff_renumber_symbols (abfd, &firstundef))
941 return FALSE;
942 coff_mangle_symbols (abfd);
943 if (! coff_write_symbols (abfd))
944 return FALSE;
945 if (! coff_write_linenumbers (abfd))
946 return FALSE;
947 if (! coff_write_relocs (abfd, firstundef))
948 return FALSE;
949
950 internal_f.f_symptr = sym_base;
951 internal_f.f_nsyms = bfd_get_symcount (abfd);
952 }
953 else if (obj_raw_syment_count (abfd) != 0)
954 {
955 internal_f.f_symptr = sym_base;
956
957 /* AIX appears to require that F_RELFLG not be set if there are
958 local symbols but no relocations. */
959 internal_f.f_flags &=~ F_RELFLG;
960 }
961 else
962 {
963 internal_f.f_flags |= F_LSYMS;
964 }
965
966 if (text_sec)
967 {
968 internal_a.tsize = text_sec->size;
969 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
970 }
971
972 if (data_sec)
973 {
974 internal_a.dsize = data_sec->size;
975 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
976 }
977
978 if (bss_sec)
979 {
980 internal_a.bsize = bss_sec->size;
981 if (internal_a.bsize && bss_sec->vma < internal_a.data_start)
982 internal_a.data_start = bss_sec->vma;
983 }
984
985 internal_a.entry = bfd_get_start_address (abfd);
986 internal_f.f_nsyms = obj_raw_syment_count (abfd);
987
988 if (xcoff_data (abfd)->full_aouthdr)
989 {
990 bfd_vma toc;
991 asection *loader_sec;
992
993 internal_a.vstamp = 1;
994
995 internal_a.o_snentry = xcoff_data (abfd)->snentry;
996 if (internal_a.o_snentry == 0)
997 internal_a.entry = (bfd_vma) -1;
998
999 if (text_sec != NULL)
1000 {
1001 internal_a.o_sntext = text_sec->target_index;
1002 internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec);
1003 }
1004 else
1005 {
1006 internal_a.o_sntext = 0;
1007 internal_a.o_algntext = 0;
1008 }
1009
1010 if (data_sec != NULL)
1011 {
1012 internal_a.o_sndata = data_sec->target_index;
1013 internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec);
1014 }
1015 else
1016 {
1017 internal_a.o_sndata = 0;
1018 internal_a.o_algndata = 0;
1019 }
1020
1021 loader_sec = bfd_get_section_by_name (abfd, ".loader");
1022 if (loader_sec != NULL)
1023 internal_a.o_snloader = loader_sec->target_index;
1024 else
1025 internal_a.o_snloader = 0;
1026 if (bss_sec != NULL)
1027 internal_a.o_snbss = bss_sec->target_index;
1028 else
1029 internal_a.o_snbss = 0;
1030
1031 toc = xcoff_data (abfd)->toc;
1032 internal_a.o_toc = toc;
1033 internal_a.o_sntoc = xcoff_data (abfd)->sntoc;
1034
1035 internal_a.o_modtype = xcoff_data (abfd)->modtype;
1036 if (xcoff_data (abfd)->cputype != -1)
1037 internal_a.o_cputype = xcoff_data (abfd)->cputype;
1038 else
1039 {
1040 switch (bfd_get_arch (abfd))
1041 {
1042 case bfd_arch_rs6000:
1043 internal_a.o_cputype = 4;
1044 break;
1045 case bfd_arch_powerpc:
1046 if (bfd_get_mach (abfd) == bfd_mach_ppc)
1047 internal_a.o_cputype = 3;
1048 else
1049 internal_a.o_cputype = 1;
1050 break;
1051 default:
1052 abort ();
1053 }
1054 }
1055 internal_a.o_maxstack = xcoff_data (abfd)->maxstack;
1056 internal_a.o_maxdata = xcoff_data (abfd)->maxdata;
1057 }
1058
1059 if (bfd_seek (abfd, (file_ptr) 0, 0) != 0)
1060 return FALSE;
1061
1062 {
1063 char * buff;
1064 bfd_size_type amount = bfd_coff_filhsz (abfd);
1065
1066 buff = bfd_malloc (amount);
1067 if (buff == NULL)
1068 return FALSE;
1069
1070 bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, (PTR) buff);
1071 amount = bfd_bwrite ((PTR) buff, amount, abfd);
1072
1073 free (buff);
1074
1075 if (amount != bfd_coff_filhsz (abfd))
1076 return FALSE;
1077 }
1078
1079 if (abfd->flags & EXEC_P)
1080 {
1081 char * buff;
1082 bfd_size_type amount = bfd_coff_aoutsz (abfd);
1083
1084 buff = bfd_malloc (amount);
1085 if (buff == NULL)
1086 return FALSE;
1087
1088 bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, (PTR) buff);
1089 amount = bfd_bwrite ((PTR) buff, amount, abfd);
1090
1091 free (buff);
1092
1093 if (amount != bfd_coff_aoutsz (abfd))
1094 return FALSE;
1095 }
1096
1097 return TRUE;
1098 }
1099
1100 static bfd_boolean
1101 xcoff64_reloc_type_br (input_bfd, input_section, output_bfd, rel, sym, howto,
1102 val, addend, relocation, contents)
1103 bfd *input_bfd;
1104 asection *input_section;
1105 bfd *output_bfd ATTRIBUTE_UNUSED;
1106 struct internal_reloc *rel;
1107 struct internal_syment *sym ATTRIBUTE_UNUSED;
1108 struct reloc_howto_struct *howto;
1109 bfd_vma val;
1110 bfd_vma addend;
1111 bfd_vma *relocation;
1112 bfd_byte *contents;
1113 {
1114 struct xcoff_link_hash_entry *h;
1115
1116 if (0 > rel->r_symndx)
1117 return FALSE;
1118
1119 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx];
1120
1121 /* If we see an R_BR or R_RBR reloc which is jumping to global
1122 linkage code, and it is followed by an appropriate cror nop
1123 instruction, we replace the cror with ld r2,40(r1). This
1124 restores the TOC after the glink code. Contrariwise, if the
1125 call is followed by a ld r2,40(r1), but the call is not
1126 going to global linkage code, we can replace the load with a
1127 cror. */
1128 if (NULL != h
1129 && bfd_link_hash_defined == h->root.type
1130 && rel->r_vaddr - input_section->vma + 8 <= input_section->size)
1131 {
1132 bfd_byte *pnext;
1133 unsigned long next;
1134
1135 pnext = contents + (rel->r_vaddr - input_section->vma) + 4;
1136 next = bfd_get_32 (input_bfd, pnext);
1137
1138 /* The _ptrgl function is magic. It is used by the AIX compiler to call
1139 a function through a pointer. */
1140 if (h->smclas == XMC_GL || strcmp (h->root.root.string, "._ptrgl") == 0)
1141 {
1142 if (next == 0x4def7b82 /* cror 15,15,15 */
1143 || next == 0x4ffffb82 /* cror 31,31,31 */
1144 || next == 0x60000000) /* ori r0,r0,0 */
1145 bfd_put_32 (input_bfd, 0xe8410028, pnext); /* ld r2,40(r1) */
1146 }
1147 else
1148 {
1149 if (next == 0xe8410028) /* ld r2,40(r1) */
1150 bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */
1151 }
1152 }
1153 else if (NULL != h && bfd_link_hash_undefined == h->root.type)
1154 {
1155 /* Normally, this relocation is against a defined symbol. In the
1156 case where this is a partial link and the output section offset
1157 is greater than 2^25, the linker will return an invalid error
1158 message that the relocation has been truncated. Yes it has been
1159 truncated but no it not important. For this case, disable the
1160 overflow checking. */
1161 howto->complain_on_overflow = complain_overflow_dont;
1162 }
1163
1164 howto->pc_relative = TRUE;
1165 howto->src_mask &= ~3;
1166 howto->dst_mask = howto->src_mask;
1167
1168 /* A PC relative reloc includes the section address. */
1169 addend += input_section->vma;
1170
1171 *relocation = val + addend;
1172 *relocation -= (input_section->output_section->vma
1173 + input_section->output_offset);
1174 return TRUE;
1175 }
1176
1177 /* This is the relocation function for the PowerPC64.
1178 See xcoff_ppc_relocation_section for more information. */
1179
1180 bfd_boolean
1181 xcoff64_ppc_relocate_section (output_bfd, info, input_bfd,
1182 input_section, contents, relocs, syms,
1183 sections)
1184 bfd *output_bfd;
1185 struct bfd_link_info *info;
1186 bfd *input_bfd;
1187 asection *input_section;
1188 bfd_byte *contents;
1189 struct internal_reloc *relocs;
1190 struct internal_syment *syms;
1191 asection **sections;
1192 {
1193 struct internal_reloc *rel;
1194 struct internal_reloc *relend;
1195
1196 rel = relocs;
1197 relend = rel + input_section->reloc_count;
1198 for (; rel < relend; rel++)
1199 {
1200 long symndx;
1201 struct xcoff_link_hash_entry *h;
1202 struct internal_syment *sym;
1203 bfd_vma addend;
1204 bfd_vma val;
1205 struct reloc_howto_struct howto;
1206 bfd_vma relocation;
1207 bfd_vma value_to_relocate;
1208 bfd_vma address;
1209 bfd_byte *location;
1210
1211 /* Relocation type R_REF is a special relocation type which is
1212 merely used to prevent garbage collection from occurring for
1213 the csect including the symbol which it references. */
1214 if (rel->r_type == R_REF)
1215 continue;
1216
1217 /* howto */
1218 howto.type = rel->r_type;
1219 howto.rightshift = 0;
1220 howto.bitsize = (rel->r_size & 0x3f) + 1;
1221 howto.size = howto.bitsize > 16 ? (howto.bitsize > 32 ? 4 : 2) : 1;
1222 howto.pc_relative = FALSE;
1223 howto.bitpos = 0;
1224 howto.complain_on_overflow = (rel->r_size & 0x80
1225 ? complain_overflow_signed
1226 : complain_overflow_bitfield);
1227 howto.special_function = NULL;
1228 howto.name = "internal";
1229 howto.partial_inplace = TRUE;
1230 howto.src_mask = howto.dst_mask = N_ONES (howto.bitsize);
1231 howto.pcrel_offset = FALSE;
1232
1233 /* symbol */
1234 val = 0;
1235 addend = 0;
1236 h = NULL;
1237 sym = NULL;
1238 symndx = rel->r_symndx;
1239
1240 if (-1 != symndx)
1241 {
1242 asection *sec;
1243
1244 h = obj_xcoff_sym_hashes (input_bfd)[symndx];
1245 sym = syms + symndx;
1246 addend = - sym->n_value;
1247
1248 if (NULL == h)
1249 {
1250 sec = sections[symndx];
1251 /* Hack to make sure we use the right TOC anchor value
1252 if this reloc is against the TOC anchor. */
1253 if (sec->name[3] == '0'
1254 && strcmp (sec->name, ".tc0") == 0)
1255 val = xcoff_data (output_bfd)->toc;
1256 else
1257 val = (sec->output_section->vma
1258 + sec->output_offset
1259 + sym->n_value
1260 - sec->vma);
1261 }
1262 else
1263 {
1264 if (h->root.type == bfd_link_hash_defined
1265 || h->root.type == bfd_link_hash_defweak)
1266 {
1267 sec = h->root.u.def.section;
1268 val = (h->root.u.def.value
1269 + sec->output_section->vma
1270 + sec->output_offset);
1271 }
1272 else if (h->root.type == bfd_link_hash_common)
1273 {
1274 sec = h->root.u.c.p->section;
1275 val = (sec->output_section->vma
1276 + sec->output_offset);
1277 }
1278 else if ((0 == (h->flags & (XCOFF_DEF_DYNAMIC | XCOFF_IMPORT)))
1279 && ! info->relocatable)
1280 {
1281 if (! ((*info->callbacks->undefined_symbol)
1282 (info, h->root.root.string, input_bfd, input_section,
1283 rel->r_vaddr - input_section->vma, TRUE)))
1284 return FALSE;
1285
1286 /* Don't try to process the reloc. It can't help, and
1287 it may generate another error. */
1288 continue;
1289 }
1290 }
1291 }
1292
1293 if (rel->r_type >= XCOFF_MAX_CALCULATE_RELOCATION
1294 || !((*xcoff64_calculate_relocation[rel->r_type])
1295 (input_bfd, input_section, output_bfd, rel, sym, &howto, val,
1296 addend, &relocation, contents)))
1297 return FALSE;
1298
1299 /* address */
1300 address = rel->r_vaddr - input_section->vma;
1301 location = contents + address;
1302
1303 if (address > input_section->size)
1304 abort ();
1305
1306 /* Get the value we are going to relocate. */
1307 if (1 == howto.size)
1308 value_to_relocate = bfd_get_16 (input_bfd, location);
1309 else if (2 == howto.size)
1310 value_to_relocate = bfd_get_32 (input_bfd, location);
1311 else
1312 value_to_relocate = bfd_get_64 (input_bfd, location);
1313
1314 /* overflow.
1315
1316 FIXME: We may drop bits during the addition
1317 which we don't check for. We must either check at every single
1318 operation, which would be tedious, or we must do the computations
1319 in a type larger than bfd_vma, which would be inefficient. */
1320
1321 if ((unsigned int) howto.complain_on_overflow
1322 >= XCOFF_MAX_COMPLAIN_OVERFLOW)
1323 abort ();
1324
1325 if (((*xcoff_complain_overflow[howto.complain_on_overflow])
1326 (input_bfd, value_to_relocate, relocation, &howto)))
1327 {
1328 const char *name;
1329 char buf[SYMNMLEN + 1];
1330 char reloc_type_name[10];
1331
1332 if (symndx == -1)
1333 {
1334 name = "*ABS*";
1335 }
1336 else if (h != NULL)
1337 {
1338 name = h->root.root.string;
1339 }
1340 else
1341 {
1342 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
1343 if (name == NULL)
1344 name = "UNKNOWN";
1345 }
1346 sprintf (reloc_type_name, "0x%02x", rel->r_type);
1347
1348 if (! ((*info->callbacks->reloc_overflow)
1349 (info, name, reloc_type_name, (bfd_vma) 0, input_bfd,
1350 input_section, rel->r_vaddr - input_section->vma)))
1351 return FALSE;
1352 }
1353
1354 /* Add RELOCATION to the right bits of VALUE_TO_RELOCATE. */
1355 value_to_relocate = ((value_to_relocate & ~howto.dst_mask)
1356 | (((value_to_relocate & howto.src_mask)
1357 + relocation) & howto.dst_mask));
1358
1359 /* Put the value back in the object file. */
1360 if (1 == howto.size)
1361 bfd_put_16 (input_bfd, value_to_relocate, location);
1362 else if (2 == howto.size)
1363 bfd_put_32 (input_bfd, value_to_relocate, location);
1364 else
1365 bfd_put_64 (input_bfd, value_to_relocate, location);
1366
1367 }
1368 return TRUE;
1369 }
1370
1371 \f
1372 /* The XCOFF reloc table. Actually, XCOFF relocations specify the
1373 bitsize and whether they are signed or not, along with a
1374 conventional type. This table is for the types, which are used for
1375 different algorithms for putting in the reloc. Many of these
1376 relocs need special_function entries, which I have not written. */
1377
1378 reloc_howto_type xcoff64_howto_table[] =
1379 {
1380 /* Standard 64 bit relocation. */
1381 HOWTO (R_POS, /* type */
1382 0, /* rightshift */
1383 4, /* size (0 = byte, 1 = short, 2 = long) */
1384 64, /* bitsize */
1385 FALSE, /* pc_relative */
1386 0, /* bitpos */
1387 complain_overflow_bitfield, /* complain_on_overflow */
1388 0, /* special_function */
1389 "R_POS_64", /* name */
1390 TRUE, /* partial_inplace */
1391 MINUS_ONE, /* src_mask */
1392 MINUS_ONE, /* dst_mask */
1393 FALSE), /* pcrel_offset */
1394
1395 /* 64 bit relocation, but store negative value. */
1396 HOWTO (R_NEG, /* type */
1397 0, /* rightshift */
1398 -4, /* size (0 = byte, 1 = short, 2 = long) */
1399 64, /* bitsize */
1400 FALSE, /* pc_relative */
1401 0, /* bitpos */
1402 complain_overflow_bitfield, /* complain_on_overflow */
1403 0, /* special_function */
1404 "R_NEG", /* name */
1405 TRUE, /* partial_inplace */
1406 MINUS_ONE, /* src_mask */
1407 MINUS_ONE, /* dst_mask */
1408 FALSE), /* pcrel_offset */
1409
1410 /* 32 bit PC relative relocation. */
1411 HOWTO (R_REL, /* type */
1412 0, /* rightshift */
1413 2, /* size (0 = byte, 1 = short, 2 = long) */
1414 32, /* bitsize */
1415 TRUE, /* pc_relative */
1416 0, /* bitpos */
1417 complain_overflow_signed, /* complain_on_overflow */
1418 0, /* special_function */
1419 "R_REL", /* name */
1420 TRUE, /* partial_inplace */
1421 0xffffffff, /* src_mask */
1422 0xffffffff, /* dst_mask */
1423 FALSE), /* pcrel_offset */
1424
1425 /* 16 bit TOC relative relocation. */
1426 HOWTO (R_TOC, /* type */
1427 0, /* rightshift */
1428 1, /* size (0 = byte, 1 = short, 2 = long) */
1429 16, /* bitsize */
1430 FALSE, /* pc_relative */
1431 0, /* bitpos */
1432 complain_overflow_bitfield, /* complain_on_overflow */
1433 0, /* special_function */
1434 "R_TOC", /* name */
1435 TRUE, /* partial_inplace */
1436 0xffff, /* src_mask */
1437 0xffff, /* dst_mask */
1438 FALSE), /* pcrel_offset */
1439
1440 /* I don't really know what this is. */
1441 HOWTO (R_RTB, /* type */
1442 1, /* rightshift */
1443 2, /* size (0 = byte, 1 = short, 2 = long) */
1444 32, /* bitsize */
1445 FALSE, /* pc_relative */
1446 0, /* bitpos */
1447 complain_overflow_bitfield, /* complain_on_overflow */
1448 0, /* special_function */
1449 "R_RTB", /* name */
1450 TRUE, /* partial_inplace */
1451 0xffffffff, /* src_mask */
1452 0xffffffff, /* dst_mask */
1453 FALSE), /* pcrel_offset */
1454
1455 /* External TOC relative symbol. */
1456 HOWTO (R_GL, /* type */
1457 0, /* rightshift */
1458 1, /* size (0 = byte, 1 = short, 2 = long) */
1459 16, /* bitsize */
1460 FALSE, /* pc_relative */
1461 0, /* bitpos */
1462 complain_overflow_bitfield, /* complain_on_overflow */
1463 0, /* special_function */
1464 "R_GL", /* name */
1465 TRUE, /* partial_inplace */
1466 0xffff, /* src_mask */
1467 0xffff, /* dst_mask */
1468 FALSE), /* pcrel_offset */
1469
1470 /* Local TOC relative symbol. */
1471 HOWTO (R_TCL, /* type */
1472 0, /* rightshift */
1473 1, /* size (0 = byte, 1 = short, 2 = long) */
1474 16, /* bitsize */
1475 FALSE, /* pc_relative */
1476 0, /* bitpos */
1477 complain_overflow_bitfield, /* complain_on_overflow */
1478 0, /* special_function */
1479 "R_TCL", /* name */
1480 TRUE, /* partial_inplace */
1481 0xffff, /* src_mask */
1482 0xffff, /* dst_mask */
1483 FALSE), /* pcrel_offset */
1484
1485 EMPTY_HOWTO (7),
1486
1487 /* Non modifiable absolute branch. */
1488 HOWTO (R_BA, /* type */
1489 0, /* rightshift */
1490 2, /* size (0 = byte, 1 = short, 2 = long) */
1491 26, /* bitsize */
1492 FALSE, /* pc_relative */
1493 0, /* bitpos */
1494 complain_overflow_bitfield, /* complain_on_overflow */
1495 0, /* special_function */
1496 "R_BA_26", /* name */
1497 TRUE, /* partial_inplace */
1498 0x03fffffc, /* src_mask */
1499 0x03fffffc, /* dst_mask */
1500 FALSE), /* pcrel_offset */
1501
1502 EMPTY_HOWTO (9),
1503
1504 /* Non modifiable relative branch. */
1505 HOWTO (R_BR, /* type */
1506 0, /* rightshift */
1507 2, /* size (0 = byte, 1 = short, 2 = long) */
1508 26, /* bitsize */
1509 TRUE, /* pc_relative */
1510 0, /* bitpos */
1511 complain_overflow_signed, /* complain_on_overflow */
1512 0, /* special_function */
1513 "R_BR", /* name */
1514 TRUE, /* partial_inplace */
1515 0x03fffffc, /* src_mask */
1516 0x03fffffc, /* dst_mask */
1517 FALSE), /* pcrel_offset */
1518
1519 EMPTY_HOWTO (0xb),
1520
1521 /* Indirect load. */
1522 HOWTO (R_RL, /* type */
1523 0, /* rightshift */
1524 1, /* size (0 = byte, 1 = short, 2 = long) */
1525 16, /* bitsize */
1526 FALSE, /* pc_relative */
1527 0, /* bitpos */
1528 complain_overflow_bitfield, /* complain_on_overflow */
1529 0, /* special_function */
1530 "R_RL", /* name */
1531 TRUE, /* partial_inplace */
1532 0xffff, /* src_mask */
1533 0xffff, /* dst_mask */
1534 FALSE), /* pcrel_offset */
1535
1536 /* Load address. */
1537 HOWTO (R_RLA, /* type */
1538 0, /* rightshift */
1539 1, /* size (0 = byte, 1 = short, 2 = long) */
1540 16, /* bitsize */
1541 FALSE, /* pc_relative */
1542 0, /* bitpos */
1543 complain_overflow_bitfield, /* complain_on_overflow */
1544 0, /* special_function */
1545 "R_RLA", /* name */
1546 TRUE, /* partial_inplace */
1547 0xffff, /* src_mask */
1548 0xffff, /* dst_mask */
1549 FALSE), /* pcrel_offset */
1550
1551 EMPTY_HOWTO (0xe),
1552
1553 /* Non-relocating reference. */
1554 HOWTO (R_REF, /* type */
1555 0, /* rightshift */
1556 2, /* size (0 = byte, 1 = short, 2 = long) */
1557 32, /* bitsize */
1558 FALSE, /* pc_relative */
1559 0, /* bitpos */
1560 complain_overflow_dont, /* complain_on_overflow */
1561 0, /* special_function */
1562 "R_REF", /* name */
1563 FALSE, /* partial_inplace */
1564 0, /* src_mask */
1565 0, /* dst_mask */
1566 FALSE), /* pcrel_offset */
1567
1568 EMPTY_HOWTO (0x10),
1569 EMPTY_HOWTO (0x11),
1570
1571 /* TOC relative indirect load. */
1572 HOWTO (R_TRL, /* type */
1573 0, /* rightshift */
1574 1, /* size (0 = byte, 1 = short, 2 = long) */
1575 16, /* bitsize */
1576 FALSE, /* pc_relative */
1577 0, /* bitpos */
1578 complain_overflow_bitfield, /* complain_on_overflow */
1579 0, /* special_function */
1580 "R_TRL", /* name */
1581 TRUE, /* partial_inplace */
1582 0xffff, /* src_mask */
1583 0xffff, /* dst_mask */
1584 FALSE), /* pcrel_offset */
1585
1586 /* TOC relative load address. */
1587 HOWTO (R_TRLA, /* type */
1588 0, /* rightshift */
1589 1, /* size (0 = byte, 1 = short, 2 = long) */
1590 16, /* bitsize */
1591 FALSE, /* pc_relative */
1592 0, /* bitpos */
1593 complain_overflow_bitfield, /* complain_on_overflow */
1594 0, /* special_function */
1595 "R_TRLA", /* name */
1596 TRUE, /* partial_inplace */
1597 0xffff, /* src_mask */
1598 0xffff, /* dst_mask */
1599 FALSE), /* pcrel_offset */
1600
1601 /* Modifiable relative branch. */
1602 HOWTO (R_RRTBI, /* type */
1603 1, /* rightshift */
1604 2, /* size (0 = byte, 1 = short, 2 = long) */
1605 32, /* bitsize */
1606 FALSE, /* pc_relative */
1607 0, /* bitpos */
1608 complain_overflow_bitfield, /* complain_on_overflow */
1609 0, /* special_function */
1610 "R_RRTBI", /* name */
1611 TRUE, /* partial_inplace */
1612 0xffffffff, /* src_mask */
1613 0xffffffff, /* dst_mask */
1614 FALSE), /* pcrel_offset */
1615
1616 /* Modifiable absolute branch. */
1617 HOWTO (R_RRTBA, /* type */
1618 1, /* rightshift */
1619 2, /* size (0 = byte, 1 = short, 2 = long) */
1620 32, /* bitsize */
1621 FALSE, /* pc_relative */
1622 0, /* bitpos */
1623 complain_overflow_bitfield, /* complain_on_overflow */
1624 0, /* special_function */
1625 "R_RRTBA", /* name */
1626 TRUE, /* partial_inplace */
1627 0xffffffff, /* src_mask */
1628 0xffffffff, /* dst_mask */
1629 FALSE), /* pcrel_offset */
1630
1631 /* Modifiable call absolute indirect. */
1632 HOWTO (R_CAI, /* type */
1633 0, /* rightshift */
1634 1, /* size (0 = byte, 1 = short, 2 = long) */
1635 16, /* bitsize */
1636 FALSE, /* pc_relative */
1637 0, /* bitpos */
1638 complain_overflow_bitfield, /* complain_on_overflow */
1639 0, /* special_function */
1640 "R_CAI", /* name */
1641 TRUE, /* partial_inplace */
1642 0xffff, /* src_mask */
1643 0xffff, /* dst_mask */
1644 FALSE), /* pcrel_offset */
1645
1646 /* Modifiable call relative. */
1647 HOWTO (R_CREL, /* type */
1648 0, /* rightshift */
1649 1, /* size (0 = byte, 1 = short, 2 = long) */
1650 16, /* bitsize */
1651 FALSE, /* pc_relative */
1652 0, /* bitpos */
1653 complain_overflow_bitfield, /* complain_on_overflow */
1654 0, /* special_function */
1655 "R_CREL", /* name */
1656 TRUE, /* partial_inplace */
1657 0xffff, /* src_mask */
1658 0xffff, /* dst_mask */
1659 FALSE), /* pcrel_offset */
1660
1661 /* Modifiable branch absolute. */
1662 HOWTO (R_RBA, /* type */
1663 0, /* rightshift */
1664 2, /* size (0 = byte, 1 = short, 2 = long) */
1665 26, /* bitsize */
1666 FALSE, /* pc_relative */
1667 0, /* bitpos */
1668 complain_overflow_bitfield, /* complain_on_overflow */
1669 0, /* special_function */
1670 "R_RBA", /* name */
1671 TRUE, /* partial_inplace */
1672 0x03fffffc, /* src_mask */
1673 0x03fffffc, /* dst_mask */
1674 FALSE), /* pcrel_offset */
1675
1676 /* Modifiable branch absolute. */
1677 HOWTO (R_RBAC, /* type */
1678 0, /* rightshift */
1679 2, /* size (0 = byte, 1 = short, 2 = long) */
1680 32, /* bitsize */
1681 FALSE, /* pc_relative */
1682 0, /* bitpos */
1683 complain_overflow_bitfield, /* complain_on_overflow */
1684 0, /* special_function */
1685 "R_RBAC", /* name */
1686 TRUE, /* partial_inplace */
1687 0xffffffff, /* src_mask */
1688 0xffffffff, /* dst_mask */
1689 FALSE), /* pcrel_offset */
1690
1691 /* Modifiable branch relative. */
1692 HOWTO (R_RBR, /* type */
1693 0, /* rightshift */
1694 2, /* size (0 = byte, 1 = short, 2 = long) */
1695 26, /* bitsize */
1696 FALSE, /* pc_relative */
1697 0, /* bitpos */
1698 complain_overflow_signed, /* complain_on_overflow */
1699 0, /* special_function */
1700 "R_RBR_26", /* name */
1701 TRUE, /* partial_inplace */
1702 0x03fffffc, /* src_mask */
1703 0x03fffffc, /* dst_mask */
1704 FALSE), /* pcrel_offset */
1705
1706 /* Modifiable branch absolute. */
1707 HOWTO (R_RBRC, /* type */
1708 0, /* rightshift */
1709 1, /* size (0 = byte, 1 = short, 2 = long) */
1710 16, /* bitsize */
1711 FALSE, /* pc_relative */
1712 0, /* bitpos */
1713 complain_overflow_bitfield, /* complain_on_overflow */
1714 0, /* special_function */
1715 "R_RBRC", /* name */
1716 TRUE, /* partial_inplace */
1717 0xffff, /* src_mask */
1718 0xffff, /* dst_mask */
1719 FALSE), /* pcrel_offset */
1720
1721 HOWTO (R_POS, /* type */
1722 0, /* rightshift */
1723 2, /* size (0 = byte, 1 = short, 2 = long) */
1724 32, /* bitsize */
1725 FALSE, /* pc_relative */
1726 0, /* bitpos */
1727 complain_overflow_bitfield, /* complain_on_overflow */
1728 0, /* special_function */
1729 "R_POS_32", /* name */
1730 TRUE, /* partial_inplace */
1731 0xffffffff, /* src_mask */
1732 0xffffffff, /* dst_mask */
1733 FALSE), /* pcrel_offset */
1734
1735 /* 16 bit Non modifiable absolute branch. */
1736 HOWTO (R_BA, /* type */
1737 0, /* rightshift */
1738 1, /* size (0 = byte, 1 = short, 2 = long) */
1739 16, /* bitsize */
1740 FALSE, /* pc_relative */
1741 0, /* bitpos */
1742 complain_overflow_bitfield, /* complain_on_overflow */
1743 0, /* special_function */
1744 "R_BA_16", /* name */
1745 TRUE, /* partial_inplace */
1746 0xfffc, /* src_mask */
1747 0xfffc, /* dst_mask */
1748 FALSE), /* pcrel_offset */
1749
1750 /* Modifiable branch relative. */
1751 HOWTO (R_RBR, /* type */
1752 0, /* rightshift */
1753 1, /* size (0 = byte, 1 = short, 2 = long) */
1754 16, /* bitsize */
1755 FALSE, /* pc_relative */
1756 0, /* bitpos */
1757 complain_overflow_signed, /* complain_on_overflow */
1758 0, /* special_function */
1759 "R_RBR_16", /* name */
1760 TRUE, /* partial_inplace */
1761 0xffff, /* src_mask */
1762 0xffff, /* dst_mask */
1763 FALSE), /* pcrel_offset */
1764
1765 /* Modifiable branch absolute. */
1766 HOWTO (R_RBA, /* type */
1767 0, /* rightshift */
1768 1, /* size (0 = byte, 1 = short, 2 = long) */
1769 16, /* bitsize */
1770 FALSE, /* pc_relative */
1771 0, /* bitpos */
1772 complain_overflow_bitfield, /* complain_on_overflow */
1773 0, /* special_function */
1774 "R_RBA_16", /* name */
1775 TRUE, /* partial_inplace */
1776 0xffff, /* src_mask */
1777 0xffff, /* dst_mask */
1778 FALSE), /* pcrel_offset */
1779
1780 };
1781
1782 void
1783 xcoff64_rtype2howto (relent, internal)
1784 arelent *relent;
1785 struct internal_reloc *internal;
1786 {
1787 if (internal->r_type > R_RBRC)
1788 abort ();
1789
1790 /* Default howto layout works most of the time */
1791 relent->howto = &xcoff64_howto_table[internal->r_type];
1792
1793 /* Special case some 16 bit reloc */
1794 if (15 == (internal->r_size & 0x3f))
1795 {
1796 if (R_BA == internal->r_type)
1797 relent->howto = &xcoff64_howto_table[0x1d];
1798 else if (R_RBR == internal->r_type)
1799 relent->howto = &xcoff64_howto_table[0x1e];
1800 else if (R_RBA == internal->r_type)
1801 relent->howto = &xcoff64_howto_table[0x1f];
1802 }
1803 /* Special case 32 bit */
1804 else if (31 == (internal->r_size & 0x3f))
1805 {
1806 if (R_POS == internal->r_type)
1807 relent->howto = &xcoff64_howto_table[0x1c];
1808 }
1809
1810 /* The r_size field of an XCOFF reloc encodes the bitsize of the
1811 relocation, as well as indicating whether it is signed or not.
1812 Doublecheck that the relocation information gathered from the
1813 type matches this information. The bitsize is not significant
1814 for R_REF relocs. */
1815 if (relent->howto->dst_mask != 0
1816 && (relent->howto->bitsize
1817 != ((unsigned int) internal->r_size & 0x3f) + 1))
1818 abort ();
1819 }
1820
1821 reloc_howto_type *
1822 xcoff64_reloc_type_lookup (abfd, code)
1823 bfd *abfd ATTRIBUTE_UNUSED;
1824 bfd_reloc_code_real_type code;
1825 {
1826 switch (code)
1827 {
1828 case BFD_RELOC_PPC_B26:
1829 return &xcoff64_howto_table[0xa];
1830 case BFD_RELOC_PPC_BA16:
1831 return &xcoff64_howto_table[0x1d];
1832 case BFD_RELOC_PPC_BA26:
1833 return &xcoff64_howto_table[8];
1834 case BFD_RELOC_PPC_TOC16:
1835 return &xcoff64_howto_table[3];
1836 case BFD_RELOC_32:
1837 case BFD_RELOC_CTOR:
1838 return &xcoff64_howto_table[0x1c];
1839 case BFD_RELOC_64:
1840 return &xcoff64_howto_table[0];
1841 default:
1842 return NULL;
1843 }
1844 }
1845
1846 /* Read in the armap of an XCOFF archive. */
1847
1848 static bfd_boolean
1849 xcoff64_slurp_armap (abfd)
1850 bfd *abfd;
1851 {
1852 file_ptr off;
1853 size_t namlen;
1854 bfd_size_type sz, amt;
1855 bfd_byte *contents, *cend;
1856 bfd_vma c, i;
1857 carsym *arsym;
1858 bfd_byte *p;
1859 file_ptr pos;
1860
1861 /* This is for the new format. */
1862 struct xcoff_ar_hdr_big hdr;
1863
1864 if (xcoff_ardata (abfd) == NULL)
1865 {
1866 bfd_has_map (abfd) = FALSE;
1867 return TRUE;
1868 }
1869
1870 off = bfd_scan_vma (xcoff_ardata_big (abfd)->symoff64,
1871 (const char **) NULL, 10);
1872 if (off == 0)
1873 {
1874 bfd_has_map (abfd) = FALSE;
1875 return TRUE;
1876 }
1877
1878 if (bfd_seek (abfd, off, SEEK_SET) != 0)
1879 return FALSE;
1880
1881 /* The symbol table starts with a normal archive header. */
1882 if (bfd_bread ((PTR) &hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd)
1883 != SIZEOF_AR_HDR_BIG)
1884 return FALSE;
1885
1886 /* Skip the name (normally empty). */
1887 namlen = strtol (hdr.namlen, (char **) NULL, 10);
1888 pos = ((namlen + 1) & ~(size_t) 1) + SXCOFFARFMAG;
1889 if (bfd_seek (abfd, pos, SEEK_CUR) != 0)
1890 return FALSE;
1891
1892 sz = bfd_scan_vma (hdr.size, (const char **) NULL, 10);
1893
1894 /* Read in the entire symbol table. */
1895 contents = (bfd_byte *) bfd_alloc (abfd, sz);
1896 if (contents == NULL)
1897 return FALSE;
1898 if (bfd_bread ((PTR) contents, sz, abfd) != sz)
1899 return FALSE;
1900
1901 /* The symbol table starts with an eight byte count. */
1902 c = H_GET_64 (abfd, contents);
1903
1904 if (c * 8 >= sz)
1905 {
1906 bfd_set_error (bfd_error_bad_value);
1907 return FALSE;
1908 }
1909 amt = c;
1910 amt *= sizeof (carsym);
1911 bfd_ardata (abfd)->symdefs = (carsym *) bfd_alloc (abfd, amt);
1912 if (bfd_ardata (abfd)->symdefs == NULL)
1913 return FALSE;
1914
1915 /* After the count comes a list of eight byte file offsets. */
1916 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8;
1917 i < c;
1918 ++i, ++arsym, p += 8)
1919 arsym->file_offset = H_GET_64 (abfd, p);
1920
1921 /* After the file offsets come null terminated symbol names. */
1922 cend = contents + sz;
1923 for (i = 0, arsym = bfd_ardata (abfd)->symdefs;
1924 i < c;
1925 ++i, ++arsym, p += strlen ((char *) p) + 1)
1926 {
1927 if (p >= cend)
1928 {
1929 bfd_set_error (bfd_error_bad_value);
1930 return FALSE;
1931 }
1932 arsym->name = (char *) p;
1933 }
1934
1935 bfd_ardata (abfd)->symdef_count = c;
1936 bfd_has_map (abfd) = TRUE;
1937
1938 return TRUE;
1939 }
1940
1941
1942 /* See if this is an NEW XCOFF archive. */
1943
1944 static const bfd_target *
1945 xcoff64_archive_p (abfd)
1946 bfd *abfd;
1947 {
1948 struct artdata *tdata_hold;
1949 char magic[SXCOFFARMAG];
1950 /* This is the new format. */
1951 struct xcoff_ar_file_hdr_big hdr;
1952 bfd_size_type amt = SXCOFFARMAG;
1953
1954 if (bfd_bread ((PTR) magic, amt, abfd) != amt)
1955 {
1956 if (bfd_get_error () != bfd_error_system_call)
1957 bfd_set_error (bfd_error_wrong_format);
1958 return NULL;
1959 }
1960
1961 if (strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0)
1962 {
1963 bfd_set_error (bfd_error_wrong_format);
1964 return NULL;
1965 }
1966
1967 /* Copy over the magic string. */
1968 memcpy (hdr.magic, magic, SXCOFFARMAG);
1969
1970 /* Now read the rest of the file header. */
1971 amt = SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG;
1972 if (bfd_bread ((PTR) &hdr.memoff, amt, abfd) != amt)
1973 {
1974 if (bfd_get_error () != bfd_error_system_call)
1975 bfd_set_error (bfd_error_wrong_format);
1976 return NULL;
1977 }
1978
1979 tdata_hold = bfd_ardata (abfd);
1980
1981 amt = sizeof (struct artdata);
1982 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
1983 if (bfd_ardata (abfd) == (struct artdata *) NULL)
1984 goto error_ret_restore;
1985
1986 bfd_ardata (abfd)->cache = NULL;
1987 bfd_ardata (abfd)->archive_head = NULL;
1988 bfd_ardata (abfd)->symdefs = NULL;
1989 bfd_ardata (abfd)->extended_names = NULL;
1990 bfd_ardata (abfd)->first_file_filepos = bfd_scan_vma (hdr.firstmemoff,
1991 (const char **) NULL,
1992 10);
1993
1994 amt = SIZEOF_AR_FILE_HDR_BIG;
1995 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
1996 if (bfd_ardata (abfd)->tdata == NULL)
1997 goto error_ret;
1998
1999 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG);
2000
2001 if (! xcoff64_slurp_armap (abfd))
2002 {
2003 error_ret:
2004 bfd_release (abfd, bfd_ardata (abfd));
2005 error_ret_restore:
2006 bfd_ardata (abfd) = tdata_hold;
2007 return NULL;
2008 }
2009
2010 return abfd->xvec;
2011 }
2012
2013
2014 /* Open the next element in an XCOFF archive. */
2015
2016 static bfd *
2017 xcoff64_openr_next_archived_file (archive, last_file)
2018 bfd *archive;
2019 bfd *last_file;
2020 {
2021 bfd_vma filestart;
2022
2023 if ((xcoff_ardata (archive) == NULL)
2024 || ! xcoff_big_format_p (archive))
2025 {
2026 bfd_set_error (bfd_error_invalid_operation);
2027 return NULL;
2028 }
2029
2030 if (last_file == NULL)
2031 {
2032 filestart = bfd_ardata (archive)->first_file_filepos;
2033 }
2034 else
2035 {
2036 filestart = bfd_scan_vma (arch_xhdr_big (last_file)->nextoff,
2037 (const char **) NULL, 10);
2038 }
2039
2040 if (filestart == 0
2041 || filestart == bfd_scan_vma (xcoff_ardata_big (archive)->memoff,
2042 (const char **) NULL, 10)
2043 || filestart == bfd_scan_vma (xcoff_ardata_big (archive)->symoff,
2044 (const char **) NULL, 10))
2045 {
2046 bfd_set_error (bfd_error_no_more_archived_files);
2047 return NULL;
2048 }
2049
2050 return _bfd_get_elt_at_filepos (archive, (file_ptr) filestart);
2051 }
2052
2053 /* We can't use the usual coff_sizeof_headers routine, because AIX
2054 always uses an a.out header. */
2055
2056 static int
2057 xcoff64_sizeof_headers (abfd, reloc)
2058 bfd *abfd;
2059 bfd_boolean reloc ATTRIBUTE_UNUSED;
2060 {
2061 int size;
2062
2063 size = bfd_coff_filhsz (abfd);
2064
2065 /* Don't think the small aout header can be used since some of the
2066 old elements have been reordered past the end of the old coff
2067 small aout size. */
2068
2069 if (xcoff_data (abfd)->full_aouthdr)
2070 size += bfd_coff_aoutsz (abfd);
2071
2072 size += abfd->section_count * bfd_coff_scnhsz (abfd);
2073 return size;
2074 }
2075
2076
2077
2078 static asection *
2079 xcoff64_create_csect_from_smclas (abfd, aux, symbol_name)
2080 bfd *abfd;
2081 union internal_auxent *aux;
2082 const char *symbol_name;
2083 {
2084 asection *return_value = NULL;
2085
2086 /* Changes from 32 :
2087 .sv == 8, is only for 32 bit programs
2088 .ti == 12 and .tb == 13 are now reserved. */
2089 static const char *names[19] =
2090 {
2091 ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo",
2092 NULL, ".bs", ".ds", ".uc", NULL, NULL, NULL, ".tc0",
2093 ".td", ".sv64", ".sv3264"
2094 };
2095
2096 if ((19 >= aux->x_csect.x_smclas)
2097 && (NULL != names[aux->x_csect.x_smclas]))
2098 {
2099
2100 return_value = bfd_make_section_anyway
2101 (abfd, names[aux->x_csect.x_smclas]);
2102
2103 }
2104 else
2105 {
2106 (*_bfd_error_handler)
2107 (_("%s: symbol `%s' has unrecognized smclas %d"),
2108 bfd_archive_filename (abfd), symbol_name, aux->x_csect.x_smclas);
2109 bfd_set_error (bfd_error_bad_value);
2110 }
2111
2112 return return_value;
2113 }
2114
2115 static bfd_boolean
2116 xcoff64_is_lineno_count_overflow (abfd, value)
2117 bfd *abfd ATTRIBUTE_UNUSED;
2118 bfd_vma value ATTRIBUTE_UNUSED;
2119 {
2120 return FALSE;
2121 }
2122
2123 static bfd_boolean
2124 xcoff64_is_reloc_count_overflow (abfd, value)
2125 bfd *abfd ATTRIBUTE_UNUSED;
2126 bfd_vma value ATTRIBUTE_UNUSED;
2127 {
2128 return FALSE;
2129 }
2130
2131 static bfd_vma
2132 xcoff64_loader_symbol_offset (abfd, ldhdr)
2133 bfd *abfd ATTRIBUTE_UNUSED;
2134 struct internal_ldhdr *ldhdr;
2135 {
2136 return (ldhdr->l_symoff);
2137 }
2138
2139 static bfd_vma
2140 xcoff64_loader_reloc_offset (abfd, ldhdr)
2141 bfd *abfd ATTRIBUTE_UNUSED;
2142 struct internal_ldhdr *ldhdr;
2143 {
2144 return (ldhdr->l_rldoff);
2145 }
2146
2147 static bfd_boolean
2148 xcoff64_bad_format_hook (abfd, filehdr)
2149 bfd * abfd;
2150 PTR filehdr;
2151 {
2152 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2153
2154 /* Check flavor first. */
2155 if (bfd_get_flavour (abfd) != bfd_target_xcoff_flavour)
2156 return FALSE;
2157
2158 if (bfd_xcoff_magic_number (abfd) != internal_f->f_magic)
2159 return FALSE;
2160
2161 return TRUE;
2162 }
2163
2164 static bfd_boolean
2165 xcoff64_generate_rtinit (abfd, init, fini, rtld)
2166 bfd *abfd;
2167 const char *init;
2168 const char *fini;
2169 bfd_boolean rtld;
2170 {
2171 bfd_byte filehdr_ext[FILHSZ];
2172 bfd_byte scnhdr_ext[SCNHSZ * 3];
2173 bfd_byte syment_ext[SYMESZ * 10];
2174 bfd_byte reloc_ext[RELSZ * 3];
2175 bfd_byte *data_buffer;
2176 bfd_size_type data_buffer_size;
2177 bfd_byte *string_table, *st_tmp;
2178 bfd_size_type string_table_size;
2179 bfd_vma val;
2180 size_t initsz, finisz;
2181 struct internal_filehdr filehdr;
2182 struct internal_scnhdr text_scnhdr;
2183 struct internal_scnhdr data_scnhdr;
2184 struct internal_scnhdr bss_scnhdr;
2185 struct internal_syment syment;
2186 union internal_auxent auxent;
2187 struct internal_reloc reloc;
2188
2189 char *text_name = ".text";
2190 char *data_name = ".data";
2191 char *bss_name = ".bss";
2192 char *rtinit_name = "__rtinit";
2193 char *rtld_name = "__rtld";
2194
2195 if (! bfd_xcoff_rtinit_size (abfd))
2196 return FALSE;
2197
2198 initsz = (init == NULL ? 0 : 1 + strlen (init));
2199 finisz = (fini == NULL ? 0 : 1 + strlen (fini));
2200
2201 /* File header. */
2202 memset (filehdr_ext, 0, FILHSZ);
2203 memset (&filehdr, 0, sizeof (struct internal_filehdr));
2204 filehdr.f_magic = bfd_xcoff_magic_number (abfd);
2205 filehdr.f_nscns = 3;
2206 filehdr.f_timdat = 0;
2207 filehdr.f_nsyms = 0; /* at least 6, no more than 8 */
2208 filehdr.f_symptr = 0; /* set below */
2209 filehdr.f_opthdr = 0;
2210 filehdr.f_flags = 0;
2211
2212 /* Section headers. */
2213 memset (scnhdr_ext, 0, 3 * SCNHSZ);
2214
2215 /* Text. */
2216 memset (&text_scnhdr, 0, sizeof (struct internal_scnhdr));
2217 memcpy (text_scnhdr.s_name, text_name, strlen (text_name));
2218 text_scnhdr.s_paddr = 0;
2219 text_scnhdr.s_vaddr = 0;
2220 text_scnhdr.s_size = 0;
2221 text_scnhdr.s_scnptr = 0;
2222 text_scnhdr.s_relptr = 0;
2223 text_scnhdr.s_lnnoptr = 0;
2224 text_scnhdr.s_nreloc = 0;
2225 text_scnhdr.s_nlnno = 0;
2226 text_scnhdr.s_flags = STYP_TEXT;
2227
2228 /* Data. */
2229 memset (&data_scnhdr, 0, sizeof (struct internal_scnhdr));
2230 memcpy (data_scnhdr.s_name, data_name, strlen (data_name));
2231 data_scnhdr.s_paddr = 0;
2232 data_scnhdr.s_vaddr = 0;
2233 data_scnhdr.s_size = 0; /* set below */
2234 data_scnhdr.s_scnptr = FILHSZ + 3 * SCNHSZ;
2235 data_scnhdr.s_relptr = 0; /* set below */
2236 data_scnhdr.s_lnnoptr = 0;
2237 data_scnhdr.s_nreloc = 0; /* either 1 or 2 */
2238 data_scnhdr.s_nlnno = 0;
2239 data_scnhdr.s_flags = STYP_DATA;
2240
2241 /* Bss. */
2242 memset (&bss_scnhdr, 0, sizeof (struct internal_scnhdr));
2243 memcpy (bss_scnhdr.s_name, bss_name, strlen (bss_name));
2244 bss_scnhdr.s_paddr = 0; /* set below */
2245 bss_scnhdr.s_vaddr = 0; /* set below */
2246 bss_scnhdr.s_size = 0; /* set below */
2247 bss_scnhdr.s_scnptr = 0;
2248 bss_scnhdr.s_relptr = 0;
2249 bss_scnhdr.s_lnnoptr = 0;
2250 bss_scnhdr.s_nreloc = 0;
2251 bss_scnhdr.s_nlnno = 0;
2252 bss_scnhdr.s_flags = STYP_BSS;
2253
2254 /* .data
2255 0x0000 0x00000000 : rtl
2256 0x0004 0x00000000 :
2257 0x0008 0x00000018 : offset to init, or 0
2258 0x000C 0x00000038 : offset to fini, or 0
2259 0x0010 0x00000010 : size of descriptor
2260 0x0014 0x00000000 : pad
2261 0x0018 0x00000000 : init, needs a reloc
2262 0x001C 0x00000000 :
2263 0x0020 0x00000058 : offset to init name
2264 0x0024 0x00000000 : flags, padded to a word
2265 0x0028 0x00000000 : empty init
2266 0x002C 0x00000000 :
2267 0x0030 0x00000000 :
2268 0x0034 0x00000000 :
2269 0x0038 0x00000000 : fini, needs a reloc
2270 0x003C 0x00000000 :
2271 0x0040 0x00000??? : offset to fini name
2272 0x0044 0x00000000 : flags, padded to a word
2273 0x0048 0x00000000 : empty fini
2274 0x004C 0x00000000 :
2275 0x0050 0x00000000 :
2276 0x0054 0x00000000 :
2277 0x0058 init name
2278 0x0058 + initsz fini name */
2279
2280 data_buffer_size = 0x0058 + initsz + finisz;
2281 data_buffer_size = (data_buffer_size + 7) &~ (bfd_size_type) 7;
2282 data_buffer = NULL;
2283 data_buffer = (bfd_byte *) bfd_zmalloc (data_buffer_size);
2284 if (data_buffer == NULL)
2285 return FALSE;
2286
2287 if (initsz)
2288 {
2289 val = 0x18;
2290 bfd_put_32 (abfd, val, &data_buffer[0x08]);
2291 val = 0x58;
2292 bfd_put_32 (abfd, val, &data_buffer[0x20]);
2293 memcpy (&data_buffer[val], init, initsz);
2294 }
2295
2296 if (finisz)
2297 {
2298 val = 0x38;
2299 bfd_put_32 (abfd, val, &data_buffer[0x0C]);
2300 val = 0x58 + initsz;
2301 bfd_put_32 (abfd, val, &data_buffer[0x40]);
2302 memcpy (&data_buffer[val], fini, finisz);
2303 }
2304
2305 val = 0x10;
2306 bfd_put_32 (abfd, val, &data_buffer[0x10]);
2307 data_scnhdr.s_size = data_buffer_size;
2308 bss_scnhdr.s_paddr = bss_scnhdr.s_vaddr = data_scnhdr.s_size;
2309
2310 /* String table. */
2311 string_table_size = 4;
2312 string_table_size += strlen (data_name) + 1;
2313 string_table_size += strlen (rtinit_name) + 1;
2314 string_table_size += initsz;
2315 string_table_size += finisz;
2316 if (rtld)
2317 string_table_size += strlen (rtld_name) + 1;
2318
2319 string_table = (bfd_byte *) bfd_zmalloc (string_table_size);
2320 if (string_table == NULL)
2321 return FALSE;
2322
2323 val = string_table_size;
2324 bfd_put_32 (abfd, val, &string_table[0]);
2325 st_tmp = string_table + 4;
2326
2327 /* symbols
2328 0. .data csect
2329 2. __rtinit
2330 4. init function
2331 6. fini function
2332 8. __rtld */
2333 memset (syment_ext, 0, 10 * SYMESZ);
2334 memset (reloc_ext, 0, 3 * RELSZ);
2335
2336 /* .data csect */
2337 memset (&syment, 0, sizeof (struct internal_syment));
2338 memset (&auxent, 0, sizeof (union internal_auxent));
2339
2340 syment._n._n_n._n_offset = st_tmp - string_table;
2341 memcpy (st_tmp, data_name, strlen (data_name));
2342 st_tmp += strlen (data_name) + 1;
2343
2344 syment.n_scnum = 2;
2345 syment.n_sclass = C_HIDEXT;
2346 syment.n_numaux = 1;
2347 auxent.x_csect.x_scnlen.l = data_buffer_size;
2348 auxent.x_csect.x_smtyp = 3 << 3 | XTY_SD;
2349 auxent.x_csect.x_smclas = XMC_RW;
2350 bfd_coff_swap_sym_out (abfd, &syment,
2351 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2352 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2353 syment.n_numaux,
2354 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2355 filehdr.f_nsyms += 2;
2356
2357 /* __rtinit */
2358 memset (&syment, 0, sizeof (struct internal_syment));
2359 memset (&auxent, 0, sizeof (union internal_auxent));
2360 syment._n._n_n._n_offset = st_tmp - string_table;
2361 memcpy (st_tmp, rtinit_name, strlen (rtinit_name));
2362 st_tmp += strlen (rtinit_name) + 1;
2363
2364 syment.n_scnum = 2;
2365 syment.n_sclass = C_EXT;
2366 syment.n_numaux = 1;
2367 auxent.x_csect.x_smtyp = XTY_LD;
2368 auxent.x_csect.x_smclas = XMC_RW;
2369 bfd_coff_swap_sym_out (abfd, &syment,
2370 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2371 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2372 syment.n_numaux,
2373 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2374 filehdr.f_nsyms += 2;
2375
2376 /* Init. */
2377 if (initsz)
2378 {
2379 memset (&syment, 0, sizeof (struct internal_syment));
2380 memset (&auxent, 0, sizeof (union internal_auxent));
2381
2382 syment._n._n_n._n_offset = st_tmp - string_table;
2383 memcpy (st_tmp, init, initsz);
2384 st_tmp += initsz;
2385
2386 syment.n_sclass = C_EXT;
2387 syment.n_numaux = 1;
2388 bfd_coff_swap_sym_out (abfd, &syment,
2389 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2390 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2391 syment.n_numaux,
2392 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2393 /* Reloc. */
2394 memset (&reloc, 0, sizeof (struct internal_reloc));
2395 reloc.r_vaddr = 0x0018;
2396 reloc.r_symndx = filehdr.f_nsyms;
2397 reloc.r_type = R_POS;
2398 reloc.r_size = 63;
2399 bfd_coff_swap_reloc_out (abfd, &reloc, &reloc_ext[0]);
2400
2401 filehdr.f_nsyms += 2;
2402 data_scnhdr.s_nreloc += 1;
2403 }
2404
2405 /* Finit. */
2406 if (finisz)
2407 {
2408 memset (&syment, 0, sizeof (struct internal_syment));
2409 memset (&auxent, 0, sizeof (union internal_auxent));
2410
2411 syment._n._n_n._n_offset = st_tmp - string_table;
2412 memcpy (st_tmp, fini, finisz);
2413 st_tmp += finisz;
2414
2415 syment.n_sclass = C_EXT;
2416 syment.n_numaux = 1;
2417 bfd_coff_swap_sym_out (abfd, &syment,
2418 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2419 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2420 syment.n_numaux,
2421 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2422
2423 /* Reloc. */
2424 memset (&reloc, 0, sizeof (struct internal_reloc));
2425 reloc.r_vaddr = 0x0038;
2426 reloc.r_symndx = filehdr.f_nsyms;
2427 reloc.r_type = R_POS;
2428 reloc.r_size = 63;
2429 bfd_coff_swap_reloc_out (abfd, &reloc,
2430 &reloc_ext[data_scnhdr.s_nreloc * RELSZ]);
2431
2432 filehdr.f_nsyms += 2;
2433 data_scnhdr.s_nreloc += 1;
2434 }
2435
2436 if (rtld)
2437 {
2438 memset (&syment, 0, sizeof (struct internal_syment));
2439 memset (&auxent, 0, sizeof (union internal_auxent));
2440
2441 syment._n._n_n._n_offset = st_tmp - string_table;
2442 memcpy (st_tmp, rtld_name, strlen (rtld_name));
2443 st_tmp += strlen (rtld_name) + 1;
2444
2445 syment.n_sclass = C_EXT;
2446 syment.n_numaux = 1;
2447 bfd_coff_swap_sym_out (abfd, &syment,
2448 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2449 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2450 syment.n_numaux,
2451 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2452
2453 /* Reloc. */
2454 memset (&reloc, 0, sizeof (struct internal_reloc));
2455 reloc.r_vaddr = 0x0000;
2456 reloc.r_symndx = filehdr.f_nsyms;
2457 reloc.r_type = R_POS;
2458 reloc.r_size = 63;
2459 bfd_coff_swap_reloc_out (abfd, &reloc,
2460 &reloc_ext[data_scnhdr.s_nreloc * RELSZ]);
2461
2462 filehdr.f_nsyms += 2;
2463 data_scnhdr.s_nreloc += 1;
2464
2465 bss_scnhdr.s_size = 0;
2466 }
2467
2468 data_scnhdr.s_relptr = data_scnhdr.s_scnptr + data_buffer_size;
2469 filehdr.f_symptr = data_scnhdr.s_relptr + data_scnhdr.s_nreloc * RELSZ;
2470
2471 bfd_coff_swap_filehdr_out (abfd, &filehdr, filehdr_ext);
2472 bfd_bwrite (filehdr_ext, FILHSZ, abfd);
2473 bfd_coff_swap_scnhdr_out (abfd, &text_scnhdr, &scnhdr_ext[SCNHSZ * 0]);
2474 bfd_coff_swap_scnhdr_out (abfd, &data_scnhdr, &scnhdr_ext[SCNHSZ * 1]);
2475 bfd_coff_swap_scnhdr_out (abfd, &bss_scnhdr, &scnhdr_ext[SCNHSZ * 2]);
2476 bfd_bwrite (scnhdr_ext, 3 * SCNHSZ, abfd);
2477 bfd_bwrite (data_buffer, data_buffer_size, abfd);
2478 bfd_bwrite (reloc_ext, data_scnhdr.s_nreloc * RELSZ, abfd);
2479 bfd_bwrite (syment_ext, filehdr.f_nsyms * SYMESZ, abfd);
2480 bfd_bwrite (string_table, string_table_size, abfd);
2481
2482 free (data_buffer);
2483 data_buffer = NULL;
2484
2485 return TRUE;
2486 }
2487
2488 /* The typical dynamic reloc. */
2489
2490 static reloc_howto_type xcoff64_dynamic_reloc =
2491 HOWTO (0, /* type */
2492 0, /* rightshift */
2493 4, /* size (0 = byte, 1 = short, 2 = long) */
2494 64, /* bitsize */
2495 FALSE, /* pc_relative */
2496 0, /* bitpos */
2497 complain_overflow_bitfield, /* complain_on_overflow */
2498 0, /* special_function */
2499 "R_POS", /* name */
2500 TRUE, /* partial_inplace */
2501 MINUS_ONE, /* src_mask */
2502 MINUS_ONE, /* dst_mask */
2503 FALSE); /* pcrel_offset */
2504
2505 static unsigned long xcoff64_glink_code[10] =
2506 {
2507 0xe9820000, /* ld r12,0(r2) */
2508 0xf8410028, /* std r2,40(r1) */
2509 0xe80c0000, /* ld r0,0(r12) */
2510 0xe84c0008, /* ld r0,8(r12) */
2511 0x7c0903a6, /* mtctr r0 */
2512 0x4e800420, /* bctr */
2513 0x00000000, /* start of traceback table */
2514 0x000ca000, /* traceback table */
2515 0x00000000, /* traceback table */
2516 0x00000018, /* ??? */
2517 };
2518
2519 static const struct xcoff_backend_data_rec bfd_xcoff_backend_data =
2520 {
2521 { /* COFF backend, defined in libcoff.h. */
2522 _bfd_xcoff64_swap_aux_in,
2523 _bfd_xcoff64_swap_sym_in,
2524 _bfd_xcoff64_swap_lineno_in,
2525 _bfd_xcoff64_swap_aux_out,
2526 _bfd_xcoff64_swap_sym_out,
2527 _bfd_xcoff64_swap_lineno_out,
2528 xcoff64_swap_reloc_out,
2529 coff_swap_filehdr_out,
2530 coff_swap_aouthdr_out,
2531 coff_swap_scnhdr_out,
2532 FILHSZ,
2533 AOUTSZ,
2534 SCNHSZ,
2535 SYMESZ,
2536 AUXESZ,
2537 RELSZ,
2538 LINESZ,
2539 FILNMLEN,
2540 TRUE, /* _bfd_coff_long_filenames */
2541 FALSE, /* _bfd_coff_long_section_names */
2542 3, /* _bfd_coff_default_section_alignment_power */
2543 TRUE, /* _bfd_coff_force_symnames_in_strings */
2544 4, /* _bfd_coff_debug_string_prefix_length */
2545 coff_swap_filehdr_in,
2546 coff_swap_aouthdr_in,
2547 coff_swap_scnhdr_in,
2548 xcoff64_swap_reloc_in,
2549 xcoff64_bad_format_hook,
2550 coff_set_arch_mach_hook,
2551 coff_mkobject_hook,
2552 styp_to_sec_flags,
2553 coff_set_alignment_hook,
2554 coff_slurp_symbol_table,
2555 symname_in_debug_hook,
2556 coff_pointerize_aux_hook,
2557 coff_print_aux,
2558 dummy_reloc16_extra_cases,
2559 dummy_reloc16_estimate,
2560 NULL, /* bfd_coff_sym_is_global */
2561 coff_compute_section_file_positions,
2562 NULL, /* _bfd_coff_start_final_link */
2563 xcoff64_ppc_relocate_section,
2564 coff_rtype_to_howto,
2565 NULL, /* _bfd_coff_adjust_symndx */
2566 _bfd_generic_link_add_one_symbol,
2567 coff_link_output_has_begun,
2568 coff_final_link_postscript
2569 },
2570
2571 0x01EF, /* magic number */
2572 bfd_arch_powerpc,
2573 bfd_mach_ppc_620,
2574
2575 /* Function pointers to xcoff specific swap routines. */
2576 xcoff64_swap_ldhdr_in,
2577 xcoff64_swap_ldhdr_out,
2578 xcoff64_swap_ldsym_in,
2579 xcoff64_swap_ldsym_out,
2580 xcoff64_swap_ldrel_in,
2581 xcoff64_swap_ldrel_out,
2582
2583 /* Sizes. */
2584 LDHDRSZ,
2585 LDSYMSZ,
2586 LDRELSZ,
2587 24, /* _xcoff_function_descriptor_size */
2588 0, /* _xcoff_small_aout_header_size */
2589
2590 /* Versions. */
2591 2, /* _xcoff_ldhdr_version */
2592
2593 _bfd_xcoff64_put_symbol_name,
2594 _bfd_xcoff64_put_ldsymbol_name,
2595 &xcoff64_dynamic_reloc,
2596 xcoff64_create_csect_from_smclas,
2597
2598 /* Lineno and reloc count overflow. */
2599 xcoff64_is_lineno_count_overflow,
2600 xcoff64_is_reloc_count_overflow,
2601
2602 xcoff64_loader_symbol_offset,
2603 xcoff64_loader_reloc_offset,
2604
2605 /* glink. */
2606 &xcoff64_glink_code[0],
2607 40, /* _xcoff_glink_size */
2608
2609 /* rtinit. */
2610 88, /* _xcoff_rtinit_size */
2611 xcoff64_generate_rtinit,
2612 };
2613
2614 /* The transfer vector that leads the outside world to all of the above. */
2615 const bfd_target rs6000coff64_vec =
2616 {
2617 "aixcoff64-rs6000",
2618 bfd_target_xcoff_flavour,
2619 BFD_ENDIAN_BIG, /* data byte order is big */
2620 BFD_ENDIAN_BIG, /* header byte order is big */
2621
2622 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
2623 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
2624
2625 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
2626 0, /* leading char */
2627 '/', /* ar_pad_char */
2628 15, /* ar_max_namelen */
2629
2630 /* data */
2631 bfd_getb64,
2632 bfd_getb_signed_64,
2633 bfd_putb64,
2634 bfd_getb32,
2635 bfd_getb_signed_32,
2636 bfd_putb32,
2637 bfd_getb16,
2638 bfd_getb_signed_16,
2639 bfd_putb16,
2640
2641 /* hdrs */
2642 bfd_getb64,
2643 bfd_getb_signed_64,
2644 bfd_putb64,
2645 bfd_getb32,
2646 bfd_getb_signed_32,
2647 bfd_putb32,
2648 bfd_getb16,
2649 bfd_getb_signed_16,
2650 bfd_putb16,
2651
2652 { /* bfd_check_format */
2653 _bfd_dummy_target,
2654 coff_object_p,
2655 xcoff64_archive_p,
2656 CORE_FILE_P
2657 },
2658
2659 { /* bfd_set_format */
2660 bfd_false,
2661 coff_mkobject,
2662 _bfd_generic_mkarchive,
2663 bfd_false
2664 },
2665
2666 {/* bfd_write_contents */
2667 bfd_false,
2668 xcoff64_write_object_contents,
2669 _bfd_xcoff_write_archive_contents,
2670 bfd_false
2671 },
2672
2673 /* Generic */
2674 bfd_true,
2675 bfd_true,
2676 coff_new_section_hook,
2677 _bfd_generic_get_section_contents,
2678 _bfd_generic_get_section_contents_in_window,
2679
2680 /* Copy */
2681 _bfd_xcoff_copy_private_bfd_data,
2682 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2683 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true),
2684 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true),
2685 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2686 ((bfd_boolean (*) (bfd *, flagword)) bfd_true),
2687 ((bfd_boolean (*) (bfd *, void * )) bfd_true),
2688
2689 /* Core */
2690 coff_core_file_failing_command,
2691 coff_core_file_failing_signal,
2692 coff_core_file_matches_executable_p,
2693
2694 /* Archive */
2695 xcoff64_slurp_armap,
2696 bfd_false,
2697 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) bfd_false),
2698 bfd_dont_truncate_arname,
2699 _bfd_xcoff_write_armap,
2700 _bfd_xcoff_read_ar_hdr,
2701 xcoff64_openr_next_archived_file,
2702 _bfd_generic_get_elt_at_index,
2703 _bfd_xcoff_stat_arch_elt,
2704 bfd_true,
2705
2706 /* Symbols */
2707 coff_get_symtab_upper_bound,
2708 coff_canonicalize_symtab,
2709 coff_make_empty_symbol,
2710 coff_print_symbol,
2711 coff_get_symbol_info,
2712 _bfd_xcoff_is_local_label_name,
2713 coff_get_lineno,
2714 coff_find_nearest_line,
2715 coff_bfd_make_debug_symbol,
2716 _bfd_generic_read_minisymbols,
2717 _bfd_generic_minisymbol_to_symbol,
2718
2719 /* Reloc */
2720 coff_get_reloc_upper_bound,
2721 coff_canonicalize_reloc,
2722 xcoff64_reloc_type_lookup,
2723
2724 /* Write */
2725 coff_set_arch_mach,
2726 coff_set_section_contents,
2727
2728 /* Link */
2729 xcoff64_sizeof_headers,
2730 bfd_generic_get_relocated_section_contents,
2731 bfd_generic_relax_section,
2732 _bfd_xcoff_bfd_link_hash_table_create,
2733 _bfd_generic_link_hash_table_free,
2734 _bfd_xcoff_bfd_link_add_symbols,
2735 _bfd_generic_link_just_syms,
2736 _bfd_xcoff_bfd_final_link,
2737 _bfd_generic_link_split_section,
2738 bfd_generic_gc_sections,
2739 bfd_generic_merge_sections,
2740 bfd_generic_is_group_section,
2741 bfd_generic_discard_group,
2742
2743 /* Dynamic */
2744 _bfd_xcoff_get_dynamic_symtab_upper_bound,
2745 _bfd_xcoff_canonicalize_dynamic_symtab,
2746 _bfd_nodynamic_get_synthetic_symtab,
2747 _bfd_xcoff_get_dynamic_reloc_upper_bound,
2748 _bfd_xcoff_canonicalize_dynamic_reloc,
2749
2750 /* Opposite endian version, none exists */
2751 NULL,
2752
2753 (void *) &bfd_xcoff_backend_data,
2754 };
2755
2756 extern const bfd_target *xcoff64_core_p
2757 PARAMS ((bfd *));
2758 extern bfd_boolean xcoff64_core_file_matches_executable_p
2759 PARAMS ((bfd *, bfd *));
2760 extern char *xcoff64_core_file_failing_command
2761 PARAMS ((bfd *));
2762 extern int xcoff64_core_file_failing_signal
2763 PARAMS ((bfd *));
2764
2765 /* AIX 5 */
2766 static const struct xcoff_backend_data_rec bfd_xcoff_aix5_backend_data =
2767 {
2768 { /* COFF backend, defined in libcoff.h. */
2769 _bfd_xcoff64_swap_aux_in,
2770 _bfd_xcoff64_swap_sym_in,
2771 _bfd_xcoff64_swap_lineno_in,
2772 _bfd_xcoff64_swap_aux_out,
2773 _bfd_xcoff64_swap_sym_out,
2774 _bfd_xcoff64_swap_lineno_out,
2775 xcoff64_swap_reloc_out,
2776 coff_swap_filehdr_out,
2777 coff_swap_aouthdr_out,
2778 coff_swap_scnhdr_out,
2779 FILHSZ,
2780 AOUTSZ,
2781 SCNHSZ,
2782 SYMESZ,
2783 AUXESZ,
2784 RELSZ,
2785 LINESZ,
2786 FILNMLEN,
2787 TRUE, /* _bfd_coff_long_filenames */
2788 FALSE, /* _bfd_coff_long_section_names */
2789 3, /* _bfd_coff_default_section_alignment_power */
2790 TRUE, /* _bfd_coff_force_symnames_in_strings */
2791 4, /* _bfd_coff_debug_string_prefix_length */
2792 coff_swap_filehdr_in,
2793 coff_swap_aouthdr_in,
2794 coff_swap_scnhdr_in,
2795 xcoff64_swap_reloc_in,
2796 xcoff64_bad_format_hook,
2797 coff_set_arch_mach_hook,
2798 coff_mkobject_hook,
2799 styp_to_sec_flags,
2800 coff_set_alignment_hook,
2801 coff_slurp_symbol_table,
2802 symname_in_debug_hook,
2803 coff_pointerize_aux_hook,
2804 coff_print_aux,
2805 dummy_reloc16_extra_cases,
2806 dummy_reloc16_estimate,
2807 NULL, /* bfd_coff_sym_is_global */
2808 coff_compute_section_file_positions,
2809 NULL, /* _bfd_coff_start_final_link */
2810 xcoff64_ppc_relocate_section,
2811 coff_rtype_to_howto,
2812 NULL, /* _bfd_coff_adjust_symndx */
2813 _bfd_generic_link_add_one_symbol,
2814 coff_link_output_has_begun,
2815 coff_final_link_postscript
2816 },
2817
2818 U64_TOCMAGIC, /* magic number */
2819 bfd_arch_powerpc,
2820 bfd_mach_ppc_620,
2821
2822 /* Function pointers to xcoff specific swap routines. */
2823 xcoff64_swap_ldhdr_in,
2824 xcoff64_swap_ldhdr_out,
2825 xcoff64_swap_ldsym_in,
2826 xcoff64_swap_ldsym_out,
2827 xcoff64_swap_ldrel_in,
2828 xcoff64_swap_ldrel_out,
2829
2830 /* Sizes. */
2831 LDHDRSZ,
2832 LDSYMSZ,
2833 LDRELSZ,
2834 24, /* _xcoff_function_descriptor_size */
2835 0, /* _xcoff_small_aout_header_size */
2836 /* Versions. */
2837 2, /* _xcoff_ldhdr_version */
2838
2839 _bfd_xcoff64_put_symbol_name,
2840 _bfd_xcoff64_put_ldsymbol_name,
2841 &xcoff64_dynamic_reloc,
2842 xcoff64_create_csect_from_smclas,
2843
2844 /* Lineno and reloc count overflow. */
2845 xcoff64_is_lineno_count_overflow,
2846 xcoff64_is_reloc_count_overflow,
2847
2848 xcoff64_loader_symbol_offset,
2849 xcoff64_loader_reloc_offset,
2850
2851 /* glink. */
2852 &xcoff64_glink_code[0],
2853 40, /* _xcoff_glink_size */
2854
2855 /* rtinit. */
2856 88, /* _xcoff_rtinit_size */
2857 xcoff64_generate_rtinit,
2858 };
2859
2860 /* The transfer vector that leads the outside world to all of the above. */
2861 const bfd_target aix5coff64_vec =
2862 {
2863 "aix5coff64-rs6000",
2864 bfd_target_xcoff_flavour,
2865 BFD_ENDIAN_BIG, /* data byte order is big */
2866 BFD_ENDIAN_BIG, /* header byte order is big */
2867
2868 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
2869 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
2870
2871 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
2872 0, /* leading char */
2873 '/', /* ar_pad_char */
2874 15, /* ar_max_namelen */
2875
2876 /* data */
2877 bfd_getb64,
2878 bfd_getb_signed_64,
2879 bfd_putb64,
2880 bfd_getb32,
2881 bfd_getb_signed_32,
2882 bfd_putb32,
2883 bfd_getb16,
2884 bfd_getb_signed_16,
2885 bfd_putb16,
2886
2887 /* hdrs */
2888 bfd_getb64,
2889 bfd_getb_signed_64,
2890 bfd_putb64,
2891 bfd_getb32,
2892 bfd_getb_signed_32,
2893 bfd_putb32,
2894 bfd_getb16,
2895 bfd_getb_signed_16,
2896 bfd_putb16,
2897
2898 { /* bfd_check_format */
2899 _bfd_dummy_target,
2900 coff_object_p,
2901 xcoff64_archive_p,
2902 xcoff64_core_p
2903 },
2904
2905 { /* bfd_set_format */
2906 bfd_false,
2907 coff_mkobject,
2908 _bfd_generic_mkarchive,
2909 bfd_false
2910 },
2911
2912 {/* bfd_write_contents */
2913 bfd_false,
2914 xcoff64_write_object_contents,
2915 _bfd_xcoff_write_archive_contents,
2916 bfd_false
2917 },
2918
2919 /* Generic */
2920 bfd_true,
2921 bfd_true,
2922 coff_new_section_hook,
2923 _bfd_generic_get_section_contents,
2924 _bfd_generic_get_section_contents_in_window,
2925
2926 /* Copy */
2927 _bfd_xcoff_copy_private_bfd_data,
2928 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2929 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true),
2930 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true),
2931 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2932 ((bfd_boolean (*) (bfd *, flagword)) bfd_true),
2933 ((bfd_boolean (*) (bfd *, void * )) bfd_true),
2934
2935 /* Core */
2936 xcoff64_core_file_failing_command,
2937 xcoff64_core_file_failing_signal,
2938 xcoff64_core_file_matches_executable_p,
2939
2940 /* Archive */
2941 xcoff64_slurp_armap,
2942 bfd_false,
2943 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) bfd_false),
2944 bfd_dont_truncate_arname,
2945 _bfd_xcoff_write_armap,
2946 _bfd_xcoff_read_ar_hdr,
2947 xcoff64_openr_next_archived_file,
2948 _bfd_generic_get_elt_at_index,
2949 _bfd_xcoff_stat_arch_elt,
2950 bfd_true,
2951
2952 /* Symbols */
2953 coff_get_symtab_upper_bound,
2954 coff_canonicalize_symtab,
2955 coff_make_empty_symbol,
2956 coff_print_symbol,
2957 coff_get_symbol_info,
2958 _bfd_xcoff_is_local_label_name,
2959 coff_get_lineno,
2960 coff_find_nearest_line,
2961 coff_bfd_make_debug_symbol,
2962 _bfd_generic_read_minisymbols,
2963 _bfd_generic_minisymbol_to_symbol,
2964
2965 /* Reloc */
2966 coff_get_reloc_upper_bound,
2967 coff_canonicalize_reloc,
2968 xcoff64_reloc_type_lookup,
2969
2970 /* Write */
2971 coff_set_arch_mach,
2972 coff_set_section_contents,
2973
2974 /* Link */
2975 xcoff64_sizeof_headers,
2976 bfd_generic_get_relocated_section_contents,
2977 bfd_generic_relax_section,
2978 _bfd_xcoff_bfd_link_hash_table_create,
2979 _bfd_generic_link_hash_table_free,
2980 _bfd_xcoff_bfd_link_add_symbols,
2981 _bfd_generic_link_just_syms,
2982 _bfd_xcoff_bfd_final_link,
2983 _bfd_generic_link_split_section,
2984 bfd_generic_gc_sections,
2985 bfd_generic_merge_sections,
2986 bfd_generic_is_group_section,
2987 bfd_generic_discard_group,
2988
2989 /* Dynamic */
2990 _bfd_xcoff_get_dynamic_symtab_upper_bound,
2991 _bfd_xcoff_canonicalize_dynamic_symtab,
2992 _bfd_nodynamic_get_synthetic_symtab,
2993 _bfd_xcoff_get_dynamic_reloc_upper_bound,
2994 _bfd_xcoff_canonicalize_dynamic_reloc,
2995
2996 /* Opposite endian version, none exists. */
2997 NULL,
2998
2999 (void *) & bfd_xcoff_aix5_backend_data,
3000 };
GDB Binutils - Deliverables
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