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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 | ||
a7853216 | 47 | static int ecoff_get_magic PARAMS ((bfd *abfd)); |
dae31cf5 ILT |
48 | static void ecoff_set_symbol_info PARAMS ((bfd *abfd, SYMR *ecoff_sym, |
49 | asymbol *asym, int ext, | |
50 | asymbol **indirect_ptr_ptr)); | |
51 | static void ecoff_emit_aggregate PARAMS ((bfd *abfd, char *string, | |
52 | RNDXR *rndx, long isym, | |
53 | CONST char *which)); | |
54 | static char *ecoff_type_to_string PARAMS ((bfd *abfd, union aux_ext *aux_ptr, | |
55 | unsigned int indx, int bigendian)); | |
dae31cf5 ILT |
56 | static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section, |
57 | asymbol **symbols)); | |
58 | static void ecoff_clear_output_flags PARAMS ((bfd *abfd)); | |
59 | static boolean ecoff_rel PARAMS ((bfd *output_bfd, bfd_seclet_type *seclet, | |
60 | asection *output_section, PTR data, | |
61 | boolean relocateable)); | |
62 | static boolean ecoff_dump_seclet PARAMS ((bfd *abfd, bfd_seclet_type *seclet, | |
63 | asection *section, PTR data, | |
64 | boolean relocateable)); | |
65 | static long ecoff_add_string PARAMS ((bfd *output_bfd, FDR *fdr, | |
66 | CONST char *string, boolean external)); | |
67 | static boolean ecoff_get_debug PARAMS ((bfd *output_bfd, | |
68 | bfd_seclet_type *seclet, | |
69 | asection *section, | |
70 | boolean relocateable)); | |
71 | static void ecoff_compute_section_file_positions PARAMS ((bfd *abfd)); | |
72 | static unsigned int ecoff_armap_hash PARAMS ((CONST char *s, | |
73 | unsigned int *rehash, | |
74 | unsigned int size, | |
75 | unsigned int hlog)); | |
76 | \f | |
dae31cf5 ILT |
77 | /* This stuff is somewhat copied from coffcode.h. */ |
78 | ||
79 | static asection bfd_debug_section = { "*DEBUG*" }; | |
80 | ||
48edba81 ILT |
81 | /* Create an ECOFF object. */ |
82 | ||
83 | boolean | |
84 | ecoff_mkobject (abfd) | |
85 | bfd *abfd; | |
86 | { | |
87 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
88 | bfd_zalloc (abfd, sizeof (ecoff_data_type))); | |
89 | if (abfd->tdata.ecoff_obj_data == NULL) | |
90 | { | |
91 | bfd_error = no_memory; | |
92 | return false; | |
93 | } | |
94 | ||
95 | /* Always create a .scommon section for every BFD. This is a hack so | |
96 | that the linker has something to attach scSCommon symbols to. */ | |
a7853216 ILT |
97 | if (bfd_make_section (abfd, SCOMMON) == NULL) |
98 | return false; | |
48edba81 ILT |
99 | |
100 | return true; | |
101 | } | |
102 | ||
a7853216 ILT |
103 | /* This is a hook called by coff_real_object_p to create any backend |
104 | specific information. */ | |
105 | ||
106 | PTR | |
107 | ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
108 | bfd *abfd; | |
109 | PTR filehdr; | |
110 | PTR aouthdr; | |
111 | { | |
112 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
113 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; | |
114 | ecoff_data_type *ecoff; | |
115 | asection *regsec; | |
116 | ||
117 | if (ecoff_mkobject (abfd) == false) | |
118 | return NULL; | |
119 | ||
120 | ecoff = ecoff_data (abfd); | |
121 | ecoff->gp_size = 8; | |
122 | ecoff->sym_filepos = internal_f->f_symptr; | |
123 | ||
124 | /* Create the .reginfo section to give programs outside BFD a way to | |
125 | see the information stored in the a.out header. See the comment | |
126 | in coff/ecoff.h. */ | |
127 | regsec = bfd_make_section (abfd, REGINFO); | |
128 | if (regsec == NULL) | |
129 | return NULL; | |
130 | ||
131 | if (internal_a != (struct internal_aouthdr *) NULL) | |
132 | { | |
133 | int i; | |
134 | ||
135 | ecoff->text_start = internal_a->text_start; | |
136 | ecoff->text_end = internal_a->text_start + internal_a->tsize; | |
137 | ecoff->gp = internal_a->gp_value; | |
138 | ecoff->gprmask = internal_a->gprmask; | |
139 | for (i = 0; i < 4; i++) | |
140 | ecoff->cprmask[i] = internal_a->cprmask[i]; | |
141 | ecoff->fprmask = internal_a->fprmask; | |
142 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) | |
143 | abfd->flags |= D_PAGED; | |
144 | } | |
145 | ||
146 | /* It turns out that no special action is required by the MIPS or | |
147 | Alpha ECOFF backends. They have different information in the | |
148 | a.out header, but we just copy it all (e.g., gprmask, cprmask and | |
149 | fprmask) and let the swapping routines ensure that only relevant | |
150 | information is written out. */ | |
151 | ||
152 | return (PTR) ecoff; | |
153 | } | |
154 | ||
dae31cf5 ILT |
155 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ |
156 | ||
157 | asection * | |
158 | ecoff_make_section_hook (abfd, name) | |
159 | bfd *abfd; | |
160 | char *name; | |
161 | { | |
162 | return (asection *) NULL; | |
163 | } | |
164 | ||
165 | /* Initialize a new section. */ | |
166 | ||
167 | boolean | |
168 | ecoff_new_section_hook (abfd, section) | |
169 | bfd *abfd; | |
170 | asection *section; | |
171 | { | |
172 | section->alignment_power = abfd->xvec->align_power_min; | |
173 | ||
174 | if (strcmp (section->name, _TEXT) == 0) | |
175 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
176 | else if (strcmp (section->name, _DATA) == 0 | |
177 | || strcmp (section->name, _SDATA) == 0) | |
178 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
179 | else if (strcmp (section->name, _RDATA) == 0 | |
180 | || strcmp (section->name, _LIT8) == 0 | |
181 | || strcmp (section->name, _LIT4) == 0) | |
182 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
183 | else if (strcmp (section->name, _BSS) == 0 | |
184 | || strcmp (section->name, _SBSS) == 0) | |
185 | section->flags |= SEC_ALLOC; | |
a7853216 ILT |
186 | else if (strcmp (section->name, REGINFO) == 0) |
187 | { | |
188 | section->flags |= SEC_HAS_CONTENTS | SEC_NEVER_LOAD; | |
189 | section->_raw_size = sizeof (struct ecoff_reginfo); | |
190 | } | |
dae31cf5 ILT |
191 | |
192 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
193 | uncertain about .init on some systems and I don't know how shared | |
194 | libraries work. */ | |
195 | ||
196 | return true; | |
197 | } | |
198 | ||
a7853216 ILT |
199 | /* Determine the machine architecture and type. This is called from |
200 | the generic COFF routines. It is the inverse of ecoff_get_magic, | |
201 | below. This could be an ECOFF backend routine, with one version | |
202 | for each target, but there aren't all that many ECOFF targets. */ | |
dae31cf5 ILT |
203 | |
204 | boolean | |
205 | ecoff_set_arch_mach_hook (abfd, filehdr) | |
206 | bfd *abfd; | |
207 | PTR filehdr; | |
208 | { | |
209 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
210 | enum bfd_architecture arch; | |
a7853216 | 211 | unsigned long mach; |
dae31cf5 ILT |
212 | |
213 | switch (internal_f->f_magic) | |
214 | { | |
215 | case MIPS_MAGIC_1: | |
216 | case MIPS_MAGIC_LITTLE: | |
217 | case MIPS_MAGIC_BIG: | |
218 | arch = bfd_arch_mips; | |
a7853216 ILT |
219 | mach = 3000; |
220 | break; | |
221 | ||
222 | case MIPS_MAGIC_LITTLE2: | |
223 | case MIPS_MAGIC_BIG2: | |
224 | /* MIPS ISA level 2: the r6000 */ | |
225 | arch = bfd_arch_mips; | |
226 | mach = 6000; | |
227 | break; | |
228 | ||
229 | case MIPS_MAGIC_LITTLE3: | |
230 | case MIPS_MAGIC_BIG3: | |
231 | /* MIPS ISA level 3: the r4000 */ | |
232 | arch = bfd_arch_mips; | |
233 | mach = 4000; | |
dae31cf5 ILT |
234 | break; |
235 | ||
236 | case ALPHA_MAGIC: | |
237 | arch = bfd_arch_alpha; | |
a7853216 | 238 | mach = 0; |
dae31cf5 ILT |
239 | break; |
240 | ||
241 | default: | |
242 | arch = bfd_arch_obscure; | |
a7853216 | 243 | mach = 0; |
dae31cf5 ILT |
244 | break; |
245 | } | |
246 | ||
a7853216 ILT |
247 | return bfd_default_set_arch_mach (abfd, arch, mach); |
248 | } | |
dae31cf5 | 249 | |
a7853216 ILT |
250 | /* Get the magic number to use based on the architecture and machine. |
251 | This is the inverse of ecoff_set_arch_mach_hook, above. */ | |
252 | ||
253 | static int | |
254 | ecoff_get_magic (abfd) | |
255 | bfd *abfd; | |
256 | { | |
257 | int big, little; | |
258 | ||
259 | switch (bfd_get_arch (abfd)) | |
260 | { | |
261 | case bfd_arch_mips: | |
262 | switch (bfd_get_mach (abfd)) | |
263 | { | |
264 | default: | |
265 | case 0: | |
266 | case 3000: | |
267 | big = MIPS_MAGIC_BIG; | |
268 | little = MIPS_MAGIC_LITTLE; | |
269 | break; | |
270 | ||
271 | case 6000: | |
272 | big = MIPS_MAGIC_BIG2; | |
273 | little = MIPS_MAGIC_LITTLE2; | |
274 | break; | |
275 | ||
276 | case 4000: | |
277 | big = MIPS_MAGIC_BIG3; | |
278 | little = MIPS_MAGIC_LITTLE3; | |
279 | break; | |
280 | } | |
281 | ||
282 | return abfd->xvec->byteorder_big_p ? big : little; | |
283 | ||
284 | case bfd_arch_alpha: | |
285 | return ALPHA_MAGIC; | |
286 | ||
287 | default: | |
288 | abort (); | |
289 | return 0; | |
290 | } | |
dae31cf5 ILT |
291 | } |
292 | ||
293 | /* Get the section s_flags to use for a section. */ | |
294 | ||
295 | long | |
296 | ecoff_sec_to_styp_flags (name, flags) | |
297 | CONST char *name; | |
298 | flagword flags; | |
299 | { | |
300 | long styp; | |
301 | ||
302 | styp = 0; | |
303 | ||
304 | if (strcmp (name, _TEXT) == 0) | |
305 | styp = STYP_TEXT; | |
306 | else if (strcmp (name, _DATA) == 0) | |
307 | styp = STYP_DATA; | |
308 | else if (strcmp (name, _SDATA) == 0) | |
309 | styp = STYP_SDATA; | |
310 | else if (strcmp (name, _RDATA) == 0) | |
311 | styp = STYP_RDATA; | |
312 | else if (strcmp (name, _LIT8) == 0) | |
313 | styp = STYP_LIT8; | |
314 | else if (strcmp (name, _LIT4) == 0) | |
315 | styp = STYP_LIT4; | |
316 | else if (strcmp (name, _BSS) == 0) | |
317 | styp = STYP_BSS; | |
318 | else if (strcmp (name, _SBSS) == 0) | |
319 | styp = STYP_SBSS; | |
320 | else if (strcmp (name, _INIT) == 0) | |
321 | styp = STYP_ECOFF_INIT; | |
a7853216 ILT |
322 | else if (strcmp (name, _FINI) == 0) |
323 | styp = STYP_ECOFF_FINI; | |
dae31cf5 ILT |
324 | else if (flags & SEC_CODE) |
325 | styp = STYP_TEXT; | |
326 | else if (flags & SEC_DATA) | |
327 | styp = STYP_DATA; | |
328 | else if (flags & SEC_READONLY) | |
329 | styp = STYP_RDATA; | |
330 | else if (flags & SEC_LOAD) | |
331 | styp = STYP_REG; | |
332 | else | |
333 | styp = STYP_BSS; | |
334 | ||
335 | if (flags & SEC_NEVER_LOAD) | |
336 | styp |= STYP_NOLOAD; | |
337 | ||
338 | return styp; | |
339 | } | |
340 | ||
341 | /* Get the BFD flags to use for a section. */ | |
342 | ||
343 | flagword | |
344 | ecoff_styp_to_sec_flags (abfd, hdr) | |
345 | bfd *abfd; | |
346 | PTR hdr; | |
347 | { | |
348 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
349 | long styp_flags = internal_s->s_flags; | |
350 | flagword sec_flags=0; | |
351 | ||
352 | if (styp_flags & STYP_NOLOAD) | |
353 | sec_flags |= SEC_NEVER_LOAD; | |
354 | ||
355 | /* For 386 COFF, at least, an unloadable text or data section is | |
356 | actually a shared library section. */ | |
357 | if ((styp_flags & STYP_TEXT) | |
a7853216 ILT |
358 | || (styp_flags & STYP_ECOFF_INIT) |
359 | || (styp_flags & STYP_ECOFF_FINI)) | |
dae31cf5 ILT |
360 | { |
361 | if (sec_flags & SEC_NEVER_LOAD) | |
362 | sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; | |
363 | else | |
364 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
365 | } | |
366 | else if ((styp_flags & STYP_DATA) | |
367 | || (styp_flags & STYP_RDATA) | |
368 | || (styp_flags & STYP_SDATA)) | |
369 | { | |
370 | if (sec_flags & SEC_NEVER_LOAD) | |
371 | sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; | |
372 | else | |
373 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
374 | if (styp_flags & STYP_RDATA) | |
375 | sec_flags |= SEC_READONLY; | |
376 | } | |
377 | else if ((styp_flags & STYP_BSS) | |
378 | || (styp_flags & STYP_SBSS)) | |
379 | { | |
380 | sec_flags |= SEC_ALLOC; | |
381 | } | |
382 | else if (styp_flags & STYP_INFO) | |
383 | { | |
384 | sec_flags |= SEC_NEVER_LOAD; | |
385 | } | |
386 | else if ((styp_flags & STYP_LIT8) | |
387 | || (styp_flags & STYP_LIT4)) | |
388 | { | |
389 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
390 | } | |
391 | else | |
392 | { | |
393 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
394 | } | |
395 | ||
396 | return sec_flags; | |
397 | } | |
398 | \f | |
399 | /* Routines to swap auxiliary information in and out. I am assuming | |
400 | that the auxiliary information format is always going to be target | |
401 | independent. */ | |
402 | ||
403 | /* Swap in a type information record. | |
404 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
405 | info comes from the file header record (fh-fBigendian). */ | |
406 | ||
407 | void | |
408 | ecoff_swap_tir_in (bigend, ext_copy, intern) | |
409 | int bigend; | |
410 | struct tir_ext *ext_copy; | |
411 | TIR *intern; | |
412 | { | |
413 | struct tir_ext ext[1]; | |
414 | ||
415 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
416 | ||
417 | /* now the fun stuff... */ | |
418 | if (bigend) { | |
419 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_BIG); | |
420 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_BIG); | |
421 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_BIG) | |
422 | >> TIR_BITS1_BT_SH_BIG; | |
423 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_BIG) | |
424 | >> TIR_BITS_TQ4_SH_BIG; | |
425 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_BIG) | |
426 | >> TIR_BITS_TQ5_SH_BIG; | |
427 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_BIG) | |
428 | >> TIR_BITS_TQ0_SH_BIG; | |
429 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_BIG) | |
430 | >> TIR_BITS_TQ1_SH_BIG; | |
431 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_BIG) | |
432 | >> TIR_BITS_TQ2_SH_BIG; | |
433 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_BIG) | |
434 | >> TIR_BITS_TQ3_SH_BIG; | |
435 | } else { | |
436 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_LITTLE); | |
437 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_LITTLE); | |
438 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_LITTLE) | |
439 | >> TIR_BITS1_BT_SH_LITTLE; | |
440 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_LITTLE) | |
441 | >> TIR_BITS_TQ4_SH_LITTLE; | |
442 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_LITTLE) | |
443 | >> TIR_BITS_TQ5_SH_LITTLE; | |
444 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_LITTLE) | |
445 | >> TIR_BITS_TQ0_SH_LITTLE; | |
446 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_LITTLE) | |
447 | >> TIR_BITS_TQ1_SH_LITTLE; | |
448 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_LITTLE) | |
449 | >> TIR_BITS_TQ2_SH_LITTLE; | |
450 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_LITTLE) | |
451 | >> TIR_BITS_TQ3_SH_LITTLE; | |
452 | } | |
453 | ||
454 | #ifdef TEST | |
455 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
456 | abort(); | |
457 | #endif | |
458 | } | |
459 | ||
460 | /* Swap out a type information record. | |
461 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
462 | info comes from the file header record (fh-fBigendian). */ | |
463 | ||
464 | void | |
465 | ecoff_swap_tir_out (bigend, intern_copy, ext) | |
466 | int bigend; | |
467 | TIR *intern_copy; | |
468 | struct tir_ext *ext; | |
469 | { | |
470 | TIR intern[1]; | |
471 | ||
472 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
473 | ||
474 | /* now the fun stuff... */ | |
475 | if (bigend) { | |
476 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_BIG : 0) | |
477 | | (intern->continued ? TIR_BITS1_CONTINUED_BIG : 0) | |
478 | | ((intern->bt << TIR_BITS1_BT_SH_BIG) | |
479 | & TIR_BITS1_BT_BIG)); | |
480 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_BIG) | |
481 | & TIR_BITS_TQ4_BIG) | |
482 | | ((intern->tq5 << TIR_BITS_TQ5_SH_BIG) | |
483 | & TIR_BITS_TQ5_BIG)); | |
484 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_BIG) | |
485 | & TIR_BITS_TQ0_BIG) | |
486 | | ((intern->tq1 << TIR_BITS_TQ1_SH_BIG) | |
487 | & TIR_BITS_TQ1_BIG)); | |
488 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_BIG) | |
489 | & TIR_BITS_TQ2_BIG) | |
490 | | ((intern->tq3 << TIR_BITS_TQ3_SH_BIG) | |
491 | & TIR_BITS_TQ3_BIG)); | |
492 | } else { | |
493 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_LITTLE : 0) | |
494 | | (intern->continued ? TIR_BITS1_CONTINUED_LITTLE : 0) | |
495 | | ((intern->bt << TIR_BITS1_BT_SH_LITTLE) | |
496 | & TIR_BITS1_BT_LITTLE)); | |
497 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_LITTLE) | |
498 | & TIR_BITS_TQ4_LITTLE) | |
499 | | ((intern->tq5 << TIR_BITS_TQ5_SH_LITTLE) | |
500 | & TIR_BITS_TQ5_LITTLE)); | |
501 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_LITTLE) | |
502 | & TIR_BITS_TQ0_LITTLE) | |
503 | | ((intern->tq1 << TIR_BITS_TQ1_SH_LITTLE) | |
504 | & TIR_BITS_TQ1_LITTLE)); | |
505 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_LITTLE) | |
506 | & TIR_BITS_TQ2_LITTLE) | |
507 | | ((intern->tq3 << TIR_BITS_TQ3_SH_LITTLE) | |
508 | & TIR_BITS_TQ3_LITTLE)); | |
509 | } | |
510 | ||
511 | #ifdef TEST | |
512 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
513 | abort(); | |
514 | #endif | |
515 | } | |
516 | ||
517 | /* Swap in a relative symbol record. BIGEND says whether it is in | |
518 | big-endian or little-endian format.*/ | |
519 | ||
520 | void | |
521 | ecoff_swap_rndx_in (bigend, ext_copy, intern) | |
522 | int bigend; | |
523 | struct rndx_ext *ext_copy; | |
524 | RNDXR *intern; | |
525 | { | |
526 | struct rndx_ext ext[1]; | |
527 | ||
528 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
529 | ||
530 | /* now the fun stuff... */ | |
531 | if (bigend) { | |
532 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_BIG) | |
533 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_BIG) | |
534 | >> RNDX_BITS1_RFD_SH_BIG); | |
535 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_BIG) | |
536 | << RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
537 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_BIG) | |
538 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_BIG); | |
539 | } else { | |
540 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_LITTLE) | |
541 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_LITTLE) | |
542 | << RNDX_BITS1_RFD_SH_LEFT_LITTLE); | |
543 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_LITTLE) | |
544 | >> RNDX_BITS1_INDEX_SH_LITTLE) | |
545 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_LITTLE) | |
546 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_LITTLE); | |
547 | } | |
548 | ||
549 | #ifdef TEST | |
550 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
551 | abort(); | |
552 | #endif | |
553 | } | |
554 | ||
555 | /* Swap out a relative symbol record. BIGEND says whether it is in | |
556 | big-endian or little-endian format.*/ | |
557 | ||
558 | void | |
559 | ecoff_swap_rndx_out (bigend, intern_copy, ext) | |
560 | int bigend; | |
561 | RNDXR *intern_copy; | |
562 | struct rndx_ext *ext; | |
563 | { | |
564 | RNDXR intern[1]; | |
565 | ||
566 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
567 | ||
568 | /* now the fun stuff... */ | |
569 | if (bigend) { | |
570 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_BIG; | |
571 | ext->r_bits[1] = (((intern->rfd << RNDX_BITS1_RFD_SH_BIG) | |
572 | & RNDX_BITS1_RFD_BIG) | |
573 | | ((intern->index >> RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
574 | & RNDX_BITS1_INDEX_BIG)); | |
575 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_BIG; | |
576 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_BIG; | |
577 | } else { | |
578 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_LITTLE; | |
579 | ext->r_bits[1] = (((intern->rfd >> RNDX_BITS1_RFD_SH_LEFT_LITTLE) | |
580 | & RNDX_BITS1_RFD_LITTLE) | |
581 | | ((intern->index << RNDX_BITS1_INDEX_SH_LITTLE) | |
582 | & RNDX_BITS1_INDEX_LITTLE)); | |
583 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_LITTLE; | |
584 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_LITTLE; | |
585 | } | |
586 | ||
587 | #ifdef TEST | |
588 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
589 | abort(); | |
590 | #endif | |
591 | } | |
592 | \f | |
593 | /* Read in and swap the important symbolic information for an ECOFF | |
594 | object file. This is called by gdb. */ | |
595 | ||
596 | boolean | |
597 | ecoff_slurp_symbolic_info (abfd) | |
598 | bfd *abfd; | |
599 | { | |
600 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
601 | bfd_size_type external_hdr_size; | |
602 | HDRR *internal_symhdr; | |
603 | bfd_size_type raw_base; | |
604 | bfd_size_type raw_size; | |
605 | PTR raw; | |
606 | bfd_size_type external_fdr_size; | |
607 | char *fraw_src; | |
608 | char *fraw_end; | |
609 | struct fdr *fdr_ptr; | |
a7853216 ILT |
610 | bfd_size_type raw_end; |
611 | bfd_size_type cb_end; | |
dae31cf5 ILT |
612 | |
613 | /* Check whether we've already gotten it, and whether there's any to | |
614 | get. */ | |
615 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
616 | return true; | |
617 | if (ecoff_data (abfd)->sym_filepos == 0) | |
618 | { | |
619 | bfd_get_symcount (abfd) = 0; | |
620 | return true; | |
621 | } | |
622 | ||
623 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
624 | as read from the file header, but on ECOFF this is always the | |
625 | size of the symbolic information header. It would be cleaner to | |
626 | handle this when we first read the file in coffgen.c. */ | |
627 | external_hdr_size = backend->external_hdr_size; | |
628 | if (bfd_get_symcount (abfd) != external_hdr_size) | |
629 | { | |
630 | bfd_error = bad_value; | |
631 | return false; | |
632 | } | |
633 | ||
634 | /* Read the symbolic information header. */ | |
635 | raw = (PTR) alloca (external_hdr_size); | |
636 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 | |
637 | || (bfd_read (raw, external_hdr_size, 1, abfd) | |
638 | != external_hdr_size)) | |
639 | { | |
640 | bfd_error = system_call_error; | |
641 | return false; | |
642 | } | |
643 | internal_symhdr = &ecoff_data (abfd)->symbolic_header; | |
644 | (*backend->swap_hdr_in) (abfd, raw, internal_symhdr); | |
645 | ||
48edba81 | 646 | if (internal_symhdr->magic != backend->sym_magic) |
dae31cf5 ILT |
647 | { |
648 | bfd_error = bad_value; | |
649 | return false; | |
650 | } | |
651 | ||
652 | /* Now we can get the correct number of symbols. */ | |
653 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
654 | + internal_symhdr->iextMax); | |
655 | ||
656 | /* Read all the symbolic information at once. */ | |
657 | raw_base = ecoff_data (abfd)->sym_filepos + external_hdr_size; | |
658 | ||
a7853216 ILT |
659 | /* Alpha ecoff makes the determination of raw_size difficult. It has |
660 | an undocumented debug data section between the symhdr and the first | |
661 | documented section. And the ordering of the sections varies between | |
662 | statically and dynamically linked executables. | |
663 | If bfd supports SEEK_END someday, this code could be simplified. */ | |
664 | ||
665 | raw_end = 0; | |
666 | ||
667 | #define UPDATE_RAW_END(start, count, size) \ | |
668 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ | |
669 | if (cb_end > raw_end) \ | |
670 | raw_end = cb_end | |
671 | ||
672 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); | |
673 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->external_dnr_size); | |
674 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->external_pdr_size); | |
675 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->external_sym_size); | |
676 | UPDATE_RAW_END (cbOptOffset, ioptMax, backend->external_opt_size); | |
677 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); | |
678 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); | |
679 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); | |
680 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->external_fdr_size); | |
681 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->external_rfd_size); | |
682 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->external_ext_size); | |
683 | ||
684 | #undef UPDATE_RAW_END | |
685 | ||
686 | raw_size = raw_end - raw_base; | |
dae31cf5 ILT |
687 | if (raw_size == 0) |
688 | { | |
689 | ecoff_data (abfd)->sym_filepos = 0; | |
690 | return true; | |
691 | } | |
692 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
693 | if (raw == NULL) | |
694 | { | |
695 | bfd_error = no_memory; | |
696 | return false; | |
697 | } | |
698 | if (bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
699 | { | |
700 | bfd_error = system_call_error; | |
701 | bfd_release (abfd, raw); | |
702 | return false; | |
703 | } | |
704 | ||
705 | ecoff_data (abfd)->raw_size = raw_size; | |
706 | ecoff_data (abfd)->raw_syments = raw; | |
707 | ||
708 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
709 | #define FIX(off1, off2, type) \ | |
710 | if (internal_symhdr->off1 == 0) \ | |
711 | ecoff_data (abfd)->off2 = (type) NULL; \ | |
712 | else \ | |
713 | ecoff_data (abfd)->off2 = (type) ((char *) raw \ | |
714 | + internal_symhdr->off1 \ | |
715 | - raw_base) | |
716 | FIX (cbLineOffset, line, unsigned char *); | |
717 | FIX (cbDnOffset, external_dnr, PTR); | |
718 | FIX (cbPdOffset, external_pdr, PTR); | |
719 | FIX (cbSymOffset, external_sym, PTR); | |
720 | FIX (cbOptOffset, external_opt, PTR); | |
721 | FIX (cbAuxOffset, external_aux, union aux_ext *); | |
722 | FIX (cbSsOffset, ss, char *); | |
723 | FIX (cbSsExtOffset, ssext, char *); | |
724 | FIX (cbFdOffset, external_fdr, PTR); | |
725 | FIX (cbRfdOffset, external_rfd, PTR); | |
726 | FIX (cbExtOffset, external_ext, PTR); | |
727 | #undef FIX | |
728 | ||
729 | /* I don't want to always swap all the data, because it will just | |
730 | waste time and most programs will never look at it. The only | |
731 | time the linker needs most of the debugging information swapped | |
732 | is when linking big-endian and little-endian MIPS object files | |
733 | together, which is not a common occurrence. | |
734 | ||
735 | We need to look at the fdr to deal with a lot of information in | |
736 | the symbols, so we swap them here. */ | |
737 | ecoff_data (abfd)->fdr = | |
738 | (struct fdr *) bfd_alloc (abfd, | |
739 | (internal_symhdr->ifdMax * | |
740 | sizeof (struct fdr))); | |
741 | if (ecoff_data (abfd)->fdr == NULL) | |
742 | { | |
743 | bfd_error = no_memory; | |
744 | return false; | |
745 | } | |
746 | external_fdr_size = backend->external_fdr_size; | |
747 | fdr_ptr = ecoff_data (abfd)->fdr; | |
748 | fraw_src = (char *) ecoff_data (abfd)->external_fdr; | |
749 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; | |
750 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
751 | (*backend->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); | |
752 | ||
753 | return true; | |
754 | } | |
755 | \f | |
756 | /* ECOFF symbol table routines. The ECOFF symbol table is described | |
757 | in gcc/mips-tfile.c. */ | |
758 | ||
759 | /* ECOFF uses two common sections. One is the usual one, and the | |
760 | other is for small objects. All the small objects are kept | |
761 | together, and then referenced via the gp pointer, which yields | |
762 | faster assembler code. This is what we use for the small common | |
763 | section. */ | |
764 | static asection ecoff_scom_section; | |
765 | static asymbol ecoff_scom_symbol; | |
766 | static asymbol *ecoff_scom_symbol_ptr; | |
767 | ||
768 | /* Create an empty symbol. */ | |
769 | ||
770 | asymbol * | |
771 | ecoff_make_empty_symbol (abfd) | |
772 | bfd *abfd; | |
773 | { | |
774 | ecoff_symbol_type *new; | |
775 | ||
776 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
777 | if (new == (ecoff_symbol_type *) NULL) | |
778 | { | |
779 | bfd_error = no_memory; | |
780 | return (asymbol *) NULL; | |
781 | } | |
782 | memset (new, 0, sizeof *new); | |
783 | new->symbol.section = (asection *) NULL; | |
784 | new->fdr = (FDR *) NULL; | |
785 | new->local = false; | |
786 | new->native = NULL; | |
787 | new->symbol.the_bfd = abfd; | |
788 | return &new->symbol; | |
789 | } | |
790 | ||
791 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
792 | ||
793 | static void | |
794 | ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, indirect_ptr_ptr) | |
795 | bfd *abfd; | |
796 | SYMR *ecoff_sym; | |
797 | asymbol *asym; | |
798 | int ext; | |
799 | asymbol **indirect_ptr_ptr; | |
800 | { | |
801 | asym->the_bfd = abfd; | |
802 | asym->value = ecoff_sym->value; | |
803 | asym->section = &bfd_debug_section; | |
804 | asym->udata = NULL; | |
805 | ||
806 | /* An indirect symbol requires two consecutive stabs symbols. */ | |
807 | if (*indirect_ptr_ptr != (asymbol *) NULL) | |
808 | { | |
809 | BFD_ASSERT (ECOFF_IS_STAB (ecoff_sym)); | |
810 | ||
811 | /* @@ Stuffing pointers into integers is a no-no. | |
812 | We can usually get away with it if the integer is | |
813 | large enough though. */ | |
814 | if (sizeof (asym) > sizeof (bfd_vma)) | |
815 | abort (); | |
816 | (*indirect_ptr_ptr)->value = (bfd_vma) asym; | |
817 | ||
818 | asym->flags = BSF_DEBUGGING; | |
819 | asym->section = &bfd_und_section; | |
820 | *indirect_ptr_ptr = NULL; | |
821 | return; | |
822 | } | |
823 | ||
824 | if (ECOFF_IS_STAB (ecoff_sym) | |
825 | && (ECOFF_UNMARK_STAB (ecoff_sym->index) | N_EXT) == (N_INDR | N_EXT)) | |
826 | { | |
827 | asym->flags = BSF_DEBUGGING | BSF_INDIRECT; | |
828 | asym->section = &bfd_ind_section; | |
829 | /* Pass this symbol on to the next call to this function. */ | |
830 | *indirect_ptr_ptr = asym; | |
831 | return; | |
832 | } | |
833 | ||
834 | /* Most symbol types are just for debugging. */ | |
835 | switch (ecoff_sym->st) | |
836 | { | |
837 | case stGlobal: | |
838 | case stStatic: | |
839 | case stLabel: | |
840 | case stProc: | |
841 | case stStaticProc: | |
842 | break; | |
843 | case stNil: | |
844 | if (ECOFF_IS_STAB (ecoff_sym)) | |
845 | { | |
846 | asym->flags = BSF_DEBUGGING; | |
847 | return; | |
848 | } | |
849 | break; | |
850 | default: | |
851 | asym->flags = BSF_DEBUGGING; | |
852 | return; | |
853 | } | |
854 | ||
855 | if (ext) | |
856 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
857 | else | |
858 | asym->flags = BSF_LOCAL; | |
859 | switch (ecoff_sym->sc) | |
860 | { | |
861 | case scNil: | |
862 | /* Used for compiler generated labels. Leave them in the | |
863 | debugging section, and mark them as local. If BSF_DEBUGGING | |
864 | is set, then nm does not display them for some reason. If no | |
865 | flags are set then the linker whines about them. */ | |
866 | asym->flags = BSF_LOCAL; | |
867 | break; | |
868 | case scText: | |
869 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
870 | asym->value -= asym->section->vma; | |
871 | break; | |
872 | case scData: | |
873 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
874 | asym->value -= asym->section->vma; | |
875 | break; | |
876 | case scBss: | |
70bec8b8 ILT |
877 | asym->section = bfd_make_section_old_way (abfd, ".bss"); |
878 | asym->value -= asym->section->vma; | |
dae31cf5 ILT |
879 | break; |
880 | case scRegister: | |
881 | asym->flags = BSF_DEBUGGING; | |
882 | break; | |
883 | case scAbs: | |
884 | asym->section = &bfd_abs_section; | |
885 | break; | |
886 | case scUndefined: | |
887 | asym->section = &bfd_und_section; | |
888 | asym->flags = 0; | |
889 | asym->value = 0; | |
890 | break; | |
891 | case scCdbLocal: | |
892 | case scBits: | |
893 | case scCdbSystem: | |
894 | case scRegImage: | |
895 | case scInfo: | |
896 | case scUserStruct: | |
897 | asym->flags = BSF_DEBUGGING; | |
898 | break; | |
899 | case scSData: | |
900 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
901 | asym->value -= asym->section->vma; | |
902 | break; | |
903 | case scSBss: | |
904 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); | |
70bec8b8 | 905 | asym->value -= asym->section->vma; |
dae31cf5 ILT |
906 | break; |
907 | case scRData: | |
908 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
909 | asym->value -= asym->section->vma; | |
910 | break; | |
911 | case scVar: | |
912 | asym->flags = BSF_DEBUGGING; | |
913 | break; | |
914 | case scCommon: | |
915 | if (asym->value > ecoff_data (abfd)->gp_size) | |
916 | { | |
917 | asym->section = &bfd_com_section; | |
918 | asym->flags = 0; | |
919 | break; | |
920 | } | |
921 | /* Fall through. */ | |
922 | case scSCommon: | |
923 | if (ecoff_scom_section.name == NULL) | |
924 | { | |
925 | /* Initialize the small common section. */ | |
926 | ecoff_scom_section.name = SCOMMON; | |
927 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
928 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
929 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
930 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
931 | ecoff_scom_symbol.name = SCOMMON; | |
932 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
933 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
934 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
935 | } | |
936 | asym->section = &ecoff_scom_section; | |
937 | asym->flags = 0; | |
938 | break; | |
939 | case scVarRegister: | |
940 | case scVariant: | |
941 | asym->flags = BSF_DEBUGGING; | |
942 | break; | |
943 | case scSUndefined: | |
944 | asym->section = &bfd_und_section; | |
945 | asym->flags = 0; | |
946 | asym->value = 0; | |
947 | break; | |
948 | case scInit: | |
949 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
950 | asym->value -= asym->section->vma; | |
951 | break; | |
952 | case scBasedVar: | |
953 | case scXData: | |
954 | case scPData: | |
955 | asym->flags = BSF_DEBUGGING; | |
956 | break; | |
957 | case scFini: | |
958 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
959 | asym->value -= asym->section->vma; | |
960 | break; | |
961 | default: | |
962 | break; | |
963 | } | |
964 | ||
965 | /* Look for special constructors symbols and make relocation entries | |
966 | in a special construction section. These are produced by the | |
967 | -fgnu-linker argument to g++. */ | |
968 | if (ECOFF_IS_STAB (ecoff_sym)) | |
969 | { | |
970 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) | |
971 | { | |
972 | default: | |
973 | break; | |
974 | ||
975 | case N_SETA: | |
976 | case N_SETT: | |
977 | case N_SETD: | |
978 | case N_SETB: | |
979 | { | |
980 | const char *name; | |
981 | asection *section; | |
982 | arelent_chain *reloc_chain; | |
983 | unsigned int bitsize; | |
dae31cf5 ILT |
984 | |
985 | /* Get a section with the same name as the symbol (usually | |
986 | __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the | |
987 | name ___CTOR_LIST (three underscores). We need | |
988 | __CTOR_LIST (two underscores), since ECOFF doesn't use | |
989 | a leading underscore. This should be handled by gcc, | |
990 | but instead we do it here. Actually, this should all | |
991 | be done differently anyhow. */ | |
992 | name = bfd_asymbol_name (asym); | |
993 | if (name[0] == '_' && name[1] == '_' && name[2] == '_') | |
994 | { | |
995 | ++name; | |
996 | asym->name = name; | |
997 | } | |
998 | section = bfd_get_section_by_name (abfd, name); | |
999 | if (section == (asection *) NULL) | |
1000 | { | |
1001 | char *copy; | |
1002 | ||
1003 | copy = (char *) bfd_alloc (abfd, strlen (name) + 1); | |
1004 | strcpy (copy, name); | |
1005 | section = bfd_make_section (abfd, copy); | |
1006 | } | |
1007 | ||
1008 | /* Build a reloc pointing to this constructor. */ | |
1009 | reloc_chain = | |
1010 | (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain)); | |
1011 | reloc_chain->relent.sym_ptr_ptr = | |
1012 | bfd_get_section (asym)->symbol_ptr_ptr; | |
1013 | reloc_chain->relent.address = section->_raw_size; | |
1014 | reloc_chain->relent.addend = asym->value; | |
8f46bac8 ILT |
1015 | reloc_chain->relent.howto = |
1016 | ecoff_backend (abfd)->constructor_reloc; | |
dae31cf5 ILT |
1017 | |
1018 | /* Set up the constructor section to hold the reloc. */ | |
1019 | section->flags = SEC_CONSTRUCTOR; | |
1020 | ++section->reloc_count; | |
1021 | ||
1022 | /* Constructor sections must be rounded to a boundary | |
1023 | based on the bitsize. These are not real sections-- | |
1024 | they are handled specially by the linker--so the ECOFF | |
1025 | 16 byte alignment restriction does not apply. */ | |
8f46bac8 | 1026 | bitsize = ecoff_backend (abfd)->constructor_bitsize; |
dae31cf5 ILT |
1027 | section->alignment_power = 1; |
1028 | while ((1 << section->alignment_power) < bitsize / 8) | |
1029 | ++section->alignment_power; | |
1030 | ||
1031 | reloc_chain->next = section->constructor_chain; | |
1032 | section->constructor_chain = reloc_chain; | |
1033 | section->_raw_size += bitsize / 8; | |
1034 | ||
1035 | /* Mark the symbol as a constructor. */ | |
1036 | asym->flags |= BSF_CONSTRUCTOR; | |
1037 | } | |
1038 | break; | |
1039 | } | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | /* Read an ECOFF symbol table. */ | |
1044 | ||
1045 | boolean | |
1046 | ecoff_slurp_symbol_table (abfd) | |
1047 | bfd *abfd; | |
1048 | { | |
1049 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1050 | const bfd_size_type external_ext_size = backend->external_ext_size; | |
1051 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
1052 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
1053 | = backend->swap_ext_in; | |
1054 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
1055 | = backend->swap_sym_in; | |
1056 | bfd_size_type internal_size; | |
1057 | ecoff_symbol_type *internal; | |
1058 | ecoff_symbol_type *internal_ptr; | |
1059 | asymbol *indirect_ptr; | |
1060 | char *eraw_src; | |
1061 | char *eraw_end; | |
1062 | FDR *fdr_ptr; | |
1063 | FDR *fdr_end; | |
1064 | ||
1065 | /* If we've already read in the symbol table, do nothing. */ | |
1066 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
1067 | return true; | |
1068 | ||
1069 | /* Get the symbolic information. */ | |
1070 | if (ecoff_slurp_symbolic_info (abfd) == false) | |
1071 | return false; | |
1072 | if (bfd_get_symcount (abfd) == 0) | |
1073 | return true; | |
1074 | ||
1075 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
1076 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
1077 | if (internal == NULL) | |
1078 | { | |
1079 | bfd_error = no_memory; | |
1080 | return false; | |
1081 | } | |
1082 | ||
1083 | internal_ptr = internal; | |
1084 | indirect_ptr = NULL; | |
1085 | eraw_src = (char *) ecoff_data (abfd)->external_ext; | |
1086 | eraw_end = (eraw_src | |
1087 | + (ecoff_data (abfd)->symbolic_header.iextMax | |
1088 | * external_ext_size)); | |
1089 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) | |
1090 | { | |
1091 | EXTR internal_esym; | |
1092 | ||
1093 | (*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym); | |
1094 | internal_ptr->symbol.name = (ecoff_data (abfd)->ssext | |
1095 | + internal_esym.asym.iss); | |
1096 | ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
1097 | &internal_ptr->symbol, 1, &indirect_ptr); | |
48edba81 ILT |
1098 | /* The alpha uses a negative ifd field for section symbols. */ |
1099 | if (internal_esym.ifd >= 0) | |
1100 | internal_ptr->fdr = ecoff_data (abfd)->fdr + internal_esym.ifd; | |
1101 | else | |
1102 | internal_ptr->fdr = NULL; | |
dae31cf5 ILT |
1103 | internal_ptr->local = false; |
1104 | internal_ptr->native = (PTR) eraw_src; | |
1105 | } | |
1106 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1107 | ||
1108 | /* The local symbols must be accessed via the fdr's, because the | |
1109 | string and aux indices are relative to the fdr information. */ | |
1110 | fdr_ptr = ecoff_data (abfd)->fdr; | |
1111 | fdr_end = fdr_ptr + ecoff_data (abfd)->symbolic_header.ifdMax; | |
1112 | for (; fdr_ptr < fdr_end; fdr_ptr++) | |
1113 | { | |
1114 | char *lraw_src; | |
1115 | char *lraw_end; | |
1116 | ||
1117 | lraw_src = ((char *) ecoff_data (abfd)->external_sym | |
1118 | + fdr_ptr->isymBase * external_sym_size); | |
1119 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; | |
1120 | for (; | |
1121 | lraw_src < lraw_end; | |
1122 | lraw_src += external_sym_size, internal_ptr++) | |
1123 | { | |
1124 | SYMR internal_sym; | |
1125 | ||
1126 | (*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym); | |
1127 | internal_ptr->symbol.name = (ecoff_data (abfd)->ss | |
1128 | + fdr_ptr->issBase | |
1129 | + internal_sym.iss); | |
1130 | ecoff_set_symbol_info (abfd, &internal_sym, | |
1131 | &internal_ptr->symbol, 0, &indirect_ptr); | |
1132 | internal_ptr->fdr = fdr_ptr; | |
1133 | internal_ptr->local = true; | |
1134 | internal_ptr->native = (PTR) lraw_src; | |
1135 | } | |
1136 | } | |
1137 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1138 | ||
1139 | ecoff_data (abfd)->canonical_symbols = internal; | |
1140 | ||
1141 | return true; | |
1142 | } | |
1143 | ||
1144 | /* Return the amount of space needed for the canonical symbols. */ | |
1145 | ||
1146 | unsigned int | |
1147 | ecoff_get_symtab_upper_bound (abfd) | |
1148 | bfd *abfd; | |
1149 | { | |
1150 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1151 | || bfd_get_symcount (abfd) == 0) | |
1152 | return 0; | |
1153 | ||
1154 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
1155 | } | |
1156 | ||
1157 | /* Get the canonicals symbols. */ | |
1158 | ||
1159 | unsigned int | |
1160 | ecoff_get_symtab (abfd, alocation) | |
1161 | bfd *abfd; | |
1162 | asymbol **alocation; | |
1163 | { | |
1164 | unsigned int counter = 0; | |
1165 | ecoff_symbol_type *symbase; | |
1166 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
1167 | ||
1168 | if (ecoff_slurp_symbol_table (abfd) == false | |
1169 | || bfd_get_symcount (abfd) == 0) | |
1170 | return 0; | |
1171 | ||
1172 | symbase = ecoff_data (abfd)->canonical_symbols; | |
1173 | while (counter < bfd_get_symcount (abfd)) | |
1174 | { | |
1175 | *(location++) = symbase++; | |
1176 | counter++; | |
1177 | } | |
1178 | *location++ = (ecoff_symbol_type *) NULL; | |
1179 | return bfd_get_symcount (abfd); | |
1180 | } | |
1181 | ||
1182 | /* Turn ECOFF type information into a printable string. | |
1183 | ecoff_emit_aggregate and ecoff_type_to_string are from | |
1184 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ | |
1185 | ||
1186 | /* Write aggregate information to a string. */ | |
1187 | ||
1188 | static void | |
1189 | ecoff_emit_aggregate (abfd, string, rndx, isym, which) | |
1190 | bfd *abfd; | |
1191 | char *string; | |
1192 | RNDXR *rndx; | |
1193 | long isym; | |
1194 | CONST char *which; | |
1195 | { | |
1196 | int ifd = rndx->rfd; | |
1197 | int indx = rndx->index; | |
1198 | int sym_base, ss_base; | |
1199 | CONST char *name; | |
1200 | ||
1201 | if (ifd == 0xfff) | |
1202 | ifd = isym; | |
1203 | ||
1204 | sym_base = ecoff_data (abfd)->fdr[ifd].isymBase; | |
1205 | ss_base = ecoff_data (abfd)->fdr[ifd].issBase; | |
1206 | ||
1207 | if (indx == indexNil) | |
1208 | name = "/* no name */"; | |
1209 | else | |
1210 | { | |
1211 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1212 | SYMR sym; | |
1213 | ||
1214 | indx += sym_base; | |
1215 | (*backend->swap_sym_in) (abfd, | |
1216 | ((char *) ecoff_data (abfd)->external_sym | |
1217 | + indx * backend->external_sym_size), | |
1218 | &sym); | |
1219 | name = ecoff_data (abfd)->ss + ss_base + sym.iss; | |
1220 | } | |
1221 | ||
1222 | sprintf (string, | |
1223 | "%s %s { ifd = %d, index = %d }", | |
1224 | which, name, ifd, | |
1225 | indx + ecoff_data (abfd)->symbolic_header.iextMax); | |
1226 | } | |
1227 | ||
1228 | /* Convert the type information to string format. */ | |
1229 | ||
1230 | static char * | |
1231 | ecoff_type_to_string (abfd, aux_ptr, indx, bigendian) | |
1232 | bfd *abfd; | |
1233 | union aux_ext *aux_ptr; | |
1234 | unsigned int indx; | |
1235 | int bigendian; | |
1236 | { | |
1237 | AUXU u; | |
1238 | struct qual { | |
1239 | unsigned int type; | |
1240 | int low_bound; | |
1241 | int high_bound; | |
1242 | int stride; | |
1243 | } qualifiers[7]; | |
1244 | ||
1245 | unsigned int basic_type; | |
1246 | int i; | |
1247 | static char buffer1[1024]; | |
1248 | static char buffer2[1024]; | |
1249 | char *p1 = buffer1; | |
1250 | char *p2 = buffer2; | |
1251 | RNDXR rndx; | |
1252 | ||
1253 | for (i = 0; i < 7; i++) | |
1254 | { | |
1255 | qualifiers[i].low_bound = 0; | |
1256 | qualifiers[i].high_bound = 0; | |
1257 | qualifiers[i].stride = 0; | |
1258 | } | |
1259 | ||
1260 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
1261 | return "-1 (no type)"; | |
1262 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
1263 | ||
1264 | basic_type = u.ti.bt; | |
1265 | qualifiers[0].type = u.ti.tq0; | |
1266 | qualifiers[1].type = u.ti.tq1; | |
1267 | qualifiers[2].type = u.ti.tq2; | |
1268 | qualifiers[3].type = u.ti.tq3; | |
1269 | qualifiers[4].type = u.ti.tq4; | |
1270 | qualifiers[5].type = u.ti.tq5; | |
1271 | qualifiers[6].type = tqNil; | |
1272 | ||
1273 | /* | |
1274 | * Go get the basic type. | |
1275 | */ | |
1276 | switch (basic_type) | |
1277 | { | |
1278 | case btNil: /* undefined */ | |
1279 | strcpy (p1, "nil"); | |
1280 | break; | |
1281 | ||
1282 | case btAdr: /* address - integer same size as pointer */ | |
1283 | strcpy (p1, "address"); | |
1284 | break; | |
1285 | ||
1286 | case btChar: /* character */ | |
1287 | strcpy (p1, "char"); | |
1288 | break; | |
1289 | ||
1290 | case btUChar: /* unsigned character */ | |
1291 | strcpy (p1, "unsigned char"); | |
1292 | break; | |
1293 | ||
1294 | case btShort: /* short */ | |
1295 | strcpy (p1, "short"); | |
1296 | break; | |
1297 | ||
1298 | case btUShort: /* unsigned short */ | |
1299 | strcpy (p1, "unsigned short"); | |
1300 | break; | |
1301 | ||
1302 | case btInt: /* int */ | |
1303 | strcpy (p1, "int"); | |
1304 | break; | |
1305 | ||
1306 | case btUInt: /* unsigned int */ | |
1307 | strcpy (p1, "unsigned int"); | |
1308 | break; | |
1309 | ||
1310 | case btLong: /* long */ | |
1311 | strcpy (p1, "long"); | |
1312 | break; | |
1313 | ||
1314 | case btULong: /* unsigned long */ | |
1315 | strcpy (p1, "unsigned long"); | |
1316 | break; | |
1317 | ||
1318 | case btFloat: /* float (real) */ | |
1319 | strcpy (p1, "float"); | |
1320 | break; | |
1321 | ||
1322 | case btDouble: /* Double (real) */ | |
1323 | strcpy (p1, "double"); | |
1324 | break; | |
1325 | ||
1326 | /* Structures add 1-2 aux words: | |
1327 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
1328 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1329 | ||
1330 | case btStruct: /* Structure (Record) */ | |
1331 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1332 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
1333 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1334 | "struct"); | |
1335 | indx++; /* skip aux words */ | |
1336 | break; | |
1337 | ||
1338 | /* Unions add 1-2 aux words: | |
1339 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1340 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1341 | ||
1342 | case btUnion: /* Union */ | |
1343 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1344 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
1345 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1346 | "union"); | |
1347 | indx++; /* skip aux words */ | |
1348 | break; | |
1349 | ||
1350 | /* Enumerations add 1-2 aux words: | |
1351 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1352 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1353 | ||
1354 | case btEnum: /* Enumeration */ | |
1355 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1356 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
1357 | AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), | |
1358 | "enum"); | |
1359 | indx++; /* skip aux words */ | |
1360 | break; | |
1361 | ||
1362 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1363 | strcpy (p1, "typedef"); | |
1364 | break; | |
1365 | ||
1366 | case btRange: /* subrange of int */ | |
1367 | strcpy (p1, "subrange"); | |
1368 | break; | |
1369 | ||
1370 | case btSet: /* pascal sets */ | |
1371 | strcpy (p1, "set"); | |
1372 | break; | |
1373 | ||
1374 | case btComplex: /* fortran complex */ | |
1375 | strcpy (p1, "complex"); | |
1376 | break; | |
1377 | ||
1378 | case btDComplex: /* fortran double complex */ | |
1379 | strcpy (p1, "double complex"); | |
1380 | break; | |
1381 | ||
1382 | case btIndirect: /* forward or unnamed typedef */ | |
1383 | strcpy (p1, "forward/unamed typedef"); | |
1384 | break; | |
1385 | ||
1386 | case btFixedDec: /* Fixed Decimal */ | |
1387 | strcpy (p1, "fixed decimal"); | |
1388 | break; | |
1389 | ||
1390 | case btFloatDec: /* Float Decimal */ | |
1391 | strcpy (p1, "float decimal"); | |
1392 | break; | |
1393 | ||
1394 | case btString: /* Varying Length Character String */ | |
1395 | strcpy (p1, "string"); | |
1396 | break; | |
1397 | ||
1398 | case btBit: /* Aligned Bit String */ | |
1399 | strcpy (p1, "bit"); | |
1400 | break; | |
1401 | ||
1402 | case btPicture: /* Picture */ | |
1403 | strcpy (p1, "picture"); | |
1404 | break; | |
1405 | ||
1406 | case btVoid: /* Void */ | |
1407 | strcpy (p1, "void"); | |
1408 | break; | |
1409 | ||
1410 | default: | |
1411 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
1412 | break; | |
1413 | } | |
1414 | ||
1415 | p1 += strlen (buffer1); | |
1416 | ||
1417 | /* | |
1418 | * If this is a bitfield, get the bitsize. | |
1419 | */ | |
1420 | if (u.ti.fBitfield) | |
1421 | { | |
1422 | int bitsize; | |
1423 | ||
1424 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1425 | sprintf (p1, " : %d", bitsize); | |
1426 | p1 += strlen (buffer1); | |
1427 | } | |
1428 | ||
1429 | ||
1430 | /* | |
1431 | * Deal with any qualifiers. | |
1432 | */ | |
1433 | if (qualifiers[0].type != tqNil) | |
1434 | { | |
1435 | /* | |
1436 | * Snarf up any array bounds in the correct order. Arrays | |
1437 | * store 5 successive words in the aux. table: | |
1438 | * word 0 RNDXR to type of the bounds (ie, int) | |
1439 | * word 1 Current file descriptor index | |
1440 | * word 2 low bound | |
1441 | * word 3 high bound (or -1 if []) | |
1442 | * word 4 stride size in bits | |
1443 | */ | |
1444 | for (i = 0; i < 7; i++) | |
1445 | { | |
1446 | if (qualifiers[i].type == tqArray) | |
1447 | { | |
1448 | qualifiers[i].low_bound = | |
1449 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1450 | qualifiers[i].high_bound = | |
1451 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1452 | qualifiers[i].stride = | |
1453 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1454 | indx += 5; | |
1455 | } | |
1456 | } | |
1457 | ||
1458 | /* | |
1459 | * Now print out the qualifiers. | |
1460 | */ | |
1461 | for (i = 0; i < 6; i++) | |
1462 | { | |
1463 | switch (qualifiers[i].type) | |
1464 | { | |
1465 | case tqNil: | |
1466 | case tqMax: | |
1467 | break; | |
1468 | ||
1469 | case tqPtr: | |
1470 | strcpy (p2, "ptr to "); | |
1471 | p2 += sizeof ("ptr to ")-1; | |
1472 | break; | |
1473 | ||
1474 | case tqVol: | |
1475 | strcpy (p2, "volatile "); | |
1476 | p2 += sizeof ("volatile ")-1; | |
1477 | break; | |
1478 | ||
1479 | case tqFar: | |
1480 | strcpy (p2, "far "); | |
1481 | p2 += sizeof ("far ")-1; | |
1482 | break; | |
1483 | ||
1484 | case tqProc: | |
1485 | strcpy (p2, "func. ret. "); | |
1486 | p2 += sizeof ("func. ret. "); | |
1487 | break; | |
1488 | ||
1489 | case tqArray: | |
1490 | { | |
1491 | int first_array = i; | |
1492 | int j; | |
1493 | ||
1494 | /* Print array bounds reversed (ie, in the order the C | |
1495 | programmer writes them). C is such a fun language.... */ | |
1496 | ||
1497 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1498 | i++; | |
1499 | ||
1500 | for (j = i; j >= first_array; j--) | |
1501 | { | |
1502 | strcpy (p2, "array ["); | |
1503 | p2 += sizeof ("array [")-1; | |
1504 | if (qualifiers[j].low_bound != 0) | |
1505 | sprintf (p2, | |
1506 | "%ld:%ld {%ld bits}", | |
1507 | (long) qualifiers[j].low_bound, | |
1508 | (long) qualifiers[j].high_bound, | |
1509 | (long) qualifiers[j].stride); | |
1510 | ||
1511 | else if (qualifiers[j].high_bound != -1) | |
1512 | sprintf (p2, | |
1513 | "%ld {%ld bits}", | |
1514 | (long) (qualifiers[j].high_bound + 1), | |
1515 | (long) (qualifiers[j].stride)); | |
1516 | ||
1517 | else | |
1518 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1519 | ||
1520 | p2 += strlen (p2); | |
1521 | strcpy (p2, "] of "); | |
1522 | p2 += sizeof ("] of ")-1; | |
1523 | } | |
1524 | } | |
1525 | break; | |
1526 | } | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | strcpy (p2, buffer1); | |
1531 | return buffer2; | |
1532 | } | |
1533 | ||
1534 | /* Return information about ECOFF symbol SYMBOL in RET. */ | |
1535 | ||
1536 | void | |
1537 | ecoff_get_symbol_info (abfd, symbol, ret) | |
1538 | bfd *abfd; /* Ignored. */ | |
1539 | asymbol *symbol; | |
1540 | symbol_info *ret; | |
1541 | { | |
1542 | bfd_symbol_info (symbol, ret); | |
1543 | } | |
1544 | ||
1545 | /* Print information about an ECOFF symbol. */ | |
1546 | ||
1547 | void | |
1548 | ecoff_print_symbol (abfd, filep, symbol, how) | |
1549 | bfd *abfd; | |
1550 | PTR filep; | |
1551 | asymbol *symbol; | |
1552 | bfd_print_symbol_type how; | |
1553 | { | |
1554 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1555 | FILE *file = (FILE *)filep; | |
1556 | ||
1557 | switch (how) | |
1558 | { | |
1559 | case bfd_print_symbol_name: | |
1560 | fprintf (file, "%s", symbol->name); | |
1561 | break; | |
1562 | case bfd_print_symbol_more: | |
1563 | if (ecoffsymbol (symbol)->local) | |
1564 | { | |
1565 | SYMR ecoff_sym; | |
1566 | ||
1567 | (*backend->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, | |
1568 | &ecoff_sym); | |
1569 | fprintf (file, "ecoff local "); | |
1570 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); | |
1571 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, | |
1572 | (unsigned) ecoff_sym.sc); | |
1573 | } | |
1574 | else | |
1575 | { | |
1576 | EXTR ecoff_ext; | |
1577 | ||
1578 | (*backend->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1579 | &ecoff_ext); | |
1580 | fprintf (file, "ecoff extern "); | |
1581 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1582 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, | |
1583 | (unsigned) ecoff_ext.asym.sc); | |
1584 | } | |
1585 | break; | |
1586 | case bfd_print_symbol_all: | |
1587 | /* Print out the symbols in a reasonable way */ | |
1588 | { | |
1589 | char type; | |
1590 | int pos; | |
1591 | EXTR ecoff_ext; | |
1592 | char jmptbl; | |
1593 | char cobol_main; | |
1594 | char weakext; | |
1595 | ||
1596 | if (ecoffsymbol (symbol)->local) | |
1597 | { | |
1598 | (*backend->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, | |
1599 | &ecoff_ext.asym); | |
1600 | type = 'l'; | |
1601 | pos = ((((char *) ecoffsymbol (symbol)->native | |
1602 | - (char *) ecoff_data (abfd)->external_sym) | |
1603 | / backend->external_sym_size) | |
1604 | + ecoff_data (abfd)->symbolic_header.iextMax); | |
1605 | jmptbl = ' '; | |
1606 | cobol_main = ' '; | |
1607 | weakext = ' '; | |
1608 | } | |
1609 | else | |
1610 | { | |
1611 | (*backend->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, | |
1612 | &ecoff_ext); | |
1613 | type = 'e'; | |
1614 | pos = (((char *) ecoffsymbol (symbol)->native | |
1615 | - (char *) ecoff_data (abfd)->external_ext) | |
1616 | / backend->external_ext_size); | |
1617 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; | |
1618 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1619 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1620 | } | |
1621 | ||
1622 | fprintf (file, "[%3d] %c ", | |
1623 | pos, type); | |
1624 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1625 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", | |
1626 | (unsigned) ecoff_ext.asym.st, | |
1627 | (unsigned) ecoff_ext.asym.sc, | |
1628 | (unsigned) ecoff_ext.asym.index, | |
1629 | jmptbl, cobol_main, weakext, | |
1630 | symbol->name); | |
1631 | ||
1632 | if (ecoffsymbol (symbol)->fdr != NULL | |
1633 | && ecoff_ext.asym.index != indexNil) | |
1634 | { | |
1635 | unsigned int indx; | |
1636 | int bigendian; | |
1637 | bfd_size_type sym_base; | |
1638 | union aux_ext *aux_base; | |
1639 | ||
1640 | indx = ecoff_ext.asym.index; | |
1641 | ||
1642 | /* sym_base is used to map the fdr relative indices which | |
1643 | appear in the file to the position number which we are | |
1644 | using. */ | |
1645 | sym_base = ecoffsymbol (symbol)->fdr->isymBase; | |
1646 | if (ecoffsymbol (symbol)->local) | |
1647 | sym_base += ecoff_data (abfd)->symbolic_header.iextMax; | |
1648 | ||
1649 | /* aux_base is the start of the aux entries for this file; | |
1650 | asym.index is an offset from this. */ | |
1651 | aux_base = (ecoff_data (abfd)->external_aux | |
1652 | + ecoffsymbol (symbol)->fdr->iauxBase); | |
1653 | ||
1654 | /* The aux entries are stored in host byte order; the | |
1655 | order is indicated by a bit in the fdr. */ | |
1656 | bigendian = ecoffsymbol (symbol)->fdr->fBigendian; | |
1657 | ||
1658 | /* This switch is basically from gcc/mips-tdump.c */ | |
1659 | switch (ecoff_ext.asym.st) | |
1660 | { | |
1661 | case stNil: | |
1662 | case stLabel: | |
1663 | break; | |
1664 | ||
1665 | case stFile: | |
1666 | case stBlock: | |
1667 | fprintf (file, "\n End+1 symbol: %ld", | |
1668 | (long) (indx + sym_base)); | |
1669 | break; | |
1670 | ||
1671 | case stEnd: | |
1672 | if (ecoff_ext.asym.sc == scText | |
1673 | || ecoff_ext.asym.sc == scInfo) | |
1674 | fprintf (file, "\n First symbol: %ld", | |
1675 | (long) (indx + sym_base)); | |
1676 | else | |
1677 | fprintf (file, "\n First symbol: %ld", | |
1678 | (long) (AUX_GET_ISYM (bigendian, | |
1679 | &aux_base[ecoff_ext.asym.index]) | |
1680 | + sym_base)); | |
1681 | break; | |
1682 | ||
1683 | case stProc: | |
1684 | case stStaticProc: | |
1685 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1686 | ; | |
1687 | else if (ecoffsymbol (symbol)->local) | |
1688 | fprintf (file, "\n End+1 symbol: %-7ld Type: %s", | |
1689 | (long) (AUX_GET_ISYM (bigendian, | |
1690 | &aux_base[ecoff_ext.asym.index]) | |
1691 | + sym_base), | |
1692 | ecoff_type_to_string (abfd, aux_base, indx + 1, | |
1693 | bigendian)); | |
1694 | else | |
1695 | fprintf (file, "\n Local symbol: %d", | |
1696 | (indx | |
1697 | + sym_base | |
1698 | + ecoff_data (abfd)->symbolic_header.iextMax)); | |
1699 | break; | |
1700 | ||
1701 | default: | |
1702 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1703 | fprintf (file, "\n Type: %s", | |
1704 | ecoff_type_to_string (abfd, aux_base, indx, | |
1705 | bigendian)); | |
1706 | break; | |
1707 | } | |
1708 | } | |
1709 | } | |
1710 | break; | |
1711 | } | |
1712 | } | |
1713 | \f | |
dae31cf5 ILT |
1714 | /* Read in the relocs for a section. */ |
1715 | ||
1716 | static boolean | |
1717 | ecoff_slurp_reloc_table (abfd, section, symbols) | |
1718 | bfd *abfd; | |
1719 | asection *section; | |
1720 | asymbol **symbols; | |
1721 | { | |
1722 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1723 | arelent *internal_relocs; | |
1724 | bfd_size_type external_reloc_size; | |
1725 | bfd_size_type external_relocs_size; | |
1726 | char *external_relocs; | |
1727 | arelent *rptr; | |
1728 | unsigned int i; | |
1729 | ||
1730 | if (section->relocation != (arelent *) NULL | |
1731 | || section->reloc_count == 0 | |
1732 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1733 | return true; | |
1734 | ||
1735 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1736 | return false; | |
1737 | ||
1738 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1739 | (sizeof (arelent) | |
1740 | * section->reloc_count)); | |
1741 | external_reloc_size = backend->external_reloc_size; | |
1742 | external_relocs_size = external_reloc_size * section->reloc_count; | |
1743 | external_relocs = (char *) bfd_alloc (abfd, external_relocs_size); | |
1744 | if (internal_relocs == (arelent *) NULL | |
1745 | || external_relocs == (char *) NULL) | |
1746 | { | |
1747 | bfd_error = no_memory; | |
1748 | return false; | |
1749 | } | |
1750 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1751 | return false; | |
1752 | if (bfd_read (external_relocs, 1, external_relocs_size, abfd) | |
1753 | != external_relocs_size) | |
1754 | { | |
1755 | bfd_error = system_call_error; | |
1756 | return false; | |
1757 | } | |
1758 | ||
1759 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1760 | { | |
1761 | struct internal_reloc intern; | |
1762 | ||
1763 | (*backend->swap_reloc_in) (abfd, | |
1764 | external_relocs + i * external_reloc_size, | |
1765 | &intern); | |
1766 | ||
dae31cf5 ILT |
1767 | if (intern.r_extern) |
1768 | { | |
1769 | /* r_symndx is an index into the external symbols. */ | |
1770 | BFD_ASSERT (intern.r_symndx >= 0 | |
1771 | && (intern.r_symndx | |
1772 | < ecoff_data (abfd)->symbolic_header.iextMax)); | |
1773 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; | |
1774 | rptr->addend = 0; | |
1775 | } | |
e544ed4f ILT |
1776 | else if (intern.r_symndx == RELOC_SECTION_NONE |
1777 | || intern.r_symndx == RELOC_SECTION_ABS) | |
1778 | { | |
1779 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1780 | rptr->addend = 0; | |
1781 | } | |
dae31cf5 ILT |
1782 | else |
1783 | { | |
1784 | CONST char *sec_name; | |
1785 | asection *sec; | |
1786 | ||
1787 | /* r_symndx is a section key. */ | |
1788 | switch (intern.r_symndx) | |
1789 | { | |
1790 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1791 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1792 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1793 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1794 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1795 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1796 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1797 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1798 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
8f46bac8 ILT |
1799 | case RELOC_SECTION_XDATA: sec_name = ".xdata"; break; |
1800 | case RELOC_SECTION_PDATA: sec_name = ".pdata"; break; | |
1801 | case RELOC_SECTION_LITA: sec_name = ".lita"; break; | |
dae31cf5 ILT |
1802 | default: abort (); |
1803 | } | |
1804 | ||
1805 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1806 | if (sec == (asection *) NULL) | |
e544ed4f | 1807 | abort (); |
dae31cf5 ILT |
1808 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; |
1809 | ||
1810 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
dae31cf5 ILT |
1811 | } |
1812 | ||
1813 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
dae31cf5 | 1814 | |
8f46bac8 ILT |
1815 | /* Let the backend select the howto field and do any other |
1816 | required processing. */ | |
1817 | (*backend->finish_reloc) (abfd, &intern, rptr); | |
dae31cf5 ILT |
1818 | } |
1819 | ||
1820 | bfd_release (abfd, external_relocs); | |
1821 | ||
1822 | section->relocation = internal_relocs; | |
1823 | ||
1824 | return true; | |
1825 | } | |
1826 | ||
1827 | /* Get a canonical list of relocs. */ | |
1828 | ||
1829 | unsigned int | |
1830 | ecoff_canonicalize_reloc (abfd, section, relptr, symbols) | |
1831 | bfd *abfd; | |
1832 | asection *section; | |
1833 | arelent **relptr; | |
1834 | asymbol **symbols; | |
1835 | { | |
1836 | unsigned int count; | |
1837 | ||
1838 | if (section->flags & SEC_CONSTRUCTOR) | |
1839 | { | |
1840 | arelent_chain *chain; | |
1841 | ||
1842 | /* This section has relocs made up by us, not the file, so take | |
1843 | them out of their chain and place them into the data area | |
1844 | provided. */ | |
1845 | for (count = 0, chain = section->constructor_chain; | |
1846 | count < section->reloc_count; | |
1847 | count++, chain = chain->next) | |
1848 | *relptr++ = &chain->relent; | |
1849 | } | |
1850 | else | |
1851 | { | |
1852 | arelent *tblptr; | |
1853 | ||
1854 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
1855 | return 0; | |
1856 | ||
1857 | tblptr = section->relocation; | |
1858 | if (tblptr == (arelent *) NULL) | |
1859 | return 0; | |
1860 | ||
1861 | for (count = 0; count < section->reloc_count; count++) | |
1862 | *relptr++ = tblptr++; | |
1863 | } | |
1864 | ||
1865 | *relptr = (arelent *) NULL; | |
1866 | ||
1867 | return section->reloc_count; | |
1868 | } | |
dae31cf5 ILT |
1869 | \f |
1870 | /* Provided a BFD, a section and an offset into the section, calculate | |
1871 | and return the name of the source file and the line nearest to the | |
1872 | wanted location. */ | |
1873 | ||
1874 | boolean | |
1875 | ecoff_find_nearest_line (abfd, | |
1876 | section, | |
1877 | ignore_symbols, | |
1878 | offset, | |
1879 | filename_ptr, | |
1880 | functionname_ptr, | |
1881 | retline_ptr) | |
1882 | bfd *abfd; | |
1883 | asection *section; | |
1884 | asymbol **ignore_symbols; | |
1885 | bfd_vma offset; | |
1886 | CONST char **filename_ptr; | |
1887 | CONST char **functionname_ptr; | |
1888 | unsigned int *retline_ptr; | |
1889 | { | |
1890 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1891 | FDR *fdr_ptr; | |
1892 | FDR *fdr_start; | |
1893 | FDR *fdr_end; | |
1894 | FDR *fdr_hold; | |
1895 | bfd_size_type external_pdr_size; | |
1896 | char *pdr_ptr; | |
1897 | char *pdr_end; | |
1898 | PDR pdr; | |
1899 | unsigned char *line_ptr; | |
1900 | unsigned char *line_end; | |
1901 | int lineno; | |
1902 | ||
1903 | /* If we're not in the .text section, we don't have any line | |
1904 | numbers. */ | |
1905 | if (strcmp (section->name, _TEXT) != 0 | |
1906 | || offset < ecoff_data (abfd)->text_start | |
1907 | || offset >= ecoff_data (abfd)->text_end) | |
1908 | return false; | |
1909 | ||
1910 | /* Make sure we have the FDR's. */ | |
1911 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1912 | || bfd_get_symcount (abfd) == 0) | |
1913 | return false; | |
1914 | ||
1915 | /* Each file descriptor (FDR) has a memory address. Here we track | |
1916 | down which FDR we want. The FDR's are stored in increasing | |
1917 | memory order. If speed is ever important, this can become a | |
1918 | binary search. We must ignore FDR's with no PDR entries; they | |
1919 | will have the adr of the FDR before or after them. */ | |
1920 | fdr_start = ecoff_data (abfd)->fdr; | |
1921 | fdr_end = fdr_start + ecoff_data (abfd)->symbolic_header.ifdMax; | |
1922 | fdr_hold = (FDR *) NULL; | |
1923 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
1924 | { | |
1925 | if (fdr_ptr->cpd == 0) | |
1926 | continue; | |
1927 | if (offset < fdr_ptr->adr) | |
1928 | break; | |
1929 | fdr_hold = fdr_ptr; | |
1930 | } | |
1931 | if (fdr_hold == (FDR *) NULL) | |
1932 | return false; | |
1933 | fdr_ptr = fdr_hold; | |
1934 | ||
1935 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
1936 | have an address, which is relative to the FDR address, and are | |
1937 | also stored in increasing memory order. */ | |
1938 | offset -= fdr_ptr->adr; | |
1939 | external_pdr_size = backend->external_pdr_size; | |
1940 | pdr_ptr = ((char *) ecoff_data (abfd)->external_pdr | |
1941 | + fdr_ptr->ipdFirst * external_pdr_size); | |
1942 | pdr_end = pdr_ptr + fdr_ptr->cpd * external_pdr_size; | |
1943 | (*backend->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); | |
1944 | ||
1945 | /* The address of the first PDR is an offset which applies to the | |
1946 | addresses of all the PDR's. */ | |
1947 | offset += pdr.adr; | |
1948 | ||
1949 | for (pdr_ptr += external_pdr_size; | |
1950 | pdr_ptr < pdr_end; | |
1951 | pdr_ptr += external_pdr_size) | |
1952 | { | |
1953 | (*backend->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); | |
1954 | if (offset < pdr.adr) | |
1955 | break; | |
1956 | } | |
1957 | ||
1958 | /* Now we can look for the actual line number. The line numbers are | |
1959 | stored in a very funky format, which I won't try to describe. | |
1960 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
1961 | we want; we need this to compute line_end. */ | |
1962 | line_end = ecoff_data (abfd)->line; | |
1963 | if (pdr_ptr == pdr_end) | |
1964 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
1965 | else | |
1966 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
1967 | ||
1968 | /* Now change pdr and pdr_ptr to the one we want. */ | |
1969 | pdr_ptr -= external_pdr_size; | |
1970 | (*backend->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); | |
1971 | ||
1972 | offset -= pdr.adr; | |
1973 | lineno = pdr.lnLow; | |
1974 | line_ptr = (ecoff_data (abfd)->line | |
1975 | + fdr_ptr->cbLineOffset | |
1976 | + pdr.cbLineOffset); | |
1977 | while (line_ptr < line_end) | |
1978 | { | |
1979 | int delta; | |
1980 | int count; | |
1981 | ||
1982 | delta = *line_ptr >> 4; | |
1983 | if (delta >= 0x8) | |
1984 | delta -= 0x10; | |
1985 | count = (*line_ptr & 0xf) + 1; | |
1986 | ++line_ptr; | |
1987 | if (delta == -8) | |
1988 | { | |
1989 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
1990 | if (delta >= 0x8000) | |
1991 | delta -= 0x10000; | |
1992 | line_ptr += 2; | |
1993 | } | |
1994 | lineno += delta; | |
1995 | if (offset < count * 4) | |
1996 | break; | |
1997 | offset -= count * 4; | |
1998 | } | |
1999 | ||
2000 | /* If fdr_ptr->rss is -1, then this file does not have full symbols, | |
2001 | at least according to gdb/mipsread.c. */ | |
2002 | if (fdr_ptr->rss == -1) | |
2003 | { | |
2004 | *filename_ptr = NULL; | |
2005 | if (pdr.isym == -1) | |
2006 | *functionname_ptr = NULL; | |
2007 | else | |
2008 | { | |
2009 | EXTR proc_ext; | |
2010 | ||
2011 | (*backend->swap_ext_in) (abfd, | |
2012 | ((char *) ecoff_data (abfd)->external_ext | |
2013 | + pdr.isym * backend->external_ext_size), | |
2014 | &proc_ext); | |
2015 | *functionname_ptr = ecoff_data (abfd)->ssext + proc_ext.asym.iss; | |
2016 | } | |
2017 | } | |
2018 | else | |
2019 | { | |
2020 | SYMR proc_sym; | |
2021 | ||
2022 | *filename_ptr = ecoff_data (abfd)->ss + fdr_ptr->issBase + fdr_ptr->rss; | |
2023 | (*backend->swap_sym_in) (abfd, | |
2024 | ((char *) ecoff_data (abfd)->external_sym | |
2025 | + ((fdr_ptr->isymBase + pdr.isym) | |
2026 | * backend->external_sym_size)), | |
2027 | &proc_sym); | |
2028 | *functionname_ptr = (ecoff_data (abfd)->ss | |
2029 | + fdr_ptr->issBase | |
2030 | + proc_sym.iss); | |
2031 | } | |
2032 | if (lineno == ilineNil) | |
2033 | lineno = 0; | |
2034 | *retline_ptr = lineno; | |
2035 | return true; | |
2036 | } | |
2037 | \f | |
2038 | /* We can't use the generic linking routines for ECOFF, because we | |
2039 | have to handle all the debugging information. The generic link | |
2040 | routine just works out the section contents and attaches a list of | |
2041 | symbols. | |
2042 | ||
2043 | We link by looping over all the seclets. We make two passes. On | |
2044 | the first we set the actual section contents and determine the size | |
2045 | of the debugging information. On the second we accumulate the | |
2046 | debugging information and write it out. | |
2047 | ||
2048 | This currently always accumulates the debugging information, which | |
2049 | is incorrect, because it ignores the -s and -S options of the | |
2050 | linker. The linker needs to be modified to give us that | |
2051 | information in a more useful format (currently it just provides a | |
2052 | list of symbols which should appear in the output file). */ | |
2053 | ||
2054 | /* Clear the output_has_begun flag for all the input BFD's. We use it | |
2055 | to avoid linking in the debugging information for a BFD more than | |
2056 | once. */ | |
2057 | ||
2058 | static void | |
2059 | ecoff_clear_output_flags (abfd) | |
2060 | bfd *abfd; | |
2061 | { | |
2062 | register asection *o; | |
2063 | register bfd_seclet_type *p; | |
2064 | ||
2065 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2066 | for (p = o->seclets_head; | |
2067 | p != (bfd_seclet_type *) NULL; | |
2068 | p = p->next) | |
2069 | if (p->type == bfd_indirect_seclet) | |
2070 | p->u.indirect.section->owner->output_has_begun = false; | |
2071 | } | |
2072 | ||
2073 | /* Handle an indirect seclet on the first pass. Set the contents of | |
2074 | the output section, and accumulate the debugging information if | |
2075 | any. */ | |
2076 | ||
2077 | static boolean | |
2078 | ecoff_rel (output_bfd, seclet, output_section, data, relocateable) | |
2079 | bfd *output_bfd; | |
2080 | bfd_seclet_type *seclet; | |
2081 | asection *output_section; | |
2082 | PTR data; | |
2083 | boolean relocateable; | |
2084 | { | |
2085 | bfd *input_bfd; | |
2086 | HDRR *output_symhdr; | |
2087 | HDRR *input_symhdr; | |
2088 | ||
2089 | if ((output_section->flags & SEC_HAS_CONTENTS) | |
2090 | && !(output_section->flags & SEC_NEVER_LOAD) | |
2091 | && (output_section->flags & SEC_LOAD) | |
2092 | && seclet->size) | |
2093 | { | |
2094 | data = (PTR) bfd_get_relocated_section_contents (output_bfd, | |
2095 | seclet, | |
2096 | data, | |
2097 | relocateable); | |
2098 | if (bfd_set_section_contents (output_bfd, | |
2099 | output_section, | |
2100 | data, | |
2101 | seclet->offset, | |
2102 | seclet->size) | |
2103 | == false) | |
2104 | { | |
2105 | abort(); | |
2106 | } | |
2107 | } | |
2108 | ||
2109 | input_bfd = seclet->u.indirect.section->owner; | |
2110 | ||
2111 | /* We want to figure out how much space will be required to | |
2112 | incorporate all the debugging information from input_bfd. We use | |
2113 | the output_has_begun field to avoid adding it in more than once. | |
2114 | The actual incorporation is done in the second pass, in | |
2115 | ecoff_get_debug. The code has to parallel that code in its | |
2116 | manipulations of output_symhdr. */ | |
2117 | ||
2118 | if (input_bfd->output_has_begun) | |
2119 | return true; | |
2120 | input_bfd->output_has_begun = true; | |
2121 | ||
2122 | output_symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2123 | ||
2124 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2125 | { | |
2126 | asymbol **symbols; | |
2127 | asymbol **sym_ptr; | |
2128 | asymbol **sym_end; | |
2129 | ||
2130 | /* We just accumulate local symbols from a non-ECOFF BFD. The | |
2131 | external symbols are handled separately. */ | |
2132 | ||
2133 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
2134 | get_symtab_upper_bound (input_bfd)); | |
2135 | if (symbols == (asymbol **) NULL) | |
2136 | { | |
2137 | bfd_error = no_memory; | |
2138 | return false; | |
2139 | } | |
2140 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2141 | ||
2142 | for (sym_ptr = symbols; sym_ptr < sym_end; sym_ptr++) | |
2143 | { | |
2144 | size_t len; | |
2145 | ||
2146 | len = strlen ((*sym_ptr)->name); | |
2147 | if (((*sym_ptr)->flags & BSF_EXPORT) == 0) | |
2148 | { | |
2149 | ++output_symhdr->isymMax; | |
2150 | output_symhdr->issMax += len + 1; | |
2151 | } | |
2152 | } | |
2153 | ||
2154 | bfd_release (output_bfd, (PTR) symbols); | |
2155 | ||
2156 | ++output_symhdr->ifdMax; | |
2157 | ||
2158 | return true; | |
2159 | } | |
2160 | ||
2161 | /* We simply add in the information from another ECOFF BFD. First | |
2162 | we make sure we have the symbolic information. */ | |
2163 | if (ecoff_slurp_symbol_table (input_bfd) == false) | |
2164 | return false; | |
2165 | if (bfd_get_symcount (input_bfd) == 0) | |
2166 | return true; | |
2167 | ||
2168 | input_symhdr = &ecoff_data (input_bfd)->symbolic_header; | |
2169 | ||
2170 | /* Figure out how much information we are going to be putting in. | |
2171 | The external symbols are handled separately. */ | |
2172 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2173 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2174 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2175 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2176 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2177 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2178 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2179 | output_symhdr->issMax += input_symhdr->issMax; | |
2180 | output_symhdr->ifdMax += input_symhdr->ifdMax; | |
2181 | ||
2182 | /* The RFD's are special, since we create them if needed. */ | |
2183 | if (input_symhdr->crfd > 0) | |
2184 | output_symhdr->crfd += input_symhdr->crfd; | |
2185 | else | |
2186 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2187 | ||
2188 | return true; | |
2189 | } | |
2190 | ||
2191 | /* Handle an arbitrary seclet on the first pass. */ | |
2192 | ||
2193 | static boolean | |
2194 | ecoff_dump_seclet (abfd, seclet, section, data, relocateable) | |
2195 | bfd *abfd; | |
2196 | bfd_seclet_type *seclet; | |
2197 | asection *section; | |
2198 | PTR data; | |
2199 | boolean relocateable; | |
2200 | { | |
2201 | switch (seclet->type) | |
2202 | { | |
2203 | case bfd_indirect_seclet: | |
2204 | /* The contents of this section come from another one somewhere | |
2205 | else. */ | |
2206 | return ecoff_rel (abfd, seclet, section, data, relocateable); | |
2207 | ||
2208 | case bfd_fill_seclet: | |
2209 | /* Fill in the section with fill.value. This is used to pad out | |
2210 | sections, but we must avoid padding the .bss section. */ | |
2211 | if ((section->flags & SEC_HAS_CONTENTS) == 0) | |
2212 | { | |
2213 | if (seclet->u.fill.value != 0) | |
2214 | abort (); | |
2215 | } | |
2216 | else | |
2217 | { | |
2218 | char *d = (char *) bfd_alloc (abfd, seclet->size); | |
2219 | unsigned int i; | |
2220 | boolean ret; | |
2221 | ||
2222 | for (i = 0; i < seclet->size; i+=2) | |
2223 | d[i] = seclet->u.fill.value >> 8; | |
2224 | for (i = 1; i < seclet->size; i+=2) | |
2225 | d[i] = seclet->u.fill.value; | |
2226 | ret = bfd_set_section_contents (abfd, section, d, seclet->offset, | |
2227 | seclet->size); | |
2228 | bfd_release (abfd, (PTR) d); | |
2229 | return ret; | |
2230 | } | |
2231 | break; | |
2232 | ||
2233 | default: | |
2234 | abort(); | |
2235 | } | |
2236 | ||
2237 | return true; | |
2238 | } | |
2239 | ||
2240 | /* Add a string to the debugging information we are accumulating for a | |
2241 | file. Return the offset from the fdr string base or from the | |
2242 | external string base. */ | |
2243 | ||
2244 | static long | |
2245 | ecoff_add_string (output_bfd, fdr, string, external) | |
2246 | bfd *output_bfd; | |
2247 | FDR *fdr; | |
2248 | CONST char *string; | |
2249 | boolean external; | |
2250 | { | |
2251 | HDRR *symhdr; | |
2252 | size_t len; | |
2253 | long ret; | |
2254 | ||
2255 | symhdr = &ecoff_data (output_bfd)->symbolic_header; | |
2256 | len = strlen (string); | |
2257 | if (external) | |
2258 | { | |
2259 | strcpy (ecoff_data (output_bfd)->ssext + symhdr->issExtMax, string); | |
2260 | ret = symhdr->issExtMax; | |
2261 | symhdr->issExtMax += len + 1; | |
2262 | } | |
2263 | else | |
2264 | { | |
2265 | strcpy (ecoff_data (output_bfd)->ss + symhdr->issMax, string); | |
2266 | ret = fdr->cbSs; | |
2267 | symhdr->issMax += len + 1; | |
2268 | fdr->cbSs += len + 1; | |
2269 | } | |
2270 | return ret; | |
2271 | } | |
2272 | ||
2273 | /* Accumulate the debugging information from an input section. */ | |
2274 | ||
2275 | static boolean | |
2276 | ecoff_get_debug (output_bfd, seclet, section, relocateable) | |
2277 | bfd *output_bfd; | |
2278 | bfd_seclet_type *seclet; | |
2279 | asection *section; | |
2280 | boolean relocateable; | |
2281 | { | |
2282 | const struct ecoff_backend_data * const backend = ecoff_backend (output_bfd); | |
2283 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
2284 | const bfd_size_type external_pdr_size = backend->external_pdr_size; | |
2285 | const bfd_size_type external_fdr_size = backend->external_fdr_size; | |
2286 | const bfd_size_type external_rfd_size = backend->external_rfd_size; | |
2287 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) | |
2288 | = backend->swap_sym_in; | |
2289 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) | |
2290 | = backend->swap_sym_out; | |
2291 | void (* const swap_pdr_in) PARAMS ((bfd *, PTR, PDR *)) | |
2292 | = backend->swap_pdr_in; | |
2293 | void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR)) | |
2294 | = backend->swap_fdr_out; | |
2295 | void (* const swap_rfd_out) PARAMS ((bfd *, const RFDT *, PTR)) | |
2296 | = backend->swap_rfd_out; | |
2297 | bfd *input_bfd; | |
2298 | HDRR *output_symhdr; | |
2299 | HDRR *input_symhdr; | |
2300 | ecoff_data_type *output_ecoff; | |
2301 | ecoff_data_type *input_ecoff; | |
2302 | unsigned int count; | |
2303 | char *sym_out; | |
2304 | ecoff_symbol_type *esym_ptr; | |
2305 | ecoff_symbol_type *esym_end; | |
2306 | FDR *fdr_ptr; | |
2307 | FDR *fdr_end; | |
2308 | char *fdr_out; | |
2309 | ||
2310 | input_bfd = seclet->u.indirect.section->owner; | |
2311 | ||
2312 | /* Don't get the information more than once. */ | |
2313 | if (input_bfd->output_has_begun) | |
2314 | return true; | |
2315 | input_bfd->output_has_begun = true; | |
2316 | ||
2317 | output_ecoff = ecoff_data (output_bfd); | |
2318 | output_symhdr = &output_ecoff->symbolic_header; | |
2319 | ||
2320 | if (input_bfd->xvec->flavour != bfd_target_ecoff_flavour) | |
2321 | { | |
2322 | FDR fdr; | |
2323 | asymbol **symbols; | |
2324 | asymbol **sym_ptr; | |
2325 | asymbol **sym_end; | |
2326 | ||
2327 | /* This is not an ECOFF BFD. Just gather the symbols. */ | |
2328 | ||
2329 | memset (&fdr, 0, sizeof fdr); | |
2330 | ||
2331 | fdr.adr = bfd_get_section_vma (output_bfd, section) + seclet->offset; | |
2332 | fdr.issBase = output_symhdr->issMax; | |
2333 | fdr.cbSs = 0; | |
2334 | fdr.rss = ecoff_add_string (output_bfd, | |
2335 | &fdr, | |
2336 | bfd_get_filename (input_bfd), | |
2337 | false); | |
2338 | fdr.isymBase = output_symhdr->isymMax; | |
2339 | ||
2340 | /* Get the local symbols from the input BFD. */ | |
2341 | symbols = (asymbol **) bfd_alloc (output_bfd, | |
2342 | get_symtab_upper_bound (input_bfd)); | |
2343 | if (symbols == (asymbol **) NULL) | |
2344 | { | |
2345 | bfd_error = no_memory; | |
2346 | return false; | |
2347 | } | |
2348 | sym_end = symbols + bfd_canonicalize_symtab (input_bfd, symbols); | |
2349 | ||
2350 | /* Handle the local symbols. Any external symbols are handled | |
2351 | separately. */ | |
2352 | fdr.csym = 0; | |
2353 | for (sym_ptr = symbols; sym_ptr != sym_end; sym_ptr++) | |
2354 | { | |
2355 | SYMR internal_sym; | |
2356 | ||
2357 | if (((*sym_ptr)->flags & BSF_EXPORT) != 0) | |
2358 | continue; | |
2359 | memset (&internal_sym, 0, sizeof internal_sym); | |
2360 | internal_sym.iss = ecoff_add_string (output_bfd, | |
2361 | &fdr, | |
2362 | (*sym_ptr)->name, | |
2363 | false); | |
2364 | ||
2365 | if (bfd_is_com_section ((*sym_ptr)->section) | |
2366 | || (*sym_ptr)->section == &bfd_und_section) | |
2367 | internal_sym.value = (*sym_ptr)->value; | |
2368 | else | |
2369 | internal_sym.value = ((*sym_ptr)->value | |
2370 | + (*sym_ptr)->section->output_offset | |
2371 | + (*sym_ptr)->section->output_section->vma); | |
2372 | internal_sym.st = stNil; | |
2373 | internal_sym.sc = scUndefined; | |
2374 | internal_sym.index = indexNil; | |
2375 | (*swap_sym_out) (output_bfd, &internal_sym, | |
2376 | ((char *) output_ecoff->external_sym | |
2377 | + output_symhdr->isymMax * external_sym_size)); | |
2378 | ++fdr.csym; | |
2379 | ++output_symhdr->isymMax; | |
2380 | } | |
2381 | ||
2382 | bfd_release (output_bfd, (PTR) symbols); | |
2383 | ||
2384 | /* Leave everything else in the FDR zeroed out. This will cause | |
2385 | the lang field to be langC. The fBigendian field will | |
2386 | indicate little endian format, but it doesn't matter because | |
2387 | it only applies to aux fields and there are none. */ | |
2388 | ||
2389 | (*swap_fdr_out) (output_bfd, &fdr, | |
2390 | ((char *) output_ecoff->external_fdr | |
2391 | + output_symhdr->ifdMax * external_fdr_size)); | |
2392 | ++output_symhdr->ifdMax; | |
2393 | return true; | |
2394 | } | |
2395 | ||
2396 | /* This is an ECOFF BFD. We want to grab the information from | |
2397 | input_bfd and attach it to output_bfd. */ | |
2398 | count = bfd_get_symcount (input_bfd); | |
2399 | if (count == 0) | |
2400 | return true; | |
2401 | input_ecoff = ecoff_data (input_bfd); | |
2402 | input_symhdr = &input_ecoff->symbolic_header; | |
2403 | ||
2404 | /* I think that it is more efficient to simply copy the debugging | |
2405 | information from the input BFD to the output BFD. Because ECOFF | |
2406 | uses relative pointers for most of the debugging information, | |
2407 | only a little of it has to be changed at all. */ | |
2408 | ||
2409 | /* Swap in the local symbols, adjust their values, and swap them out | |
2410 | again. The external symbols are handled separately. */ | |
2411 | sym_out = ((char *) output_ecoff->external_sym | |
2412 | + output_symhdr->isymMax * external_sym_size); | |
2413 | ||
2414 | esym_ptr = ecoff_data (input_bfd)->canonical_symbols; | |
2415 | esym_end = esym_ptr + count; | |
2416 | for (; esym_ptr < esym_end; esym_ptr++) | |
2417 | { | |
2418 | if (esym_ptr->local) | |
2419 | { | |
2420 | SYMR sym; | |
2421 | ||
2422 | (*swap_sym_in) (input_bfd, esym_ptr->native, &sym); | |
2423 | ||
2424 | /* If we're producing an executable, move common symbols | |
2425 | into bss. */ | |
2426 | if (relocateable == false) | |
2427 | { | |
2428 | if (sym.sc == scCommon) | |
2429 | sym.sc = scBss; | |
2430 | else if (sym.sc == scSCommon) | |
2431 | sym.sc = scSBss; | |
2432 | } | |
2433 | ||
2434 | if (! bfd_is_com_section (esym_ptr->symbol.section) | |
2435 | && (esym_ptr->symbol.flags & BSF_DEBUGGING) == 0 | |
2436 | && esym_ptr->symbol.section != &bfd_und_section) | |
2437 | sym.value = (esym_ptr->symbol.value | |
2438 | + esym_ptr->symbol.section->output_offset | |
2439 | + esym_ptr->symbol.section->output_section->vma); | |
2440 | (*swap_sym_out) (output_bfd, &sym, sym_out); | |
2441 | sym_out += external_sym_size; | |
2442 | } | |
2443 | } | |
2444 | ||
2445 | /* That should have accounted for all the local symbols in | |
2446 | input_bfd. */ | |
2447 | ||
2448 | /* Copy the information that does not need swapping. */ | |
2449 | memcpy (output_ecoff->line + output_symhdr->cbLine, | |
2450 | input_ecoff->line, | |
2451 | input_symhdr->cbLine * sizeof (unsigned char)); | |
2452 | memcpy (output_ecoff->external_aux + output_symhdr->iauxMax, | |
2453 | input_ecoff->external_aux, | |
2454 | input_symhdr->iauxMax * sizeof (union aux_ext)); | |
2455 | memcpy (output_ecoff->ss + output_symhdr->issMax, | |
2456 | input_ecoff->ss, | |
2457 | input_symhdr->issMax * sizeof (char)); | |
2458 | ||
2459 | /* Some of the information may need to be swapped. */ | |
2460 | if (output_bfd->xvec->header_byteorder_big_p | |
2461 | == input_bfd->xvec->header_byteorder_big_p) | |
2462 | { | |
2463 | /* The two BFD's have the same endianness, so memcpy will | |
2464 | suffice. */ | |
2465 | if (input_symhdr->idnMax > 0) | |
2466 | memcpy (((char *) output_ecoff->external_dnr | |
2467 | + output_symhdr->idnMax * backend->external_dnr_size), | |
2468 | input_ecoff->external_dnr, | |
2469 | input_symhdr->idnMax * backend->external_dnr_size); | |
2470 | if (input_symhdr->ipdMax > 0) | |
2471 | memcpy (((char *) output_ecoff->external_pdr | |
2472 | + output_symhdr->ipdMax * external_pdr_size), | |
2473 | input_ecoff->external_pdr, | |
2474 | input_symhdr->ipdMax * external_pdr_size); | |
2475 | if (input_symhdr->ioptMax > 0) | |
2476 | memcpy (((char *) output_ecoff->external_opt | |
2477 | + output_symhdr->ioptMax * backend->external_opt_size), | |
2478 | input_ecoff->external_opt, | |
2479 | input_symhdr->ioptMax * backend->external_opt_size); | |
2480 | } | |
2481 | else | |
2482 | { | |
2483 | bfd_size_type sz; | |
2484 | char *in; | |
2485 | char *end; | |
2486 | char *out; | |
2487 | ||
2488 | /* The two BFD's have different endianness, so we must swap | |
2489 | everything in and out. This code would always work, but it | |
2490 | would be slow in the normal case. */ | |
2491 | sz = backend->external_dnr_size; | |
2492 | in = (char *) input_ecoff->external_dnr; | |
2493 | end = in + input_symhdr->idnMax * sz; | |
2494 | out = (char *) output_ecoff->external_dnr + output_symhdr->idnMax * sz; | |
2495 | for (; in < end; in += sz, out += sz) | |
2496 | { | |
2497 | DNR dnr; | |
2498 | ||
2499 | (*backend->swap_dnr_in) (input_bfd, in, &dnr); | |
2500 | (*backend->swap_dnr_out) (output_bfd, &dnr, out); | |
2501 | } | |
2502 | ||
2503 | sz = external_pdr_size; | |
2504 | in = (char *) input_ecoff->external_pdr; | |
2505 | end = in + input_symhdr->ipdMax * sz; | |
2506 | out = (char *) output_ecoff->external_pdr + output_symhdr->ipdMax * sz; | |
2507 | for (; in < end; in += sz, out += sz) | |
2508 | { | |
2509 | PDR pdr; | |
2510 | ||
2511 | (*swap_pdr_in) (input_bfd, in, &pdr); | |
2512 | (*backend->swap_pdr_out) (output_bfd, &pdr, out); | |
2513 | } | |
2514 | ||
2515 | sz = backend->external_opt_size; | |
2516 | in = (char *) input_ecoff->external_opt; | |
2517 | end = in + input_symhdr->ioptMax * sz; | |
2518 | out = (char *) output_ecoff->external_opt + output_symhdr->ioptMax * sz; | |
2519 | for (; in < end; in += sz, out += sz) | |
2520 | { | |
2521 | OPTR opt; | |
2522 | ||
2523 | (*backend->swap_opt_in) (input_bfd, in, &opt); | |
2524 | (*backend->swap_opt_out) (output_bfd, &opt, out); | |
2525 | } | |
2526 | } | |
2527 | ||
2528 | /* Set ifdbase so that the external symbols know how to adjust their | |
2529 | ifd values. */ | |
2530 | input_ecoff->ifdbase = output_symhdr->ifdMax; | |
2531 | ||
2532 | fdr_ptr = input_ecoff->fdr; | |
2533 | fdr_end = fdr_ptr + input_symhdr->ifdMax; | |
2534 | fdr_out = ((char *) output_ecoff->external_fdr | |
2535 | + output_symhdr->ifdMax * external_fdr_size); | |
2536 | for (; fdr_ptr < fdr_end; fdr_ptr++, fdr_out += external_fdr_size) | |
2537 | { | |
2538 | FDR fdr; | |
2539 | unsigned long pdr_off; | |
2540 | ||
2541 | fdr = *fdr_ptr; | |
2542 | ||
2543 | /* The memory address for this fdr is the address for the seclet | |
2544 | plus the offset to this fdr within input_bfd. For some | |
2545 | reason the offset of the first procedure pointer is also | |
2546 | added in. */ | |
2547 | if (fdr.cpd == 0) | |
2548 | pdr_off = 0; | |
2549 | else | |
2550 | { | |
2551 | PDR pdr; | |
2552 | ||
2553 | (*swap_pdr_in) (input_bfd, | |
2554 | ((char *) input_ecoff->external_pdr | |
2555 | + fdr.ipdFirst * external_pdr_size), | |
2556 | &pdr); | |
2557 | pdr_off = pdr.adr; | |
2558 | } | |
2559 | fdr.adr = (bfd_get_section_vma (output_bfd, section) | |
2560 | + seclet->offset | |
2561 | + (fdr_ptr->adr - input_ecoff->fdr->adr) | |
2562 | + pdr_off); | |
2563 | ||
2564 | fdr.issBase += output_symhdr->issMax; | |
2565 | fdr.isymBase += output_symhdr->isymMax; | |
2566 | fdr.ilineBase += output_symhdr->ilineMax; | |
2567 | fdr.ioptBase += output_symhdr->ioptMax; | |
2568 | fdr.ipdFirst += output_symhdr->ipdMax; | |
2569 | fdr.iauxBase += output_symhdr->iauxMax; | |
2570 | fdr.rfdBase += output_symhdr->crfd; | |
2571 | ||
2572 | /* If there are no RFD's, we are going to add some. We don't | |
2573 | want to adjust irfd for this, so that all the FDR's can share | |
2574 | the RFD's. */ | |
2575 | if (input_symhdr->crfd == 0) | |
2576 | fdr.crfd = input_symhdr->ifdMax; | |
2577 | ||
2578 | if (fdr.cbLine != 0) | |
2579 | fdr.cbLineOffset += output_symhdr->cbLine; | |
2580 | ||
2581 | (*swap_fdr_out) (output_bfd, &fdr, fdr_out); | |
2582 | } | |
2583 | ||
2584 | if (input_symhdr->crfd > 0) | |
2585 | { | |
2586 | void (* const swap_rfd_in) PARAMS ((bfd *, PTR, RFDT *)) | |
2587 | = backend->swap_rfd_in; | |
2588 | char *rfd_in; | |
2589 | char *rfd_end; | |
2590 | char *rfd_out; | |
2591 | ||
2592 | /* Swap and adjust the RFD's. RFD's are only created by the | |
2593 | linker, so this will only be necessary if one of the input | |
2594 | files is the result of a partial link. Presumably all | |
2595 | necessary RFD's are present. */ | |
2596 | rfd_in = (char *) input_ecoff->external_rfd; | |
2597 | rfd_end = rfd_in + input_symhdr->crfd * external_rfd_size; | |
2598 | rfd_out = ((char *) output_ecoff->external_rfd | |
2599 | + output_symhdr->crfd * external_rfd_size); | |
2600 | for (; | |
2601 | rfd_in < rfd_end; | |
2602 | rfd_in += external_rfd_size, rfd_out += external_rfd_size) | |
2603 | { | |
2604 | RFDT rfd; | |
2605 | ||
2606 | (*swap_rfd_in) (input_bfd, rfd_in, &rfd); | |
2607 | rfd += output_symhdr->ifdMax; | |
2608 | (*swap_rfd_out) (output_bfd, &rfd, rfd_out); | |
2609 | } | |
2610 | output_symhdr->crfd += input_symhdr->crfd; | |
2611 | } | |
2612 | else | |
2613 | { | |
2614 | char *rfd_out; | |
2615 | char *rfd_end; | |
2616 | RFDT rfd; | |
2617 | ||
2618 | /* Create RFD's. Some of the debugging information includes | |
2619 | relative file indices. These indices are taken as indices to | |
2620 | the RFD table if there is one, or to the global table if | |
2621 | there is not. If we did not create RFD's, we would have to | |
2622 | parse and adjust all the debugging information which contains | |
2623 | file indices. */ | |
2624 | rfd = output_symhdr->ifdMax; | |
2625 | rfd_out = ((char *) output_ecoff->external_rfd | |
2626 | + output_symhdr->crfd * external_rfd_size); | |
2627 | rfd_end = rfd_out + input_symhdr->ifdMax * external_rfd_size; | |
2628 | for (; rfd_out < rfd_end; rfd_out += external_rfd_size, rfd++) | |
2629 | (*swap_rfd_out) (output_bfd, &rfd, rfd_out); | |
2630 | output_symhdr->crfd += input_symhdr->ifdMax; | |
2631 | } | |
2632 | ||
48edba81 ILT |
2633 | /* Combine the register masks. Not all of these are used on all |
2634 | targets, but that's OK because only the relevant ones will be | |
2635 | swapped in and out. */ | |
dae31cf5 ILT |
2636 | { |
2637 | int i; | |
2638 | ||
2639 | output_ecoff->gprmask |= input_ecoff->gprmask; | |
48edba81 | 2640 | output_ecoff->fprmask |= input_ecoff->fprmask; |
dae31cf5 ILT |
2641 | for (i = 0; i < 4; i++) |
2642 | output_ecoff->cprmask[i] |= input_ecoff->cprmask[i]; | |
2643 | } | |
2644 | ||
2645 | /* Update the counts. */ | |
2646 | output_symhdr->ilineMax += input_symhdr->ilineMax; | |
2647 | output_symhdr->cbLine += input_symhdr->cbLine; | |
2648 | output_symhdr->idnMax += input_symhdr->idnMax; | |
2649 | output_symhdr->ipdMax += input_symhdr->ipdMax; | |
2650 | output_symhdr->isymMax += input_symhdr->isymMax; | |
2651 | output_symhdr->ioptMax += input_symhdr->ioptMax; | |
2652 | output_symhdr->iauxMax += input_symhdr->iauxMax; | |
2653 | output_symhdr->issMax += input_symhdr->issMax; | |
2654 | output_symhdr->ifdMax += input_symhdr->ifdMax; | |
2655 | ||
2656 | return true; | |
2657 | } | |
2658 | ||
2659 | /* This is the actual link routine. It makes two passes over all the | |
2660 | seclets. */ | |
2661 | ||
2662 | boolean | |
2663 | ecoff_bfd_seclet_link (abfd, data, relocateable) | |
2664 | bfd *abfd; | |
2665 | PTR data; | |
2666 | boolean relocateable; | |
2667 | { | |
2668 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2669 | HDRR *symhdr; | |
2670 | int ipass; | |
2671 | register asection *o; | |
2672 | register bfd_seclet_type *p; | |
2673 | asymbol **sym_ptr_ptr; | |
2674 | bfd_size_type debug_align; | |
2675 | bfd_size_type size; | |
2676 | char *raw; | |
2677 | ||
2678 | /* We accumulate the debugging information counts in the symbolic | |
2679 | header. */ | |
2680 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
48edba81 | 2681 | symhdr->magic = backend->sym_magic; |
dae31cf5 ILT |
2682 | /* FIXME: What should the version stamp be? */ |
2683 | symhdr->vstamp = 0; | |
2684 | symhdr->ilineMax = 0; | |
2685 | symhdr->cbLine = 0; | |
2686 | symhdr->idnMax = 0; | |
2687 | symhdr->ipdMax = 0; | |
2688 | symhdr->isymMax = 0; | |
2689 | symhdr->ioptMax = 0; | |
2690 | symhdr->iauxMax = 0; | |
2691 | symhdr->issMax = 0; | |
2692 | symhdr->issExtMax = 0; | |
2693 | symhdr->ifdMax = 0; | |
2694 | symhdr->crfd = 0; | |
2695 | symhdr->iextMax = 0; | |
2696 | ||
2697 | /* We need to copy over the debugging symbols from each input BFD. | |
2698 | When we do this copying, we have to adjust the text address in | |
2699 | the FDR structures, so we have to know the text address used for | |
2700 | the input BFD. Since we only want to copy the symbols once per | |
2701 | input BFD, but we are going to look at each input BFD multiple | |
2702 | times (once for each section it provides), we arrange to always | |
2703 | look at the text section first. That means that when we copy the | |
2704 | debugging information, we always know the text address. So we | |
2705 | actually do each pass in two sub passes; first the text sections, | |
2706 | then the non-text sections. We use the output_has_begun flag to | |
2707 | determine whether we have copied over the debugging information | |
2708 | yet. */ | |
2709 | ||
2710 | /* Do the first pass: set the output section contents and count the | |
2711 | debugging information. */ | |
2712 | ecoff_clear_output_flags (abfd); | |
2713 | for (ipass = 0; ipass < 2; ipass++) | |
2714 | { | |
2715 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2716 | { | |
2717 | /* For SEC_CODE sections, (flags & SEC_CODE) == 0 is false, | |
2718 | so they are done on pass 0. For other sections the | |
2719 | expression is true, so they are done on pass 1. */ | |
2720 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2721 | continue; | |
2722 | ||
2723 | for (p = o->seclets_head; | |
2724 | p != (bfd_seclet_type *) NULL; | |
2725 | p = p->next) | |
2726 | { | |
2727 | if (ecoff_dump_seclet (abfd, p, o, data, relocateable) | |
2728 | == false) | |
2729 | return false; | |
2730 | } | |
2731 | } | |
2732 | } | |
2733 | ||
2734 | /* We handle the external symbols differently. We use the ones | |
2735 | attached to the output_bfd. The linker will have already | |
2736 | determined which symbols are to be attached. Here we just | |
2737 | determine how much space we will need for them. */ | |
2738 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2739 | if (sym_ptr_ptr != NULL) | |
2740 | { | |
2741 | asymbol **sym_end; | |
2742 | ||
2743 | sym_end = sym_ptr_ptr + bfd_get_symcount (abfd); | |
2744 | for (; sym_ptr_ptr < sym_end; sym_ptr_ptr++) | |
2745 | { | |
2746 | if (((*sym_ptr_ptr)->flags & BSF_DEBUGGING) == 0 | |
2747 | && ((*sym_ptr_ptr)->flags & BSF_LOCAL) == 0) | |
2748 | { | |
2749 | ++symhdr->iextMax; | |
2750 | symhdr->issExtMax += strlen ((*sym_ptr_ptr)->name) + 1; | |
2751 | } | |
2752 | } | |
2753 | } | |
2754 | ||
2755 | /* Adjust the counts so that structures are longword aligned. */ | |
2756 | debug_align = backend->debug_align; | |
2757 | --debug_align; | |
2758 | symhdr->cbLine = (symhdr->cbLine + debug_align) &~ debug_align; | |
2759 | symhdr->issMax = (symhdr->issMax + debug_align) &~ debug_align; | |
2760 | symhdr->issExtMax = (symhdr->issExtMax + debug_align) &~ debug_align; | |
2761 | ||
2762 | /* Now the counts in symhdr are the correct size for the debugging | |
2763 | information. We allocate the right amount of space, and reset | |
2764 | the counts so that the second pass can use them as indices. It | |
2765 | would be possible to output the debugging information directly to | |
2766 | the file in pass 2, rather than to build it in memory and then | |
2767 | write it out. Outputting to the file would require a lot of | |
2768 | seeks and small writes, though, and I think this approach is | |
2769 | faster. */ | |
2770 | size = (symhdr->cbLine * sizeof (unsigned char) | |
2771 | + symhdr->idnMax * backend->external_dnr_size | |
2772 | + symhdr->ipdMax * backend->external_pdr_size | |
2773 | + symhdr->isymMax * backend->external_sym_size | |
2774 | + symhdr->ioptMax * backend->external_opt_size | |
2775 | + symhdr->iauxMax * sizeof (union aux_ext) | |
2776 | + symhdr->issMax * sizeof (char) | |
2777 | + symhdr->issExtMax * sizeof (char) | |
2778 | + symhdr->ifdMax * backend->external_fdr_size | |
2779 | + symhdr->crfd * backend->external_rfd_size | |
2780 | + symhdr->iextMax * backend->external_ext_size); | |
2781 | raw = (char *) bfd_alloc (abfd, size); | |
2782 | if (raw == (char *) NULL) | |
2783 | { | |
2784 | bfd_error = no_memory; | |
2785 | return false; | |
2786 | } | |
2787 | ecoff_data (abfd)->raw_size = size; | |
2788 | ecoff_data (abfd)->raw_syments = (PTR) raw; | |
2789 | ||
2790 | /* Initialize the raw pointers. */ | |
2791 | #define SET(field, count, type, size) \ | |
2792 | ecoff_data (abfd)->field = (type) raw; \ | |
2793 | raw += symhdr->count * size | |
2794 | ||
2795 | SET (line, cbLine, unsigned char *, sizeof (unsigned char)); | |
2796 | SET (external_dnr, idnMax, PTR, backend->external_dnr_size); | |
2797 | SET (external_pdr, ipdMax, PTR, backend->external_pdr_size); | |
2798 | SET (external_sym, isymMax, PTR, backend->external_sym_size); | |
2799 | SET (external_opt, ioptMax, PTR, backend->external_opt_size); | |
2800 | SET (external_aux, iauxMax, union aux_ext *, sizeof (union aux_ext)); | |
2801 | SET (ss, issMax, char *, sizeof (char)); | |
2802 | SET (ssext, issExtMax, char *, sizeof (char)); | |
2803 | SET (external_fdr, ifdMax, PTR, backend->external_fdr_size); | |
2804 | SET (external_rfd, crfd, PTR, backend->external_rfd_size); | |
2805 | SET (external_ext, iextMax, PTR, backend->external_ext_size); | |
2806 | #undef SET | |
2807 | ||
2808 | /* Reset the counts so the second pass can use them to know how far | |
2809 | it has gotten. */ | |
2810 | symhdr->ilineMax = 0; | |
2811 | symhdr->cbLine = 0; | |
2812 | symhdr->idnMax = 0; | |
2813 | symhdr->ipdMax = 0; | |
2814 | symhdr->isymMax = 0; | |
2815 | symhdr->ioptMax = 0; | |
2816 | symhdr->iauxMax = 0; | |
2817 | symhdr->issMax = 0; | |
2818 | symhdr->issExtMax = 0; | |
2819 | symhdr->ifdMax = 0; | |
2820 | symhdr->crfd = 0; | |
2821 | symhdr->iextMax = 0; | |
2822 | ||
2823 | /* Do the second pass: accumulate the debugging information. */ | |
2824 | ecoff_clear_output_flags (abfd); | |
2825 | for (ipass = 0; ipass < 2; ipass++) | |
2826 | { | |
2827 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
2828 | { | |
2829 | if (((o->flags & SEC_CODE) == 0) != ipass) | |
2830 | continue; | |
2831 | for (p = o->seclets_head; | |
2832 | p != (bfd_seclet_type *) NULL; | |
2833 | p = p->next) | |
2834 | { | |
2835 | if (p->type == bfd_indirect_seclet) | |
2836 | { | |
2837 | if (ecoff_get_debug (abfd, p, o, relocateable) == false) | |
2838 | return false; | |
2839 | } | |
2840 | } | |
2841 | } | |
2842 | } | |
2843 | ||
2844 | /* Put in the external symbols. */ | |
2845 | sym_ptr_ptr = bfd_get_outsymbols (abfd); | |
2846 | if (sym_ptr_ptr != NULL) | |
2847 | { | |
2848 | const bfd_size_type external_ext_size = backend->external_ext_size; | |
2849 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
2850 | = backend->swap_ext_in; | |
2851 | void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR)) | |
2852 | = backend->swap_ext_out; | |
2853 | char *ssext; | |
2854 | char *external_ext; | |
2855 | ||
2856 | ssext = ecoff_data (abfd)->ssext; | |
2857 | external_ext = (char *) ecoff_data (abfd)->external_ext; | |
2858 | for (; *sym_ptr_ptr != NULL; sym_ptr_ptr++) | |
2859 | { | |
2860 | asymbol *sym_ptr; | |
2861 | EXTR esym; | |
2862 | ||
2863 | sym_ptr = *sym_ptr_ptr; | |
2864 | ||
2865 | if ((sym_ptr->flags & BSF_DEBUGGING) != 0 | |
2866 | || (sym_ptr->flags & BSF_LOCAL) != 0) | |
2867 | continue; | |
2868 | ||
2869 | /* The native pointer can be NULL for a symbol created by | |
2870 | the linker via ecoff_make_empty_symbol. */ | |
2871 | if (bfd_asymbol_flavour (sym_ptr) != bfd_target_ecoff_flavour | |
2872 | || ecoffsymbol (sym_ptr)->native == NULL) | |
2873 | { | |
2874 | esym.jmptbl = 0; | |
2875 | esym.cobol_main = 0; | |
2876 | esym.weakext = 0; | |
2877 | esym.reserved = 0; | |
2878 | esym.ifd = ifdNil; | |
2879 | /* FIXME: we can do better than this for st and sc. */ | |
2880 | esym.asym.st = stGlobal; | |
2881 | esym.asym.sc = scAbs; | |
2882 | esym.asym.reserved = 0; | |
2883 | esym.asym.index = indexNil; | |
2884 | } | |
2885 | else | |
2886 | { | |
2887 | ecoff_symbol_type *ecoff_sym_ptr; | |
2888 | ||
2889 | ecoff_sym_ptr = ecoffsymbol (sym_ptr); | |
2890 | if (ecoff_sym_ptr->local) | |
2891 | abort (); | |
2892 | (*swap_ext_in) (abfd, ecoff_sym_ptr->native, &esym); | |
2893 | ||
2894 | /* If we're producing an executable, move common symbols | |
2895 | into bss. */ | |
2896 | if (relocateable == false) | |
2897 | { | |
2898 | if (esym.asym.sc == scCommon) | |
2899 | esym.asym.sc = scBss; | |
2900 | else if (esym.asym.sc == scSCommon) | |
2901 | esym.asym.sc = scSBss; | |
2902 | } | |
2903 | ||
2904 | /* Adjust the FDR index for the symbol by that used for | |
2905 | the input BFD. */ | |
2906 | esym.ifd += ecoff_data (bfd_asymbol_bfd (sym_ptr))->ifdbase; | |
2907 | } | |
2908 | ||
2909 | esym.asym.iss = symhdr->issExtMax; | |
2910 | ||
2911 | if (bfd_is_com_section (sym_ptr->section) | |
2912 | || sym_ptr->section == &bfd_und_section) | |
2913 | esym.asym.value = sym_ptr->value; | |
2914 | else | |
2915 | esym.asym.value = (sym_ptr->value | |
2916 | + sym_ptr->section->output_offset | |
2917 | + sym_ptr->section->output_section->vma); | |
2918 | ||
2919 | (*swap_ext_out) (abfd, &esym, external_ext); | |
2920 | ||
2921 | ecoff_set_sym_index (sym_ptr, symhdr->iextMax); | |
2922 | ||
2923 | external_ext += external_ext_size; | |
2924 | ++symhdr->iextMax; | |
2925 | ||
2926 | strcpy (ssext + symhdr->issExtMax, sym_ptr->name); | |
2927 | symhdr->issExtMax += strlen (sym_ptr->name) + 1; | |
2928 | } | |
2929 | } | |
2930 | ||
2931 | /* Adjust the counts so that structures are longword aligned. */ | |
2932 | symhdr->cbLine = (symhdr->cbLine + debug_align) &~ debug_align; | |
2933 | symhdr->issMax = (symhdr->issMax + debug_align) &~ debug_align; | |
2934 | symhdr->issExtMax = (symhdr->issExtMax + debug_align) &~ debug_align; | |
2935 | ||
2936 | return true; | |
2937 | } | |
2938 | \f | |
2939 | /* Set the architecture. The supported architecture is stored in the | |
2940 | backend pointer. We always set the architecture anyhow, since many | |
2941 | callers ignore the return value. */ | |
2942 | ||
2943 | boolean | |
2944 | ecoff_set_arch_mach (abfd, arch, machine) | |
2945 | bfd *abfd; | |
2946 | enum bfd_architecture arch; | |
2947 | unsigned long machine; | |
2948 | { | |
2949 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2950 | return arch == ecoff_backend (abfd)->arch; | |
2951 | } | |
2952 | ||
2953 | /* Get the size of the section headers. We do not output the .scommon | |
a7853216 ILT |
2954 | section which we created in ecoff_mkobject, nor do we output any |
2955 | .reginfo section. */ | |
dae31cf5 ILT |
2956 | |
2957 | int | |
2958 | ecoff_sizeof_headers (abfd, reloc) | |
2959 | bfd *abfd; | |
2960 | boolean reloc; | |
2961 | { | |
a7853216 ILT |
2962 | asection *current; |
2963 | int c; | |
2964 | ||
2965 | c = 0; | |
2966 | for (current = abfd->sections; | |
2967 | current != (asection *)NULL; | |
2968 | current = current->next) | |
2969 | if (strcmp (current->name, SCOMMON) != 0 | |
2970 | && strcmp (current->name, REGINFO) != 0) | |
2971 | ++c; | |
2972 | ||
dae31cf5 ILT |
2973 | return (bfd_coff_filhsz (abfd) |
2974 | + bfd_coff_aoutsz (abfd) | |
a7853216 ILT |
2975 | + c * bfd_coff_scnhsz (abfd)); |
2976 | } | |
2977 | ||
2978 | ||
2979 | /* Get the contents of a section. This is where we handle reading the | |
2980 | .reginfo section, which implicitly holds the contents of an | |
2981 | ecoff_reginfo structure. */ | |
2982 | ||
2983 | boolean | |
2984 | ecoff_get_section_contents (abfd, section, location, offset, count) | |
2985 | bfd *abfd; | |
2986 | asection *section; | |
2987 | PTR location; | |
2988 | file_ptr offset; | |
2989 | bfd_size_type count; | |
2990 | { | |
2991 | ecoff_data_type *tdata = ecoff_data (abfd); | |
2992 | struct ecoff_reginfo s; | |
2993 | int i; | |
2994 | ||
2995 | if (strcmp (section->name, REGINFO) != 0) | |
2996 | return bfd_generic_get_section_contents (abfd, section, location, | |
2997 | offset, count); | |
2998 | ||
2999 | s.gp_value = tdata->gp; | |
3000 | s.gprmask = tdata->gprmask; | |
3001 | for (i = 0; i < 4; i++) | |
3002 | s.cprmask[i] = tdata->cprmask[i]; | |
3003 | s.fprmask = tdata->fprmask; | |
3004 | ||
3005 | /* bfd_get_section_contents has already checked that the offset and | |
3006 | size is reasonable. We don't have to worry about swapping or any | |
3007 | such thing; the .reginfo section is defined such that the | |
3008 | contents are an ecoff_reginfo structure as seen on the host. */ | |
3009 | memcpy (location, ((char *) &s) + offset, count); | |
3010 | return true; | |
dae31cf5 ILT |
3011 | } |
3012 | ||
3013 | /* Calculate the file position for each section, and set | |
3014 | reloc_filepos. */ | |
3015 | ||
3016 | static void | |
3017 | ecoff_compute_section_file_positions (abfd) | |
3018 | bfd *abfd; | |
3019 | { | |
3020 | asection *current; | |
3021 | file_ptr sofar; | |
3022 | file_ptr old_sofar; | |
3023 | boolean first_data; | |
3024 | ||
3025 | if (bfd_get_start_address (abfd)) | |
3026 | abfd->flags |= EXEC_P; | |
3027 | ||
3028 | sofar = ecoff_sizeof_headers (abfd, false); | |
3029 | ||
3030 | first_data = true; | |
3031 | for (current = abfd->sections; | |
3032 | current != (asection *) NULL; | |
3033 | current = current->next) | |
3034 | { | |
3035 | /* Only deal with sections which have contents */ | |
e544ed4f | 3036 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) == 0 |
a7853216 ILT |
3037 | || strcmp (current->name, SCOMMON) == 0 |
3038 | || strcmp (current->name, REGINFO) == 0) | |
dae31cf5 ILT |
3039 | continue; |
3040 | ||
3041 | /* On Ultrix, the data sections in an executable file must be | |
3042 | aligned to a page boundary within the file. This does not | |
3043 | affect the section size, though. FIXME: Does this work for | |
3044 | other platforms? */ | |
3045 | if ((abfd->flags & EXEC_P) != 0 | |
3046 | && (abfd->flags & D_PAGED) != 0 | |
3047 | && first_data != false | |
3048 | && (current->flags & SEC_CODE) == 0) | |
3049 | { | |
3050 | const bfd_vma round = ecoff_backend (abfd)->round; | |
3051 | ||
3052 | sofar = (sofar + round - 1) &~ (round - 1); | |
3053 | first_data = false; | |
3054 | } | |
3055 | ||
3056 | /* Align the sections in the file to the same boundary on | |
3057 | which they are aligned in virtual memory. */ | |
3058 | old_sofar = sofar; | |
3059 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
3060 | ||
3061 | current->filepos = sofar; | |
3062 | ||
3063 | sofar += current->_raw_size; | |
3064 | ||
3065 | /* make sure that this section is of the right size too */ | |
3066 | old_sofar = sofar; | |
3067 | sofar = BFD_ALIGN (sofar, 1 << current->alignment_power); | |
3068 | current->_raw_size += sofar - old_sofar; | |
3069 | } | |
3070 | ||
3071 | ecoff_data (abfd)->reloc_filepos = sofar; | |
3072 | } | |
3073 | ||
a7853216 ILT |
3074 | /* Set the contents of a section. This is where we handle setting the |
3075 | contents of the .reginfo section, which implicitly holds a | |
3076 | ecoff_reginfo structure. */ | |
dae31cf5 ILT |
3077 | |
3078 | boolean | |
3079 | ecoff_set_section_contents (abfd, section, location, offset, count) | |
3080 | bfd *abfd; | |
3081 | asection *section; | |
3082 | PTR location; | |
3083 | file_ptr offset; | |
3084 | bfd_size_type count; | |
3085 | { | |
3086 | if (abfd->output_has_begun == false) | |
3087 | ecoff_compute_section_file_positions (abfd); | |
3088 | ||
a7853216 ILT |
3089 | if (strcmp (section->name, REGINFO) == 0) |
3090 | { | |
3091 | ecoff_data_type *tdata = ecoff_data (abfd); | |
3092 | struct ecoff_reginfo s; | |
3093 | int i; | |
3094 | ||
3095 | /* If the caller is only changing part of the structure, we must | |
3096 | retrieve the current information before the memcpy. */ | |
3097 | if (offset != 0 || count != sizeof (struct ecoff_reginfo)) | |
3098 | { | |
3099 | s.gp_value = tdata->gp; | |
3100 | s.gprmask = tdata->gprmask; | |
3101 | for (i = 0; i < 4; i++) | |
3102 | s.cprmask[i] = tdata->cprmask[i]; | |
3103 | s.fprmask = tdata->fprmask; | |
3104 | } | |
3105 | ||
3106 | /* bfd_set_section_contents has already checked that the offset | |
3107 | and size is reasonable. We don't have to worry about | |
3108 | swapping or any such thing; the .reginfo section is defined | |
3109 | such that the contents are an ecoff_reginfo structure as seen | |
3110 | on the host. */ | |
3111 | memcpy (((char *) &s) + offset, location, count); | |
3112 | ||
3113 | tdata->gp = s.gp_value; | |
3114 | tdata->gprmask = s.gprmask; | |
3115 | for (i = 0; i < 4; i++) | |
3116 | tdata->cprmask[i] = s.cprmask[i]; | |
3117 | tdata->fprmask = s.fprmask; | |
3118 | ||
3119 | return true; | |
3120 | ||
3121 | } | |
3122 | ||
dae31cf5 ILT |
3123 | bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET); |
3124 | ||
3125 | if (count != 0) | |
3126 | return (bfd_write (location, 1, count, abfd) == count) ? true : false; | |
3127 | ||
3128 | return true; | |
3129 | } | |
3130 | ||
3131 | /* Write out an ECOFF file. */ | |
3132 | ||
3133 | boolean | |
3134 | ecoff_write_object_contents (abfd) | |
3135 | bfd *abfd; | |
3136 | { | |
3137 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3138 | const bfd_vma round = backend->round; | |
3139 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); | |
3140 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); | |
3141 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); | |
3142 | const bfd_size_type external_hdr_size = backend->external_hdr_size; | |
3143 | const bfd_size_type external_reloc_size = backend->external_reloc_size; | |
3144 | void (* const swap_reloc_out) PARAMS ((bfd *, | |
3145 | const struct internal_reloc *, | |
3146 | PTR)) | |
3147 | = backend->swap_reloc_out; | |
3148 | asection *current; | |
3149 | unsigned int count; | |
3150 | file_ptr scn_base; | |
3151 | file_ptr reloc_base; | |
3152 | file_ptr sym_base; | |
3153 | unsigned long reloc_size; | |
3154 | unsigned long text_size; | |
3155 | unsigned long text_start; | |
3156 | unsigned long data_size; | |
3157 | unsigned long data_start; | |
3158 | unsigned long bss_size; | |
3159 | PTR buff; | |
3160 | struct internal_filehdr internal_f; | |
3161 | struct internal_aouthdr internal_a; | |
3162 | int i; | |
3163 | ||
3164 | bfd_error = system_call_error; | |
3165 | ||
3166 | if(abfd->output_has_begun == false) | |
3167 | ecoff_compute_section_file_positions(abfd); | |
3168 | ||
3169 | if (abfd->sections != (asection *) NULL) | |
3170 | scn_base = abfd->sections->filepos; | |
3171 | else | |
3172 | scn_base = 0; | |
3173 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
3174 | ||
3175 | count = 1; | |
3176 | reloc_size = 0; | |
3177 | for (current = abfd->sections; | |
3178 | current != (asection *)NULL; | |
3179 | current = current->next) | |
3180 | { | |
a7853216 ILT |
3181 | if (strcmp (current->name, SCOMMON) == 0 |
3182 | || strcmp (current->name, REGINFO) == 0) | |
dae31cf5 ILT |
3183 | continue; |
3184 | current->target_index = count; | |
3185 | ++count; | |
3186 | if (current->reloc_count != 0) | |
3187 | { | |
3188 | bfd_size_type relsize; | |
3189 | ||
3190 | current->rel_filepos = reloc_base; | |
3191 | relsize = current->reloc_count * external_reloc_size; | |
3192 | reloc_size += relsize; | |
3193 | reloc_base += relsize; | |
3194 | } | |
3195 | else | |
3196 | current->rel_filepos = 0; | |
3197 | } | |
3198 | ||
3199 | sym_base = reloc_base + reloc_size; | |
3200 | ||
3201 | /* At least on Ultrix, the symbol table of an executable file must | |
3202 | be aligned to a page boundary. FIXME: Is this true on other | |
3203 | platforms? */ | |
3204 | if ((abfd->flags & EXEC_P) != 0 | |
3205 | && (abfd->flags & D_PAGED) != 0) | |
3206 | sym_base = (sym_base + round - 1) &~ (round - 1); | |
3207 | ||
3208 | ecoff_data (abfd)->sym_filepos = sym_base; | |
3209 | ||
3210 | if ((abfd->flags & D_PAGED) != 0) | |
3211 | text_size = ecoff_sizeof_headers (abfd, false); | |
3212 | else | |
3213 | text_size = 0; | |
3214 | text_start = 0; | |
3215 | data_size = 0; | |
3216 | data_start = 0; | |
3217 | bss_size = 0; | |
3218 | ||
3219 | /* Write section headers to the file. */ | |
3220 | ||
3221 | buff = (PTR) alloca (scnhsz); | |
3222 | internal_f.f_nscns = 0; | |
3223 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) | |
3224 | return false; | |
3225 | for (current = abfd->sections; | |
3226 | current != (asection *) NULL; | |
3227 | current = current->next) | |
3228 | { | |
3229 | struct internal_scnhdr section; | |
3230 | bfd_vma vma; | |
3231 | ||
3232 | if (strcmp (current->name, SCOMMON) == 0) | |
3233 | { | |
3234 | BFD_ASSERT (bfd_get_section_size_before_reloc (current) == 0 | |
3235 | && current->reloc_count == 0); | |
3236 | continue; | |
3237 | } | |
a7853216 ILT |
3238 | if (strcmp (current->name, REGINFO) == 0) |
3239 | { | |
3240 | BFD_ASSERT ((bfd_get_section_size_before_reloc (current) | |
3241 | == sizeof (struct ecoff_reginfo)) | |
3242 | && current->reloc_count == 0); | |
3243 | continue; | |
3244 | } | |
dae31cf5 ILT |
3245 | |
3246 | ++internal_f.f_nscns; | |
3247 | ||
3248 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
3249 | ||
3250 | /* FIXME: is this correct for shared libraries? I think it is | |
3251 | but I have no platform to check. Ian Lance Taylor. */ | |
3252 | vma = bfd_get_section_vma (abfd, current); | |
3253 | if (strcmp (current->name, _LIB) == 0) | |
3254 | section.s_vaddr = 0; | |
3255 | else | |
3256 | section.s_vaddr = vma; | |
3257 | ||
3258 | section.s_paddr = vma; | |
3259 | section.s_size = bfd_get_section_size_before_reloc (current); | |
3260 | ||
e544ed4f ILT |
3261 | /* If this section is unloadable then the scnptr will be 0. */ |
3262 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
dae31cf5 ILT |
3263 | section.s_scnptr = 0; |
3264 | else | |
3265 | section.s_scnptr = current->filepos; | |
3266 | section.s_relptr = current->rel_filepos; | |
3267 | ||
3268 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
3269 | object file produced by the assembler is supposed to point to | |
3270 | information about how much room is required by objects of | |
3271 | various different sizes. I think this only matters if we | |
3272 | want the linker to compute the best size to use, or | |
3273 | something. I don't know what happens if the information is | |
3274 | not present. */ | |
3275 | section.s_lnnoptr = 0; | |
3276 | ||
3277 | section.s_nreloc = current->reloc_count; | |
3278 | section.s_nlnno = 0; | |
3279 | section.s_flags = ecoff_sec_to_styp_flags (current->name, | |
3280 | current->flags); | |
3281 | ||
3282 | bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff); | |
3283 | if (bfd_write (buff, 1, scnhsz, abfd) != scnhsz) | |
3284 | return false; | |
3285 | ||
3286 | if ((section.s_flags & STYP_TEXT) != 0) | |
3287 | { | |
3288 | text_size += bfd_get_section_size_before_reloc (current); | |
3289 | if (text_start == 0 || text_start > vma) | |
3290 | text_start = vma; | |
3291 | } | |
3292 | else if ((section.s_flags & STYP_RDATA) != 0 | |
3293 | || (section.s_flags & STYP_DATA) != 0 | |
3294 | || (section.s_flags & STYP_LIT8) != 0 | |
3295 | || (section.s_flags & STYP_LIT4) != 0 | |
3296 | || (section.s_flags & STYP_SDATA) != 0) | |
3297 | { | |
3298 | data_size += bfd_get_section_size_before_reloc (current); | |
3299 | if (data_start == 0 || data_start > vma) | |
3300 | data_start = vma; | |
3301 | } | |
3302 | else if ((section.s_flags & STYP_BSS) != 0 | |
3303 | || (section.s_flags & STYP_SBSS) != 0) | |
3304 | bss_size += bfd_get_section_size_before_reloc (current); | |
3305 | } | |
3306 | ||
3307 | /* Set up the file header. */ | |
3308 | ||
a7853216 | 3309 | internal_f.f_magic = ecoff_get_magic (abfd); |
dae31cf5 ILT |
3310 | |
3311 | /* We will NOT put a fucking timestamp in the header here. Every | |
3312 | time you put it back, I will come in and take it out again. I'm | |
3313 | sorry. This field does not belong here. We fill it with a 0 so | |
3314 | it compares the same but is not a reasonable time. -- | |
3315 | gnu@cygnus.com. */ | |
3316 | internal_f.f_timdat = 0; | |
3317 | ||
3318 | if (bfd_get_symcount (abfd) != 0) | |
3319 | { | |
3320 | /* The ECOFF f_nsyms field is not actually the number of | |
3321 | symbols, it's the size of symbolic information header. */ | |
3322 | internal_f.f_nsyms = external_hdr_size; | |
3323 | internal_f.f_symptr = sym_base; | |
3324 | } | |
3325 | else | |
3326 | { | |
3327 | internal_f.f_nsyms = 0; | |
3328 | internal_f.f_symptr = 0; | |
3329 | } | |
3330 | ||
3331 | internal_f.f_opthdr = aoutsz; | |
3332 | ||
3333 | internal_f.f_flags = F_LNNO; | |
3334 | if (reloc_size == 0) | |
3335 | internal_f.f_flags |= F_RELFLG; | |
3336 | if (bfd_get_symcount (abfd) == 0) | |
3337 | internal_f.f_flags |= F_LSYMS; | |
3338 | if (abfd->flags & EXEC_P) | |
3339 | internal_f.f_flags |= F_EXEC; | |
3340 | ||
3341 | if (! abfd->xvec->byteorder_big_p) | |
3342 | internal_f.f_flags |= F_AR32WR; | |
3343 | else | |
3344 | internal_f.f_flags |= F_AR32W; | |
3345 | ||
3346 | /* Set up the ``optional'' header. */ | |
3347 | if ((abfd->flags & D_PAGED) != 0) | |
3348 | internal_a.magic = ECOFF_AOUT_ZMAGIC; | |
3349 | else | |
3350 | internal_a.magic = ECOFF_AOUT_OMAGIC; | |
3351 | ||
3352 | /* FIXME: This is what Ultrix puts in, and it makes the Ultrix | |
3353 | linker happy. But, is it right? */ | |
3354 | internal_a.vstamp = 0x20a; | |
3355 | ||
3356 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
3357 | FIXME: Is this true on other platforms? */ | |
3358 | if ((abfd->flags & D_PAGED) != 0) | |
3359 | { | |
3360 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); | |
3361 | internal_a.text_start = text_start &~ (round - 1); | |
3362 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); | |
3363 | internal_a.data_start = data_start &~ (round - 1); | |
3364 | } | |
3365 | else | |
3366 | { | |
3367 | internal_a.tsize = text_size; | |
3368 | internal_a.text_start = text_start; | |
3369 | internal_a.dsize = data_size; | |
3370 | internal_a.data_start = data_start; | |
3371 | } | |
3372 | ||
3373 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
3374 | are at the end of the data section. The bsize field in the | |
3375 | optional header records how many bss bytes are required beyond | |
3376 | those in the data section. The value is not rounded to a page | |
3377 | boundary. */ | |
3378 | if (bss_size < internal_a.dsize - data_size) | |
3379 | bss_size = 0; | |
3380 | else | |
3381 | bss_size -= internal_a.dsize - data_size; | |
3382 | internal_a.bsize = bss_size; | |
3383 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
3384 | ||
3385 | internal_a.entry = bfd_get_start_address (abfd); | |
3386 | ||
3387 | internal_a.gp_value = ecoff_data (abfd)->gp; | |
3388 | ||
3389 | internal_a.gprmask = ecoff_data (abfd)->gprmask; | |
48edba81 | 3390 | internal_a.fprmask = ecoff_data (abfd)->fprmask; |
dae31cf5 ILT |
3391 | for (i = 0; i < 4; i++) |
3392 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
3393 | ||
3394 | /* Write out the file header and the optional header. */ | |
3395 | ||
3396 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
3397 | return false; | |
3398 | ||
3399 | buff = (PTR) alloca (filhsz); | |
3400 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff); | |
3401 | if (bfd_write (buff, 1, filhsz, abfd) != filhsz) | |
3402 | return false; | |
3403 | ||
3404 | buff = (PTR) alloca (aoutsz); | |
3405 | bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff); | |
3406 | if (bfd_write (buff, 1, aoutsz, abfd) != aoutsz) | |
3407 | return false; | |
3408 | ||
3409 | /* Write out the relocs. */ | |
3410 | for (current = abfd->sections; | |
3411 | current != (asection *) NULL; | |
3412 | current = current->next) | |
3413 | { | |
3414 | arelent **reloc_ptr_ptr; | |
3415 | arelent **reloc_end; | |
3416 | char *out_ptr; | |
3417 | ||
3418 | if (current->reloc_count == 0) | |
3419 | continue; | |
3420 | ||
3421 | buff = bfd_alloc (abfd, current->reloc_count * external_reloc_size); | |
3422 | if (buff == NULL) | |
3423 | { | |
3424 | bfd_error = no_memory; | |
3425 | return false; | |
3426 | } | |
3427 | ||
3428 | reloc_ptr_ptr = current->orelocation; | |
3429 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
3430 | out_ptr = (char *) buff; | |
3431 | for (; | |
3432 | reloc_ptr_ptr < reloc_end; | |
3433 | reloc_ptr_ptr++, out_ptr += external_reloc_size) | |
3434 | { | |
3435 | arelent *reloc; | |
3436 | asymbol *sym; | |
3437 | struct internal_reloc in; | |
3438 | ||
3439 | memset (&in, 0, sizeof in); | |
3440 | ||
3441 | reloc = *reloc_ptr_ptr; | |
3442 | sym = *reloc->sym_ptr_ptr; | |
3443 | ||
dae31cf5 ILT |
3444 | in.r_vaddr = reloc->address + bfd_get_section_vma (abfd, current); |
3445 | in.r_type = reloc->howto->type; | |
3446 | ||
dae31cf5 ILT |
3447 | if ((sym->flags & BSF_SECTION_SYM) == 0) |
3448 | { | |
3449 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
3450 | in.r_extern = 1; | |
3451 | } | |
3452 | else | |
3453 | { | |
3454 | CONST char *name; | |
3455 | ||
3456 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
3457 | if (strcmp (name, ".text") == 0) | |
3458 | in.r_symndx = RELOC_SECTION_TEXT; | |
3459 | else if (strcmp (name, ".rdata") == 0) | |
3460 | in.r_symndx = RELOC_SECTION_RDATA; | |
3461 | else if (strcmp (name, ".data") == 0) | |
3462 | in.r_symndx = RELOC_SECTION_DATA; | |
3463 | else if (strcmp (name, ".sdata") == 0) | |
3464 | in.r_symndx = RELOC_SECTION_SDATA; | |
3465 | else if (strcmp (name, ".sbss") == 0) | |
3466 | in.r_symndx = RELOC_SECTION_SBSS; | |
3467 | else if (strcmp (name, ".bss") == 0) | |
3468 | in.r_symndx = RELOC_SECTION_BSS; | |
3469 | else if (strcmp (name, ".init") == 0) | |
3470 | in.r_symndx = RELOC_SECTION_INIT; | |
3471 | else if (strcmp (name, ".lit8") == 0) | |
3472 | in.r_symndx = RELOC_SECTION_LIT8; | |
3473 | else if (strcmp (name, ".lit4") == 0) | |
3474 | in.r_symndx = RELOC_SECTION_LIT4; | |
3475 | else | |
3476 | abort (); | |
3477 | in.r_extern = 0; | |
3478 | } | |
3479 | ||
3480 | (*swap_reloc_out) (abfd, &in, (PTR) out_ptr); | |
3481 | } | |
3482 | ||
3483 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) | |
3484 | return false; | |
3485 | if (bfd_write (buff, external_reloc_size, current->reloc_count, abfd) | |
3486 | != external_reloc_size * current->reloc_count) | |
3487 | return false; | |
3488 | bfd_release (abfd, buff); | |
3489 | } | |
3490 | ||
3491 | /* Write out the symbolic debugging information. */ | |
3492 | if (bfd_get_symcount (abfd) > 0) | |
3493 | { | |
3494 | HDRR *symhdr; | |
3495 | unsigned long sym_offset; | |
3496 | ||
3497 | /* Set up the offsets in the symbolic header. */ | |
3498 | symhdr = &ecoff_data (abfd)->symbolic_header; | |
3499 | sym_offset = ecoff_data (abfd)->sym_filepos + external_hdr_size; | |
3500 | ||
3501 | #define SET(offset, size, ptr) \ | |
3502 | if (symhdr->size == 0) \ | |
3503 | symhdr->offset = 0; \ | |
3504 | else \ | |
3505 | symhdr->offset = (((char *) ecoff_data (abfd)->ptr \ | |
3506 | - (char *) ecoff_data (abfd)->raw_syments) \ | |
3507 | + sym_offset); | |
3508 | ||
3509 | SET (cbLineOffset, cbLine, line); | |
3510 | SET (cbDnOffset, idnMax, external_dnr); | |
3511 | SET (cbPdOffset, ipdMax, external_pdr); | |
3512 | SET (cbSymOffset, isymMax, external_sym); | |
3513 | SET (cbOptOffset, ioptMax, external_opt); | |
3514 | SET (cbAuxOffset, iauxMax, external_aux); | |
3515 | SET (cbSsOffset, issMax, ss); | |
3516 | SET (cbSsExtOffset, issExtMax, ssext); | |
3517 | SET (cbFdOffset, ifdMax, external_fdr); | |
3518 | SET (cbRfdOffset, crfd, external_rfd); | |
3519 | SET (cbExtOffset, iextMax, external_ext); | |
3520 | #undef SET | |
3521 | ||
3522 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos, | |
3523 | SEEK_SET) != 0) | |
3524 | return false; | |
3525 | buff = (PTR) alloca (external_hdr_size); | |
3526 | (*backend->swap_hdr_out) (abfd, &ecoff_data (abfd)->symbolic_header, | |
3527 | buff); | |
3528 | if (bfd_write (buff, 1, external_hdr_size, abfd) != external_hdr_size) | |
3529 | return false; | |
3530 | if (bfd_write ((PTR) ecoff_data (abfd)->raw_syments, 1, | |
3531 | ecoff_data (abfd)->raw_size, abfd) | |
3532 | != ecoff_data (abfd)->raw_size) | |
3533 | return false; | |
3534 | } | |
3535 | else if ((abfd->flags & EXEC_P) != 0 | |
3536 | && (abfd->flags & D_PAGED) != 0) | |
3537 | { | |
3538 | char c; | |
3539 | ||
3540 | /* A demand paged executable must occupy an even number of | |
3541 | pages. */ | |
3542 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
3543 | SEEK_SET) != 0) | |
3544 | return false; | |
3545 | if (bfd_read (&c, 1, 1, abfd) == 0) | |
3546 | c = 0; | |
3547 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
3548 | SEEK_SET) != 0) | |
3549 | return false; | |
3550 | if (bfd_write (&c, 1, 1, abfd) != 1) | |
3551 | return false; | |
3552 | } | |
3553 | ||
3554 | return true; | |
3555 | } | |
3556 | \f | |
3557 | /* Archive handling. ECOFF uses what appears to be a unique type of | |
3558 | archive header (which I call an armap). The byte ordering of the | |
3559 | armap and the contents are encoded in the name of the armap itself. | |
3560 | At least for now, we only support archives with the same byte | |
3561 | ordering in the armap and the contents. | |
3562 | ||
3563 | The first four bytes in the armap are the number of symbol | |
3564 | definitions. This is always a power of two. | |
3565 | ||
3566 | This is followed by the symbol definitions. Each symbol definition | |
3567 | occupies 8 bytes. The first four bytes are the offset from the | |
3568 | start of the armap strings to the null-terminated string naming | |
3569 | this symbol. The second four bytes are the file offset to the | |
3570 | archive member which defines this symbol. If the second four bytes | |
3571 | are 0, then this is not actually a symbol definition, and it should | |
3572 | be ignored. | |
3573 | ||
3574 | The symbols are hashed into the armap with a closed hashing scheme. | |
3575 | See the functions below for the details of the algorithm. | |
3576 | ||
3577 | We could use the hash table when looking up symbols in a library. | |
3578 | This would require a new BFD target entry point to replace the | |
3579 | bfd_get_next_mapent function used by the linker. | |
3580 | ||
3581 | After the symbol definitions comes four bytes holding the size of | |
3582 | the string table, followed by the string table itself. */ | |
3583 | ||
3584 | /* The name of an archive headers looks like this: | |
3585 | __________E[BL]E[BL]_ (with a trailing space). | |
3586 | The trailing space is changed to an X if the archive is changed to | |
48edba81 ILT |
3587 | indicate that the armap is out of date. |
3588 | ||
3589 | The Alpha seems to use ________64E[BL]E[BL]_. */ | |
dae31cf5 ILT |
3590 | |
3591 | #define ARMAP_BIG_ENDIAN 'B' | |
3592 | #define ARMAP_LITTLE_ENDIAN 'L' | |
3593 | #define ARMAP_MARKER 'E' | |
48edba81 | 3594 | #define ARMAP_START_LENGTH 10 |
dae31cf5 ILT |
3595 | #define ARMAP_HEADER_MARKER_INDEX 10 |
3596 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
3597 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
3598 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
3599 | #define ARMAP_END_INDEX 14 | |
3600 | #define ARMAP_END "_ " | |
3601 | ||
3602 | /* This is a magic number used in the hashing algorithm. */ | |
3603 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
3604 | ||
3605 | /* This returns the hash value to use for a string. It also sets | |
3606 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
3607 | is the number of entries in the hash table, and HLOG is the log | |
3608 | base 2 of SIZE. */ | |
3609 | ||
3610 | static unsigned int | |
3611 | ecoff_armap_hash (s, rehash, size, hlog) | |
3612 | CONST char *s; | |
3613 | unsigned int *rehash; | |
3614 | unsigned int size; | |
3615 | unsigned int hlog; | |
3616 | { | |
3617 | unsigned int hash; | |
3618 | ||
3619 | hash = *s++; | |
3620 | while (*s != '\0') | |
3621 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
3622 | hash *= ARMAP_HASH_MAGIC; | |
3623 | *rehash = (hash & (size - 1)) | 1; | |
3624 | return hash >> (32 - hlog); | |
3625 | } | |
3626 | ||
3627 | /* Read in the armap. */ | |
3628 | ||
3629 | boolean | |
3630 | ecoff_slurp_armap (abfd) | |
3631 | bfd *abfd; | |
3632 | { | |
3633 | char nextname[17]; | |
3634 | unsigned int i; | |
3635 | struct areltdata *mapdata; | |
3636 | bfd_size_type parsed_size; | |
3637 | char *raw_armap; | |
3638 | struct artdata *ardata; | |
3639 | unsigned int count; | |
3640 | char *raw_ptr; | |
3641 | struct symdef *symdef_ptr; | |
3642 | char *stringbase; | |
3643 | ||
3644 | /* Get the name of the first element. */ | |
3645 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
3646 | if (i == 0) | |
3647 | return true; | |
3648 | if (i != 16) | |
3649 | return false; | |
3650 | ||
3651 | bfd_seek (abfd, (file_ptr) -16, SEEK_CUR); | |
3652 | ||
8c11363a ILT |
3653 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a |
3654 | standard COFF armap. We could move the ECOFF armap stuff into | |
3655 | bfd_slurp_armap, but that seems inappropriate since no other | |
3656 | target uses this format. Instead, we check directly for a COFF | |
3657 | armap. */ | |
3658 | if (strncmp (nextname, "/ ", 16) == 0) | |
3659 | return bfd_slurp_armap (abfd); | |
3660 | ||
dae31cf5 | 3661 | /* See if the first element is an armap. */ |
48edba81 ILT |
3662 | if (strncmp (nextname, ecoff_backend (abfd)->armap_start, |
3663 | ARMAP_START_LENGTH) != 0 | |
dae31cf5 ILT |
3664 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER |
3665 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3666 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3667 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
3668 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3669 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3670 | || strncmp (nextname + ARMAP_END_INDEX, | |
3671 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3672 | { | |
3673 | bfd_has_map (abfd) = false; | |
3674 | return true; | |
3675 | } | |
3676 | ||
3677 | /* Make sure we have the right byte ordering. */ | |
3678 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3679 | ^ (abfd->xvec->header_byteorder_big_p != false)) | |
3680 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3681 | ^ (abfd->xvec->byteorder_big_p != false))) | |
3682 | { | |
3683 | bfd_error = wrong_format; | |
3684 | return false; | |
3685 | } | |
3686 | ||
3687 | /* Read in the armap. */ | |
3688 | ardata = bfd_ardata (abfd); | |
3689 | mapdata = snarf_ar_hdr (abfd); | |
3690 | if (mapdata == (struct areltdata *) NULL) | |
3691 | return false; | |
3692 | parsed_size = mapdata->parsed_size; | |
3693 | bfd_release (abfd, (PTR) mapdata); | |
3694 | ||
3695 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
3696 | if (raw_armap == (char *) NULL) | |
3697 | { | |
3698 | bfd_error = no_memory; | |
3699 | return false; | |
3700 | } | |
3701 | ||
3702 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
3703 | { | |
3704 | bfd_error = malformed_archive; | |
3705 | bfd_release (abfd, (PTR) raw_armap); | |
3706 | return false; | |
3707 | } | |
3708 | ||
3709 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); | |
3710 | ||
3711 | ardata->symdef_count = 0; | |
3712 | ardata->cache = (struct ar_cache *) NULL; | |
3713 | ||
48edba81 ILT |
3714 | /* This code used to overlay the symdefs over the raw archive data, |
3715 | but that doesn't work on a 64 bit host. */ | |
3716 | ||
e544ed4f | 3717 | stringbase = raw_armap + count * 8 + 8; |
dae31cf5 ILT |
3718 | |
3719 | #ifdef CHECK_ARMAP_HASH | |
3720 | { | |
3721 | unsigned int hlog; | |
3722 | ||
3723 | /* Double check that I have the hashing algorithm right by making | |
3724 | sure that every symbol can be looked up successfully. */ | |
3725 | hlog = 0; | |
3726 | for (i = 1; i < count; i <<= 1) | |
3727 | hlog++; | |
3728 | BFD_ASSERT (i == count); | |
3729 | ||
e544ed4f ILT |
3730 | raw_ptr = raw_armap + 4; |
3731 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3732 | { |
3733 | unsigned int name_offset, file_offset; | |
3734 | unsigned int hash, rehash, srch; | |
3735 | ||
3736 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
e544ed4f | 3737 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3738 | if (file_offset == 0) |
3739 | continue; | |
3740 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3741 | hlog); | |
3742 | if (hash == i) | |
3743 | continue; | |
3744 | ||
3745 | /* See if we can rehash to this location. */ | |
3746 | for (srch = (hash + rehash) & (count - 1); | |
3747 | srch != hash && srch != i; | |
3748 | srch = (srch + rehash) & (count - 1)) | |
e544ed4f | 3749 | BFD_ASSERT (bfd_h_get_32 (abfd, (PTR) (raw_armap + 8 + srch * 8)) |
dae31cf5 ILT |
3750 | != 0); |
3751 | BFD_ASSERT (srch == i); | |
3752 | } | |
3753 | } | |
3754 | ||
dae31cf5 ILT |
3755 | #endif /* CHECK_ARMAP_HASH */ |
3756 | ||
e544ed4f ILT |
3757 | raw_ptr = raw_armap + 4; |
3758 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3759 | if (bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)) != 0) | |
48edba81 ILT |
3760 | ++ardata->symdef_count; |
3761 | ||
3762 | symdef_ptr = ((struct symdef *) | |
3763 | bfd_alloc (abfd, | |
3764 | ardata->symdef_count * sizeof (struct symdef))); | |
3765 | ardata->symdefs = (carsym *) symdef_ptr; | |
3766 | ||
e544ed4f ILT |
3767 | raw_ptr = raw_armap + 4; |
3768 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3769 | { |
3770 | unsigned int name_offset, file_offset; | |
3771 | ||
e544ed4f | 3772 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3773 | if (file_offset == 0) |
3774 | continue; | |
48edba81 | 3775 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); |
dae31cf5 ILT |
3776 | symdef_ptr->s.name = stringbase + name_offset; |
3777 | symdef_ptr->file_offset = file_offset; | |
3778 | ++symdef_ptr; | |
dae31cf5 ILT |
3779 | } |
3780 | ||
3781 | ardata->first_file_filepos = bfd_tell (abfd); | |
3782 | /* Pad to an even boundary. */ | |
3783 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3784 | ||
3785 | bfd_has_map (abfd) = true; | |
3786 | ||
3787 | return true; | |
3788 | } | |
3789 | ||
3790 | /* Write out an armap. */ | |
3791 | ||
3792 | boolean | |
3793 | ecoff_write_armap (abfd, elength, map, orl_count, stridx) | |
3794 | bfd *abfd; | |
3795 | unsigned int elength; | |
3796 | struct orl *map; | |
3797 | unsigned int orl_count; | |
3798 | int stridx; | |
3799 | { | |
3800 | unsigned int hashsize, hashlog; | |
3801 | unsigned int symdefsize; | |
3802 | int padit; | |
3803 | unsigned int stringsize; | |
3804 | unsigned int mapsize; | |
3805 | file_ptr firstreal; | |
3806 | struct ar_hdr hdr; | |
3807 | struct stat statbuf; | |
3808 | unsigned int i; | |
e544ed4f | 3809 | bfd_byte temp[4]; |
dae31cf5 ILT |
3810 | bfd_byte *hashtable; |
3811 | bfd *current; | |
3812 | bfd *last_elt; | |
3813 | ||
3814 | /* Ultrix appears to use as a hash table size the least power of two | |
3815 | greater than twice the number of entries. */ | |
3816 | for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) | |
3817 | ; | |
3818 | hashsize = 1 << hashlog; | |
3819 | ||
e544ed4f | 3820 | symdefsize = hashsize * 8; |
dae31cf5 ILT |
3821 | padit = stridx % 2; |
3822 | stringsize = stridx + padit; | |
3823 | ||
3824 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
e544ed4f | 3825 | mapsize = symdefsize + stringsize + 8; |
dae31cf5 ILT |
3826 | |
3827 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3828 | ||
3829 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3830 | ||
3831 | /* Work out the ECOFF armap name. */ | |
48edba81 | 3832 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); |
dae31cf5 ILT |
3833 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; |
3834 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3835 | (abfd->xvec->header_byteorder_big_p | |
3836 | ? ARMAP_BIG_ENDIAN | |
3837 | : ARMAP_LITTLE_ENDIAN); | |
3838 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3839 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3840 | abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3841 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3842 | ||
3843 | /* Write the timestamp of the archive header to be just a little bit | |
3844 | later than the timestamp of the file, otherwise the linker will | |
3845 | complain that the index is out of date. Actually, the Ultrix | |
3846 | linker just checks the archive name; the GNU linker may check the | |
3847 | date. */ | |
3848 | stat (abfd->filename, &statbuf); | |
3849 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3850 | ||
3851 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3852 | armap. */ | |
3853 | hdr.ar_uid[0] = '0'; | |
3854 | hdr.ar_gid[0] = '0'; | |
3855 | hdr.ar_mode[0] = '0'; | |
3856 | ||
3857 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3858 | ||
3859 | hdr.ar_fmag[0] = '`'; | |
3860 | hdr.ar_fmag[1] = '\n'; | |
3861 | ||
3862 | /* Turn all null bytes in the header into spaces. */ | |
3863 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3864 | if (((char *)(&hdr))[i] == '\0') | |
3865 | (((char *)(&hdr))[i]) = ' '; | |
3866 | ||
3867 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) | |
3868 | != sizeof (struct ar_hdr)) | |
3869 | return false; | |
3870 | ||
3871 | bfd_h_put_32 (abfd, hashsize, temp); | |
e544ed4f | 3872 | if (bfd_write (temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3873 | return false; |
3874 | ||
3875 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); | |
3876 | ||
3877 | current = abfd->archive_head; | |
3878 | last_elt = current; | |
3879 | for (i = 0; i < orl_count; i++) | |
3880 | { | |
3881 | unsigned int hash, rehash; | |
3882 | ||
3883 | /* Advance firstreal to the file position of this archive | |
3884 | element. */ | |
3885 | if (((bfd *) map[i].pos) != last_elt) | |
3886 | { | |
3887 | do | |
3888 | { | |
3889 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3890 | firstreal += firstreal % 2; | |
3891 | current = current->next; | |
3892 | } | |
3893 | while (current != (bfd *) map[i].pos); | |
3894 | } | |
3895 | ||
3896 | last_elt = current; | |
3897 | ||
3898 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); | |
e544ed4f | 3899 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (hash * 8) + 4)) != 0) |
dae31cf5 ILT |
3900 | { |
3901 | unsigned int srch; | |
3902 | ||
3903 | /* The desired slot is already taken. */ | |
3904 | for (srch = (hash + rehash) & (hashsize - 1); | |
3905 | srch != hash; | |
3906 | srch = (srch + rehash) & (hashsize - 1)) | |
e544ed4f | 3907 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (srch * 8) + 4)) == 0) |
dae31cf5 ILT |
3908 | break; |
3909 | ||
3910 | BFD_ASSERT (srch != hash); | |
3911 | ||
3912 | hash = srch; | |
3913 | } | |
3914 | ||
e544ed4f ILT |
3915 | bfd_h_put_32 (abfd, map[i].namidx, (PTR) (hashtable + hash * 8)); |
3916 | bfd_h_put_32 (abfd, firstreal, (PTR) (hashtable + hash * 8 + 4)); | |
dae31cf5 ILT |
3917 | } |
3918 | ||
3919 | if (bfd_write (hashtable, 1, symdefsize, abfd) != symdefsize) | |
3920 | return false; | |
3921 | ||
3922 | bfd_release (abfd, hashtable); | |
3923 | ||
3924 | /* Now write the strings. */ | |
3925 | bfd_h_put_32 (abfd, stringsize, temp); | |
e544ed4f | 3926 | if (bfd_write (temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3927 | return false; |
3928 | for (i = 0; i < orl_count; i++) | |
3929 | { | |
3930 | bfd_size_type len; | |
3931 | ||
3932 | len = strlen (*map[i].name) + 1; | |
3933 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3934 | return false; | |
3935 | } | |
3936 | ||
3937 | /* The spec sez this should be a newline. But in order to be | |
3938 | bug-compatible for DECstation ar we use a null. */ | |
3939 | if (padit) | |
3940 | { | |
3941 | if (bfd_write ("\0", 1, 1, abfd) != 1) | |
3942 | return false; | |
3943 | } | |
3944 | ||
3945 | return true; | |
3946 | } | |
3947 | ||
3948 | /* See whether this BFD is an archive. If it is, read in the armap | |
3949 | and the extended name table. */ | |
3950 | ||
3951 | bfd_target * | |
3952 | ecoff_archive_p (abfd) | |
3953 | bfd *abfd; | |
3954 | { | |
3955 | char armag[SARMAG + 1]; | |
3956 | ||
3957 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG | |
3958 | || strncmp (armag, ARMAG, SARMAG) != 0) | |
3959 | { | |
3960 | bfd_error = wrong_format; | |
3961 | return (bfd_target *) NULL; | |
3962 | } | |
3963 | ||
3964 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3965 | involves a cast, we can't do it as the left operand of | |
3966 | assignment. */ | |
3967 | abfd->tdata.aout_ar_data = | |
3968 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3969 | ||
3970 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3971 | { | |
3972 | bfd_error = no_memory; | |
3973 | return (bfd_target *) NULL; | |
3974 | } | |
3975 | ||
3976 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
3977 | ||
3978 | if (ecoff_slurp_armap (abfd) == false | |
3979 | || ecoff_slurp_extended_name_table (abfd) == false) | |
3980 | { | |
3981 | bfd_release (abfd, bfd_ardata (abfd)); | |
3982 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
3983 | return (bfd_target *) NULL; | |
3984 | } | |
3985 | ||
3986 | return abfd->xvec; | |
3987 | } |