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dae31cf5 ILT |
1 | /* Generic ECOFF (Extended-COFF) routines. |
2 | Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc. | |
3 | Original version by Per Bothner. | |
4 | Full support added by Ian Lance Taylor, ian@cygnus.com. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "libbfd.h" | |
25 | #include "seclet.h" | |
26 | #include "aout/ar.h" | |
27 | #include "aout/ranlib.h" | |
28 | ||
29 | /* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines | |
30 | some other stuff which we don't want and which conflicts with stuff | |
31 | we do want. */ | |
32 | #include "libaout.h" | |
33 | #include "aout/aout64.h" | |
34 | #undef N_ABS | |
35 | #undef exec_hdr | |
36 | #undef obj_sym_filepos | |
37 | ||
38 | #include "coff/internal.h" | |
39 | #include "coff/sym.h" | |
40 | #include "coff/symconst.h" | |
41 | #include "coff/ecoff.h" | |
42 | #include "libcoff.h" | |
43 | #include "libecoff.h" | |
44 | \f | |
45 | /* Prototypes for static functions. */ | |
46 | ||
47 | static void ecoff_set_symbol_info PARAMS ((bfd *abfd, SYMR *ecoff_sym, | |
48 | asymbol *asym, int ext, | |
49 | asymbol **indirect_ptr_ptr)); | |
50 | static void ecoff_emit_aggregate PARAMS ((bfd *abfd, char *string, | |
51 | RNDXR *rndx, long isym, | |
52 | CONST char *which)); | |
53 | static char *ecoff_type_to_string PARAMS ((bfd *abfd, union aux_ext *aux_ptr, | |
54 | unsigned int indx, int bigendian)); | |
dae31cf5 ILT |
55 | static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section, |
56 | asymbol **symbols)); | |
57 | static void ecoff_clear_output_flags PARAMS ((bfd *abfd)); | |
58 | static boolean ecoff_rel PARAMS ((bfd *output_bfd, bfd_seclet_type *seclet, | |
59 | asection *output_section, PTR data, | |
60 | boolean relocateable)); | |
61 | static boolean ecoff_dump_seclet PARAMS ((bfd *abfd, bfd_seclet_type *seclet, | |
62 | asection *section, PTR data, | |
63 | boolean relocateable)); | |
64 | static long ecoff_add_string PARAMS ((bfd *output_bfd, FDR *fdr, | |
65 | CONST char *string, boolean external)); | |
66 | static boolean ecoff_get_debug PARAMS ((bfd *output_bfd, | |
67 | bfd_seclet_type *seclet, | |
68 | asection *section, | |
69 | boolean relocateable)); | |
70 | static void ecoff_compute_section_file_positions PARAMS ((bfd *abfd)); | |
71 | static unsigned int ecoff_armap_hash PARAMS ((CONST char *s, | |
72 | unsigned int *rehash, | |
73 | unsigned int size, | |
74 | unsigned int hlog)); | |
75 | \f | |
dae31cf5 ILT |
76 | /* This stuff is somewhat copied from coffcode.h. */ |
77 | ||
78 | static asection bfd_debug_section = { "*DEBUG*" }; | |
79 | ||
48edba81 ILT |
80 | /* Create an ECOFF object. */ |
81 | ||
82 | boolean | |
83 | ecoff_mkobject (abfd) | |
84 | bfd *abfd; | |
85 | { | |
86 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
87 | bfd_zalloc (abfd, sizeof (ecoff_data_type))); | |
88 | if (abfd->tdata.ecoff_obj_data == NULL) | |
89 | { | |
90 | bfd_error = no_memory; | |
91 | return false; | |
92 | } | |
93 | ||
94 | /* Always create a .scommon section for every BFD. This is a hack so | |
95 | that the linker has something to attach scSCommon symbols to. */ | |
96 | bfd_make_section (abfd, SCOMMON); | |
97 | ||
98 | return true; | |
99 | } | |
100 | ||
dae31cf5 ILT |
101 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ |
102 | ||
103 | asection * | |
104 | ecoff_make_section_hook (abfd, name) | |
105 | bfd *abfd; | |
106 | char *name; | |
107 | { | |
108 | return (asection *) NULL; | |
109 | } | |
110 | ||
111 | /* Initialize a new section. */ | |
112 | ||
113 | boolean | |
114 | ecoff_new_section_hook (abfd, section) | |
115 | bfd *abfd; | |
116 | asection *section; | |
117 | { | |
118 | section->alignment_power = abfd->xvec->align_power_min; | |
119 | ||
120 | if (strcmp (section->name, _TEXT) == 0) | |
121 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
122 | else if (strcmp (section->name, _DATA) == 0 | |
123 | || strcmp (section->name, _SDATA) == 0) | |
124 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
125 | else if (strcmp (section->name, _RDATA) == 0 | |
126 | || strcmp (section->name, _LIT8) == 0 | |
127 | || strcmp (section->name, _LIT4) == 0) | |
128 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
129 | else if (strcmp (section->name, _BSS) == 0 | |
130 | || strcmp (section->name, _SBSS) == 0) | |
131 | section->flags |= SEC_ALLOC; | |
132 | ||
133 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
134 | uncertain about .init on some systems and I don't know how shared | |
135 | libraries work. */ | |
136 | ||
137 | return true; | |
138 | } | |
139 | ||
140 | /* Determine the machine architecture and type. */ | |
141 | ||
142 | boolean | |
143 | ecoff_set_arch_mach_hook (abfd, filehdr) | |
144 | bfd *abfd; | |
145 | PTR filehdr; | |
146 | { | |
147 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
148 | enum bfd_architecture arch; | |
149 | ||
150 | switch (internal_f->f_magic) | |
151 | { | |
152 | case MIPS_MAGIC_1: | |
153 | case MIPS_MAGIC_LITTLE: | |
154 | case MIPS_MAGIC_BIG: | |
155 | arch = bfd_arch_mips; | |
156 | break; | |
157 | ||
158 | case ALPHA_MAGIC: | |
159 | arch = bfd_arch_alpha; | |
160 | break; | |
161 | ||
162 | default: | |
163 | arch = bfd_arch_obscure; | |
164 | break; | |
165 | } | |
166 | ||
167 | bfd_default_set_arch_mach (abfd, arch, (unsigned long) 0); | |
168 | ||
169 | return true; | |
170 | } | |
171 | ||
172 | /* Get the section s_flags to use for a section. */ | |
173 | ||
174 | long | |
175 | ecoff_sec_to_styp_flags (name, flags) | |
176 | CONST char *name; | |
177 | flagword flags; | |
178 | { | |
179 | long styp; | |
180 | ||
181 | styp = 0; | |
182 | ||
183 | if (strcmp (name, _TEXT) == 0) | |
184 | styp = STYP_TEXT; | |
185 | else if (strcmp (name, _DATA) == 0) | |
186 | styp = STYP_DATA; | |
187 | else if (strcmp (name, _SDATA) == 0) | |
188 | styp = STYP_SDATA; | |
189 | else if (strcmp (name, _RDATA) == 0) | |
190 | styp = STYP_RDATA; | |
191 | else if (strcmp (name, _LIT8) == 0) | |
192 | styp = STYP_LIT8; | |
193 | else if (strcmp (name, _LIT4) == 0) | |
194 | styp = STYP_LIT4; | |
195 | else if (strcmp (name, _BSS) == 0) | |
196 | styp = STYP_BSS; | |
197 | else if (strcmp (name, _SBSS) == 0) | |
198 | styp = STYP_SBSS; | |
199 | else if (strcmp (name, _INIT) == 0) | |
200 | styp = STYP_ECOFF_INIT; | |
201 | else if (flags & SEC_CODE) | |
202 | styp = STYP_TEXT; | |
203 | else if (flags & SEC_DATA) | |
204 | styp = STYP_DATA; | |
205 | else if (flags & SEC_READONLY) | |
206 | styp = STYP_RDATA; | |
207 | else if (flags & SEC_LOAD) | |
208 | styp = STYP_REG; | |
209 | else | |
210 | styp = STYP_BSS; | |
211 | ||
212 | if (flags & SEC_NEVER_LOAD) | |
213 | styp |= STYP_NOLOAD; | |
214 | ||
215 | return styp; | |
216 | } | |
217 | ||
218 | /* Get the BFD flags to use for a section. */ | |
219 | ||
220 | flagword | |
221 | ecoff_styp_to_sec_flags (abfd, hdr) | |
222 | bfd *abfd; | |
223 | PTR hdr; | |
224 | { | |
225 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
226 | long styp_flags = internal_s->s_flags; | |
227 | flagword sec_flags=0; | |
228 | ||
229 | if (styp_flags & STYP_NOLOAD) | |
230 | sec_flags |= SEC_NEVER_LOAD; | |
231 | ||
232 | /* For 386 COFF, at least, an unloadable text or data section is | |
233 | actually a shared library section. */ | |
234 | if ((styp_flags & STYP_TEXT) | |
235 | || (styp_flags & STYP_ECOFF_INIT)) | |
236 | { | |
237 | if (sec_flags & SEC_NEVER_LOAD) | |
238 | sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; | |
239 | else | |
240 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
241 | } | |
242 | else if ((styp_flags & STYP_DATA) | |
243 | || (styp_flags & STYP_RDATA) | |
244 | || (styp_flags & STYP_SDATA)) | |
245 | { | |
246 | if (sec_flags & SEC_NEVER_LOAD) | |
247 | sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; | |
248 | else | |
249 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
250 | if (styp_flags & STYP_RDATA) | |
251 | sec_flags |= SEC_READONLY; | |
252 | } | |
253 | else if ((styp_flags & STYP_BSS) | |
254 | || (styp_flags & STYP_SBSS)) | |
255 | { | |
256 | sec_flags |= SEC_ALLOC; | |
257 | } | |
258 | else if (styp_flags & STYP_INFO) | |
259 | { | |
260 | sec_flags |= SEC_NEVER_LOAD; | |
261 | } | |
262 | else if ((styp_flags & STYP_LIT8) | |
263 | || (styp_flags & STYP_LIT4)) | |
264 | { | |
265 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
266 | } | |
267 | else | |
268 | { | |
269 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
270 | } | |
271 | ||
272 | return sec_flags; | |
273 | } | |
274 | \f | |
275 | /* Routines to swap auxiliary information in and out. I am assuming | |
276 | that the auxiliary information format is always going to be target | |
277 | independent. */ | |
278 | ||
279 | /* Swap in a type information record. | |
280 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
281 | info comes from the file header record (fh-fBigendian). */ | |
282 | ||
283 | void | |
284 | ecoff_swap_tir_in (bigend, ext_copy, intern) | |
285 | int bigend; | |
286 | struct tir_ext *ext_copy; | |
287 | TIR *intern; | |
288 | { | |
289 | struct tir_ext ext[1]; | |
290 | ||
291 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
292 | ||
293 | /* now the fun stuff... */ | |
294 | if (bigend) { | |
295 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_BIG); | |
296 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_BIG); | |
297 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_BIG) | |
298 | >> TIR_BITS1_BT_SH_BIG; | |
299 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_BIG) | |
300 | >> TIR_BITS_TQ4_SH_BIG; | |
301 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_BIG) | |
302 | >> TIR_BITS_TQ5_SH_BIG; | |
303 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_BIG) | |
304 | >> TIR_BITS_TQ0_SH_BIG; | |
305 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_BIG) | |
306 | >> TIR_BITS_TQ1_SH_BIG; | |
307 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_BIG) | |
308 | >> TIR_BITS_TQ2_SH_BIG; | |
309 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_BIG) | |
310 | >> TIR_BITS_TQ3_SH_BIG; | |
311 | } else { | |
312 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_LITTLE); | |
313 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_LITTLE); | |
314 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_LITTLE) | |
315 | >> TIR_BITS1_BT_SH_LITTLE; | |
316 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_LITTLE) | |
317 | >> TIR_BITS_TQ4_SH_LITTLE; | |
318 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_LITTLE) | |
319 | >> TIR_BITS_TQ5_SH_LITTLE; | |
320 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_LITTLE) | |
321 | >> TIR_BITS_TQ0_SH_LITTLE; | |
322 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_LITTLE) | |
323 | >> TIR_BITS_TQ1_SH_LITTLE; | |
324 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_LITTLE) | |
325 | >> TIR_BITS_TQ2_SH_LITTLE; | |
326 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_LITTLE) | |
327 | >> TIR_BITS_TQ3_SH_LITTLE; | |
328 | } | |
329 | ||
330 | #ifdef TEST | |
331 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
332 | abort(); | |
333 | #endif | |
334 | } | |
335 | ||
336 | /* Swap out a type information record. | |
337 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
338 | info comes from the file header record (fh-fBigendian). */ | |
339 | ||
340 | void | |
341 | ecoff_swap_tir_out (bigend, intern_copy, ext) | |
342 | int bigend; | |
343 | TIR *intern_copy; | |
344 | struct tir_ext *ext; | |
345 | { | |
346 | TIR intern[1]; | |
347 | ||
348 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
349 | ||
350 | /* now the fun stuff... */ | |
351 | if (bigend) { | |
352 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_BIG : 0) | |
353 | | (intern->continued ? TIR_BITS1_CONTINUED_BIG : 0) | |
354 | | ((intern->bt << TIR_BITS1_BT_SH_BIG) | |
355 | & TIR_BITS1_BT_BIG)); | |
356 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_BIG) | |
357 | & TIR_BITS_TQ4_BIG) | |
358 | | ((intern->tq5 << TIR_BITS_TQ5_SH_BIG) | |
359 | & TIR_BITS_TQ5_BIG)); | |
360 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_BIG) | |
361 | & TIR_BITS_TQ0_BIG) | |
362 | | ((intern->tq1 << TIR_BITS_TQ1_SH_BIG) | |
363 | & TIR_BITS_TQ1_BIG)); | |
364 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_BIG) | |
365 | & TIR_BITS_TQ2_BIG) | |
366 | | ((intern->tq3 << TIR_BITS_TQ3_SH_BIG) | |
367 | & TIR_BITS_TQ3_BIG)); | |
368 | } else { | |
369 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_LITTLE : 0) | |
370 | | (intern->continued ? TIR_BITS1_CONTINUED_LITTLE : 0) | |
371 | | ((intern->bt << TIR_BITS1_BT_SH_LITTLE) | |
372 | & TIR_BITS1_BT_LITTLE)); | |
373 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_LITTLE) | |
374 | & TIR_BITS_TQ4_LITTLE) | |
375 | | ((intern->tq5 << TIR_BITS_TQ5_SH_LITTLE) | |
376 | & TIR_BITS_TQ5_LITTLE)); | |
377 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_LITTLE) | |
378 | & TIR_BITS_TQ0_LITTLE) | |
379 | | ((intern->tq1 << TIR_BITS_TQ1_SH_LITTLE) | |
380 | & TIR_BITS_TQ1_LITTLE)); | |
381 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_LITTLE) | |
382 | & TIR_BITS_TQ2_LITTLE) | |
383 | | ((intern->tq3 << TIR_BITS_TQ3_SH_LITTLE) | |
384 | & TIR_BITS_TQ3_LITTLE)); | |
385 | } | |
386 | ||
387 | #ifdef TEST | |
388 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
389 | abort(); | |
390 | #endif | |
391 | } | |
392 | ||
393 | /* Swap in a relative symbol record. BIGEND says whether it is in | |
394 | big-endian or little-endian format.*/ | |
395 | ||
396 | void | |
397 | ecoff_swap_rndx_in (bigend, ext_copy, intern) | |
398 | int bigend; | |
399 | struct rndx_ext *ext_copy; | |
400 | RNDXR *intern; | |
401 | { | |
402 | struct rndx_ext ext[1]; | |
403 | ||
404 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
405 | ||
406 | /* now the fun stuff... */ | |
407 | if (bigend) { | |
408 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_BIG) | |
409 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_BIG) | |
410 | >> RNDX_BITS1_RFD_SH_BIG); | |
411 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_BIG) | |
412 | << RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
413 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_BIG) | |
414 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_BIG); | |
415 | } else { | |
416 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_LITTLE) | |
417 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_LITTLE) | |
418 | << RNDX_BITS1_RFD_SH_LEFT_LITTLE); | |
419 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_LITTLE) | |
420 | >> RNDX_BITS1_INDEX_SH_LITTLE) | |
421 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_LITTLE) | |
422 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_LITTLE); | |
423 | } | |
424 | ||
425 | #ifdef TEST | |
426 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
427 | abort(); | |
428 | #endif | |
429 | } | |
430 | ||
431 | /* Swap out a relative symbol record. BIGEND says whether it is in | |
432 | big-endian or little-endian format.*/ | |
433 | ||
434 | void | |
435 | ecoff_swap_rndx_out (bigend, intern_copy, ext) | |
436 | int bigend; | |
437 | RNDXR *intern_copy; | |
438 | struct rndx_ext *ext; | |
439 | { | |
440 | RNDXR intern[1]; | |
441 | ||
442 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
443 | ||
444 | /* now the fun stuff... */ | |
445 | if (bigend) { | |
446 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_BIG; | |
447 | ext->r_bits[1] = (((intern->rfd << RNDX_BITS1_RFD_SH_BIG) | |
448 | & RNDX_BITS1_RFD_BIG) | |
449 | | ((intern->index >> RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
450 | & RNDX_BITS1_INDEX_BIG)); | |
451 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_BIG; | |
452 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_BIG; | |
453 | } else { | |
454 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_LITTLE; | |
455 | ext->r_bits[1] = (((intern->rfd >> RNDX_BITS1_RFD_SH_LEFT_LITTLE) | |
456 | & RNDX_BITS1_RFD_LITTLE) | |
457 | | ((intern->index << RNDX_BITS1_INDEX_SH_LITTLE) | |
458 | & RNDX_BITS1_INDEX_LITTLE)); | |
459 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_LITTLE; | |
460 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_LITTLE; | |
461 | } | |
462 | ||
463 | #ifdef TEST | |
464 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
465 | abort(); | |
466 | #endif | |
467 | } | |
468 | \f | |
469 | /* Read in and swap the important symbolic information for an ECOFF | |
470 | object file. This is called by gdb. */ | |
471 | ||
472 | boolean | |
473 | ecoff_slurp_symbolic_info (abfd) | |
474 | bfd *abfd; | |
475 | { | |
476 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
477 | bfd_size_type external_hdr_size; | |
478 | HDRR *internal_symhdr; | |
479 | bfd_size_type raw_base; | |
480 | bfd_size_type raw_size; | |
481 | PTR raw; | |
482 | bfd_size_type external_fdr_size; | |
483 | char *fraw_src; | |
484 | char *fraw_end; | |
485 | struct fdr *fdr_ptr; | |
486 | ||
487 | /* Check whether we've already gotten it, and whether there's any to | |
488 | get. */ | |
489 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
490 | return true; | |
491 | if (ecoff_data (abfd)->sym_filepos == 0) | |
492 | { | |
493 | bfd_get_symcount (abfd) = 0; | |
494 | return true; | |
495 | } | |
496 | ||
497 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
498 | as read from the file header, but on ECOFF this is always the | |
499 | size of the symbolic information header. It would be cleaner to | |
500 | handle this when we first read the file in coffgen.c. */ | |
501 | external_hdr_size = backend->external_hdr_size; | |
502 | if (bfd_get_symcount (abfd) != external_hdr_size) | |
503 | { | |
504 | bfd_error = bad_value; | |
505 | return false; | |
506 | } | |
507 | ||
508 | /* Read the symbolic information header. */ | |
509 | raw = (PTR) alloca (external_hdr_size); | |
510 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 | |
511 | || (bfd_read (raw, external_hdr_size, 1, abfd) | |
512 | != external_hdr_size)) | |
513 | { | |
514 | bfd_error = system_call_error; | |
515 | return false; | |
516 | } | |
517 | internal_symhdr = &ecoff_data (abfd)->symbolic_header; | |
518 | (*backend->swap_hdr_in) (abfd, raw, internal_symhdr); | |
519 | ||
48edba81 | 520 | if (internal_symhdr->magic != backend->sym_magic) |
dae31cf5 ILT |
521 | { |
522 | bfd_error = bad_value; | |
523 | return false; | |
524 | } | |
525 | ||
526 | /* Now we can get the correct number of symbols. */ | |
527 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
528 | + internal_symhdr->iextMax); | |
529 | ||
530 | /* Read all the symbolic information at once. */ | |
531 | raw_base = ecoff_data (abfd)->sym_filepos + external_hdr_size; | |
532 | ||
533 | if (internal_symhdr->cbExtOffset != 0) | |
534 | raw_size = (internal_symhdr->cbExtOffset | |
535 | - raw_base | |
536 | + internal_symhdr->iextMax * backend->external_ext_size); | |
537 | else | |
538 | { | |
539 | long cbline, issmax, issextmax; | |
540 | ||
541 | cbline = (internal_symhdr->cbLine + 3) &~ 3; | |
542 | issmax = (internal_symhdr->issMax + 3) &~ 3; | |
543 | issextmax = (internal_symhdr->issExtMax + 3) &~ 3; | |
544 | raw_size = (cbline * sizeof (unsigned char) | |
545 | + internal_symhdr->idnMax * backend->external_dnr_size | |
546 | + internal_symhdr->ipdMax * backend->external_pdr_size | |
547 | + internal_symhdr->isymMax * backend->external_sym_size | |
548 | + internal_symhdr->ioptMax * backend->external_opt_size | |
549 | + internal_symhdr->iauxMax * sizeof (union aux_ext) | |
550 | + issmax * sizeof (char) | |
551 | + issextmax * sizeof (char) | |
552 | + internal_symhdr->ifdMax * backend->external_fdr_size | |
553 | + internal_symhdr->crfd * backend->external_rfd_size | |
554 | + internal_symhdr->iextMax * backend->external_ext_size); | |
555 | } | |
556 | ||
557 | if (raw_size == 0) | |
558 | { | |
559 | ecoff_data (abfd)->sym_filepos = 0; | |
560 | return true; | |
561 | } | |
562 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
563 | if (raw == NULL) | |
564 | { | |
565 | bfd_error = no_memory; | |
566 | return false; | |
567 | } | |
568 | if (bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
569 | { | |
570 | bfd_error = system_call_error; | |
571 | bfd_release (abfd, raw); | |
572 | return false; | |
573 | } | |
574 | ||
575 | ecoff_data (abfd)->raw_size = raw_size; | |
576 | ecoff_data (abfd)->raw_syments = raw; | |
577 | ||
578 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
579 | #define FIX(off1, off2, type) \ | |
580 | if (internal_symhdr->off1 == 0) \ | |
581 | ecoff_data (abfd)->off2 = (type) NULL; \ | |
582 | else \ | |
583 | ecoff_data (abfd)->off2 = (type) ((char *) raw \ | |
584 | + internal_symhdr->off1 \ | |
585 | - raw_base) | |
586 | FIX (cbLineOffset, line, unsigned char *); | |
587 | FIX (cbDnOffset, external_dnr, PTR); | |
588 | FIX (cbPdOffset, external_pdr, PTR); | |
589 | FIX (cbSymOffset, external_sym, PTR); | |
590 | FIX (cbOptOffset, external_opt, PTR); | |
591 | FIX (cbAuxOffset, external_aux, union aux_ext *); | |
592 | FIX (cbSsOffset, ss, char *); | |
593 | FIX (cbSsExtOffset, ssext, char *); | |
594 | FIX (cbFdOffset, external_fdr, PTR); | |
595 | FIX (cbRfdOffset, external_rfd, PTR); | |
596 | FIX (cbExtOffset, external_ext, PTR); | |
597 | #undef FIX | |
598 | ||
599 | /* I don't want to always swap all the data, because it will just | |
600 | waste time and most programs will never look at it. The only | |
601 | time the linker needs most of the debugging information swapped | |
602 | is when linking big-endian and little-endian MIPS object files | |
603 | together, which is not a common occurrence. | |
604 | ||
605 | We need to look at the fdr to deal with a lot of information in | |
606 | the symbols, so we swap them here. */ | |
607 | ecoff_data (abfd)->fdr = | |
608 | (struct fdr *) bfd_alloc (abfd, | |
609 | (internal_symhdr->ifdMax * | |
610 | sizeof (struct fdr))); | |
611 | if (ecoff_data (abfd)->fdr == NULL) | |
612 | { | |
613 | bfd_error = no_memory; | |
614 | return false; | |
615 | } | |
616 | external_fdr_size = backend->external_fdr_size; | |
617 | fdr_ptr = ecoff_data (abfd)->fdr; | |
618 | fraw_src = (char *) ecoff_data (abfd)->external_fdr; | |
619 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; | |
620 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
621 | (*backend->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); | |
622 | ||
623 | return true; | |
624 | } | |
625 | \f | |
626 | /* ECOFF symbol table routines. The ECOFF symbol table is described | |
627 | in gcc/mips-tfile.c. */ | |
628 | ||
629 | /* ECOFF uses two common sections. One is the usual one, and the | |
630 | other is for small objects. All the small objects are kept | |
631 | together, and then referenced via the gp pointer, which yields | |
632 | faster assembler code. This is what we use for the small common | |
633 | section. */ | |
634 | static asection ecoff_scom_section; | |
635 | static asymbol ecoff_scom_symbol; | |
636 | static asymbol *ecoff_scom_symbol_ptr; | |
637 | ||
638 | /* Create an empty symbol. */ | |
639 | ||
640 | asymbol * | |
641 | ecoff_make_empty_symbol (abfd) | |
642 | bfd *abfd; | |
643 | { | |
644 | ecoff_symbol_type *new; | |
645 | ||
646 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
647 | if (new == (ecoff_symbol_type *) NULL) | |
648 | { | |
649 | bfd_error = no_memory; | |
650 | return (asymbol *) NULL; | |
651 | } | |
652 | memset (new, 0, sizeof *new); | |
653 | new->symbol.section = (asection *) NULL; | |
654 | new->fdr = (FDR *) NULL; | |
655 | new->local = false; | |
656 | new->native = NULL; | |
657 | new->symbol.the_bfd = abfd; | |
658 | return &new->symbol; | |
659 | } | |
660 | ||
661 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
662 | ||
663 | static void | |
664 | ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, indirect_ptr_ptr) | |
665 | bfd *abfd; | |
666 | SYMR *ecoff_sym; | |
667 | asymbol *asym; | |
668 | int ext; | |
669 | asymbol **indirect_ptr_ptr; | |
670 | { | |
671 | asym->the_bfd = abfd; | |
672 | asym->value = ecoff_sym->value; | |
673 | asym->section = &bfd_debug_section; | |
674 | asym->udata = NULL; | |
675 | ||
676 | /* An indirect symbol requires two consecutive stabs symbols. */ | |
677 | if (*indirect_ptr_ptr != (asymbol *) NULL) | |
678 | { | |
679 | BFD_ASSERT (ECOFF_IS_STAB (ecoff_sym)); | |
680 | ||
681 | /* @@ Stuffing pointers into integers is a no-no. | |
682 | We can usually get away with it if the integer is | |
683 | large enough though. */ | |
684 | if (sizeof (asym) > sizeof (bfd_vma)) | |
685 | abort (); | |
686 | (*indirect_ptr_ptr)->value = (bfd_vma) asym; | |
687 | ||
688 | asym->flags = BSF_DEBUGGING; | |
689 | asym->section = &bfd_und_section; | |
690 | *indirect_ptr_ptr = NULL; | |
691 | return; | |
692 | } | |
693 | ||
694 | if (ECOFF_IS_STAB (ecoff_sym) | |
695 | && (ECOFF_UNMARK_STAB (ecoff_sym->index) | N_EXT) == (N_INDR | N_EXT)) | |
696 | { | |
697 | asym->flags = BSF_DEBUGGING | BSF_INDIRECT; | |
698 | asym->section = &bfd_ind_section; | |
699 | /* Pass this symbol on to the next call to this function. */ | |
700 | *indirect_ptr_ptr = asym; | |
701 | return; | |
702 | } | |
703 | ||
704 | /* Most symbol types are just for debugging. */ | |
705 | switch (ecoff_sym->st) | |
706 | { | |
707 | case stGlobal: | |
708 | case stStatic: | |
709 | case stLabel: | |
710 | case stProc: | |
711 | case stStaticProc: | |
712 | break; | |
713 | case stNil: | |
714 | if (ECOFF_IS_STAB (ecoff_sym)) | |
715 | { | |
716 | asym->flags = BSF_DEBUGGING; | |
717 | return; | |
718 | } | |
719 | break; | |
720 | default: | |
721 | asym->flags = BSF_DEBUGGING; | |
722 | return; | |
723 | } | |
724 | ||
725 | if (ext) | |
726 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
727 | else | |
728 | asym->flags = BSF_LOCAL; | |
729 | switch (ecoff_sym->sc) | |
730 | { | |
731 | case scNil: | |
732 | /* Used for compiler generated labels. Leave them in the | |
733 | debugging section, and mark them as local. If BSF_DEBUGGING | |
734 | is set, then nm does not display them for some reason. If no | |
735 | flags are set then the linker whines about them. */ | |
736 | asym->flags = BSF_LOCAL; | |
737 | break; | |
738 | case scText: | |
739 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
740 | asym->value -= asym->section->vma; | |
741 | break; | |
742 | case scData: | |
743 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
744 | asym->value -= asym->section->vma; | |
745 | break; | |
746 | case scBss: | |
70bec8b8 ILT |
747 | asym->section = bfd_make_section_old_way (abfd, ".bss"); |
748 | asym->value -= asym->section->vma; | |
dae31cf5 ILT |
749 | break; |
750 | case scRegister: | |
751 | asym->flags = BSF_DEBUGGING; | |
752 | break; | |
753 | case scAbs: | |
754 | asym->section = &bfd_abs_section; | |
755 | break; | |
756 | case scUndefined: | |
757 | asym->section = &bfd_und_section; | |
758 | asym->flags = 0; | |
759 | asym->value = 0; | |
760 | break; | |
761 | case scCdbLocal: | |
762 | case scBits: | |
763 | case scCdbSystem: | |
764 | case scRegImage: | |
765 | case scInfo: | |
766 | case scUserStruct: | |
767 | asym->flags = BSF_DEBUGGING; | |
768 | break; | |
769 | case scSData: | |
770 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
771 | asym->value -= asym->section->vma; | |
772 | break; | |
773 | case scSBss: | |
774 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); | |
70bec8b8 | 775 | asym->value -= asym->section->vma; |
dae31cf5 ILT |
776 | break; |
777 | case scRData: | |
778 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
779 | asym->value -= asym->section->vma; | |
780 | break; | |
781 | case scVar: | |
782 | asym->flags = BSF_DEBUGGING; | |
783 | break; | |
784 | case scCommon: | |
785 | if (asym->value > ecoff_data (abfd)->gp_size) | |
786 | { | |
787 | asym->section = &bfd_com_section; | |
788 | asym->flags = 0; | |
789 | break; | |
790 | } | |
791 | /* Fall through. */ | |
792 | case scSCommon: | |
793 | if (ecoff_scom_section.name == NULL) | |
794 | { | |
795 | /* Initialize the small common section. */ | |
796 | ecoff_scom_section.name = SCOMMON; | |
797 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
798 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
799 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
800 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
801 | ecoff_scom_symbol.name = SCOMMON; | |
802 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
803 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
804 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
805 | } | |
806 | asym->section = &ecoff_scom_section; | |
807 | asym->flags = 0; | |
808 | break; | |
809 | case scVarRegister: | |
810 | case scVariant: | |
811 | asym->flags = BSF_DEBUGGING; | |
812 | break; | |
813 | case scSUndefined: | |
814 | asym->section = &bfd_und_section; | |
815 | asym->flags = 0; | |
816 | asym->value = 0; | |
817 | break; | |
818 | case scInit: | |
819 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
820 | asym->value -= asym->section->vma; | |
821 | break; | |
822 | case scBasedVar: | |
823 | case scXData: | |
824 | case scPData: | |
825 | asym->flags = BSF_DEBUGGING; | |
826 | break; | |
827 | case scFini: | |
828 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
829 | asym->value -= asym->section->vma; | |
830 | break; | |
831 | default: | |
832 | break; | |
833 | } | |
834 | ||
835 | /* Look for special constructors symbols and make relocation entries | |
836 | in a special construction section. These are produced by the | |
837 | -fgnu-linker argument to g++. */ | |
838 | if (ECOFF_IS_STAB (ecoff_sym)) | |
839 | { | |
840 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) | |
841 | { | |
842 | default: | |
843 | break; | |
844 | ||
845 | case N_SETA: | |
846 | case N_SETT: | |
847 | case N_SETD: | |
848 | case N_SETB: | |
849 | { | |
850 | const char *name; | |
851 | asection *section; | |
852 | arelent_chain *reloc_chain; | |
853 | unsigned int bitsize; | |
dae31cf5 ILT |
854 | |
855 | /* Get a section with the same name as the symbol (usually | |
856 | __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the | |
857 | name ___CTOR_LIST (three underscores). We need | |
858 | __CTOR_LIST (two underscores), since ECOFF doesn't use | |
859 | a leading underscore. This should be handled by gcc, | |
860 | but instead we do it here. Actually, this should all | |
861 | be done differently anyhow. */ | |
862 | name = bfd_asymbol_name (asym); | |
863 | if (name[0] == '_' && name[1] == '_' && name[2] == '_') | |
864 | { | |
865 | ++name; | |
866 | asym->name = name; | |
867 | } | |
868 | section = bfd_get_section_by_name (abfd, name); | |
869 | if (section == (asection *) NULL) | |
870 | { | |
871 | char *copy; | |
872 | ||
873 | copy = (char *) bfd_alloc (abfd, strlen (name) + 1); | |
874 | strcpy (copy, name); | |
875 | section = bfd_make_section (abfd, copy); | |
876 | } | |
877 | ||
878 | /* Build a reloc pointing to this constructor. */ | |
879 | reloc_chain = | |
880 | (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain)); | |
881 | reloc_chain->relent.sym_ptr_ptr = | |
882 | bfd_get_section (asym)->symbol_ptr_ptr; | |
883 | reloc_chain->relent.address = section->_raw_size; | |
884 | reloc_chain->relent.addend = asym->value; | |
8f46bac8 ILT |
885 | reloc_chain->relent.howto = |
886 | ecoff_backend (abfd)->constructor_reloc; | |
dae31cf5 ILT |
887 | |
888 | /* Set up the constructor section to hold the reloc. */ | |
889 | section->flags = SEC_CONSTRUCTOR; | |
890 | ++section->reloc_count; | |
891 | ||
892 | /* Constructor sections must be rounded to a boundary | |
893 | based on the bitsize. These are not real sections-- | |
894 | they are handled specially by the linker--so the ECOFF | |
895 | 16 byte alignment restriction does not apply. */ | |
8f46bac8 | 896 | bitsize = ecoff_backend (abfd)->constructor_bitsize; |
dae31cf5 ILT |
897 | section->alignment_power = 1; |
898 | while ((1 << section->alignment_power) < bitsize / 8) | |
899 | ++section->alignment_power; | |
900 | ||
901 | reloc_chain->next = section->constructor_chain; | |
902 | section->constructor_chain = reloc_chain; | |
903 | section->_raw_size += bitsize / 8; | |
904 | ||
905 | /* Mark the symbol as a constructor. */ | |
906 | asym->flags |= BSF_CONSTRUCTOR; | |
907 | } | |
908 | break; | |
909 | } | |
910 | } | |
911 | } | |
912 | ||
913 | /* Read an ECOFF symbol table. */ | |
914 | ||
915 | boolean | |
916 | ecoff_slurp_symbol_table (abfd) | |
917 | bfd *abfd; | |
918 | { | |
919 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
920 | const bfd_size_type external_ext_size = backend->external_ext_size; | |
921 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
922 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
923 | = backend->swap_ext_in; | |
924 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
925 | = backend->swap_sym_in; | |
926 | bfd_size_type internal_size; | |
927 | ecoff_symbol_type *internal; | |
928 | ecoff_symbol_type *internal_ptr; | |
929 | asymbol *indirect_ptr; | |
930 | char *eraw_src; | |
931 | char *eraw_end; | |
932 | FDR *fdr_ptr; | |
933 | FDR *fdr_end; | |
934 | ||
935 | /* If we've already read in the symbol table, do nothing. */ | |
936 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
937 | return true; | |
938 | ||
939 | /* Get the symbolic information. */ | |
940 | if (ecoff_slurp_symbolic_info (abfd) == false) | |
941 | return false; | |
942 | if (bfd_get_symcount (abfd) == 0) | |
943 | return true; | |
944 | ||
945 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
946 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
947 | if (internal == NULL) | |
948 | { | |
949 | bfd_error = no_memory; | |
950 | return false; | |
951 | } | |
952 | ||
953 | internal_ptr = internal; | |
954 | indirect_ptr = NULL; | |
955 | eraw_src = (char *) ecoff_data (abfd)->external_ext; | |
956 | eraw_end = (eraw_src | |
957 | + (ecoff_data (abfd)->symbolic_header.iextMax | |
958 | * external_ext_size)); | |
959 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) | |
960 | { | |
961 | EXTR internal_esym; | |
962 | ||
963 | (*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym); | |
964 | internal_ptr->symbol.name = (ecoff_data (abfd)->ssext | |
965 | + internal_esym.asym.iss); | |
966 | ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
967 | &internal_ptr->symbol, 1, &indirect_ptr); | |
48edba81 ILT |
968 | /* The alpha uses a negative ifd field for section symbols. */ |
969 | if (internal_esym.ifd >= 0) | |
970 | internal_ptr->fdr = ecoff_data (abfd)->fdr + internal_esym.ifd; | |
971 | else | |
972 | internal_ptr->fdr = NULL; | |
dae31cf5 ILT |
973 | internal_ptr->local = false; |
974 | internal_ptr->native = (PTR) eraw_src; | |
975 | } | |
976 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
977 | ||
978 | /* The local symbols must be accessed via the fdr's, because the | |
979 | string and aux indices are relative to the fdr information. */ | |
980 | fdr_ptr = ecoff_data (abfd)->fdr; | |
981 | fdr_end = fdr_ptr + ecoff_data (abfd)->symbolic_header.ifdMax; | |
982 | for (; fdr_ptr < fdr_end; fdr_ptr++) | |
983 | { | |
984 | char *lraw_src; | |
985 | char *lraw_end; | |
986 | ||
987 | lraw_src = ((char *) ecoff_data (abfd)->external_sym | |
988 | + fdr_ptr->isymBase * external_sym_size); | |
989 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; | |
990 | for (; | |
991 | lraw_src < lraw_end; | |
992 | lraw_src += external_sym_size, internal_ptr++) | |
993 | { | |
994 | SYMR internal_sym; | |
995 | ||
996 | (*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym); | |
997 | internal_ptr->symbol.name = (ecoff_data (abfd)->ss | |
998 | + fdr_ptr->issBase | |
999 | + internal_sym.iss); | |
1000 | ecoff_set_symbol_info (abfd, &internal_sym, | |
1001 | &internal_ptr->symbol, 0, &indirect_ptr); | |
1002 | internal_ptr->fdr = fdr_ptr; | |
1003 | internal_ptr->local = true; | |
1004 | internal_ptr->native = (PTR) lraw_src; | |
1005 | } | |
1006 | } | |
1007 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1008 | ||
1009 | ecoff_data (abfd)->canonical_symbols = internal; | |
1010 | ||
1011 | return true; | |
1012 | } | |
1013 | ||
1014 | /* Return the amount of space needed for the canonical symbols. */ | |
1015 | ||
1016 | unsigned int | |
1017 | ecoff_get_symtab_upper_bound (abfd) | |
1018 | bfd *abfd; | |
1019 | { | |
1020 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1021 | || bfd_get_symcount (abfd) == 0) | |
1022 | return 0; | |
1023 | ||
1024 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
1025 | } | |
1026 | ||
1027 | /* Get the canonicals symbols. */ | |
1028 | ||
1029 | unsigned int | |
1030 | ecoff_get_symtab (abfd, alocation) | |
1031 | bfd *abfd; | |
1032 | asymbol **alocation; | |
1033 | { | |
1034 | unsigned int counter = 0; | |
1035 | ecoff_symbol_type *symbase; | |
1036 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
1037 | ||
1038 | if (ecoff_slurp_symbol_table (abfd) == false | |
1039 | || bfd_get_symcount (abfd) == 0) | |
1040 | return 0; | |
1041 | ||
1042 | symbase = ecoff_data (abfd)->canonical_symbols; | |
1043 | while (counter < bfd_get_symcount (abfd)) | |
1044 | { | |
1045 | *(location++) = symbase++; | |
1046 | counter++; | |
1047 | } | |
1048 | *location++ = (ecoff_symbol_type *) NULL; | |
1049 | return bfd_get_symcount (abfd); | |
1050 | } | |
1051 | ||
1052 | /* Turn ECOFF type information into a printable string. | |
1053 | ecoff_emit_aggregate and ecoff_type_to_string are from | |
1054 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ | |
1055 | ||
1056 | /* Write aggregate information to a string. */ | |
1057 | ||
1058 | static void | |
1059 | ecoff_emit_aggregate (abfd, string, rndx, isym, which) | |
1060 | bfd *abfd; | |
1061 | char *string; | |
1062 | RNDXR *rndx; | |
1063 | long isym; | |
1064 | CONST char *which; | |
1065 | { | |
1066 | int ifd = rndx->rfd; | |
1067 | int indx = rndx->index; | |
1068 | int sym_base, ss_base; | |
1069 | CONST char *name; | |
1070 | ||
1071 | if (ifd == 0xfff) | |
1072 | ifd = isym; | |
1073 | ||
1074 | sym_base = ecoff_data (abfd)->fdr[ifd].isymBase; | |
1075 | ss_base = ecoff_data (abfd)->fdr[ifd].issBase; | |
1076 | ||
1077 | if (indx == indexNil) | |
1078 | name = "/* no name */"; | |
1079 | else | |
1080 | { | |
1081 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1082 | SYMR sym; | |
1083 | ||
1084 | indx += sym_base; | |
1085 | (*backend->swap_sym_in) (abfd, | |
1086 | ((char *) ecoff_data (abfd)->external_sym | |
1087 | + indx * backend->external_sym_size), | |
1088 | &sym); | |
1089 | name = ecoff_data (abfd)->ss + ss_base + sym.iss; | |
1090 | } | |
1091 | ||
1092 | sprintf (string, | |
1093 | "%s %s { ifd = %d, index = %d }", | |
1094 | which, name, ifd, | |
1095 | indx + ecoff_data (abfd)->symbolic_header.iextMax); | |
1096 | } | |
1097 | ||
1098 | /* Convert the type information to string format. */ | |
1099 | ||
1100 | static char * | |
1101 | ecoff_type_to_string (abfd, aux_ptr, indx, bigendian) | |
1102 | bfd *abfd; | |
1103 | union aux_ext *aux_ptr; | |
1104 | unsigned int indx; | |
1105 | int bigendian; | |
1106 | { | |
1107 | AUXU u; | |
1108 | struct qual { | |
1109 | unsigned int type; | |
1110 | int low_bound; | |
1111 | int high_bound; | |
1112 | int stride; | |
1113 | } qualifiers[7]; | |
1114 | ||
1115 | unsigned int basic_type; | |
1116 | int i; | |
1117 | static char buffer1[1024]; | |
1118 | static char buffer2[1024]; | |
1119 | char *p1 = buffer1; | |
1120 | char *p2 = buffer2; | |
1121 | RNDXR rndx; | |
1122 | ||
1123 | for (i = 0; i < 7; i++) | |
1124 | { | |
1125 | qualifiers[i].low_bound = 0; | |
1126 | qualifiers[i].high_bound = 0; | |
1127 | qualifiers[i].stride = 0; | |
1128 | } | |
1129 | ||
1130 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
1131 | return "-1 (no type)"; | |
1132 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
1133 | ||
1134 | basic_type = u.ti.bt; | |
1135 | qualifiers[0].type = u.ti.tq0; | |
1136 | qualifiers[1].type = u.ti.tq1; | |
1137 | qualifiers[2].type = u.ti.tq2; | |
1138 | qualifiers[3].type = u.ti.tq3; | |
1139 | qualifiers[4].type = u.ti.tq4; | |
1140 | qualifiers[5].type = u.ti.tq5; | |
1141 | qualifiers[6].type = tqNil; | |
1142 | ||
1143 | /* | |
1144 | * Go get the basic type. | |
1145 | */ | |
1146 | switch (basic_type) | |
1147 | { | |
1148 | case btNil: /* undefined */ | |
1149 | strcpy (p1, "nil"); | |
1150 | break; | |
1151 | ||
1152 | case btAdr: /* address - integer same size as pointer */ | |
1153 | strcpy (p1, "address"); | |
1154 | break; | |
1155 | ||
1156 | case btChar: /* character */ | |
1157 | strcpy (p1, "char"); | |
1158 | break; | |
1159 | ||
1160 | case btUChar: /* unsigned character */ | |
1161 | strcpy (p1, "unsigned char"); | |
1162 | break; | |
1163 | ||
1164 | case btShort: /* short */ | |
1165 | strcpy (p1, "short"); | |
1166 | break; | |
1167 | ||
1168 | case btUShort: /* unsigned short */ | |
1169 | strcpy (p1, "unsigned short"); | |
1170 | break; | |
1171 | ||
1172 | case btInt: /* int */ | |
1173 | strcpy (p1, "int"); | |
1174 | break; | |
1175 | ||
1176 | case btUInt: /* unsigned int */ | |
1177 | strcpy (p1, "unsigned int"); | |
1178 | break; | |
1179 | ||
1180 | case btLong: /* long */ | |
1181 | strcpy (p1, "long"); | |
1182 | break; | |
1183 | ||
1184 | case btULong: /* unsigned long */ | |
1185 | strcpy (p1, "unsigned long"); | |
1186 | break; | |
1187 | ||
1188 | case btFloat: /* float (real) */ | |
1189 | strcpy (p1, "float"); | |
1190 | break; | |
1191 | ||
1192 | case btDouble: /* Double (real) */ | |
1193 | strcpy (p1, "double"); | |
1194 | break; | |
1195 | ||
1196 | /* Structures add 1-2 aux words: | |
1197 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
1198 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1199 | ||
1200 | case btStruct: /* Structure (Record) */ | |
1201 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1202 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
1203 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1204 | "struct"); | |
1205 | indx++; /* skip aux words */ | |
1206 | break; | |
1207 | ||
1208 | /* Unions add 1-2 aux words: | |
1209 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1210 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1211 | ||
1212 | case btUnion: /* Union */ | |
1213 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1214 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
1215 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1216 | "union"); | |
1217 | indx++; /* skip aux words */ | |
1218 | break; | |
1219 | ||
1220 | /* Enumerations add 1-2 aux words: | |
1221 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1222 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1223 | ||
1224 | case btEnum: /* Enumeration */ | |
1225 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1226 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
1227 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1228 | "enum"); | |
1229 | indx++; /* skip aux words */ | |
1230 | break; | |
1231 | ||
1232 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1233 | strcpy (p1, "typedef"); | |
1234 | break; | |
1235 | ||
1236 | case btRange: /* subrange of int */ | |
1237 | strcpy (p1, "subrange"); | |
1238 | break; | |
1239 | ||
1240 | case btSet: /* pascal sets */ | |
1241 | strcpy (p1, "set"); | |
1242 | break; | |
1243 | ||
1244 | case btComplex: /* fortran complex */ | |
1245 | strcpy (p1, "complex"); | |
1246 | break; | |
1247 | ||
1248 | case btDComplex: /* fortran double complex */ | |
1249 | strcpy (p1, "double complex"); | |
1250 | break; | |
1251 | ||
1252 | case btIndirect: /* forward or unnamed typedef */ | |
1253 | strcpy (p1, "forward/unamed typedef"); | |
1254 | break; | |
1255 | ||
1256 | case btFixedDec: /* Fixed Decimal */ | |
1257 | strcpy (p1, "fixed decimal"); | |
1258 | break; | |
1259 | ||
1260 | case btFloatDec: /* Float Decimal */ | |
1261 | strcpy (p1, "float decimal"); | |
1262 | break; | |
1263 | ||
1264 | case btString: /* Varying Length Character String */ | |
1265 | strcpy (p1, "string"); | |
1266 | break; | |
1267 | ||
1268 | case btBit: /* Aligned Bit String */ | |
1269 | strcpy (p1, "bit"); | |
1270 | break; | |
1271 | ||
1272 | case btPicture: /* Picture */ | |
1273 | strcpy (p1, "picture"); | |
1274 | break; | |
1275 | ||
1276 | case btVoid: /* Void */ | |
1277 | strcpy (p1, "void"); | |
1278 | break; | |
1279 | ||
1280 | default: | |
1281 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
1282 | break; | |
1283 | } | |
1284 | ||
1285 | p1 += strlen (buffer1); | |
1286 | ||
1287 | /* | |
1288 | * If this is a bitfield, get the bitsize. | |
1289 | */ | |
1290 | if (u.ti.fBitfield) | |
1291 | { | |
1292 | int bitsize; | |
1293 | ||
1294 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1295 | sprintf (p1, " : %d", bitsize); | |
1296 | p1 += strlen (buffer1); | |
1297 | } | |
1298 | ||
1299 | ||
1300 | /* | |
1301 | * Deal with any qualifiers. | |
1302 | */ | |
1303 | if (qualifiers[0].type != tqNil) | |
1304 | { | |
1305 | /* | |
1306 | * Snarf up any array bounds in the correct order. Arrays | |
1307 | * store 5 successive words in the aux. table: | |
1308 | * word 0 RNDXR to type of the bounds (ie, int) | |
1309 | * word 1 Current file descriptor index | |
1310 | * word 2 low bound | |
1311 | * word 3 high bound (or -1 if []) | |
1312 | * word 4 stride size in bits | |
1313 | */ | |
1314 | for (i = 0; i < 7; i++) | |
1315 | { | |
1316 | if (qualifiers[i].type == tqArray) | |
1317 | { | |
1318 | qualifiers[i].low_bound = | |
1319 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1320 | qualifiers[i].high_bound = | |
1321 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1322 | qualifiers[i].stride = | |
1323 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1324 | indx += 5; | |
1325 | } | |
1326 | } | |
1327 | ||
1328 | /* | |
1329 | * Now print out the qualifiers. | |
1330 | */ | |
1331 | for (i = 0; i < 6; i++) | |
1332 | { | |
1333 | switch (qualifiers[i].type) | |
1334 | { | |
1335 | case tqNil: | |
1336 | case tqMax: | |
1337 | break; | |
1338 | ||
1339 | case tqPtr: | |
1340 | strcpy (p2, "ptr to "); | |
1341 | p2 += sizeof ("ptr to ")-1; | |
1342 | break; | |
1343 | ||
1344 | case tqVol: | |
1345 | strcpy (p2, "volatile "); | |
1346 | p2 += sizeof ("volatile ")-1; | |
1347 | break; | |
1348 | ||
1349 | case tqFar: | |
1350 | strcpy (p2, "far "); | |
1351 | p2 += sizeof ("far ")-1; | |
1352 | break; | |
1353 | ||
1354 | case tqProc: | |
1355 | strcpy (p2, "func. ret. "); | |
1356 | p2 += sizeof ("func. ret. "); | |
1357 | break; | |
1358 | ||
1359 | case tqArray: | |
1360 | { | |
1361 | int first_array = i; | |
1362 | int j; | |
1363 | ||
1364 | /* Print array bounds reversed (ie, in the order the C | |
1365 | programmer writes them). C is such a fun language.... */ | |
1366 | ||
1367 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1368 | i++; | |
1369 | ||
1370 | for (j = i; j >= first_array; j--) | |
1371 | { | |
1372 | strcpy (p2, "array ["); | |
1373 | p2 += sizeof ("array [")-1; | |
1374 | if (qualifiers[j].low_bound != 0) | |
1375 | sprintf (p2, | |
1376 | "%ld:%ld {%ld bits}", | |
1377 | (long) qualifiers[j].low_bound, | |
1378 | (long) qualifiers[j].high_bound, | |
1379 | (long) qualifiers[j].stride); | |
1380 | ||
1381 | else if (qualifiers[j].high_bound != -1) | |
1382 | sprintf (p2, | |
1383 | "%ld {%ld bits}", | |
1384 | (long) (qualifiers[j].high_bound + 1), | |
1385 | (long) (qualifiers[j].stride)); | |
1386 | ||
1387 | else | |
1388 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1389 | ||
1390 | p2 += strlen (p2); | |
1391 | strcpy (p2, "] of "); | |
1392 | p2 += sizeof ("] of ")-1; | |
1393 | } | |
1394 | } | |
1395 | break; | |
1396 | } | |
1397 | } | |
1398 | } | |
1399 | ||
1400 | strcpy (p2, buffer1); | |
1401 | return buffer2; | |
1402 | } | |
1403 | ||
1404 | /* Return information about ECOFF symbol SYMBOL in RET. */ | |
1405 | ||
1406 | void | |
1407 | ecoff_get_symbol_info (abfd, symbol, ret) | |
1408 | bfd *abfd; /* Ignored. */ | |
1409 | asymbol *symbol; | |
1410 | symbol_info *ret; | |
1411 | { | |
1412 | bfd_symbol_info (symbol, ret); | |
1413 | } | |
1414 | ||
1415 | /* Print information about an ECOFF symbol. */ | |
1416 | ||
1417 | void | |
1418 | ecoff_print_symbol (abfd, filep, symbol, how) | |
1419 | bfd *abfd; | |
1420 | PTR filep; | |
1421 | asymbol *symbol; | |
1422 | bfd_print_symbol_type how; | |
1423 | { | |
1424 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1425 | FILE *file = (FILE *)filep; | |
1426 | ||
1427 | switch (how) | |
1428 | { | |
1429 | case bfd_print_symbol_name: | |
1430 | fprintf (file, "%s", symbol->name); | |
1431 | break; | |
1432 | case bfd_print_symbol_more: | |
1433 | if (ecoffsymbol (symbol)->local) | |
1434 | { | |
1435 | SYMR ecoff_sym; | |
1436 | ||
1437 | (*backend->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, | |
1438 | &ecoff_sym); | |
1439 | fprintf (file, "ecoff local "); | |
1440 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); | |
1441 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, | |
1442 | (unsigned) ecoff_sym.sc); | |
1443 | } | |
1444 | else | |
1445 | { | |
1446 | EXTR ecoff_ext; | |
1447 | ||
1448 | (*backend->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1449 | &ecoff_ext); | |
1450 | fprintf (file, "ecoff extern "); | |
1451 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1452 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, | |
1453 | (unsigned) ecoff_ext.asym.sc); | |
1454 | } | |
1455 | break; | |
1456 | case bfd_print_symbol_all: | |
1457 | /* Print out the symbols in a reasonable way */ | |
1458 | { | |
1459 | char type; | |
1460 | int pos; | |
1461 | EXTR ecoff_ext; | |
1462 | char jmptbl; | |
1463 | char cobol_main; | |
1464 | char weakext; | |
1465 | ||
1466 | if (ecoffsymbol (symbol)->local) | |
1467 | { | |
1468 | (*backend->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, | |
1469 | &ecoff_ext.asym); | |
1470 | type = 'l'; | |
1471 | pos = ((((char *) ecoffsymbol (symbol)->native | |
1472 | - (char *) ecoff_data (abfd)->external_sym) | |
1473 | / backend->external_sym_size) | |
1474 | + ecoff_data (abfd)->symbolic_header.iextMax); | |
1475 | jmptbl = ' '; | |
1476 | cobol_main = ' '; | |
1477 | weakext = ' '; | |
1478 | } | |
1479 | else | |
1480 | { | |
1481 | (*backend->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1482 | &ecoff_ext); | |
1483 | type = 'e'; | |
1484 | pos = (((char *) ecoffsymbol (symbol)->native | |
1485 | - (char *) ecoff_data (abfd)->external_ext) | |
1486 | / backend->external_ext_size); | |
1487 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; | |
1488 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1489 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1490 | } | |
1491 | ||
1492 | fprintf (file, "[%3d] %c ", | |
1493 | pos, type); | |
1494 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1495 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", | |
1496 | (unsigned) ecoff_ext.asym.st, | |
1497 | (unsigned) ecoff_ext.asym.sc, | |
1498 | (unsigned) ecoff_ext.asym.index, | |
1499 | jmptbl, cobol_main, weakext, | |
1500 | symbol->name); | |
1501 | ||
1502 | if (ecoffsymbol (symbol)->fdr != NULL | |
1503 | && ecoff_ext.asym.index != indexNil) | |
1504 | { | |
1505 | unsigned int indx; | |
1506 | int bigendian; | |
1507 | bfd_size_type sym_base; | |
1508 | union aux_ext *aux_base; | |
1509 | ||
1510 | indx = ecoff_ext.asym.index; | |
1511 | ||
1512 | /* sym_base is used to map the fdr relative indices which | |
1513 | appear in the file to the position number which we are | |
1514 | using. */ | |
1515 | sym_base = ecoffsymbol (symbol)->fdr->isymBase; | |
1516 | if (ecoffsymbol (symbol)->local) | |
1517 | sym_base += ecoff_data (abfd)->symbolic_header.iextMax; | |
1518 | ||
1519 | /* aux_base is the start of the aux entries for this file; | |
1520 | asym.index is an offset from this. */ | |
1521 | aux_base = (ecoff_data (abfd)->external_aux | |
1522 | + ecoffsymbol (symbol)->fdr->iauxBase); | |
1523 | ||
1524 | /* The aux entries are stored in host byte order; the | |
1525 | order is indicated by a bit in the fdr. */ | |
1526 | bigendian = ecoffsymbol (symbol)->fdr->fBigendian; | |
1527 | ||
1528 | /* This switch is basically from gcc/mips-tdump.c */ | |
1529 | switch (ecoff_ext.asym.st) | |
1530 | { | |
1531 | case stNil: | |
1532 | case stLabel: | |
1533 | break; | |
1534 | ||
1535 | case stFile: | |
1536 | case stBlock: | |
1537 | fprintf (file, "\n End+1 symbol: %ld", | |
1538 | (long) (indx + sym_base)); | |
1539 | break; | |
1540 | ||
1541 | case stEnd: | |
1542 | if (ecoff_ext.asym.sc == scText | |
1543 | || ecoff_ext.asym.sc == scInfo) | |
1544 | fprintf (file, "\n First symbol: %ld", | |
1545 | (long) (indx + sym_base)); | |
1546 | else | |
1547 | fprintf (file, "\n First symbol: %ld", | |
1548 | (long) (AUX_GET_ISYM (bigendian, | |
1549 | &aux_base[ecoff_ext.asym.index]) | |
1550 | + sym_base)); | |
1551 | break; | |
1552 | ||
1553 | case stProc: | |
1554 | case stStaticProc: | |
1555 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1556 | ; | |
1557 | else if (ecoffsymbol (symbol)->local) | |
1558 | fprintf (file, "\n End+1 symbol: %-7ld Type: %s", | |
1559 | (long) (AUX_GET_ISYM (bigendian, | |
1560 | &aux_base[ecoff_ext.asym.index]) | |
1561 | + sym_base), | |
1562 | ecoff_type_to_string (abfd, aux_base, indx + 1, | |
1563 | bigendian)); | |
1564 | else | |
1565 | fprintf (file, "\n Local symbol: %d", | |
1566 | (indx | |
1567 | + sym_base | |
1568 | + ecoff_data (abfd)->symbolic_header.iextMax)); | |
1569 | break; | |
1570 | ||
1571 | default: | |
1572 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1573 | fprintf (file, "\n Type: %s", | |
1574 | ecoff_type_to_string (abfd, aux_base, indx, | |
1575 | bigendian)); | |
1576 | break; | |
1577 | } | |
1578 | } | |
1579 | } | |
1580 | break; | |
1581 | } | |
1582 | } | |
1583 | \f | |
dae31cf5 ILT |
1584 | /* Read in the relocs for a section. */ |
1585 | ||
1586 | static boolean | |
1587 | ecoff_slurp_reloc_table (abfd, section, symbols) | |
1588 | bfd *abfd; | |
1589 | asection *section; | |
1590 | asymbol **symbols; | |
1591 | { | |
1592 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1593 | arelent *internal_relocs; | |
1594 | bfd_size_type external_reloc_size; | |
1595 | bfd_size_type external_relocs_size; | |
1596 | char *external_relocs; | |
1597 | arelent *rptr; | |
1598 | unsigned int i; | |
1599 | ||
1600 | if (section->relocation != (arelent *) NULL | |
1601 | || section->reloc_count == 0 | |
1602 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1603 | return true; | |
1604 | ||
1605 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1606 | return false; | |
1607 | ||
1608 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1609 | (sizeof (arelent) | |
1610 | * section->reloc_count)); | |
1611 | external_reloc_size = backend->external_reloc_size; | |
1612 | external_relocs_size = external_reloc_size * section->reloc_count; | |
1613 | external_relocs = (char *) bfd_alloc (abfd, external_relocs_size); | |
1614 | if (internal_relocs == (arelent *) NULL | |
1615 | || external_relocs == (char *) NULL) | |
1616 | { | |
1617 | bfd_error = no_memory; | |
1618 | return false; | |
1619 | } | |
1620 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1621 | return false; | |
1622 | if (bfd_read (external_relocs, 1, external_relocs_size, abfd) | |
1623 | != external_relocs_size) | |
1624 | { | |
1625 | bfd_error = system_call_error; | |
1626 | return false; | |
1627 | } | |
1628 | ||
1629 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1630 | { | |
1631 | struct internal_reloc intern; | |
1632 | ||
1633 | (*backend->swap_reloc_in) (abfd, | |
1634 | external_relocs + i * external_reloc_size, | |
1635 | &intern); | |
1636 | ||
dae31cf5 ILT |
1637 | if (intern.r_extern) |
1638 | { | |
1639 | /* r_symndx is an index into the external symbols. */ | |
1640 | BFD_ASSERT (intern.r_symndx >= 0 | |
1641 | && (intern.r_symndx | |
1642 | < ecoff_data (abfd)->symbolic_header.iextMax)); | |
1643 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; | |
1644 | rptr->addend = 0; | |
1645 | } | |
e544ed4f ILT |
1646 | else if (intern.r_symndx == RELOC_SECTION_NONE |
1647 | || intern.r_symndx == RELOC_SECTION_ABS) | |
1648 | { | |
1649 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1650 | rptr->addend = 0; | |
1651 | } | |
dae31cf5 ILT |
1652 | else |
1653 | { | |
1654 | CONST char *sec_name; | |
1655 | asection *sec; | |
1656 | ||
1657 | /* r_symndx is a section key. */ | |
1658 | switch (intern.r_symndx) | |
1659 | { | |
1660 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1661 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1662 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1663 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1664 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1665 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1666 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1667 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1668 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
8f46bac8 ILT |
1669 | case RELOC_SECTION_XDATA: sec_name = ".xdata"; break; |
1670 | case RELOC_SECTION_PDATA: sec_name = ".pdata"; break; | |
1671 | case RELOC_SECTION_LITA: sec_name = ".lita"; break; | |
dae31cf5 ILT |
1672 | default: abort (); |
1673 | } | |
1674 | ||
1675 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1676 | if (sec == (asection *) NULL) | |
e544ed4f | 1677 | abort (); |
dae31cf5 ILT |
1678 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; |
1679 | ||
1680 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
dae31cf5 ILT |
1681 | } |
1682 | ||
1683 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
dae31cf5 | 1684 | |
8f46bac8 ILT |
1685 | /* Let the backend select the howto field and do any other |
1686 | required processing. */ | |
1687 | (*backend->finish_reloc) (abfd, &intern, rptr); | |
dae31cf5 ILT |
1688 | } |
1689 | ||
1690 | bfd_release (abfd, external_relocs); | |
1691 | ||
1692 | section->relocation = internal_relocs; | |
1693 | ||
1694 | return true; | |
1695 | } | |
1696 | ||
1697 | /* Get a canonical list of relocs. */ | |
1698 | ||
1699 | unsigned int | |
1700 | ecoff_canonicalize_reloc (abfd, section, relptr, symbols) | |
1701 | bfd *abfd; | |
1702 | asection *section; | |
1703 | arelent **relptr; | |
1704 | asymbol **symbols; | |
1705 | { | |
1706 | unsigned int count; | |
1707 | ||
1708 | if (section->flags & SEC_CONSTRUCTOR) | |
1709 | { | |
1710 | arelent_chain *chain; | |
1711 | ||
1712 | /* This section has relocs made up by us, not the file, so take | |
1713 | them out of their chain and place them into the data area | |
1714 | provided. */ | |
1715 | for (count = 0, chain = section->constructor_chain; | |
1716 | count < section->reloc_count; | |
1717 | count++, chain = chain->next) | |
1718 | *relptr++ = &chain->relent; | |
1719 | } | |
1720 | else | |
1721 | { | |
1722 | arelent *tblptr; | |
1723 | ||
1724 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
1725 | return 0; | |
1726 | ||
1727 | tblptr = section->relocation; | |
1728 | if (tblptr == (arelent *) NULL) | |
1729 | return 0; | |
1730 | ||
1731 | for (count = 0; count < section->reloc_count; count++) | |
1732 | *relptr++ = tblptr++; | |
1733 | } | |
1734 | ||
1735 | *relptr = (arelent *) NULL; | |
1736 | ||
1737 | return section->reloc_count; | |
1738 | } | |
dae31cf5 ILT |
1739 | \f |
1740 | /* Provided a BFD, a section and an offset into the section, calculate | |
1741 | and return the name of the source file and the line nearest to the | |
1742 | wanted location. */ | |
1743 | ||
1744 | boolean | |
1745 | ecoff_find_nearest_line (abfd, | |
1746 | section, | |
1747 | ignore_symbols, | |
1748 | offset, | |
1749 | filename_ptr, | |
1750 | functionname_ptr, | |
1751 | retline_ptr) | |
1752 | bfd *abfd; | |
1753 | asection *section; | |
1754 | asymbol **ignore_symbols; | |
1755 | bfd_vma offset; | |
1756 | CONST char **filename_ptr; | |
1757 | CONST char **functionname_ptr; | |
1758 | unsigned int *retline_ptr; | |
1759 | { | |
1760 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1761 | FDR *fdr_ptr; | |
1762 | FDR *fdr_start; | |
1763 | FDR *fdr_end; | |
1764 | FDR *fdr_hold; | |
1765 | bfd_size_type external_pdr_size; | |
1766 | char *pdr_ptr; | |
1767 | char *pdr_end; | |
1768 | PDR pdr; | |
1769 | unsigned char *line_ptr; | |
1770 | unsigned char *line_end; | |
1771 | int lineno; | |
1772 | ||
1773 | /* If we're not in the .text section, we don't have any line | |
1774 | numbers. */ | |
1775 | if (strcmp (section->name, _TEXT) != 0 | |
1776 | || offset < ecoff_data (abfd)->text_start | |
1777 | || offset >= ecoff_data (abfd)->text_end) | |
1778 | return false; | |
1779 | ||
1780 | /* Make sure we have the FDR's. */ | |
1781 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1782 | || bfd_get_symcount (abfd) == 0) | |
1783 | return false; | |
1784 | ||
1785 | /* Each file descriptor (FDR) has a memory address. Here we track | |
1786 | down which FDR we want. The FDR's are stored in increasing | |
1787 | memory order. If speed is ever important, this can become a | |
1788 | binary search. We must ignore FDR's with no PDR entries; they | |
1789 | will have the adr of the FDR before or after them. */ | |
1790 | fdr_start = ecoff_data (abfd)->fdr; | |
1791 | fdr_end = fdr_start + ecoff_data (abfd)->symbolic_header.ifdMax; | |
1792 | fdr_hold = (FDR *) NULL; | |
1793 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
1794 | { | |
1795 | if (fdr_ptr->cpd == 0) | |
1796 | continue; | |
1797 | if (offset < fdr_ptr->adr) | |
1798 | break; | |
1799 | fdr_hold = fdr_ptr; | |
1800 | } | |
1801 | if (fdr_hold == (FDR *) NULL) | |
1802 | return false; | |
1803 | fdr_ptr = fdr_hold; | |
1804 | ||
1805 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
1806 | have an address, which is relative to the FDR address, and are | |
1807 | also stored in increasing memory order. */ | |
1808 | offset -= fdr_ptr->adr; | |
1809 | external_pdr_size = backend->external_pdr_size; | |
1810 | pdr_ptr = ((char *) ecoff_data (abfd)->external_pdr | |
1811 | + fdr_ptr->ipdFirst * external_pdr_size); | |
1812 | pdr_end = pdr_ptr + fdr_ptr->cpd * external_pdr_size; | |
1813 | (*backend->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); | |
1814 | ||
1815 | /* The address of the first PDR is an offset which applies to the | |
1816 | addresses of all the PDR's. */ | |
1817 | offset += pdr.adr; | |
1818 | ||
1819 | for (pdr_ptr += external_pdr_size; | |
1820 | pdr_ptr < pdr_end; | |
1821 | pdr_ptr += external_pdr_size) | |
1822 | { | |
1823 | (*backend->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); | |
1824 | if (offset < pdr.adr) | |
1825 | break; | |
1826 | } | |
1827 | ||
1828 | /* Now we can look for the actual line number. The line numbers are | |
1829 | stored in a very funky format, which I won't try to describe. | |
1830 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
1831 | we want; we need this to compute line_end. */ | |
1832 | line_end = ecoff_data (abfd)->line; | |
1833 | if (pdr_ptr == pdr_end) | |
1834 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
1835 | else | |
1836 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
1837 | ||
1838 | /* Now change pdr and pdr_ptr to the one we want. */ | |
1839 | pdr_ptr -= external_pdr_size; | |
1840 | (*backend->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); | |
1841 | ||
1842 | offset -= pdr.adr; | |
1843 | lineno = pdr.lnLow; | |
1844 | line_ptr = (ecoff_data (abfd)->line | |
1845 | + fdr_ptr->cbLineOffset | |
1846 | + pdr.cbLineOffset); | |
1847 | while (line_ptr < line_end) | |
1848 | { | |
1849 | int delta; | |
1850 | int count; | |
1851 | ||
1852 | delta = *line_ptr >> 4; | |
1853 | if (delta >= 0x8) | |
1854 | delta -= 0x10; | |
1855 | count = (*line_ptr & 0xf) + 1; | |
1856 | ++line_ptr; | |
1857 | if (delta == -8) | |
1858 | { | |
1859 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
1860 | if (delta >= 0x8000) | |
1861 | delta -= 0x10000; | |
1862 | line_ptr += 2; | |
1863 | } | |
1864 | lineno += delta; | |
1865 | if (offset < count * 4) | |
1866 | break; | |
1867 | offset -= count * 4; | |
1868 | } | |
1869 | ||
1870 | /* If fdr_ptr->rss is -1, then this file does not have full symbols, | |
1871 | at least according to gdb/mipsread.c. */ | |
1872 | if (fdr_ptr->rss == -1) | |
1873 | { | |
1874 | *filename_ptr = NULL; | |
1875 | if (pdr.isym == -1) | |
1876 | *functionname_ptr = NULL; | |
1877 | else | |
1878 | { | |
1879 | EXTR proc_ext; | |
1880 | ||
1881 | (*backend->swap_ext_in) (abfd, | |
1882 | ((char *) ecoff_data (abfd)->external_ext | |
1883 | + pdr.isym * backend->external_ext_size), | |
1884 | &proc_ext); | |
1885 | *functionname_ptr = ecoff_data (abfd)->ssext + proc_ext.asym.iss; | |
1886 | } | |
1887 | } | |
1888 | else | |
1889 | { | |
1890 | SYMR proc_sym; | |
1891 | ||
1892 | *filename_ptr = ecoff_data (abfd)->ss + fdr_ptr->issBase + fdr_ptr->rss; | |
1893 | (*backend->swap_sym_in) (abfd, | |
1894 | ((char *) ecoff_data (abfd)->external_sym | |
1895 | + ((fdr_ptr->isymBase + pdr.isym) | |
1896 | * backend->external_sym_size)), | |
1897 | &proc_sym); | |
1898 | *functionname_ptr = (ecoff_data (abfd)->ss | |
1899 | + fdr_ptr->issBase | |
1900 | + proc_sym.iss); | |
1901 | } | |
1902 | if (lineno == ilineNil) | |
1903 | lineno = 0; | |
1904 | *retline_ptr = lineno; | |
1905 | return true; | |
1906 | } | |
1907 | \f | |
1908 | /* We can't use the generic linking routines for ECOFF, because we | |
1909 | have to handle all the debugging information. The generic link | |
1910 | routine just works out the section contents and attaches a list of | |
1911 | symbols. | |
1912 | ||
1913 | We link by looping over all the seclets. We make two passes. On | |
1914 | the first we set the actual section contents and determine the size | |
1915 | of the debugging information. On the second we accumulate the | |
1916 | debugging information and write it out. | |
1917 | ||
1918 | This currently always accumulates the debugging information, which | |
1919 | is incorrect, because it ignores the -s and -S options of the | |
1920 | linker. The linker needs to be modified to give us that | |
1921 | information in a more useful format (currently it just provides a | |
1922 | list of symbols which should appear in the output file). */ | |
1923 | ||
1924 | /* Clear the output_has_begun flag for all the input BFD's. We use it | |
1925 | to avoid linking in the debugging information for a BFD more than | |
1926 | once. */ | |
1927 | ||
1928 | static void | |
1929 | ecoff_clear_output_flags (abfd) | |
1930 | bfd *abfd; | |
1931 | { | |
1932 | register asection *o; | |
1933 | register bfd_seclet_type *p; | |
1934 | ||
1935 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
1936 | for (p = o->seclets_head; | |
1937 | p != (bfd_seclet_type *) NULL; | |
1938 | p = p->next) | |
1939 | if (p->type == bfd_indirect_seclet) | |
1940 | p->u.indirect.section->owner->output_has_begun = false; | |
1941 | } | |
1942 | ||
1943 | /* Handle an indirect seclet on the first pass. Set the contents of | |
1944 | the output section, and accumulate the debugging information if | |
1945 | any. */ | |
1946 | ||
1947 | static boolean | |
1948 | ecoff_rel (output_bfd, seclet, output_section, data, relocateable) | |
1949 | bfd *output_bfd; | |
1950 | bfd_seclet_type *seclet; | |
1951 | asection *output_section; | |
1952 | PTR data; | |
1953 | boolean relocateable; | |
1954 | { | |
1955 | bfd *input_bfd; | |
1956 | HDRR *output_symhdr; | |
1957 | HDRR *input_symhdr; | |
1958 | ||
1959 | if ((output_section->flags & SEC_HAS_CONTENTS) | |
1960 | && !(output_section->flags & SEC_NEVER_LOAD) | |
1961 | && (output_section->flags & SEC_LOAD) | |
1962 | && seclet->size) | |
1963 | { | |
1964 | data = (PTR) bfd_get_relocated_section_contents (output_bfd, | |
1965 | seclet, | |
1966 | data, | |
1967 | relocateable); | |
1968 | if (bfd_set_section_contents (output_bfd, | |
1969 | output_section, | |
1970 | data, | |
1971 | seclet->offset, | |
1972 | seclet->size) | |
1973 | == false) | |
1974 | { | |
1975 | abort(); | |
1976 | } | |
1977 | } | |
1978 | ||
1979 | input_bfd = seclet->u.indirect.section->owner; | |
1980 | ||
1981 | /* We want to figure out how much space will be required to | |
1982 | incorporate all the debugging information from input_bfd. We use | |
1983 | the output_has_begun field to avoid adding it in more than once. | |
1984 | The actual incorporation is done in the second pass, in | |
1985 | ecoff_get_debug. The code has to parallel that code in its | |
1986 | manipulations of output_symhdr. */ | |
1987 | ||
1988 | if (input_bfd->output_has_begun) | |
1989 | return true; | |
1990 | input_bfd->output_has_begun = true; | |
1991 | ||
1992 | output_symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
1993 | ||
1994 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
1995 | { | |
1996 | asymbol **symbols; | |
1997 | asymbol **sym_ptr; | |
1998 | asymbol **sym_end; | |
1999 | ||
2000 | /* We just accumulate local symbols from a non-ECOFF BFD. The | |
2001 | external symbols are handled separately. */ | |
2002 | ||
2003 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
2004 | get_symtab_upper_bound (input_bfd)); | |
2005 | if (symbols == (asymbol **) NULL) | |
2006 | { | |
2007 | bfd_error = no_memory; | |
2008 | return false; | |
2009 | } | |
2010 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2011 | ||
2012 | for (sym_ptr = symbols; sym_ptr < sym_end; sym_ptr++) | |
2013 | { | |
2014 | size_t len; | |
2015 | ||
2016 | len = strlen ((*sym_ptr)->name); | |
2017 | if (((*sym_ptr)->flags & BSF_EXPORT) == 0) | |
2018 | { | |
2019 | ++output_symhdr->isymMax; | |
2020 | output_symhdr->issMax += len + 1; | |
2021 | } | |
2022 | } | |
2023 | ||
2024 | bfd_release (output_bfd, (PTR) symbols); | |
2025 | ||
2026 | ++output_symhdr->ifdMax; | |
2027 | ||
2028 | return true; | |
2029 | } | |
2030 | ||
2031 | /* We simply add in the information from another ECOFF BFD. First | |
2032 | we make sure we have the symbolic information. */ | |
2033 | if (ecoff_slurp_symbol_table (input_bfd) == false) | |
2034 | return false; | |
2035 | if (bfd_get_symcount (input_bfd) == 0) | |
2036 | return true; | |
2037 | ||
2038 | input_symhdr = &ecoff_data (input_bfd)->symbolic_header; | |
2039 | ||
2040 | /* Figure out how much information we are going to be putting in. | |
2041 | The external symbols are handled separately. */ | |
2042 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2043 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2044 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2045 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2046 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2047 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2048 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2049 | output_symhdr->issMax += input_symhdr->issMax; | |
2050 | output_symhdr->ifdMax += input_symhdr->ifdMax; | |
2051 | ||
2052 | /* The RFD's are special, since we create them if needed. */ | |
2053 | if (input_symhdr->crfd > 0) | |
2054 | output_symhdr->crfd += input_symhdr->crfd; | |
2055 | else | |
2056 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2057 | ||
2058 | return true; | |
2059 | } | |
2060 | ||
2061 | /* Handle an arbitrary seclet on the first pass. */ | |
2062 | ||
2063 | static boolean | |
2064 | ecoff_dump_seclet (abfd, seclet, section, data, relocateable) | |
2065 | bfd *abfd; | |
2066 | bfd_seclet_type *seclet; | |
2067 | asection *section; | |
2068 | PTR data; | |
2069 | boolean relocateable; | |
2070 | { | |
2071 | switch (seclet->type) | |
2072 | { | |
2073 | case bfd_indirect_seclet: | |
2074 | /* The contents of this section come from another one somewhere | |
2075 | else. */ | |
2076 | return ecoff_rel (abfd, seclet, section, data, relocateable); | |
2077 | ||
2078 | case bfd_fill_seclet: | |
2079 | /* Fill in the section with fill.value. This is used to pad out | |
2080 | sections, but we must avoid padding the .bss section. */ | |
2081 | if ((section->flags & SEC_HAS_CONTENTS) == 0) | |
2082 | { | |
2083 | if (seclet->u.fill.value != 0) | |
2084 | abort (); | |
2085 | } | |
2086 | else | |
2087 | { | |
2088 | char *d = (char *) bfd_alloc (abfd, seclet->size); | |
2089 | unsigned int i; | |
2090 | boolean ret; | |
2091 | ||
2092 | for (i = 0; i < seclet->size; i+=2) | |
2093 | d[i] = seclet->u.fill.value >> 8; | |
2094 | for (i = 1; i < seclet->size; i+=2) | |
2095 | d[i] = seclet->u.fill.value; | |
2096 | ret = bfd_set_section_contents (abfd, section, d, seclet->offset, | |
2097 | seclet->size); | |
2098 | bfd_release (abfd, (PTR) d); | |
2099 | return ret; | |
2100 | } | |
2101 | break; | |
2102 | ||
2103 | default: | |
2104 | abort(); | |
2105 | } | |
2106 | ||
2107 | return true; | |
2108 | } | |
2109 | ||
2110 | /* Add a string to the debugging information we are accumulating for a | |
2111 | file. Return the offset from the fdr string base or from the | |
2112 | external string base. */ | |
2113 | ||
2114 | static long | |
2115 | ecoff_add_string (output_bfd, fdr, string, external) | |
2116 | bfd *output_bfd; | |
2117 | FDR *fdr; | |
2118 | CONST char *string; | |
2119 | boolean external; | |
2120 | { | |
2121 | HDRR *symhdr; | |
2122 | size_t len; | |
2123 | long ret; | |
2124 | ||
2125 | symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2126 | len = strlen (string); | |
2127 | if (external) | |
2128 | { | |
2129 | strcpy (ecoff_data (output_bfd)->ssext + symhdr->issExtMax, string); | |
2130 | ret = symhdr->issExtMax; | |
2131 | symhdr->issExtMax += len + 1; | |
2132 | } | |
2133 | else | |
2134 | { | |
2135 | strcpy (ecoff_data (output_bfd)->ss + symhdr->issMax, string); | |
2136 | ret = fdr->cbSs; | |
2137 | symhdr->issMax += len + 1; | |
2138 | fdr->cbSs += len + 1; | |
2139 | } | |
2140 | return ret; | |
2141 | } | |
2142 | ||
2143 | /* Accumulate the debugging information from an input section. */ | |
2144 | ||
2145 | static boolean | |
2146 | ecoff_get_debug (output_bfd, seclet, section, relocateable) | |
2147 | bfd *output_bfd; | |
2148 | bfd_seclet_type *seclet; | |
2149 | asection *section; | |
2150 | boolean relocateable; | |
2151 | { | |
2152 | const struct ecoff_backend_data * const backend = ecoff_backend (output_bfd); | |
2153 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
2154 | const bfd_size_type external_pdr_size = backend->external_pdr_size; | |
2155 | const bfd_size_type external_fdr_size = backend->external_fdr_size; | |
2156 | const bfd_size_type external_rfd_size = backend->external_rfd_size; | |
2157 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
2158 | = backend->swap_sym_in; | |
2159 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) | |
2160 | = backend->swap_sym_out; | |
2161 | void (* const swap_pdr_in) PARAMS ((bfd *, PTR, PDR *)) | |
2162 | = backend->swap_pdr_in; | |
2163 | void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR)) | |
2164 | = backend->swap_fdr_out; | |
2165 | void (* const swap_rfd_out) PARAMS ((bfd *, const RFDT *, PTR)) | |
2166 | = backend->swap_rfd_out; | |
2167 | bfd *input_bfd; | |
2168 | HDRR *output_symhdr; | |
2169 | HDRR *input_symhdr; | |
2170 | ecoff_data_type *output_ecoff; | |
2171 | ecoff_data_type *input_ecoff; | |
2172 | unsigned int count; | |
2173 | char *sym_out; | |
2174 | ecoff_symbol_type *esym_ptr; | |
2175 | ecoff_symbol_type *esym_end; | |
2176 | FDR *fdr_ptr; | |
2177 | FDR *fdr_end; | |
2178 | char *fdr_out; | |
2179 | ||
2180 | input_bfd = seclet->u.indirect.section->owner; | |
2181 | ||
2182 | /* Don't get the information more than once. */ | |
2183 | if (input_bfd->output_has_begun) | |
2184 | return true; | |
2185 | input_bfd->output_has_begun = true; | |
2186 | ||
2187 | output_ecoff = ecoff_data (output_bfd); | |
2188 | output_symhdr = &output_ecoff->symbolic_header; | |
2189 | ||
2190 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2191 | { | |
2192 | FDR fdr; | |
2193 | asymbol **symbols; | |
2194 | asymbol **sym_ptr; | |
2195 | asymbol **sym_end; | |
2196 | ||
2197 | /* This is not an ECOFF BFD. Just gather the symbols. */ | |
2198 | ||
2199 | memset (&fdr, 0, sizeof fdr); | |
2200 | ||
2201 | fdr.adr = bfd_get_section_vma (output_bfd, section) + seclet->offset; | |
2202 | fdr.issBase = output_symhdr->issMax; | |
2203 | fdr.cbSs = 0; | |
2204 | fdr.rss = ecoff_add_string (output_bfd, | |
2205 | &fdr, | |
2206 | bfd_get_filename (input_bfd), | |
2207 | false); | |
2208 | fdr.isymBase = output_symhdr->isymMax; | |
2209 | ||
2210 | /* Get the local symbols from the input BFD. */ | |
2211 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
2212 | get_symtab_upper_bound (input_bfd)); | |
2213 | if (symbols == (asymbol **) NULL) | |
2214 | { | |
2215 | bfd_error = no_memory; | |
2216 | return false; | |
2217 | } | |
2218 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2219 | ||
2220 | /* Handle the local symbols. Any external symbols are handled | |
2221 | separately. */ | |
2222 | fdr.csym = 0; | |
2223 | for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) | |
2224 | { | |
2225 | SYMR internal_sym; | |
2226 | ||
2227 | if (((*sym_ptr)->flags & BSF_EXPORT) != 0) | |
2228 | continue; | |
2229 | memset (&internal_sym, 0, sizeof internal_sym); | |
2230 | internal_sym.iss = ecoff_add_string (output_bfd, | |
2231 | &fdr, | |
2232 | (*sym_ptr)->name, | |
2233 | false); | |
2234 | ||
2235 | if (bfd_is_com_section ((*sym_ptr)->section) | |
2236 | || (*sym_ptr)->section == &bfd_und_section) | |
2237 | internal_sym.value = (*sym_ptr)->value; | |
2238 | else | |
2239 | internal_sym.value = ((*sym_ptr)->value | |
2240 | + (*sym_ptr)->section->output_offset | |
2241 | + (*sym_ptr)->section->output_section->vma); | |
2242 | internal_sym.st = stNil; | |
2243 | internal_sym.sc = scUndefined; | |
2244 | internal_sym.index = indexNil; | |
2245 | (*swap_sym_out) (output_bfd, &internal_sym, | |
2246 | ((char *) output_ecoff->external_sym | |
2247 | + output_symhdr->isymMax * external_sym_size)); | |
2248 | ++fdr.csym; | |
2249 | ++output_symhdr->isymMax; | |
2250 | } | |
2251 | ||
2252 | bfd_release (output_bfd, (PTR) symbols); | |
2253 | ||
2254 | /* Leave everything else in the FDR zeroed out. This will cause | |
2255 | the lang field to be langC. The fBigendian field will | |
2256 | indicate little endian format, but it doesn't matter because | |
2257 | it only applies to aux fields and there are none. */ | |
2258 | ||
2259 | (*swap_fdr_out) (output_bfd, &fdr, | |
2260 | ((char *) output_ecoff->external_fdr | |
2261 | + output_symhdr->ifdMax * external_fdr_size)); | |
2262 | ++output_symhdr->ifdMax; | |
2263 | return true; | |
2264 | } | |
2265 | ||
2266 | /* This is an ECOFF BFD. We want to grab the information from | |
2267 | input_bfd and attach it to output_bfd. */ | |
2268 | count = bfd_get_symcount (input_bfd); | |
2269 | if (count == 0) | |
2270 | return true; | |
2271 | input_ecoff = ecoff_data (input_bfd); | |
2272 | input_symhdr = &input_ecoff->symbolic_header; | |
2273 | ||
2274 | /* I think that it is more efficient to simply copy the debugging | |
2275 | information from the input BFD to the output BFD. Because ECOFF | |
2276 | uses relative pointers for most of the debugging information, | |
2277 | only a little of it has to be changed at all. */ | |
2278 | ||
2279 | /* Swap in the local symbols, adjust their values, and swap them out | |
2280 | again. The external symbols are handled separately. */ | |
2281 | sym_out = ((char *) output_ecoff->external_sym | |
2282 | + output_symhdr->isymMax * external_sym_size); | |
2283 | ||
2284 | esym_ptr = ecoff_data (input_bfd)->canonical_symbols; | |
2285 | esym_end = esym_ptr + count; | |
2286 | for (; esym_ptr < esym_end; esym_ptr++) | |
2287 | { | |
2288 | if (esym_ptr->local) | |
2289 | { | |
2290 | SYMR sym; | |
2291 | ||
2292 | (*swap_sym_in) (input_bfd, esym_ptr->native, &sym); | |
2293 | ||
2294 | /* If we're producing an executable, move common symbols | |
2295 | into bss. */ | |
2296 | if (relocateable == false) | |
2297 | { | |
2298 | if (sym.sc == scCommon) | |
2299 | sym.sc = scBss; | |
2300 | else if (sym.sc == scSCommon) | |
2301 | sym.sc = scSBss; | |
2302 | } | |
2303 | ||
2304 | if (! bfd_is_com_section (esym_ptr->symbol.section) | |
2305 | && (esym_ptr->symbol.flags & BSF_DEBUGGING) == 0 | |
2306 | && esym_ptr->symbol.section != &bfd_und_section) | |
2307 | sym.value = (esym_ptr->symbol.value | |
2308 | + esym_ptr->symbol.section->output_offset | |
2309 | + esym_ptr->symbol.section->output_section->vma); | |
2310 | (*swap_sym_out) (output_bfd, &sym, sym_out); | |
2311 | sym_out += external_sym_size; | |
2312 | } | |
2313 | } | |
2314 | ||
2315 | /* That should have accounted for all the local symbols in | |
2316 | input_bfd. */ | |
2317 | ||
2318 | /* Copy the information that does not need swapping. */ | |
2319 | memcpy (output_ecoff->line + output_symhdr->cbLine, | |
2320 | input_ecoff->line, | |
2321 | input_symhdr->cbLine * sizeof (unsigned char)); | |
2322 | memcpy (output_ecoff->external_aux + output_symhdr->iauxMax, | |
2323 | input_ecoff->external_aux, | |
2324 | input_symhdr->iauxMax * sizeof (union aux_ext)); | |
2325 | memcpy (output_ecoff->ss + output_symhdr->issMax, | |
2326 | input_ecoff->ss, | |
2327 | input_symhdr->issMax * sizeof (char)); | |
2328 | ||
2329 | /* Some of the information may need to be swapped. */ | |
2330 | if (output_bfd->xvec->header_byteorder_big_p | |
2331 | == input_bfd->xvec->header_byteorder_big_p) | |
2332 | { | |
2333 | /* The two BFD's have the same endianness, so memcpy will | |
2334 | suffice. */ | |
2335 | if (input_symhdr->idnMax > 0) | |
2336 | memcpy (((char *) output_ecoff->external_dnr | |
2337 | + output_symhdr->idnMax * backend->external_dnr_size), | |
2338 | input_ecoff->external_dnr, | |
2339 | input_symhdr->idnMax * backend->external_dnr_size); | |
2340 | if (input_symhdr->ipdMax > 0) | |
2341 | memcpy (((char *) output_ecoff->external_pdr | |
2342 | + output_symhdr->ipdMax * external_pdr_size), | |
2343 | input_ecoff->external_pdr, | |
2344 | input_symhdr->ipdMax * external_pdr_size); | |
2345 | if (input_symhdr->ioptMax > 0) | |
2346 | memcpy (((char *) output_ecoff->external_opt | |
2347 | + output_symhdr->ioptMax * backend->external_opt_size), | |
2348 | input_ecoff->external_opt, | |
2349 | input_symhdr->ioptMax * backend->external_opt_size); | |
2350 | } | |
2351 | else | |
2352 | { | |
2353 | bfd_size_type sz; | |
2354 | char *in; | |
2355 | char *end; | |
2356 | char *out; | |
2357 | ||
2358 | /* The two BFD's have different endianness, so we must swap | |
2359 | everything in and out. This code would always work, but it | |
2360 | would be slow in the normal case. */ | |
2361 | sz = backend->external_dnr_size; | |
2362 | in = (char *) input_ecoff->external_dnr; | |
2363 | end = in + input_symhdr->idnMax * sz; | |
2364 | out = (char *) output_ecoff->external_dnr + output_symhdr->idnMax * sz; | |
2365 | for (; in < end; in += sz, out += sz) | |
2366 | { | |
2367 | DNR dnr; | |
2368 | ||
2369 | (*backend->swap_dnr_in) (input_bfd, in, &dnr); | |
2370 | (*backend->swap_dnr_out) (output_bfd, &dnr, out); | |
2371 | } | |
2372 | ||
2373 | sz = external_pdr_size; | |
2374 | in = (char *) input_ecoff->external_pdr; | |
2375 | end = in + input_symhdr->ipdMax * sz; | |
2376 | out = (char *) output_ecoff->external_pdr + output_symhdr->ipdMax * sz; | |
2377 | for (; in < end; in += sz, out += sz) | |
2378 | { | |
2379 | PDR pdr; | |
2380 | ||
2381 | (*swap_pdr_in) (input_bfd, in, &pdr); | |
2382 | (*backend->swap_pdr_out) (output_bfd, &pdr, out); | |
2383 | } | |
2384 | ||
2385 | sz = backend->external_opt_size; | |
2386 | in = (char *) input_ecoff->external_opt; | |
2387 | end = in + input_symhdr->ioptMax * sz; | |
2388 | out = (char *) output_ecoff->external_opt + output_symhdr->ioptMax * sz; | |
2389 | for (; in < end; in += sz, out += sz) | |
2390 | { | |
2391 | OPTR opt; | |
2392 | ||
2393 | (*backend->swap_opt_in) (input_bfd, in, &opt); | |
2394 | (*backend->swap_opt_out) (output_bfd, &opt, out); | |
2395 | } | |
2396 | } | |
2397 | ||
2398 | /* Set ifdbase so that the external symbols know how to adjust their | |
2399 | ifd values. */ | |
2400 | input_ecoff->ifdbase = output_symhdr->ifdMax; | |
2401 | ||
2402 | fdr_ptr = input_ecoff->fdr; | |
2403 | fdr_end = fdr_ptr + input_symhdr->ifdMax; | |
2404 | fdr_out = ((char *) output_ecoff->external_fdr | |
2405 | + output_symhdr->ifdMax * external_fdr_size); | |
2406 | for (; fdr_ptr < fdr_end; fdr_ptr++, fdr_out += external_fdr_size) | |
2407 | { | |
2408 | FDR fdr; | |
2409 | unsigned long pdr_off; | |
2410 | ||
2411 | fdr = *fdr_ptr; | |
2412 | ||
2413 | /* The memory address for this fdr is the address for the seclet | |
2414 | plus the offset to this fdr within input_bfd. For some | |
2415 | reason the offset of the first procedure pointer is also | |
2416 | added in. */ | |
2417 | if (fdr.cpd == 0) | |
2418 | pdr_off = 0; | |
2419 | else | |
2420 | { | |
2421 | PDR pdr; | |
2422 | ||
2423 | (*swap_pdr_in) (input_bfd, | |
2424 | ((char *) input_ecoff->external_pdr | |
2425 | + fdr.ipdFirst * external_pdr_size), | |
2426 | &pdr); | |
2427 | pdr_off = pdr.adr; | |
2428 | } | |
2429 | fdr.adr = (bfd_get_section_vma (output_bfd, section) | |
2430 | + seclet->offset | |
2431 | + (fdr_ptr->adr - input_ecoff->fdr->adr) | |
2432 | + pdr_off); | |
2433 | ||
2434 | fdr.issBase += output_symhdr->issMax; | |
2435 | fdr.isymBase += output_symhdr->isymMax; | |
2436 | fdr.ilineBase += output_symhdr->ilineMax; | |
2437 | fdr.ioptBase += output_symhdr->ioptMax; | |
2438 | fdr.ipdFirst += output_symhdr->ipdMax; | |
2439 | fdr.iauxBase += output_symhdr->iauxMax; | |
2440 | fdr.rfdBase += output_symhdr->crfd; | |
2441 | ||
2442 | /* If there are no RFD's, we are going to add some. We don't | |
2443 | want to adjust irfd for this, so that all the FDR's can share | |
2444 | the RFD's. */ | |
2445 | if (input_symhdr->crfd == 0) | |
2446 | fdr.crfd = input_symhdr->ifdMax; | |
2447 | ||
2448 | if (fdr.cbLine != 0) | |
2449 | fdr.cbLineOffset += output_symhdr->cbLine; | |
2450 | ||
2451 | (*swap_fdr_out) (output_bfd, &fdr, fdr_out); | |
2452 | } | |
2453 | ||
2454 | if (input_symhdr->crfd > 0) | |
2455 | { | |
2456 | void (* const swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *)) | |
2457 | = backend->swap_rfd_in; | |
2458 | char *rfd_in; | |
2459 | char *rfd_end; | |
2460 | char *rfd_out; | |
2461 | ||
2462 | /* Swap and adjust the RFD's. RFD's are only created by the | |
2463 | linker, so this will only be necessary if one of the input | |
2464 | files is the result of a partial link. Presumably all | |
2465 | necessary RFD's are present. */ | |
2466 | rfd_in = (char *) input_ecoff->external_rfd; | |
2467 | rfd_end = rfd_in + input_symhdr->crfd * external_rfd_size; | |
2468 | rfd_out = ((char *) output_ecoff->external_rfd | |
2469 | + output_symhdr->crfd * external_rfd_size); | |
2470 | for (; | |
2471 | rfd_in < rfd_end; | |
2472 | rfd_in += external_rfd_size, rfd_out += external_rfd_size) | |
2473 | { | |
2474 | RFDT rfd; | |
2475 | ||
2476 | (*swap_rfd_in) (input_bfd, rfd_in, &rfd); | |
2477 | rfd += output_symhdr->ifdMax; | |
2478 | (*swap_rfd_out) (output_bfd, &rfd, rfd_out); | |
2479 | } | |
2480 | output_symhdr->crfd += input_symhdr->crfd; | |
2481 | } | |
2482 | else | |
2483 | { | |
2484 | char *rfd_out; | |
2485 | char *rfd_end; | |
2486 | RFDT rfd; | |
2487 | ||
2488 | /* Create RFD's. Some of the debugging information includes | |
2489 | relative file indices. These indices are taken as indices to | |
2490 | the RFD table if there is one, or to the global table if | |
2491 | there is not. If we did not create RFD's, we would have to | |
2492 | parse and adjust all the debugging information which contains | |
2493 | file indices. */ | |
2494 | rfd = output_symhdr->ifdMax; | |
2495 | rfd_out = ((char *) output_ecoff->external_rfd | |
2496 | + output_symhdr->crfd * external_rfd_size); | |
2497 | rfd_end = rfd_out + input_symhdr->ifdMax * external_rfd_size; | |
2498 | for (; rfd_out < rfd_end; rfd_out += external_rfd_size, rfd++) | |
2499 | (*swap_rfd_out) (output_bfd, &rfd, rfd_out); | |
2500 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2501 | } | |
2502 | ||
48edba81 ILT |
2503 | /* Combine the register masks. Not all of these are used on all |
2504 | targets, but that's OK because only the relevant ones will be | |
2505 | swapped in and out. */ | |
dae31cf5 ILT |
2506 | { |
2507 | int i; | |
2508 | ||
2509 | output_ecoff->gprmask |= input_ecoff->gprmask; | |
48edba81 | 2510 | output_ecoff->fprmask |= input_ecoff->fprmask; |
dae31cf5 ILT |
2511 | for (i = 0; i < 4; i++) |
2512 | output_ecoff->cprmask[i] |= input_ecoff->cprmask[i]; | |
2513 | } | |
2514 | ||
2515 | /* Update the counts. */ | |
2516 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2517 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2518 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2519 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2520 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2521 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2522 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2523 | output_symhdr->issMax += input_symhdr->issMax; | |
2524 | output_symhdr->ifdMax += input_symhdr->ifdMax; | |
2525 | ||
2526 | return true; | |
2527 | } | |
2528 | ||
2529 | /* This is the actual link routine. It makes two passes over all the | |
2530 | seclets. */ | |
2531 | ||
2532 | boolean | |
2533 | ecoff_bfd_seclet_link (abfd, data, relocateable) | |
2534 | bfd *abfd; | |
2535 | PTR data; | |
2536 | boolean relocateable; | |
2537 | { | |
2538 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2539 | HDRR *symhdr; | |
2540 | int ipass; | |
2541 | register asection *o; | |
2542 | register bfd_seclet_type *p; | |
2543 | asymbol **sym_ptr_ptr; | |
2544 | bfd_size_type debug_align; | |
2545 | bfd_size_type size; | |
2546 | char *raw; | |
2547 | ||
2548 | /* We accumulate the debugging information counts in the symbolic | |
2549 | header. */ | |
2550 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
48edba81 | 2551 | symhdr->magic = backend->sym_magic; |
dae31cf5 ILT |
2552 | /* FIXME: What should the version stamp be? */ |
2553 | symhdr->vstamp = 0; | |
2554 | symhdr->ilineMax = 0; | |
2555 | symhdr->cbLine = 0; | |
2556 | symhdr->idnMax = 0; | |
2557 | symhdr->ipdMax = 0; | |
2558 | symhdr->isymMax = 0; | |
2559 | symhdr->ioptMax = 0; | |
2560 | symhdr->iauxMax = 0; | |
2561 | symhdr->issMax = 0; | |
2562 | symhdr->issExtMax = 0; | |
2563 | symhdr->ifdMax = 0; | |
2564 | symhdr->crfd = 0; | |
2565 | symhdr->iextMax = 0; | |
2566 | ||
2567 | /* We need to copy over the debugging symbols from each input BFD. | |
2568 | When we do this copying, we have to adjust the text address in | |
2569 | the FDR structures, so we have to know the text address used for | |
2570 | the input BFD. Since we only want to copy the symbols once per | |
2571 | input BFD, but we are going to look at each input BFD multiple | |
2572 | times (once for each section it provides), we arrange to always | |
2573 | look at the text section first. That means that when we copy the | |
2574 | debugging information, we always know the text address. So we | |
2575 | actually do each pass in two sub passes; first the text sections, | |
2576 | then the non-text sections. We use the output_has_begun flag to | |
2577 | determine whether we have copied over the debugging information | |
2578 | yet. */ | |
2579 | ||
2580 | /* Do the first pass: set the output section contents and count the | |
2581 | debugging information. */ | |
2582 | ecoff_clear_output_flags (abfd); | |
2583 | for (ipass = 0; ipass < 2; ipass++) | |
2584 | { | |
2585 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2586 | { | |
2587 | /* For SEC_CODE sections, (flags & SEC_CODE) == 0 is false, | |
2588 | so they are done on pass 0. For other sections the | |
2589 | expression is true, so they are done on pass 1. */ | |
2590 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2591 | continue; | |
2592 | ||
2593 | for (p = o->seclets_head; | |
2594 | p != (bfd_seclet_type *) NULL; | |
2595 | p = p->next) | |
2596 | { | |
2597 | if (ecoff_dump_seclet (abfd, p, o, data, relocateable) | |
2598 | == false) | |
2599 | return false; | |
2600 | } | |
2601 | } | |
2602 | } | |
2603 | ||
2604 | /* We handle the external symbols differently. We use the ones | |
2605 | attached to the output_bfd. The linker will have already | |
2606 | determined which symbols are to be attached. Here we just | |
2607 | determine how much space we will need for them. */ | |
2608 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2609 | if (sym_ptr_ptr != NULL) | |
2610 | { | |
2611 | asymbol **sym_end; | |
2612 | ||
2613 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
2614 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
2615 | { | |
2616 | if (((*sym_ptr_ptr)->flags & BSF_DEBUGGING) == 0 | |
2617 | && ((*sym_ptr_ptr)->flags & BSF_LOCAL) == 0) | |
2618 | { | |
2619 | ++symhdr->iextMax; | |
2620 | symhdr->issExtMax += strlen ((*sym_ptr_ptr)->name) + 1; | |
2621 | } | |
2622 | } | |
2623 | } | |
2624 | ||
2625 | /* Adjust the counts so that structures are longword aligned. */ | |
2626 | debug_align = backend->debug_align; | |
2627 | --debug_align; | |
2628 | symhdr->cbLine = (symhdr->cbLine + debug_align) &~ debug_align; | |
2629 | symhdr->issMax = (symhdr->issMax + debug_align) &~ debug_align; | |
2630 | symhdr->issExtMax = (symhdr->issExtMax + debug_align) &~ debug_align; | |
2631 | ||
2632 | /* Now the counts in symhdr are the correct size for the debugging | |
2633 | information. We allocate the right amount of space, and reset | |
2634 | the counts so that the second pass can use them as indices. It | |
2635 | would be possible to output the debugging information directly to | |
2636 | the file in pass 2, rather than to build it in memory and then | |
2637 | write it out. Outputting to the file would require a lot of | |
2638 | seeks and small writes, though, and I think this approach is | |
2639 | faster. */ | |
2640 | size = (symhdr->cbLine * sizeof (unsigned char) | |
2641 | + symhdr->idnMax * backend->external_dnr_size | |
2642 | + symhdr->ipdMax * backend->external_pdr_size | |
2643 | + symhdr->isymMax * backend->external_sym_size | |
2644 | + symhdr->ioptMax * backend->external_opt_size | |
2645 | + symhdr->iauxMax * sizeof (union aux_ext) | |
2646 | + symhdr->issMax * sizeof (char) | |
2647 | + symhdr->issExtMax * sizeof (char) | |
2648 | + symhdr->ifdMax * backend->external_fdr_size | |
2649 | + symhdr->crfd * backend->external_rfd_size | |
2650 | + symhdr->iextMax * backend->external_ext_size); | |
2651 | raw = (char *) bfd_alloc (abfd, size); | |
2652 | if (raw == (char *) NULL) | |
2653 | { | |
2654 | bfd_error = no_memory; | |
2655 | return false; | |
2656 | } | |
2657 | ecoff_data (abfd)->raw_size = size; | |
2658 | ecoff_data (abfd)->raw_syments = (PTR) raw; | |
2659 | ||
2660 | /* Initialize the raw pointers. */ | |
2661 | #define SET(field, count, type, size) \ | |
2662 | ecoff_data (abfd)->field = (type) raw; \ | |
2663 | raw += symhdr->count * size | |
2664 | ||
2665 | SET (line, cbLine, unsigned char *, sizeof (unsigned char)); | |
2666 | SET (external_dnr, idnMax, PTR, backend->external_dnr_size); | |
2667 | SET (external_pdr, ipdMax, PTR, backend->external_pdr_size); | |
2668 | SET (external_sym, isymMax, PTR, backend->external_sym_size); | |
2669 | SET (external_opt, ioptMax, PTR, backend->external_opt_size); | |
2670 | SET (external_aux, iauxMax, union aux_ext *, sizeof (union aux_ext)); | |
2671 | SET (ss, issMax, char *, sizeof (char)); | |
2672 | SET (ssext, issExtMax, char *, sizeof (char)); | |
2673 | SET (external_fdr, ifdMax, PTR, backend->external_fdr_size); | |
2674 | SET (external_rfd, crfd, PTR, backend->external_rfd_size); | |
2675 | SET (external_ext, iextMax, PTR, backend->external_ext_size); | |
2676 | #undef SET | |
2677 | ||
2678 | /* Reset the counts so the second pass can use them to know how far | |
2679 | it has gotten. */ | |
2680 | symhdr->ilineMax = 0; | |
2681 | symhdr->cbLine = 0; | |
2682 | symhdr->idnMax = 0; | |
2683 | symhdr->ipdMax = 0; | |
2684 | symhdr->isymMax = 0; | |
2685 | symhdr->ioptMax = 0; | |
2686 | symhdr->iauxMax = 0; | |
2687 | symhdr->issMax = 0; | |
2688 | symhdr->issExtMax = 0; | |
2689 | symhdr->ifdMax = 0; | |
2690 | symhdr->crfd = 0; | |
2691 | symhdr->iextMax = 0; | |
2692 | ||
2693 | /* Do the second pass: accumulate the debugging information. */ | |
2694 | ecoff_clear_output_flags (abfd); | |
2695 | for (ipass = 0; ipass < 2; ipass++) | |
2696 | { | |
2697 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2698 | { | |
2699 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2700 | continue; | |
2701 | for (p = o->seclets_head; | |
2702 | p != (bfd_seclet_type *) NULL; | |
2703 | p = p->next) | |
2704 | { | |
2705 | if (p->type == bfd_indirect_seclet) | |
2706 | { | |
2707 | if (ecoff_get_debug (abfd, p, o, relocateable) == false) | |
2708 | return false; | |
2709 | } | |
2710 | } | |
2711 | } | |
2712 | } | |
2713 | ||
2714 | /* Put in the external symbols. */ | |
2715 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2716 | if (sym_ptr_ptr != NULL) | |
2717 | { | |
2718 | const bfd_size_type external_ext_size = backend->external_ext_size; | |
2719 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
2720 | = backend->swap_ext_in; | |
2721 | void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR)) | |
2722 | = backend->swap_ext_out; | |
2723 | char *ssext; | |
2724 | char *external_ext; | |
2725 | ||
2726 | ssext = ecoff_data (abfd)->ssext; | |
2727 | external_ext = (char *) ecoff_data (abfd)->external_ext; | |
2728 | for (; *sym_ptr_ptr != NULL; sym_ptr_ptr++) | |
2729 | { | |
2730 | asymbol *sym_ptr; | |
2731 | EXTR esym; | |
2732 | ||
2733 | sym_ptr = *sym_ptr_ptr; | |
2734 | ||
2735 | if ((sym_ptr->flags & BSF_DEBUGGING) != 0 | |
2736 | || (sym_ptr->flags & BSF_LOCAL) != 0) | |
2737 | continue; | |
2738 | ||
2739 | /* The native pointer can be NULL for a symbol created by | |
2740 | the linker via ecoff_make_empty_symbol. */ | |
2741 | if (bfd_asymbol_flavour (sym_ptr) != bfd_target_ecoff_flavour | |
2742 | || ecoffsymbol (sym_ptr)->native == NULL) | |
2743 | { | |
2744 | esym.jmptbl = 0; | |
2745 | esym.cobol_main = 0; | |
2746 | esym.weakext = 0; | |
2747 | esym.reserved = 0; | |
2748 | esym.ifd = ifdNil; | |
2749 | /* FIXME: we can do better than this for st and sc. */ | |
2750 | esym.asym.st = stGlobal; | |
2751 | esym.asym.sc = scAbs; | |
2752 | esym.asym.reserved = 0; | |
2753 | esym.asym.index = indexNil; | |
2754 | } | |
2755 | else | |
2756 | { | |
2757 | ecoff_symbol_type *ecoff_sym_ptr; | |
2758 | ||
2759 | ecoff_sym_ptr = ecoffsymbol (sym_ptr); | |
2760 | if (ecoff_sym_ptr->local) | |
2761 | abort (); | |
2762 | (*swap_ext_in) (abfd, ecoff_sym_ptr->native, &esym); | |
2763 | ||
2764 | /* If we're producing an executable, move common symbols | |
2765 | into bss. */ | |
2766 | if (relocateable == false) | |
2767 | { | |
2768 | if (esym.asym.sc == scCommon) | |
2769 | esym.asym.sc = scBss; | |
2770 | else if (esym.asym.sc == scSCommon) | |
2771 | esym.asym.sc = scSBss; | |
2772 | } | |
2773 | ||
2774 | /* Adjust the FDR index for the symbol by that used for | |
2775 | the input BFD. */ | |
2776 | esym.ifd += ecoff_data (bfd_asymbol_bfd (sym_ptr))->ifdbase; | |
2777 | } | |
2778 | ||
2779 | esym.asym.iss = symhdr->issExtMax; | |
2780 | ||
2781 | if (bfd_is_com_section (sym_ptr->section) | |
2782 | || sym_ptr->section == &bfd_und_section) | |
2783 | esym.asym.value = sym_ptr->value; | |
2784 | else | |
2785 | esym.asym.value = (sym_ptr->value | |
2786 | + sym_ptr->section->output_offset | |
2787 | + sym_ptr->section->output_section->vma); | |
2788 | ||
2789 | (*swap_ext_out) (abfd, &esym, external_ext); | |
2790 | ||
2791 | ecoff_set_sym_index (sym_ptr, symhdr->iextMax); | |
2792 | ||
2793 | external_ext += external_ext_size; | |
2794 | ++symhdr->iextMax; | |
2795 | ||
2796 | strcpy (ssext + symhdr->issExtMax, sym_ptr->name); | |
2797 | symhdr->issExtMax += strlen (sym_ptr->name) + 1; | |
2798 | } | |
2799 | } | |
2800 | ||
2801 | /* Adjust the counts so that structures are longword aligned. */ | |
2802 | symhdr->cbLine = (symhdr->cbLine + debug_align) &~ debug_align; | |
2803 | symhdr->issMax = (symhdr->issMax + debug_align) &~ debug_align; | |
2804 | symhdr->issExtMax = (symhdr->issExtMax + debug_align) &~ debug_align; | |
2805 | ||
2806 | return true; | |
2807 | } | |
2808 | \f | |
2809 | /* Set the architecture. The supported architecture is stored in the | |
2810 | backend pointer. We always set the architecture anyhow, since many | |
2811 | callers ignore the return value. */ | |
2812 | ||
2813 | boolean | |
2814 | ecoff_set_arch_mach (abfd, arch, machine) | |
2815 | bfd *abfd; | |
2816 | enum bfd_architecture arch; | |
2817 | unsigned long machine; | |
2818 | { | |
2819 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2820 | return arch == ecoff_backend (abfd)->arch; | |
2821 | } | |
2822 | ||
2823 | /* Get the size of the section headers. We do not output the .scommon | |
2824 | section which we created in ecoff_mkobject. */ | |
2825 | ||
2826 | int | |
2827 | ecoff_sizeof_headers (abfd, reloc) | |
2828 | bfd *abfd; | |
2829 | boolean reloc; | |
2830 | { | |
2831 | return (bfd_coff_filhsz (abfd) | |
2832 | + bfd_coff_aoutsz (abfd) | |
2833 | + (abfd->section_count - 1) * bfd_coff_scnhsz (abfd)); | |
2834 | } | |
2835 | ||
2836 | /* Calculate the file position for each section, and set | |
2837 | reloc_filepos. */ | |
2838 | ||
2839 | static void | |
2840 | ecoff_compute_section_file_positions (abfd) | |
2841 | bfd *abfd; | |
2842 | { | |
2843 | asection *current; | |
2844 | file_ptr sofar; | |
2845 | file_ptr old_sofar; | |
2846 | boolean first_data; | |
2847 | ||
2848 | if (bfd_get_start_address (abfd)) | |
2849 | abfd->flags |= EXEC_P; | |
2850 | ||
2851 | sofar = ecoff_sizeof_headers (abfd, false); | |
2852 | ||
2853 | first_data = true; | |
2854 | for (current = abfd->sections; | |
2855 | current != (asection *) NULL; | |
2856 | current = current->next) | |
2857 | { | |
2858 | /* Only deal with sections which have contents */ | |
e544ed4f | 2859 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) == 0 |
dae31cf5 ILT |
2860 | || strcmp (current->name, SCOMMON) == 0) |
2861 | continue; | |
2862 | ||
2863 | /* On Ultrix, the data sections in an executable file must be | |
2864 | aligned to a page boundary within the file. This does not | |
2865 | affect the section size, though. FIXME: Does this work for | |
2866 | other platforms? */ | |
2867 | if ((abfd->flags & EXEC_P) != 0 | |
2868 | && (abfd->flags & D_PAGED) != 0 | |
2869 | && first_data != false | |
2870 | && (current->flags & SEC_CODE) == 0) | |
2871 | { | |
2872 | const bfd_vma round = ecoff_backend (abfd)->round; | |
2873 | ||
2874 | sofar = (sofar + round - 1) &~ (round - 1); | |
2875 | first_data = false; | |
2876 | } | |
2877 | ||
2878 | /* Align the sections in the file to the same boundary on | |
2879 | which they are aligned in virtual memory. */ | |
2880 | old_sofar = sofar; | |
2881 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2882 | ||
2883 | current->filepos = sofar; | |
2884 | ||
2885 | sofar += current->_raw_size; | |
2886 | ||
2887 | /* make sure that this section is of the right size too */ | |
2888 | old_sofar = sofar; | |
2889 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
2890 | current->_raw_size += sofar - old_sofar; | |
2891 | } | |
2892 | ||
2893 | ecoff_data (abfd)->reloc_filepos = sofar; | |
2894 | } | |
2895 | ||
2896 | /* Set the contents of a section. */ | |
2897 | ||
2898 | boolean | |
2899 | ecoff_set_section_contents (abfd, section, location, offset, count) | |
2900 | bfd *abfd; | |
2901 | asection *section; | |
2902 | PTR location; | |
2903 | file_ptr offset; | |
2904 | bfd_size_type count; | |
2905 | { | |
2906 | if (abfd->output_has_begun == false) | |
2907 | ecoff_compute_section_file_positions (abfd); | |
2908 | ||
2909 | bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET); | |
2910 | ||
2911 | if (count != 0) | |
2912 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
2913 | ||
2914 | return true; | |
2915 | } | |
2916 | ||
2917 | /* Write out an ECOFF file. */ | |
2918 | ||
2919 | boolean | |
2920 | ecoff_write_object_contents (abfd) | |
2921 | bfd *abfd; | |
2922 | { | |
2923 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2924 | const bfd_vma round = backend->round; | |
2925 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); | |
2926 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); | |
2927 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); | |
2928 | const bfd_size_type external_hdr_size = backend->external_hdr_size; | |
2929 | const bfd_size_type external_reloc_size = backend->external_reloc_size; | |
2930 | void (* const swap_reloc_out) PARAMS ((bfd *, | |
2931 | const struct internal_reloc *, | |
2932 | PTR)) | |
2933 | = backend->swap_reloc_out; | |
2934 | asection *current; | |
2935 | unsigned int count; | |
2936 | file_ptr scn_base; | |
2937 | file_ptr reloc_base; | |
2938 | file_ptr sym_base; | |
2939 | unsigned long reloc_size; | |
2940 | unsigned long text_size; | |
2941 | unsigned long text_start; | |
2942 | unsigned long data_size; | |
2943 | unsigned long data_start; | |
2944 | unsigned long bss_size; | |
2945 | PTR buff; | |
2946 | struct internal_filehdr internal_f; | |
2947 | struct internal_aouthdr internal_a; | |
2948 | int i; | |
2949 | ||
2950 | bfd_error = system_call_error; | |
2951 | ||
2952 | if(abfd->output_has_begun == false) | |
2953 | ecoff_compute_section_file_positions(abfd); | |
2954 | ||
2955 | if (abfd->sections != (asection *) NULL) | |
2956 | scn_base = abfd->sections->filepos; | |
2957 | else | |
2958 | scn_base = 0; | |
2959 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
2960 | ||
2961 | count = 1; | |
2962 | reloc_size = 0; | |
2963 | for (current = abfd->sections; | |
2964 | current != (asection *)NULL; | |
2965 | current = current->next) | |
2966 | { | |
2967 | if (strcmp (current->name, SCOMMON) == 0) | |
2968 | continue; | |
2969 | current->target_index = count; | |
2970 | ++count; | |
2971 | if (current->reloc_count != 0) | |
2972 | { | |
2973 | bfd_size_type relsize; | |
2974 | ||
2975 | current->rel_filepos = reloc_base; | |
2976 | relsize = current->reloc_count * external_reloc_size; | |
2977 | reloc_size += relsize; | |
2978 | reloc_base += relsize; | |
2979 | } | |
2980 | else | |
2981 | current->rel_filepos = 0; | |
2982 | } | |
2983 | ||
2984 | sym_base = reloc_base + reloc_size; | |
2985 | ||
2986 | /* At least on Ultrix, the symbol table of an executable file must | |
2987 | be aligned to a page boundary. FIXME: Is this true on other | |
2988 | platforms? */ | |
2989 | if ((abfd->flags & EXEC_P) != 0 | |
2990 | && (abfd->flags & D_PAGED) != 0) | |
2991 | sym_base = (sym_base + round - 1) &~ (round - 1); | |
2992 | ||
2993 | ecoff_data (abfd)->sym_filepos = sym_base; | |
2994 | ||
2995 | if ((abfd->flags & D_PAGED) != 0) | |
2996 | text_size = ecoff_sizeof_headers (abfd, false); | |
2997 | else | |
2998 | text_size = 0; | |
2999 | text_start = 0; | |
3000 | data_size = 0; | |
3001 | data_start = 0; | |
3002 | bss_size = 0; | |
3003 | ||
3004 | /* Write section headers to the file. */ | |
3005 | ||
3006 | buff = (PTR) alloca (scnhsz); | |
3007 | internal_f.f_nscns = 0; | |
3008 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) | |
3009 | return false; | |
3010 | for (current = abfd->sections; | |
3011 | current != (asection *) NULL; | |
3012 | current = current->next) | |
3013 | { | |
3014 | struct internal_scnhdr section; | |
3015 | bfd_vma vma; | |
3016 | ||
3017 | if (strcmp (current->name, SCOMMON) == 0) | |
3018 | { | |
3019 | BFD_ASSERT (bfd_get_section_size_before_reloc (current) == 0 | |
3020 | && current->reloc_count == 0); | |
3021 | continue; | |
3022 | } | |
3023 | ||
3024 | ++internal_f.f_nscns; | |
3025 | ||
3026 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
3027 | ||
3028 | /* FIXME: is this correct for shared libraries? I think it is | |
3029 | but I have no platform to check. Ian Lance Taylor. */ | |
3030 | vma = bfd_get_section_vma (abfd, current); | |
3031 | if (strcmp (current->name, _LIB) == 0) | |
3032 | section.s_vaddr = 0; | |
3033 | else | |
3034 | section.s_vaddr = vma; | |
3035 | ||
3036 | section.s_paddr = vma; | |
3037 | section.s_size = bfd_get_section_size_before_reloc (current); | |
3038 | ||
e544ed4f ILT |
3039 | /* If this section is unloadable then the scnptr will be 0. */ |
3040 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
dae31cf5 ILT |
3041 | section.s_scnptr = 0; |
3042 | else | |
3043 | section.s_scnptr = current->filepos; | |
3044 | section.s_relptr = current->rel_filepos; | |
3045 | ||
3046 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
3047 | object file produced by the assembler is supposed to point to | |
3048 | information about how much room is required by objects of | |
3049 | various different sizes. I think this only matters if we | |
3050 | want the linker to compute the best size to use, or | |
3051 | something. I don't know what happens if the information is | |
3052 | not present. */ | |
3053 | section.s_lnnoptr = 0; | |
3054 | ||
3055 | section.s_nreloc = current->reloc_count; | |
3056 | section.s_nlnno = 0; | |
3057 | section.s_flags = ecoff_sec_to_styp_flags (current->name, | |
3058 | current->flags); | |
3059 | ||
3060 | bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff); | |
3061 | if (bfd_write (buff, 1, scnhsz, abfd) != scnhsz) | |
3062 | return false; | |
3063 | ||
3064 | if ((section.s_flags & STYP_TEXT) != 0) | |
3065 | { | |
3066 | text_size += bfd_get_section_size_before_reloc (current); | |
3067 | if (text_start == 0 || text_start > vma) | |
3068 | text_start = vma; | |
3069 | } | |
3070 | else if ((section.s_flags & STYP_RDATA) != 0 | |
3071 | || (section.s_flags & STYP_DATA) != 0 | |
3072 | || (section.s_flags & STYP_LIT8) != 0 | |
3073 | || (section.s_flags & STYP_LIT4) != 0 | |
3074 | || (section.s_flags & STYP_SDATA) != 0) | |
3075 | { | |
3076 | data_size += bfd_get_section_size_before_reloc (current); | |
3077 | if (data_start == 0 || data_start > vma) | |
3078 | data_start = vma; | |
3079 | } | |
3080 | else if ((section.s_flags & STYP_BSS) != 0 | |
3081 | || (section.s_flags & STYP_SBSS) != 0) | |
3082 | bss_size += bfd_get_section_size_before_reloc (current); | |
3083 | } | |
3084 | ||
3085 | /* Set up the file header. */ | |
3086 | ||
3087 | if (abfd->xvec->header_byteorder_big_p != false) | |
3088 | internal_f.f_magic = backend->big_magic; | |
3089 | else | |
3090 | internal_f.f_magic = backend->little_magic; | |
3091 | ||
3092 | /* We will NOT put a fucking timestamp in the header here. Every | |
3093 | time you put it back, I will come in and take it out again. I'm | |
3094 | sorry. This field does not belong here. We fill it with a 0 so | |
3095 | it compares the same but is not a reasonable time. -- | |
3096 | gnu@cygnus.com. */ | |
3097 | internal_f.f_timdat = 0; | |
3098 | ||
3099 | if (bfd_get_symcount (abfd) != 0) | |
3100 | { | |
3101 | /* The ECOFF f_nsyms field is not actually the number of | |
3102 | symbols, it's the size of symbolic information header. */ | |
3103 | internal_f.f_nsyms = external_hdr_size; | |
3104 | internal_f.f_symptr = sym_base; | |
3105 | } | |
3106 | else | |
3107 | { | |
3108 | internal_f.f_nsyms = 0; | |
3109 | internal_f.f_symptr = 0; | |
3110 | } | |
3111 | ||
3112 | internal_f.f_opthdr = aoutsz; | |
3113 | ||
3114 | internal_f.f_flags = F_LNNO; | |
3115 | if (reloc_size == 0) | |
3116 | internal_f.f_flags |= F_RELFLG; | |
3117 | if (bfd_get_symcount (abfd) == 0) | |
3118 | internal_f.f_flags |= F_LSYMS; | |
3119 | if (abfd->flags & EXEC_P) | |
3120 | internal_f.f_flags |= F_EXEC; | |
3121 | ||
3122 | if (! abfd->xvec->byteorder_big_p) | |
3123 | internal_f.f_flags |= F_AR32WR; | |
3124 | else | |
3125 | internal_f.f_flags |= F_AR32W; | |
3126 | ||
3127 | /* Set up the ``optional'' header. */ | |
3128 | if ((abfd->flags & D_PAGED) != 0) | |
3129 | internal_a.magic = ECOFF_AOUT_ZMAGIC; | |
3130 | else | |
3131 | internal_a.magic = ECOFF_AOUT_OMAGIC; | |
3132 | ||
3133 | /* FIXME: This is what Ultrix puts in, and it makes the Ultrix | |
3134 | linker happy. But, is it right? */ | |
3135 | internal_a.vstamp = 0x20a; | |
3136 | ||
3137 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
3138 | FIXME: Is this true on other platforms? */ | |
3139 | if ((abfd->flags & D_PAGED) != 0) | |
3140 | { | |
3141 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); | |
3142 | internal_a.text_start = text_start &~ (round - 1); | |
3143 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); | |
3144 | internal_a.data_start = data_start &~ (round - 1); | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | internal_a.tsize = text_size; | |
3149 | internal_a.text_start = text_start; | |
3150 | internal_a.dsize = data_size; | |
3151 | internal_a.data_start = data_start; | |
3152 | } | |
3153 | ||
3154 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
3155 | are at the end of the data section. The bsize field in the | |
3156 | optional header records how many bss bytes are required beyond | |
3157 | those in the data section. The value is not rounded to a page | |
3158 | boundary. */ | |
3159 | if (bss_size < internal_a.dsize - data_size) | |
3160 | bss_size = 0; | |
3161 | else | |
3162 | bss_size -= internal_a.dsize - data_size; | |
3163 | internal_a.bsize = bss_size; | |
3164 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
3165 | ||
3166 | internal_a.entry = bfd_get_start_address (abfd); | |
3167 | ||
3168 | internal_a.gp_value = ecoff_data (abfd)->gp; | |
3169 | ||
3170 | internal_a.gprmask = ecoff_data (abfd)->gprmask; | |
48edba81 | 3171 | internal_a.fprmask = ecoff_data (abfd)->fprmask; |
dae31cf5 ILT |
3172 | for (i = 0; i < 4; i++) |
3173 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
3174 | ||
3175 | /* Write out the file header and the optional header. */ | |
3176 | ||
3177 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
3178 | return false; | |
3179 | ||
3180 | buff = (PTR) alloca (filhsz); | |
3181 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff); | |
3182 | if (bfd_write (buff, 1, filhsz, abfd) != filhsz) | |
3183 | return false; | |
3184 | ||
3185 | buff = (PTR) alloca (aoutsz); | |
3186 | bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff); | |
3187 | if (bfd_write (buff, 1, aoutsz, abfd) != aoutsz) | |
3188 | return false; | |
3189 | ||
3190 | /* Write out the relocs. */ | |
3191 | for (current = abfd->sections; | |
3192 | current != (asection *) NULL; | |
3193 | current = current->next) | |
3194 | { | |
3195 | arelent **reloc_ptr_ptr; | |
3196 | arelent **reloc_end; | |
3197 | char *out_ptr; | |
3198 | ||
3199 | if (current->reloc_count == 0) | |
3200 | continue; | |
3201 | ||
3202 | buff = bfd_alloc (abfd, current->reloc_count * external_reloc_size); | |
3203 | if (buff == NULL) | |
3204 | { | |
3205 | bfd_error = no_memory; | |
3206 | return false; | |
3207 | } | |
3208 | ||
3209 | reloc_ptr_ptr = current->orelocation; | |
3210 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
3211 | out_ptr = (char *) buff; | |
3212 | for (; | |
3213 | reloc_ptr_ptr < reloc_end; | |
3214 | reloc_ptr_ptr++, out_ptr += external_reloc_size) | |
3215 | { | |
3216 | arelent *reloc; | |
3217 | asymbol *sym; | |
3218 | struct internal_reloc in; | |
3219 | ||
3220 | memset (&in, 0, sizeof in); | |
3221 | ||
3222 | reloc = *reloc_ptr_ptr; | |
3223 | sym = *reloc->sym_ptr_ptr; | |
3224 | ||
dae31cf5 ILT |
3225 | in.r_vaddr = reloc->address + bfd_get_section_vma (abfd, current); |
3226 | in.r_type = reloc->howto->type; | |
3227 | ||
dae31cf5 ILT |
3228 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
3229 | { | |
3230 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
3231 | in.r_extern = 1; | |
3232 | } | |
3233 | else | |
3234 | { | |
3235 | CONST char *name; | |
3236 | ||
3237 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
3238 | if (strcmp (name, ".text") == 0) | |
3239 | in.r_symndx = RELOC_SECTION_TEXT; | |
3240 | else if (strcmp (name, ".rdata") == 0) | |
3241 | in.r_symndx = RELOC_SECTION_RDATA; | |
3242 | else if (strcmp (name, ".data") == 0) | |
3243 | in.r_symndx = RELOC_SECTION_DATA; | |
3244 | else if (strcmp (name, ".sdata") == 0) | |
3245 | in.r_symndx = RELOC_SECTION_SDATA; | |
3246 | else if (strcmp (name, ".sbss") == 0) | |
3247 | in.r_symndx = RELOC_SECTION_SBSS; | |
3248 | else if (strcmp (name, ".bss") == 0) | |
3249 | in.r_symndx = RELOC_SECTION_BSS; | |
3250 | else if (strcmp (name, ".init") == 0) | |
3251 | in.r_symndx = RELOC_SECTION_INIT; | |
3252 | else if (strcmp (name, ".lit8") == 0) | |
3253 | in.r_symndx = RELOC_SECTION_LIT8; | |
3254 | else if (strcmp (name, ".lit4") == 0) | |
3255 | in.r_symndx = RELOC_SECTION_LIT4; | |
3256 | else | |
3257 | abort (); | |
3258 | in.r_extern = 0; | |
3259 | } | |
3260 | ||
3261 | (*swap_reloc_out) (abfd, &in, (PTR) out_ptr); | |
3262 | } | |
3263 | ||
3264 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) | |
3265 | return false; | |
3266 | if (bfd_write (buff, external_reloc_size, current->reloc_count, abfd) | |
3267 | != external_reloc_size * current->reloc_count) | |
3268 | return false; | |
3269 | bfd_release (abfd, buff); | |
3270 | } | |
3271 | ||
3272 | /* Write out the symbolic debugging information. */ | |
3273 | if (bfd_get_symcount (abfd) > 0) | |
3274 | { | |
3275 | HDRR *symhdr; | |
3276 | unsigned long sym_offset; | |
3277 | ||
3278 | /* Set up the offsets in the symbolic header. */ | |
3279 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
3280 | sym_offset = ecoff_data (abfd)->sym_filepos + external_hdr_size; | |
3281 | ||
3282 | #define SET(offset, size, ptr) \ | |
3283 | if (symhdr->size == 0) \ | |
3284 | symhdr->offset = 0; \ | |
3285 | else \ | |
3286 | symhdr->offset = (((char *) ecoff_data (abfd)->ptr \ | |
3287 | - (char *) ecoff_data (abfd)->raw_syments) \ | |
3288 | + sym_offset); | |
3289 | ||
3290 | SET (cbLineOffset, cbLine, line); | |
3291 | SET (cbDnOffset, idnMax, external_dnr); | |
3292 | SET (cbPdOffset, ipdMax, external_pdr); | |
3293 | SET (cbSymOffset, isymMax, external_sym); | |
3294 | SET (cbOptOffset, ioptMax, external_opt); | |
3295 | SET (cbAuxOffset, iauxMax, external_aux); | |
3296 | SET (cbSsOffset, issMax, ss); | |
3297 | SET (cbSsExtOffset, issExtMax, ssext); | |
3298 | SET (cbFdOffset, ifdMax, external_fdr); | |
3299 | SET (cbRfdOffset, crfd, external_rfd); | |
3300 | SET (cbExtOffset, iextMax, external_ext); | |
3301 | #undef SET | |
3302 | ||
3303 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos, | |
3304 | SEEK_SET) != 0) | |
3305 | return false; | |
3306 | buff = (PTR) alloca (external_hdr_size); | |
3307 | (*backend->swap_hdr_out) (abfd, &ecoff_data (abfd)->symbolic_header, | |
3308 | buff); | |
3309 | if (bfd_write (buff, 1, external_hdr_size, abfd) != external_hdr_size) | |
3310 | return false; | |
3311 | if (bfd_write ((PTR) ecoff_data (abfd)->raw_syments, 1, | |
3312 | ecoff_data (abfd)->raw_size, abfd) | |
3313 | != ecoff_data (abfd)->raw_size) | |
3314 | return false; | |
3315 | } | |
3316 | else if ((abfd->flags & EXEC_P) != 0 | |
3317 | && (abfd->flags & D_PAGED) != 0) | |
3318 | { | |
3319 | char c; | |
3320 | ||
3321 | /* A demand paged executable must occupy an even number of | |
3322 | pages. */ | |
3323 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
3324 | SEEK_SET) != 0) | |
3325 | return false; | |
3326 | if (bfd_read (&c, 1, 1, abfd) == 0) | |
3327 | c = 0; | |
3328 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
3329 | SEEK_SET) != 0) | |
3330 | return false; | |
3331 | if (bfd_write (&c, 1, 1, abfd) != 1) | |
3332 | return false; | |
3333 | } | |
3334 | ||
3335 | return true; | |
3336 | } | |
3337 | \f | |
3338 | /* Archive handling. ECOFF uses what appears to be a unique type of | |
3339 | archive header (which I call an armap). The byte ordering of the | |
3340 | armap and the contents are encoded in the name of the armap itself. | |
3341 | At least for now, we only support archives with the same byte | |
3342 | ordering in the armap and the contents. | |
3343 | ||
3344 | The first four bytes in the armap are the number of symbol | |
3345 | definitions. This is always a power of two. | |
3346 | ||
3347 | This is followed by the symbol definitions. Each symbol definition | |
3348 | occupies 8 bytes. The first four bytes are the offset from the | |
3349 | start of the armap strings to the null-terminated string naming | |
3350 | this symbol. The second four bytes are the file offset to the | |
3351 | archive member which defines this symbol. If the second four bytes | |
3352 | are 0, then this is not actually a symbol definition, and it should | |
3353 | be ignored. | |
3354 | ||
3355 | The symbols are hashed into the armap with a closed hashing scheme. | |
3356 | See the functions below for the details of the algorithm. | |
3357 | ||
3358 | We could use the hash table when looking up symbols in a library. | |
3359 | This would require a new BFD target entry point to replace the | |
3360 | bfd_get_next_mapent function used by the linker. | |
3361 | ||
3362 | After the symbol definitions comes four bytes holding the size of | |
3363 | the string table, followed by the string table itself. */ | |
3364 | ||
3365 | /* The name of an archive headers looks like this: | |
3366 | __________E[BL]E[BL]_ (with a trailing space). | |
3367 | The trailing space is changed to an X if the archive is changed to | |
48edba81 ILT |
3368 | indicate that the armap is out of date. |
3369 | ||
3370 | The Alpha seems to use ________64E[BL]E[BL]_. */ | |
dae31cf5 ILT |
3371 | |
3372 | #define ARMAP_BIG_ENDIAN 'B' | |
3373 | #define ARMAP_LITTLE_ENDIAN 'L' | |
3374 | #define ARMAP_MARKER 'E' | |
48edba81 | 3375 | #define ARMAP_START_LENGTH 10 |
dae31cf5 ILT |
3376 | #define ARMAP_HEADER_MARKER_INDEX 10 |
3377 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
3378 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
3379 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
3380 | #define ARMAP_END_INDEX 14 | |
3381 | #define ARMAP_END "_ " | |
3382 | ||
3383 | /* This is a magic number used in the hashing algorithm. */ | |
3384 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
3385 | ||
3386 | /* This returns the hash value to use for a string. It also sets | |
3387 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
3388 | is the number of entries in the hash table, and HLOG is the log | |
3389 | base 2 of SIZE. */ | |
3390 | ||
3391 | static unsigned int | |
3392 | ecoff_armap_hash (s, rehash, size, hlog) | |
3393 | CONST char *s; | |
3394 | unsigned int *rehash; | |
3395 | unsigned int size; | |
3396 | unsigned int hlog; | |
3397 | { | |
3398 | unsigned int hash; | |
3399 | ||
3400 | hash = *s++; | |
3401 | while (*s != '\0') | |
3402 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
3403 | hash *= ARMAP_HASH_MAGIC; | |
3404 | *rehash = (hash & (size - 1)) | 1; | |
3405 | return hash >> (32 - hlog); | |
3406 | } | |
3407 | ||
3408 | /* Read in the armap. */ | |
3409 | ||
3410 | boolean | |
3411 | ecoff_slurp_armap (abfd) | |
3412 | bfd *abfd; | |
3413 | { | |
3414 | char nextname[17]; | |
3415 | unsigned int i; | |
3416 | struct areltdata *mapdata; | |
3417 | bfd_size_type parsed_size; | |
3418 | char *raw_armap; | |
3419 | struct artdata *ardata; | |
3420 | unsigned int count; | |
3421 | char *raw_ptr; | |
3422 | struct symdef *symdef_ptr; | |
3423 | char *stringbase; | |
3424 | ||
3425 | /* Get the name of the first element. */ | |
3426 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
3427 | if (i == 0) | |
3428 | return true; | |
3429 | if (i != 16) | |
3430 | return false; | |
3431 | ||
3432 | bfd_seek (abfd, (file_ptr) -16, SEEK_CUR); | |
3433 | ||
8c11363a ILT |
3434 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a |
3435 | standard COFF armap. We could move the ECOFF armap stuff into | |
3436 | bfd_slurp_armap, but that seems inappropriate since no other | |
3437 | target uses this format. Instead, we check directly for a COFF | |
3438 | armap. */ | |
3439 | if (strncmp (nextname, "/ ", 16) == 0) | |
3440 | return bfd_slurp_armap (abfd); | |
3441 | ||
dae31cf5 | 3442 | /* See if the first element is an armap. */ |
48edba81 ILT |
3443 | if (strncmp (nextname, ecoff_backend (abfd)->armap_start, |
3444 | ARMAP_START_LENGTH) != 0 | |
dae31cf5 ILT |
3445 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER |
3446 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3447 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3448 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
3449 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3450 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3451 | || strncmp (nextname + ARMAP_END_INDEX, | |
3452 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3453 | { | |
3454 | bfd_has_map (abfd) = false; | |
3455 | return true; | |
3456 | } | |
3457 | ||
3458 | /* Make sure we have the right byte ordering. */ | |
3459 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3460 | ^ (abfd->xvec->header_byteorder_big_p != false)) | |
3461 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3462 | ^ (abfd->xvec->byteorder_big_p != false))) | |
3463 | { | |
3464 | bfd_error = wrong_format; | |
3465 | return false; | |
3466 | } | |
3467 | ||
3468 | /* Read in the armap. */ | |
3469 | ardata = bfd_ardata (abfd); | |
3470 | mapdata = snarf_ar_hdr (abfd); | |
3471 | if (mapdata == (struct areltdata *) NULL) | |
3472 | return false; | |
3473 | parsed_size = mapdata->parsed_size; | |
3474 | bfd_release (abfd, (PTR) mapdata); | |
3475 | ||
3476 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
3477 | if (raw_armap == (char *) NULL) | |
3478 | { | |
3479 | bfd_error = no_memory; | |
3480 | return false; | |
3481 | } | |
3482 | ||
3483 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
3484 | { | |
3485 | bfd_error = malformed_archive; | |
3486 | bfd_release (abfd, (PTR) raw_armap); | |
3487 | return false; | |
3488 | } | |
3489 | ||
3490 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); | |
3491 | ||
3492 | ardata->symdef_count = 0; | |
3493 | ardata->cache = (struct ar_cache *) NULL; | |
3494 | ||
48edba81 ILT |
3495 | /* This code used to overlay the symdefs over the raw archive data, |
3496 | but that doesn't work on a 64 bit host. */ | |
3497 | ||
e544ed4f | 3498 | stringbase = raw_armap + count * 8 + 8; |
dae31cf5 ILT |
3499 | |
3500 | #ifdef CHECK_ARMAP_HASH | |
3501 | { | |
3502 | unsigned int hlog; | |
3503 | ||
3504 | /* Double check that I have the hashing algorithm right by making | |
3505 | sure that every symbol can be looked up successfully. */ | |
3506 | hlog = 0; | |
3507 | for (i = 1; i < count; i <<= 1) | |
3508 | hlog++; | |
3509 | BFD_ASSERT (i == count); | |
3510 | ||
e544ed4f ILT |
3511 | raw_ptr = raw_armap + 4; |
3512 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3513 | { |
3514 | unsigned int name_offset, file_offset; | |
3515 | unsigned int hash, rehash, srch; | |
3516 | ||
3517 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
e544ed4f | 3518 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3519 | if (file_offset == 0) |
3520 | continue; | |
3521 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3522 | hlog); | |
3523 | if (hash == i) | |
3524 | continue; | |
3525 | ||
3526 | /* See if we can rehash to this location. */ | |
3527 | for (srch = (hash + rehash) & (count - 1); | |
3528 | srch != hash && srch != i; | |
3529 | srch = (srch + rehash) & (count - 1)) | |
e544ed4f | 3530 | BFD_ASSERT (bfd_h_get_32 (abfd, (PTR) (raw_armap + 8 + srch * 8)) |
dae31cf5 ILT |
3531 | != 0); |
3532 | BFD_ASSERT (srch == i); | |
3533 | } | |
3534 | } | |
3535 | ||
dae31cf5 ILT |
3536 | #endif /* CHECK_ARMAP_HASH */ |
3537 | ||
e544ed4f ILT |
3538 | raw_ptr = raw_armap + 4; |
3539 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3540 | if (bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)) != 0) | |
48edba81 ILT |
3541 | ++ardata->symdef_count; |
3542 | ||
3543 | symdef_ptr = ((struct symdef *) | |
3544 | bfd_alloc (abfd, | |
3545 | ardata->symdef_count * sizeof (struct symdef))); | |
3546 | ardata->symdefs = (carsym *) symdef_ptr; | |
3547 | ||
e544ed4f ILT |
3548 | raw_ptr = raw_armap + 4; |
3549 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3550 | { |
3551 | unsigned int name_offset, file_offset; | |
3552 | ||
e544ed4f | 3553 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3554 | if (file_offset == 0) |
3555 | continue; | |
48edba81 | 3556 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); |
dae31cf5 ILT |
3557 | symdef_ptr->s.name = stringbase + name_offset; |
3558 | symdef_ptr->file_offset = file_offset; | |
3559 | ++symdef_ptr; | |
dae31cf5 ILT |
3560 | } |
3561 | ||
3562 | ardata->first_file_filepos = bfd_tell (abfd); | |
3563 | /* Pad to an even boundary. */ | |
3564 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3565 | ||
3566 | bfd_has_map (abfd) = true; | |
3567 | ||
3568 | return true; | |
3569 | } | |
3570 | ||
3571 | /* Write out an armap. */ | |
3572 | ||
3573 | boolean | |
3574 | ecoff_write_armap (abfd, elength, map, orl_count, stridx) | |
3575 | bfd *abfd; | |
3576 | unsigned int elength; | |
3577 | struct orl *map; | |
3578 | unsigned int orl_count; | |
3579 | int stridx; | |
3580 | { | |
3581 | unsigned int hashsize, hashlog; | |
3582 | unsigned int symdefsize; | |
3583 | int padit; | |
3584 | unsigned int stringsize; | |
3585 | unsigned int mapsize; | |
3586 | file_ptr firstreal; | |
3587 | struct ar_hdr hdr; | |
3588 | struct stat statbuf; | |
3589 | unsigned int i; | |
e544ed4f | 3590 | bfd_byte temp[4]; |
dae31cf5 ILT |
3591 | bfd_byte *hashtable; |
3592 | bfd *current; | |
3593 | bfd *last_elt; | |
3594 | ||
3595 | /* Ultrix appears to use as a hash table size the least power of two | |
3596 | greater than twice the number of entries. */ | |
3597 | for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) | |
3598 | ; | |
3599 | hashsize = 1 << hashlog; | |
3600 | ||
e544ed4f | 3601 | symdefsize = hashsize * 8; |
dae31cf5 ILT |
3602 | padit = stridx % 2; |
3603 | stringsize = stridx + padit; | |
3604 | ||
3605 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
e544ed4f | 3606 | mapsize = symdefsize + stringsize + 8; |
dae31cf5 ILT |
3607 | |
3608 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3609 | ||
3610 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3611 | ||
3612 | /* Work out the ECOFF armap name. */ | |
48edba81 | 3613 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); |
dae31cf5 ILT |
3614 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; |
3615 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3616 | (abfd->xvec->header_byteorder_big_p | |
3617 | ? ARMAP_BIG_ENDIAN | |
3618 | : ARMAP_LITTLE_ENDIAN); | |
3619 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3620 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3621 | abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3622 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3623 | ||
3624 | /* Write the timestamp of the archive header to be just a little bit | |
3625 | later than the timestamp of the file, otherwise the linker will | |
3626 | complain that the index is out of date. Actually, the Ultrix | |
3627 | linker just checks the archive name; the GNU linker may check the | |
3628 | date. */ | |
3629 | stat (abfd->filename, &statbuf); | |
3630 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3631 | ||
3632 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3633 | armap. */ | |
3634 | hdr.ar_uid[0] = '0'; | |
3635 | hdr.ar_gid[0] = '0'; | |
3636 | hdr.ar_mode[0] = '0'; | |
3637 | ||
3638 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3639 | ||
3640 | hdr.ar_fmag[0] = '`'; | |
3641 | hdr.ar_fmag[1] = '\n'; | |
3642 | ||
3643 | /* Turn all null bytes in the header into spaces. */ | |
3644 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3645 | if (((char *)(&hdr))[i] == '\0') | |
3646 | (((char *)(&hdr))[i]) = ' '; | |
3647 | ||
3648 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) | |
3649 | != sizeof (struct ar_hdr)) | |
3650 | return false; | |
3651 | ||
3652 | bfd_h_put_32 (abfd, hashsize, temp); | |
e544ed4f | 3653 | if (bfd_write (temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3654 | return false; |
3655 | ||
3656 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); | |
3657 | ||
3658 | current = abfd->archive_head; | |
3659 | last_elt = current; | |
3660 | for (i = 0; i < orl_count; i++) | |
3661 | { | |
3662 | unsigned int hash, rehash; | |
3663 | ||
3664 | /* Advance firstreal to the file position of this archive | |
3665 | element. */ | |
3666 | if (((bfd *) map[i].pos) != last_elt) | |
3667 | { | |
3668 | do | |
3669 | { | |
3670 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3671 | firstreal += firstreal % 2; | |
3672 | current = current->next; | |
3673 | } | |
3674 | while (current != (bfd *) map[i].pos); | |
3675 | } | |
3676 | ||
3677 | last_elt = current; | |
3678 | ||
3679 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); | |
e544ed4f | 3680 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (hash * 8) + 4)) != 0) |
dae31cf5 ILT |
3681 | { |
3682 | unsigned int srch; | |
3683 | ||
3684 | /* The desired slot is already taken. */ | |
3685 | for (srch = (hash + rehash) & (hashsize - 1); | |
3686 | srch != hash; | |
3687 | srch = (srch + rehash) & (hashsize - 1)) | |
e544ed4f | 3688 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (srch * 8) + 4)) == 0) |
dae31cf5 ILT |
3689 | break; |
3690 | ||
3691 | BFD_ASSERT (srch != hash); | |
3692 | ||
3693 | hash = srch; | |
3694 | } | |
3695 | ||
e544ed4f ILT |
3696 | bfd_h_put_32 (abfd, map[i].namidx, (PTR) (hashtable + hash * 8)); |
3697 | bfd_h_put_32 (abfd, firstreal, (PTR) (hashtable + hash * 8 + 4)); | |
dae31cf5 ILT |
3698 | } |
3699 | ||
3700 | if (bfd_write (hashtable, 1, symdefsize, abfd) != symdefsize) | |
3701 | return false; | |
3702 | ||
3703 | bfd_release (abfd, hashtable); | |
3704 | ||
3705 | /* Now write the strings. */ | |
3706 | bfd_h_put_32 (abfd, stringsize, temp); | |
e544ed4f | 3707 | if (bfd_write (temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3708 | return false; |
3709 | for (i = 0; i < orl_count; i++) | |
3710 | { | |
3711 | bfd_size_type len; | |
3712 | ||
3713 | len = strlen (*map[i].name) + 1; | |
3714 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3715 | return false; | |
3716 | } | |
3717 | ||
3718 | /* The spec sez this should be a newline. But in order to be | |
3719 | bug-compatible for DECstation ar we use a null. */ | |
3720 | if (padit) | |
3721 | { | |
3722 | if (bfd_write ("\0", 1, 1, abfd) != 1) | |
3723 | return false; | |
3724 | } | |
3725 | ||
3726 | return true; | |
3727 | } | |
3728 | ||
3729 | /* See whether this BFD is an archive. If it is, read in the armap | |
3730 | and the extended name table. */ | |
3731 | ||
3732 | bfd_target * | |
3733 | ecoff_archive_p (abfd) | |
3734 | bfd *abfd; | |
3735 | { | |
3736 | char armag[SARMAG + 1]; | |
3737 | ||
3738 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG | |
3739 | || strncmp (armag, ARMAG, SARMAG) != 0) | |
3740 | { | |
3741 | bfd_error = wrong_format; | |
3742 | return (bfd_target *) NULL; | |
3743 | } | |
3744 | ||
3745 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3746 | involves a cast, we can't do it as the left operand of | |
3747 | assignment. */ | |
3748 | abfd->tdata.aout_ar_data = | |
3749 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3750 | ||
3751 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3752 | { | |
3753 | bfd_error = no_memory; | |
3754 | return (bfd_target *) NULL; | |
3755 | } | |
3756 | ||
3757 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
3758 | ||
3759 | if (ecoff_slurp_armap (abfd) == false | |
3760 | || ecoff_slurp_extended_name_table (abfd) == false) | |
3761 | { | |
3762 | bfd_release (abfd, bfd_ardata (abfd)); | |
3763 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
3764 | return (bfd_target *) NULL; | |
3765 | } | |
3766 | ||
3767 | return abfd->xvec; | |
3768 | } |