Commit | Line | Data |
---|---|---|
7f6d05e8 | 1 | /* BFD back-end for IBM RS/6000 "XCOFF64" files. |
7898deda | 2 | Copyright 2000, 2001 |
7f6d05e8 CP |
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 | ||
7f6d05e8 CP |
23 | #include "bfd.h" |
24 | #include "sysdep.h" | |
beb1bf64 | 25 | #include "bfdlink.h" |
7f6d05e8 CP |
26 | #include "libbfd.h" |
27 | #include "coff/internal.h" | |
beb1bf64 | 28 | #include "coff/xcoff.h" |
7f6d05e8 | 29 | #include "coff/rs6k64.h" |
beb1bf64 TR |
30 | #include "libcoff.h" |
31 | #include "libxcoff.h" | |
7f6d05e8 | 32 | |
7f6d05e8 CP |
33 | #define GET_FILEHDR_SYMPTR bfd_h_get_64 |
34 | #define PUT_FILEHDR_SYMPTR bfd_h_put_64 | |
35 | #define GET_AOUTHDR_DATA_START bfd_h_get_64 | |
36 | #define PUT_AOUTHDR_DATA_START bfd_h_put_64 | |
37 | #define GET_AOUTHDR_TEXT_START bfd_h_get_64 | |
38 | #define PUT_AOUTHDR_TEXT_START bfd_h_put_64 | |
39 | #define GET_AOUTHDR_TSIZE bfd_h_get_64 | |
40 | #define PUT_AOUTHDR_TSIZE bfd_h_put_64 | |
41 | #define GET_AOUTHDR_DSIZE bfd_h_get_64 | |
42 | #define PUT_AOUTHDR_DSIZE bfd_h_put_64 | |
43 | #define GET_AOUTHDR_BSIZE bfd_h_get_64 | |
44 | #define PUT_AOUTHDR_BSIZE bfd_h_put_64 | |
45 | #define GET_AOUTHDR_ENTRY bfd_h_get_64 | |
46 | #define PUT_AOUTHDR_ENTRY bfd_h_put_64 | |
47 | #define GET_SCNHDR_PADDR bfd_h_get_64 | |
48 | #define PUT_SCNHDR_PADDR bfd_h_put_64 | |
49 | #define GET_SCNHDR_VADDR bfd_h_get_64 | |
50 | #define PUT_SCNHDR_VADDR bfd_h_put_64 | |
51 | #define GET_SCNHDR_SIZE bfd_h_get_64 | |
52 | #define PUT_SCNHDR_SIZE bfd_h_put_64 | |
53 | #define GET_SCNHDR_SCNPTR bfd_h_get_64 | |
54 | #define PUT_SCNHDR_SCNPTR bfd_h_put_64 | |
55 | #define GET_SCNHDR_RELPTR bfd_h_get_64 | |
56 | #define PUT_SCNHDR_RELPTR bfd_h_put_64 | |
57 | #define GET_SCNHDR_LNNOPTR bfd_h_get_64 | |
58 | #define PUT_SCNHDR_LNNOPTR bfd_h_put_64 | |
59 | #define GET_SCNHDR_NRELOC bfd_h_get_32 | |
60 | #define MAX_SCNHDR_NRELOC 0xffffffff | |
61 | #define PUT_SCNHDR_NRELOC bfd_h_put_32 | |
62 | #define GET_SCNHDR_NLNNO bfd_h_get_32 | |
63 | #define MAX_SCNHDR_NLNNO 0xffffffff | |
64 | #define PUT_SCNHDR_NLNNO bfd_h_put_32 | |
65 | #define GET_RELOC_VADDR bfd_h_get_64 | |
66 | #define PUT_RELOC_VADDR bfd_h_put_64 | |
67 | ||
68 | #define COFF_FORCE_SYMBOLS_IN_STRINGS | |
69 | #define COFF_DEBUG_STRING_WIDE_PREFIX | |
70 | ||
beb1bf64 | 71 | |
7f6d05e8 CP |
72 | #define COFF_ADJUST_SCNHDR_OUT_POST(ABFD,INT,EXT) \ |
73 | do { \ | |
74 | memset (((SCNHDR *)EXT)->s_pad, 0, sizeof (((SCNHDR *)EXT)->s_pad));\ | |
beb1bf64 TR |
75 | } while(0) |
76 | ||
77 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
78 | from smaller values. Start with zero, widen, *then* decrement. */ | |
79 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
80 | ||
7f6d05e8 CP |
81 | |
82 | #define NO_COFF_LINENOS | |
83 | ||
beb1bf64 TR |
84 | #define coff_SWAP_lineno_in _bfd_xcoff64_swap_lineno_in |
85 | #define coff_SWAP_lineno_out _bfd_xcoff64_swap_lineno_out | |
7f6d05e8 CP |
86 | |
87 | #define PUTWORD bfd_h_put_32 | |
88 | #define PUTHALF bfd_h_put_16 | |
89 | #define PUTBYTE bfd_h_put_8 | |
90 | #define GETWORD bfd_h_get_32 | |
91 | #define GETHALF bfd_h_get_16 | |
92 | #define GETBYTE bfd_h_get_8 | |
93 | ||
beb1bf64 TR |
94 | |
95 | /* For XCOFF64, the effective width of symndx changes depending on | |
7f6d05e8 CP |
96 | whether we are the first entry. Sigh. */ |
97 | static void | |
beb1bf64 | 98 | _bfd_xcoff64_swap_lineno_in (abfd, ext1, in1) |
7f6d05e8 CP |
99 | bfd *abfd; |
100 | PTR ext1; | |
101 | PTR in1; | |
102 | { | |
103 | LINENO *ext = (LINENO *)ext1; | |
104 | struct internal_lineno *in = (struct internal_lineno *)in1; | |
105 | ||
106 | in->l_lnno = bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno)); | |
107 | if (in->l_lnno == 0) | |
beb1bf64 | 108 | in->l_addr.l_symndx = |
7f6d05e8 CP |
109 | bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx); |
110 | else | |
beb1bf64 TR |
111 | in->l_addr.l_paddr = |
112 | bfd_h_get_64(abfd, (bfd_byte *) ext->l_addr.l_paddr); | |
7f6d05e8 CP |
113 | } |
114 | ||
115 | static unsigned int | |
beb1bf64 | 116 | _bfd_xcoff64_swap_lineno_out (abfd, inp, outp) |
7f6d05e8 CP |
117 | bfd *abfd; |
118 | PTR inp; | |
119 | PTR outp; | |
120 | { | |
121 | struct internal_lineno *in = (struct internal_lineno *)inp; | |
122 | struct external_lineno *ext = (struct external_lineno *)outp; | |
123 | PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *) | |
124 | ext->l_addr.l_symndx); | |
125 | ||
126 | bfd_h_put_32 (abfd, in->l_lnno, (bfd_byte *) (ext->l_lnno)); | |
127 | if (in->l_lnno == 0) | |
128 | bfd_h_put_32 (abfd, in->l_addr.l_symndx, (bfd_byte *)ext->l_addr.l_symndx); | |
129 | else | |
beb1bf64 | 130 | bfd_h_put_64 (abfd, in->l_addr.l_paddr, (bfd_byte *)ext->l_addr.l_paddr); |
7f6d05e8 CP |
131 | |
132 | return bfd_coff_linesz (abfd); | |
133 | } | |
134 | ||
beb1bf64 TR |
135 | |
136 | static void _bfd_xcoff64_swap_sym_in PARAMS ((bfd *, PTR, PTR)); | |
137 | static unsigned int _bfd_xcoff64_swap_sym_out PARAMS ((bfd *, PTR, PTR)); | |
138 | static void _bfd_xcoff64_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | |
139 | static unsigned int _bfd_xcoff64_swap_aux_out PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | |
7f6d05e8 CP |
140 | |
141 | static void | |
beb1bf64 | 142 | _bfd_xcoff64_swap_sym_in (abfd, ext1, in1) |
7f6d05e8 CP |
143 | bfd *abfd; |
144 | PTR ext1; | |
145 | PTR in1; | |
146 | { | |
beb1bf64 | 147 | struct external_syment *ext = (struct external_syment *)ext1; |
7f6d05e8 CP |
148 | struct internal_syment *in = (struct internal_syment *)in1; |
149 | ||
7f6d05e8 | 150 | in->_n._n_n._n_zeroes = 0; |
beb1bf64 | 151 | in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e_offset); |
03d411a9 | 152 | in->n_value = bfd_h_get_64(abfd, (bfd_byte *) ext->e_value); |
7f6d05e8 CP |
153 | in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); |
154 | in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); | |
155 | in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); | |
156 | in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); | |
157 | } | |
158 | ||
159 | static unsigned int | |
beb1bf64 | 160 | _bfd_xcoff64_swap_sym_out (abfd, inp, extp) |
7f6d05e8 CP |
161 | bfd *abfd; |
162 | PTR inp; | |
163 | PTR extp; | |
164 | { | |
165 | struct internal_syment *in = (struct internal_syment *)inp; | |
beb1bf64 | 166 | struct external_syment *ext =(struct external_syment *)extp; |
7f6d05e8 | 167 | |
beb1bf64 | 168 | bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e_offset); |
03d411a9 | 169 | bfd_h_put_64(abfd, in->n_value , (bfd_byte *) ext->e_value); |
7f6d05e8 CP |
170 | bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum); |
171 | bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type); | |
172 | bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); | |
173 | bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); | |
174 | return bfd_coff_symesz (abfd); | |
175 | } | |
176 | ||
177 | static void | |
beb1bf64 | 178 | _bfd_xcoff64_swap_aux_in (abfd, ext1, type, class, indx, numaux, in1) |
7f6d05e8 CP |
179 | bfd *abfd; |
180 | PTR ext1; | |
181 | int type; | |
182 | int class; | |
183 | int indx; | |
184 | int numaux; | |
185 | PTR in1; | |
186 | { | |
beb1bf64 | 187 | union external_auxent *ext = (union external_auxent *)ext1; |
7f6d05e8 CP |
188 | union internal_auxent *in = (union internal_auxent *)in1; |
189 | ||
190 | switch (class) { | |
191 | case C_FILE: | |
beb1bf64 | 192 | if (ext->x_file.x_n.x_zeroes == 0) { |
7f6d05e8 | 193 | in->x_file.x_n.x_zeroes = 0; |
beb1bf64 | 194 | in->x_file.x_n.x_offset = |
7f6d05e8 CP |
195 | bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset); |
196 | } else { | |
beb1bf64 TR |
197 | memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN); |
198 | } | |
7f6d05e8 CP |
199 | goto end; |
200 | ||
201 | /* RS/6000 "csect" auxents */ | |
202 | case C_EXT: | |
203 | case C_HIDEXT: | |
204 | if (indx + 1 == numaux) | |
205 | { | |
beb1bf64 TR |
206 | bfd_signed_vma h = 0; |
207 | bfd_vma l = 0; | |
208 | ||
209 | h = bfd_h_get_signed_32(abfd, ext->x_csect.x_scnlen_hi); | |
210 | l = bfd_h_get_32 (abfd, ext->x_csect.x_scnlen_lo); | |
211 | ||
212 | in->x_csect.x_scnlen.l = h << 32 | (l & 0xffffffff); | |
213 | ||
7f6d05e8 CP |
214 | in->x_csect.x_parmhash = bfd_h_get_32 (abfd, |
215 | ext->x_csect.x_parmhash); | |
216 | in->x_csect.x_snhash = bfd_h_get_16 (abfd, ext->x_csect.x_snhash); | |
217 | /* We don't have to hack bitfields in x_smtyp because it's | |
218 | defined by shifts-and-ands, which are equivalent on all | |
219 | byte orders. */ | |
220 | in->x_csect.x_smtyp = bfd_h_get_8 (abfd, ext->x_csect.x_smtyp); | |
221 | in->x_csect.x_smclas = bfd_h_get_8 (abfd, ext->x_csect.x_smclas); | |
222 | goto end; | |
223 | } | |
224 | break; | |
225 | ||
226 | case C_STAT: | |
227 | case C_LEAFSTAT: | |
228 | case C_HIDDEN: | |
229 | if (type == T_NULL) { | |
230 | /* PE defines some extra fields; we zero them out for | |
231 | safety. */ | |
232 | in->x_scn.x_checksum = 0; | |
233 | in->x_scn.x_associated = 0; | |
234 | in->x_scn.x_comdat = 0; | |
235 | ||
236 | goto end; | |
237 | } | |
238 | break; | |
239 | } | |
240 | ||
241 | if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class)) | |
242 | { | |
243 | in->x_sym.x_fcnary.x_fcn.x_lnnoptr = bfd_h_get_64(abfd, (bfd_byte *) | |
244 | ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); | |
245 | in->x_sym.x_fcnary.x_fcn.x_endndx.l = bfd_h_get_32(abfd, (bfd_byte *) | |
246 | ext->x_sym.x_fcnary.x_fcn.x_endndx); | |
247 | } | |
248 | if (ISFCN(type)) { | |
249 | in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_fsize); | |
250 | } | |
251 | else { | |
252 | in->x_sym.x_misc.x_lnsz.x_lnno = bfd_h_get_32(abfd, (bfd_byte *) | |
253 | ext->x_sym.x_fcnary.x_lnsz.x_lnno); | |
254 | in->x_sym.x_misc.x_lnsz.x_size = bfd_h_get_16(abfd, (bfd_byte *) | |
255 | ext->x_sym.x_fcnary.x_lnsz.x_size); | |
256 | } | |
257 | ||
258 | end: ; | |
259 | /* the semicolon is because MSVC doesn't like labels at | |
beb1bf64 | 260 | end of block. */ |
7f6d05e8 CP |
261 | |
262 | } | |
263 | ||
beb1bf64 TR |
264 | |
265 | ||
7f6d05e8 | 266 | static unsigned int |
beb1bf64 | 267 | _bfd_xcoff64_swap_aux_out (abfd, inp, type, class, indx, numaux, extp) |
7f6d05e8 CP |
268 | bfd *abfd; |
269 | PTR inp; | |
270 | int type; | |
271 | int class; | |
272 | int indx ATTRIBUTE_UNUSED; | |
273 | int numaux ATTRIBUTE_UNUSED; | |
274 | PTR extp; | |
275 | { | |
276 | union internal_auxent *in = (union internal_auxent *)inp; | |
beb1bf64 | 277 | union external_auxent *ext = (union external_auxent *)extp; |
7f6d05e8 CP |
278 | |
279 | memset((PTR)ext, 0, bfd_coff_auxesz (abfd)); | |
280 | switch (class) | |
281 | { | |
282 | case C_FILE: | |
beb1bf64 TR |
283 | if (ext->x_file.x_n.x_zeroes == 0) { |
284 | bfd_h_put_32 (abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes); | |
285 | bfd_h_put_32 (abfd, in->x_file.x_n.x_offset, | |
7f6d05e8 | 286 | (bfd_byte *) ext->x_file.x_n.x_offset); |
beb1bf64 | 287 | } else { |
7f6d05e8 | 288 | memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN); |
beb1bf64 TR |
289 | } |
290 | bfd_h_put_8 (abfd, _AUX_FILE, (bfd_byte *) ext->x_auxtype.x_auxtype); | |
7f6d05e8 CP |
291 | goto end; |
292 | ||
293 | /* RS/6000 "csect" auxents */ | |
294 | case C_EXT: | |
295 | case C_HIDEXT: | |
296 | if (indx + 1 == numaux) | |
297 | { | |
beb1bf64 TR |
298 | bfd_vma temp; |
299 | ||
300 | temp = in->x_csect.x_scnlen.l & 0xffffffff; | |
301 | bfd_h_put_32 (abfd, temp, ext->x_csect.x_scnlen_lo); | |
302 | temp = in->x_csect.x_scnlen.l >> 32; | |
303 | bfd_h_put_32 (abfd, temp, ext->x_csect.x_scnlen_hi); | |
304 | bfd_h_put_32 (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash); | |
305 | bfd_h_put_16 (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash); | |
7f6d05e8 CP |
306 | /* We don't have to hack bitfields in x_smtyp because it's |
307 | defined by shifts-and-ands, which are equivalent on all | |
308 | byte orders. */ | |
beb1bf64 TR |
309 | bfd_h_put_8 (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp); |
310 | bfd_h_put_8 (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas); | |
311 | bfd_h_put_8 (abfd, _AUX_CSECT, (bfd_byte *) ext->x_auxtype.x_auxtype); | |
7f6d05e8 CP |
312 | goto end; |
313 | } | |
314 | break; | |
315 | ||
316 | case C_STAT: | |
317 | case C_LEAFSTAT: | |
318 | case C_HIDDEN: | |
319 | if (type == T_NULL) { | |
320 | goto end; | |
321 | } | |
322 | break; | |
323 | } | |
324 | ||
325 | if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class)) | |
326 | { | |
beb1bf64 TR |
327 | bfd_h_put_64(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, |
328 | (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); | |
329 | bfd_h_put_8 (abfd, _AUX_FCN, (bfd_byte *) ext->x_auxtype.x_auxtype); | |
330 | bfd_h_put_32(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, | |
331 | (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx); | |
7f6d05e8 CP |
332 | } |
333 | if (ISFCN (type)) | |
beb1bf64 TR |
334 | bfd_h_put_32 (abfd, in->x_sym.x_misc.x_fsize, |
335 | (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_fsize); | |
7f6d05e8 CP |
336 | else |
337 | { | |
beb1bf64 | 338 | bfd_h_put_32(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, |
7f6d05e8 | 339 | (bfd_byte *)ext->x_sym.x_fcnary.x_lnsz.x_lnno); |
beb1bf64 | 340 | bfd_h_put_16(abfd, in->x_sym.x_misc.x_lnsz.x_size, |
7f6d05e8 CP |
341 | (bfd_byte *)ext->x_sym.x_fcnary.x_lnsz.x_size); |
342 | } | |
343 | ||
344 | end: | |
beb1bf64 | 345 | |
7f6d05e8 CP |
346 | return bfd_coff_auxesz (abfd); |
347 | } | |
348 | ||
beb1bf64 TR |
349 | static boolean |
350 | _bfd_xcoff64_put_symbol_name (bfd *abfd, struct bfd_strtab_hash *strtab, | |
351 | struct internal_syment *sym, | |
352 | const char *name) { | |
353 | boolean hash; | |
354 | bfd_size_type indx; | |
355 | ||
356 | hash = true; | |
357 | ||
358 | if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0) | |
359 | hash = false; | |
360 | ||
361 | indx = _bfd_stringtab_add (strtab, name, hash, false); | |
362 | ||
363 | if (indx == (bfd_size_type) -1) | |
364 | return false; | |
365 | ||
366 | sym->_n._n_n._n_zeroes = 0; | |
367 | sym->_n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
368 | ||
369 | return true; | |
370 | } | |
371 | ||
372 | static boolean | |
373 | _bfd_xcoff64_put_ldsymbol_name (abfd, ldinfo, ldsym, name) | |
374 | bfd *abfd ATTRIBUTE_UNUSED; | |
375 | struct xcoff_loader_info *ldinfo; | |
376 | struct internal_ldsym *ldsym; | |
377 | const char *name; | |
378 | { | |
379 | ||
380 | size_t len; | |
381 | len = strlen (name); | |
382 | ||
383 | if (ldinfo->string_size + len + 3 > ldinfo->string_alc){ | |
384 | size_t newalc; | |
385 | bfd_byte *newstrings; | |
386 | ||
387 | newalc = ldinfo->string_alc * 2; | |
388 | if (newalc == 0) | |
389 | newalc = 32; | |
390 | while (ldinfo->string_size + len + 3 > newalc) | |
391 | newalc *= 2; | |
392 | ||
393 | newstrings = ((bfd_byte *) | |
394 | bfd_realloc ((PTR) ldinfo->strings, newalc)); | |
395 | if (newstrings == NULL) { | |
396 | ldinfo->failed = true; | |
397 | return false; | |
398 | } | |
399 | ldinfo->string_alc = newalc; | |
400 | ldinfo->strings = newstrings; | |
401 | } | |
402 | ||
403 | bfd_put_16 (ldinfo->output_bfd, len + 1, | |
404 | ldinfo->strings + ldinfo->string_size); | |
405 | strcpy (ldinfo->strings + ldinfo->string_size + 2, name); | |
406 | ldsym->_l._l_l._l_zeroes = 0; | |
407 | ldsym->_l._l_l._l_offset = ldinfo->string_size + 2; | |
408 | ldinfo->string_size += len + 3; | |
409 | ||
410 | return true; | |
411 | } | |
412 | ||
beb1bf64 TR |
413 | extern boolean _bfd_xcoff_mkobject PARAMS ((bfd *)); |
414 | extern boolean _bfd_xcoff_copy_private_bfd_data PARAMS ((bfd *, bfd *)); | |
415 | extern boolean _bfd_xcoff_is_local_label_name PARAMS ((bfd *, const char *)); | |
416 | extern void xcoff64_rtype2howto | |
417 | PARAMS ((arelent *, struct internal_reloc *)); | |
418 | extern reloc_howto_type * xcoff64_reloc_type_lookup | |
419 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
420 | extern boolean _bfd_xcoff_slurp_armap PARAMS ((bfd *)); | |
421 | extern PTR _bfd_xcoff_read_ar_hdr PARAMS ((bfd *)); | |
422 | extern bfd *_bfd_xcoff_openr_next_archived_file PARAMS ((bfd *, bfd *)); | |
423 | extern int _bfd_xcoff_generic_stat_arch_elt PARAMS ((bfd *, struct stat *)); | |
424 | extern boolean _bfd_xcoff_write_armap | |
425 | PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); | |
426 | extern boolean _bfd_xcoff_write_archive_contents PARAMS ((bfd *)); | |
427 | extern int _bfd_xcoff_sizeof_headers PARAMS ((bfd *, boolean)); | |
428 | extern void _bfd_xcoff_swap_sym_in PARAMS ((bfd *, PTR, PTR)); | |
429 | extern unsigned int _bfd_xcoff_swap_sym_out PARAMS ((bfd *, PTR, PTR)); | |
430 | extern void _bfd_xcoff_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | |
431 | extern unsigned int _bfd_xcoff_swap_aux_out PARAMS ((bfd *, PTR, int, int, int, int, PTR)); | |
432 | ||
433 | /* coffcode.h needs these to be defined */ | |
434 | /* Internalcoff.h and coffcode.h modify themselves based on these flags. */ | |
435 | #define XCOFF64 | |
436 | #define RS6000COFF_C 1 | |
437 | ||
438 | #define SELECT_RELOC(internal, howto) \ | |
439 | { \ | |
440 | internal.r_type = howto->type; \ | |
441 | internal.r_size = \ | |
442 | ((howto->complain_on_overflow == complain_overflow_signed \ | |
443 | ? 0x80 \ | |
444 | : 0) \ | |
445 | | (howto->bitsize - 1)); \ | |
446 | } | |
447 | ||
448 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) | |
449 | #define COFF_LONG_FILENAMES | |
450 | #define NO_COFF_SYMBOLS | |
451 | #define RTYPE2HOWTO(cache_ptr, dst) xcoff64_rtype2howto (cache_ptr, dst) | |
452 | #define coff_mkobject _bfd_xcoff_mkobject | |
453 | #define coff_bfd_copy_private_bfd_data _bfd_xcoff_copy_private_bfd_data | |
454 | #define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name | |
455 | #define coff_bfd_reloc_type_lookup xcoff64_reloc_type_lookup | |
b55039f4 L |
456 | #ifdef AIX_CORE |
457 | extern const bfd_target * rs6000coff_core_p (); | |
458 | extern boolean rs6000coff_core_file_matches_executable_p (); | |
459 | extern char *rs6000coff_core_file_failing_command PARAMS ((bfd *abfd)); | |
460 | extern int rs6000coff_core_file_failing_signal PARAMS ((bfd *abfd)); | |
beb1bf64 | 461 | #define CORE_FILE_P rs6000coff_core_p |
b55039f4 L |
462 | #define coff_core_file_failing_command \ |
463 | rs6000coff_core_file_failing_command | |
464 | #define coff_core_file_failing_signal \ | |
465 | rs6000coff_core_file_failing_signal | |
466 | #define coff_core_file_matches_executable_p \ | |
467 | rs6000coff_core_file_matches_executable_p | |
468 | #else | |
469 | #define CORE_FILE_P _bfd_dummy_target | |
470 | #define coff_core_file_failing_command \ | |
471 | _bfd_nocore_core_file_failing_command | |
472 | #define coff_core_file_failing_signal \ | |
473 | _bfd_nocore_core_file_failing_signal | |
474 | #define coff_core_file_matches_executable_p \ | |
475 | _bfd_nocore_core_file_matches_executable_p | |
476 | #endif | |
beb1bf64 TR |
477 | #define coff_SWAP_sym_in _bfd_xcoff64_swap_sym_in |
478 | #define coff_SWAP_sym_out _bfd_xcoff64_swap_sym_out | |
479 | #define coff_SWAP_aux_in _bfd_xcoff64_swap_aux_in | |
480 | #define coff_SWAP_aux_out _bfd_xcoff64_swap_aux_out | |
481 | ||
482 | ||
483 | ||
484 | #include "coffcode.h" | |
485 | ||
486 | /* Routines to swap information in the XCOFF .loader section. If we | |
487 | ever need to write an XCOFF loader, this stuff will need to be | |
488 | moved to another file shared by the linker (which XCOFF calls the | |
489 | ``binder'') and the loader. */ | |
490 | ||
491 | /* Swap in the ldhdr structure. */ | |
492 | ||
493 | static void | |
494 | xcoff64_swap_ldhdr_in (abfd, src, dst) | |
495 | bfd *abfd; | |
496 | const struct external_ldhdr *src; | |
497 | struct internal_ldhdr *dst; | |
498 | { | |
499 | dst->l_version = bfd_get_32 (abfd, src->l_version); | |
500 | dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms); | |
501 | dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc); | |
502 | dst->l_istlen = bfd_get_32 (abfd, src->l_istlen); | |
503 | dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid); | |
504 | dst->l_stlen = bfd_get_32 (abfd, src->l_stlen); | |
505 | dst->l_impoff = bfd_get_64 (abfd, src->l_impoff); | |
506 | dst->l_stoff = bfd_get_64 (abfd, src->l_stoff); | |
507 | dst->l_symoff = bfd_get_64 (abfd, src->l_symoff); | |
508 | dst->l_rldoff = bfd_get_64 (abfd, src->l_rldoff); | |
509 | } | |
510 | ||
511 | /* Swap out the ldhdr structure. */ | |
512 | ||
513 | static void | |
514 | xcoff64_swap_ldhdr_out (abfd, src, dst) | |
515 | bfd *abfd; | |
516 | const struct internal_ldhdr *src; | |
517 | struct external_ldhdr *dst; | |
518 | { | |
519 | bfd_put_32 (abfd, src->l_version, dst->l_version); | |
520 | bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms); | |
521 | bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc); | |
522 | bfd_put_32 (abfd, src->l_istlen, dst->l_istlen); | |
523 | bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid); | |
524 | bfd_put_32 (abfd, src->l_stlen, dst->l_stlen); | |
525 | bfd_put_64 (abfd, src->l_impoff, dst->l_impoff); | |
526 | bfd_put_64 (abfd, src->l_stoff, dst->l_stoff); | |
527 | bfd_put_64 (abfd, src->l_symoff, dst->l_symoff); | |
528 | bfd_put_64 (abfd, src->l_rldoff, dst->l_rldoff); | |
529 | } | |
530 | ||
531 | /* Swap in the ldsym structure. */ | |
532 | ||
533 | static void | |
534 | xcoff64_swap_ldsym_in (abfd, src, dst) | |
535 | bfd *abfd; | |
536 | const struct external_ldsym *src; | |
537 | struct internal_ldsym *dst; | |
538 | { | |
539 | /* | |
540 | * XCOFF64 does not use l_zeroes like XCOFF32 | |
541 | * Set the internal l_zeroes to 0 so the common 32/64 code uses l_value | |
542 | * as an offset into the loader symbol table | |
543 | */ | |
544 | dst->_l._l_l._l_zeroes = 0; | |
545 | dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->l_offset); | |
546 | dst->l_value = bfd_get_64 (abfd, src->l_value); | |
547 | dst->l_scnum = bfd_get_16 (abfd, src->l_scnum); | |
548 | dst->l_smtype = bfd_get_8 (abfd, src->l_smtype); | |
549 | dst->l_smclas = bfd_get_8 (abfd, src->l_smclas); | |
550 | dst->l_ifile = bfd_get_32 (abfd, src->l_ifile); | |
551 | dst->l_parm = bfd_get_32 (abfd, src->l_parm); | |
552 | } | |
553 | ||
554 | /* Swap out the ldsym structure. */ | |
555 | ||
556 | static void | |
557 | xcoff64_swap_ldsym_out (abfd, src, dst) | |
558 | bfd *abfd; | |
559 | const struct internal_ldsym *src; | |
560 | struct external_ldsym *dst; | |
561 | { | |
562 | bfd_put_64 (abfd, src->l_value, dst->l_value); | |
563 | bfd_put_32 (abfd, src->_l._l_l._l_offset, dst->l_offset); | |
564 | bfd_put_16 (abfd, src->l_scnum, dst->l_scnum); | |
565 | bfd_put_8 (abfd, src->l_smtype, dst->l_smtype); | |
566 | bfd_put_8 (abfd, src->l_smclas, dst->l_smclas); | |
567 | bfd_put_32 (abfd, src->l_ifile, dst->l_ifile); | |
568 | bfd_put_32 (abfd, src->l_parm, dst->l_parm); | |
569 | } | |
570 | ||
571 | /* Swap in the ldrel structure. */ | |
572 | ||
573 | static void | |
574 | xcoff64_swap_ldrel_in (abfd, src, dst) | |
575 | bfd *abfd; | |
576 | const struct external_ldrel *src; | |
577 | struct internal_ldrel *dst; | |
578 | { | |
579 | dst->l_vaddr = bfd_get_64 (abfd, src->l_vaddr); | |
580 | dst->l_symndx = bfd_get_32 (abfd, src->l_symndx); | |
581 | dst->l_rtype = bfd_get_16 (abfd, src->l_rtype); | |
582 | dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm); | |
583 | } | |
584 | ||
585 | /* Swap out the ldrel structure. */ | |
586 | ||
587 | static void | |
588 | xcoff64_swap_ldrel_out (abfd, src, dst) | |
589 | bfd *abfd; | |
590 | const struct internal_ldrel *src; | |
591 | struct external_ldrel *dst; | |
592 | { | |
593 | bfd_put_64 (abfd, src->l_vaddr, dst->l_vaddr); | |
594 | bfd_put_16 (abfd, src->l_rtype, dst->l_rtype); | |
595 | bfd_put_16 (abfd, src->l_rsecnm, dst->l_rsecnm); | |
596 | bfd_put_32 (abfd, src->l_symndx, dst->l_symndx); | |
597 | } | |
598 | ||
599 | static boolean | |
600 | xcoff64_write_object_contents (abfd) | |
601 | bfd * abfd; | |
602 | { | |
603 | asection *current; | |
604 | boolean hasrelocs = false; | |
605 | boolean haslinno = false; | |
606 | file_ptr scn_base; | |
607 | file_ptr reloc_base; | |
608 | file_ptr lineno_base; | |
609 | file_ptr sym_base; | |
610 | unsigned long reloc_size = 0; | |
611 | unsigned long lnno_size = 0; | |
612 | boolean long_section_names; | |
613 | asection *text_sec = ((void *)0) ; | |
614 | asection *data_sec = ((void *)0) ; | |
615 | asection *bss_sec = ((void *)0) ; | |
616 | struct internal_filehdr internal_f; | |
617 | struct internal_aouthdr internal_a; | |
618 | ||
619 | bfd_set_error (bfd_error_system_call); | |
620 | ||
621 | if (abfd->output_has_begun == false) { | |
622 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
623 | return false; | |
624 | } | |
625 | ||
626 | /* Work out the size of the reloc and linno areas */ | |
627 | reloc_base = obj_relocbase (abfd); | |
628 | ||
629 | for (current = abfd->sections; current != NULL; current = current->next) { | |
630 | reloc_size += current->reloc_count * bfd_coff_relsz (abfd); | |
631 | } | |
632 | ||
633 | lineno_base = reloc_base + reloc_size; | |
634 | ||
635 | /* Make a pass through the symbol table to count line number entries and | |
636 | put them into the correct asections */ | |
637 | lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd); | |
638 | ||
639 | sym_base = lineno_base + lnno_size; | |
640 | ||
641 | /* Indicate in each section->line_filepos its actual file address */ | |
642 | for (current = abfd->sections; current != NULL; current = current->next) { | |
643 | if (current->lineno_count) { | |
644 | current->line_filepos = lineno_base; | |
645 | current->moving_line_filepos = lineno_base; | |
646 | lineno_base += current->lineno_count * bfd_coff_linesz (abfd); | |
647 | } else { | |
648 | current->line_filepos = 0; | |
649 | } | |
650 | ||
651 | if (current->reloc_count) { | |
652 | current->rel_filepos = reloc_base; | |
653 | reloc_base += current->reloc_count * bfd_coff_relsz (abfd); | |
654 | } else { | |
655 | current->rel_filepos = 0; | |
656 | } | |
657 | } | |
658 | ||
659 | if ((abfd->flags & EXEC_P) != 0) { | |
660 | scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); | |
661 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); | |
662 | } else { | |
663 | scn_base = bfd_coff_filhsz (abfd); | |
664 | internal_f.f_opthdr = 0; | |
665 | } | |
666 | ||
667 | internal_f.f_nscns = 0; | |
668 | ||
669 | if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) | |
670 | return false; | |
671 | ||
672 | long_section_names = false; | |
673 | for (current = abfd->sections; current != NULL; current = current->next) { | |
674 | ||
675 | struct internal_scnhdr section; | |
676 | struct external_scnhdr buff; | |
677 | ||
678 | internal_f.f_nscns++; | |
679 | ||
680 | strncpy (section.s_name, current->name, SCNNMLEN); | |
681 | ||
682 | section.s_vaddr = current->vma; | |
683 | section.s_paddr = current->lma; | |
684 | section.s_size = current->_raw_size; | |
685 | ||
686 | /* | |
687 | If this section has no size or is unloadable then the scnptr | |
688 | will be 0 too | |
689 | */ | |
690 | if (current->_raw_size == 0 || | |
691 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) { | |
692 | section.s_scnptr = 0; | |
693 | } else { | |
694 | section.s_scnptr = current->filepos; | |
695 | } | |
696 | ||
697 | section.s_relptr = current->rel_filepos; | |
698 | section.s_lnnoptr = current->line_filepos; | |
699 | section.s_nreloc = current->reloc_count; | |
700 | ||
701 | section.s_nlnno = current->lineno_count; | |
702 | if (current->reloc_count != 0) | |
703 | hasrelocs = true; | |
704 | if (current->lineno_count != 0) | |
705 | haslinno = true; | |
706 | ||
707 | section.s_flags = sec_to_styp_flags (current->name, current->flags); | |
708 | ||
709 | if (!strcmp (current->name, _TEXT)) { | |
710 | text_sec = current; | |
711 | } else if (!strcmp (current->name, _DATA)) { | |
712 | data_sec = current; | |
713 | } else if (!strcmp (current->name, _BSS)) { | |
714 | bss_sec = current; | |
715 | } | |
716 | ||
717 | if (bfd_coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 | |
718 | || bfd_write ((PTR) (&buff), 1, bfd_coff_scnhsz (abfd), abfd) | |
719 | != bfd_coff_scnhsz (abfd)) | |
720 | return false; | |
721 | } | |
722 | ||
723 | internal_f.f_timdat = 0; | |
724 | ||
725 | internal_f.f_flags = 0; | |
726 | ||
727 | if (!hasrelocs) | |
728 | internal_f.f_flags |= F_RELFLG; | |
729 | if (!haslinno) | |
730 | internal_f.f_flags |= F_LNNO; | |
731 | if (abfd->flags & EXEC_P) | |
732 | internal_f.f_flags |= F_EXEC; | |
733 | ||
734 | /* FIXME: this is wrong for PPC_PE! */ | |
735 | if (bfd_little_endian (abfd)) | |
736 | internal_f.f_flags |= F_AR32WR; | |
737 | else | |
738 | internal_f.f_flags |= F_AR32W; | |
739 | ||
740 | if ((abfd->flags & DYNAMIC) != 0) | |
741 | internal_f.f_flags |= F_SHROBJ; | |
742 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) | |
743 | internal_f.f_flags |= F_DYNLOAD; | |
744 | ||
745 | memset (&internal_a, 0, sizeof internal_a); | |
746 | ||
747 | ||
748 | /* | |
749 | * This can only be called from the xcoff64 backend so the magic # must | |
750 | * be for xcoff64 | |
751 | */ | |
752 | internal_f.f_magic = 0757; | |
753 | ||
754 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : | |
755 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : | |
756 | RS6K_AOUTHDR_OMAGIC; | |
757 | ||
758 | /* FIXME: Does anybody ever set this to another value? */ | |
759 | internal_a.vstamp = 0; | |
760 | ||
761 | /* Now should write relocs, strings, syms */ | |
762 | obj_sym_filepos (abfd) = sym_base; | |
763 | ||
764 | internal_f.f_symptr = 0; | |
765 | internal_f.f_nsyms = 0; | |
766 | ||
767 | /* | |
768 | * If bfd_get_symcount (abfd) != 0, then we are not using the COFF | |
769 | * backend linker, and obj_raw_syment_count is not valid until after | |
770 | * coff_write_symbols is called. | |
771 | */ | |
772 | if (bfd_get_symcount (abfd) != 0) { | |
773 | int firstundef; | |
774 | ||
775 | if (!coff_renumber_symbols (abfd, &firstundef)) | |
776 | return false; | |
777 | coff_mangle_symbols (abfd); | |
778 | if (! coff_write_symbols (abfd)) | |
779 | return false; | |
780 | if (! coff_write_linenumbers (abfd)) | |
781 | return false; | |
782 | if (! coff_write_relocs (abfd, firstundef)) | |
783 | return false; | |
784 | ||
785 | internal_f.f_symptr = sym_base; | |
786 | internal_f.f_nsyms = bfd_get_symcount (abfd); | |
787 | } else if (obj_raw_syment_count (abfd) != 0) { | |
788 | internal_f.f_symptr = sym_base; | |
789 | ||
790 | /* | |
791 | * AIX appears to require that F_RELFLG not be set if there are | |
792 | * local symbols but no relocations. | |
793 | */ | |
794 | internal_f.f_flags &=~ F_RELFLG; | |
795 | } else { | |
796 | internal_f.f_flags |= F_LSYMS; | |
797 | } | |
798 | ||
799 | if (text_sec) { | |
800 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); | |
801 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; | |
802 | } | |
803 | ||
804 | if (data_sec) { | |
805 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); | |
806 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; | |
807 | } | |
808 | ||
809 | if (bss_sec) { | |
810 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); | |
811 | if (internal_a.bsize && bss_sec->vma < internal_a.data_start) | |
812 | internal_a.data_start = bss_sec->vma; | |
813 | } | |
814 | ||
815 | internal_a.entry = bfd_get_start_address (abfd); | |
816 | internal_f.f_nsyms = obj_raw_syment_count (abfd); | |
817 | ||
818 | if (xcoff_data (abfd)->full_aouthdr) { | |
819 | ||
820 | bfd_vma toc; | |
821 | asection *loader_sec; | |
822 | ||
823 | internal_a.vstamp = 1; | |
824 | ||
825 | internal_a.o_snentry = xcoff_data (abfd)->snentry; | |
826 | if (internal_a.o_snentry == 0) | |
827 | internal_a.entry = (bfd_vma) -1; | |
828 | ||
829 | if (text_sec != NULL) { | |
830 | internal_a.o_sntext = text_sec->target_index; | |
831 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); | |
832 | } else { | |
833 | internal_a.o_sntext = 0; | |
834 | internal_a.o_algntext = 0; | |
835 | } | |
836 | ||
837 | if (data_sec != NULL) { | |
838 | internal_a.o_sndata = data_sec->target_index; | |
839 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); | |
840 | } else { | |
841 | internal_a.o_sndata = 0; | |
842 | internal_a.o_algndata = 0; | |
843 | } | |
844 | ||
845 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); | |
846 | if (loader_sec != NULL) | |
847 | internal_a.o_snloader = loader_sec->target_index; | |
848 | else | |
849 | internal_a.o_snloader = 0; | |
850 | if (bss_sec != NULL) | |
851 | internal_a.o_snbss = bss_sec->target_index; | |
852 | else | |
853 | internal_a.o_snbss = 0; | |
854 | ||
855 | toc = xcoff_data (abfd)->toc; | |
856 | internal_a.o_toc = toc; | |
857 | internal_a.o_sntoc = xcoff_data (abfd)->sntoc; | |
858 | ||
859 | internal_a.o_modtype = xcoff_data (abfd)->modtype; | |
860 | if (xcoff_data (abfd)->cputype != -1) | |
861 | internal_a.o_cputype = xcoff_data (abfd)->cputype; | |
862 | else | |
863 | { | |
864 | switch (bfd_get_arch (abfd)) | |
865 | { | |
866 | case bfd_arch_rs6000: | |
867 | internal_a.o_cputype = 4; | |
868 | break; | |
869 | case bfd_arch_powerpc: | |
870 | if (bfd_get_mach (abfd) == 0) | |
871 | internal_a.o_cputype = 3; | |
872 | else | |
873 | internal_a.o_cputype = 1; | |
874 | break; | |
875 | default: | |
876 | abort (); | |
877 | } | |
878 | } | |
879 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; | |
880 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; | |
881 | } | |
882 | ||
883 | if (bfd_seek (abfd, (file_ptr) 0, 0 ) != 0) | |
884 | return false; | |
885 | ||
886 | { | |
887 | char * buff; | |
888 | bfd_size_type amount; | |
889 | ||
890 | buff = bfd_malloc (bfd_coff_filhsz (abfd)); | |
891 | if (buff == ((void *)0) ) | |
892 | return false; | |
893 | ||
894 | bfd_coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) buff); | |
895 | amount = bfd_write ((PTR) buff, 1, bfd_coff_filhsz (abfd), abfd); | |
896 | ||
897 | free (buff); | |
898 | ||
899 | if (amount != bfd_coff_filhsz (abfd)) | |
900 | return false; | |
901 | } | |
902 | ||
903 | if (abfd->flags & EXEC_P) { | |
904 | ||
905 | char * buff; | |
906 | bfd_size_type amount; | |
907 | ||
908 | buff = bfd_malloc (bfd_coff_aoutsz (abfd)); | |
909 | if (buff == NULL) | |
910 | return false; | |
911 | ||
912 | bfd_coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) buff); | |
913 | amount = bfd_write ((PTR) buff, 1, bfd_coff_aoutsz (abfd), abfd); | |
914 | ||
915 | free (buff); | |
916 | ||
917 | if (amount != bfd_coff_aoutsz (abfd)) | |
918 | return false; | |
919 | } | |
920 | ||
921 | ||
922 | return true; | |
923 | } | |
924 | ||
925 | /* This is the relocation function for the RS/6000/POWER/PowerPC. | |
926 | This is currently the only processor which uses XCOFF; I hope that | |
927 | will never change. */ | |
928 | ||
929 | boolean | |
930 | xcoff64_ppc_relocate_section (output_bfd, info, input_bfd, | |
931 | input_section, contents, relocs, syms, | |
932 | sections) | |
933 | bfd *output_bfd; | |
934 | struct bfd_link_info *info; | |
935 | bfd *input_bfd; | |
936 | asection *input_section; | |
937 | bfd_byte *contents; | |
938 | struct internal_reloc *relocs; | |
939 | struct internal_syment *syms; | |
940 | asection **sections; | |
941 | { | |
942 | struct internal_reloc *rel; | |
943 | struct internal_reloc *relend; | |
944 | ||
945 | rel = relocs; | |
946 | relend = rel + input_section->reloc_count; | |
947 | for (; rel < relend; rel++) | |
948 | { | |
949 | long symndx; | |
950 | struct xcoff_link_hash_entry *h; | |
951 | struct internal_syment *sym; | |
952 | bfd_vma addend; | |
953 | bfd_vma val; | |
954 | struct reloc_howto_struct howto; | |
955 | bfd_reloc_status_type rstat; | |
956 | ||
957 | /* Relocation type R_REF is a special relocation type which is | |
958 | merely used to prevent garbage collection from occurring for | |
959 | the csect including the symbol which it references. */ | |
960 | if (rel->r_type == R_REF) | |
961 | continue; | |
962 | ||
963 | symndx = rel->r_symndx; | |
964 | ||
965 | if (symndx == -1) { | |
966 | h = NULL; | |
967 | sym = NULL; | |
968 | addend = 0; | |
969 | } else { | |
970 | h = obj_xcoff_sym_hashes (input_bfd)[symndx]; | |
971 | sym = syms + symndx; | |
972 | addend = - sym->n_value; | |
973 | } | |
974 | ||
975 | /* We build the howto information on the fly. */ | |
976 | ||
977 | howto.type = rel->r_type; | |
978 | howto.rightshift = 0; | |
979 | howto.size = 4; | |
980 | howto.bitsize = (rel->r_size & 0x3f) + 1; | |
981 | howto.pc_relative = false; | |
982 | howto.bitpos = 0; | |
983 | if ((rel->r_size & 0x80) != 0) | |
984 | howto.complain_on_overflow = complain_overflow_signed; | |
985 | else | |
986 | howto.complain_on_overflow = complain_overflow_bitfield; | |
987 | howto.special_function = NULL; | |
988 | howto.name = "internal"; | |
989 | howto.partial_inplace = true; | |
990 | ||
991 | if (howto.bitsize == 64) { | |
992 | howto.src_mask = howto.dst_mask = MINUS_ONE; | |
993 | } else if (howto.bitsize == 32) { | |
994 | howto.src_mask = howto.dst_mask = 0xffffffff; | |
995 | } else { | |
996 | howto.src_mask = howto.dst_mask = (1 << howto.bitsize) - 1; | |
997 | if (howto.bitsize == 16) | |
998 | howto.size = 1; | |
999 | } | |
1000 | howto.pcrel_offset = false; | |
1001 | ||
1002 | val = 0; | |
1003 | ||
1004 | if (h == NULL) { | |
1005 | asection *sec; | |
1006 | ||
1007 | if (symndx == -1) { | |
1008 | sec = bfd_abs_section_ptr; | |
1009 | val = 0; | |
1010 | } else { | |
1011 | sec = sections[symndx]; | |
1012 | /* Hack to make sure we use the right TOC anchor value | |
1013 | if this reloc is against the TOC anchor. */ | |
1014 | if (sec->name[3] == '0' | |
1015 | && strcmp (sec->name, ".tc0") == 0) | |
1016 | val = xcoff_data (output_bfd)->toc; | |
1017 | else | |
1018 | val = (sec->output_section->vma | |
1019 | + sec->output_offset | |
1020 | + sym->n_value | |
1021 | - sec->vma); | |
1022 | } | |
1023 | ||
1024 | } else { | |
1025 | ||
1026 | if (h->root.type == bfd_link_hash_defined | |
1027 | || h->root.type == bfd_link_hash_defweak) { | |
1028 | asection *sec; | |
1029 | ||
1030 | sec = h->root.u.def.section; | |
1031 | val = (h->root.u.def.value | |
1032 | + sec->output_section->vma | |
1033 | + sec->output_offset); | |
1034 | ||
1035 | } else if (h->root.type == bfd_link_hash_common) { | |
1036 | asection *sec; | |
1037 | ||
1038 | sec = h->root.u.c.p->section; | |
1039 | val = (sec->output_section->vma | |
1040 | + sec->output_offset); | |
1041 | } else if ((h->flags & XCOFF_DEF_DYNAMIC) != 0 | |
1042 | || (h->flags & XCOFF_IMPORT) != 0) { | |
1043 | /* Every symbol in a shared object is defined somewhere. */ | |
1044 | val = 0; | |
1045 | } else if (! info->relocateable) { | |
1046 | if (! ((*info->callbacks->undefined_symbol) | |
1047 | (info, h->root.root.string, input_bfd, input_section, | |
1048 | rel->r_vaddr - input_section->vma, true))) | |
1049 | return false; | |
1050 | ||
1051 | /* Don't try to process the reloc. It can't help, and | |
1052 | it may generate another error. */ | |
1053 | continue; | |
1054 | } | |
1055 | } | |
1056 | ||
1057 | /* I took the relocation type definitions from two documents: | |
1058 | the PowerPC AIX Version 4 Application Binary Interface, First | |
1059 | Edition (April 1992), and the PowerOpen ABI, Big-Endian | |
1060 | 32-Bit Hardware Implementation (June 30, 1994). Differences | |
1061 | between the documents are noted below. */ | |
1062 | ||
1063 | switch (rel->r_type) { | |
1064 | case R_RTB: | |
1065 | case R_RRTBI: | |
1066 | case R_RRTBA: | |
1067 | /* These relocs are defined by the PowerPC ABI to be | |
1068 | relative branches which use half of the difference | |
1069 | between the symbol and the program counter. I can't | |
1070 | quite figure out when this is useful. These relocs are | |
1071 | not defined by the PowerOpen ABI. */ | |
1072 | default: | |
1073 | (*_bfd_error_handler) | |
1074 | (_("%s: unsupported relocation type 0x%02x"), | |
1075 | bfd_get_filename (input_bfd), (unsigned int) rel->r_type); | |
1076 | bfd_set_error (bfd_error_bad_value); | |
1077 | return false; | |
1078 | case R_POS: | |
1079 | /* Simple positive relocation. */ | |
1080 | break; | |
1081 | case R_NEG: | |
1082 | /* Simple negative relocation. */ | |
1083 | val = - val; | |
1084 | break; | |
1085 | case R_REL: | |
1086 | /* Simple PC relative relocation. */ | |
1087 | howto.pc_relative = true; | |
1088 | break; | |
1089 | case R_TOC: | |
1090 | /* TOC relative relocation. The value in the instruction in | |
1091 | the input file is the offset from the input file TOC to | |
1092 | the desired location. We want the offset from the final | |
1093 | TOC to the desired location. We have: | |
1094 | isym = iTOC + in | |
1095 | iinsn = in + o | |
1096 | osym = oTOC + on | |
1097 | oinsn = on + o | |
1098 | so we must change insn by on - in. | |
1099 | */ | |
1100 | case R_GL: | |
1101 | /* Global linkage relocation. The value of this relocation | |
1102 | is the address of the entry in the TOC section. */ | |
1103 | case R_TCL: | |
1104 | /* Local object TOC address. I can't figure out the | |
1105 | difference between this and case R_GL. */ | |
1106 | case R_TRL: | |
1107 | /* TOC relative relocation. A TOC relative load instruction | |
1108 | which may be changed to a load address instruction. | |
1109 | FIXME: We don't currently implement this optimization. */ | |
1110 | case R_TRLA: | |
1111 | /* TOC relative relocation. This is a TOC relative load | |
1112 | address instruction which may be changed to a load | |
1113 | instruction. FIXME: I don't know if this is the correct | |
1114 | implementation. */ | |
1115 | if (h != NULL && h->smclas != XMC_TD) | |
1116 | { | |
1117 | if (h->toc_section == NULL) | |
1118 | { | |
1119 | (*_bfd_error_handler) | |
1120 | (_("%s: TOC reloc at 0x%x to symbol `%s' with no TOC entry"), | |
1121 | bfd_get_filename (input_bfd), rel->r_vaddr, | |
1122 | h->root.root.string); | |
1123 | bfd_set_error (bfd_error_bad_value); | |
1124 | return false; | |
1125 | } | |
1126 | ||
1127 | BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0); | |
1128 | val = (h->toc_section->output_section->vma | |
1129 | + h->toc_section->output_offset); | |
1130 | ||
1131 | } | |
1132 | ||
1133 | ||
1134 | val = ((val - xcoff_data (output_bfd)->toc) | |
1135 | - (sym->n_value - xcoff_data (input_bfd)->toc)); | |
1136 | ||
1137 | addend = 0; | |
1138 | break; | |
1139 | case R_BA: | |
1140 | /* Absolute branch. We don't want to mess with the lower | |
1141 | two bits of the instruction. */ | |
1142 | case R_CAI: | |
1143 | /* The PowerPC ABI defines this as an absolute call which | |
1144 | may be modified to become a relative call. The PowerOpen | |
1145 | ABI does not define this relocation type. */ | |
1146 | case R_RBA: | |
1147 | /* Absolute branch which may be modified to become a | |
1148 | relative branch. */ | |
1149 | case R_RBAC: | |
1150 | /* The PowerPC ABI defines this as an absolute branch to a | |
1151 | fixed address which may be modified to an absolute branch | |
1152 | to a symbol. The PowerOpen ABI does not define this | |
1153 | relocation type. */ | |
1154 | case R_RBRC: | |
1155 | /* The PowerPC ABI defines this as an absolute branch to a | |
1156 | fixed address which may be modified to a relative branch. | |
1157 | The PowerOpen ABI does not define this relocation type. */ | |
1158 | howto.src_mask &= ~3; | |
1159 | howto.dst_mask = howto.src_mask; | |
1160 | break; | |
1161 | case R_BR: | |
1162 | /* Relative branch. We don't want to mess with the lower | |
1163 | two bits of the instruction. */ | |
1164 | case R_CREL: | |
1165 | /* The PowerPC ABI defines this as a relative call which may | |
1166 | be modified to become an absolute call. The PowerOpen | |
1167 | ABI does not define this relocation type. */ | |
1168 | case R_RBR: | |
1169 | /* A relative branch which may be modified to become an | |
1170 | absolute branch. FIXME: We don't implement this, | |
1171 | although we should for symbols of storage mapping class | |
1172 | XMC_XO. */ | |
1173 | howto.pc_relative = true; | |
1174 | howto.src_mask &= ~3; | |
1175 | howto.dst_mask = howto.src_mask; | |
1176 | howto.size = 2; | |
1177 | howto.complain_on_overflow = complain_overflow_bitfield; | |
1178 | break; | |
1179 | case R_RL: | |
1180 | /* The PowerPC AIX ABI describes this as a load which may be | |
1181 | changed to a load address. The PowerOpen ABI says this | |
1182 | is the same as case R_POS. */ | |
1183 | break; | |
1184 | case R_RLA: | |
1185 | /* The PowerPC AIX ABI describes this as a load address | |
1186 | which may be changed to a load. The PowerOpen ABI says | |
1187 | this is the same as R_POS. */ | |
1188 | break; | |
1189 | } | |
1190 | ||
1191 | /* If we see an R_BR or R_RBR reloc which is jumping to global | |
1192 | linkage code, and it is followed by an appropriate cror nop | |
1193 | instruction, we replace the cror with ld r2,40(r1). This | |
1194 | restores the TOC after the glink code. Contrariwise, if the | |
1195 | call is followed by a ld r2,40(r1), but the call is not | |
1196 | going to global linkage code, we can replace the load with a | |
1197 | cror. */ | |
1198 | if ((rel->r_type == R_BR || rel->r_type == R_RBR) && | |
1199 | h != NULL && | |
1200 | h->root.type == bfd_link_hash_defined && | |
1201 | (rel->r_vaddr - input_section->vma + 8 | |
1202 | <= input_section->_cooked_size)) { | |
1203 | ||
1204 | bfd_byte *pnext; | |
1205 | unsigned long next; | |
1206 | ||
1207 | pnext = contents + (rel->r_vaddr - input_section->vma) + 4; | |
1208 | next = bfd_get_32 (input_bfd, pnext); | |
1209 | ||
1210 | ||
1211 | /* The _ptrgl function is magic. It is used by the AIX | |
1212 | * compiler to call a function through a pointer. | |
1213 | * | |
1214 | * special case XMC_GL, global linkage | |
1215 | */ | |
1216 | if (h->smclas == XMC_GL | |
1217 | || strcmp (h->root.root.string, "._ptrgl") == 0) | |
1218 | { | |
1219 | if (next == 0x4def7b82 /* cror 15,15,15 */ | |
1220 | || next == 0x4ffffb82 /* cror 31,31,31 */ | |
1221 | || next == 0x60000000) /* ori r0,r0,0 */ | |
1222 | bfd_put_32 (input_bfd, 0xe8410028, pnext); /* ld r2,40(r1) */ | |
1223 | } | |
1224 | else | |
1225 | { | |
1226 | if (next == 0xe8410028) /* ld r2,40(r1) */ | |
1227 | bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */ | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | /* A PC relative reloc includes the section address. */ | |
1232 | if (howto.pc_relative) | |
1233 | addend += input_section->vma; | |
1234 | ||
1235 | rstat = _bfd_final_link_relocate (&howto, input_bfd, input_section, | |
1236 | contents, | |
1237 | rel->r_vaddr - input_section->vma, | |
1238 | val, addend); | |
1239 | ||
1240 | switch (rstat) | |
1241 | { | |
1242 | default: | |
1243 | abort (); | |
1244 | case bfd_reloc_ok: | |
1245 | break; | |
1246 | case bfd_reloc_overflow: | |
1247 | { | |
1248 | const char *name; | |
1249 | char buf[SYMNMLEN + 1]; | |
1250 | char howto_name[10]; | |
1251 | ||
1252 | if (symndx == -1) | |
1253 | name = "*ABS*"; | |
1254 | else if (h != NULL) | |
1255 | name = h->root.root.string; | |
1256 | else | |
1257 | { | |
1258 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); | |
1259 | if (name == NULL) | |
1260 | return false; | |
1261 | } | |
1262 | sprintf (howto_name, "0x%02x", rel->r_type); | |
1263 | ||
1264 | if (! ((*info->callbacks->reloc_overflow) | |
1265 | (info, name, howto_name, (bfd_vma) 0, input_bfd, | |
1266 | input_section, rel->r_vaddr - input_section->vma))) | |
1267 | return false; | |
1268 | } | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | return true; | |
1273 | } | |
1274 | ||
1275 | ||
1276 | \f | |
1277 | /* The XCOFF reloc table. Actually, XCOFF relocations specify the | |
1278 | bitsize and whether they are signed or not, along with a | |
1279 | conventional type. This table is for the types, which are used for | |
1280 | different algorithms for putting in the reloc. Many of these | |
1281 | relocs need special_function entries, which I have not written. */ | |
1282 | ||
1283 | ||
1284 | reloc_howto_type xcoff64_howto_table[] = | |
1285 | { | |
1286 | /* Standard 64 bit relocation. */ | |
1287 | HOWTO (0, /* type */ | |
1288 | 0, /* rightshift */ | |
1289 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1290 | 64, /* bitsize */ | |
1291 | false, /* pc_relative */ | |
1292 | 0, /* bitpos */ | |
1293 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1294 | 0, /* special_function */ | |
1295 | "R_POS", /* name */ | |
1296 | true, /* partial_inplace */ | |
1297 | MINUS_ONE, /* src_mask */ | |
1298 | MINUS_ONE, /* dst_mask */ | |
1299 | false), /* pcrel_offset */ | |
1300 | ||
1301 | /* 64 bit relocation, but store negative value. */ | |
1302 | HOWTO (1, /* type */ | |
1303 | 0, /* rightshift */ | |
1304 | -4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1305 | 64, /* bitsize */ | |
1306 | false, /* pc_relative */ | |
1307 | 0, /* bitpos */ | |
1308 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1309 | 0, /* special_function */ | |
1310 | "R_NEG", /* name */ | |
1311 | true, /* partial_inplace */ | |
1312 | MINUS_ONE, /* src_mask */ | |
1313 | MINUS_ONE, /* dst_mask */ | |
1314 | false), /* pcrel_offset */ | |
1315 | ||
1316 | /* 32 bit PC relative relocation. */ | |
1317 | HOWTO (2, /* type */ | |
1318 | 0, /* rightshift */ | |
1319 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1320 | 32, /* bitsize */ | |
1321 | true, /* pc_relative */ | |
1322 | 0, /* bitpos */ | |
1323 | complain_overflow_signed, /* complain_on_overflow */ | |
1324 | 0, /* special_function */ | |
1325 | "R_REL", /* name */ | |
1326 | true, /* partial_inplace */ | |
1327 | 0xffffffff, /* src_mask */ | |
1328 | 0xffffffff, /* dst_mask */ | |
1329 | false), /* pcrel_offset */ | |
1330 | ||
1331 | /* 16 bit TOC relative relocation. */ | |
1332 | HOWTO (3, /* type */ | |
1333 | 0, /* rightshift */ | |
1334 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1335 | 16, /* bitsize */ | |
1336 | false, /* pc_relative */ | |
1337 | 0, /* bitpos */ | |
1338 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1339 | 0, /* special_function */ | |
1340 | "R_TOC", /* name */ | |
1341 | true, /* partial_inplace */ | |
1342 | 0xffff, /* src_mask */ | |
1343 | 0xffff, /* dst_mask */ | |
1344 | false), /* pcrel_offset */ | |
1345 | ||
1346 | /* I don't really know what this is. */ | |
1347 | HOWTO (4, /* type */ | |
1348 | 1, /* rightshift */ | |
1349 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1350 | 32, /* bitsize */ | |
1351 | false, /* pc_relative */ | |
1352 | 0, /* bitpos */ | |
1353 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1354 | 0, /* special_function */ | |
1355 | "R_RTB", /* name */ | |
1356 | true, /* partial_inplace */ | |
1357 | 0xffffffff, /* src_mask */ | |
1358 | 0xffffffff, /* dst_mask */ | |
1359 | false), /* pcrel_offset */ | |
1360 | ||
1361 | /* External TOC relative symbol. */ | |
1362 | HOWTO (5, /* type */ | |
1363 | 0, /* rightshift */ | |
1364 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1365 | 16, /* bitsize */ | |
1366 | false, /* pc_relative */ | |
1367 | 0, /* bitpos */ | |
1368 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1369 | 0, /* special_function */ | |
1370 | "R_GL", /* name */ | |
1371 | true, /* partial_inplace */ | |
1372 | 0xffff, /* src_mask */ | |
1373 | 0xffff, /* dst_mask */ | |
1374 | false), /* pcrel_offset */ | |
1375 | ||
1376 | /* Local TOC relative symbol. */ | |
1377 | HOWTO (6, /* type */ | |
1378 | 0, /* rightshift */ | |
1379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1380 | 16, /* bitsize */ | |
1381 | false, /* pc_relative */ | |
1382 | 0, /* bitpos */ | |
1383 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1384 | 0, /* special_function */ | |
1385 | "R_TCL", /* name */ | |
1386 | true, /* partial_inplace */ | |
1387 | 0xffff, /* src_mask */ | |
1388 | 0xffff, /* dst_mask */ | |
1389 | false), /* pcrel_offset */ | |
1390 | ||
1391 | EMPTY_HOWTO (7), | |
1392 | ||
1393 | /* Non modifiable absolute branch. */ | |
1394 | HOWTO (8, /* type */ | |
1395 | 0, /* rightshift */ | |
1396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1397 | 26, /* bitsize */ | |
1398 | false, /* pc_relative */ | |
1399 | 0, /* bitpos */ | |
1400 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1401 | 0, /* special_function */ | |
1402 | "R_BA", /* name */ | |
1403 | true, /* partial_inplace */ | |
1404 | 0x3fffffc, /* src_mask */ | |
1405 | 0x3fffffc, /* dst_mask */ | |
1406 | false), /* pcrel_offset */ | |
1407 | ||
1408 | EMPTY_HOWTO (9), | |
1409 | ||
1410 | /* Non modifiable relative branch. */ | |
1411 | HOWTO (0xa, /* type */ | |
1412 | 0, /* rightshift */ | |
1413 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1414 | 26, /* bitsize */ | |
1415 | true, /* pc_relative */ | |
1416 | 0, /* bitpos */ | |
1417 | complain_overflow_signed, /* complain_on_overflow */ | |
1418 | 0, /* special_function */ | |
1419 | "R_BR", /* name */ | |
1420 | true, /* partial_inplace */ | |
1421 | 0x3fffffc, /* src_mask */ | |
1422 | 0x3fffffc, /* dst_mask */ | |
1423 | false), /* pcrel_offset */ | |
1424 | ||
1425 | EMPTY_HOWTO (0xb), | |
1426 | ||
1427 | /* Indirect load. */ | |
1428 | HOWTO (0xc, /* type */ | |
1429 | 0, /* rightshift */ | |
1430 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1431 | 16, /* bitsize */ | |
1432 | false, /* pc_relative */ | |
1433 | 0, /* bitpos */ | |
1434 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1435 | 0, /* special_function */ | |
1436 | "R_RL", /* name */ | |
1437 | true, /* partial_inplace */ | |
1438 | 0xffff, /* src_mask */ | |
1439 | 0xffff, /* dst_mask */ | |
1440 | false), /* pcrel_offset */ | |
1441 | ||
1442 | /* Load address. */ | |
1443 | HOWTO (0xd, /* type */ | |
1444 | 0, /* rightshift */ | |
1445 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1446 | 16, /* bitsize */ | |
1447 | false, /* pc_relative */ | |
1448 | 0, /* bitpos */ | |
1449 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1450 | 0, /* special_function */ | |
1451 | "R_RLA", /* name */ | |
1452 | true, /* partial_inplace */ | |
1453 | 0xffff, /* src_mask */ | |
1454 | 0xffff, /* dst_mask */ | |
1455 | false), /* pcrel_offset */ | |
1456 | ||
1457 | EMPTY_HOWTO (0xe), | |
1458 | ||
1459 | /* Non-relocating reference. */ | |
1460 | HOWTO (0xf, /* type */ | |
1461 | 0, /* rightshift */ | |
1462 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1463 | 32, /* bitsize */ | |
1464 | false, /* pc_relative */ | |
1465 | 0, /* bitpos */ | |
1466 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1467 | 0, /* special_function */ | |
1468 | "R_REF", /* name */ | |
1469 | false, /* partial_inplace */ | |
1470 | 0, /* src_mask */ | |
1471 | 0, /* dst_mask */ | |
1472 | false), /* pcrel_offset */ | |
1473 | ||
1474 | EMPTY_HOWTO (0x10), | |
1475 | EMPTY_HOWTO (0x11), | |
1476 | ||
1477 | /* TOC relative indirect load. */ | |
1478 | HOWTO (0x12, /* type */ | |
1479 | 0, /* rightshift */ | |
1480 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1481 | 16, /* bitsize */ | |
1482 | false, /* pc_relative */ | |
1483 | 0, /* bitpos */ | |
1484 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1485 | 0, /* special_function */ | |
1486 | "R_TRL", /* name */ | |
1487 | true, /* partial_inplace */ | |
1488 | 0xffff, /* src_mask */ | |
1489 | 0xffff, /* dst_mask */ | |
1490 | false), /* pcrel_offset */ | |
1491 | ||
1492 | /* TOC relative load address. */ | |
1493 | HOWTO (0x13, /* type */ | |
1494 | 0, /* rightshift */ | |
1495 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1496 | 16, /* bitsize */ | |
1497 | false, /* pc_relative */ | |
1498 | 0, /* bitpos */ | |
1499 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1500 | 0, /* special_function */ | |
1501 | "R_TRLA", /* name */ | |
1502 | true, /* partial_inplace */ | |
1503 | 0xffff, /* src_mask */ | |
1504 | 0xffff, /* dst_mask */ | |
1505 | false), /* pcrel_offset */ | |
1506 | ||
1507 | /* Modifiable relative branch. */ | |
1508 | HOWTO (0x14, /* type */ | |
1509 | 1, /* rightshift */ | |
1510 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1511 | 32, /* bitsize */ | |
1512 | false, /* pc_relative */ | |
1513 | 0, /* bitpos */ | |
1514 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1515 | 0, /* special_function */ | |
1516 | "R_RRTBI", /* name */ | |
1517 | true, /* partial_inplace */ | |
1518 | 0xffffffff, /* src_mask */ | |
1519 | 0xffffffff, /* dst_mask */ | |
1520 | false), /* pcrel_offset */ | |
1521 | ||
1522 | /* Modifiable absolute branch. */ | |
1523 | HOWTO (0x15, /* type */ | |
1524 | 1, /* rightshift */ | |
1525 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1526 | 32, /* bitsize */ | |
1527 | false, /* pc_relative */ | |
1528 | 0, /* bitpos */ | |
1529 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1530 | 0, /* special_function */ | |
1531 | "R_RRTBA", /* name */ | |
1532 | true, /* partial_inplace */ | |
1533 | 0xffffffff, /* src_mask */ | |
1534 | 0xffffffff, /* dst_mask */ | |
1535 | false), /* pcrel_offset */ | |
1536 | ||
1537 | /* Modifiable call absolute indirect. */ | |
1538 | HOWTO (0x16, /* type */ | |
1539 | 0, /* rightshift */ | |
1540 | 2, /* 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_CAI", /* name */ | |
1547 | true, /* partial_inplace */ | |
1548 | 0xffff, /* src_mask */ | |
1549 | 0xffff, /* dst_mask */ | |
1550 | false), /* pcrel_offset */ | |
1551 | ||
1552 | /* Modifiable call relative. */ | |
1553 | HOWTO (0x17, /* type */ | |
1554 | 0, /* rightshift */ | |
1555 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1556 | 16, /* bitsize */ | |
1557 | false, /* pc_relative */ | |
1558 | 0, /* bitpos */ | |
1559 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1560 | 0, /* special_function */ | |
1561 | "R_CREL", /* name */ | |
1562 | true, /* partial_inplace */ | |
1563 | 0xffff, /* src_mask */ | |
1564 | 0xffff, /* dst_mask */ | |
1565 | false), /* pcrel_offset */ | |
1566 | ||
1567 | /* Modifiable branch absolute. */ | |
1568 | HOWTO (0x18, /* type */ | |
1569 | 0, /* rightshift */ | |
1570 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1571 | 26, /* bitsize */ | |
1572 | false, /* pc_relative */ | |
1573 | 0, /* bitpos */ | |
1574 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1575 | 0, /* special_function */ | |
1576 | "R_RBA", /* name */ | |
1577 | true, /* partial_inplace */ | |
1578 | 0xffff, /* src_mask */ | |
1579 | 0xffff, /* dst_mask */ | |
1580 | false), /* pcrel_offset */ | |
1581 | ||
1582 | /* Modifiable branch absolute. */ | |
1583 | HOWTO (0x19, /* type */ | |
1584 | 0, /* rightshift */ | |
1585 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1586 | 32, /* bitsize */ | |
1587 | false, /* pc_relative */ | |
1588 | 0, /* bitpos */ | |
1589 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1590 | 0, /* special_function */ | |
1591 | "R_RBAC", /* name */ | |
1592 | true, /* partial_inplace */ | |
1593 | 0xffff, /* src_mask */ | |
1594 | 0xffff, /* dst_mask */ | |
1595 | false), /* pcrel_offset */ | |
1596 | ||
1597 | /* Modifiable branch relative. */ | |
1598 | HOWTO (0x1a, /* type */ | |
1599 | 0, /* rightshift */ | |
1600 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1601 | 26, /* bitsize */ | |
1602 | false, /* pc_relative */ | |
1603 | 0, /* bitpos */ | |
1604 | complain_overflow_signed, /* complain_on_overflow */ | |
1605 | 0, /* special_function */ | |
1606 | "R_RBR", /* name */ | |
1607 | true, /* partial_inplace */ | |
1608 | 0xffff, /* src_mask */ | |
1609 | 0xffff, /* dst_mask */ | |
1610 | false), /* pcrel_offset */ | |
1611 | ||
1612 | /* Modifiable branch absolute. */ | |
1613 | HOWTO (0x1b, /* type */ | |
1614 | 0, /* rightshift */ | |
1615 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1616 | 16, /* bitsize */ | |
1617 | false, /* pc_relative */ | |
1618 | 0, /* bitpos */ | |
1619 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1620 | 0, /* special_function */ | |
1621 | "R_RBRC", /* name */ | |
1622 | true, /* partial_inplace */ | |
1623 | 0xffff, /* src_mask */ | |
1624 | 0xffff, /* dst_mask */ | |
1625 | false), /* pcrel_offset */ | |
1626 | ||
1627 | HOWTO (0, /* type */ | |
1628 | 0, /* rightshift */ | |
1629 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1630 | 64, /* bitsize */ | |
1631 | false, /* pc_relative */ | |
1632 | 0, /* bitpos */ | |
1633 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1634 | 0, /* special_function */ | |
1635 | "R_POS", /* name */ | |
1636 | true, /* partial_inplace */ | |
1637 | MINUS_ONE, /* src_mask */ | |
1638 | MINUS_ONE, /* dst_mask */ | |
1639 | false) /* pcrel_offset */ | |
1640 | ||
1641 | }; | |
1642 | ||
1643 | void | |
1644 | xcoff64_rtype2howto (relent, internal) | |
1645 | arelent *relent; | |
1646 | struct internal_reloc *internal; | |
1647 | { | |
1648 | relent->howto = xcoff64_howto_table + internal->r_type; | |
1649 | ||
1650 | /* Check for relocs we don't know of. */ | |
1651 | if (internal->r_type | |
1652 | >= sizeof (xcoff64_howto_table) / sizeof (xcoff64_howto_table[0])) | |
1653 | abort (); | |
1654 | if (internal->r_type != relent->howto->type) | |
1655 | abort (); | |
1656 | ||
1657 | /* The r_size field of an XCOFF reloc encodes the bitsize of the | |
1658 | relocation, as well as indicating whether it is signed or not. | |
1659 | Doublecheck that the relocation information gathered from the | |
1660 | type matches this information. The bitsize is not significant | |
1661 | for R_REF relocs. */ | |
1662 | if (relent->howto->dst_mask != 0 | |
1663 | && (relent->howto->bitsize | |
1664 | != ((unsigned int) internal->r_size & 0x3f) + 1)) | |
1665 | abort (); | |
1666 | #if 0 | |
1667 | if ((internal->r_size & 0x80) != 0 | |
1668 | ? (relent->howto->complain_on_overflow != complain_overflow_signed) | |
1669 | : (relent->howto->complain_on_overflow != complain_overflow_bitfield)) | |
1670 | abort (); | |
1671 | #endif | |
1672 | } | |
1673 | ||
1674 | reloc_howto_type * | |
1675 | xcoff64_reloc_type_lookup (abfd, code) | |
1676 | bfd *abfd ATTRIBUTE_UNUSED; | |
1677 | bfd_reloc_code_real_type code; | |
1678 | { | |
1679 | switch (code) | |
1680 | { | |
1681 | case BFD_RELOC_PPC_B26: | |
1682 | return &xcoff64_howto_table[0xa]; | |
1683 | case BFD_RELOC_PPC_BA26: | |
1684 | return &xcoff64_howto_table[8]; | |
1685 | case BFD_RELOC_PPC_TOC16: | |
1686 | return &xcoff64_howto_table[3]; | |
1687 | case BFD_RELOC_32: | |
1688 | case BFD_RELOC_CTOR: | |
1689 | return &xcoff64_howto_table[0]; | |
1690 | case BFD_RELOC_64: | |
1691 | return &xcoff64_howto_table[0x1c]; | |
1692 | default: | |
1693 | return NULL; | |
1694 | } | |
1695 | } | |
1696 | ||
1697 | ||
1698 | ||
1699 | /* Read in the armap of an XCOFF archive. */ | |
1700 | ||
1701 | boolean | |
1702 | xcoff64_slurp_armap (abfd) | |
1703 | bfd *abfd; | |
1704 | { | |
1705 | file_ptr off; | |
1706 | size_t namlen; | |
1707 | bfd_size_type sz; | |
1708 | bfd_byte *contents, *cend; | |
1709 | bfd_vma c, i; | |
1710 | carsym *arsym; | |
1711 | bfd_byte *p; | |
1712 | ||
1713 | /* This is for the new format. */ | |
1714 | struct xcoff_ar_hdr_big hdr; | |
1715 | ||
1716 | if (xcoff_ardata (abfd) == NULL) { | |
1717 | bfd_has_map (abfd) = false; | |
1718 | return true; | |
1719 | } | |
1720 | ||
1721 | off = strtol (xcoff_ardata_big (abfd)->symoff64, (char **) NULL, 10); | |
1722 | if (off == 0) { | |
1723 | bfd_has_map (abfd) = false; | |
1724 | return true; | |
1725 | } | |
1726 | ||
1727 | if (bfd_seek (abfd, off, SEEK_SET) != 0) | |
1728 | return false; | |
1729 | ||
1730 | /* The symbol table starts with a normal archive header. */ | |
1731 | if (bfd_read ((PTR) &hdr, SIZEOF_AR_HDR_BIG, 1, abfd) != SIZEOF_AR_HDR_BIG) | |
1732 | return false; | |
1733 | ||
1734 | /* Skip the name (normally empty). */ | |
1735 | namlen = strtol (hdr.namlen, (char **) NULL, 10); | |
1736 | if (bfd_seek (abfd, ((namlen + 1) & ~1) + SXCOFFARFMAG, SEEK_CUR) != 0) | |
1737 | return false; | |
1738 | ||
1739 | /* XXX This actually has to be a call to strtoll (at least on 32-bit | |
1740 | machines) since the field width is 20 and there numbers with more | |
1741 | than 32 bits can be represented. */ | |
1742 | sz = strtol (hdr.size, (char **) NULL, 10); | |
1743 | ||
1744 | /* Read in the entire symbol table. */ | |
1745 | contents = (bfd_byte *) bfd_alloc (abfd, sz); | |
1746 | if (contents == NULL) | |
1747 | return false; | |
1748 | if (bfd_read ((PTR) contents, 1, sz, abfd) != sz) | |
1749 | return false; | |
1750 | ||
1751 | /* The symbol table starts with an eight byte count. */ | |
1752 | c = bfd_h_get_64 (abfd, contents); | |
1753 | ||
1754 | if (c * 8 >= sz) { | |
1755 | bfd_set_error (bfd_error_bad_value); | |
1756 | return false; | |
1757 | } | |
1758 | ||
1759 | bfd_ardata (abfd)->symdefs = ((carsym *) | |
1760 | bfd_alloc (abfd, c * sizeof (carsym))); | |
1761 | if (bfd_ardata (abfd)->symdefs == NULL) | |
1762 | return false; | |
1763 | ||
1764 | /* After the count comes a list of eight byte file offsets. */ | |
1765 | for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8; | |
1766 | i < c; | |
1767 | ++i, ++arsym, p += 8) | |
1768 | arsym->file_offset = bfd_h_get_64 (abfd, p); | |
1769 | ||
1770 | /* After the file offsets come null terminated symbol names. */ | |
1771 | cend = contents + sz; | |
1772 | for (i = 0, arsym = bfd_ardata (abfd)->symdefs; | |
1773 | i < c; | |
1774 | ++i, ++arsym, p += strlen ((char *) p) + 1) | |
1775 | { | |
1776 | if (p >= cend) | |
1777 | { | |
1778 | bfd_set_error (bfd_error_bad_value); | |
1779 | return false; | |
1780 | } | |
1781 | arsym->name = (char *) p; | |
1782 | } | |
1783 | ||
1784 | bfd_ardata (abfd)->symdef_count = c; | |
1785 | bfd_has_map (abfd) = true; | |
1786 | ||
1787 | return true; | |
1788 | } | |
1789 | ||
1790 | ||
1791 | ||
1792 | /* See if this is an NEW XCOFF archive. */ | |
1793 | ||
1794 | const bfd_target * | |
1795 | xcoff64_archive_p (abfd) | |
1796 | bfd *abfd; | |
1797 | { | |
1798 | char magic[SXCOFFARMAG]; | |
1799 | /* This is the new format. */ | |
1800 | struct xcoff_ar_file_hdr_big hdr; | |
1801 | ||
1802 | if (bfd_read ((PTR) magic, SXCOFFARMAG, 1, abfd) != SXCOFFARMAG) { | |
1803 | if (bfd_get_error () != bfd_error_system_call) | |
1804 | bfd_set_error (bfd_error_wrong_format); | |
1805 | return NULL; | |
1806 | } | |
1807 | ||
1808 | if (strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0) { | |
1809 | bfd_set_error (bfd_error_wrong_format); | |
1810 | return NULL; | |
1811 | } | |
1812 | ||
1813 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
1814 | involves a cast, we can't do it as the left operand of | |
1815 | assignment. */ | |
1816 | abfd->tdata.aout_ar_data = | |
1817 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
1818 | ||
1819 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
1820 | return NULL; | |
1821 | ||
1822 | bfd_ardata (abfd)->cache = NULL; | |
1823 | bfd_ardata (abfd)->archive_head = NULL; | |
1824 | bfd_ardata (abfd)->symdefs = NULL; | |
1825 | bfd_ardata (abfd)->extended_names = NULL; | |
1826 | ||
1827 | /* Copy over the magic string. */ | |
1828 | memcpy (hdr.magic, magic, SXCOFFARMAG); | |
1829 | ||
1830 | /* Now read the rest of the file header. */ | |
1831 | if (bfd_read ((PTR) &hdr.memoff, SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG, 1, | |
1832 | abfd) != SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG) { | |
1833 | if (bfd_get_error () != bfd_error_system_call) | |
1834 | bfd_set_error (bfd_error_wrong_format); | |
1835 | return NULL; | |
1836 | } | |
1837 | ||
1838 | /* XXX This actually has to be a call to strtoll (at least on 32-bit | |
1839 | machines) since the field width is 20 and there numbers with more | |
1840 | than 32 bits can be represented. */ | |
1841 | bfd_ardata (abfd)->first_file_filepos = strtol (hdr.firstmemoff, | |
1842 | (char **) NULL, 10); | |
1843 | ||
1844 | bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, SIZEOF_AR_FILE_HDR_BIG); | |
1845 | if (bfd_ardata (abfd)->tdata == NULL) | |
1846 | return NULL; | |
1847 | ||
1848 | memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG); | |
1849 | ||
1850 | if (! xcoff64_slurp_armap (abfd)) { | |
1851 | ||
1852 | bfd_release (abfd, bfd_ardata (abfd)); | |
1853 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
1854 | return NULL; | |
1855 | } | |
1856 | ||
1857 | return abfd->xvec; | |
1858 | } | |
1859 | ||
1860 | ||
1861 | /* Open the next element in an XCOFF archive. */ | |
1862 | ||
1863 | bfd * | |
1864 | xcoff64_openr_next_archived_file (archive, last_file) | |
1865 | bfd *archive; | |
1866 | bfd *last_file; | |
1867 | { | |
1868 | file_ptr filestart; | |
1869 | ||
1870 | if ((xcoff_ardata (archive) == NULL) || | |
1871 | (! xcoff_big_format_p (archive))) { | |
1872 | bfd_set_error (bfd_error_invalid_operation); | |
1873 | return NULL; | |
1874 | } | |
1875 | ||
1876 | if (last_file == NULL) { | |
1877 | filestart = bfd_ardata (archive)->first_file_filepos; | |
1878 | } else { | |
1879 | /* XXX These actually have to be a calls to strtoll (at least | |
1880 | on 32-bit machines) since the fields's width is 20 and | |
1881 | there numbers with more than 32 bits can be represented. */ | |
1882 | filestart = strtol (arch_xhdr_big (last_file)->nextoff, (char **) NULL, | |
1883 | 10); | |
1884 | } | |
1885 | /* XXX These actually have to be calls to strtoll (at least on 32-bit | |
1886 | machines) since the fields's width is 20 and there numbers with more | |
1887 | than 32 bits can be represented. */ | |
1888 | if (filestart == 0 | |
1889 | || filestart == strtol (xcoff_ardata_big (archive)->memoff, | |
1890 | (char **) NULL, 10) | |
1891 | || filestart == strtol (xcoff_ardata_big (archive)->symoff, | |
1892 | (char **) NULL, 10)) { | |
1893 | bfd_set_error (bfd_error_no_more_archived_files); | |
1894 | return NULL; | |
1895 | } | |
1896 | ||
1897 | return _bfd_get_elt_at_filepos (archive, filestart); | |
1898 | } | |
1899 | ||
1900 | /* We can't use the usual coff_sizeof_headers routine, because AIX | |
1901 | always uses an a.out header. */ | |
1902 | ||
1903 | /*ARGSUSED*/ | |
1904 | int | |
1905 | xcoff64_sizeof_headers (abfd, reloc) | |
1906 | bfd *abfd; | |
1907 | boolean reloc ATTRIBUTE_UNUSED; | |
1908 | { | |
1909 | int size; | |
1910 | ||
1911 | size = bfd_coff_filhsz(abfd); | |
1912 | ||
1913 | /* | |
1914 | * Don't think the small aout header can be used since some of the the | |
1915 | * old elements have been reordered past the end of the old coff | |
1916 | * small aout size | |
1917 | */ | |
1918 | ||
1919 | if (xcoff_data (abfd)->full_aouthdr) | |
1920 | size += bfd_coff_aoutsz(abfd); | |
1921 | ||
1922 | size += abfd->section_count * bfd_coff_scnhsz(abfd); | |
1923 | return size; | |
1924 | } | |
1925 | ||
1926 | ||
1927 | ||
1928 | static asection * | |
1929 | xcoff64_create_csect_from_smclas (abfd, aux, symbol_name) | |
1930 | bfd *abfd; | |
1931 | union internal_auxent *aux; | |
1932 | const char *symbol_name; | |
1933 | { | |
1934 | asection *return_value = NULL; | |
1935 | ||
1936 | /* | |
1937 | * Changes from 32 : | |
1938 | * .sv == 8, is only for 32 bit programs | |
1939 | * .ti == 12 and .tb == 13 are now reserved | |
1940 | */ | |
1941 | static const char *names[19] = { | |
1942 | ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo", | |
1943 | NULL, ".bs", ".ds", ".uc", NULL, NULL, NULL, ".tc0", | |
1944 | ".td", ".sv64", ".sv3264" | |
1945 | }; | |
1946 | ||
1947 | if ((19 >= aux->x_csect.x_smclas) && | |
1948 | (NULL != names[aux->x_csect.x_smclas])) { | |
1949 | ||
1950 | return_value = bfd_make_section_anyway | |
1951 | (abfd, names[aux->x_csect.x_smclas]); | |
1952 | ||
1953 | } else { | |
1954 | (*_bfd_error_handler) | |
1955 | (_("%s: symbol `%s' has unrecognized smclas %d"), | |
1956 | bfd_get_filename (abfd), symbol_name, aux->x_csect.x_smclas); | |
1957 | bfd_set_error (bfd_error_bad_value); | |
1958 | } | |
1959 | ||
1960 | return return_value; | |
1961 | } | |
1962 | ||
1963 | boolean | |
1964 | xcoff64_is_lineno_count_overflow (abfd, value) | |
1965 | bfd *abfd ATTRIBUTE_UNUSED; | |
1966 | bfd_vma value ATTRIBUTE_UNUSED; | |
1967 | { | |
1968 | return false; | |
1969 | } | |
1970 | ||
1971 | boolean | |
1972 | xcoff64_is_reloc_count_overflow (abfd, value) | |
1973 | bfd *abfd ATTRIBUTE_UNUSED; | |
1974 | bfd_vma value ATTRIBUTE_UNUSED; | |
1975 | { | |
1976 | return false; | |
1977 | } | |
1978 | ||
1979 | bfd_vma | |
1980 | xcoff64_loader_symbol_offset (abfd, ldhdr) | |
1981 | bfd *abfd ATTRIBUTE_UNUSED; | |
1982 | struct internal_ldhdr *ldhdr; | |
1983 | { | |
1984 | return (ldhdr->l_symoff); | |
1985 | } | |
1986 | ||
1987 | bfd_vma | |
1988 | xcoff64_loader_reloc_offset (abfd, ldhdr) | |
1989 | bfd *abfd ATTRIBUTE_UNUSED; | |
1990 | struct internal_ldhdr *ldhdr; | |
1991 | { | |
1992 | return (ldhdr->l_rldoff); | |
1993 | } | |
1994 | ||
1995 | /* The typical dynamic reloc. */ | |
1996 | ||
1997 | static reloc_howto_type xcoff64_dynamic_reloc = | |
1998 | HOWTO (0, /* type */ | |
1999 | 0, /* rightshift */ | |
2000 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
2001 | 64, /* bitsize */ | |
2002 | false, /* pc_relative */ | |
2003 | 0, /* bitpos */ | |
2004 | complain_overflow_bitfield, /* complain_on_overflow */ | |
2005 | 0, /* special_function */ | |
2006 | "R_POS", /* name */ | |
2007 | true, /* partial_inplace */ | |
2008 | MINUS_ONE, /* src_mask */ | |
2009 | MINUS_ONE, /* dst_mask */ | |
2010 | false); /* pcrel_offset */ | |
2011 | ||
2012 | static unsigned long xcoff64_glink_code[10] = | |
2013 | { | |
2014 | 0xe9820000, /* ld r12,0(r2) */ | |
2015 | 0xf8410028, /* std r2,40(r1) */ | |
2016 | 0xe80c0000, /* ld r0,0(r12) */ | |
2017 | 0xe84c0008, /* ld r0,8(r12) */ | |
2018 | 0x7c0903a6, /* mtctr r0 */ | |
2019 | 0x4e800420, /* bctr */ | |
2020 | 0x00000000, /* start of traceback table */ | |
2021 | 0x000ca000, /* traceback table */ | |
2022 | 0x00000000, /* traceback table */ | |
2023 | 0x00000018, /* ??? */ | |
2024 | }; | |
2025 | ||
2026 | static const struct xcoff_backend_data_rec bfd_xcoff_backend_data = | |
2027 | { | |
2028 | { /* COFF backend, defined in libcoff.h */ | |
2029 | _bfd_xcoff64_swap_aux_in, /* _bfd_coff_swap_aux_in */ | |
2030 | _bfd_xcoff64_swap_sym_in, /* _bfd_coff_swap_sym_in */ | |
2031 | _bfd_xcoff64_swap_lineno_in, /* _bfd_coff_swap_lineno_in */ | |
2032 | _bfd_xcoff64_swap_aux_out, /* _bfd_swap_aux_out */ | |
2033 | _bfd_xcoff64_swap_sym_out, /* _bfd_swap_sym_out */ | |
2034 | _bfd_xcoff64_swap_lineno_out, /* _bfd_swap_lineno_out */ | |
2035 | coff_swap_reloc_out, /* _bfd_swap_reloc_out */ | |
2036 | coff_swap_filehdr_out, /* _bfd_swap_filehdr_out */ | |
2037 | coff_swap_aouthdr_out, /* _bfd_swap_aouthdr_out */ | |
2038 | coff_swap_scnhdr_out, /* _bfd_swap_scnhdr_out */ | |
2039 | FILHSZ, /* _bfd_filhsz */ | |
2040 | AOUTSZ, /* _bfd_aoutsz */ | |
2041 | SCNHSZ, /* _bfd_scnhsz */ | |
2042 | SYMESZ, /* _bfd_symesz */ | |
2043 | AUXESZ, /* _bfd_auxesz */ | |
2044 | RELSZ, /* _bfd_relsz */ | |
2045 | LINESZ, /* _bfd_linesz */ | |
2046 | FILNMLEN, /* _bfd_filnmlen */ | |
2047 | true, /* _bfd_coff_long_filenames */ | |
2048 | false, /* _bfd_coff_long_section_names */ | |
2049 | (3), /* _bfd_coff_default_section_alignment_power */ | |
2050 | true, /* _bfd_coff_force_symnames_in_strings */ | |
2051 | 4, /* _bfd_coff_debug_string_prefix_length */ | |
2052 | coff_swap_filehdr_in, /* _bfd_coff_swap_filehdr_in */ | |
2053 | coff_swap_aouthdr_in, /* _bfd_swap_aouthdr_in */ | |
2054 | coff_swap_scnhdr_in, /* _bfd_swap_scnhdr_in */ | |
2055 | coff_swap_reloc_in, /* _bfd_reloc_in */ | |
2056 | coff_bad_format_hook, /* _bfd_bad_format_hook */ | |
2057 | coff_set_arch_mach_hook, /* _bfd_set_arch_mach_hook */ | |
2058 | coff_mkobject_hook, /* _bfd_mkobject_hook */ | |
2059 | styp_to_sec_flags, /* _bfd_syp_to_sec_flags */ | |
2060 | coff_set_alignment_hook, /* _bfd_set_alignment_hook */ | |
2061 | coff_slurp_symbol_table, /* _bfd_coff_slurp_symbol_table */ | |
2062 | symname_in_debug_hook, /* _coff_symname_in_debug_hook */ | |
2063 | coff_pointerize_aux_hook, /* _bfd_coff_pointerize_aux_hook */ | |
2064 | coff_print_aux, /* bfd_coff_print_aux */ | |
2065 | dummy_reloc16_extra_cases, /* _bfd_coff_reloc16_extra_cases */ | |
2066 | dummy_reloc16_estimate, /* _bfd_coff_reloc16_estimate */ | |
2067 | NULL, /* bfd_coff_sym_is_global */ | |
2068 | /* _bfd_coff_compute_section_file_positions */ | |
2069 | coff_compute_section_file_positions, | |
2070 | NULL , /* _bfd_coff_start_final_link */ | |
2071 | xcoff64_ppc_relocate_section, /* _bfd_coff_relocate_section */ | |
2072 | coff_rtype_to_howto, /* _bfd_coff_rtype_to_howto */ | |
2073 | NULL , /* _bfd_coff_addust_symndx */ | |
2074 | _bfd_generic_link_add_one_symbol, /* _bfd_coff_add_one_symbol */ | |
2075 | coff_link_output_has_begun, /* _bfd_coff_link_output_has_begun */ | |
2076 | coff_final_link_postscript /* _bfd_coff_final_link_postscript */ | |
2077 | }, | |
2078 | ||
2079 | 0x01EF, /* magic number */ | |
2080 | bfd_arch_powerpc, /* architecture */ | |
2081 | bfd_mach_ppc_620, /* machine */ | |
2082 | ||
2083 | /* function pointers to xcoff specific swap routines */ | |
2084 | xcoff64_swap_ldhdr_in, /* _xcoff_swap_ldhdr_in */ | |
2085 | xcoff64_swap_ldhdr_out, /* _xcoff_swap_ldhdr_out */ | |
2086 | xcoff64_swap_ldsym_in, /* _xcoff_swap_ldsym_in */ | |
2087 | xcoff64_swap_ldsym_out, /* _xcoff_swap_ldsym_out */ | |
2088 | xcoff64_swap_ldrel_in, /* _xcoff_swap_ldrel_in */ | |
2089 | xcoff64_swap_ldrel_out, /* _xcoff_swap_ldrel_out */ | |
2090 | ||
2091 | /* sizes */ | |
2092 | LDHDRSZ, /* _xcoff_ldhdrsz */ | |
2093 | LDSYMSZ, /* _xcoff_ldsymsz */ | |
2094 | LDRELSZ, /* _xcoff_ldrelsz */ | |
2095 | 24, /* _xcoff_function_descriptor_size */ | |
2096 | 0, /* _xcoff_small_aout_header_size */ | |
2097 | /* versions */ | |
2098 | 2, /* _xcoff_ldhdr_version */ | |
2099 | ||
2100 | /* xcoff vs xcoff64 putting symbol names */ | |
2101 | _bfd_xcoff64_put_symbol_name, /* _xcoff_put_symbol_name */ | |
2102 | _bfd_xcoff64_put_ldsymbol_name, /* _xcoff_put_ldsymbol_name */ | |
2103 | ||
2104 | /* dynamic reloc howto */ | |
2105 | &xcoff64_dynamic_reloc, | |
2106 | ||
2107 | xcoff64_create_csect_from_smclas, | |
2108 | ||
2109 | /* lineno and reloc count overflow */ | |
2110 | xcoff64_is_lineno_count_overflow, | |
2111 | xcoff64_is_reloc_count_overflow, | |
2112 | ||
2113 | xcoff64_loader_symbol_offset, | |
2114 | xcoff64_loader_reloc_offset, | |
2115 | ||
2116 | /* glink */ | |
2117 | &xcoff64_glink_code[0], | |
2118 | 40, /* _xcoff_glink_size */ | |
2119 | ||
2120 | }; | |
2121 | ||
2122 | /* The transfer vector that leads the outside world to all of the above. */ | |
2123 | const bfd_target rs6000coff64_vec = | |
2124 | { | |
2125 | "aixcoff64-rs6000", | |
2126 | bfd_target_xcoff_flavour, | |
2127 | BFD_ENDIAN_BIG, /* data byte order is big */ | |
2128 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
2129 | ||
2130 | (HAS_RELOC | EXEC_P | /* object flags */ | |
2131 | HAS_LINENO | HAS_DEBUG | DYNAMIC | | |
2132 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
2133 | ||
2134 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
2135 | 0, /* leading char */ | |
2136 | '/', /* ar_pad_char */ | |
2137 | 15, /* ar_max_namelen??? FIXMEmgo */ | |
2138 | ||
2139 | /* data */ | |
2140 | bfd_getb64, /* bfd_getx64 */ | |
2141 | bfd_getb_signed_64, /* bfd_getx_signed_64 */ | |
2142 | bfd_putb64, /* bfd_putx64 */ | |
2143 | bfd_getb32, /* bfd_getx32 */ | |
2144 | bfd_getb_signed_32, /* bfd_getx_signed_32 */ | |
2145 | bfd_putb32, /* bfd_putx32 */ | |
2146 | bfd_getb16, /* bfd_getx16 */ | |
2147 | bfd_getb_signed_16, /* bfd_getx_signed_16 */ | |
2148 | bfd_putb16, /* bfd_putx16 */ | |
2149 | ||
2150 | /* hdrs */ | |
2151 | bfd_getb64, /* bfd_h_getx64 */ | |
2152 | bfd_getb_signed_64, /* bfd_h_getx_signed_64 */ | |
2153 | bfd_putb64, /* bfd_h_putx64 */ | |
2154 | bfd_getb32, /* bfd_h_getx32 */ | |
2155 | bfd_getb_signed_32, /* bfd_h_getx_signed_32 */ | |
2156 | bfd_putb32, /* bfd_h_putx32 */ | |
2157 | bfd_getb16, /* bfd_h_getx16 */ | |
2158 | bfd_getb_signed_16, /* bfd_h_getx_signed_16 */ | |
2159 | bfd_putb16, /* bfd_h_putx16 */ | |
2160 | ||
2161 | { /* bfd_check_format */ | |
2162 | _bfd_dummy_target, | |
2163 | coff_object_p, | |
2164 | xcoff64_archive_p, | |
b55039f4 | 2165 | CORE_FILE_P |
beb1bf64 TR |
2166 | }, |
2167 | ||
2168 | { /* bfd_set_format */ | |
2169 | bfd_false, | |
2170 | coff_mkobject, | |
2171 | _bfd_generic_mkarchive, | |
2172 | bfd_false | |
2173 | }, | |
2174 | ||
2175 | {/* bfd_write_contents */ | |
2176 | bfd_false, | |
2177 | xcoff64_write_object_contents, | |
2178 | _bfd_xcoff_write_archive_contents, | |
2179 | bfd_false | |
2180 | }, | |
2181 | ||
2182 | /* Generic */ | |
2183 | bfd_true, /* _close_and_cleanup */ | |
2184 | bfd_true, /* _bfd_free_cached_info */ | |
2185 | coff_new_section_hook, /* _new_section_hook */ | |
2186 | _bfd_generic_get_section_contents, /* _bfd_get_section_contents */ | |
2187 | /* _bfd_get_section_contents_in_window */ | |
2188 | _bfd_generic_get_section_contents_in_window, | |
2189 | ||
2190 | /* Copy */ | |
2191 | _bfd_xcoff_copy_private_bfd_data, /* _bfd_copy_private_bfd */ | |
2192 | /* _bfd_merge_private_bfd_data */ | |
2193 | ((boolean (*) (bfd *, bfd *)) bfd_true), | |
2194 | /* _bfd_copy_pivate_section_data */ | |
2195 | ((boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true), | |
2196 | /* _bfd_copy_private_symbol_data */ | |
2197 | ((boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true), | |
2198 | ((boolean (*) (bfd *, flagword)) bfd_true), /* _bfd_set_private_flags */ | |
2199 | ((boolean (*) (bfd *, void * )) bfd_true), /* _bfd_print_private_bfd_data */ | |
2200 | ||
2201 | /* Core */ | |
b55039f4 L |
2202 | coff_core_file_failing_command, /* _core_file_failing_command */ |
2203 | coff_core_file_failing_signal, /* _core_file_failing_signal */ | |
beb1bf64 | 2204 | /* _core_file_matches_executable_p */ |
b55039f4 | 2205 | coff_core_file_matches_executable_p, |
beb1bf64 TR |
2206 | |
2207 | /* Archive */ | |
2208 | xcoff64_slurp_armap, /* _slurp_armap */ | |
2209 | /* XCOFF archives do not have | |
2210 | anything which corresponds to | |
2211 | an extended name table. */ | |
2212 | bfd_false, /* _slurp_extended_name_table */ | |
2213 | /* _construct_extended_name_table */ | |
2214 | ((boolean (*) (bfd *, char **, bfd_size_type *, const char **)) bfd_false), | |
2215 | bfd_dont_truncate_arname, /* _truncate_arname */ | |
2216 | _bfd_xcoff_write_armap, /* _write_armap */ | |
2217 | _bfd_xcoff_read_ar_hdr, /* _read_ar_hdr */ | |
2218 | xcoff64_openr_next_archived_file, /* _openr_next_archived_file */ | |
2219 | _bfd_generic_get_elt_at_index, /* _get_elt_at_index */ | |
2220 | _bfd_xcoff_generic_stat_arch_elt, /* _generic_dtat_arch_elt */ | |
2221 | /* XCOFF archives do not have | |
2222 | a timestamp. */ | |
2223 | bfd_true, /* _update_armap_timestamp */ | |
2224 | ||
2225 | /* Symbols */ | |
2226 | coff_get_symtab_upper_bound, /* _get_symtab_upper_bound */ | |
2227 | coff_get_symtab, /* _get_symtab */ | |
2228 | coff_make_empty_symbol, /* _make_empty_symbol */ | |
2229 | coff_print_symbol, /* _print_symbol */ | |
2230 | coff_get_symbol_info, /* _get_symbol_info */ | |
2231 | _bfd_xcoff_is_local_label_name, /* _bfd_is_local_label_name */ | |
2232 | coff_get_lineno, /* _get_lineno */ | |
2233 | coff_find_nearest_line, /* _find_nearest_line */ | |
2234 | coff_bfd_make_debug_symbol, /* _bfd_make_debug_symbol */ | |
2235 | _bfd_generic_read_minisymbols, /* _read_minisymbols */ | |
2236 | _bfd_generic_minisymbol_to_symbol, /* _minsymbol_to_symbol */ | |
2237 | ||
2238 | /* Reloc */ | |
2239 | coff_get_reloc_upper_bound, /* _get_reloc_upper_bound */ | |
2240 | coff_canonicalize_reloc, /* _cononicalize_reloc */ | |
2241 | xcoff64_reloc_type_lookup, /* _bfd_reloc_type_lookup */ | |
2242 | ||
2243 | /* Write */ | |
2244 | coff_set_arch_mach, /* _set_arch_mach */ | |
2245 | coff_set_section_contents, /* _set_section_contents */ | |
2246 | ||
2247 | /* Link */ | |
2248 | xcoff64_sizeof_headers, /* _sizeof_headers */ | |
2249 | /* _bfd_get_relocated_section_contents */ | |
2250 | bfd_generic_get_relocated_section_contents, | |
2251 | bfd_generic_relax_section, /* _bfd_relax_section */ | |
2252 | _bfd_xcoff_bfd_link_hash_table_create, /* _bfd_link_hash_table_create */ | |
2253 | _bfd_xcoff_bfd_link_add_symbols, /* _bfd_link_add_symbols */ | |
2254 | _bfd_xcoff_bfd_final_link, /* _bfd_filnal_link */ | |
2255 | _bfd_generic_link_split_section, /* _bfd_link_split_section */ | |
2256 | bfd_generic_gc_sections, /* _bfd_gc_sections */ | |
2257 | bfd_generic_merge_sections, /* _bfd_merge_sections */ | |
2258 | ||
2259 | /* Dynamic */ | |
2260 | /* _get_dynamic_symtab_upper_bound */ | |
2261 | _bfd_xcoff_get_dynamic_symtab_upper_bound, | |
2262 | _bfd_xcoff_canonicalize_dynamic_symtab, /* _cononicalize_dynamic_symtab */ | |
2263 | _bfd_xcoff_get_dynamic_reloc_upper_bound,/* _get_dynamic_reloc_upper_bound */ | |
2264 | _bfd_xcoff_canonicalize_dynamic_reloc, /* _cononicalize_dynamic_reloc */ | |
2265 | ||
2266 | /* Opposite endian version, none exists */ | |
2267 | NULL, | |
2268 | ||
2269 | /* back end data */ | |
2270 | (void *) &bfd_xcoff_backend_data, | |
2271 | }; | |
14958a43 | 2272 | |
14958a43 | 2273 |