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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" | |
4c3721d5 | 24 | #include "bfdlink.h" |
dae31cf5 | 25 | #include "libbfd.h" |
dae31cf5 ILT |
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)); |
966e0a16 | 48 | static boolean ecoff_slurp_symbolic_header PARAMS ((bfd *abfd)); |
dae31cf5 ILT |
49 | static void ecoff_set_symbol_info PARAMS ((bfd *abfd, SYMR *ecoff_sym, |
50 | asymbol *asym, int ext, | |
51 | asymbol **indirect_ptr_ptr)); | |
52 | static void ecoff_emit_aggregate PARAMS ((bfd *abfd, char *string, | |
53 | RNDXR *rndx, long isym, | |
54 | CONST char *which)); | |
55 | static char *ecoff_type_to_string PARAMS ((bfd *abfd, union aux_ext *aux_ptr, | |
56 | unsigned int indx, int bigendian)); | |
dae31cf5 ILT |
57 | static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section, |
58 | asymbol **symbols)); | |
dae31cf5 | 59 | static void ecoff_compute_section_file_positions PARAMS ((bfd *abfd)); |
966e0a16 | 60 | static bfd_size_type ecoff_compute_reloc_file_positions PARAMS ((bfd *abfd)); |
8d12f138 ILT |
61 | static boolean ecoff_get_extr PARAMS ((asymbol *, EXTR *)); |
62 | static void ecoff_set_index PARAMS ((asymbol *, bfd_size_type)); | |
dae31cf5 ILT |
63 | static unsigned int ecoff_armap_hash PARAMS ((CONST char *s, |
64 | unsigned int *rehash, | |
65 | unsigned int size, | |
66 | unsigned int hlog)); | |
67 | \f | |
dae31cf5 ILT |
68 | /* This stuff is somewhat copied from coffcode.h. */ |
69 | ||
70 | static asection bfd_debug_section = { "*DEBUG*" }; | |
71 | ||
48edba81 ILT |
72 | /* Create an ECOFF object. */ |
73 | ||
74 | boolean | |
75 | ecoff_mkobject (abfd) | |
76 | bfd *abfd; | |
77 | { | |
78 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
79 | bfd_zalloc (abfd, sizeof (ecoff_data_type))); | |
80 | if (abfd->tdata.ecoff_obj_data == NULL) | |
81 | { | |
82 | bfd_error = no_memory; | |
83 | return false; | |
84 | } | |
85 | ||
48edba81 ILT |
86 | return true; |
87 | } | |
88 | ||
a7853216 ILT |
89 | /* This is a hook called by coff_real_object_p to create any backend |
90 | specific information. */ | |
91 | ||
92 | PTR | |
93 | ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
94 | bfd *abfd; | |
95 | PTR filehdr; | |
96 | PTR aouthdr; | |
97 | { | |
98 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
99 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; | |
100 | ecoff_data_type *ecoff; | |
101 | asection *regsec; | |
102 | ||
103 | if (ecoff_mkobject (abfd) == false) | |
104 | return NULL; | |
105 | ||
106 | ecoff = ecoff_data (abfd); | |
107 | ecoff->gp_size = 8; | |
108 | ecoff->sym_filepos = internal_f->f_symptr; | |
109 | ||
110 | /* Create the .reginfo section to give programs outside BFD a way to | |
111 | see the information stored in the a.out header. See the comment | |
112 | in coff/ecoff.h. */ | |
113 | regsec = bfd_make_section (abfd, REGINFO); | |
114 | if (regsec == NULL) | |
115 | return NULL; | |
116 | ||
117 | if (internal_a != (struct internal_aouthdr *) NULL) | |
118 | { | |
119 | int i; | |
120 | ||
121 | ecoff->text_start = internal_a->text_start; | |
122 | ecoff->text_end = internal_a->text_start + internal_a->tsize; | |
123 | ecoff->gp = internal_a->gp_value; | |
124 | ecoff->gprmask = internal_a->gprmask; | |
125 | for (i = 0; i < 4; i++) | |
126 | ecoff->cprmask[i] = internal_a->cprmask[i]; | |
127 | ecoff->fprmask = internal_a->fprmask; | |
128 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) | |
129 | abfd->flags |= D_PAGED; | |
130 | } | |
131 | ||
132 | /* It turns out that no special action is required by the MIPS or | |
133 | Alpha ECOFF backends. They have different information in the | |
134 | a.out header, but we just copy it all (e.g., gprmask, cprmask and | |
135 | fprmask) and let the swapping routines ensure that only relevant | |
136 | information is written out. */ | |
137 | ||
138 | return (PTR) ecoff; | |
139 | } | |
140 | ||
dae31cf5 ILT |
141 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ |
142 | ||
728472f1 | 143 | /*ARGSUSED*/ |
dae31cf5 ILT |
144 | asection * |
145 | ecoff_make_section_hook (abfd, name) | |
146 | bfd *abfd; | |
147 | char *name; | |
148 | { | |
149 | return (asection *) NULL; | |
150 | } | |
151 | ||
152 | /* Initialize a new section. */ | |
153 | ||
154 | boolean | |
155 | ecoff_new_section_hook (abfd, section) | |
156 | bfd *abfd; | |
157 | asection *section; | |
158 | { | |
3f048f7f ILT |
159 | /* For the .pdata section, which has a special meaning on the Alpha, |
160 | we set the alignment to 8. We correct this later in | |
161 | ecoff_compute_section_file_positions. We do this hackery because | |
162 | we need to know the exact unaligned size of the .pdata section in | |
163 | order to set the lnnoptr field correctly. */ | |
164 | if (strcmp (section->name, _PDATA) == 0) | |
165 | section->alignment_power = 3; | |
166 | else | |
167 | section->alignment_power = abfd->xvec->align_power_min; | |
dae31cf5 ILT |
168 | |
169 | if (strcmp (section->name, _TEXT) == 0) | |
170 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
171 | else if (strcmp (section->name, _DATA) == 0 | |
172 | || strcmp (section->name, _SDATA) == 0) | |
173 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
174 | else if (strcmp (section->name, _RDATA) == 0 | |
175 | || strcmp (section->name, _LIT8) == 0 | |
176 | || strcmp (section->name, _LIT4) == 0) | |
177 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
178 | else if (strcmp (section->name, _BSS) == 0 | |
179 | || strcmp (section->name, _SBSS) == 0) | |
180 | section->flags |= SEC_ALLOC; | |
a7853216 ILT |
181 | else if (strcmp (section->name, REGINFO) == 0) |
182 | { | |
a5a835ff ILT |
183 | /* Setting SEC_SHARED_LIBRARY should make the linker leave the |
184 | section completely alone. */ | |
185 | section->flags |= (SEC_SHARED_LIBRARY | |
186 | | SEC_HAS_CONTENTS | |
187 | | SEC_NEVER_LOAD); | |
a7853216 ILT |
188 | section->_raw_size = sizeof (struct ecoff_reginfo); |
189 | } | |
dae31cf5 ILT |
190 | |
191 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
192 | uncertain about .init on some systems and I don't know how shared | |
193 | libraries work. */ | |
194 | ||
195 | return true; | |
196 | } | |
197 | ||
a7853216 ILT |
198 | /* Determine the machine architecture and type. This is called from |
199 | the generic COFF routines. It is the inverse of ecoff_get_magic, | |
200 | below. This could be an ECOFF backend routine, with one version | |
201 | for each target, but there aren't all that many ECOFF targets. */ | |
dae31cf5 ILT |
202 | |
203 | boolean | |
204 | ecoff_set_arch_mach_hook (abfd, filehdr) | |
205 | bfd *abfd; | |
206 | PTR filehdr; | |
207 | { | |
208 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
209 | enum bfd_architecture arch; | |
a7853216 | 210 | unsigned long mach; |
dae31cf5 ILT |
211 | |
212 | switch (internal_f->f_magic) | |
213 | { | |
214 | case MIPS_MAGIC_1: | |
215 | case MIPS_MAGIC_LITTLE: | |
216 | case MIPS_MAGIC_BIG: | |
217 | arch = bfd_arch_mips; | |
a7853216 ILT |
218 | mach = 3000; |
219 | break; | |
220 | ||
221 | case MIPS_MAGIC_LITTLE2: | |
222 | case MIPS_MAGIC_BIG2: | |
223 | /* MIPS ISA level 2: the r6000 */ | |
224 | arch = bfd_arch_mips; | |
225 | mach = 6000; | |
226 | break; | |
227 | ||
228 | case MIPS_MAGIC_LITTLE3: | |
229 | case MIPS_MAGIC_BIG3: | |
230 | /* MIPS ISA level 3: the r4000 */ | |
231 | arch = bfd_arch_mips; | |
232 | mach = 4000; | |
dae31cf5 ILT |
233 | break; |
234 | ||
235 | case ALPHA_MAGIC: | |
236 | arch = bfd_arch_alpha; | |
a7853216 | 237 | mach = 0; |
dae31cf5 ILT |
238 | break; |
239 | ||
240 | default: | |
241 | arch = bfd_arch_obscure; | |
a7853216 | 242 | mach = 0; |
dae31cf5 ILT |
243 | break; |
244 | } | |
245 | ||
a7853216 ILT |
246 | return bfd_default_set_arch_mach (abfd, arch, mach); |
247 | } | |
dae31cf5 | 248 | |
a7853216 ILT |
249 | /* Get the magic number to use based on the architecture and machine. |
250 | This is the inverse of ecoff_set_arch_mach_hook, above. */ | |
251 | ||
252 | static int | |
253 | ecoff_get_magic (abfd) | |
254 | bfd *abfd; | |
255 | { | |
256 | int big, little; | |
257 | ||
258 | switch (bfd_get_arch (abfd)) | |
259 | { | |
260 | case bfd_arch_mips: | |
261 | switch (bfd_get_mach (abfd)) | |
262 | { | |
263 | default: | |
264 | case 0: | |
265 | case 3000: | |
266 | big = MIPS_MAGIC_BIG; | |
267 | little = MIPS_MAGIC_LITTLE; | |
268 | break; | |
269 | ||
270 | case 6000: | |
271 | big = MIPS_MAGIC_BIG2; | |
272 | little = MIPS_MAGIC_LITTLE2; | |
273 | break; | |
274 | ||
275 | case 4000: | |
276 | big = MIPS_MAGIC_BIG3; | |
277 | little = MIPS_MAGIC_LITTLE3; | |
278 | break; | |
279 | } | |
280 | ||
281 | return abfd->xvec->byteorder_big_p ? big : little; | |
282 | ||
283 | case bfd_arch_alpha: | |
284 | return ALPHA_MAGIC; | |
285 | ||
286 | default: | |
287 | abort (); | |
288 | return 0; | |
289 | } | |
dae31cf5 ILT |
290 | } |
291 | ||
292 | /* Get the section s_flags to use for a section. */ | |
293 | ||
294 | long | |
295 | ecoff_sec_to_styp_flags (name, flags) | |
296 | CONST char *name; | |
297 | flagword flags; | |
298 | { | |
299 | long styp; | |
300 | ||
301 | styp = 0; | |
302 | ||
303 | if (strcmp (name, _TEXT) == 0) | |
304 | styp = STYP_TEXT; | |
305 | else if (strcmp (name, _DATA) == 0) | |
306 | styp = STYP_DATA; | |
307 | else if (strcmp (name, _SDATA) == 0) | |
308 | styp = STYP_SDATA; | |
309 | else if (strcmp (name, _RDATA) == 0) | |
310 | styp = STYP_RDATA; | |
c9668c58 ILT |
311 | else if (strcmp (name, _LITA) == 0) |
312 | styp = STYP_LITA; | |
dae31cf5 ILT |
313 | else if (strcmp (name, _LIT8) == 0) |
314 | styp = STYP_LIT8; | |
315 | else if (strcmp (name, _LIT4) == 0) | |
316 | styp = STYP_LIT4; | |
317 | else if (strcmp (name, _BSS) == 0) | |
318 | styp = STYP_BSS; | |
319 | else if (strcmp (name, _SBSS) == 0) | |
320 | styp = STYP_SBSS; | |
321 | else if (strcmp (name, _INIT) == 0) | |
322 | styp = STYP_ECOFF_INIT; | |
a7853216 ILT |
323 | else if (strcmp (name, _FINI) == 0) |
324 | styp = STYP_ECOFF_FINI; | |
966e0a16 ILT |
325 | else if (strcmp (name, _PDATA) == 0) |
326 | styp = STYP_PDATA; | |
327 | else if (strcmp (name, _XDATA) == 0) | |
328 | styp = STYP_XDATA; | |
dae31cf5 ILT |
329 | else if (flags & SEC_CODE) |
330 | styp = STYP_TEXT; | |
331 | else if (flags & SEC_DATA) | |
332 | styp = STYP_DATA; | |
333 | else if (flags & SEC_READONLY) | |
334 | styp = STYP_RDATA; | |
335 | else if (flags & SEC_LOAD) | |
336 | styp = STYP_REG; | |
337 | else | |
338 | styp = STYP_BSS; | |
339 | ||
340 | if (flags & SEC_NEVER_LOAD) | |
341 | styp |= STYP_NOLOAD; | |
342 | ||
343 | return styp; | |
344 | } | |
345 | ||
346 | /* Get the BFD flags to use for a section. */ | |
347 | ||
728472f1 | 348 | /*ARGSUSED*/ |
dae31cf5 ILT |
349 | flagword |
350 | ecoff_styp_to_sec_flags (abfd, hdr) | |
351 | bfd *abfd; | |
352 | PTR hdr; | |
353 | { | |
354 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
355 | long styp_flags = internal_s->s_flags; | |
356 | flagword sec_flags=0; | |
357 | ||
358 | if (styp_flags & STYP_NOLOAD) | |
359 | sec_flags |= SEC_NEVER_LOAD; | |
360 | ||
361 | /* For 386 COFF, at least, an unloadable text or data section is | |
362 | actually a shared library section. */ | |
363 | if ((styp_flags & STYP_TEXT) | |
a7853216 ILT |
364 | || (styp_flags & STYP_ECOFF_INIT) |
365 | || (styp_flags & STYP_ECOFF_FINI)) | |
dae31cf5 ILT |
366 | { |
367 | if (sec_flags & SEC_NEVER_LOAD) | |
368 | sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; | |
369 | else | |
370 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
371 | } | |
372 | else if ((styp_flags & STYP_DATA) | |
373 | || (styp_flags & STYP_RDATA) | |
374 | || (styp_flags & STYP_SDATA)) | |
375 | { | |
376 | if (sec_flags & SEC_NEVER_LOAD) | |
377 | sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; | |
378 | else | |
379 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
380 | if (styp_flags & STYP_RDATA) | |
381 | sec_flags |= SEC_READONLY; | |
382 | } | |
383 | else if ((styp_flags & STYP_BSS) | |
384 | || (styp_flags & STYP_SBSS)) | |
385 | { | |
386 | sec_flags |= SEC_ALLOC; | |
387 | } | |
388 | else if (styp_flags & STYP_INFO) | |
389 | { | |
390 | sec_flags |= SEC_NEVER_LOAD; | |
391 | } | |
c9668c58 ILT |
392 | else if ((styp_flags & STYP_LITA) |
393 | || (styp_flags & STYP_LIT8) | |
dae31cf5 ILT |
394 | || (styp_flags & STYP_LIT4)) |
395 | { | |
396 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
397 | } | |
398 | else | |
399 | { | |
400 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
401 | } | |
402 | ||
403 | return sec_flags; | |
404 | } | |
405 | \f | |
406 | /* Routines to swap auxiliary information in and out. I am assuming | |
407 | that the auxiliary information format is always going to be target | |
408 | independent. */ | |
409 | ||
410 | /* Swap in a type information record. | |
411 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
412 | info comes from the file header record (fh-fBigendian). */ | |
413 | ||
414 | void | |
415 | ecoff_swap_tir_in (bigend, ext_copy, intern) | |
416 | int bigend; | |
417 | struct tir_ext *ext_copy; | |
418 | TIR *intern; | |
419 | { | |
420 | struct tir_ext ext[1]; | |
421 | ||
422 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
423 | ||
424 | /* now the fun stuff... */ | |
425 | if (bigend) { | |
426 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_BIG); | |
427 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_BIG); | |
428 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_BIG) | |
429 | >> TIR_BITS1_BT_SH_BIG; | |
430 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_BIG) | |
431 | >> TIR_BITS_TQ4_SH_BIG; | |
432 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_BIG) | |
433 | >> TIR_BITS_TQ5_SH_BIG; | |
434 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_BIG) | |
435 | >> TIR_BITS_TQ0_SH_BIG; | |
436 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_BIG) | |
437 | >> TIR_BITS_TQ1_SH_BIG; | |
438 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_BIG) | |
439 | >> TIR_BITS_TQ2_SH_BIG; | |
440 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_BIG) | |
441 | >> TIR_BITS_TQ3_SH_BIG; | |
442 | } else { | |
443 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_LITTLE); | |
444 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_LITTLE); | |
445 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_LITTLE) | |
446 | >> TIR_BITS1_BT_SH_LITTLE; | |
447 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_LITTLE) | |
448 | >> TIR_BITS_TQ4_SH_LITTLE; | |
449 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_LITTLE) | |
450 | >> TIR_BITS_TQ5_SH_LITTLE; | |
451 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_LITTLE) | |
452 | >> TIR_BITS_TQ0_SH_LITTLE; | |
453 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_LITTLE) | |
454 | >> TIR_BITS_TQ1_SH_LITTLE; | |
455 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_LITTLE) | |
456 | >> TIR_BITS_TQ2_SH_LITTLE; | |
457 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_LITTLE) | |
458 | >> TIR_BITS_TQ3_SH_LITTLE; | |
459 | } | |
460 | ||
461 | #ifdef TEST | |
462 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
463 | abort(); | |
464 | #endif | |
465 | } | |
466 | ||
467 | /* Swap out a type information record. | |
468 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
469 | info comes from the file header record (fh-fBigendian). */ | |
470 | ||
471 | void | |
472 | ecoff_swap_tir_out (bigend, intern_copy, ext) | |
473 | int bigend; | |
474 | TIR *intern_copy; | |
475 | struct tir_ext *ext; | |
476 | { | |
477 | TIR intern[1]; | |
478 | ||
479 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
480 | ||
481 | /* now the fun stuff... */ | |
482 | if (bigend) { | |
483 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_BIG : 0) | |
484 | | (intern->continued ? TIR_BITS1_CONTINUED_BIG : 0) | |
485 | | ((intern->bt << TIR_BITS1_BT_SH_BIG) | |
486 | & TIR_BITS1_BT_BIG)); | |
487 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_BIG) | |
488 | & TIR_BITS_TQ4_BIG) | |
489 | | ((intern->tq5 << TIR_BITS_TQ5_SH_BIG) | |
490 | & TIR_BITS_TQ5_BIG)); | |
491 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_BIG) | |
492 | & TIR_BITS_TQ0_BIG) | |
493 | | ((intern->tq1 << TIR_BITS_TQ1_SH_BIG) | |
494 | & TIR_BITS_TQ1_BIG)); | |
495 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_BIG) | |
496 | & TIR_BITS_TQ2_BIG) | |
497 | | ((intern->tq3 << TIR_BITS_TQ3_SH_BIG) | |
498 | & TIR_BITS_TQ3_BIG)); | |
499 | } else { | |
500 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_LITTLE : 0) | |
501 | | (intern->continued ? TIR_BITS1_CONTINUED_LITTLE : 0) | |
502 | | ((intern->bt << TIR_BITS1_BT_SH_LITTLE) | |
503 | & TIR_BITS1_BT_LITTLE)); | |
504 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_LITTLE) | |
505 | & TIR_BITS_TQ4_LITTLE) | |
506 | | ((intern->tq5 << TIR_BITS_TQ5_SH_LITTLE) | |
507 | & TIR_BITS_TQ5_LITTLE)); | |
508 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_LITTLE) | |
509 | & TIR_BITS_TQ0_LITTLE) | |
510 | | ((intern->tq1 << TIR_BITS_TQ1_SH_LITTLE) | |
511 | & TIR_BITS_TQ1_LITTLE)); | |
512 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_LITTLE) | |
513 | & TIR_BITS_TQ2_LITTLE) | |
514 | | ((intern->tq3 << TIR_BITS_TQ3_SH_LITTLE) | |
515 | & TIR_BITS_TQ3_LITTLE)); | |
516 | } | |
517 | ||
518 | #ifdef TEST | |
519 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
520 | abort(); | |
521 | #endif | |
522 | } | |
523 | ||
524 | /* Swap in a relative symbol record. BIGEND says whether it is in | |
525 | big-endian or little-endian format.*/ | |
526 | ||
527 | void | |
528 | ecoff_swap_rndx_in (bigend, ext_copy, intern) | |
529 | int bigend; | |
530 | struct rndx_ext *ext_copy; | |
531 | RNDXR *intern; | |
532 | { | |
533 | struct rndx_ext ext[1]; | |
534 | ||
535 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
536 | ||
537 | /* now the fun stuff... */ | |
538 | if (bigend) { | |
539 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_BIG) | |
540 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_BIG) | |
541 | >> RNDX_BITS1_RFD_SH_BIG); | |
542 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_BIG) | |
543 | << RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
544 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_BIG) | |
545 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_BIG); | |
546 | } else { | |
547 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_LITTLE) | |
548 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_LITTLE) | |
549 | << RNDX_BITS1_RFD_SH_LEFT_LITTLE); | |
550 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_LITTLE) | |
551 | >> RNDX_BITS1_INDEX_SH_LITTLE) | |
552 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_LITTLE) | |
553 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_LITTLE); | |
554 | } | |
555 | ||
556 | #ifdef TEST | |
557 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
558 | abort(); | |
559 | #endif | |
560 | } | |
561 | ||
562 | /* Swap out a relative symbol record. BIGEND says whether it is in | |
563 | big-endian or little-endian format.*/ | |
564 | ||
565 | void | |
566 | ecoff_swap_rndx_out (bigend, intern_copy, ext) | |
567 | int bigend; | |
568 | RNDXR *intern_copy; | |
569 | struct rndx_ext *ext; | |
570 | { | |
571 | RNDXR intern[1]; | |
572 | ||
573 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
574 | ||
575 | /* now the fun stuff... */ | |
576 | if (bigend) { | |
577 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_BIG; | |
578 | ext->r_bits[1] = (((intern->rfd << RNDX_BITS1_RFD_SH_BIG) | |
579 | & RNDX_BITS1_RFD_BIG) | |
580 | | ((intern->index >> RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
581 | & RNDX_BITS1_INDEX_BIG)); | |
582 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_BIG; | |
583 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_BIG; | |
584 | } else { | |
585 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_LITTLE; | |
586 | ext->r_bits[1] = (((intern->rfd >> RNDX_BITS1_RFD_SH_LEFT_LITTLE) | |
587 | & RNDX_BITS1_RFD_LITTLE) | |
588 | | ((intern->index << RNDX_BITS1_INDEX_SH_LITTLE) | |
589 | & RNDX_BITS1_INDEX_LITTLE)); | |
590 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_LITTLE; | |
591 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_LITTLE; | |
592 | } | |
593 | ||
594 | #ifdef TEST | |
595 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
596 | abort(); | |
597 | #endif | |
598 | } | |
599 | \f | |
966e0a16 | 600 | /* Read in the symbolic header for an ECOFF object file. */ |
dae31cf5 | 601 | |
966e0a16 ILT |
602 | static boolean |
603 | ecoff_slurp_symbolic_header (abfd) | |
dae31cf5 ILT |
604 | bfd *abfd; |
605 | { | |
606 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
607 | bfd_size_type external_hdr_size; | |
dae31cf5 | 608 | PTR raw; |
966e0a16 | 609 | HDRR *internal_symhdr; |
dae31cf5 | 610 | |
966e0a16 ILT |
611 | /* See if we've already read it in. */ |
612 | if (ecoff_data (abfd)->debug_info.symbolic_header.magic == | |
613 | backend->debug_swap.sym_magic) | |
dae31cf5 | 614 | return true; |
966e0a16 ILT |
615 | |
616 | /* See whether there is a symbolic header. */ | |
dae31cf5 ILT |
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. */ | |
c9668c58 | 627 | external_hdr_size = backend->debug_swap.external_hdr_size; |
dae31cf5 ILT |
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. */ | |
966e0a16 | 635 | raw = (PTR) alloca ((size_t) external_hdr_size); |
dae31cf5 ILT |
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 | } | |
c9668c58 ILT |
643 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
644 | (*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr); | |
dae31cf5 | 645 | |
c9668c58 | 646 | if (internal_symhdr->magic != backend->debug_swap.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 | ||
966e0a16 ILT |
656 | return true; |
657 | } | |
658 | ||
659 | /* Read in and swap the important symbolic information for an ECOFF | |
660 | object file. This is called by gdb. */ | |
661 | ||
662 | boolean | |
663 | ecoff_slurp_symbolic_info (abfd) | |
664 | bfd *abfd; | |
665 | { | |
666 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
667 | HDRR *internal_symhdr; | |
668 | bfd_size_type raw_base; | |
669 | bfd_size_type raw_size; | |
670 | PTR raw; | |
671 | bfd_size_type external_fdr_size; | |
672 | char *fraw_src; | |
673 | char *fraw_end; | |
674 | struct fdr *fdr_ptr; | |
675 | bfd_size_type raw_end; | |
676 | bfd_size_type cb_end; | |
677 | ||
678 | /* Check whether we've already gotten it, and whether there's any to | |
679 | get. */ | |
680 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
681 | return true; | |
682 | if (ecoff_data (abfd)->sym_filepos == 0) | |
683 | { | |
684 | bfd_get_symcount (abfd) = 0; | |
685 | return true; | |
686 | } | |
687 | ||
688 | if (! ecoff_slurp_symbolic_header (abfd)) | |
689 | return false; | |
690 | ||
691 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
692 | ||
dae31cf5 | 693 | /* Read all the symbolic information at once. */ |
966e0a16 ILT |
694 | raw_base = (ecoff_data (abfd)->sym_filepos |
695 | + backend->debug_swap.external_hdr_size); | |
dae31cf5 | 696 | |
a7853216 ILT |
697 | /* Alpha ecoff makes the determination of raw_size difficult. It has |
698 | an undocumented debug data section between the symhdr and the first | |
699 | documented section. And the ordering of the sections varies between | |
700 | statically and dynamically linked executables. | |
701 | If bfd supports SEEK_END someday, this code could be simplified. */ | |
702 | ||
703 | raw_end = 0; | |
704 | ||
705 | #define UPDATE_RAW_END(start, count, size) \ | |
706 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ | |
707 | if (cb_end > raw_end) \ | |
708 | raw_end = cb_end | |
709 | ||
710 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); | |
c9668c58 ILT |
711 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size); |
712 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size); | |
713 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size); | |
714 | UPDATE_RAW_END (cbOptOffset, ioptMax, backend->debug_swap.external_opt_size); | |
a7853216 ILT |
715 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); |
716 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); | |
717 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); | |
c9668c58 ILT |
718 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size); |
719 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size); | |
720 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size); | |
a7853216 ILT |
721 | |
722 | #undef UPDATE_RAW_END | |
723 | ||
724 | raw_size = raw_end - raw_base; | |
dae31cf5 ILT |
725 | if (raw_size == 0) |
726 | { | |
727 | ecoff_data (abfd)->sym_filepos = 0; | |
728 | return true; | |
729 | } | |
730 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
731 | if (raw == NULL) | |
732 | { | |
733 | bfd_error = no_memory; | |
734 | return false; | |
735 | } | |
966e0a16 ILT |
736 | if (bfd_seek (abfd, |
737 | (ecoff_data (abfd)->sym_filepos | |
738 | + backend->debug_swap.external_hdr_size), | |
739 | SEEK_SET) != 0 | |
740 | || bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
dae31cf5 ILT |
741 | { |
742 | bfd_error = system_call_error; | |
743 | bfd_release (abfd, raw); | |
744 | return false; | |
745 | } | |
746 | ||
dae31cf5 ILT |
747 | ecoff_data (abfd)->raw_syments = raw; |
748 | ||
749 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
750 | #define FIX(off1, off2, type) \ | |
751 | if (internal_symhdr->off1 == 0) \ | |
c9668c58 | 752 | ecoff_data (abfd)->debug_info.off2 = (type) NULL; \ |
dae31cf5 | 753 | else \ |
c9668c58 ILT |
754 | ecoff_data (abfd)->debug_info.off2 = (type) ((char *) raw \ |
755 | + internal_symhdr->off1 \ | |
756 | - raw_base) | |
dae31cf5 ILT |
757 | FIX (cbLineOffset, line, unsigned char *); |
758 | FIX (cbDnOffset, external_dnr, PTR); | |
759 | FIX (cbPdOffset, external_pdr, PTR); | |
760 | FIX (cbSymOffset, external_sym, PTR); | |
761 | FIX (cbOptOffset, external_opt, PTR); | |
762 | FIX (cbAuxOffset, external_aux, union aux_ext *); | |
763 | FIX (cbSsOffset, ss, char *); | |
764 | FIX (cbSsExtOffset, ssext, char *); | |
765 | FIX (cbFdOffset, external_fdr, PTR); | |
766 | FIX (cbRfdOffset, external_rfd, PTR); | |
767 | FIX (cbExtOffset, external_ext, PTR); | |
768 | #undef FIX | |
769 | ||
770 | /* I don't want to always swap all the data, because it will just | |
771 | waste time and most programs will never look at it. The only | |
772 | time the linker needs most of the debugging information swapped | |
773 | is when linking big-endian and little-endian MIPS object files | |
774 | together, which is not a common occurrence. | |
775 | ||
776 | We need to look at the fdr to deal with a lot of information in | |
777 | the symbols, so we swap them here. */ | |
c9668c58 | 778 | ecoff_data (abfd)->debug_info.fdr = |
dae31cf5 ILT |
779 | (struct fdr *) bfd_alloc (abfd, |
780 | (internal_symhdr->ifdMax * | |
781 | sizeof (struct fdr))); | |
c9668c58 | 782 | if (ecoff_data (abfd)->debug_info.fdr == NULL) |
dae31cf5 ILT |
783 | { |
784 | bfd_error = no_memory; | |
785 | return false; | |
786 | } | |
c9668c58 ILT |
787 | external_fdr_size = backend->debug_swap.external_fdr_size; |
788 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; | |
789 | fraw_src = (char *) ecoff_data (abfd)->debug_info.external_fdr; | |
dae31cf5 ILT |
790 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; |
791 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
c9668c58 | 792 | (*backend->debug_swap.swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); |
dae31cf5 ILT |
793 | |
794 | return true; | |
795 | } | |
796 | \f | |
797 | /* ECOFF symbol table routines. The ECOFF symbol table is described | |
798 | in gcc/mips-tfile.c. */ | |
799 | ||
800 | /* ECOFF uses two common sections. One is the usual one, and the | |
801 | other is for small objects. All the small objects are kept | |
802 | together, and then referenced via the gp pointer, which yields | |
803 | faster assembler code. This is what we use for the small common | |
804 | section. */ | |
805 | static asection ecoff_scom_section; | |
806 | static asymbol ecoff_scom_symbol; | |
807 | static asymbol *ecoff_scom_symbol_ptr; | |
808 | ||
809 | /* Create an empty symbol. */ | |
810 | ||
811 | asymbol * | |
812 | ecoff_make_empty_symbol (abfd) | |
813 | bfd *abfd; | |
814 | { | |
815 | ecoff_symbol_type *new; | |
816 | ||
817 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
818 | if (new == (ecoff_symbol_type *) NULL) | |
819 | { | |
820 | bfd_error = no_memory; | |
821 | return (asymbol *) NULL; | |
822 | } | |
823 | memset (new, 0, sizeof *new); | |
824 | new->symbol.section = (asection *) NULL; | |
825 | new->fdr = (FDR *) NULL; | |
826 | new->local = false; | |
827 | new->native = NULL; | |
828 | new->symbol.the_bfd = abfd; | |
829 | return &new->symbol; | |
830 | } | |
831 | ||
832 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
833 | ||
834 | static void | |
835 | ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, indirect_ptr_ptr) | |
836 | bfd *abfd; | |
837 | SYMR *ecoff_sym; | |
838 | asymbol *asym; | |
839 | int ext; | |
840 | asymbol **indirect_ptr_ptr; | |
841 | { | |
842 | asym->the_bfd = abfd; | |
843 | asym->value = ecoff_sym->value; | |
844 | asym->section = &bfd_debug_section; | |
845 | asym->udata = NULL; | |
846 | ||
847 | /* An indirect symbol requires two consecutive stabs symbols. */ | |
848 | if (*indirect_ptr_ptr != (asymbol *) NULL) | |
849 | { | |
850 | BFD_ASSERT (ECOFF_IS_STAB (ecoff_sym)); | |
851 | ||
852 | /* @@ Stuffing pointers into integers is a no-no. | |
853 | We can usually get away with it if the integer is | |
854 | large enough though. */ | |
855 | if (sizeof (asym) > sizeof (bfd_vma)) | |
856 | abort (); | |
857 | (*indirect_ptr_ptr)->value = (bfd_vma) asym; | |
858 | ||
859 | asym->flags = BSF_DEBUGGING; | |
860 | asym->section = &bfd_und_section; | |
861 | *indirect_ptr_ptr = NULL; | |
862 | return; | |
863 | } | |
864 | ||
865 | if (ECOFF_IS_STAB (ecoff_sym) | |
866 | && (ECOFF_UNMARK_STAB (ecoff_sym->index) | N_EXT) == (N_INDR | N_EXT)) | |
867 | { | |
868 | asym->flags = BSF_DEBUGGING | BSF_INDIRECT; | |
869 | asym->section = &bfd_ind_section; | |
870 | /* Pass this symbol on to the next call to this function. */ | |
871 | *indirect_ptr_ptr = asym; | |
872 | return; | |
873 | } | |
874 | ||
875 | /* Most symbol types are just for debugging. */ | |
876 | switch (ecoff_sym->st) | |
877 | { | |
878 | case stGlobal: | |
879 | case stStatic: | |
880 | case stLabel: | |
881 | case stProc: | |
882 | case stStaticProc: | |
883 | break; | |
884 | case stNil: | |
885 | if (ECOFF_IS_STAB (ecoff_sym)) | |
886 | { | |
887 | asym->flags = BSF_DEBUGGING; | |
888 | return; | |
889 | } | |
890 | break; | |
891 | default: | |
892 | asym->flags = BSF_DEBUGGING; | |
893 | return; | |
894 | } | |
895 | ||
896 | if (ext) | |
897 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
898 | else | |
899 | asym->flags = BSF_LOCAL; | |
900 | switch (ecoff_sym->sc) | |
901 | { | |
902 | case scNil: | |
903 | /* Used for compiler generated labels. Leave them in the | |
904 | debugging section, and mark them as local. If BSF_DEBUGGING | |
905 | is set, then nm does not display them for some reason. If no | |
906 | flags are set then the linker whines about them. */ | |
907 | asym->flags = BSF_LOCAL; | |
908 | break; | |
909 | case scText: | |
910 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
911 | asym->value -= asym->section->vma; | |
912 | break; | |
913 | case scData: | |
914 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
915 | asym->value -= asym->section->vma; | |
916 | break; | |
917 | case scBss: | |
70bec8b8 ILT |
918 | asym->section = bfd_make_section_old_way (abfd, ".bss"); |
919 | asym->value -= asym->section->vma; | |
dae31cf5 ILT |
920 | break; |
921 | case scRegister: | |
922 | asym->flags = BSF_DEBUGGING; | |
923 | break; | |
924 | case scAbs: | |
925 | asym->section = &bfd_abs_section; | |
926 | break; | |
927 | case scUndefined: | |
928 | asym->section = &bfd_und_section; | |
929 | asym->flags = 0; | |
930 | asym->value = 0; | |
931 | break; | |
932 | case scCdbLocal: | |
933 | case scBits: | |
934 | case scCdbSystem: | |
935 | case scRegImage: | |
936 | case scInfo: | |
937 | case scUserStruct: | |
938 | asym->flags = BSF_DEBUGGING; | |
939 | break; | |
940 | case scSData: | |
941 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
942 | asym->value -= asym->section->vma; | |
943 | break; | |
944 | case scSBss: | |
945 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); | |
70bec8b8 | 946 | asym->value -= asym->section->vma; |
dae31cf5 ILT |
947 | break; |
948 | case scRData: | |
949 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
950 | asym->value -= asym->section->vma; | |
951 | break; | |
952 | case scVar: | |
953 | asym->flags = BSF_DEBUGGING; | |
954 | break; | |
955 | case scCommon: | |
956 | if (asym->value > ecoff_data (abfd)->gp_size) | |
957 | { | |
958 | asym->section = &bfd_com_section; | |
959 | asym->flags = 0; | |
960 | break; | |
961 | } | |
962 | /* Fall through. */ | |
963 | case scSCommon: | |
964 | if (ecoff_scom_section.name == NULL) | |
965 | { | |
966 | /* Initialize the small common section. */ | |
967 | ecoff_scom_section.name = SCOMMON; | |
968 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
969 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
970 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
971 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
972 | ecoff_scom_symbol.name = SCOMMON; | |
973 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
974 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
975 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
976 | } | |
977 | asym->section = &ecoff_scom_section; | |
978 | asym->flags = 0; | |
979 | break; | |
980 | case scVarRegister: | |
981 | case scVariant: | |
982 | asym->flags = BSF_DEBUGGING; | |
983 | break; | |
984 | case scSUndefined: | |
985 | asym->section = &bfd_und_section; | |
986 | asym->flags = 0; | |
987 | asym->value = 0; | |
988 | break; | |
989 | case scInit: | |
990 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
991 | asym->value -= asym->section->vma; | |
992 | break; | |
993 | case scBasedVar: | |
994 | case scXData: | |
995 | case scPData: | |
996 | asym->flags = BSF_DEBUGGING; | |
997 | break; | |
998 | case scFini: | |
999 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
1000 | asym->value -= asym->section->vma; | |
1001 | break; | |
1002 | default: | |
1003 | break; | |
1004 | } | |
1005 | ||
1006 | /* Look for special constructors symbols and make relocation entries | |
1007 | in a special construction section. These are produced by the | |
1008 | -fgnu-linker argument to g++. */ | |
1009 | if (ECOFF_IS_STAB (ecoff_sym)) | |
1010 | { | |
1011 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) | |
1012 | { | |
1013 | default: | |
1014 | break; | |
1015 | ||
1016 | case N_SETA: | |
1017 | case N_SETT: | |
1018 | case N_SETD: | |
1019 | case N_SETB: | |
1020 | { | |
1021 | const char *name; | |
1022 | asection *section; | |
1023 | arelent_chain *reloc_chain; | |
1024 | unsigned int bitsize; | |
dae31cf5 ILT |
1025 | |
1026 | /* Get a section with the same name as the symbol (usually | |
1027 | __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the | |
1028 | name ___CTOR_LIST (three underscores). We need | |
1029 | __CTOR_LIST (two underscores), since ECOFF doesn't use | |
1030 | a leading underscore. This should be handled by gcc, | |
1031 | but instead we do it here. Actually, this should all | |
1032 | be done differently anyhow. */ | |
1033 | name = bfd_asymbol_name (asym); | |
1034 | if (name[0] == '_' && name[1] == '_' && name[2] == '_') | |
1035 | { | |
1036 | ++name; | |
1037 | asym->name = name; | |
1038 | } | |
1039 | section = bfd_get_section_by_name (abfd, name); | |
1040 | if (section == (asection *) NULL) | |
1041 | { | |
1042 | char *copy; | |
1043 | ||
1044 | copy = (char *) bfd_alloc (abfd, strlen (name) + 1); | |
1045 | strcpy (copy, name); | |
1046 | section = bfd_make_section (abfd, copy); | |
1047 | } | |
1048 | ||
1049 | /* Build a reloc pointing to this constructor. */ | |
1050 | reloc_chain = | |
1051 | (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain)); | |
1052 | reloc_chain->relent.sym_ptr_ptr = | |
1053 | bfd_get_section (asym)->symbol_ptr_ptr; | |
1054 | reloc_chain->relent.address = section->_raw_size; | |
1055 | reloc_chain->relent.addend = asym->value; | |
8f46bac8 ILT |
1056 | reloc_chain->relent.howto = |
1057 | ecoff_backend (abfd)->constructor_reloc; | |
dae31cf5 ILT |
1058 | |
1059 | /* Set up the constructor section to hold the reloc. */ | |
1060 | section->flags = SEC_CONSTRUCTOR; | |
1061 | ++section->reloc_count; | |
1062 | ||
1063 | /* Constructor sections must be rounded to a boundary | |
1064 | based on the bitsize. These are not real sections-- | |
1065 | they are handled specially by the linker--so the ECOFF | |
1066 | 16 byte alignment restriction does not apply. */ | |
8f46bac8 | 1067 | bitsize = ecoff_backend (abfd)->constructor_bitsize; |
dae31cf5 ILT |
1068 | section->alignment_power = 1; |
1069 | while ((1 << section->alignment_power) < bitsize / 8) | |
1070 | ++section->alignment_power; | |
1071 | ||
1072 | reloc_chain->next = section->constructor_chain; | |
1073 | section->constructor_chain = reloc_chain; | |
1074 | section->_raw_size += bitsize / 8; | |
1075 | ||
1076 | /* Mark the symbol as a constructor. */ | |
1077 | asym->flags |= BSF_CONSTRUCTOR; | |
1078 | } | |
1079 | break; | |
1080 | } | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | /* Read an ECOFF symbol table. */ | |
1085 | ||
1086 | boolean | |
1087 | ecoff_slurp_symbol_table (abfd) | |
1088 | bfd *abfd; | |
1089 | { | |
1090 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
c9668c58 ILT |
1091 | const bfd_size_type external_ext_size |
1092 | = backend->debug_swap.external_ext_size; | |
1093 | const bfd_size_type external_sym_size | |
1094 | = backend->debug_swap.external_sym_size; | |
dae31cf5 | 1095 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) |
c9668c58 | 1096 | = backend->debug_swap.swap_ext_in; |
dae31cf5 | 1097 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) |
c9668c58 | 1098 | = backend->debug_swap.swap_sym_in; |
dae31cf5 ILT |
1099 | bfd_size_type internal_size; |
1100 | ecoff_symbol_type *internal; | |
1101 | ecoff_symbol_type *internal_ptr; | |
1102 | asymbol *indirect_ptr; | |
1103 | char *eraw_src; | |
1104 | char *eraw_end; | |
1105 | FDR *fdr_ptr; | |
1106 | FDR *fdr_end; | |
1107 | ||
1108 | /* If we've already read in the symbol table, do nothing. */ | |
1109 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
1110 | return true; | |
1111 | ||
1112 | /* Get the symbolic information. */ | |
1113 | if (ecoff_slurp_symbolic_info (abfd) == false) | |
1114 | return false; | |
1115 | if (bfd_get_symcount (abfd) == 0) | |
1116 | return true; | |
1117 | ||
1118 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
1119 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
1120 | if (internal == NULL) | |
1121 | { | |
1122 | bfd_error = no_memory; | |
1123 | return false; | |
1124 | } | |
1125 | ||
1126 | internal_ptr = internal; | |
1127 | indirect_ptr = NULL; | |
c9668c58 | 1128 | eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext; |
dae31cf5 | 1129 | eraw_end = (eraw_src |
c9668c58 | 1130 | + (ecoff_data (abfd)->debug_info.symbolic_header.iextMax |
dae31cf5 ILT |
1131 | * external_ext_size)); |
1132 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) | |
1133 | { | |
1134 | EXTR internal_esym; | |
1135 | ||
1136 | (*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym); | |
c9668c58 | 1137 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext |
dae31cf5 ILT |
1138 | + internal_esym.asym.iss); |
1139 | ecoff_set_symbol_info (abfd, &internal_esym.asym, | |
1140 | &internal_ptr->symbol, 1, &indirect_ptr); | |
48edba81 ILT |
1141 | /* The alpha uses a negative ifd field for section symbols. */ |
1142 | if (internal_esym.ifd >= 0) | |
c9668c58 ILT |
1143 | internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr |
1144 | + internal_esym.ifd); | |
48edba81 ILT |
1145 | else |
1146 | internal_ptr->fdr = NULL; | |
dae31cf5 ILT |
1147 | internal_ptr->local = false; |
1148 | internal_ptr->native = (PTR) eraw_src; | |
1149 | } | |
1150 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1151 | ||
1152 | /* The local symbols must be accessed via the fdr's, because the | |
1153 | string and aux indices are relative to the fdr information. */ | |
c9668c58 ILT |
1154 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; |
1155 | fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
dae31cf5 ILT |
1156 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
1157 | { | |
1158 | char *lraw_src; | |
1159 | char *lraw_end; | |
1160 | ||
c9668c58 | 1161 | lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym |
dae31cf5 ILT |
1162 | + fdr_ptr->isymBase * external_sym_size); |
1163 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; | |
1164 | for (; | |
1165 | lraw_src < lraw_end; | |
1166 | lraw_src += external_sym_size, internal_ptr++) | |
1167 | { | |
1168 | SYMR internal_sym; | |
1169 | ||
1170 | (*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym); | |
c9668c58 | 1171 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss |
dae31cf5 ILT |
1172 | + fdr_ptr->issBase |
1173 | + internal_sym.iss); | |
1174 | ecoff_set_symbol_info (abfd, &internal_sym, | |
1175 | &internal_ptr->symbol, 0, &indirect_ptr); | |
1176 | internal_ptr->fdr = fdr_ptr; | |
1177 | internal_ptr->local = true; | |
1178 | internal_ptr->native = (PTR) lraw_src; | |
1179 | } | |
1180 | } | |
1181 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1182 | ||
1183 | ecoff_data (abfd)->canonical_symbols = internal; | |
1184 | ||
1185 | return true; | |
1186 | } | |
1187 | ||
1188 | /* Return the amount of space needed for the canonical symbols. */ | |
1189 | ||
1190 | unsigned int | |
1191 | ecoff_get_symtab_upper_bound (abfd) | |
1192 | bfd *abfd; | |
1193 | { | |
1194 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1195 | || bfd_get_symcount (abfd) == 0) | |
1196 | return 0; | |
1197 | ||
1198 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
1199 | } | |
1200 | ||
b59f0276 | 1201 | /* Get the canonical symbols. */ |
dae31cf5 ILT |
1202 | |
1203 | unsigned int | |
1204 | ecoff_get_symtab (abfd, alocation) | |
1205 | bfd *abfd; | |
1206 | asymbol **alocation; | |
1207 | { | |
1208 | unsigned int counter = 0; | |
1209 | ecoff_symbol_type *symbase; | |
1210 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
1211 | ||
1212 | if (ecoff_slurp_symbol_table (abfd) == false | |
1213 | || bfd_get_symcount (abfd) == 0) | |
1214 | return 0; | |
1215 | ||
1216 | symbase = ecoff_data (abfd)->canonical_symbols; | |
1217 | while (counter < bfd_get_symcount (abfd)) | |
1218 | { | |
1219 | *(location++) = symbase++; | |
1220 | counter++; | |
1221 | } | |
1222 | *location++ = (ecoff_symbol_type *) NULL; | |
1223 | return bfd_get_symcount (abfd); | |
1224 | } | |
1225 | ||
1226 | /* Turn ECOFF type information into a printable string. | |
1227 | ecoff_emit_aggregate and ecoff_type_to_string are from | |
1228 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ | |
1229 | ||
1230 | /* Write aggregate information to a string. */ | |
1231 | ||
1232 | static void | |
1233 | ecoff_emit_aggregate (abfd, string, rndx, isym, which) | |
1234 | bfd *abfd; | |
1235 | char *string; | |
1236 | RNDXR *rndx; | |
1237 | long isym; | |
1238 | CONST char *which; | |
1239 | { | |
1240 | int ifd = rndx->rfd; | |
1241 | int indx = rndx->index; | |
1242 | int sym_base, ss_base; | |
1243 | CONST char *name; | |
1244 | ||
1245 | if (ifd == 0xfff) | |
1246 | ifd = isym; | |
1247 | ||
c9668c58 ILT |
1248 | sym_base = ecoff_data (abfd)->debug_info.fdr[ifd].isymBase; |
1249 | ss_base = ecoff_data (abfd)->debug_info.fdr[ifd].issBase; | |
dae31cf5 ILT |
1250 | |
1251 | if (indx == indexNil) | |
1252 | name = "/* no name */"; | |
1253 | else | |
1254 | { | |
c9668c58 ILT |
1255 | const struct ecoff_debug_swap * const debug_swap |
1256 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
1257 | SYMR sym; |
1258 | ||
1259 | indx += sym_base; | |
c9668c58 ILT |
1260 | (*debug_swap->swap_sym_in) |
1261 | (abfd, | |
1262 | ((char *) ecoff_data (abfd)->debug_info.external_sym | |
1263 | + indx * debug_swap->external_sym_size), | |
1264 | &sym); | |
1265 | name = ecoff_data (abfd)->debug_info.ss + ss_base + sym.iss; | |
dae31cf5 ILT |
1266 | } |
1267 | ||
1268 | sprintf (string, | |
c9668c58 | 1269 | "%s %s { ifd = %d, index = %ld }", |
dae31cf5 | 1270 | which, name, ifd, |
c9668c58 ILT |
1271 | ((long) indx |
1272 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax)); | |
dae31cf5 ILT |
1273 | } |
1274 | ||
1275 | /* Convert the type information to string format. */ | |
1276 | ||
1277 | static char * | |
1278 | ecoff_type_to_string (abfd, aux_ptr, indx, bigendian) | |
1279 | bfd *abfd; | |
1280 | union aux_ext *aux_ptr; | |
1281 | unsigned int indx; | |
1282 | int bigendian; | |
1283 | { | |
1284 | AUXU u; | |
1285 | struct qual { | |
1286 | unsigned int type; | |
1287 | int low_bound; | |
1288 | int high_bound; | |
1289 | int stride; | |
1290 | } qualifiers[7]; | |
1291 | ||
1292 | unsigned int basic_type; | |
1293 | int i; | |
1294 | static char buffer1[1024]; | |
1295 | static char buffer2[1024]; | |
1296 | char *p1 = buffer1; | |
1297 | char *p2 = buffer2; | |
1298 | RNDXR rndx; | |
1299 | ||
1300 | for (i = 0; i < 7; i++) | |
1301 | { | |
1302 | qualifiers[i].low_bound = 0; | |
1303 | qualifiers[i].high_bound = 0; | |
1304 | qualifiers[i].stride = 0; | |
1305 | } | |
1306 | ||
1307 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
1308 | return "-1 (no type)"; | |
1309 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
1310 | ||
1311 | basic_type = u.ti.bt; | |
1312 | qualifiers[0].type = u.ti.tq0; | |
1313 | qualifiers[1].type = u.ti.tq1; | |
1314 | qualifiers[2].type = u.ti.tq2; | |
1315 | qualifiers[3].type = u.ti.tq3; | |
1316 | qualifiers[4].type = u.ti.tq4; | |
1317 | qualifiers[5].type = u.ti.tq5; | |
1318 | qualifiers[6].type = tqNil; | |
1319 | ||
1320 | /* | |
1321 | * Go get the basic type. | |
1322 | */ | |
1323 | switch (basic_type) | |
1324 | { | |
1325 | case btNil: /* undefined */ | |
1326 | strcpy (p1, "nil"); | |
1327 | break; | |
1328 | ||
1329 | case btAdr: /* address - integer same size as pointer */ | |
1330 | strcpy (p1, "address"); | |
1331 | break; | |
1332 | ||
1333 | case btChar: /* character */ | |
1334 | strcpy (p1, "char"); | |
1335 | break; | |
1336 | ||
1337 | case btUChar: /* unsigned character */ | |
1338 | strcpy (p1, "unsigned char"); | |
1339 | break; | |
1340 | ||
1341 | case btShort: /* short */ | |
1342 | strcpy (p1, "short"); | |
1343 | break; | |
1344 | ||
1345 | case btUShort: /* unsigned short */ | |
1346 | strcpy (p1, "unsigned short"); | |
1347 | break; | |
1348 | ||
1349 | case btInt: /* int */ | |
1350 | strcpy (p1, "int"); | |
1351 | break; | |
1352 | ||
1353 | case btUInt: /* unsigned int */ | |
1354 | strcpy (p1, "unsigned int"); | |
1355 | break; | |
1356 | ||
1357 | case btLong: /* long */ | |
1358 | strcpy (p1, "long"); | |
1359 | break; | |
1360 | ||
1361 | case btULong: /* unsigned long */ | |
1362 | strcpy (p1, "unsigned long"); | |
1363 | break; | |
1364 | ||
1365 | case btFloat: /* float (real) */ | |
1366 | strcpy (p1, "float"); | |
1367 | break; | |
1368 | ||
1369 | case btDouble: /* Double (real) */ | |
1370 | strcpy (p1, "double"); | |
1371 | break; | |
1372 | ||
1373 | /* Structures add 1-2 aux words: | |
1374 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
1375 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1376 | ||
1377 | case btStruct: /* Structure (Record) */ | |
1378 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1379 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
4c3721d5 | 1380 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1381 | "struct"); |
1382 | indx++; /* skip aux words */ | |
1383 | break; | |
1384 | ||
1385 | /* Unions add 1-2 aux words: | |
1386 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1387 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1388 | ||
1389 | case btUnion: /* Union */ | |
1390 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1391 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
4c3721d5 | 1392 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1393 | "union"); |
1394 | indx++; /* skip aux words */ | |
1395 | break; | |
1396 | ||
1397 | /* Enumerations add 1-2 aux words: | |
1398 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1399 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1400 | ||
1401 | case btEnum: /* Enumeration */ | |
1402 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1403 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
4c3721d5 | 1404 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1405 | "enum"); |
1406 | indx++; /* skip aux words */ | |
1407 | break; | |
1408 | ||
1409 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1410 | strcpy (p1, "typedef"); | |
1411 | break; | |
1412 | ||
1413 | case btRange: /* subrange of int */ | |
1414 | strcpy (p1, "subrange"); | |
1415 | break; | |
1416 | ||
1417 | case btSet: /* pascal sets */ | |
1418 | strcpy (p1, "set"); | |
1419 | break; | |
1420 | ||
1421 | case btComplex: /* fortran complex */ | |
1422 | strcpy (p1, "complex"); | |
1423 | break; | |
1424 | ||
1425 | case btDComplex: /* fortran double complex */ | |
1426 | strcpy (p1, "double complex"); | |
1427 | break; | |
1428 | ||
1429 | case btIndirect: /* forward or unnamed typedef */ | |
1430 | strcpy (p1, "forward/unamed typedef"); | |
1431 | break; | |
1432 | ||
1433 | case btFixedDec: /* Fixed Decimal */ | |
1434 | strcpy (p1, "fixed decimal"); | |
1435 | break; | |
1436 | ||
1437 | case btFloatDec: /* Float Decimal */ | |
1438 | strcpy (p1, "float decimal"); | |
1439 | break; | |
1440 | ||
1441 | case btString: /* Varying Length Character String */ | |
1442 | strcpy (p1, "string"); | |
1443 | break; | |
1444 | ||
1445 | case btBit: /* Aligned Bit String */ | |
1446 | strcpy (p1, "bit"); | |
1447 | break; | |
1448 | ||
1449 | case btPicture: /* Picture */ | |
1450 | strcpy (p1, "picture"); | |
1451 | break; | |
1452 | ||
1453 | case btVoid: /* Void */ | |
1454 | strcpy (p1, "void"); | |
1455 | break; | |
1456 | ||
1457 | default: | |
1458 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
1459 | break; | |
1460 | } | |
1461 | ||
1462 | p1 += strlen (buffer1); | |
1463 | ||
1464 | /* | |
1465 | * If this is a bitfield, get the bitsize. | |
1466 | */ | |
1467 | if (u.ti.fBitfield) | |
1468 | { | |
1469 | int bitsize; | |
1470 | ||
1471 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1472 | sprintf (p1, " : %d", bitsize); | |
1473 | p1 += strlen (buffer1); | |
1474 | } | |
1475 | ||
1476 | ||
1477 | /* | |
1478 | * Deal with any qualifiers. | |
1479 | */ | |
1480 | if (qualifiers[0].type != tqNil) | |
1481 | { | |
1482 | /* | |
1483 | * Snarf up any array bounds in the correct order. Arrays | |
1484 | * store 5 successive words in the aux. table: | |
1485 | * word 0 RNDXR to type of the bounds (ie, int) | |
1486 | * word 1 Current file descriptor index | |
1487 | * word 2 low bound | |
1488 | * word 3 high bound (or -1 if []) | |
1489 | * word 4 stride size in bits | |
1490 | */ | |
1491 | for (i = 0; i < 7; i++) | |
1492 | { | |
1493 | if (qualifiers[i].type == tqArray) | |
1494 | { | |
1495 | qualifiers[i].low_bound = | |
1496 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1497 | qualifiers[i].high_bound = | |
1498 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1499 | qualifiers[i].stride = | |
1500 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1501 | indx += 5; | |
1502 | } | |
1503 | } | |
1504 | ||
1505 | /* | |
1506 | * Now print out the qualifiers. | |
1507 | */ | |
1508 | for (i = 0; i < 6; i++) | |
1509 | { | |
1510 | switch (qualifiers[i].type) | |
1511 | { | |
1512 | case tqNil: | |
1513 | case tqMax: | |
1514 | break; | |
1515 | ||
1516 | case tqPtr: | |
1517 | strcpy (p2, "ptr to "); | |
1518 | p2 += sizeof ("ptr to ")-1; | |
1519 | break; | |
1520 | ||
1521 | case tqVol: | |
1522 | strcpy (p2, "volatile "); | |
1523 | p2 += sizeof ("volatile ")-1; | |
1524 | break; | |
1525 | ||
1526 | case tqFar: | |
1527 | strcpy (p2, "far "); | |
1528 | p2 += sizeof ("far ")-1; | |
1529 | break; | |
1530 | ||
1531 | case tqProc: | |
1532 | strcpy (p2, "func. ret. "); | |
1533 | p2 += sizeof ("func. ret. "); | |
1534 | break; | |
1535 | ||
1536 | case tqArray: | |
1537 | { | |
1538 | int first_array = i; | |
1539 | int j; | |
1540 | ||
1541 | /* Print array bounds reversed (ie, in the order the C | |
1542 | programmer writes them). C is such a fun language.... */ | |
1543 | ||
1544 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1545 | i++; | |
1546 | ||
1547 | for (j = i; j >= first_array; j--) | |
1548 | { | |
1549 | strcpy (p2, "array ["); | |
1550 | p2 += sizeof ("array [")-1; | |
1551 | if (qualifiers[j].low_bound != 0) | |
1552 | sprintf (p2, | |
1553 | "%ld:%ld {%ld bits}", | |
1554 | (long) qualifiers[j].low_bound, | |
1555 | (long) qualifiers[j].high_bound, | |
1556 | (long) qualifiers[j].stride); | |
1557 | ||
1558 | else if (qualifiers[j].high_bound != -1) | |
1559 | sprintf (p2, | |
1560 | "%ld {%ld bits}", | |
1561 | (long) (qualifiers[j].high_bound + 1), | |
1562 | (long) (qualifiers[j].stride)); | |
1563 | ||
1564 | else | |
1565 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1566 | ||
1567 | p2 += strlen (p2); | |
1568 | strcpy (p2, "] of "); | |
1569 | p2 += sizeof ("] of ")-1; | |
1570 | } | |
1571 | } | |
1572 | break; | |
1573 | } | |
1574 | } | |
1575 | } | |
1576 | ||
1577 | strcpy (p2, buffer1); | |
1578 | return buffer2; | |
1579 | } | |
1580 | ||
1581 | /* Return information about ECOFF symbol SYMBOL in RET. */ | |
1582 | ||
728472f1 | 1583 | /*ARGSUSED*/ |
dae31cf5 ILT |
1584 | void |
1585 | ecoff_get_symbol_info (abfd, symbol, ret) | |
1586 | bfd *abfd; /* Ignored. */ | |
1587 | asymbol *symbol; | |
1588 | symbol_info *ret; | |
1589 | { | |
1590 | bfd_symbol_info (symbol, ret); | |
1591 | } | |
1592 | ||
1593 | /* Print information about an ECOFF symbol. */ | |
1594 | ||
1595 | void | |
1596 | ecoff_print_symbol (abfd, filep, symbol, how) | |
1597 | bfd *abfd; | |
1598 | PTR filep; | |
1599 | asymbol *symbol; | |
1600 | bfd_print_symbol_type how; | |
1601 | { | |
c9668c58 ILT |
1602 | const struct ecoff_debug_swap * const debug_swap |
1603 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
1604 | FILE *file = (FILE *)filep; |
1605 | ||
1606 | switch (how) | |
1607 | { | |
1608 | case bfd_print_symbol_name: | |
1609 | fprintf (file, "%s", symbol->name); | |
1610 | break; | |
1611 | case bfd_print_symbol_more: | |
1612 | if (ecoffsymbol (symbol)->local) | |
1613 | { | |
1614 | SYMR ecoff_sym; | |
1615 | ||
c9668c58 ILT |
1616 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
1617 | &ecoff_sym); | |
dae31cf5 ILT |
1618 | fprintf (file, "ecoff local "); |
1619 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); | |
1620 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, | |
1621 | (unsigned) ecoff_sym.sc); | |
1622 | } | |
1623 | else | |
1624 | { | |
1625 | EXTR ecoff_ext; | |
1626 | ||
c9668c58 ILT |
1627 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
1628 | &ecoff_ext); | |
dae31cf5 ILT |
1629 | fprintf (file, "ecoff extern "); |
1630 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1631 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, | |
1632 | (unsigned) ecoff_ext.asym.sc); | |
1633 | } | |
1634 | break; | |
1635 | case bfd_print_symbol_all: | |
1636 | /* Print out the symbols in a reasonable way */ | |
1637 | { | |
1638 | char type; | |
1639 | int pos; | |
1640 | EXTR ecoff_ext; | |
1641 | char jmptbl; | |
1642 | char cobol_main; | |
1643 | char weakext; | |
1644 | ||
1645 | if (ecoffsymbol (symbol)->local) | |
1646 | { | |
c9668c58 ILT |
1647 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
1648 | &ecoff_ext.asym); | |
dae31cf5 ILT |
1649 | type = 'l'; |
1650 | pos = ((((char *) ecoffsymbol (symbol)->native | |
c9668c58 ILT |
1651 | - (char *) ecoff_data (abfd)->debug_info.external_sym) |
1652 | / debug_swap->external_sym_size) | |
1653 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax); | |
dae31cf5 ILT |
1654 | jmptbl = ' '; |
1655 | cobol_main = ' '; | |
1656 | weakext = ' '; | |
1657 | } | |
1658 | else | |
1659 | { | |
c9668c58 ILT |
1660 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
1661 | &ecoff_ext); | |
dae31cf5 ILT |
1662 | type = 'e'; |
1663 | pos = (((char *) ecoffsymbol (symbol)->native | |
c9668c58 ILT |
1664 | - (char *) ecoff_data (abfd)->debug_info.external_ext) |
1665 | / debug_swap->external_ext_size); | |
dae31cf5 ILT |
1666 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; |
1667 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1668 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1669 | } | |
1670 | ||
1671 | fprintf (file, "[%3d] %c ", | |
1672 | pos, type); | |
1673 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1674 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", | |
1675 | (unsigned) ecoff_ext.asym.st, | |
1676 | (unsigned) ecoff_ext.asym.sc, | |
1677 | (unsigned) ecoff_ext.asym.index, | |
1678 | jmptbl, cobol_main, weakext, | |
1679 | symbol->name); | |
1680 | ||
1681 | if (ecoffsymbol (symbol)->fdr != NULL | |
1682 | && ecoff_ext.asym.index != indexNil) | |
1683 | { | |
1684 | unsigned int indx; | |
1685 | int bigendian; | |
1686 | bfd_size_type sym_base; | |
1687 | union aux_ext *aux_base; | |
1688 | ||
1689 | indx = ecoff_ext.asym.index; | |
1690 | ||
1691 | /* sym_base is used to map the fdr relative indices which | |
1692 | appear in the file to the position number which we are | |
1693 | using. */ | |
1694 | sym_base = ecoffsymbol (symbol)->fdr->isymBase; | |
1695 | if (ecoffsymbol (symbol)->local) | |
c9668c58 ILT |
1696 | sym_base += |
1697 | ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
dae31cf5 ILT |
1698 | |
1699 | /* aux_base is the start of the aux entries for this file; | |
1700 | asym.index is an offset from this. */ | |
c9668c58 | 1701 | aux_base = (ecoff_data (abfd)->debug_info.external_aux |
dae31cf5 ILT |
1702 | + ecoffsymbol (symbol)->fdr->iauxBase); |
1703 | ||
1704 | /* The aux entries are stored in host byte order; the | |
1705 | order is indicated by a bit in the fdr. */ | |
1706 | bigendian = ecoffsymbol (symbol)->fdr->fBigendian; | |
1707 | ||
1708 | /* This switch is basically from gcc/mips-tdump.c */ | |
1709 | switch (ecoff_ext.asym.st) | |
1710 | { | |
1711 | case stNil: | |
1712 | case stLabel: | |
1713 | break; | |
1714 | ||
1715 | case stFile: | |
1716 | case stBlock: | |
1717 | fprintf (file, "\n End+1 symbol: %ld", | |
1718 | (long) (indx + sym_base)); | |
1719 | break; | |
1720 | ||
1721 | case stEnd: | |
1722 | if (ecoff_ext.asym.sc == scText | |
1723 | || ecoff_ext.asym.sc == scInfo) | |
1724 | fprintf (file, "\n First symbol: %ld", | |
1725 | (long) (indx + sym_base)); | |
1726 | else | |
1727 | fprintf (file, "\n First symbol: %ld", | |
1728 | (long) (AUX_GET_ISYM (bigendian, | |
1729 | &aux_base[ecoff_ext.asym.index]) | |
1730 | + sym_base)); | |
1731 | break; | |
1732 | ||
1733 | case stProc: | |
1734 | case stStaticProc: | |
1735 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1736 | ; | |
1737 | else if (ecoffsymbol (symbol)->local) | |
1738 | fprintf (file, "\n End+1 symbol: %-7ld Type: %s", | |
1739 | (long) (AUX_GET_ISYM (bigendian, | |
1740 | &aux_base[ecoff_ext.asym.index]) | |
1741 | + sym_base), | |
1742 | ecoff_type_to_string (abfd, aux_base, indx + 1, | |
1743 | bigendian)); | |
1744 | else | |
c9668c58 ILT |
1745 | fprintf (file, "\n Local symbol: %ld", |
1746 | ((long) indx | |
1747 | + (long) sym_base | |
1748 | + (ecoff_data (abfd) | |
1749 | ->debug_info.symbolic_header.iextMax))); | |
dae31cf5 ILT |
1750 | break; |
1751 | ||
1752 | default: | |
1753 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1754 | fprintf (file, "\n Type: %s", | |
1755 | ecoff_type_to_string (abfd, aux_base, indx, | |
1756 | bigendian)); | |
1757 | break; | |
1758 | } | |
1759 | } | |
1760 | } | |
1761 | break; | |
1762 | } | |
1763 | } | |
1764 | \f | |
dae31cf5 ILT |
1765 | /* Read in the relocs for a section. */ |
1766 | ||
1767 | static boolean | |
1768 | ecoff_slurp_reloc_table (abfd, section, symbols) | |
1769 | bfd *abfd; | |
1770 | asection *section; | |
1771 | asymbol **symbols; | |
1772 | { | |
1773 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1774 | arelent *internal_relocs; | |
1775 | bfd_size_type external_reloc_size; | |
1776 | bfd_size_type external_relocs_size; | |
1777 | char *external_relocs; | |
1778 | arelent *rptr; | |
1779 | unsigned int i; | |
1780 | ||
1781 | if (section->relocation != (arelent *) NULL | |
1782 | || section->reloc_count == 0 | |
1783 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1784 | return true; | |
1785 | ||
1786 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1787 | return false; | |
1788 | ||
1789 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1790 | (sizeof (arelent) | |
1791 | * section->reloc_count)); | |
1792 | external_reloc_size = backend->external_reloc_size; | |
1793 | external_relocs_size = external_reloc_size * section->reloc_count; | |
1794 | external_relocs = (char *) bfd_alloc (abfd, external_relocs_size); | |
1795 | if (internal_relocs == (arelent *) NULL | |
1796 | || external_relocs == (char *) NULL) | |
1797 | { | |
1798 | bfd_error = no_memory; | |
1799 | return false; | |
1800 | } | |
1801 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1802 | return false; | |
1803 | if (bfd_read (external_relocs, 1, external_relocs_size, abfd) | |
1804 | != external_relocs_size) | |
1805 | { | |
1806 | bfd_error = system_call_error; | |
1807 | return false; | |
1808 | } | |
1809 | ||
1810 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1811 | { | |
1812 | struct internal_reloc intern; | |
1813 | ||
1814 | (*backend->swap_reloc_in) (abfd, | |
1815 | external_relocs + i * external_reloc_size, | |
1816 | &intern); | |
1817 | ||
dae31cf5 ILT |
1818 | if (intern.r_extern) |
1819 | { | |
1820 | /* r_symndx is an index into the external symbols. */ | |
1821 | BFD_ASSERT (intern.r_symndx >= 0 | |
1822 | && (intern.r_symndx | |
c9668c58 ILT |
1823 | < (ecoff_data (abfd) |
1824 | ->debug_info.symbolic_header.iextMax))); | |
dae31cf5 ILT |
1825 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; |
1826 | rptr->addend = 0; | |
1827 | } | |
e544ed4f ILT |
1828 | else if (intern.r_symndx == RELOC_SECTION_NONE |
1829 | || intern.r_symndx == RELOC_SECTION_ABS) | |
1830 | { | |
1831 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1832 | rptr->addend = 0; | |
1833 | } | |
dae31cf5 ILT |
1834 | else |
1835 | { | |
1836 | CONST char *sec_name; | |
1837 | asection *sec; | |
1838 | ||
1839 | /* r_symndx is a section key. */ | |
1840 | switch (intern.r_symndx) | |
1841 | { | |
1842 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1843 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1844 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1845 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1846 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1847 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1848 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1849 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1850 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
8f46bac8 ILT |
1851 | case RELOC_SECTION_XDATA: sec_name = ".xdata"; break; |
1852 | case RELOC_SECTION_PDATA: sec_name = ".pdata"; break; | |
c9668c58 | 1853 | case RELOC_SECTION_FINI: sec_name = ".fini"; break; |
8f46bac8 | 1854 | case RELOC_SECTION_LITA: sec_name = ".lita"; break; |
dae31cf5 ILT |
1855 | default: abort (); |
1856 | } | |
1857 | ||
1858 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1859 | if (sec == (asection *) NULL) | |
e544ed4f | 1860 | abort (); |
dae31cf5 ILT |
1861 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; |
1862 | ||
1863 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
dae31cf5 ILT |
1864 | } |
1865 | ||
1866 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
dae31cf5 | 1867 | |
8f46bac8 ILT |
1868 | /* Let the backend select the howto field and do any other |
1869 | required processing. */ | |
c9668c58 | 1870 | (*backend->adjust_reloc_in) (abfd, &intern, rptr); |
dae31cf5 ILT |
1871 | } |
1872 | ||
1873 | bfd_release (abfd, external_relocs); | |
1874 | ||
1875 | section->relocation = internal_relocs; | |
1876 | ||
1877 | return true; | |
1878 | } | |
1879 | ||
1880 | /* Get a canonical list of relocs. */ | |
1881 | ||
1882 | unsigned int | |
1883 | ecoff_canonicalize_reloc (abfd, section, relptr, symbols) | |
1884 | bfd *abfd; | |
1885 | asection *section; | |
1886 | arelent **relptr; | |
1887 | asymbol **symbols; | |
1888 | { | |
1889 | unsigned int count; | |
1890 | ||
1891 | if (section->flags & SEC_CONSTRUCTOR) | |
1892 | { | |
1893 | arelent_chain *chain; | |
1894 | ||
1895 | /* This section has relocs made up by us, not the file, so take | |
1896 | them out of their chain and place them into the data area | |
1897 | provided. */ | |
1898 | for (count = 0, chain = section->constructor_chain; | |
1899 | count < section->reloc_count; | |
1900 | count++, chain = chain->next) | |
1901 | *relptr++ = &chain->relent; | |
1902 | } | |
1903 | else | |
1904 | { | |
1905 | arelent *tblptr; | |
1906 | ||
1907 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
1908 | return 0; | |
1909 | ||
1910 | tblptr = section->relocation; | |
1911 | if (tblptr == (arelent *) NULL) | |
1912 | return 0; | |
1913 | ||
1914 | for (count = 0; count < section->reloc_count; count++) | |
1915 | *relptr++ = tblptr++; | |
1916 | } | |
1917 | ||
1918 | *relptr = (arelent *) NULL; | |
1919 | ||
1920 | return section->reloc_count; | |
1921 | } | |
dae31cf5 ILT |
1922 | \f |
1923 | /* Provided a BFD, a section and an offset into the section, calculate | |
1924 | and return the name of the source file and the line nearest to the | |
1925 | wanted location. */ | |
1926 | ||
728472f1 | 1927 | /*ARGSUSED*/ |
dae31cf5 ILT |
1928 | boolean |
1929 | ecoff_find_nearest_line (abfd, | |
1930 | section, | |
1931 | ignore_symbols, | |
1932 | offset, | |
1933 | filename_ptr, | |
1934 | functionname_ptr, | |
1935 | retline_ptr) | |
1936 | bfd *abfd; | |
1937 | asection *section; | |
1938 | asymbol **ignore_symbols; | |
1939 | bfd_vma offset; | |
1940 | CONST char **filename_ptr; | |
1941 | CONST char **functionname_ptr; | |
1942 | unsigned int *retline_ptr; | |
1943 | { | |
c9668c58 ILT |
1944 | const struct ecoff_debug_swap * const debug_swap |
1945 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
1946 | FDR *fdr_ptr; |
1947 | FDR *fdr_start; | |
1948 | FDR *fdr_end; | |
1949 | FDR *fdr_hold; | |
1950 | bfd_size_type external_pdr_size; | |
1951 | char *pdr_ptr; | |
1952 | char *pdr_end; | |
1953 | PDR pdr; | |
1954 | unsigned char *line_ptr; | |
1955 | unsigned char *line_end; | |
1956 | int lineno; | |
1957 | ||
1958 | /* If we're not in the .text section, we don't have any line | |
1959 | numbers. */ | |
1960 | if (strcmp (section->name, _TEXT) != 0 | |
1961 | || offset < ecoff_data (abfd)->text_start | |
1962 | || offset >= ecoff_data (abfd)->text_end) | |
1963 | return false; | |
1964 | ||
1965 | /* Make sure we have the FDR's. */ | |
1966 | if (ecoff_slurp_symbolic_info (abfd) == false | |
1967 | || bfd_get_symcount (abfd) == 0) | |
1968 | return false; | |
1969 | ||
1970 | /* Each file descriptor (FDR) has a memory address. Here we track | |
1971 | down which FDR we want. The FDR's are stored in increasing | |
1972 | memory order. If speed is ever important, this can become a | |
1973 | binary search. We must ignore FDR's with no PDR entries; they | |
1974 | will have the adr of the FDR before or after them. */ | |
c9668c58 ILT |
1975 | fdr_start = ecoff_data (abfd)->debug_info.fdr; |
1976 | fdr_end = fdr_start + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
dae31cf5 ILT |
1977 | fdr_hold = (FDR *) NULL; |
1978 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
1979 | { | |
1980 | if (fdr_ptr->cpd == 0) | |
1981 | continue; | |
1982 | if (offset < fdr_ptr->adr) | |
1983 | break; | |
1984 | fdr_hold = fdr_ptr; | |
1985 | } | |
1986 | if (fdr_hold == (FDR *) NULL) | |
1987 | return false; | |
1988 | fdr_ptr = fdr_hold; | |
1989 | ||
1990 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
1991 | have an address, which is relative to the FDR address, and are | |
1992 | also stored in increasing memory order. */ | |
1993 | offset -= fdr_ptr->adr; | |
c9668c58 ILT |
1994 | external_pdr_size = debug_swap->external_pdr_size; |
1995 | pdr_ptr = ((char *) ecoff_data (abfd)->debug_info.external_pdr | |
dae31cf5 ILT |
1996 | + fdr_ptr->ipdFirst * external_pdr_size); |
1997 | pdr_end = pdr_ptr + fdr_ptr->cpd * external_pdr_size; | |
c9668c58 | 1998 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 ILT |
1999 | |
2000 | /* The address of the first PDR is an offset which applies to the | |
2001 | addresses of all the PDR's. */ | |
2002 | offset += pdr.adr; | |
2003 | ||
2004 | for (pdr_ptr += external_pdr_size; | |
2005 | pdr_ptr < pdr_end; | |
2006 | pdr_ptr += external_pdr_size) | |
2007 | { | |
c9668c58 | 2008 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 ILT |
2009 | if (offset < pdr.adr) |
2010 | break; | |
2011 | } | |
2012 | ||
2013 | /* Now we can look for the actual line number. The line numbers are | |
2014 | stored in a very funky format, which I won't try to describe. | |
2015 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
2016 | we want; we need this to compute line_end. */ | |
c9668c58 | 2017 | line_end = ecoff_data (abfd)->debug_info.line; |
dae31cf5 ILT |
2018 | if (pdr_ptr == pdr_end) |
2019 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
2020 | else | |
2021 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
2022 | ||
2023 | /* Now change pdr and pdr_ptr to the one we want. */ | |
2024 | pdr_ptr -= external_pdr_size; | |
c9668c58 | 2025 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 ILT |
2026 | |
2027 | offset -= pdr.adr; | |
2028 | lineno = pdr.lnLow; | |
c9668c58 | 2029 | line_ptr = (ecoff_data (abfd)->debug_info.line |
dae31cf5 ILT |
2030 | + fdr_ptr->cbLineOffset |
2031 | + pdr.cbLineOffset); | |
2032 | while (line_ptr < line_end) | |
2033 | { | |
2034 | int delta; | |
2035 | int count; | |
2036 | ||
2037 | delta = *line_ptr >> 4; | |
2038 | if (delta >= 0x8) | |
2039 | delta -= 0x10; | |
2040 | count = (*line_ptr & 0xf) + 1; | |
2041 | ++line_ptr; | |
2042 | if (delta == -8) | |
2043 | { | |
2044 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
2045 | if (delta >= 0x8000) | |
2046 | delta -= 0x10000; | |
2047 | line_ptr += 2; | |
2048 | } | |
2049 | lineno += delta; | |
2050 | if (offset < count * 4) | |
2051 | break; | |
2052 | offset -= count * 4; | |
2053 | } | |
2054 | ||
2055 | /* If fdr_ptr->rss is -1, then this file does not have full symbols, | |
2056 | at least according to gdb/mipsread.c. */ | |
2057 | if (fdr_ptr->rss == -1) | |
2058 | { | |
2059 | *filename_ptr = NULL; | |
2060 | if (pdr.isym == -1) | |
2061 | *functionname_ptr = NULL; | |
2062 | else | |
2063 | { | |
2064 | EXTR proc_ext; | |
2065 | ||
c9668c58 ILT |
2066 | (*debug_swap->swap_ext_in) |
2067 | (abfd, | |
2068 | ((char *) ecoff_data (abfd)->debug_info.external_ext | |
2069 | + pdr.isym * debug_swap->external_ext_size), | |
2070 | &proc_ext); | |
2071 | *functionname_ptr = (ecoff_data (abfd)->debug_info.ssext | |
2072 | + proc_ext.asym.iss); | |
dae31cf5 ILT |
2073 | } |
2074 | } | |
2075 | else | |
2076 | { | |
2077 | SYMR proc_sym; | |
2078 | ||
c9668c58 ILT |
2079 | *filename_ptr = (ecoff_data (abfd)->debug_info.ss |
2080 | + fdr_ptr->issBase | |
2081 | + fdr_ptr->rss); | |
2082 | (*debug_swap->swap_sym_in) | |
2083 | (abfd, | |
2084 | ((char *) ecoff_data (abfd)->debug_info.external_sym | |
2085 | + (fdr_ptr->isymBase + pdr.isym) * debug_swap->external_sym_size), | |
2086 | &proc_sym); | |
2087 | *functionname_ptr = (ecoff_data (abfd)->debug_info.ss | |
dae31cf5 ILT |
2088 | + fdr_ptr->issBase |
2089 | + proc_sym.iss); | |
2090 | } | |
2091 | if (lineno == ilineNil) | |
2092 | lineno = 0; | |
2093 | *retline_ptr = lineno; | |
2094 | return true; | |
2095 | } | |
2096 | \f | |
dae31cf5 ILT |
2097 | /* Set the architecture. The supported architecture is stored in the |
2098 | backend pointer. We always set the architecture anyhow, since many | |
2099 | callers ignore the return value. */ | |
2100 | ||
2101 | boolean | |
2102 | ecoff_set_arch_mach (abfd, arch, machine) | |
2103 | bfd *abfd; | |
2104 | enum bfd_architecture arch; | |
2105 | unsigned long machine; | |
2106 | { | |
2107 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2108 | return arch == ecoff_backend (abfd)->arch; | |
2109 | } | |
2110 | ||
8d12f138 ILT |
2111 | /* Get the size of the section headers. We do not output the .reginfo |
2112 | section. */ | |
dae31cf5 | 2113 | |
728472f1 | 2114 | /*ARGSUSED*/ |
dae31cf5 ILT |
2115 | int |
2116 | ecoff_sizeof_headers (abfd, reloc) | |
2117 | bfd *abfd; | |
2118 | boolean reloc; | |
2119 | { | |
a7853216 ILT |
2120 | asection *current; |
2121 | int c; | |
2122 | ||
2123 | c = 0; | |
2124 | for (current = abfd->sections; | |
2125 | current != (asection *)NULL; | |
2126 | current = current->next) | |
8d12f138 | 2127 | if (strcmp (current->name, REGINFO) != 0) |
a7853216 ILT |
2128 | ++c; |
2129 | ||
dae31cf5 ILT |
2130 | return (bfd_coff_filhsz (abfd) |
2131 | + bfd_coff_aoutsz (abfd) | |
a7853216 ILT |
2132 | + c * bfd_coff_scnhsz (abfd)); |
2133 | } | |
2134 | ||
a7853216 ILT |
2135 | /* Get the contents of a section. This is where we handle reading the |
2136 | .reginfo section, which implicitly holds the contents of an | |
2137 | ecoff_reginfo structure. */ | |
2138 | ||
2139 | boolean | |
2140 | ecoff_get_section_contents (abfd, section, location, offset, count) | |
2141 | bfd *abfd; | |
2142 | asection *section; | |
2143 | PTR location; | |
2144 | file_ptr offset; | |
2145 | bfd_size_type count; | |
2146 | { | |
2147 | ecoff_data_type *tdata = ecoff_data (abfd); | |
2148 | struct ecoff_reginfo s; | |
2149 | int i; | |
2150 | ||
2151 | if (strcmp (section->name, REGINFO) != 0) | |
2152 | return bfd_generic_get_section_contents (abfd, section, location, | |
2153 | offset, count); | |
2154 | ||
2155 | s.gp_value = tdata->gp; | |
2156 | s.gprmask = tdata->gprmask; | |
2157 | for (i = 0; i < 4; i++) | |
2158 | s.cprmask[i] = tdata->cprmask[i]; | |
2159 | s.fprmask = tdata->fprmask; | |
2160 | ||
2161 | /* bfd_get_section_contents has already checked that the offset and | |
2162 | size is reasonable. We don't have to worry about swapping or any | |
2163 | such thing; the .reginfo section is defined such that the | |
2164 | contents are an ecoff_reginfo structure as seen on the host. */ | |
4c3721d5 | 2165 | memcpy (location, ((char *) &s) + offset, (size_t) count); |
a7853216 | 2166 | return true; |
dae31cf5 ILT |
2167 | } |
2168 | ||
2169 | /* Calculate the file position for each section, and set | |
2170 | reloc_filepos. */ | |
2171 | ||
2172 | static void | |
2173 | ecoff_compute_section_file_positions (abfd) | |
2174 | bfd *abfd; | |
2175 | { | |
2176 | asection *current; | |
2177 | file_ptr sofar; | |
2178 | file_ptr old_sofar; | |
2179 | boolean first_data; | |
2180 | ||
dae31cf5 ILT |
2181 | sofar = ecoff_sizeof_headers (abfd, false); |
2182 | ||
2183 | first_data = true; | |
2184 | for (current = abfd->sections; | |
2185 | current != (asection *) NULL; | |
2186 | current = current->next) | |
2187 | { | |
3f048f7f ILT |
2188 | unsigned int alignment_power; |
2189 | ||
dae31cf5 | 2190 | /* Only deal with sections which have contents */ |
e544ed4f | 2191 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) == 0 |
a7853216 | 2192 | || strcmp (current->name, REGINFO) == 0) |
dae31cf5 ILT |
2193 | continue; |
2194 | ||
3f048f7f ILT |
2195 | /* For the Alpha ECOFF .pdata section the lnnoptr field is |
2196 | supposed to indicate the number of .pdata entries that are | |
2197 | really in the section. Each entry is 8 bytes. We store this | |
2198 | away in line_filepos before increasing the section size. */ | |
2199 | if (strcmp (current->name, _PDATA) != 0) | |
2200 | alignment_power = current->alignment_power; | |
2201 | else | |
2202 | { | |
2203 | current->line_filepos = current->_raw_size / 8; | |
2204 | alignment_power = 4; | |
2205 | } | |
2206 | ||
dae31cf5 ILT |
2207 | /* On Ultrix, the data sections in an executable file must be |
2208 | aligned to a page boundary within the file. This does not | |
2209 | affect the section size, though. FIXME: Does this work for | |
c9668c58 ILT |
2210 | other platforms? It requires some modification for the |
2211 | Alpha, because .rdata on the Alpha goes with the text, not | |
2212 | the data. */ | |
dae31cf5 ILT |
2213 | if ((abfd->flags & EXEC_P) != 0 |
2214 | && (abfd->flags & D_PAGED) != 0 | |
2215 | && first_data != false | |
c9668c58 ILT |
2216 | && (current->flags & SEC_CODE) == 0 |
2217 | && (! ecoff_backend (abfd)->rdata_in_text | |
2218 | || strcmp (current->name, _RDATA) != 0) | |
2219 | && strcmp (current->name, _PDATA) != 0) | |
dae31cf5 ILT |
2220 | { |
2221 | const bfd_vma round = ecoff_backend (abfd)->round; | |
2222 | ||
2223 | sofar = (sofar + round - 1) &~ (round - 1); | |
2224 | first_data = false; | |
2225 | } | |
2226 | ||
2227 | /* Align the sections in the file to the same boundary on | |
2228 | which they are aligned in virtual memory. */ | |
2229 | old_sofar = sofar; | |
3f048f7f | 2230 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
dae31cf5 ILT |
2231 | |
2232 | current->filepos = sofar; | |
2233 | ||
2234 | sofar += current->_raw_size; | |
2235 | ||
2236 | /* make sure that this section is of the right size too */ | |
2237 | old_sofar = sofar; | |
3f048f7f | 2238 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
dae31cf5 ILT |
2239 | current->_raw_size += sofar - old_sofar; |
2240 | } | |
2241 | ||
2242 | ecoff_data (abfd)->reloc_filepos = sofar; | |
2243 | } | |
2244 | ||
966e0a16 | 2245 | /* Determine the location of the relocs for all the sections in the |
3f048f7f ILT |
2246 | output file, as well as the location of the symbolic debugging |
2247 | information. */ | |
966e0a16 ILT |
2248 | |
2249 | static bfd_size_type | |
2250 | ecoff_compute_reloc_file_positions (abfd) | |
2251 | bfd *abfd; | |
2252 | { | |
2253 | const bfd_size_type external_reloc_size = | |
2254 | ecoff_backend (abfd)->external_reloc_size; | |
2255 | file_ptr reloc_base; | |
2256 | bfd_size_type reloc_size; | |
2257 | asection *current; | |
3f048f7f | 2258 | file_ptr sym_base; |
966e0a16 ILT |
2259 | |
2260 | if (! abfd->output_has_begun) | |
3f048f7f ILT |
2261 | { |
2262 | ecoff_compute_section_file_positions (abfd); | |
2263 | abfd->output_has_begun = true; | |
2264 | } | |
966e0a16 ILT |
2265 | |
2266 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
2267 | ||
2268 | reloc_size = 0; | |
2269 | for (current = abfd->sections; | |
2270 | current != (asection *)NULL; | |
2271 | current = current->next) | |
2272 | { | |
2273 | if (strcmp (current->name, REGINFO) == 0) | |
2274 | continue; | |
2275 | if (current->reloc_count == 0) | |
2276 | current->rel_filepos = 0; | |
2277 | else | |
2278 | { | |
2279 | bfd_size_type relsize; | |
2280 | ||
2281 | current->rel_filepos = reloc_base; | |
2282 | relsize = current->reloc_count * external_reloc_size; | |
2283 | reloc_size += relsize; | |
2284 | reloc_base += relsize; | |
2285 | } | |
2286 | } | |
2287 | ||
3f048f7f ILT |
2288 | sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size; |
2289 | ||
2290 | /* At least on Ultrix, the symbol table of an executable file must | |
2291 | be aligned to a page boundary. FIXME: Is this true on other | |
2292 | platforms? */ | |
2293 | if ((abfd->flags & EXEC_P) != 0 | |
2294 | && (abfd->flags & D_PAGED) != 0) | |
2295 | sym_base = ((sym_base + ecoff_backend (abfd)->round - 1) | |
2296 | &~ (ecoff_backend (abfd)->round - 1)); | |
2297 | ||
2298 | ecoff_data (abfd)->sym_filepos = sym_base; | |
2299 | ||
966e0a16 ILT |
2300 | return reloc_size; |
2301 | } | |
2302 | ||
a7853216 ILT |
2303 | /* Set the contents of a section. This is where we handle setting the |
2304 | contents of the .reginfo section, which implicitly holds a | |
2305 | ecoff_reginfo structure. */ | |
dae31cf5 ILT |
2306 | |
2307 | boolean | |
2308 | ecoff_set_section_contents (abfd, section, location, offset, count) | |
2309 | bfd *abfd; | |
2310 | asection *section; | |
2311 | PTR location; | |
2312 | file_ptr offset; | |
2313 | bfd_size_type count; | |
2314 | { | |
966e0a16 ILT |
2315 | /* This must be done first, because bfd_set_section_contents is |
2316 | going to set output_has_begun to true. */ | |
dae31cf5 ILT |
2317 | if (abfd->output_has_begun == false) |
2318 | ecoff_compute_section_file_positions (abfd); | |
2319 | ||
966e0a16 ILT |
2320 | if (count == 0) |
2321 | return true; | |
2322 | ||
a7853216 ILT |
2323 | if (strcmp (section->name, REGINFO) == 0) |
2324 | { | |
2325 | ecoff_data_type *tdata = ecoff_data (abfd); | |
2326 | struct ecoff_reginfo s; | |
2327 | int i; | |
2328 | ||
2329 | /* If the caller is only changing part of the structure, we must | |
2330 | retrieve the current information before the memcpy. */ | |
2331 | if (offset != 0 || count != sizeof (struct ecoff_reginfo)) | |
2332 | { | |
2333 | s.gp_value = tdata->gp; | |
2334 | s.gprmask = tdata->gprmask; | |
2335 | for (i = 0; i < 4; i++) | |
2336 | s.cprmask[i] = tdata->cprmask[i]; | |
2337 | s.fprmask = tdata->fprmask; | |
2338 | } | |
2339 | ||
2340 | /* bfd_set_section_contents has already checked that the offset | |
2341 | and size is reasonable. We don't have to worry about | |
2342 | swapping or any such thing; the .reginfo section is defined | |
2343 | such that the contents are an ecoff_reginfo structure as seen | |
2344 | on the host. */ | |
4c3721d5 | 2345 | memcpy (((char *) &s) + offset, location, (size_t) count); |
a7853216 ILT |
2346 | |
2347 | tdata->gp = s.gp_value; | |
2348 | tdata->gprmask = s.gprmask; | |
2349 | for (i = 0; i < 4; i++) | |
2350 | tdata->cprmask[i] = s.cprmask[i]; | |
2351 | tdata->fprmask = s.fprmask; | |
2352 | ||
2353 | return true; | |
a7853216 ILT |
2354 | } |
2355 | ||
966e0a16 ILT |
2356 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 |
2357 | || bfd_write (location, 1, count, abfd) != count) | |
2358 | return false; | |
dae31cf5 ILT |
2359 | |
2360 | return true; | |
2361 | } | |
2362 | ||
966e0a16 ILT |
2363 | /* Get ECOFF EXTR information for an external symbol. This function |
2364 | is passed to bfd_ecoff_debug_externals. */ | |
dae31cf5 | 2365 | |
966e0a16 ILT |
2366 | static boolean |
2367 | ecoff_get_extr (sym, esym) | |
2368 | asymbol *sym; | |
2369 | EXTR *esym; | |
dae31cf5 | 2370 | { |
966e0a16 ILT |
2371 | ecoff_symbol_type *ecoff_sym_ptr; |
2372 | bfd *input_bfd; | |
2373 | ||
2374 | /* Don't include debugging, local or section symbols. */ | |
2375 | if ((sym->flags & BSF_DEBUGGING) != 0 | |
2376 | || (sym->flags & BSF_LOCAL) != 0 | |
2377 | || (sym->flags & BSF_SECTION_SYM) != 0) | |
2378 | return false; | |
2379 | ||
2380 | if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour | |
2381 | || ecoffsymbol (sym)->native == NULL) | |
2382 | { | |
2383 | esym->jmptbl = 0; | |
2384 | esym->cobol_main = 0; | |
2385 | esym->weakext = 0; | |
2386 | esym->reserved = 0; | |
2387 | esym->ifd = ifdNil; | |
2388 | /* FIXME: we can do better than this for st and sc. */ | |
2389 | esym->asym.st = stGlobal; | |
2390 | esym->asym.sc = scAbs; | |
2391 | esym->asym.reserved = 0; | |
2392 | esym->asym.index = indexNil; | |
2393 | return true; | |
2394 | } | |
2395 | ||
2396 | ecoff_sym_ptr = ecoffsymbol (sym); | |
2397 | ||
2398 | if (ecoff_sym_ptr->local) | |
2399 | abort (); | |
2400 | ||
2401 | input_bfd = bfd_asymbol_bfd (sym); | |
2402 | (*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in)) | |
2403 | (input_bfd, ecoff_sym_ptr->native, esym); | |
2404 | ||
2405 | /* If the symbol was defined by the linker, then esym will be | |
2406 | undefined but sym will not be. Get a better class for such a | |
2407 | symbol. */ | |
2408 | if ((esym->asym.sc == scUndefined | |
2409 | || esym->asym.sc == scSUndefined) | |
2410 | && bfd_get_section (sym) != &bfd_und_section) | |
2411 | esym->asym.sc = scAbs; | |
2412 | ||
2413 | /* Adjust the FDR index for the symbol by that used for the input | |
2414 | BFD. */ | |
3f048f7f ILT |
2415 | if (esym->ifd != -1) |
2416 | { | |
2417 | struct ecoff_debug_info *input_debug; | |
2418 | ||
2419 | input_debug = &ecoff_data (input_bfd)->debug_info; | |
2420 | BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax); | |
2421 | if (input_debug->ifdmap != (RFDT *) NULL) | |
2422 | esym->ifd = input_debug->ifdmap[esym->ifd]; | |
2423 | } | |
966e0a16 ILT |
2424 | |
2425 | return true; | |
2426 | } | |
2427 | ||
2428 | /* Set the external symbol index. This routine is passed to | |
2429 | bfd_ecoff_debug_externals. */ | |
2430 | ||
2431 | static void | |
2432 | ecoff_set_index (sym, indx) | |
2433 | asymbol *sym; | |
2434 | bfd_size_type indx; | |
2435 | { | |
2436 | ecoff_set_sym_index (sym, indx); | |
2437 | } | |
2438 | ||
2439 | /* Write out an ECOFF file. */ | |
2440 | ||
2441 | boolean | |
2442 | ecoff_write_object_contents (abfd) | |
2443 | bfd *abfd; | |
2444 | { | |
2445 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2446 | const bfd_vma round = backend->round; | |
2447 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); | |
2448 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); | |
2449 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); | |
2450 | const bfd_size_type external_hdr_size | |
2451 | = backend->debug_swap.external_hdr_size; | |
2452 | const bfd_size_type external_reloc_size = backend->external_reloc_size; | |
2453 | void (* const adjust_reloc_out) PARAMS ((bfd *, | |
2454 | const arelent *, | |
2455 | struct internal_reloc *)) | |
c9668c58 | 2456 | = backend->adjust_reloc_out; |
dae31cf5 ILT |
2457 | void (* const swap_reloc_out) PARAMS ((bfd *, |
2458 | const struct internal_reloc *, | |
2459 | PTR)) | |
2460 | = backend->swap_reloc_out; | |
8d12f138 ILT |
2461 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; |
2462 | HDRR * const symhdr = &debug->symbolic_header; | |
dae31cf5 ILT |
2463 | asection *current; |
2464 | unsigned int count; | |
966e0a16 | 2465 | bfd_size_type reloc_size; |
dae31cf5 ILT |
2466 | unsigned long text_size; |
2467 | unsigned long text_start; | |
2468 | unsigned long data_size; | |
2469 | unsigned long data_start; | |
2470 | unsigned long bss_size; | |
2471 | PTR buff; | |
2472 | struct internal_filehdr internal_f; | |
2473 | struct internal_aouthdr internal_a; | |
2474 | int i; | |
2475 | ||
2476 | bfd_error = system_call_error; | |
2477 | ||
966e0a16 ILT |
2478 | /* Determine where the sections and relocs will go in the output |
2479 | file. */ | |
2480 | reloc_size = ecoff_compute_reloc_file_positions (abfd); | |
dae31cf5 ILT |
2481 | |
2482 | count = 1; | |
dae31cf5 ILT |
2483 | for (current = abfd->sections; |
2484 | current != (asection *)NULL; | |
2485 | current = current->next) | |
2486 | { | |
8d12f138 | 2487 | if (strcmp (current->name, REGINFO) == 0) |
dae31cf5 ILT |
2488 | continue; |
2489 | current->target_index = count; | |
2490 | ++count; | |
dae31cf5 ILT |
2491 | } |
2492 | ||
dae31cf5 ILT |
2493 | if ((abfd->flags & D_PAGED) != 0) |
2494 | text_size = ecoff_sizeof_headers (abfd, false); | |
2495 | else | |
2496 | text_size = 0; | |
2497 | text_start = 0; | |
2498 | data_size = 0; | |
2499 | data_start = 0; | |
2500 | bss_size = 0; | |
2501 | ||
2502 | /* Write section headers to the file. */ | |
2503 | ||
2504 | buff = (PTR) alloca (scnhsz); | |
2505 | internal_f.f_nscns = 0; | |
2506 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) | |
2507 | return false; | |
2508 | for (current = abfd->sections; | |
2509 | current != (asection *) NULL; | |
2510 | current = current->next) | |
2511 | { | |
2512 | struct internal_scnhdr section; | |
2513 | bfd_vma vma; | |
2514 | ||
a7853216 ILT |
2515 | if (strcmp (current->name, REGINFO) == 0) |
2516 | { | |
c9668c58 | 2517 | BFD_ASSERT (current->reloc_count == 0); |
a7853216 ILT |
2518 | continue; |
2519 | } | |
dae31cf5 ILT |
2520 | |
2521 | ++internal_f.f_nscns; | |
2522 | ||
2523 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
2524 | ||
2525 | /* FIXME: is this correct for shared libraries? I think it is | |
2526 | but I have no platform to check. Ian Lance Taylor. */ | |
2527 | vma = bfd_get_section_vma (abfd, current); | |
2528 | if (strcmp (current->name, _LIB) == 0) | |
2529 | section.s_vaddr = 0; | |
2530 | else | |
2531 | section.s_vaddr = vma; | |
2532 | ||
2533 | section.s_paddr = vma; | |
2534 | section.s_size = bfd_get_section_size_before_reloc (current); | |
2535 | ||
e544ed4f ILT |
2536 | /* If this section is unloadable then the scnptr will be 0. */ |
2537 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
dae31cf5 ILT |
2538 | section.s_scnptr = 0; |
2539 | else | |
2540 | section.s_scnptr = current->filepos; | |
2541 | section.s_relptr = current->rel_filepos; | |
2542 | ||
2543 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
2544 | object file produced by the assembler is supposed to point to | |
2545 | information about how much room is required by objects of | |
2546 | various different sizes. I think this only matters if we | |
2547 | want the linker to compute the best size to use, or | |
2548 | something. I don't know what happens if the information is | |
2549 | not present. */ | |
3f048f7f ILT |
2550 | if (strcmp (current->name, _PDATA) != 0) |
2551 | section.s_lnnoptr = 0; | |
2552 | else | |
2553 | { | |
2554 | /* The Alpha ECOFF .pdata section uses the lnnoptr field to | |
2555 | hold the number of entries in the section (each entry is | |
2556 | 8 bytes). We stored this in the line_filepos field in | |
2557 | ecoff_compute_section_file_positions. */ | |
2558 | section.s_lnnoptr = current->line_filepos; | |
2559 | } | |
dae31cf5 ILT |
2560 | |
2561 | section.s_nreloc = current->reloc_count; | |
2562 | section.s_nlnno = 0; | |
2563 | section.s_flags = ecoff_sec_to_styp_flags (current->name, | |
2564 | current->flags); | |
2565 | ||
2566 | bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff); | |
2567 | if (bfd_write (buff, 1, scnhsz, abfd) != scnhsz) | |
2568 | return false; | |
2569 | ||
c9668c58 ILT |
2570 | if ((section.s_flags & STYP_TEXT) != 0 |
2571 | || ((section.s_flags & STYP_RDATA) != 0 | |
2572 | && backend->rdata_in_text) | |
2573 | || strcmp (current->name, _PDATA) == 0) | |
dae31cf5 ILT |
2574 | { |
2575 | text_size += bfd_get_section_size_before_reloc (current); | |
2576 | if (text_start == 0 || text_start > vma) | |
2577 | text_start = vma; | |
2578 | } | |
2579 | else if ((section.s_flags & STYP_RDATA) != 0 | |
2580 | || (section.s_flags & STYP_DATA) != 0 | |
c9668c58 | 2581 | || (section.s_flags & STYP_LITA) != 0 |
dae31cf5 ILT |
2582 | || (section.s_flags & STYP_LIT8) != 0 |
2583 | || (section.s_flags & STYP_LIT4) != 0 | |
966e0a16 ILT |
2584 | || (section.s_flags & STYP_SDATA) != 0 |
2585 | || strcmp (current->name, _XDATA) == 0) | |
dae31cf5 ILT |
2586 | { |
2587 | data_size += bfd_get_section_size_before_reloc (current); | |
2588 | if (data_start == 0 || data_start > vma) | |
2589 | data_start = vma; | |
2590 | } | |
2591 | else if ((section.s_flags & STYP_BSS) != 0 | |
2592 | || (section.s_flags & STYP_SBSS) != 0) | |
2593 | bss_size += bfd_get_section_size_before_reloc (current); | |
966e0a16 ILT |
2594 | else |
2595 | abort (); | |
dae31cf5 ILT |
2596 | } |
2597 | ||
2598 | /* Set up the file header. */ | |
2599 | ||
a7853216 | 2600 | internal_f.f_magic = ecoff_get_magic (abfd); |
dae31cf5 ILT |
2601 | |
2602 | /* We will NOT put a fucking timestamp in the header here. Every | |
2603 | time you put it back, I will come in and take it out again. I'm | |
2604 | sorry. This field does not belong here. We fill it with a 0 so | |
2605 | it compares the same but is not a reasonable time. -- | |
2606 | gnu@cygnus.com. */ | |
2607 | internal_f.f_timdat = 0; | |
2608 | ||
2609 | if (bfd_get_symcount (abfd) != 0) | |
2610 | { | |
2611 | /* The ECOFF f_nsyms field is not actually the number of | |
2612 | symbols, it's the size of symbolic information header. */ | |
2613 | internal_f.f_nsyms = external_hdr_size; | |
3f048f7f | 2614 | internal_f.f_symptr = ecoff_data (abfd)->sym_filepos; |
dae31cf5 ILT |
2615 | } |
2616 | else | |
2617 | { | |
2618 | internal_f.f_nsyms = 0; | |
2619 | internal_f.f_symptr = 0; | |
2620 | } | |
2621 | ||
2622 | internal_f.f_opthdr = aoutsz; | |
2623 | ||
2624 | internal_f.f_flags = F_LNNO; | |
2625 | if (reloc_size == 0) | |
2626 | internal_f.f_flags |= F_RELFLG; | |
2627 | if (bfd_get_symcount (abfd) == 0) | |
2628 | internal_f.f_flags |= F_LSYMS; | |
2629 | if (abfd->flags & EXEC_P) | |
2630 | internal_f.f_flags |= F_EXEC; | |
2631 | ||
2632 | if (! abfd->xvec->byteorder_big_p) | |
2633 | internal_f.f_flags |= F_AR32WR; | |
2634 | else | |
2635 | internal_f.f_flags |= F_AR32W; | |
2636 | ||
2637 | /* Set up the ``optional'' header. */ | |
2638 | if ((abfd->flags & D_PAGED) != 0) | |
2639 | internal_a.magic = ECOFF_AOUT_ZMAGIC; | |
2640 | else | |
2641 | internal_a.magic = ECOFF_AOUT_OMAGIC; | |
2642 | ||
3f048f7f ILT |
2643 | /* FIXME: Is this really correct? */ |
2644 | internal_a.vstamp = symhdr->vstamp; | |
dae31cf5 ILT |
2645 | |
2646 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
2647 | FIXME: Is this true on other platforms? */ | |
2648 | if ((abfd->flags & D_PAGED) != 0) | |
2649 | { | |
2650 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); | |
2651 | internal_a.text_start = text_start &~ (round - 1); | |
2652 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); | |
2653 | internal_a.data_start = data_start &~ (round - 1); | |
2654 | } | |
2655 | else | |
2656 | { | |
2657 | internal_a.tsize = text_size; | |
2658 | internal_a.text_start = text_start; | |
2659 | internal_a.dsize = data_size; | |
2660 | internal_a.data_start = data_start; | |
2661 | } | |
2662 | ||
2663 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
2664 | are at the end of the data section. The bsize field in the | |
2665 | optional header records how many bss bytes are required beyond | |
2666 | those in the data section. The value is not rounded to a page | |
2667 | boundary. */ | |
2668 | if (bss_size < internal_a.dsize - data_size) | |
2669 | bss_size = 0; | |
2670 | else | |
2671 | bss_size -= internal_a.dsize - data_size; | |
2672 | internal_a.bsize = bss_size; | |
2673 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
2674 | ||
2675 | internal_a.entry = bfd_get_start_address (abfd); | |
2676 | ||
2677 | internal_a.gp_value = ecoff_data (abfd)->gp; | |
2678 | ||
2679 | internal_a.gprmask = ecoff_data (abfd)->gprmask; | |
48edba81 | 2680 | internal_a.fprmask = ecoff_data (abfd)->fprmask; |
dae31cf5 ILT |
2681 | for (i = 0; i < 4; i++) |
2682 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
2683 | ||
2684 | /* Write out the file header and the optional header. */ | |
2685 | ||
2686 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
2687 | return false; | |
2688 | ||
2689 | buff = (PTR) alloca (filhsz); | |
2690 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff); | |
2691 | if (bfd_write (buff, 1, filhsz, abfd) != filhsz) | |
2692 | return false; | |
2693 | ||
2694 | buff = (PTR) alloca (aoutsz); | |
2695 | bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff); | |
2696 | if (bfd_write (buff, 1, aoutsz, abfd) != aoutsz) | |
2697 | return false; | |
2698 | ||
8d12f138 | 2699 | /* Build the external symbol information. This must be done before |
966e0a16 ILT |
2700 | writing out the relocs so that we know the symbol indices. The |
2701 | condition checks makes sure this object was not created by | |
2702 | ecoff_bfd_final_link, since if it was we do not want to tamper | |
2703 | with the external symbols. */ | |
3f048f7f | 2704 | if (bfd_get_outsymbols (abfd) != (asymbol **) NULL) |
dae31cf5 | 2705 | { |
966e0a16 ILT |
2706 | symhdr->iextMax = 0; |
2707 | symhdr->issExtMax = 0; | |
2708 | debug->external_ext = debug->external_ext_end = NULL; | |
2709 | debug->ssext = debug->ssext_end = NULL; | |
2710 | if (bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap, | |
2711 | (((abfd->flags & EXEC_P) == 0) | |
2712 | ? true : false), | |
2713 | ecoff_get_extr, ecoff_set_index) | |
2714 | == false) | |
2715 | return false; | |
dae31cf5 | 2716 | |
966e0a16 ILT |
2717 | /* Write out the relocs. */ |
2718 | for (current = abfd->sections; | |
2719 | current != (asection *) NULL; | |
2720 | current = current->next) | |
dae31cf5 | 2721 | { |
966e0a16 ILT |
2722 | arelent **reloc_ptr_ptr; |
2723 | arelent **reloc_end; | |
2724 | char *out_ptr; | |
dae31cf5 | 2725 | |
966e0a16 ILT |
2726 | if (current->reloc_count == 0) |
2727 | continue; | |
dae31cf5 | 2728 | |
966e0a16 ILT |
2729 | buff = bfd_alloc (abfd, current->reloc_count * external_reloc_size); |
2730 | if (buff == NULL) | |
dae31cf5 | 2731 | { |
966e0a16 ILT |
2732 | bfd_error = no_memory; |
2733 | return false; | |
dae31cf5 | 2734 | } |
966e0a16 ILT |
2735 | |
2736 | reloc_ptr_ptr = current->orelocation; | |
2737 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
2738 | out_ptr = (char *) buff; | |
2739 | for (; | |
2740 | reloc_ptr_ptr < reloc_end; | |
2741 | reloc_ptr_ptr++, out_ptr += external_reloc_size) | |
dae31cf5 | 2742 | { |
966e0a16 ILT |
2743 | arelent *reloc; |
2744 | asymbol *sym; | |
2745 | struct internal_reloc in; | |
2746 | ||
2747 | memset (&in, 0, sizeof in); | |
2748 | ||
2749 | reloc = *reloc_ptr_ptr; | |
2750 | sym = *reloc->sym_ptr_ptr; | |
2751 | ||
2752 | in.r_vaddr = (reloc->address | |
2753 | + bfd_get_section_vma (abfd, current)); | |
2754 | in.r_type = reloc->howto->type; | |
2755 | ||
2756 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
2757 | { | |
2758 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
2759 | in.r_extern = 1; | |
2760 | } | |
dae31cf5 | 2761 | else |
966e0a16 ILT |
2762 | { |
2763 | CONST char *name; | |
2764 | ||
2765 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
2766 | if (strcmp (name, ".text") == 0) | |
2767 | in.r_symndx = RELOC_SECTION_TEXT; | |
2768 | else if (strcmp (name, ".rdata") == 0) | |
2769 | in.r_symndx = RELOC_SECTION_RDATA; | |
2770 | else if (strcmp (name, ".data") == 0) | |
2771 | in.r_symndx = RELOC_SECTION_DATA; | |
2772 | else if (strcmp (name, ".sdata") == 0) | |
2773 | in.r_symndx = RELOC_SECTION_SDATA; | |
2774 | else if (strcmp (name, ".sbss") == 0) | |
2775 | in.r_symndx = RELOC_SECTION_SBSS; | |
2776 | else if (strcmp (name, ".bss") == 0) | |
2777 | in.r_symndx = RELOC_SECTION_BSS; | |
2778 | else if (strcmp (name, ".init") == 0) | |
2779 | in.r_symndx = RELOC_SECTION_INIT; | |
2780 | else if (strcmp (name, ".lit8") == 0) | |
2781 | in.r_symndx = RELOC_SECTION_LIT8; | |
2782 | else if (strcmp (name, ".lit4") == 0) | |
2783 | in.r_symndx = RELOC_SECTION_LIT4; | |
2784 | else if (strcmp (name, ".xdata") == 0) | |
2785 | in.r_symndx = RELOC_SECTION_XDATA; | |
2786 | else if (strcmp (name, ".pdata") == 0) | |
2787 | in.r_symndx = RELOC_SECTION_PDATA; | |
2788 | else if (strcmp (name, ".fini") == 0) | |
2789 | in.r_symndx = RELOC_SECTION_FINI; | |
2790 | else if (strcmp (name, ".lita") == 0) | |
2791 | in.r_symndx = RELOC_SECTION_LITA; | |
2792 | else if (strcmp (name, "*ABS*") == 0) | |
2793 | in.r_symndx = RELOC_SECTION_ABS; | |
2794 | else | |
2795 | abort (); | |
2796 | in.r_extern = 0; | |
2797 | } | |
2798 | ||
2799 | (*adjust_reloc_out) (abfd, reloc, &in); | |
2800 | ||
2801 | (*swap_reloc_out) (abfd, &in, (PTR) out_ptr); | |
dae31cf5 ILT |
2802 | } |
2803 | ||
966e0a16 ILT |
2804 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) |
2805 | return false; | |
2806 | if (bfd_write (buff, external_reloc_size, current->reloc_count, abfd) | |
2807 | != external_reloc_size * current->reloc_count) | |
2808 | return false; | |
2809 | bfd_release (abfd, buff); | |
dae31cf5 | 2810 | } |
dae31cf5 | 2811 | |
3f048f7f ILT |
2812 | /* Write out the symbolic debugging information. */ |
2813 | if (bfd_get_symcount (abfd) > 0) | |
2814 | { | |
2815 | /* Write out the debugging information. */ | |
2816 | if (bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap, | |
2817 | ecoff_data (abfd)->sym_filepos) | |
2818 | == false) | |
2819 | return false; | |
2820 | } | |
2821 | else if ((abfd->flags & EXEC_P) != 0 | |
2822 | && (abfd->flags & D_PAGED) != 0) | |
2823 | { | |
2824 | char c; | |
dae31cf5 | 2825 | |
3f048f7f ILT |
2826 | /* A demand paged executable must occupy an even number of |
2827 | pages. */ | |
2828 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2829 | SEEK_SET) != 0) | |
2830 | return false; | |
2831 | if (bfd_read (&c, 1, 1, abfd) == 0) | |
2832 | c = 0; | |
2833 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2834 | SEEK_SET) != 0) | |
2835 | return false; | |
2836 | if (bfd_write (&c, 1, 1, abfd) != 1) | |
2837 | return false; | |
2838 | } | |
dae31cf5 ILT |
2839 | } |
2840 | ||
2841 | return true; | |
2842 | } | |
2843 | \f | |
2844 | /* Archive handling. ECOFF uses what appears to be a unique type of | |
b59f0276 ILT |
2845 | archive header (armap). The byte ordering of the armap and the |
2846 | contents are encoded in the name of the armap itself. At least for | |
2847 | now, we only support archives with the same byte ordering in the | |
2848 | armap and the contents. | |
dae31cf5 ILT |
2849 | |
2850 | The first four bytes in the armap are the number of symbol | |
2851 | definitions. This is always a power of two. | |
2852 | ||
2853 | This is followed by the symbol definitions. Each symbol definition | |
2854 | occupies 8 bytes. The first four bytes are the offset from the | |
2855 | start of the armap strings to the null-terminated string naming | |
2856 | this symbol. The second four bytes are the file offset to the | |
2857 | archive member which defines this symbol. If the second four bytes | |
2858 | are 0, then this is not actually a symbol definition, and it should | |
2859 | be ignored. | |
2860 | ||
2861 | The symbols are hashed into the armap with a closed hashing scheme. | |
2862 | See the functions below for the details of the algorithm. | |
2863 | ||
dae31cf5 ILT |
2864 | After the symbol definitions comes four bytes holding the size of |
2865 | the string table, followed by the string table itself. */ | |
2866 | ||
2867 | /* The name of an archive headers looks like this: | |
2868 | __________E[BL]E[BL]_ (with a trailing space). | |
2869 | The trailing space is changed to an X if the archive is changed to | |
48edba81 ILT |
2870 | indicate that the armap is out of date. |
2871 | ||
2872 | The Alpha seems to use ________64E[BL]E[BL]_. */ | |
dae31cf5 ILT |
2873 | |
2874 | #define ARMAP_BIG_ENDIAN 'B' | |
2875 | #define ARMAP_LITTLE_ENDIAN 'L' | |
2876 | #define ARMAP_MARKER 'E' | |
48edba81 | 2877 | #define ARMAP_START_LENGTH 10 |
dae31cf5 ILT |
2878 | #define ARMAP_HEADER_MARKER_INDEX 10 |
2879 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
2880 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
2881 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
2882 | #define ARMAP_END_INDEX 14 | |
2883 | #define ARMAP_END "_ " | |
2884 | ||
2885 | /* This is a magic number used in the hashing algorithm. */ | |
2886 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
2887 | ||
2888 | /* This returns the hash value to use for a string. It also sets | |
2889 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
2890 | is the number of entries in the hash table, and HLOG is the log | |
2891 | base 2 of SIZE. */ | |
2892 | ||
2893 | static unsigned int | |
2894 | ecoff_armap_hash (s, rehash, size, hlog) | |
2895 | CONST char *s; | |
2896 | unsigned int *rehash; | |
2897 | unsigned int size; | |
2898 | unsigned int hlog; | |
2899 | { | |
2900 | unsigned int hash; | |
2901 | ||
2902 | hash = *s++; | |
2903 | while (*s != '\0') | |
2904 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
2905 | hash *= ARMAP_HASH_MAGIC; | |
2906 | *rehash = (hash & (size - 1)) | 1; | |
2907 | return hash >> (32 - hlog); | |
2908 | } | |
2909 | ||
2910 | /* Read in the armap. */ | |
2911 | ||
2912 | boolean | |
2913 | ecoff_slurp_armap (abfd) | |
2914 | bfd *abfd; | |
2915 | { | |
2916 | char nextname[17]; | |
2917 | unsigned int i; | |
2918 | struct areltdata *mapdata; | |
2919 | bfd_size_type parsed_size; | |
2920 | char *raw_armap; | |
2921 | struct artdata *ardata; | |
2922 | unsigned int count; | |
2923 | char *raw_ptr; | |
2924 | struct symdef *symdef_ptr; | |
2925 | char *stringbase; | |
2926 | ||
2927 | /* Get the name of the first element. */ | |
2928 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
2929 | if (i == 0) | |
2930 | return true; | |
2931 | if (i != 16) | |
2932 | return false; | |
2933 | ||
2934 | bfd_seek (abfd, (file_ptr) -16, SEEK_CUR); | |
2935 | ||
8c11363a ILT |
2936 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a |
2937 | standard COFF armap. We could move the ECOFF armap stuff into | |
2938 | bfd_slurp_armap, but that seems inappropriate since no other | |
2939 | target uses this format. Instead, we check directly for a COFF | |
2940 | armap. */ | |
2941 | if (strncmp (nextname, "/ ", 16) == 0) | |
2942 | return bfd_slurp_armap (abfd); | |
2943 | ||
dae31cf5 | 2944 | /* See if the first element is an armap. */ |
48edba81 ILT |
2945 | if (strncmp (nextname, ecoff_backend (abfd)->armap_start, |
2946 | ARMAP_START_LENGTH) != 0 | |
dae31cf5 ILT |
2947 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER |
2948 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
2949 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
2950 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
2951 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
2952 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
2953 | || strncmp (nextname + ARMAP_END_INDEX, | |
2954 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
2955 | { | |
2956 | bfd_has_map (abfd) = false; | |
2957 | return true; | |
2958 | } | |
2959 | ||
2960 | /* Make sure we have the right byte ordering. */ | |
2961 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
2962 | ^ (abfd->xvec->header_byteorder_big_p != false)) | |
2963 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
2964 | ^ (abfd->xvec->byteorder_big_p != false))) | |
2965 | { | |
2966 | bfd_error = wrong_format; | |
2967 | return false; | |
2968 | } | |
2969 | ||
2970 | /* Read in the armap. */ | |
2971 | ardata = bfd_ardata (abfd); | |
b59f0276 | 2972 | mapdata = _bfd_snarf_ar_hdr (abfd); |
dae31cf5 ILT |
2973 | if (mapdata == (struct areltdata *) NULL) |
2974 | return false; | |
2975 | parsed_size = mapdata->parsed_size; | |
2976 | bfd_release (abfd, (PTR) mapdata); | |
2977 | ||
2978 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
2979 | if (raw_armap == (char *) NULL) | |
2980 | { | |
2981 | bfd_error = no_memory; | |
2982 | return false; | |
2983 | } | |
2984 | ||
2985 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
2986 | { | |
2987 | bfd_error = malformed_archive; | |
2988 | bfd_release (abfd, (PTR) raw_armap); | |
2989 | return false; | |
2990 | } | |
2991 | ||
b59f0276 ILT |
2992 | ardata->tdata = (PTR) raw_armap; |
2993 | ||
dae31cf5 ILT |
2994 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); |
2995 | ||
2996 | ardata->symdef_count = 0; | |
2997 | ardata->cache = (struct ar_cache *) NULL; | |
2998 | ||
48edba81 ILT |
2999 | /* This code used to overlay the symdefs over the raw archive data, |
3000 | but that doesn't work on a 64 bit host. */ | |
3001 | ||
e544ed4f | 3002 | stringbase = raw_armap + count * 8 + 8; |
dae31cf5 ILT |
3003 | |
3004 | #ifdef CHECK_ARMAP_HASH | |
3005 | { | |
3006 | unsigned int hlog; | |
3007 | ||
3008 | /* Double check that I have the hashing algorithm right by making | |
3009 | sure that every symbol can be looked up successfully. */ | |
3010 | hlog = 0; | |
3011 | for (i = 1; i < count; i <<= 1) | |
3012 | hlog++; | |
3013 | BFD_ASSERT (i == count); | |
3014 | ||
e544ed4f ILT |
3015 | raw_ptr = raw_armap + 4; |
3016 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3017 | { |
3018 | unsigned int name_offset, file_offset; | |
3019 | unsigned int hash, rehash, srch; | |
3020 | ||
3021 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
e544ed4f | 3022 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3023 | if (file_offset == 0) |
3024 | continue; | |
3025 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3026 | hlog); | |
3027 | if (hash == i) | |
3028 | continue; | |
3029 | ||
3030 | /* See if we can rehash to this location. */ | |
3031 | for (srch = (hash + rehash) & (count - 1); | |
3032 | srch != hash && srch != i; | |
3033 | srch = (srch + rehash) & (count - 1)) | |
e544ed4f | 3034 | BFD_ASSERT (bfd_h_get_32 (abfd, (PTR) (raw_armap + 8 + srch * 8)) |
dae31cf5 ILT |
3035 | != 0); |
3036 | BFD_ASSERT (srch == i); | |
3037 | } | |
3038 | } | |
3039 | ||
dae31cf5 ILT |
3040 | #endif /* CHECK_ARMAP_HASH */ |
3041 | ||
e544ed4f ILT |
3042 | raw_ptr = raw_armap + 4; |
3043 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3044 | if (bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)) != 0) | |
48edba81 ILT |
3045 | ++ardata->symdef_count; |
3046 | ||
3047 | symdef_ptr = ((struct symdef *) | |
3048 | bfd_alloc (abfd, | |
3049 | ardata->symdef_count * sizeof (struct symdef))); | |
3050 | ardata->symdefs = (carsym *) symdef_ptr; | |
3051 | ||
e544ed4f ILT |
3052 | raw_ptr = raw_armap + 4; |
3053 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3054 | { |
3055 | unsigned int name_offset, file_offset; | |
3056 | ||
e544ed4f | 3057 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3058 | if (file_offset == 0) |
3059 | continue; | |
48edba81 | 3060 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); |
dae31cf5 ILT |
3061 | symdef_ptr->s.name = stringbase + name_offset; |
3062 | symdef_ptr->file_offset = file_offset; | |
3063 | ++symdef_ptr; | |
dae31cf5 ILT |
3064 | } |
3065 | ||
3066 | ardata->first_file_filepos = bfd_tell (abfd); | |
3067 | /* Pad to an even boundary. */ | |
3068 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3069 | ||
3070 | bfd_has_map (abfd) = true; | |
3071 | ||
3072 | return true; | |
3073 | } | |
3074 | ||
3075 | /* Write out an armap. */ | |
3076 | ||
3077 | boolean | |
3078 | ecoff_write_armap (abfd, elength, map, orl_count, stridx) | |
3079 | bfd *abfd; | |
3080 | unsigned int elength; | |
3081 | struct orl *map; | |
3082 | unsigned int orl_count; | |
3083 | int stridx; | |
3084 | { | |
3085 | unsigned int hashsize, hashlog; | |
3086 | unsigned int symdefsize; | |
3087 | int padit; | |
3088 | unsigned int stringsize; | |
3089 | unsigned int mapsize; | |
3090 | file_ptr firstreal; | |
3091 | struct ar_hdr hdr; | |
3092 | struct stat statbuf; | |
3093 | unsigned int i; | |
e544ed4f | 3094 | bfd_byte temp[4]; |
dae31cf5 ILT |
3095 | bfd_byte *hashtable; |
3096 | bfd *current; | |
3097 | bfd *last_elt; | |
3098 | ||
3099 | /* Ultrix appears to use as a hash table size the least power of two | |
3100 | greater than twice the number of entries. */ | |
3101 | for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) | |
3102 | ; | |
3103 | hashsize = 1 << hashlog; | |
3104 | ||
e544ed4f | 3105 | symdefsize = hashsize * 8; |
dae31cf5 ILT |
3106 | padit = stridx % 2; |
3107 | stringsize = stridx + padit; | |
3108 | ||
3109 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
e544ed4f | 3110 | mapsize = symdefsize + stringsize + 8; |
dae31cf5 ILT |
3111 | |
3112 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3113 | ||
3114 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3115 | ||
3116 | /* Work out the ECOFF armap name. */ | |
48edba81 | 3117 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); |
dae31cf5 ILT |
3118 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; |
3119 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3120 | (abfd->xvec->header_byteorder_big_p | |
3121 | ? ARMAP_BIG_ENDIAN | |
3122 | : ARMAP_LITTLE_ENDIAN); | |
3123 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3124 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3125 | abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3126 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3127 | ||
3128 | /* Write the timestamp of the archive header to be just a little bit | |
3129 | later than the timestamp of the file, otherwise the linker will | |
3130 | complain that the index is out of date. Actually, the Ultrix | |
3131 | linker just checks the archive name; the GNU linker may check the | |
3132 | date. */ | |
3133 | stat (abfd->filename, &statbuf); | |
3134 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3135 | ||
3136 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3137 | armap. */ | |
3138 | hdr.ar_uid[0] = '0'; | |
3139 | hdr.ar_gid[0] = '0'; | |
3140 | hdr.ar_mode[0] = '0'; | |
3141 | ||
3142 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3143 | ||
3144 | hdr.ar_fmag[0] = '`'; | |
3145 | hdr.ar_fmag[1] = '\n'; | |
3146 | ||
3147 | /* Turn all null bytes in the header into spaces. */ | |
3148 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3149 | if (((char *)(&hdr))[i] == '\0') | |
3150 | (((char *)(&hdr))[i]) = ' '; | |
3151 | ||
3152 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) | |
3153 | != sizeof (struct ar_hdr)) | |
3154 | return false; | |
3155 | ||
4c3721d5 | 3156 | bfd_h_put_32 (abfd, (bfd_vma) hashsize, temp); |
728472f1 | 3157 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3158 | return false; |
3159 | ||
3160 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); | |
3161 | ||
3162 | current = abfd->archive_head; | |
3163 | last_elt = current; | |
3164 | for (i = 0; i < orl_count; i++) | |
3165 | { | |
3166 | unsigned int hash, rehash; | |
3167 | ||
3168 | /* Advance firstreal to the file position of this archive | |
3169 | element. */ | |
3170 | if (((bfd *) map[i].pos) != last_elt) | |
3171 | { | |
3172 | do | |
3173 | { | |
3174 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3175 | firstreal += firstreal % 2; | |
3176 | current = current->next; | |
3177 | } | |
3178 | while (current != (bfd *) map[i].pos); | |
3179 | } | |
3180 | ||
3181 | last_elt = current; | |
3182 | ||
3183 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); | |
e544ed4f | 3184 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (hash * 8) + 4)) != 0) |
dae31cf5 ILT |
3185 | { |
3186 | unsigned int srch; | |
3187 | ||
3188 | /* The desired slot is already taken. */ | |
3189 | for (srch = (hash + rehash) & (hashsize - 1); | |
3190 | srch != hash; | |
3191 | srch = (srch + rehash) & (hashsize - 1)) | |
e544ed4f | 3192 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (srch * 8) + 4)) == 0) |
dae31cf5 ILT |
3193 | break; |
3194 | ||
3195 | BFD_ASSERT (srch != hash); | |
3196 | ||
3197 | hash = srch; | |
3198 | } | |
3199 | ||
4c3721d5 ILT |
3200 | bfd_h_put_32 (abfd, (bfd_vma) map[i].namidx, |
3201 | (PTR) (hashtable + hash * 8)); | |
3202 | bfd_h_put_32 (abfd, (bfd_vma) firstreal, | |
3203 | (PTR) (hashtable + hash * 8 + 4)); | |
dae31cf5 ILT |
3204 | } |
3205 | ||
728472f1 | 3206 | if (bfd_write ((PTR) hashtable, 1, symdefsize, abfd) != symdefsize) |
dae31cf5 ILT |
3207 | return false; |
3208 | ||
3209 | bfd_release (abfd, hashtable); | |
3210 | ||
3211 | /* Now write the strings. */ | |
4c3721d5 | 3212 | bfd_h_put_32 (abfd, (bfd_vma) stringsize, temp); |
728472f1 | 3213 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3214 | return false; |
3215 | for (i = 0; i < orl_count; i++) | |
3216 | { | |
3217 | bfd_size_type len; | |
3218 | ||
3219 | len = strlen (*map[i].name) + 1; | |
3220 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3221 | return false; | |
3222 | } | |
3223 | ||
3224 | /* The spec sez this should be a newline. But in order to be | |
3225 | bug-compatible for DECstation ar we use a null. */ | |
3226 | if (padit) | |
3227 | { | |
728472f1 | 3228 | if (bfd_write ("", 1, 1, abfd) != 1) |
dae31cf5 ILT |
3229 | return false; |
3230 | } | |
3231 | ||
3232 | return true; | |
3233 | } | |
3234 | ||
3235 | /* See whether this BFD is an archive. If it is, read in the armap | |
3236 | and the extended name table. */ | |
3237 | ||
3238 | bfd_target * | |
3239 | ecoff_archive_p (abfd) | |
3240 | bfd *abfd; | |
3241 | { | |
3242 | char armag[SARMAG + 1]; | |
3243 | ||
3244 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG | |
3245 | || strncmp (armag, ARMAG, SARMAG) != 0) | |
3246 | { | |
3247 | bfd_error = wrong_format; | |
3248 | return (bfd_target *) NULL; | |
3249 | } | |
3250 | ||
3251 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3252 | involves a cast, we can't do it as the left operand of | |
3253 | assignment. */ | |
3254 | abfd->tdata.aout_ar_data = | |
3255 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3256 | ||
3257 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3258 | { | |
3259 | bfd_error = no_memory; | |
3260 | return (bfd_target *) NULL; | |
3261 | } | |
3262 | ||
3263 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
b59f0276 ILT |
3264 | bfd_ardata (abfd)->cache = NULL; |
3265 | bfd_ardata (abfd)->archive_head = NULL; | |
3266 | bfd_ardata (abfd)->symdefs = NULL; | |
3267 | bfd_ardata (abfd)->extended_names = NULL; | |
3268 | bfd_ardata (abfd)->tdata = NULL; | |
dae31cf5 ILT |
3269 | |
3270 | if (ecoff_slurp_armap (abfd) == false | |
3271 | || ecoff_slurp_extended_name_table (abfd) == false) | |
3272 | { | |
3273 | bfd_release (abfd, bfd_ardata (abfd)); | |
3274 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
3275 | return (bfd_target *) NULL; | |
3276 | } | |
3277 | ||
3278 | return abfd->xvec; | |
3279 | } | |
966e0a16 ILT |
3280 | \f |
3281 | /* ECOFF linker code. */ | |
3282 | ||
3283 | static struct bfd_hash_entry *ecoff_link_hash_newfunc | |
3284 | PARAMS ((struct bfd_hash_entry *entry, | |
3285 | struct bfd_hash_table *table, | |
3286 | const char *string)); | |
3287 | static boolean ecoff_link_add_archive_symbols | |
3288 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3289 | static boolean ecoff_link_check_archive_element | |
3290 | PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded)); | |
3291 | static boolean ecoff_link_add_object_symbols | |
3292 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3293 | static boolean ecoff_link_add_externals | |
3294 | PARAMS ((bfd *, struct bfd_link_info *, PTR, char *)); | |
3295 | ||
3296 | /* Routine to create an entry in an ECOFF link hash table. */ | |
3297 | ||
3298 | static struct bfd_hash_entry * | |
3299 | ecoff_link_hash_newfunc (entry, table, string) | |
3300 | struct bfd_hash_entry *entry; | |
3301 | struct bfd_hash_table *table; | |
3302 | const char *string; | |
3303 | { | |
3304 | struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry; | |
3305 | ||
3306 | /* Allocate the structure if it has not already been allocated by a | |
3307 | subclass. */ | |
3308 | if (ret == (struct ecoff_link_hash_entry *) NULL) | |
3309 | ret = ((struct ecoff_link_hash_entry *) | |
3310 | bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry))); | |
3311 | ||
3312 | /* Call the allocation method of the superclass. */ | |
3313 | ret = ((struct ecoff_link_hash_entry *) | |
3314 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3315 | table, string)); | |
3316 | ||
3317 | /* Set local fields. */ | |
3318 | ret->indx = -1; | |
3319 | ret->abfd = NULL; | |
3320 | memset (&ret->esym, 0, sizeof ret->esym); | |
3321 | ||
3322 | return (struct bfd_hash_entry *) ret; | |
3323 | } | |
3324 | ||
3325 | /* Create an ECOFF link hash table. */ | |
3326 | ||
3327 | struct bfd_link_hash_table * | |
3328 | ecoff_bfd_link_hash_table_create (abfd) | |
3329 | bfd *abfd; | |
3330 | { | |
3331 | struct ecoff_link_hash_table *ret; | |
3332 | ||
3333 | ret = ((struct ecoff_link_hash_table *) | |
3334 | bfd_xmalloc (sizeof (struct ecoff_link_hash_table))); | |
3335 | if (! _bfd_link_hash_table_init (&ret->root, abfd, | |
3336 | ecoff_link_hash_newfunc)) | |
3337 | { | |
3338 | free (ret); | |
3339 | return (struct bfd_link_hash_table *) NULL; | |
3340 | } | |
3341 | return &ret->root; | |
3342 | } | |
3343 | ||
3344 | /* Look up an entry in an ECOFF link hash table. */ | |
3345 | ||
3346 | #define ecoff_link_hash_lookup(table, string, create, copy, follow) \ | |
3347 | ((struct ecoff_link_hash_entry *) \ | |
3348 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow))) | |
3349 | ||
3350 | /* Traverse an ECOFF link hash table. */ | |
3351 | ||
3352 | #define ecoff_link_hash_traverse(table, func, info) \ | |
3353 | (bfd_link_hash_traverse \ | |
3354 | (&(table)->root, \ | |
3355 | (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ | |
3356 | (info))) | |
3357 | ||
3358 | /* Get the ECOFF link hash table from the info structure. This is | |
3359 | just a cast. */ | |
3360 | ||
3361 | #define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash)) | |
3362 | ||
3363 | /* Given an ECOFF BFD, add symbols to the global hash table as | |
3364 | appropriate. */ | |
3365 | ||
3366 | boolean | |
3367 | ecoff_bfd_link_add_symbols (abfd, info) | |
3368 | bfd *abfd; | |
3369 | struct bfd_link_info *info; | |
3370 | { | |
3371 | switch (bfd_get_format (abfd)) | |
3372 | { | |
3373 | case bfd_object: | |
3374 | return ecoff_link_add_object_symbols (abfd, info); | |
3375 | case bfd_archive: | |
3376 | return ecoff_link_add_archive_symbols (abfd, info); | |
3377 | default: | |
3378 | bfd_error = wrong_format; | |
3379 | return false; | |
3380 | } | |
3381 | } | |
3382 | ||
3383 | /* Add the symbols from an archive file to the global hash table. | |
3384 | This looks through the undefined symbols, looks each one up in the | |
3385 | archive hash table, and adds any associated object file. We do not | |
3386 | use _bfd_generic_link_add_archive_symbols because ECOFF archives | |
3387 | already have a hash table, so there is no reason to construct | |
3388 | another one. */ | |
3389 | ||
3390 | static boolean | |
3391 | ecoff_link_add_archive_symbols (abfd, info) | |
3392 | bfd *abfd; | |
3393 | struct bfd_link_info *info; | |
3394 | { | |
3395 | const bfd_byte *raw_armap; | |
3396 | struct bfd_link_hash_entry **pundef; | |
3397 | unsigned int armap_count; | |
3398 | unsigned int armap_log; | |
3399 | unsigned int i; | |
3400 | const bfd_byte *hashtable; | |
3401 | const char *stringbase; | |
3402 | ||
3403 | if (! bfd_has_map (abfd)) | |
3404 | { | |
3405 | bfd_error = no_symbols; | |
3406 | return false; | |
3407 | } | |
3408 | ||
3409 | /* If we don't have any raw data for this archive, as can happen on | |
3410 | Irix 4.0.5F, we call the generic routine. | |
3411 | FIXME: We should be more clever about this, since someday tdata | |
3412 | may get to something for a generic archive. */ | |
3413 | raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata; | |
3414 | if (raw_armap == (bfd_byte *) NULL) | |
3415 | return (_bfd_generic_link_add_archive_symbols | |
3416 | (abfd, info, ecoff_link_check_archive_element)); | |
3417 | ||
3418 | armap_count = bfd_h_get_32 (abfd, raw_armap); | |
3419 | ||
3420 | armap_log = 0; | |
3421 | for (i = 1; i < armap_count; i <<= 1) | |
3422 | armap_log++; | |
3423 | BFD_ASSERT (i == armap_count); | |
3424 | ||
3425 | hashtable = raw_armap + 4; | |
3426 | stringbase = (const char *) raw_armap + armap_count * 8 + 8; | |
3427 | ||
3428 | /* Look through the list of undefined symbols. */ | |
3429 | pundef = &info->hash->undefs; | |
3430 | while (*pundef != (struct bfd_link_hash_entry *) NULL) | |
3431 | { | |
3432 | struct bfd_link_hash_entry *h; | |
3433 | unsigned int hash, rehash; | |
3434 | unsigned int file_offset; | |
3435 | const char *name; | |
3436 | bfd *element; | |
3437 | ||
3438 | h = *pundef; | |
3439 | ||
3440 | /* When a symbol is defined, it is not necessarily removed from | |
3441 | the list. */ | |
3442 | if (h->type != bfd_link_hash_undefined | |
3443 | && h->type != bfd_link_hash_common) | |
3444 | { | |
3445 | /* Remove this entry from the list, for general cleanliness | |
3446 | and because we are going to look through the list again | |
3447 | if we search any more libraries. We can't remove the | |
3448 | entry if it is the tail, because that would lose any | |
3449 | entries we add to the list later on. */ | |
3450 | if (*pundef != info->hash->undefs_tail) | |
3451 | *pundef = (*pundef)->next; | |
3452 | else | |
3453 | pundef = &(*pundef)->next; | |
3454 | continue; | |
3455 | } | |
3456 | ||
3457 | /* Native ECOFF linkers do not pull in archive elements merely | |
3458 | to satisfy common definitions, so neither do we. We leave | |
3459 | them on the list, though, in case we are linking against some | |
3460 | other object format. */ | |
3461 | if (h->type != bfd_link_hash_undefined) | |
3462 | { | |
3463 | pundef = &(*pundef)->next; | |
3464 | continue; | |
3465 | } | |
3466 | ||
3467 | /* Look for this symbol in the archive hash table. */ | |
3468 | hash = ecoff_armap_hash (h->root.string, &rehash, armap_count, | |
3469 | armap_log); | |
3470 | ||
3471 | file_offset = bfd_h_get_32 (abfd, hashtable + (hash * 8) + 4); | |
3472 | if (file_offset == 0) | |
3473 | { | |
3474 | /* Nothing in this slot. */ | |
3475 | pundef = &(*pundef)->next; | |
3476 | continue; | |
3477 | } | |
3478 | ||
3479 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (hash * 8)); | |
3480 | if (name[0] != h->root.string[0] | |
3481 | || strcmp (name, h->root.string) != 0) | |
3482 | { | |
3483 | unsigned int srch; | |
3484 | boolean found; | |
3485 | ||
3486 | /* That was the wrong symbol. Try rehashing. */ | |
3487 | found = false; | |
3488 | for (srch = (hash + rehash) & (armap_count - 1); | |
3489 | srch != hash; | |
3490 | srch = (srch + rehash) & (armap_count - 1)) | |
3491 | { | |
3492 | file_offset = bfd_h_get_32 (abfd, hashtable + (srch * 8) + 4); | |
3493 | if (file_offset == 0) | |
3494 | break; | |
3495 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (srch * 8)); | |
3496 | if (name[0] == h->root.string[0] | |
3497 | && strcmp (name, h->root.string) == 0) | |
3498 | { | |
3499 | found = true; | |
3500 | break; | |
3501 | } | |
3502 | } | |
3503 | ||
3504 | if (! found) | |
3505 | { | |
3506 | pundef = &(*pundef)->next; | |
3507 | continue; | |
3508 | } | |
3509 | ||
3510 | hash = srch; | |
3511 | } | |
3512 | ||
3513 | element = _bfd_get_elt_at_filepos (abfd, file_offset); | |
3514 | if (element == (bfd *) NULL) | |
3515 | return false; | |
3516 | ||
3517 | if (! bfd_check_format (element, bfd_object)) | |
3518 | return false; | |
3519 | ||
3520 | /* Unlike the generic linker, we know that this element provides | |
3521 | a definition for an undefined symbol and we know that we want | |
3522 | to include it. We don't need to check anything. */ | |
3523 | if (! (*info->callbacks->add_archive_element) (info, element, name)) | |
3524 | return false; | |
3525 | if (! ecoff_link_add_object_symbols (element, info)) | |
3526 | return false; | |
3527 | ||
3528 | pundef = &(*pundef)->next; | |
3529 | } | |
3530 | ||
3531 | return true; | |
3532 | } | |
3533 | ||
3534 | /* This is called if we used _bfd_generic_link_add_archive_symbols | |
3535 | because we were not dealing with an ECOFF archive. */ | |
3536 | ||
3537 | static boolean | |
3538 | ecoff_link_check_archive_element (abfd, info, pneeded) | |
3539 | bfd *abfd; | |
3540 | struct bfd_link_info *info; | |
3541 | boolean *pneeded; | |
3542 | { | |
3543 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3544 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3545 | = backend->debug_swap.swap_ext_in; | |
3546 | HDRR *symhdr; | |
3547 | bfd_size_type external_ext_size; | |
3548 | PTR external_ext; | |
3549 | size_t esize; | |
3550 | char *ssext; | |
3551 | char *ext_ptr; | |
3552 | char *ext_end; | |
3553 | ||
3554 | *pneeded = false; | |
3555 | ||
3556 | if (! ecoff_slurp_symbolic_header (abfd)) | |
3557 | return false; | |
3558 | ||
3559 | /* If there are no symbols, we don't want it. */ | |
3560 | if (bfd_get_symcount (abfd) == 0) | |
3561 | return true; | |
3562 | ||
3563 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3564 | ||
3565 | /* Read in the external symbols and external strings. */ | |
3566 | external_ext_size = backend->debug_swap.external_ext_size; | |
3567 | esize = symhdr->iextMax * external_ext_size; | |
3568 | external_ext = (PTR) alloca (esize); | |
3569 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 | |
3570 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
3571 | return false; | |
3572 | ||
3573 | ssext = (char *) alloca (symhdr->issExtMax); | |
3574 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 | |
3575 | || bfd_read (ssext, 1, symhdr->issExtMax, abfd) != symhdr->issExtMax) | |
3576 | return false; | |
3577 | ||
3578 | /* Look through the external symbols to see if they define some | |
3579 | symbol that is currently undefined. */ | |
3580 | ext_ptr = (char *) external_ext; | |
3581 | ext_end = ext_ptr + esize; | |
3582 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size) | |
3583 | { | |
3584 | EXTR esym; | |
3585 | boolean def; | |
3586 | const char *name; | |
3587 | struct bfd_link_hash_entry *h; | |
3588 | ||
3589 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3590 | ||
3591 | /* See if this symbol defines something. */ | |
3592 | if (esym.asym.st != stGlobal | |
3593 | && esym.asym.st != stLabel | |
3594 | && esym.asym.st != stProc) | |
3595 | continue; | |
3596 | ||
3597 | switch (esym.asym.sc) | |
3598 | { | |
3599 | case scText: | |
3600 | case scData: | |
3601 | case scBss: | |
3602 | case scAbs: | |
3603 | case scSData: | |
3604 | case scSBss: | |
3605 | case scRData: | |
3606 | case scCommon: | |
3607 | case scSCommon: | |
3608 | case scInit: | |
3609 | case scFini: | |
3610 | def = true; | |
3611 | break; | |
3612 | default: | |
3613 | def = false; | |
3614 | break; | |
3615 | } | |
3616 | ||
3617 | if (! def) | |
3618 | continue; | |
3619 | ||
3620 | name = ssext + esym.asym.iss; | |
3621 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); | |
3622 | ||
3623 | /* Unlike the generic linker, we do not pull in elements because | |
3624 | of common symbols. */ | |
3625 | if (h == (struct bfd_link_hash_entry *) NULL | |
3626 | || h->type != bfd_link_hash_undefined) | |
3627 | continue; | |
3628 | ||
3629 | /* Include this element. */ | |
3630 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
3631 | return false; | |
3632 | if (! ecoff_link_add_externals (abfd, info, external_ext, ssext)) | |
3633 | return false; | |
3634 | ||
3635 | *pneeded = true; | |
3636 | return true; | |
3637 | } | |
3638 | ||
3639 | return true; | |
3640 | } | |
3641 | ||
3642 | /* Add symbols from an ECOFF object file to the global linker hash | |
3643 | table. */ | |
3644 | ||
3645 | static boolean | |
3646 | ecoff_link_add_object_symbols (abfd, info) | |
3647 | bfd *abfd; | |
3648 | struct bfd_link_info *info; | |
3649 | { | |
3650 | HDRR *symhdr; | |
3651 | bfd_size_type external_ext_size; | |
3652 | PTR external_ext; | |
3653 | size_t esize; | |
3654 | char *ssext; | |
3655 | ||
3656 | if (! ecoff_slurp_symbolic_header (abfd)) | |
3657 | return false; | |
3658 | ||
3659 | /* If there are no symbols, we don't want it. */ | |
3660 | if (bfd_get_symcount (abfd) == 0) | |
3661 | return true; | |
3662 | ||
3663 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3664 | ||
3665 | /* Read in the external symbols and external strings. */ | |
3666 | external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size; | |
3667 | esize = symhdr->iextMax * external_ext_size; | |
3668 | external_ext = (PTR) alloca (esize); | |
3669 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 | |
3670 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
3671 | return false; | |
3672 | ||
3673 | ssext = (char *) alloca (symhdr->issExtMax); | |
3674 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 | |
3675 | || bfd_read (ssext, 1, symhdr->issExtMax, abfd) != symhdr->issExtMax) | |
3676 | return false; | |
3677 | ||
3678 | return ecoff_link_add_externals (abfd, info, external_ext, ssext); | |
3679 | } | |
3680 | ||
3681 | /* Add the external symbols of an object file to the global linker | |
3682 | hash table. The external symbols and strings we are passed are | |
3683 | just allocated on the stack, and will be discarded. We must | |
3684 | explicitly save any information we may need later on in the link. | |
3685 | We do not want to read the external symbol information again. */ | |
3686 | ||
3687 | static boolean | |
3688 | ecoff_link_add_externals (abfd, info, external_ext, ssext) | |
3689 | bfd *abfd; | |
3690 | struct bfd_link_info *info; | |
3691 | PTR external_ext; | |
3692 | char *ssext; | |
3693 | { | |
3694 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3695 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3696 | = backend->debug_swap.swap_ext_in; | |
3697 | bfd_size_type external_ext_size = backend->debug_swap.external_ext_size; | |
3698 | unsigned long ext_count; | |
3699 | struct ecoff_link_hash_entry **sym_hash; | |
3700 | char *ext_ptr; | |
3701 | char *ext_end; | |
3702 | ||
3703 | ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
3704 | ||
3705 | sym_hash = ((struct ecoff_link_hash_entry **) | |
3706 | bfd_alloc (abfd, | |
3707 | ext_count * sizeof (struct bfd_link_hash_entry *))); | |
3708 | ecoff_data (abfd)->sym_hashes = sym_hash; | |
3709 | ||
3710 | ext_ptr = (char *) external_ext; | |
3711 | ext_end = ext_ptr + ext_count * external_ext_size; | |
3712 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++) | |
3713 | { | |
3714 | EXTR esym; | |
3715 | boolean skip; | |
3716 | bfd_vma value; | |
3717 | asection *section; | |
3718 | const char *name; | |
3719 | struct ecoff_link_hash_entry *h; | |
3720 | ||
3721 | *sym_hash = NULL; | |
3722 | ||
3723 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3724 | ||
3725 | /* Skip debugging symbols. */ | |
3726 | skip = false; | |
3727 | switch (esym.asym.st) | |
3728 | { | |
3729 | case stGlobal: | |
3730 | case stStatic: | |
3731 | case stLabel: | |
3732 | case stProc: | |
3733 | case stStaticProc: | |
3734 | break; | |
3735 | default: | |
3736 | skip = true; | |
3737 | break; | |
3738 | } | |
3739 | ||
3740 | if (skip) | |
3741 | continue; | |
3742 | ||
3743 | /* Get the information for this symbol. */ | |
3744 | value = esym.asym.value; | |
3745 | switch (esym.asym.sc) | |
3746 | { | |
3747 | default: | |
3748 | case scNil: | |
3749 | case scRegister: | |
3750 | case scCdbLocal: | |
3751 | case scBits: | |
3752 | case scCdbSystem: | |
3753 | case scRegImage: | |
3754 | case scInfo: | |
3755 | case scUserStruct: | |
3756 | case scVar: | |
3757 | case scVarRegister: | |
3758 | case scVariant: | |
3759 | case scBasedVar: | |
3760 | case scXData: | |
3761 | case scPData: | |
3762 | section = NULL; | |
3763 | break; | |
3764 | case scText: | |
3765 | section = bfd_make_section_old_way (abfd, ".text"); | |
3766 | value -= section->vma; | |
3767 | break; | |
3768 | case scData: | |
3769 | section = bfd_make_section_old_way (abfd, ".data"); | |
3770 | value -= section->vma; | |
3771 | break; | |
3772 | case scBss: | |
3773 | section = bfd_make_section_old_way (abfd, ".bss"); | |
3774 | value -= section->vma; | |
3775 | break; | |
3776 | case scAbs: | |
3777 | section = &bfd_abs_section; | |
3778 | break; | |
3779 | case scUndefined: | |
3780 | section = &bfd_und_section; | |
3781 | break; | |
3782 | case scSData: | |
3783 | section = bfd_make_section_old_way (abfd, ".sdata"); | |
3784 | value -= section->vma; | |
3785 | break; | |
3786 | case scSBss: | |
3787 | section = bfd_make_section_old_way (abfd, ".sbss"); | |
3788 | value -= section->vma; | |
3789 | break; | |
3790 | case scRData: | |
3791 | section = bfd_make_section_old_way (abfd, ".rdata"); | |
3792 | value -= section->vma; | |
3793 | break; | |
3794 | case scCommon: | |
3795 | if (value > ecoff_data (abfd)->gp_size) | |
3796 | { | |
3797 | section = &bfd_com_section; | |
3798 | break; | |
3799 | } | |
3800 | /* Fall through. */ | |
3801 | case scSCommon: | |
3802 | if (ecoff_scom_section.name == NULL) | |
3803 | { | |
3804 | /* Initialize the small common section. */ | |
3805 | ecoff_scom_section.name = SCOMMON; | |
3806 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
3807 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
3808 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
3809 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
3810 | ecoff_scom_symbol.name = SCOMMON; | |
3811 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
3812 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
3813 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
3814 | } | |
3815 | section = &ecoff_scom_section; | |
3816 | break; | |
3817 | case scSUndefined: | |
3818 | section = &bfd_und_section; | |
3819 | break; | |
3820 | case scInit: | |
3821 | section = bfd_make_section_old_way (abfd, ".init"); | |
3822 | value -= section->vma; | |
3823 | break; | |
3824 | case scFini: | |
3825 | section = bfd_make_section_old_way (abfd, ".fini"); | |
3826 | value -= section->vma; | |
3827 | break; | |
3828 | } | |
3829 | ||
3830 | if (section == (asection *) NULL) | |
3831 | continue; | |
3832 | ||
3833 | name = ssext + esym.asym.iss; | |
3834 | ||
3835 | if (! (_bfd_generic_link_add_one_symbol | |
3836 | (info, abfd, name, BSF_GLOBAL, section, value, | |
3837 | (const char *) NULL, true, true, backend->constructor_bitsize, | |
3838 | (struct bfd_link_hash_entry **) &h))) | |
3839 | return false; | |
3840 | ||
3841 | *sym_hash = h; | |
3842 | ||
3843 | /* If we are building an ECOFF hash table, save the external | |
3844 | symbol information. */ | |
3845 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) | |
3846 | { | |
3847 | if (h->abfd == (bfd *) NULL | |
3848 | || (section != &bfd_und_section | |
3849 | && (! bfd_is_com_section (section) | |
3850 | || h->root.type != bfd_link_hash_defined))) | |
3851 | { | |
3852 | h->abfd = abfd; | |
3853 | h->esym = esym; | |
3854 | } | |
3855 | } | |
3856 | } | |
3857 | ||
3858 | return true; | |
3859 | } | |
3860 | \f | |
3861 | /* ECOFF final link routines. */ | |
3862 | ||
3863 | static boolean ecoff_final_link_debug_accumulate | |
3f048f7f ILT |
3864 | PARAMS ((bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *, |
3865 | PTR handle)); | |
966e0a16 ILT |
3866 | static boolean ecoff_link_write_external |
3867 | PARAMS ((struct ecoff_link_hash_entry *, PTR)); | |
3868 | static boolean ecoff_indirect_link_order | |
3869 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
3870 | struct bfd_link_order *)); | |
3871 | ||
3872 | /* ECOFF final link routine. This looks through all the input BFDs | |
3873 | and gathers together all the debugging information, and then | |
3874 | processes all the link order information. This may cause it to | |
3875 | close and reopen some input BFDs; I'll see how bad this is. */ | |
3876 | ||
3877 | boolean | |
3878 | ecoff_bfd_final_link (abfd, info) | |
3879 | bfd *abfd; | |
3880 | struct bfd_link_info *info; | |
3881 | { | |
3882 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3883 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; | |
3884 | HDRR *symhdr; | |
3f048f7f | 3885 | PTR handle; |
966e0a16 ILT |
3886 | register bfd *input_bfd; |
3887 | asection *o; | |
3888 | struct bfd_link_order *p; | |
3889 | ||
3890 | /* We accumulate the debugging information counts in the symbolic | |
3891 | header. */ | |
3892 | symhdr = &debug->symbolic_header; | |
3893 | symhdr->magic = backend->debug_swap.sym_magic; | |
966e0a16 ILT |
3894 | symhdr->vstamp = 0; |
3895 | symhdr->ilineMax = 0; | |
3896 | symhdr->cbLine = 0; | |
3897 | symhdr->idnMax = 0; | |
3898 | symhdr->ipdMax = 0; | |
3899 | symhdr->isymMax = 0; | |
3900 | symhdr->ioptMax = 0; | |
3901 | symhdr->iauxMax = 0; | |
3902 | symhdr->issMax = 0; | |
3903 | symhdr->issExtMax = 0; | |
3904 | symhdr->ifdMax = 0; | |
3905 | symhdr->crfd = 0; | |
3906 | symhdr->iextMax = 0; | |
3907 | ||
3908 | /* We accumulate the debugging information itself in the debug_info | |
3909 | structure. */ | |
3f048f7f ILT |
3910 | debug->line = NULL; |
3911 | debug->external_dnr = NULL; | |
3912 | debug->external_pdr = NULL; | |
3913 | debug->external_sym = NULL; | |
3914 | debug->external_opt = NULL; | |
3915 | debug->external_aux = NULL; | |
3916 | debug->ss = NULL; | |
966e0a16 | 3917 | debug->ssext = debug->ssext_end = NULL; |
3f048f7f ILT |
3918 | debug->external_fdr = NULL; |
3919 | debug->external_rfd = NULL; | |
966e0a16 ILT |
3920 | debug->external_ext = debug->external_ext_end = NULL; |
3921 | ||
3f048f7f ILT |
3922 | handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info); |
3923 | if (handle == (PTR) NULL) | |
3924 | return false; | |
3925 | ||
966e0a16 ILT |
3926 | /* Accumulate the debugging symbols from each input BFD. */ |
3927 | for (input_bfd = info->input_bfds; | |
3928 | input_bfd != (bfd *) NULL; | |
3929 | input_bfd = input_bfd->link_next) | |
3930 | { | |
3931 | boolean ret; | |
3932 | ||
3933 | /* If we might be using the C based alloca function, dump memory | |
3934 | allocated by ecoff_final_link_debug_accumulate. */ | |
3935 | #ifndef __GNUC__ | |
3936 | #ifndef alloca | |
3937 | (void) alloca (0); | |
3938 | #endif | |
3939 | #endif | |
3940 | ||
3941 | if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour) | |
3f048f7f ILT |
3942 | { |
3943 | /* Abitrarily set the symbolic header vstamp to the vstamp | |
3944 | of the first object file in the link. */ | |
3945 | if (symhdr->vstamp == 0) | |
3946 | symhdr->vstamp | |
3947 | = ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp; | |
3948 | ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info, | |
3949 | handle); | |
3950 | } | |
966e0a16 | 3951 | else |
3f048f7f ILT |
3952 | ret = bfd_ecoff_debug_accumulate_other (handle, abfd, |
3953 | debug, &backend->debug_swap, | |
3954 | input_bfd, info); | |
966e0a16 ILT |
3955 | if (! ret) |
3956 | return false; | |
3957 | ||
3958 | /* Combine the register masks. */ | |
3959 | ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask; | |
3960 | ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask; | |
3961 | ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0]; | |
3962 | ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1]; | |
3963 | ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2]; | |
3964 | ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3]; | |
3965 | } | |
3966 | ||
3967 | /* Write out the external symbols. */ | |
3968 | ecoff_link_hash_traverse (ecoff_hash_table (info), | |
3969 | ecoff_link_write_external, | |
3970 | (PTR) abfd); | |
3971 | ||
3972 | if (info->relocateable) | |
3973 | { | |
3974 | /* We need to make a pass over the link_orders to count up the | |
3975 | number of relocations we will need to output, so that we know | |
3976 | how much space they will take up. */ | |
3977 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
3978 | { | |
3979 | o->reloc_count = 0; | |
3980 | for (p = o->link_order_head; | |
3981 | p != (struct bfd_link_order *) NULL; | |
3982 | p = p->next) | |
3983 | if (p->type == bfd_indirect_link_order) | |
3984 | o->reloc_count += p->u.indirect.section->reloc_count; | |
3985 | } | |
3f048f7f ILT |
3986 | } |
3987 | ||
3988 | /* Compute the reloc and symbol file positions. */ | |
3989 | ecoff_compute_reloc_file_positions (abfd); | |
3990 | ||
3991 | /* Write out the debugging information. */ | |
3992 | if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug, | |
3993 | &backend->debug_swap, info, | |
3994 | ecoff_data (abfd)->sym_filepos)) | |
3995 | return false; | |
966e0a16 | 3996 | |
3f048f7f | 3997 | bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info); |
966e0a16 | 3998 | |
3f048f7f ILT |
3999 | if (info->relocateable) |
4000 | { | |
966e0a16 ILT |
4001 | /* Now reset the reloc_count field of the sections in the output |
4002 | BFD to 0, so that we can use them to keep track of how many | |
4003 | relocs we have output thus far. */ | |
4004 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4005 | o->reloc_count = 0; | |
4006 | } | |
4007 | ||
4008 | /* Get a value for the GP register. */ | |
4009 | if (ecoff_data (abfd)->gp == 0) | |
4010 | { | |
4011 | struct bfd_link_hash_entry *h; | |
4012 | ||
4013 | h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true); | |
4014 | if (h != (struct bfd_link_hash_entry *) NULL | |
4015 | && h->type == bfd_link_hash_defined) | |
4016 | ecoff_data (abfd)->gp = (h->u.def.value | |
4017 | + h->u.def.section->output_section->vma | |
4018 | + h->u.def.section->output_offset); | |
4019 | else if (info->relocateable) | |
4020 | { | |
4021 | bfd_vma lo; | |
4022 | ||
4023 | /* Make up a value. */ | |
4024 | lo = (bfd_vma) -1; | |
4025 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4026 | { | |
4027 | if (o->vma < lo | |
4028 | && (strcmp (o->name, _SBSS) == 0 | |
4029 | || strcmp (o->name, _SDATA) == 0 | |
4030 | || strcmp (o->name, _LIT4) == 0 | |
4031 | || strcmp (o->name, _LIT8) == 0 | |
4032 | || strcmp (o->name, _LITA) == 0)) | |
4033 | lo = o->vma; | |
4034 | } | |
4035 | ecoff_data (abfd)->gp = lo + 0x8000; | |
4036 | } | |
4037 | else | |
4038 | { | |
4039 | /* If the relocate_section function needs to do a reloc | |
4040 | involving the GP value, it should make a reloc_dangerous | |
4041 | callback to warn that GP is not defined. */ | |
4042 | } | |
4043 | } | |
4044 | ||
4045 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4046 | { | |
4047 | /* Ignore any link_orders for the .reginfo section, which does | |
4048 | not really exist. */ | |
4049 | if (strcmp (o->name, REGINFO) == 0) | |
4050 | continue; | |
4051 | ||
4052 | for (p = o->link_order_head; | |
4053 | p != (struct bfd_link_order *) NULL; | |
4054 | p = p->next) | |
4055 | { | |
4056 | /* If we might be using the C based alloca function, we need | |
4057 | to dump the memory allocated by the function | |
4058 | ecoff_indirect_link_order. */ | |
4059 | #ifndef __GNUC__ | |
4060 | #ifndef alloca | |
4061 | (void) alloca (0); | |
4062 | #endif | |
4063 | #endif | |
4064 | if (p->type == bfd_indirect_link_order | |
4065 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
4066 | == bfd_target_ecoff_flavour)) | |
4067 | { | |
4068 | if (! ecoff_indirect_link_order (abfd, info, o, p)) | |
4069 | return false; | |
4070 | } | |
4071 | else | |
4072 | { | |
4073 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
4074 | return false; | |
4075 | } | |
4076 | } | |
4077 | } | |
4078 | ||
4079 | bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax; | |
4080 | ||
4081 | return true; | |
4082 | } | |
4083 | ||
4084 | /* Accumulate the debugging information for an input BFD into the | |
4085 | output BFD. This must read in the symbolic information of the | |
4086 | input BFD. */ | |
4087 | ||
4088 | static boolean | |
3f048f7f | 4089 | ecoff_final_link_debug_accumulate (output_bfd, input_bfd, info, handle) |
966e0a16 ILT |
4090 | bfd *output_bfd; |
4091 | bfd *input_bfd; | |
4092 | struct bfd_link_info *info; | |
3f048f7f | 4093 | PTR handle; |
966e0a16 ILT |
4094 | { |
4095 | struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info; | |
4096 | const struct ecoff_debug_swap * const swap = | |
4097 | &ecoff_backend (input_bfd)->debug_swap; | |
4098 | HDRR *symhdr = &debug->symbolic_header; | |
4099 | boolean ret; | |
4100 | ||
4101 | #define READ(ptr, offset, count, size, type) \ | |
4102 | if (symhdr->count == 0) \ | |
4103 | debug->ptr = NULL; \ | |
4104 | else \ | |
4105 | { \ | |
4106 | debug->ptr = (type) alloca (size * symhdr->count); \ | |
4107 | if ((bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) \ | |
4108 | != 0) \ | |
4109 | || (bfd_read (debug->ptr, size, symhdr->count, \ | |
4110 | input_bfd) != size * symhdr->count)) \ | |
4111 | return false; \ | |
4112 | } | |
4113 | ||
4114 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *); | |
4115 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR); | |
4116 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR); | |
4117 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR); | |
4118 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR); | |
4119 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), | |
4120 | union aux_ext *); | |
4121 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); | |
4122 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR); | |
4123 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR); | |
4124 | #undef READ | |
4125 | ||
4126 | /* We do not read the external strings or the external symbols. */ | |
4127 | ||
4128 | ret = (bfd_ecoff_debug_accumulate | |
3f048f7f | 4129 | (handle, output_bfd, &ecoff_data (output_bfd)->debug_info, |
966e0a16 | 4130 | &ecoff_backend (output_bfd)->debug_swap, |
3f048f7f | 4131 | input_bfd, debug, swap, info)); |
966e0a16 ILT |
4132 | |
4133 | /* Make sure we don't accidentally follow one of these pointers on | |
4134 | to the stack. */ | |
4135 | debug->line = NULL; | |
4136 | debug->external_dnr = NULL; | |
4137 | debug->external_pdr = NULL; | |
4138 | debug->external_sym = NULL; | |
4139 | debug->external_opt = NULL; | |
4140 | debug->external_aux = NULL; | |
4141 | debug->ss = NULL; | |
4142 | debug->external_fdr = NULL; | |
4143 | debug->external_rfd = NULL; | |
4144 | ||
4145 | return ret; | |
4146 | } | |
4147 | ||
4148 | /* Put out information for an external symbol. These come only from | |
4149 | the hash table. */ | |
4150 | ||
4151 | static boolean | |
4152 | ecoff_link_write_external (h, data) | |
4153 | struct ecoff_link_hash_entry *h; | |
4154 | PTR data; | |
4155 | { | |
4156 | bfd *output_bfd = (bfd *) data; | |
4157 | ||
4158 | /* FIXME: We should check if this symbol is being stripped. */ | |
4159 | ||
4160 | if (h->root.written) | |
4161 | return true; | |
4162 | ||
4163 | if (h->abfd == (bfd *) NULL) | |
4164 | { | |
4165 | h->esym.jmptbl = 0; | |
4166 | h->esym.cobol_main = 0; | |
4167 | h->esym.weakext = 0; | |
4168 | h->esym.reserved = 0; | |
4169 | h->esym.ifd = ifdNil; | |
4170 | h->esym.asym.value = 0; | |
4171 | /* FIXME: we can do better than this for st and sc. */ | |
4172 | h->esym.asym.st = stGlobal; | |
4173 | h->esym.asym.sc = scAbs; | |
4174 | h->esym.asym.reserved = 0; | |
4175 | h->esym.asym.index = indexNil; | |
4176 | } | |
3f048f7f | 4177 | else if (h->esym.ifd != -1) |
966e0a16 | 4178 | { |
3f048f7f ILT |
4179 | struct ecoff_debug_info *debug; |
4180 | ||
966e0a16 ILT |
4181 | /* Adjust the FDR index for the symbol by that used for the |
4182 | input BFD. */ | |
3f048f7f ILT |
4183 | debug = &ecoff_data (h->abfd)->debug_info; |
4184 | BFD_ASSERT (h->esym.ifd >= 0 | |
4185 | && h->esym.ifd < debug->symbolic_header.ifdMax); | |
4186 | h->esym.ifd = debug->ifdmap[h->esym.ifd]; | |
966e0a16 ILT |
4187 | } |
4188 | ||
4189 | switch (h->root.type) | |
4190 | { | |
4191 | default: | |
4192 | case bfd_link_hash_new: | |
4193 | abort (); | |
4194 | case bfd_link_hash_undefined: | |
4195 | case bfd_link_hash_weak: | |
4196 | if (h->esym.asym.st != scUndefined | |
4197 | && h->esym.asym.st != scSUndefined) | |
4198 | h->esym.asym.st = scUndefined; | |
4199 | break; | |
4200 | case bfd_link_hash_defined: | |
4201 | if (h->esym.asym.sc == scUndefined | |
4202 | || h->esym.asym.sc == scSUndefined) | |
4203 | h->esym.asym.sc = scAbs; | |
4204 | else if (h->esym.asym.sc == scCommon) | |
4205 | h->esym.asym.sc = scBss; | |
4206 | else if (h->esym.asym.sc == scSCommon) | |
4207 | h->esym.asym.sc = scSBss; | |
4208 | h->esym.asym.value = (h->root.u.def.value | |
4209 | + h->root.u.def.section->output_section->vma | |
4210 | + h->root.u.def.section->output_offset); | |
4211 | break; | |
4212 | case bfd_link_hash_common: | |
4213 | if (h->esym.asym.sc != scCommon | |
4214 | && h->esym.asym.sc != scSCommon) | |
4215 | h->esym.asym.sc = scCommon; | |
4216 | h->esym.asym.value = h->root.u.c.size; | |
4217 | break; | |
4218 | case bfd_link_hash_indirect: | |
4219 | case bfd_link_hash_warning: | |
4220 | /* FIXME: Ignore these for now. The circumstances under which | |
4221 | they should be written out are not clear to me. */ | |
4222 | return true; | |
4223 | } | |
4224 | ||
4225 | /* bfd_ecoff_debug_one_external uses iextMax to keep track of the | |
4226 | symbol number. */ | |
4227 | h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax; | |
4228 | h->root.written = true; | |
4229 | ||
4230 | return (bfd_ecoff_debug_one_external | |
4231 | (output_bfd, &ecoff_data (output_bfd)->debug_info, | |
4232 | &ecoff_backend (output_bfd)->debug_swap, h->root.root.string, | |
4233 | &h->esym)); | |
4234 | } | |
4235 | ||
4236 | /* Relocate and write an ECOFF section into an ECOFF output file. */ | |
4237 | ||
4238 | static boolean | |
4239 | ecoff_indirect_link_order (output_bfd, info, output_section, link_order) | |
4240 | bfd *output_bfd; | |
4241 | struct bfd_link_info *info; | |
4242 | asection *output_section; | |
4243 | struct bfd_link_order *link_order; | |
4244 | { | |
4245 | asection *input_section; | |
4246 | bfd *input_bfd; | |
4247 | bfd_size_type input_size; | |
4248 | bfd_byte *contents; | |
4249 | bfd_size_type external_reloc_size; | |
4250 | bfd_size_type external_relocs_size; | |
4251 | PTR external_relocs; | |
4252 | ||
4253 | BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0); | |
4254 | ||
4255 | if (link_order->size == 0) | |
4256 | return true; | |
4257 | ||
4258 | input_section = link_order->u.indirect.section; | |
4259 | input_bfd = input_section->owner; | |
4260 | ||
4261 | BFD_ASSERT (input_section->output_section == output_section); | |
4262 | BFD_ASSERT (input_section->output_offset == link_order->offset); | |
4263 | BFD_ASSERT (bfd_section_size (input_bfd, input_section) == link_order->size); | |
4264 | ||
4265 | /* Get the section contents. */ | |
4266 | input_size = bfd_section_size (input_bfd, input_section); | |
4267 | contents = (bfd_byte *) alloca (input_size); | |
4268 | if (! bfd_get_section_contents (input_bfd, input_section, (PTR) contents, | |
4269 | (file_ptr) 0, input_size)) | |
4270 | return false; | |
4271 | ||
4272 | /* Get the relocs. */ | |
4273 | external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size; | |
4274 | external_relocs_size = external_reloc_size * input_section->reloc_count; | |
4275 | external_relocs = (PTR) alloca (external_relocs_size); | |
4276 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 | |
4277 | || (bfd_read (external_relocs, 1, external_relocs_size, input_bfd) | |
4278 | != external_relocs_size)) | |
4279 | return false; | |
4280 | ||
4281 | /* Relocate the section contents. */ | |
4282 | if (! ((*ecoff_backend (input_bfd)->relocate_section) | |
4283 | (output_bfd, info, input_bfd, input_section, contents, | |
4284 | external_relocs))) | |
4285 | return false; | |
4286 | ||
4287 | /* Write out the relocated section. */ | |
4288 | if (! bfd_set_section_contents (output_bfd, | |
4289 | output_section, | |
4290 | (PTR) contents, | |
4291 | input_section->output_offset, | |
4292 | input_size)) | |
4293 | return false; | |
4294 | ||
4295 | /* If we are producing relocateable output, the relocs were | |
4296 | modified, and we write them out now. We use the reloc_count | |
4297 | field of output_section to keep track of the number of relocs we | |
4298 | have output so far. */ | |
4299 | if (info->relocateable) | |
4300 | { | |
4301 | if (bfd_seek (output_bfd, | |
4302 | (output_section->rel_filepos + | |
4303 | output_section->reloc_count * external_reloc_size), | |
4304 | SEEK_SET) != 0 | |
4305 | || (bfd_write (external_relocs, 1, external_relocs_size, output_bfd) | |
4306 | != external_relocs_size)) | |
4307 | return false; | |
4308 | output_section->reloc_count += input_section->reloc_count; | |
4309 | } | |
4310 | ||
4311 | return true; | |
4312 | } |