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* corefile.c (core_init): Use a separate local variable,
[binutils.git] / bfd / coff64-rs6000.c
blob678ba9380b3affdae90363f9193d8c049e2e2860
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->_raw_size;
849
850 /* If this section has no size or is unloadable then the scnptr
851 will be 0 too. */
852 if (current->_raw_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 = bfd_get_section_size_before_reloc (text_sec);
969 internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
970 }
971
972 if (data_sec)
973 {
974 internal_a.dsize = bfd_get_section_size_before_reloc (data_sec);
975 internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
976 }
977
978 if (bss_sec)
979 {
980 internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec);
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
1131 <= input_section->_cooked_size))
1132 {
1133 bfd_byte *pnext;
1134 unsigned long next;
1135
1136 pnext = contents + (rel->r_vaddr - input_section->vma) + 4;
1137 next = bfd_get_32 (input_bfd, pnext);
1138
1139 /* The _ptrgl function is magic. It is used by the AIX compiler to call
1140 a function through a pointer. */
1141 if (h->smclas == XMC_GL || strcmp (h->root.root.string, "._ptrgl") == 0)
1142 {
1143 if (next == 0x4def7b82 /* cror 15,15,15 */
1144 || next == 0x4ffffb82 /* cror 31,31,31 */
1145 || next == 0x60000000) /* ori r0,r0,0 */
1146 bfd_put_32 (input_bfd, 0xe8410028, pnext); /* ld r2,40(r1) */
1147 }
1148 else
1149 {
1150 if (next == 0xe8410028) /* ld r2,40(r1) */
1151 bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */
1152 }
1153 }
1154 else if (NULL != h && bfd_link_hash_undefined == h->root.type)
1155 {
1156 /* Normally, this relocation is against a defined symbol. In the
1157 case where this is a partial link and the output section offset
1158 is greater than 2^25, the linker will return an invalid error
1159 message that the relocation has been truncated. Yes it has been
1160 truncated but no it not important. For this case, disable the
1161 overflow checking. */
1162 howto->complain_on_overflow = complain_overflow_dont;
1163 }
1164
1165 howto->pc_relative = TRUE;
1166 howto->src_mask &= ~3;
1167 howto->dst_mask = howto->src_mask;
1168
1169 /* A PC relative reloc includes the section address. */
1170 addend += input_section->vma;
1171
1172 *relocation = val + addend;
1173 *relocation -= (input_section->output_section->vma
1174 + input_section->output_offset);
1175 return TRUE;
1176 }
1177
1178 /* This is the relocation function for the PowerPC64.
1179 See xcoff_ppc_relocation_section for more information. */
1180
1181 bfd_boolean
1182 xcoff64_ppc_relocate_section (output_bfd, info, input_bfd,
1183 input_section, contents, relocs, syms,
1184 sections)
1185 bfd *output_bfd;
1186 struct bfd_link_info *info;
1187 bfd *input_bfd;
1188 asection *input_section;
1189 bfd_byte *contents;
1190 struct internal_reloc *relocs;
1191 struct internal_syment *syms;
1192 asection **sections;
1193 {
1194 struct internal_reloc *rel;
1195 struct internal_reloc *relend;
1196
1197 rel = relocs;
1198 relend = rel + input_section->reloc_count;
1199 for (; rel < relend; rel++)
1200 {
1201 long symndx;
1202 struct xcoff_link_hash_entry *h;
1203 struct internal_syment *sym;
1204 bfd_vma addend;
1205 bfd_vma val;
1206 struct reloc_howto_struct howto;
1207 bfd_vma relocation;
1208 bfd_vma value_to_relocate;
1209 bfd_vma address;
1210 bfd_byte *location;
1211
1212 /* Relocation type R_REF is a special relocation type which is
1213 merely used to prevent garbage collection from occurring for
1214 the csect including the symbol which it references. */
1215 if (rel->r_type == R_REF)
1216 continue;
1217
1218 /* howto */
1219 howto.type = rel->r_type;
1220 howto.rightshift = 0;
1221 howto.bitsize = (rel->r_size & 0x3f) + 1;
1222 howto.size = howto.bitsize > 16 ? (howto.bitsize > 32 ? 4 : 2) : 1;
1223 howto.pc_relative = FALSE;
1224 howto.bitpos = 0;
1225 howto.complain_on_overflow = (rel->r_size & 0x80
1226 ? complain_overflow_signed
1227 : complain_overflow_bitfield);
1228 howto.special_function = NULL;
1229 howto.name = "internal";
1230 howto.partial_inplace = TRUE;
1231 howto.src_mask = howto.dst_mask = N_ONES (howto.bitsize);
1232 howto.pcrel_offset = FALSE;
1233
1234 /* symbol */
1235 val = 0;
1236 addend = 0;
1237 h = NULL;
1238 sym = NULL;
1239 symndx = rel->r_symndx;
1240
1241 if (-1 != symndx)
1242 {
1243 asection *sec;
1244
1245 h = obj_xcoff_sym_hashes (input_bfd)[symndx];
1246 sym = syms + symndx;
1247 addend = - sym->n_value;
1248
1249 if (NULL == h)
1250 {
1251 sec = sections[symndx];
1252 /* Hack to make sure we use the right TOC anchor value
1253 if this reloc is against the TOC anchor. */
1254 if (sec->name[3] == '0'
1255 && strcmp (sec->name, ".tc0") == 0)
1256 val = xcoff_data (output_bfd)->toc;
1257 else
1258 val = (sec->output_section->vma
1259 + sec->output_offset
1260 + sym->n_value
1261 - sec->vma);
1262 }
1263 else
1264 {
1265 if (h->root.type == bfd_link_hash_defined
1266 || h->root.type == bfd_link_hash_defweak)
1267 {
1268 sec = h->root.u.def.section;
1269 val = (h->root.u.def.value
1270 + sec->output_section->vma
1271 + sec->output_offset);
1272 }
1273 else if (h->root.type == bfd_link_hash_common)
1274 {
1275 sec = h->root.u.c.p->section;
1276 val = (sec->output_section->vma
1277 + sec->output_offset);
1278 }
1279 else if ((0 == (h->flags & (XCOFF_DEF_DYNAMIC | XCOFF_IMPORT)))
1280 && ! info->relocatable)
1281 {
1282 if (! ((*info->callbacks->undefined_symbol)
1283 (info, h->root.root.string, input_bfd, input_section,
1284 rel->r_vaddr - input_section->vma, TRUE)))
1285 return FALSE;
1286
1287 /* Don't try to process the reloc. It can't help, and
1288 it may generate another error. */
1289 continue;
1290 }
1291 }
1292 }
1293
1294 if (rel->r_type >= XCOFF_MAX_CALCULATE_RELOCATION
1295 || !((*xcoff64_calculate_relocation[rel->r_type])
1296 (input_bfd, input_section, output_bfd, rel, sym, &howto, val,
1297 addend, &relocation, contents)))
1298 return FALSE;
1299
1300 /* address */
1301 address = rel->r_vaddr - input_section->vma;
1302 location = contents + address;
1303
1304 if (address > input_section->_raw_size)
1305 abort ();
1306
1307 /* Get the value we are going to relocate. */
1308 if (1 == howto.size)
1309 value_to_relocate = bfd_get_16 (input_bfd, location);
1310 else if (2 == howto.size)
1311 value_to_relocate = bfd_get_32 (input_bfd, location);
1312 else
1313 value_to_relocate = bfd_get_64 (input_bfd, location);
1314
1315 /* overflow.
1316
1317 FIXME: We may drop bits during the addition
1318 which we don't check for. We must either check at every single
1319 operation, which would be tedious, or we must do the computations
1320 in a type larger than bfd_vma, which would be inefficient. */
1321
1322 if ((unsigned int) howto.complain_on_overflow
1323 >= XCOFF_MAX_COMPLAIN_OVERFLOW)
1324 abort ();
1325
1326 if (((*xcoff_complain_overflow[howto.complain_on_overflow])
1327 (input_bfd, value_to_relocate, relocation, &howto)))
1328 {
1329 const char *name;
1330 char buf[SYMNMLEN + 1];
1331 char reloc_type_name[10];
1332
1333 if (symndx == -1)
1334 {
1335 name = "*ABS*";
1336 }
1337 else if (h != NULL)
1338 {
1339 name = h->root.root.string;
1340 }
1341 else
1342 {
1343 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
1344 if (name == NULL)
1345 name = "UNKNOWN";
1346 }
1347 sprintf (reloc_type_name, "0x%02x", rel->r_type);
1348
1349 if (! ((*info->callbacks->reloc_overflow)
1350 (info, name, reloc_type_name, (bfd_vma) 0, input_bfd,
1351 input_section, rel->r_vaddr - input_section->vma)))
1352 return FALSE;
1353 }
1354
1355 /* Add RELOCATION to the right bits of VALUE_TO_RELOCATE. */
1356 value_to_relocate = ((value_to_relocate & ~howto.dst_mask)
1357 | (((value_to_relocate & howto.src_mask)
1358 + relocation) & howto.dst_mask));
1359
1360 /* Put the value back in the object file. */
1361 if (1 == howto.size)
1362 bfd_put_16 (input_bfd, value_to_relocate, location);
1363 else if (2 == howto.size)
1364 bfd_put_32 (input_bfd, value_to_relocate, location);
1365 else
1366 bfd_put_64 (input_bfd, value_to_relocate, location);
1367
1368 }
1369 return TRUE;
1370 }
1371
1372 \f
1373 /* The XCOFF reloc table. Actually, XCOFF relocations specify the
1374 bitsize and whether they are signed or not, along with a
1375 conventional type. This table is for the types, which are used for
1376 different algorithms for putting in the reloc. Many of these
1377 relocs need special_function entries, which I have not written. */
1378
1379 reloc_howto_type xcoff64_howto_table[] =
1380 {
1381 /* Standard 64 bit relocation. */
1382 HOWTO (R_POS, /* type */
1383 0, /* rightshift */
1384 4, /* size (0 = byte, 1 = short, 2 = long) */
1385 64, /* bitsize */
1386 FALSE, /* pc_relative */
1387 0, /* bitpos */
1388 complain_overflow_bitfield, /* complain_on_overflow */
1389 0, /* special_function */
1390 "R_POS_64", /* name */
1391 TRUE, /* partial_inplace */
1392 MINUS_ONE, /* src_mask */
1393 MINUS_ONE, /* dst_mask */
1394 FALSE), /* pcrel_offset */
1395
1396 /* 64 bit relocation, but store negative value. */
1397 HOWTO (R_NEG, /* type */
1398 0, /* rightshift */
1399 -4, /* size (0 = byte, 1 = short, 2 = long) */
1400 64, /* bitsize */
1401 FALSE, /* pc_relative */
1402 0, /* bitpos */
1403 complain_overflow_bitfield, /* complain_on_overflow */
1404 0, /* special_function */
1405 "R_NEG", /* name */
1406 TRUE, /* partial_inplace */
1407 MINUS_ONE, /* src_mask */
1408 MINUS_ONE, /* dst_mask */
1409 FALSE), /* pcrel_offset */
1410
1411 /* 32 bit PC relative relocation. */
1412 HOWTO (R_REL, /* type */
1413 0, /* rightshift */
1414 2, /* size (0 = byte, 1 = short, 2 = long) */
1415 32, /* bitsize */
1416 TRUE, /* pc_relative */
1417 0, /* bitpos */
1418 complain_overflow_signed, /* complain_on_overflow */
1419 0, /* special_function */
1420 "R_REL", /* name */
1421 TRUE, /* partial_inplace */
1422 0xffffffff, /* src_mask */
1423 0xffffffff, /* dst_mask */
1424 FALSE), /* pcrel_offset */
1425
1426 /* 16 bit TOC relative relocation. */
1427 HOWTO (R_TOC, /* type */
1428 0, /* rightshift */
1429 1, /* size (0 = byte, 1 = short, 2 = long) */
1430 16, /* bitsize */
1431 FALSE, /* pc_relative */
1432 0, /* bitpos */
1433 complain_overflow_bitfield, /* complain_on_overflow */
1434 0, /* special_function */
1435 "R_TOC", /* name */
1436 TRUE, /* partial_inplace */
1437 0xffff, /* src_mask */
1438 0xffff, /* dst_mask */
1439 FALSE), /* pcrel_offset */
1440
1441 /* I don't really know what this is. */
1442 HOWTO (R_RTB, /* type */
1443 1, /* rightshift */
1444 2, /* size (0 = byte, 1 = short, 2 = long) */
1445 32, /* bitsize */
1446 FALSE, /* pc_relative */
1447 0, /* bitpos */
1448 complain_overflow_bitfield, /* complain_on_overflow */
1449 0, /* special_function */
1450 "R_RTB", /* name */
1451 TRUE, /* partial_inplace */
1452 0xffffffff, /* src_mask */
1453 0xffffffff, /* dst_mask */
1454 FALSE), /* pcrel_offset */
1455
1456 /* External TOC relative symbol. */
1457 HOWTO (R_GL, /* type */
1458 0, /* rightshift */
1459 1, /* size (0 = byte, 1 = short, 2 = long) */
1460 16, /* bitsize */
1461 FALSE, /* pc_relative */
1462 0, /* bitpos */
1463 complain_overflow_bitfield, /* complain_on_overflow */
1464 0, /* special_function */
1465 "R_GL", /* name */
1466 TRUE, /* partial_inplace */
1467 0xffff, /* src_mask */
1468 0xffff, /* dst_mask */
1469 FALSE), /* pcrel_offset */
1470
1471 /* Local TOC relative symbol. */
1472 HOWTO (R_TCL, /* type */
1473 0, /* rightshift */
1474 1, /* size (0 = byte, 1 = short, 2 = long) */
1475 16, /* bitsize */
1476 FALSE, /* pc_relative */
1477 0, /* bitpos */
1478 complain_overflow_bitfield, /* complain_on_overflow */
1479 0, /* special_function */
1480 "R_TCL", /* name */
1481 TRUE, /* partial_inplace */
1482 0xffff, /* src_mask */
1483 0xffff, /* dst_mask */
1484 FALSE), /* pcrel_offset */
1485
1486 EMPTY_HOWTO (7),
1487
1488 /* Non modifiable absolute branch. */
1489 HOWTO (R_BA, /* type */
1490 0, /* rightshift */
1491 2, /* size (0 = byte, 1 = short, 2 = long) */
1492 26, /* bitsize */
1493 FALSE, /* pc_relative */
1494 0, /* bitpos */
1495 complain_overflow_bitfield, /* complain_on_overflow */
1496 0, /* special_function */
1497 "R_BA_26", /* name */
1498 TRUE, /* partial_inplace */
1499 0x03fffffc, /* src_mask */
1500 0x03fffffc, /* dst_mask */
1501 FALSE), /* pcrel_offset */
1502
1503 EMPTY_HOWTO (9),
1504
1505 /* Non modifiable relative branch. */
1506 HOWTO (R_BR, /* type */
1507 0, /* rightshift */
1508 2, /* size (0 = byte, 1 = short, 2 = long) */
1509 26, /* bitsize */
1510 TRUE, /* pc_relative */
1511 0, /* bitpos */
1512 complain_overflow_signed, /* complain_on_overflow */
1513 0, /* special_function */
1514 "R_BR", /* name */
1515 TRUE, /* partial_inplace */
1516 0x03fffffc, /* src_mask */
1517 0x03fffffc, /* dst_mask */
1518 FALSE), /* pcrel_offset */
1519
1520 EMPTY_HOWTO (0xb),
1521
1522 /* Indirect load. */
1523 HOWTO (R_RL, /* type */
1524 0, /* rightshift */
1525 1, /* size (0 = byte, 1 = short, 2 = long) */
1526 16, /* bitsize */
1527 FALSE, /* pc_relative */
1528 0, /* bitpos */
1529 complain_overflow_bitfield, /* complain_on_overflow */
1530 0, /* special_function */
1531 "R_RL", /* name */
1532 TRUE, /* partial_inplace */
1533 0xffff, /* src_mask */
1534 0xffff, /* dst_mask */
1535 FALSE), /* pcrel_offset */
1536
1537 /* Load address. */
1538 HOWTO (R_RLA, /* type */
1539 0, /* rightshift */
1540 1, /* size (0 = byte, 1 = short, 2 = long) */
1541 16, /* bitsize */
1542 FALSE, /* pc_relative */
1543 0, /* bitpos */
1544 complain_overflow_bitfield, /* complain_on_overflow */
1545 0, /* special_function */
1546 "R_RLA", /* name */
1547 TRUE, /* partial_inplace */
1548 0xffff, /* src_mask */
1549 0xffff, /* dst_mask */
1550 FALSE), /* pcrel_offset */
1551
1552 EMPTY_HOWTO (0xe),
1553
1554 /* Non-relocating reference. */
1555 HOWTO (R_REF, /* type */
1556 0, /* rightshift */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1558 32, /* bitsize */
1559 FALSE, /* pc_relative */
1560 0, /* bitpos */
1561 complain_overflow_dont, /* complain_on_overflow */
1562 0, /* special_function */
1563 "R_REF", /* name */
1564 FALSE, /* partial_inplace */
1565 0, /* src_mask */
1566 0, /* dst_mask */
1567 FALSE), /* pcrel_offset */
1568
1569 EMPTY_HOWTO (0x10),
1570 EMPTY_HOWTO (0x11),
1571
1572 /* TOC relative indirect load. */
1573 HOWTO (R_TRL, /* type */
1574 0, /* rightshift */
1575 1, /* size (0 = byte, 1 = short, 2 = long) */
1576 16, /* bitsize */
1577 FALSE, /* pc_relative */
1578 0, /* bitpos */
1579 complain_overflow_bitfield, /* complain_on_overflow */
1580 0, /* special_function */
1581 "R_TRL", /* name */
1582 TRUE, /* partial_inplace */
1583 0xffff, /* src_mask */
1584 0xffff, /* dst_mask */
1585 FALSE), /* pcrel_offset */
1586
1587 /* TOC relative load address. */
1588 HOWTO (R_TRLA, /* type */
1589 0, /* rightshift */
1590 1, /* size (0 = byte, 1 = short, 2 = long) */
1591 16, /* bitsize */
1592 FALSE, /* pc_relative */
1593 0, /* bitpos */
1594 complain_overflow_bitfield, /* complain_on_overflow */
1595 0, /* special_function */
1596 "R_TRLA", /* name */
1597 TRUE, /* partial_inplace */
1598 0xffff, /* src_mask */
1599 0xffff, /* dst_mask */
1600 FALSE), /* pcrel_offset */
1601
1602 /* Modifiable relative branch. */
1603 HOWTO (R_RRTBI, /* type */
1604 1, /* rightshift */
1605 2, /* size (0 = byte, 1 = short, 2 = long) */
1606 32, /* bitsize */
1607 FALSE, /* pc_relative */
1608 0, /* bitpos */
1609 complain_overflow_bitfield, /* complain_on_overflow */
1610 0, /* special_function */
1611 "R_RRTBI", /* name */
1612 TRUE, /* partial_inplace */
1613 0xffffffff, /* src_mask */
1614 0xffffffff, /* dst_mask */
1615 FALSE), /* pcrel_offset */
1616
1617 /* Modifiable absolute branch. */
1618 HOWTO (R_RRTBA, /* type */
1619 1, /* rightshift */
1620 2, /* size (0 = byte, 1 = short, 2 = long) */
1621 32, /* bitsize */
1622 FALSE, /* pc_relative */
1623 0, /* bitpos */
1624 complain_overflow_bitfield, /* complain_on_overflow */
1625 0, /* special_function */
1626 "R_RRTBA", /* name */
1627 TRUE, /* partial_inplace */
1628 0xffffffff, /* src_mask */
1629 0xffffffff, /* dst_mask */
1630 FALSE), /* pcrel_offset */
1631
1632 /* Modifiable call absolute indirect. */
1633 HOWTO (R_CAI, /* type */
1634 0, /* rightshift */
1635 1, /* size (0 = byte, 1 = short, 2 = long) */
1636 16, /* bitsize */
1637 FALSE, /* pc_relative */
1638 0, /* bitpos */
1639 complain_overflow_bitfield, /* complain_on_overflow */
1640 0, /* special_function */
1641 "R_CAI", /* name */
1642 TRUE, /* partial_inplace */
1643 0xffff, /* src_mask */
1644 0xffff, /* dst_mask */
1645 FALSE), /* pcrel_offset */
1646
1647 /* Modifiable call relative. */
1648 HOWTO (R_CREL, /* type */
1649 0, /* rightshift */
1650 1, /* size (0 = byte, 1 = short, 2 = long) */
1651 16, /* bitsize */
1652 FALSE, /* pc_relative */
1653 0, /* bitpos */
1654 complain_overflow_bitfield, /* complain_on_overflow */
1655 0, /* special_function */
1656 "R_CREL", /* name */
1657 TRUE, /* partial_inplace */
1658 0xffff, /* src_mask */
1659 0xffff, /* dst_mask */
1660 FALSE), /* pcrel_offset */
1661
1662 /* Modifiable branch absolute. */
1663 HOWTO (R_RBA, /* type */
1664 0, /* rightshift */
1665 2, /* size (0 = byte, 1 = short, 2 = long) */
1666 26, /* bitsize */
1667 FALSE, /* pc_relative */
1668 0, /* bitpos */
1669 complain_overflow_bitfield, /* complain_on_overflow */
1670 0, /* special_function */
1671 "R_RBA", /* name */
1672 TRUE, /* partial_inplace */
1673 0x03fffffc, /* src_mask */
1674 0x03fffffc, /* dst_mask */
1675 FALSE), /* pcrel_offset */
1676
1677 /* Modifiable branch absolute. */
1678 HOWTO (R_RBAC, /* type */
1679 0, /* rightshift */
1680 2, /* size (0 = byte, 1 = short, 2 = long) */
1681 32, /* bitsize */
1682 FALSE, /* pc_relative */
1683 0, /* bitpos */
1684 complain_overflow_bitfield, /* complain_on_overflow */
1685 0, /* special_function */
1686 "R_RBAC", /* name */
1687 TRUE, /* partial_inplace */
1688 0xffffffff, /* src_mask */
1689 0xffffffff, /* dst_mask */
1690 FALSE), /* pcrel_offset */
1691
1692 /* Modifiable branch relative. */
1693 HOWTO (R_RBR, /* type */
1694 0, /* rightshift */
1695 2, /* size (0 = byte, 1 = short, 2 = long) */
1696 26, /* bitsize */
1697 FALSE, /* pc_relative */
1698 0, /* bitpos */
1699 complain_overflow_signed, /* complain_on_overflow */
1700 0, /* special_function */
1701 "R_RBR_26", /* name */
1702 TRUE, /* partial_inplace */
1703 0x03fffffc, /* src_mask */
1704 0x03fffffc, /* dst_mask */
1705 FALSE), /* pcrel_offset */
1706
1707 /* Modifiable branch absolute. */
1708 HOWTO (R_RBRC, /* type */
1709 0, /* rightshift */
1710 1, /* size (0 = byte, 1 = short, 2 = long) */
1711 16, /* bitsize */
1712 FALSE, /* pc_relative */
1713 0, /* bitpos */
1714 complain_overflow_bitfield, /* complain_on_overflow */
1715 0, /* special_function */
1716 "R_RBRC", /* name */
1717 TRUE, /* partial_inplace */
1718 0xffff, /* src_mask */
1719 0xffff, /* dst_mask */
1720 FALSE), /* pcrel_offset */
1721
1722 HOWTO (R_POS, /* type */
1723 0, /* rightshift */
1724 2, /* size (0 = byte, 1 = short, 2 = long) */
1725 32, /* bitsize */
1726 FALSE, /* pc_relative */
1727 0, /* bitpos */
1728 complain_overflow_bitfield, /* complain_on_overflow */
1729 0, /* special_function */
1730 "R_POS_32", /* name */
1731 TRUE, /* partial_inplace */
1732 0xffffffff, /* src_mask */
1733 0xffffffff, /* dst_mask */
1734 FALSE), /* pcrel_offset */
1735
1736 /* 16 bit Non modifiable absolute branch. */
1737 HOWTO (R_BA, /* type */
1738 0, /* rightshift */
1739 1, /* size (0 = byte, 1 = short, 2 = long) */
1740 16, /* bitsize */
1741 FALSE, /* pc_relative */
1742 0, /* bitpos */
1743 complain_overflow_bitfield, /* complain_on_overflow */
1744 0, /* special_function */
1745 "R_BA_16", /* name */
1746 TRUE, /* partial_inplace */
1747 0xfffc, /* src_mask */
1748 0xfffc, /* dst_mask */
1749 FALSE), /* pcrel_offset */
1750
1751 /* Modifiable branch relative. */
1752 HOWTO (R_RBR, /* type */
1753 0, /* rightshift */
1754 1, /* size (0 = byte, 1 = short, 2 = long) */
1755 16, /* bitsize */
1756 FALSE, /* pc_relative */
1757 0, /* bitpos */
1758 complain_overflow_signed, /* complain_on_overflow */
1759 0, /* special_function */
1760 "R_RBR_16", /* name */
1761 TRUE, /* partial_inplace */
1762 0xffff, /* src_mask */
1763 0xffff, /* dst_mask */
1764 FALSE), /* pcrel_offset */
1765
1766 /* Modifiable branch absolute. */
1767 HOWTO (R_RBA, /* type */
1768 0, /* rightshift */
1769 1, /* size (0 = byte, 1 = short, 2 = long) */
1770 16, /* bitsize */
1771 FALSE, /* pc_relative */
1772 0, /* bitpos */
1773 complain_overflow_bitfield, /* complain_on_overflow */
1774 0, /* special_function */
1775 "R_RBA_16", /* name */
1776 TRUE, /* partial_inplace */
1777 0xffff, /* src_mask */
1778 0xffff, /* dst_mask */
1779 FALSE), /* pcrel_offset */
1780
1781 };
1782
1783 void
1784 xcoff64_rtype2howto (relent, internal)
1785 arelent *relent;
1786 struct internal_reloc *internal;
1787 {
1788 if (internal->r_type > R_RBRC)
1789 abort ();
1790
1791 /* Default howto layout works most of the time */
1792 relent->howto = &xcoff64_howto_table[internal->r_type];
1793
1794 /* Special case some 16 bit reloc */
1795 if (15 == (internal->r_size & 0x3f))
1796 {
1797 if (R_BA == internal->r_type)
1798 relent->howto = &xcoff64_howto_table[0x1d];
1799 else if (R_RBR == internal->r_type)
1800 relent->howto = &xcoff64_howto_table[0x1e];
1801 else if (R_RBA == internal->r_type)
1802 relent->howto = &xcoff64_howto_table[0x1f];
1803 }
1804 /* Special case 32 bit */
1805 else if (31 == (internal->r_size & 0x3f))
1806 {
1807 if (R_POS == internal->r_type)
1808 relent->howto = &xcoff64_howto_table[0x1c];
1809 }
1810
1811 /* The r_size field of an XCOFF reloc encodes the bitsize of the
1812 relocation, as well as indicating whether it is signed or not.
1813 Doublecheck that the relocation information gathered from the
1814 type matches this information. The bitsize is not significant
1815 for R_REF relocs. */
1816 if (relent->howto->dst_mask != 0
1817 && (relent->howto->bitsize
1818 != ((unsigned int) internal->r_size & 0x3f) + 1))
1819 abort ();
1820 }
1821
1822 reloc_howto_type *
1823 xcoff64_reloc_type_lookup (abfd, code)
1824 bfd *abfd ATTRIBUTE_UNUSED;
1825 bfd_reloc_code_real_type code;
1826 {
1827 switch (code)
1828 {
1829 case BFD_RELOC_PPC_B26:
1830 return &xcoff64_howto_table[0xa];
1831 case BFD_RELOC_PPC_BA16:
1832 return &xcoff64_howto_table[0x1d];
1833 case BFD_RELOC_PPC_BA26:
1834 return &xcoff64_howto_table[8];
1835 case BFD_RELOC_PPC_TOC16:
1836 return &xcoff64_howto_table[3];
1837 case BFD_RELOC_32:
1838 case BFD_RELOC_CTOR:
1839 return &xcoff64_howto_table[0x1c];
1840 case BFD_RELOC_64:
1841 return &xcoff64_howto_table[0];
1842 default:
1843 return NULL;
1844 }
1845 }
1846
1847 /* Read in the armap of an XCOFF archive. */
1848
1849 static bfd_boolean
1850 xcoff64_slurp_armap (abfd)
1851 bfd *abfd;
1852 {
1853 file_ptr off;
1854 size_t namlen;
1855 bfd_size_type sz, amt;
1856 bfd_byte *contents, *cend;
1857 bfd_vma c, i;
1858 carsym *arsym;
1859 bfd_byte *p;
1860 file_ptr pos;
1861
1862 /* This is for the new format. */
1863 struct xcoff_ar_hdr_big hdr;
1864
1865 if (xcoff_ardata (abfd) == NULL)
1866 {
1867 bfd_has_map (abfd) = FALSE;
1868 return TRUE;
1869 }
1870
1871 off = bfd_scan_vma (xcoff_ardata_big (abfd)->symoff64,
1872 (const char **) NULL, 10);
1873 if (off == 0)
1874 {
1875 bfd_has_map (abfd) = FALSE;
1876 return TRUE;
1877 }
1878
1879 if (bfd_seek (abfd, off, SEEK_SET) != 0)
1880 return FALSE;
1881
1882 /* The symbol table starts with a normal archive header. */
1883 if (bfd_bread ((PTR) &hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd)
1884 != SIZEOF_AR_HDR_BIG)
1885 return FALSE;
1886
1887 /* Skip the name (normally empty). */
1888 namlen = strtol (hdr.namlen, (char **) NULL, 10);
1889 pos = ((namlen + 1) & ~(size_t) 1) + SXCOFFARFMAG;
1890 if (bfd_seek (abfd, pos, SEEK_CUR) != 0)
1891 return FALSE;
1892
1893 sz = bfd_scan_vma (hdr.size, (const char **) NULL, 10);
1894
1895 /* Read in the entire symbol table. */
1896 contents = (bfd_byte *) bfd_alloc (abfd, sz);
1897 if (contents == NULL)
1898 return FALSE;
1899 if (bfd_bread ((PTR) contents, sz, abfd) != sz)
1900 return FALSE;
1901
1902 /* The symbol table starts with an eight byte count. */
1903 c = H_GET_64 (abfd, contents);
1904
1905 if (c * 8 >= sz)
1906 {
1907 bfd_set_error (bfd_error_bad_value);
1908 return FALSE;
1909 }
1910 amt = c;
1911 amt *= sizeof (carsym);
1912 bfd_ardata (abfd)->symdefs = (carsym *) bfd_alloc (abfd, amt);
1913 if (bfd_ardata (abfd)->symdefs == NULL)
1914 return FALSE;
1915
1916 /* After the count comes a list of eight byte file offsets. */
1917 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8;
1918 i < c;
1919 ++i, ++arsym, p += 8)
1920 arsym->file_offset = H_GET_64 (abfd, p);
1921
1922 /* After the file offsets come null terminated symbol names. */
1923 cend = contents + sz;
1924 for (i = 0, arsym = bfd_ardata (abfd)->symdefs;
1925 i < c;
1926 ++i, ++arsym, p += strlen ((char *) p) + 1)
1927 {
1928 if (p >= cend)
1929 {
1930 bfd_set_error (bfd_error_bad_value);
1931 return FALSE;
1932 }
1933 arsym->name = (char *) p;
1934 }
1935
1936 bfd_ardata (abfd)->symdef_count = c;
1937 bfd_has_map (abfd) = TRUE;
1938
1939 return TRUE;
1940 }
1941
1942
1943 /* See if this is an NEW XCOFF archive. */
1944
1945 static const bfd_target *
1946 xcoff64_archive_p (abfd)
1947 bfd *abfd;
1948 {
1949 struct artdata *tdata_hold;
1950 char magic[SXCOFFARMAG];
1951 /* This is the new format. */
1952 struct xcoff_ar_file_hdr_big hdr;
1953 bfd_size_type amt = SXCOFFARMAG;
1954
1955 if (bfd_bread ((PTR) magic, amt, abfd) != amt)
1956 {
1957 if (bfd_get_error () != bfd_error_system_call)
1958 bfd_set_error (bfd_error_wrong_format);
1959 return NULL;
1960 }
1961
1962 if (strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0)
1963 {
1964 bfd_set_error (bfd_error_wrong_format);
1965 return NULL;
1966 }
1967
1968 /* Copy over the magic string. */
1969 memcpy (hdr.magic, magic, SXCOFFARMAG);
1970
1971 /* Now read the rest of the file header. */
1972 amt = SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG;
1973 if (bfd_bread ((PTR) &hdr.memoff, amt, abfd) != amt)
1974 {
1975 if (bfd_get_error () != bfd_error_system_call)
1976 bfd_set_error (bfd_error_wrong_format);
1977 return NULL;
1978 }
1979
1980 tdata_hold = bfd_ardata (abfd);
1981
1982 amt = sizeof (struct artdata);
1983 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt);
1984 if (bfd_ardata (abfd) == (struct artdata *) NULL)
1985 goto error_ret_restore;
1986
1987 bfd_ardata (abfd)->cache = NULL;
1988 bfd_ardata (abfd)->archive_head = NULL;
1989 bfd_ardata (abfd)->symdefs = NULL;
1990 bfd_ardata (abfd)->extended_names = NULL;
1991 bfd_ardata (abfd)->first_file_filepos = bfd_scan_vma (hdr.firstmemoff,
1992 (const char **) NULL,
1993 10);
1994
1995 amt = SIZEOF_AR_FILE_HDR_BIG;
1996 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt);
1997 if (bfd_ardata (abfd)->tdata == NULL)
1998 goto error_ret;
1999
2000 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG);
2001
2002 if (! xcoff64_slurp_armap (abfd))
2003 {
2004 error_ret:
2005 bfd_release (abfd, bfd_ardata (abfd));
2006 error_ret_restore:
2007 bfd_ardata (abfd) = tdata_hold;
2008 return NULL;
2009 }
2010
2011 return abfd->xvec;
2012 }
2013
2014
2015 /* Open the next element in an XCOFF archive. */
2016
2017 static bfd *
2018 xcoff64_openr_next_archived_file (archive, last_file)
2019 bfd *archive;
2020 bfd *last_file;
2021 {
2022 bfd_vma filestart;
2023
2024 if ((xcoff_ardata (archive) == NULL)
2025 || ! xcoff_big_format_p (archive))
2026 {
2027 bfd_set_error (bfd_error_invalid_operation);
2028 return NULL;
2029 }
2030
2031 if (last_file == NULL)
2032 {
2033 filestart = bfd_ardata (archive)->first_file_filepos;
2034 }
2035 else
2036 {
2037 filestart = bfd_scan_vma (arch_xhdr_big (last_file)->nextoff,
2038 (const char **) NULL, 10);
2039 }
2040
2041 if (filestart == 0
2042 || filestart == bfd_scan_vma (xcoff_ardata_big (archive)->memoff,
2043 (const char **) NULL, 10)
2044 || filestart == bfd_scan_vma (xcoff_ardata_big (archive)->symoff,
2045 (const char **) NULL, 10))
2046 {
2047 bfd_set_error (bfd_error_no_more_archived_files);
2048 return NULL;
2049 }
2050
2051 return _bfd_get_elt_at_filepos (archive, (file_ptr) filestart);
2052 }
2053
2054 /* We can't use the usual coff_sizeof_headers routine, because AIX
2055 always uses an a.out header. */
2056
2057 static int
2058 xcoff64_sizeof_headers (abfd, reloc)
2059 bfd *abfd;
2060 bfd_boolean reloc ATTRIBUTE_UNUSED;
2061 {
2062 int size;
2063
2064 size = bfd_coff_filhsz (abfd);
2065
2066 /* Don't think the small aout header can be used since some of the
2067 old elements have been reordered past the end of the old coff
2068 small aout size. */
2069
2070 if (xcoff_data (abfd)->full_aouthdr)
2071 size += bfd_coff_aoutsz (abfd);
2072
2073 size += abfd->section_count * bfd_coff_scnhsz (abfd);
2074 return size;
2075 }
2076
2077
2078
2079 static asection *
2080 xcoff64_create_csect_from_smclas (abfd, aux, symbol_name)
2081 bfd *abfd;
2082 union internal_auxent *aux;
2083 const char *symbol_name;
2084 {
2085 asection *return_value = NULL;
2086
2087 /* Changes from 32 :
2088 .sv == 8, is only for 32 bit programs
2089 .ti == 12 and .tb == 13 are now reserved. */
2090 static const char *names[19] =
2091 {
2092 ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo",
2093 NULL, ".bs", ".ds", ".uc", NULL, NULL, NULL, ".tc0",
2094 ".td", ".sv64", ".sv3264"
2095 };
2096
2097 if ((19 >= aux->x_csect.x_smclas)
2098 && (NULL != names[aux->x_csect.x_smclas]))
2099 {
2100
2101 return_value = bfd_make_section_anyway
2102 (abfd, names[aux->x_csect.x_smclas]);
2103
2104 }
2105 else
2106 {
2107 (*_bfd_error_handler)
2108 (_("%s: symbol `%s' has unrecognized smclas %d"),
2109 bfd_archive_filename (abfd), symbol_name, aux->x_csect.x_smclas);
2110 bfd_set_error (bfd_error_bad_value);
2111 }
2112
2113 return return_value;
2114 }
2115
2116 static bfd_boolean
2117 xcoff64_is_lineno_count_overflow (abfd, value)
2118 bfd *abfd ATTRIBUTE_UNUSED;
2119 bfd_vma value ATTRIBUTE_UNUSED;
2120 {
2121 return FALSE;
2122 }
2123
2124 static bfd_boolean
2125 xcoff64_is_reloc_count_overflow (abfd, value)
2126 bfd *abfd ATTRIBUTE_UNUSED;
2127 bfd_vma value ATTRIBUTE_UNUSED;
2128 {
2129 return FALSE;
2130 }
2131
2132 static bfd_vma
2133 xcoff64_loader_symbol_offset (abfd, ldhdr)
2134 bfd *abfd ATTRIBUTE_UNUSED;
2135 struct internal_ldhdr *ldhdr;
2136 {
2137 return (ldhdr->l_symoff);
2138 }
2139
2140 static bfd_vma
2141 xcoff64_loader_reloc_offset (abfd, ldhdr)
2142 bfd *abfd ATTRIBUTE_UNUSED;
2143 struct internal_ldhdr *ldhdr;
2144 {
2145 return (ldhdr->l_rldoff);
2146 }
2147
2148 static bfd_boolean
2149 xcoff64_bad_format_hook (abfd, filehdr)
2150 bfd * abfd;
2151 PTR filehdr;
2152 {
2153 struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
2154
2155 /* Check flavor first. */
2156 if (bfd_get_flavour (abfd) != bfd_target_xcoff_flavour)
2157 return FALSE;
2158
2159 if (bfd_xcoff_magic_number (abfd) != internal_f->f_magic)
2160 return FALSE;
2161
2162 return TRUE;
2163 }
2164
2165 static bfd_boolean
2166 xcoff64_generate_rtinit (abfd, init, fini, rtld)
2167 bfd *abfd;
2168 const char *init;
2169 const char *fini;
2170 bfd_boolean rtld;
2171 {
2172 bfd_byte filehdr_ext[FILHSZ];
2173 bfd_byte scnhdr_ext[SCNHSZ * 3];
2174 bfd_byte syment_ext[SYMESZ * 10];
2175 bfd_byte reloc_ext[RELSZ * 3];
2176 bfd_byte *data_buffer;
2177 bfd_size_type data_buffer_size;
2178 bfd_byte *string_table, *st_tmp;
2179 bfd_size_type string_table_size;
2180 bfd_vma val;
2181 size_t initsz, finisz;
2182 struct internal_filehdr filehdr;
2183 struct internal_scnhdr text_scnhdr;
2184 struct internal_scnhdr data_scnhdr;
2185 struct internal_scnhdr bss_scnhdr;
2186 struct internal_syment syment;
2187 union internal_auxent auxent;
2188 struct internal_reloc reloc;
2189
2190 char *text_name = ".text";
2191 char *data_name = ".data";
2192 char *bss_name = ".bss";
2193 char *rtinit_name = "__rtinit";
2194 char *rtld_name = "__rtld";
2195
2196 if (! bfd_xcoff_rtinit_size (abfd))
2197 return FALSE;
2198
2199 initsz = (init == NULL ? 0 : 1 + strlen (init));
2200 finisz = (fini == NULL ? 0 : 1 + strlen (fini));
2201
2202 /* File header. */
2203 memset (filehdr_ext, 0, FILHSZ);
2204 memset (&filehdr, 0, sizeof (struct internal_filehdr));
2205 filehdr.f_magic = bfd_xcoff_magic_number (abfd);
2206 filehdr.f_nscns = 3;
2207 filehdr.f_timdat = 0;
2208 filehdr.f_nsyms = 0; /* at least 6, no more than 8 */
2209 filehdr.f_symptr = 0; /* set below */
2210 filehdr.f_opthdr = 0;
2211 filehdr.f_flags = 0;
2212
2213 /* Section headers. */
2214 memset (scnhdr_ext, 0, 3 * SCNHSZ);
2215
2216 /* Text. */
2217 memset (&text_scnhdr, 0, sizeof (struct internal_scnhdr));
2218 memcpy (text_scnhdr.s_name, text_name, strlen (text_name));
2219 text_scnhdr.s_paddr = 0;
2220 text_scnhdr.s_vaddr = 0;
2221 text_scnhdr.s_size = 0;
2222 text_scnhdr.s_scnptr = 0;
2223 text_scnhdr.s_relptr = 0;
2224 text_scnhdr.s_lnnoptr = 0;
2225 text_scnhdr.s_nreloc = 0;
2226 text_scnhdr.s_nlnno = 0;
2227 text_scnhdr.s_flags = STYP_TEXT;
2228
2229 /* Data. */
2230 memset (&data_scnhdr, 0, sizeof (struct internal_scnhdr));
2231 memcpy (data_scnhdr.s_name, data_name, strlen (data_name));
2232 data_scnhdr.s_paddr = 0;
2233 data_scnhdr.s_vaddr = 0;
2234 data_scnhdr.s_size = 0; /* set below */
2235 data_scnhdr.s_scnptr = FILHSZ + 3 * SCNHSZ;
2236 data_scnhdr.s_relptr = 0; /* set below */
2237 data_scnhdr.s_lnnoptr = 0;
2238 data_scnhdr.s_nreloc = 0; /* either 1 or 2 */
2239 data_scnhdr.s_nlnno = 0;
2240 data_scnhdr.s_flags = STYP_DATA;
2241
2242 /* Bss. */
2243 memset (&bss_scnhdr, 0, sizeof (struct internal_scnhdr));
2244 memcpy (bss_scnhdr.s_name, bss_name, strlen (bss_name));
2245 bss_scnhdr.s_paddr = 0; /* set below */
2246 bss_scnhdr.s_vaddr = 0; /* set below */
2247 bss_scnhdr.s_size = 0; /* set below */
2248 bss_scnhdr.s_scnptr = 0;
2249 bss_scnhdr.s_relptr = 0;
2250 bss_scnhdr.s_lnnoptr = 0;
2251 bss_scnhdr.s_nreloc = 0;
2252 bss_scnhdr.s_nlnno = 0;
2253 bss_scnhdr.s_flags = STYP_BSS;
2254
2255 /* .data
2256 0x0000 0x00000000 : rtl
2257 0x0004 0x00000000 :
2258 0x0008 0x00000018 : offset to init, or 0
2259 0x000C 0x00000038 : offset to fini, or 0
2260 0x0010 0x00000010 : size of descriptor
2261 0x0014 0x00000000 : pad
2262 0x0018 0x00000000 : init, needs a reloc
2263 0x001C 0x00000000 :
2264 0x0020 0x00000058 : offset to init name
2265 0x0024 0x00000000 : flags, padded to a word
2266 0x0028 0x00000000 : empty init
2267 0x002C 0x00000000 :
2268 0x0030 0x00000000 :
2269 0x0034 0x00000000 :
2270 0x0038 0x00000000 : fini, needs a reloc
2271 0x003C 0x00000000 :
2272 0x0040 0x00000??? : offset to fini name
2273 0x0044 0x00000000 : flags, padded to a word
2274 0x0048 0x00000000 : empty fini
2275 0x004C 0x00000000 :
2276 0x0050 0x00000000 :
2277 0x0054 0x00000000 :
2278 0x0058 init name
2279 0x0058 + initsz fini name */
2280
2281 data_buffer_size = 0x0058 + initsz + finisz;
2282 data_buffer_size = (data_buffer_size + 7) &~ (bfd_size_type) 7;
2283 data_buffer = NULL;
2284 data_buffer = (bfd_byte *) bfd_zmalloc (data_buffer_size);
2285 if (data_buffer == NULL)
2286 return FALSE;
2287
2288 if (initsz)
2289 {
2290 val = 0x18;
2291 bfd_put_32 (abfd, val, &data_buffer[0x08]);
2292 val = 0x58;
2293 bfd_put_32 (abfd, val, &data_buffer[0x20]);
2294 memcpy (&data_buffer[val], init, initsz);
2295 }
2296
2297 if (finisz)
2298 {
2299 val = 0x38;
2300 bfd_put_32 (abfd, val, &data_buffer[0x0C]);
2301 val = 0x58 + initsz;
2302 bfd_put_32 (abfd, val, &data_buffer[0x40]);
2303 memcpy (&data_buffer[val], fini, finisz);
2304 }
2305
2306 val = 0x10;
2307 bfd_put_32 (abfd, val, &data_buffer[0x10]);
2308 data_scnhdr.s_size = data_buffer_size;
2309 bss_scnhdr.s_paddr = bss_scnhdr.s_vaddr = data_scnhdr.s_size;
2310
2311 /* String table. */
2312 string_table_size = 4;
2313 string_table_size += strlen (data_name) + 1;
2314 string_table_size += strlen (rtinit_name) + 1;
2315 string_table_size += initsz;
2316 string_table_size += finisz;
2317 if (rtld)
2318 string_table_size += strlen (rtld_name) + 1;
2319
2320 string_table = (bfd_byte *) bfd_zmalloc (string_table_size);
2321 if (string_table == NULL)
2322 return FALSE;
2323
2324 val = string_table_size;
2325 bfd_put_32 (abfd, val, &string_table[0]);
2326 st_tmp = string_table + 4;
2327
2328 /* symbols
2329 0. .data csect
2330 2. __rtinit
2331 4. init function
2332 6. fini function
2333 8. __rtld */
2334 memset (syment_ext, 0, 10 * SYMESZ);
2335 memset (reloc_ext, 0, 3 * RELSZ);
2336
2337 /* .data csect */
2338 memset (&syment, 0, sizeof (struct internal_syment));
2339 memset (&auxent, 0, sizeof (union internal_auxent));
2340
2341 syment._n._n_n._n_offset = st_tmp - string_table;
2342 memcpy (st_tmp, data_name, strlen (data_name));
2343 st_tmp += strlen (data_name) + 1;
2344
2345 syment.n_scnum = 2;
2346 syment.n_sclass = C_HIDEXT;
2347 syment.n_numaux = 1;
2348 auxent.x_csect.x_scnlen.l = data_buffer_size;
2349 auxent.x_csect.x_smtyp = 3 << 3 | XTY_SD;
2350 auxent.x_csect.x_smclas = XMC_RW;
2351 bfd_coff_swap_sym_out (abfd, &syment,
2352 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2353 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2354 syment.n_numaux,
2355 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2356 filehdr.f_nsyms += 2;
2357
2358 /* __rtinit */
2359 memset (&syment, 0, sizeof (struct internal_syment));
2360 memset (&auxent, 0, sizeof (union internal_auxent));
2361 syment._n._n_n._n_offset = st_tmp - string_table;
2362 memcpy (st_tmp, rtinit_name, strlen (rtinit_name));
2363 st_tmp += strlen (rtinit_name) + 1;
2364
2365 syment.n_scnum = 2;
2366 syment.n_sclass = C_EXT;
2367 syment.n_numaux = 1;
2368 auxent.x_csect.x_smtyp = XTY_LD;
2369 auxent.x_csect.x_smclas = XMC_RW;
2370 bfd_coff_swap_sym_out (abfd, &syment,
2371 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2372 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2373 syment.n_numaux,
2374 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2375 filehdr.f_nsyms += 2;
2376
2377 /* Init. */
2378 if (initsz)
2379 {
2380 memset (&syment, 0, sizeof (struct internal_syment));
2381 memset (&auxent, 0, sizeof (union internal_auxent));
2382
2383 syment._n._n_n._n_offset = st_tmp - string_table;
2384 memcpy (st_tmp, init, initsz);
2385 st_tmp += initsz;
2386
2387 syment.n_sclass = C_EXT;
2388 syment.n_numaux = 1;
2389 bfd_coff_swap_sym_out (abfd, &syment,
2390 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2391 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2392 syment.n_numaux,
2393 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2394 /* Reloc. */
2395 memset (&reloc, 0, sizeof (struct internal_reloc));
2396 reloc.r_vaddr = 0x0018;
2397 reloc.r_symndx = filehdr.f_nsyms;
2398 reloc.r_type = R_POS;
2399 reloc.r_size = 63;
2400 bfd_coff_swap_reloc_out (abfd, &reloc, &reloc_ext[0]);
2401
2402 filehdr.f_nsyms += 2;
2403 data_scnhdr.s_nreloc += 1;
2404 }
2405
2406 /* Finit. */
2407 if (finisz)
2408 {
2409 memset (&syment, 0, sizeof (struct internal_syment));
2410 memset (&auxent, 0, sizeof (union internal_auxent));
2411
2412 syment._n._n_n._n_offset = st_tmp - string_table;
2413 memcpy (st_tmp, fini, finisz);
2414 st_tmp += finisz;
2415
2416 syment.n_sclass = C_EXT;
2417 syment.n_numaux = 1;
2418 bfd_coff_swap_sym_out (abfd, &syment,
2419 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2420 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2421 syment.n_numaux,
2422 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2423
2424 /* Reloc. */
2425 memset (&reloc, 0, sizeof (struct internal_reloc));
2426 reloc.r_vaddr = 0x0038;
2427 reloc.r_symndx = filehdr.f_nsyms;
2428 reloc.r_type = R_POS;
2429 reloc.r_size = 63;
2430 bfd_coff_swap_reloc_out (abfd, &reloc,
2431 &reloc_ext[data_scnhdr.s_nreloc * RELSZ]);
2432
2433 filehdr.f_nsyms += 2;
2434 data_scnhdr.s_nreloc += 1;
2435 }
2436
2437 if (rtld)
2438 {
2439 memset (&syment, 0, sizeof (struct internal_syment));
2440 memset (&auxent, 0, sizeof (union internal_auxent));
2441
2442 syment._n._n_n._n_offset = st_tmp - string_table;
2443 memcpy (st_tmp, rtld_name, strlen (rtld_name));
2444 st_tmp += strlen (rtld_name) + 1;
2445
2446 syment.n_sclass = C_EXT;
2447 syment.n_numaux = 1;
2448 bfd_coff_swap_sym_out (abfd, &syment,
2449 &syment_ext[filehdr.f_nsyms * SYMESZ]);
2450 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0,
2451 syment.n_numaux,
2452 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]);
2453
2454 /* Reloc. */
2455 memset (&reloc, 0, sizeof (struct internal_reloc));
2456 reloc.r_vaddr = 0x0000;
2457 reloc.r_symndx = filehdr.f_nsyms;
2458 reloc.r_type = R_POS;
2459 reloc.r_size = 63;
2460 bfd_coff_swap_reloc_out (abfd, &reloc,
2461 &reloc_ext[data_scnhdr.s_nreloc * RELSZ]);
2462
2463 filehdr.f_nsyms += 2;
2464 data_scnhdr.s_nreloc += 1;
2465
2466 bss_scnhdr.s_size = 0;
2467 }
2468
2469 data_scnhdr.s_relptr = data_scnhdr.s_scnptr + data_buffer_size;
2470 filehdr.f_symptr = data_scnhdr.s_relptr + data_scnhdr.s_nreloc * RELSZ;
2471
2472 bfd_coff_swap_filehdr_out (abfd, &filehdr, filehdr_ext);
2473 bfd_bwrite (filehdr_ext, FILHSZ, abfd);
2474 bfd_coff_swap_scnhdr_out (abfd, &text_scnhdr, &scnhdr_ext[SCNHSZ * 0]);
2475 bfd_coff_swap_scnhdr_out (abfd, &data_scnhdr, &scnhdr_ext[SCNHSZ * 1]);
2476 bfd_coff_swap_scnhdr_out (abfd, &bss_scnhdr, &scnhdr_ext[SCNHSZ * 2]);
2477 bfd_bwrite (scnhdr_ext, 3 * SCNHSZ, abfd);
2478 bfd_bwrite (data_buffer, data_buffer_size, abfd);
2479 bfd_bwrite (reloc_ext, data_scnhdr.s_nreloc * RELSZ, abfd);
2480 bfd_bwrite (syment_ext, filehdr.f_nsyms * SYMESZ, abfd);
2481 bfd_bwrite (string_table, string_table_size, abfd);
2482
2483 free (data_buffer);
2484 data_buffer = NULL;
2485
2486 return TRUE;
2487 }
2488
2489 /* The typical dynamic reloc. */
2490
2491 static reloc_howto_type xcoff64_dynamic_reloc =
2492 HOWTO (0, /* type */
2493 0, /* rightshift */
2494 4, /* size (0 = byte, 1 = short, 2 = long) */
2495 64, /* bitsize */
2496 FALSE, /* pc_relative */
2497 0, /* bitpos */
2498 complain_overflow_bitfield, /* complain_on_overflow */
2499 0, /* special_function */
2500 "R_POS", /* name */
2501 TRUE, /* partial_inplace */
2502 MINUS_ONE, /* src_mask */
2503 MINUS_ONE, /* dst_mask */
2504 FALSE); /* pcrel_offset */
2505
2506 static unsigned long xcoff64_glink_code[10] =
2507 {
2508 0xe9820000, /* ld r12,0(r2) */
2509 0xf8410028, /* std r2,40(r1) */
2510 0xe80c0000, /* ld r0,0(r12) */
2511 0xe84c0008, /* ld r0,8(r12) */
2512 0x7c0903a6, /* mtctr r0 */
2513 0x4e800420, /* bctr */
2514 0x00000000, /* start of traceback table */
2515 0x000ca000, /* traceback table */
2516 0x00000000, /* traceback table */
2517 0x00000018, /* ??? */
2518 };
2519
2520 static const struct xcoff_backend_data_rec bfd_xcoff_backend_data =
2521 {
2522 { /* COFF backend, defined in libcoff.h. */
2523 _bfd_xcoff64_swap_aux_in,
2524 _bfd_xcoff64_swap_sym_in,
2525 _bfd_xcoff64_swap_lineno_in,
2526 _bfd_xcoff64_swap_aux_out,
2527 _bfd_xcoff64_swap_sym_out,
2528 _bfd_xcoff64_swap_lineno_out,
2529 xcoff64_swap_reloc_out,
2530 coff_swap_filehdr_out,
2531 coff_swap_aouthdr_out,
2532 coff_swap_scnhdr_out,
2533 FILHSZ,
2534 AOUTSZ,
2535 SCNHSZ,
2536 SYMESZ,
2537 AUXESZ,
2538 RELSZ,
2539 LINESZ,
2540 FILNMLEN,
2541 TRUE, /* _bfd_coff_long_filenames */
2542 FALSE, /* _bfd_coff_long_section_names */
2543 3, /* _bfd_coff_default_section_alignment_power */
2544 TRUE, /* _bfd_coff_force_symnames_in_strings */
2545 4, /* _bfd_coff_debug_string_prefix_length */
2546 coff_swap_filehdr_in,
2547 coff_swap_aouthdr_in,
2548 coff_swap_scnhdr_in,
2549 xcoff64_swap_reloc_in,
2550 xcoff64_bad_format_hook,
2551 coff_set_arch_mach_hook,
2552 coff_mkobject_hook,
2553 styp_to_sec_flags,
2554 coff_set_alignment_hook,
2555 coff_slurp_symbol_table,
2556 symname_in_debug_hook,
2557 coff_pointerize_aux_hook,
2558 coff_print_aux,
2559 dummy_reloc16_extra_cases,
2560 dummy_reloc16_estimate,
2561 NULL, /* bfd_coff_sym_is_global */
2562 coff_compute_section_file_positions,
2563 NULL, /* _bfd_coff_start_final_link */
2564 xcoff64_ppc_relocate_section,
2565 coff_rtype_to_howto,
2566 NULL, /* _bfd_coff_adjust_symndx */
2567 _bfd_generic_link_add_one_symbol,
2568 coff_link_output_has_begun,
2569 coff_final_link_postscript
2570 },
2571
2572 0x01EF, /* magic number */
2573 bfd_arch_powerpc,
2574 bfd_mach_ppc_620,
2575
2576 /* Function pointers to xcoff specific swap routines. */
2577 xcoff64_swap_ldhdr_in,
2578 xcoff64_swap_ldhdr_out,
2579 xcoff64_swap_ldsym_in,
2580 xcoff64_swap_ldsym_out,
2581 xcoff64_swap_ldrel_in,
2582 xcoff64_swap_ldrel_out,
2583
2584 /* Sizes. */
2585 LDHDRSZ,
2586 LDSYMSZ,
2587 LDRELSZ,
2588 24, /* _xcoff_function_descriptor_size */
2589 0, /* _xcoff_small_aout_header_size */
2590
2591 /* Versions. */
2592 2, /* _xcoff_ldhdr_version */
2593
2594 _bfd_xcoff64_put_symbol_name,
2595 _bfd_xcoff64_put_ldsymbol_name,
2596 &xcoff64_dynamic_reloc,
2597 xcoff64_create_csect_from_smclas,
2598
2599 /* Lineno and reloc count overflow. */
2600 xcoff64_is_lineno_count_overflow,
2601 xcoff64_is_reloc_count_overflow,
2602
2603 xcoff64_loader_symbol_offset,
2604 xcoff64_loader_reloc_offset,
2605
2606 /* glink. */
2607 &xcoff64_glink_code[0],
2608 40, /* _xcoff_glink_size */
2609
2610 /* rtinit. */
2611 88, /* _xcoff_rtinit_size */
2612 xcoff64_generate_rtinit,
2613 };
2614
2615 /* The transfer vector that leads the outside world to all of the above. */
2616 const bfd_target rs6000coff64_vec =
2617 {
2618 "aixcoff64-rs6000",
2619 bfd_target_xcoff_flavour,
2620 BFD_ENDIAN_BIG, /* data byte order is big */
2621 BFD_ENDIAN_BIG, /* header byte order is big */
2622
2623 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
2624 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
2625
2626 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
2627 0, /* leading char */
2628 '/', /* ar_pad_char */
2629 15, /* ar_max_namelen */
2630
2631 /* data */
2632 bfd_getb64,
2633 bfd_getb_signed_64,
2634 bfd_putb64,
2635 bfd_getb32,
2636 bfd_getb_signed_32,
2637 bfd_putb32,
2638 bfd_getb16,
2639 bfd_getb_signed_16,
2640 bfd_putb16,
2641
2642 /* hdrs */
2643 bfd_getb64,
2644 bfd_getb_signed_64,
2645 bfd_putb64,
2646 bfd_getb32,
2647 bfd_getb_signed_32,
2648 bfd_putb32,
2649 bfd_getb16,
2650 bfd_getb_signed_16,
2651 bfd_putb16,
2652
2653 { /* bfd_check_format */
2654 _bfd_dummy_target,
2655 coff_object_p,
2656 xcoff64_archive_p,
2657 CORE_FILE_P
2658 },
2659
2660 { /* bfd_set_format */
2661 bfd_false,
2662 coff_mkobject,
2663 _bfd_generic_mkarchive,
2664 bfd_false
2665 },
2666
2667 {/* bfd_write_contents */
2668 bfd_false,
2669 xcoff64_write_object_contents,
2670 _bfd_xcoff_write_archive_contents,
2671 bfd_false
2672 },
2673
2674 /* Generic */
2675 bfd_true,
2676 bfd_true,
2677 coff_new_section_hook,
2678 _bfd_generic_get_section_contents,
2679 _bfd_generic_get_section_contents_in_window,
2680
2681 /* Copy */
2682 _bfd_xcoff_copy_private_bfd_data,
2683 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2684 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true),
2685 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true),
2686 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2687 ((bfd_boolean (*) (bfd *, flagword)) bfd_true),
2688 ((bfd_boolean (*) (bfd *, void * )) bfd_true),
2689
2690 /* Core */
2691 coff_core_file_failing_command,
2692 coff_core_file_failing_signal,
2693 coff_core_file_matches_executable_p,
2694
2695 /* Archive */
2696 xcoff64_slurp_armap,
2697 bfd_false,
2698 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) bfd_false),
2699 bfd_dont_truncate_arname,
2700 _bfd_xcoff_write_armap,
2701 _bfd_xcoff_read_ar_hdr,
2702 xcoff64_openr_next_archived_file,
2703 _bfd_generic_get_elt_at_index,
2704 _bfd_xcoff_stat_arch_elt,
2705 bfd_true,
2706
2707 /* Symbols */
2708 coff_get_symtab_upper_bound,
2709 coff_canonicalize_symtab,
2710 coff_make_empty_symbol,
2711 coff_print_symbol,
2712 coff_get_symbol_info,
2713 _bfd_xcoff_is_local_label_name,
2714 coff_get_lineno,
2715 coff_find_nearest_line,
2716 coff_bfd_make_debug_symbol,
2717 _bfd_generic_read_minisymbols,
2718 _bfd_generic_minisymbol_to_symbol,
2719
2720 /* Reloc */
2721 coff_get_reloc_upper_bound,
2722 coff_canonicalize_reloc,
2723 xcoff64_reloc_type_lookup,
2724
2725 /* Write */
2726 coff_set_arch_mach,
2727 coff_set_section_contents,
2728
2729 /* Link */
2730 xcoff64_sizeof_headers,
2731 bfd_generic_get_relocated_section_contents,
2732 bfd_generic_relax_section,
2733 _bfd_xcoff_bfd_link_hash_table_create,
2734 _bfd_generic_link_hash_table_free,
2735 _bfd_xcoff_bfd_link_add_symbols,
2736 _bfd_generic_link_just_syms,
2737 _bfd_xcoff_bfd_final_link,
2738 _bfd_generic_link_split_section,
2739 bfd_generic_gc_sections,
2740 bfd_generic_merge_sections,
2741 bfd_generic_is_group_section,
2742 bfd_generic_discard_group,
2743
2744 /* Dynamic */
2745 _bfd_xcoff_get_dynamic_symtab_upper_bound,
2746 _bfd_xcoff_canonicalize_dynamic_symtab,
2747 _bfd_nodynamic_get_synthetic_symtab,
2748 _bfd_xcoff_get_dynamic_reloc_upper_bound,
2749 _bfd_xcoff_canonicalize_dynamic_reloc,
2750
2751 /* Opposite endian version, none exists */
2752 NULL,
2753
2754 (void *) &bfd_xcoff_backend_data,
2755 };
2756
2757 extern const bfd_target *xcoff64_core_p
2758 PARAMS ((bfd *));
2759 extern bfd_boolean xcoff64_core_file_matches_executable_p
2760 PARAMS ((bfd *, bfd *));
2761 extern char *xcoff64_core_file_failing_command
2762 PARAMS ((bfd *));
2763 extern int xcoff64_core_file_failing_signal
2764 PARAMS ((bfd *));
2765
2766 /* AIX 5 */
2767 static const struct xcoff_backend_data_rec bfd_xcoff_aix5_backend_data =
2768 {
2769 { /* COFF backend, defined in libcoff.h. */
2770 _bfd_xcoff64_swap_aux_in,
2771 _bfd_xcoff64_swap_sym_in,
2772 _bfd_xcoff64_swap_lineno_in,
2773 _bfd_xcoff64_swap_aux_out,
2774 _bfd_xcoff64_swap_sym_out,
2775 _bfd_xcoff64_swap_lineno_out,
2776 xcoff64_swap_reloc_out,
2777 coff_swap_filehdr_out,
2778 coff_swap_aouthdr_out,
2779 coff_swap_scnhdr_out,
2780 FILHSZ,
2781 AOUTSZ,
2782 SCNHSZ,
2783 SYMESZ,
2784 AUXESZ,
2785 RELSZ,
2786 LINESZ,
2787 FILNMLEN,
2788 TRUE, /* _bfd_coff_long_filenames */
2789 FALSE, /* _bfd_coff_long_section_names */
2790 3, /* _bfd_coff_default_section_alignment_power */
2791 TRUE, /* _bfd_coff_force_symnames_in_strings */
2792 4, /* _bfd_coff_debug_string_prefix_length */
2793 coff_swap_filehdr_in,
2794 coff_swap_aouthdr_in,
2795 coff_swap_scnhdr_in,
2796 xcoff64_swap_reloc_in,
2797 xcoff64_bad_format_hook,
2798 coff_set_arch_mach_hook,
2799 coff_mkobject_hook,
2800 styp_to_sec_flags,
2801 coff_set_alignment_hook,
2802 coff_slurp_symbol_table,
2803 symname_in_debug_hook,
2804 coff_pointerize_aux_hook,
2805 coff_print_aux,
2806 dummy_reloc16_extra_cases,
2807 dummy_reloc16_estimate,
2808 NULL, /* bfd_coff_sym_is_global */
2809 coff_compute_section_file_positions,
2810 NULL, /* _bfd_coff_start_final_link */
2811 xcoff64_ppc_relocate_section,
2812 coff_rtype_to_howto,
2813 NULL, /* _bfd_coff_adjust_symndx */
2814 _bfd_generic_link_add_one_symbol,
2815 coff_link_output_has_begun,
2816 coff_final_link_postscript
2817 },
2818
2819 U64_TOCMAGIC, /* magic number */
2820 bfd_arch_powerpc,
2821 bfd_mach_ppc_620,
2822
2823 /* Function pointers to xcoff specific swap routines. */
2824 xcoff64_swap_ldhdr_in,
2825 xcoff64_swap_ldhdr_out,
2826 xcoff64_swap_ldsym_in,
2827 xcoff64_swap_ldsym_out,
2828 xcoff64_swap_ldrel_in,
2829 xcoff64_swap_ldrel_out,
2830
2831 /* Sizes. */
2832 LDHDRSZ,
2833 LDSYMSZ,
2834 LDRELSZ,
2835 24, /* _xcoff_function_descriptor_size */
2836 0, /* _xcoff_small_aout_header_size */
2837 /* Versions. */
2838 2, /* _xcoff_ldhdr_version */
2839
2840 _bfd_xcoff64_put_symbol_name,
2841 _bfd_xcoff64_put_ldsymbol_name,
2842 &xcoff64_dynamic_reloc,
2843 xcoff64_create_csect_from_smclas,
2844
2845 /* Lineno and reloc count overflow. */
2846 xcoff64_is_lineno_count_overflow,
2847 xcoff64_is_reloc_count_overflow,
2848
2849 xcoff64_loader_symbol_offset,
2850 xcoff64_loader_reloc_offset,
2851
2852 /* glink. */
2853 &xcoff64_glink_code[0],
2854 40, /* _xcoff_glink_size */
2855
2856 /* rtinit. */
2857 88, /* _xcoff_rtinit_size */
2858 xcoff64_generate_rtinit,
2859 };
2860
2861 /* The transfer vector that leads the outside world to all of the above. */
2862 const bfd_target aix5coff64_vec =
2863 {
2864 "aix5coff64-rs6000",
2865 bfd_target_xcoff_flavour,
2866 BFD_ENDIAN_BIG, /* data byte order is big */
2867 BFD_ENDIAN_BIG, /* header byte order is big */
2868
2869 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC
2870 | HAS_SYMS | HAS_LOCALS | WP_TEXT),
2871
2872 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA,
2873 0, /* leading char */
2874 '/', /* ar_pad_char */
2875 15, /* ar_max_namelen */
2876
2877 /* data */
2878 bfd_getb64,
2879 bfd_getb_signed_64,
2880 bfd_putb64,
2881 bfd_getb32,
2882 bfd_getb_signed_32,
2883 bfd_putb32,
2884 bfd_getb16,
2885 bfd_getb_signed_16,
2886 bfd_putb16,
2887
2888 /* hdrs */
2889 bfd_getb64,
2890 bfd_getb_signed_64,
2891 bfd_putb64,
2892 bfd_getb32,
2893 bfd_getb_signed_32,
2894 bfd_putb32,
2895 bfd_getb16,
2896 bfd_getb_signed_16,
2897 bfd_putb16,
2898
2899 { /* bfd_check_format */
2900 _bfd_dummy_target,
2901 coff_object_p,
2902 xcoff64_archive_p,
2903 xcoff64_core_p
2904 },
2905
2906 { /* bfd_set_format */
2907 bfd_false,
2908 coff_mkobject,
2909 _bfd_generic_mkarchive,
2910 bfd_false
2911 },
2912
2913 {/* bfd_write_contents */
2914 bfd_false,
2915 xcoff64_write_object_contents,
2916 _bfd_xcoff_write_archive_contents,
2917 bfd_false
2918 },
2919
2920 /* Generic */
2921 bfd_true,
2922 bfd_true,
2923 coff_new_section_hook,
2924 _bfd_generic_get_section_contents,
2925 _bfd_generic_get_section_contents_in_window,
2926
2927 /* Copy */
2928 _bfd_xcoff_copy_private_bfd_data,
2929 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2930 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true),
2931 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true),
2932 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true),
2933 ((bfd_boolean (*) (bfd *, flagword)) bfd_true),
2934 ((bfd_boolean (*) (bfd *, void * )) bfd_true),
2935
2936 /* Core */
2937 xcoff64_core_file_failing_command,
2938 xcoff64_core_file_failing_signal,
2939 xcoff64_core_file_matches_executable_p,
2940
2941 /* Archive */
2942 xcoff64_slurp_armap,
2943 bfd_false,
2944 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) bfd_false),
2945 bfd_dont_truncate_arname,
2946 _bfd_xcoff_write_armap,
2947 _bfd_xcoff_read_ar_hdr,
2948 xcoff64_openr_next_archived_file,
2949 _bfd_generic_get_elt_at_index,
2950 _bfd_xcoff_stat_arch_elt,
2951 bfd_true,
2952
2953 /* Symbols */
2954 coff_get_symtab_upper_bound,
2955 coff_canonicalize_symtab,
2956 coff_make_empty_symbol,
2957 coff_print_symbol,
2958 coff_get_symbol_info,
2959 _bfd_xcoff_is_local_label_name,
2960 coff_get_lineno,
2961 coff_find_nearest_line,
2962 coff_bfd_make_debug_symbol,
2963 _bfd_generic_read_minisymbols,
2964 _bfd_generic_minisymbol_to_symbol,
2965
2966 /* Reloc */
2967 coff_get_reloc_upper_bound,
2968 coff_canonicalize_reloc,
2969 xcoff64_reloc_type_lookup,
2970
2971 /* Write */
2972 coff_set_arch_mach,
2973 coff_set_section_contents,
2974
2975 /* Link */
2976 xcoff64_sizeof_headers,
2977 bfd_generic_get_relocated_section_contents,
2978 bfd_generic_relax_section,
2979 _bfd_xcoff_bfd_link_hash_table_create,
2980 _bfd_generic_link_hash_table_free,
2981 _bfd_xcoff_bfd_link_add_symbols,
2982 _bfd_generic_link_just_syms,
2983 _bfd_xcoff_bfd_final_link,
2984 _bfd_generic_link_split_section,
2985 bfd_generic_gc_sections,
2986 bfd_generic_merge_sections,
2987 bfd_generic_is_group_section,
2988 bfd_generic_discard_group,
2989
2990 /* Dynamic */
2991 _bfd_xcoff_get_dynamic_symtab_upper_bound,
2992 _bfd_xcoff_canonicalize_dynamic_symtab,
2993 _bfd_nodynamic_get_synthetic_symtab,
2994 _bfd_xcoff_get_dynamic_reloc_upper_bound,
2995 _bfd_xcoff_canonicalize_dynamic_reloc,
2996
2997 /* Opposite endian version, none exists. */
2998 NULL,
2999
3000 (void *) & bfd_xcoff_aix5_backend_data,
3001 };
git-cvsimport of binutils cvsroot