Commit | Line | Data |
---|---|---|
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)); |
9783e04a | 49 | static boolean ecoff_set_symbol_info PARAMS ((bfd *abfd, SYMR *ecoff_sym, |
dae31cf5 ILT |
50 | asymbol *asym, int ext, |
51 | asymbol **indirect_ptr_ptr)); | |
2ec2e6a9 ILT |
52 | static void ecoff_emit_aggregate PARAMS ((bfd *abfd, FDR *fdr, |
53 | char *string, | |
dae31cf5 | 54 | RNDXR *rndx, long isym, |
2ec2e6a9 ILT |
55 | const char *which)); |
56 | static char *ecoff_type_to_string PARAMS ((bfd *abfd, FDR *fdr, | |
57 | unsigned int indx)); | |
dae31cf5 ILT |
58 | static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section, |
59 | asymbol **symbols)); | |
dae31cf5 | 60 | static void ecoff_compute_section_file_positions PARAMS ((bfd *abfd)); |
966e0a16 | 61 | static bfd_size_type ecoff_compute_reloc_file_positions PARAMS ((bfd *abfd)); |
8d12f138 ILT |
62 | static boolean ecoff_get_extr PARAMS ((asymbol *, EXTR *)); |
63 | static void ecoff_set_index PARAMS ((asymbol *, bfd_size_type)); | |
dae31cf5 ILT |
64 | static unsigned int ecoff_armap_hash PARAMS ((CONST char *s, |
65 | unsigned int *rehash, | |
66 | unsigned int size, | |
67 | unsigned int hlog)); | |
68 | \f | |
dae31cf5 ILT |
69 | /* This stuff is somewhat copied from coffcode.h. */ |
70 | ||
71 | static asection bfd_debug_section = { "*DEBUG*" }; | |
72 | ||
48edba81 ILT |
73 | /* Create an ECOFF object. */ |
74 | ||
75 | boolean | |
76 | ecoff_mkobject (abfd) | |
77 | bfd *abfd; | |
78 | { | |
79 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
80 | bfd_zalloc (abfd, sizeof (ecoff_data_type))); | |
81 | if (abfd->tdata.ecoff_obj_data == NULL) | |
82 | { | |
d1ad85a6 | 83 | bfd_set_error (bfd_error_no_memory); |
48edba81 ILT |
84 | return false; |
85 | } | |
86 | ||
48edba81 ILT |
87 | return true; |
88 | } | |
89 | ||
a7853216 ILT |
90 | /* This is a hook called by coff_real_object_p to create any backend |
91 | specific information. */ | |
92 | ||
93 | PTR | |
94 | ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
95 | bfd *abfd; | |
96 | PTR filehdr; | |
97 | PTR aouthdr; | |
98 | { | |
99 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
100 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; | |
101 | ecoff_data_type *ecoff; | |
a7853216 ILT |
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 | ||
a7853216 ILT |
110 | if (internal_a != (struct internal_aouthdr *) NULL) |
111 | { | |
112 | int i; | |
113 | ||
114 | ecoff->text_start = internal_a->text_start; | |
115 | ecoff->text_end = internal_a->text_start + internal_a->tsize; | |
116 | ecoff->gp = internal_a->gp_value; | |
117 | ecoff->gprmask = internal_a->gprmask; | |
118 | for (i = 0; i < 4; i++) | |
119 | ecoff->cprmask[i] = internal_a->cprmask[i]; | |
120 | ecoff->fprmask = internal_a->fprmask; | |
121 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) | |
122 | abfd->flags |= D_PAGED; | |
123 | } | |
124 | ||
125 | /* It turns out that no special action is required by the MIPS or | |
126 | Alpha ECOFF backends. They have different information in the | |
127 | a.out header, but we just copy it all (e.g., gprmask, cprmask and | |
128 | fprmask) and let the swapping routines ensure that only relevant | |
129 | information is written out. */ | |
130 | ||
131 | return (PTR) ecoff; | |
132 | } | |
133 | ||
dae31cf5 ILT |
134 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ |
135 | ||
728472f1 | 136 | /*ARGSUSED*/ |
dae31cf5 ILT |
137 | asection * |
138 | ecoff_make_section_hook (abfd, name) | |
139 | bfd *abfd; | |
140 | char *name; | |
141 | { | |
142 | return (asection *) NULL; | |
143 | } | |
144 | ||
145 | /* Initialize a new section. */ | |
146 | ||
147 | boolean | |
148 | ecoff_new_section_hook (abfd, section) | |
149 | bfd *abfd; | |
150 | asection *section; | |
151 | { | |
3f048f7f ILT |
152 | /* For the .pdata section, which has a special meaning on the Alpha, |
153 | we set the alignment to 8. We correct this later in | |
154 | ecoff_compute_section_file_positions. We do this hackery because | |
155 | we need to know the exact unaligned size of the .pdata section in | |
156 | order to set the lnnoptr field correctly. */ | |
157 | if (strcmp (section->name, _PDATA) == 0) | |
158 | section->alignment_power = 3; | |
159 | else | |
160 | section->alignment_power = abfd->xvec->align_power_min; | |
dae31cf5 ILT |
161 | |
162 | if (strcmp (section->name, _TEXT) == 0) | |
163 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
164 | else if (strcmp (section->name, _DATA) == 0 | |
165 | || strcmp (section->name, _SDATA) == 0) | |
166 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
167 | else if (strcmp (section->name, _RDATA) == 0 | |
168 | || strcmp (section->name, _LIT8) == 0 | |
169 | || strcmp (section->name, _LIT4) == 0) | |
170 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
171 | else if (strcmp (section->name, _BSS) == 0 | |
172 | || strcmp (section->name, _SBSS) == 0) | |
173 | section->flags |= SEC_ALLOC; | |
f8ee1ebb ILT |
174 | else if (strcmp (section->name, _LIB) == 0) |
175 | { | |
176 | /* An Irix 4 shared libary. */ | |
c16313f0 | 177 | section->flags |= SEC_COFF_SHARED_LIBRARY; |
f8ee1ebb | 178 | } |
dae31cf5 ILT |
179 | |
180 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
181 | uncertain about .init on some systems and I don't know how shared | |
182 | libraries work. */ | |
183 | ||
184 | return true; | |
185 | } | |
186 | ||
a7853216 ILT |
187 | /* Determine the machine architecture and type. This is called from |
188 | the generic COFF routines. It is the inverse of ecoff_get_magic, | |
189 | below. This could be an ECOFF backend routine, with one version | |
190 | for each target, but there aren't all that many ECOFF targets. */ | |
dae31cf5 ILT |
191 | |
192 | boolean | |
193 | ecoff_set_arch_mach_hook (abfd, filehdr) | |
194 | bfd *abfd; | |
195 | PTR filehdr; | |
196 | { | |
197 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
198 | enum bfd_architecture arch; | |
a7853216 | 199 | unsigned long mach; |
dae31cf5 ILT |
200 | |
201 | switch (internal_f->f_magic) | |
202 | { | |
203 | case MIPS_MAGIC_1: | |
204 | case MIPS_MAGIC_LITTLE: | |
205 | case MIPS_MAGIC_BIG: | |
206 | arch = bfd_arch_mips; | |
a7853216 ILT |
207 | mach = 3000; |
208 | break; | |
209 | ||
210 | case MIPS_MAGIC_LITTLE2: | |
211 | case MIPS_MAGIC_BIG2: | |
212 | /* MIPS ISA level 2: the r6000 */ | |
213 | arch = bfd_arch_mips; | |
214 | mach = 6000; | |
215 | break; | |
216 | ||
217 | case MIPS_MAGIC_LITTLE3: | |
218 | case MIPS_MAGIC_BIG3: | |
219 | /* MIPS ISA level 3: the r4000 */ | |
220 | arch = bfd_arch_mips; | |
221 | mach = 4000; | |
dae31cf5 ILT |
222 | break; |
223 | ||
224 | case ALPHA_MAGIC: | |
225 | arch = bfd_arch_alpha; | |
a7853216 | 226 | mach = 0; |
dae31cf5 ILT |
227 | break; |
228 | ||
229 | default: | |
230 | arch = bfd_arch_obscure; | |
a7853216 | 231 | mach = 0; |
dae31cf5 ILT |
232 | break; |
233 | } | |
234 | ||
a7853216 ILT |
235 | return bfd_default_set_arch_mach (abfd, arch, mach); |
236 | } | |
dae31cf5 | 237 | |
a7853216 ILT |
238 | /* Get the magic number to use based on the architecture and machine. |
239 | This is the inverse of ecoff_set_arch_mach_hook, above. */ | |
240 | ||
241 | static int | |
242 | ecoff_get_magic (abfd) | |
243 | bfd *abfd; | |
244 | { | |
245 | int big, little; | |
246 | ||
247 | switch (bfd_get_arch (abfd)) | |
248 | { | |
249 | case bfd_arch_mips: | |
250 | switch (bfd_get_mach (abfd)) | |
251 | { | |
252 | default: | |
253 | case 0: | |
254 | case 3000: | |
255 | big = MIPS_MAGIC_BIG; | |
256 | little = MIPS_MAGIC_LITTLE; | |
257 | break; | |
258 | ||
259 | case 6000: | |
260 | big = MIPS_MAGIC_BIG2; | |
261 | little = MIPS_MAGIC_LITTLE2; | |
262 | break; | |
263 | ||
264 | case 4000: | |
265 | big = MIPS_MAGIC_BIG3; | |
266 | little = MIPS_MAGIC_LITTLE3; | |
267 | break; | |
268 | } | |
269 | ||
270 | return abfd->xvec->byteorder_big_p ? big : little; | |
271 | ||
272 | case bfd_arch_alpha: | |
273 | return ALPHA_MAGIC; | |
274 | ||
275 | default: | |
276 | abort (); | |
277 | return 0; | |
278 | } | |
dae31cf5 ILT |
279 | } |
280 | ||
281 | /* Get the section s_flags to use for a section. */ | |
282 | ||
283 | long | |
284 | ecoff_sec_to_styp_flags (name, flags) | |
285 | CONST char *name; | |
286 | flagword flags; | |
287 | { | |
288 | long styp; | |
289 | ||
290 | styp = 0; | |
291 | ||
292 | if (strcmp (name, _TEXT) == 0) | |
293 | styp = STYP_TEXT; | |
294 | else if (strcmp (name, _DATA) == 0) | |
295 | styp = STYP_DATA; | |
296 | else if (strcmp (name, _SDATA) == 0) | |
297 | styp = STYP_SDATA; | |
298 | else if (strcmp (name, _RDATA) == 0) | |
299 | styp = STYP_RDATA; | |
c9668c58 ILT |
300 | else if (strcmp (name, _LITA) == 0) |
301 | styp = STYP_LITA; | |
dae31cf5 ILT |
302 | else if (strcmp (name, _LIT8) == 0) |
303 | styp = STYP_LIT8; | |
304 | else if (strcmp (name, _LIT4) == 0) | |
305 | styp = STYP_LIT4; | |
306 | else if (strcmp (name, _BSS) == 0) | |
307 | styp = STYP_BSS; | |
308 | else if (strcmp (name, _SBSS) == 0) | |
309 | styp = STYP_SBSS; | |
310 | else if (strcmp (name, _INIT) == 0) | |
311 | styp = STYP_ECOFF_INIT; | |
a7853216 ILT |
312 | else if (strcmp (name, _FINI) == 0) |
313 | styp = STYP_ECOFF_FINI; | |
966e0a16 ILT |
314 | else if (strcmp (name, _PDATA) == 0) |
315 | styp = STYP_PDATA; | |
316 | else if (strcmp (name, _XDATA) == 0) | |
317 | styp = STYP_XDATA; | |
f8ee1ebb ILT |
318 | else if (strcmp (name, _LIB) == 0) |
319 | styp = STYP_ECOFF_LIB; | |
dae31cf5 ILT |
320 | else if (flags & SEC_CODE) |
321 | styp = STYP_TEXT; | |
322 | else if (flags & SEC_DATA) | |
323 | styp = STYP_DATA; | |
324 | else if (flags & SEC_READONLY) | |
325 | styp = STYP_RDATA; | |
326 | else if (flags & SEC_LOAD) | |
327 | styp = STYP_REG; | |
328 | else | |
329 | styp = STYP_BSS; | |
330 | ||
331 | if (flags & SEC_NEVER_LOAD) | |
332 | styp |= STYP_NOLOAD; | |
333 | ||
334 | return styp; | |
335 | } | |
336 | ||
337 | /* Get the BFD flags to use for a section. */ | |
338 | ||
728472f1 | 339 | /*ARGSUSED*/ |
dae31cf5 ILT |
340 | flagword |
341 | ecoff_styp_to_sec_flags (abfd, hdr) | |
342 | bfd *abfd; | |
343 | PTR hdr; | |
344 | { | |
345 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
346 | long styp_flags = internal_s->s_flags; | |
347 | flagword sec_flags=0; | |
348 | ||
349 | if (styp_flags & STYP_NOLOAD) | |
350 | sec_flags |= SEC_NEVER_LOAD; | |
351 | ||
352 | /* For 386 COFF, at least, an unloadable text or data section is | |
353 | actually a shared library section. */ | |
354 | if ((styp_flags & STYP_TEXT) | |
a7853216 ILT |
355 | || (styp_flags & STYP_ECOFF_INIT) |
356 | || (styp_flags & STYP_ECOFF_FINI)) | |
dae31cf5 ILT |
357 | { |
358 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 359 | sec_flags |= SEC_CODE | SEC_COFF_SHARED_LIBRARY; |
dae31cf5 ILT |
360 | else |
361 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
362 | } | |
363 | else if ((styp_flags & STYP_DATA) | |
364 | || (styp_flags & STYP_RDATA) | |
a3a33af3 ILT |
365 | || (styp_flags & STYP_SDATA) |
366 | || styp_flags == STYP_PDATA | |
367 | || styp_flags == STYP_XDATA) | |
dae31cf5 ILT |
368 | { |
369 | if (sec_flags & SEC_NEVER_LOAD) | |
c16313f0 | 370 | sec_flags |= SEC_DATA | SEC_COFF_SHARED_LIBRARY; |
dae31cf5 ILT |
371 | else |
372 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
a3a33af3 ILT |
373 | if ((styp_flags & STYP_RDATA) |
374 | || styp_flags == STYP_PDATA) | |
dae31cf5 ILT |
375 | sec_flags |= SEC_READONLY; |
376 | } | |
377 | else if ((styp_flags & STYP_BSS) | |
378 | || (styp_flags & STYP_SBSS)) | |
379 | { | |
380 | sec_flags |= SEC_ALLOC; | |
381 | } | |
a3a33af3 | 382 | else if ((styp_flags & STYP_INFO) || styp_flags == STYP_COMMENT) |
dae31cf5 ILT |
383 | { |
384 | sec_flags |= SEC_NEVER_LOAD; | |
385 | } | |
c9668c58 ILT |
386 | else if ((styp_flags & STYP_LITA) |
387 | || (styp_flags & STYP_LIT8) | |
dae31cf5 ILT |
388 | || (styp_flags & STYP_LIT4)) |
389 | { | |
390 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
391 | } | |
f8ee1ebb ILT |
392 | else if (styp_flags & STYP_ECOFF_LIB) |
393 | { | |
c16313f0 | 394 | sec_flags |= SEC_COFF_SHARED_LIBRARY; |
f8ee1ebb | 395 | } |
dae31cf5 ILT |
396 | else |
397 | { | |
398 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
399 | } | |
400 | ||
401 | return sec_flags; | |
402 | } | |
403 | \f | |
404 | /* Routines to swap auxiliary information in and out. I am assuming | |
405 | that the auxiliary information format is always going to be target | |
406 | independent. */ | |
407 | ||
408 | /* Swap in a type information record. | |
409 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
410 | info comes from the file header record (fh-fBigendian). */ | |
411 | ||
412 | void | |
413 | ecoff_swap_tir_in (bigend, ext_copy, intern) | |
414 | int bigend; | |
aac6b32f | 415 | const struct tir_ext *ext_copy; |
dae31cf5 ILT |
416 | TIR *intern; |
417 | { | |
418 | struct tir_ext ext[1]; | |
419 | ||
420 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
421 | ||
422 | /* now the fun stuff... */ | |
423 | if (bigend) { | |
424 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_BIG); | |
425 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_BIG); | |
426 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_BIG) | |
427 | >> TIR_BITS1_BT_SH_BIG; | |
428 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_BIG) | |
429 | >> TIR_BITS_TQ4_SH_BIG; | |
430 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_BIG) | |
431 | >> TIR_BITS_TQ5_SH_BIG; | |
432 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_BIG) | |
433 | >> TIR_BITS_TQ0_SH_BIG; | |
434 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_BIG) | |
435 | >> TIR_BITS_TQ1_SH_BIG; | |
436 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_BIG) | |
437 | >> TIR_BITS_TQ2_SH_BIG; | |
438 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_BIG) | |
439 | >> TIR_BITS_TQ3_SH_BIG; | |
440 | } else { | |
441 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_LITTLE); | |
442 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_LITTLE); | |
443 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_LITTLE) | |
444 | >> TIR_BITS1_BT_SH_LITTLE; | |
445 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_LITTLE) | |
446 | >> TIR_BITS_TQ4_SH_LITTLE; | |
447 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_LITTLE) | |
448 | >> TIR_BITS_TQ5_SH_LITTLE; | |
449 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_LITTLE) | |
450 | >> TIR_BITS_TQ0_SH_LITTLE; | |
451 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_LITTLE) | |
452 | >> TIR_BITS_TQ1_SH_LITTLE; | |
453 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_LITTLE) | |
454 | >> TIR_BITS_TQ2_SH_LITTLE; | |
455 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_LITTLE) | |
456 | >> TIR_BITS_TQ3_SH_LITTLE; | |
457 | } | |
458 | ||
459 | #ifdef TEST | |
460 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
461 | abort(); | |
462 | #endif | |
463 | } | |
464 | ||
465 | /* Swap out a type information record. | |
466 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
467 | info comes from the file header record (fh-fBigendian). */ | |
468 | ||
469 | void | |
470 | ecoff_swap_tir_out (bigend, intern_copy, ext) | |
471 | int bigend; | |
aac6b32f | 472 | const TIR *intern_copy; |
dae31cf5 ILT |
473 | struct tir_ext *ext; |
474 | { | |
475 | TIR intern[1]; | |
476 | ||
477 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
478 | ||
479 | /* now the fun stuff... */ | |
480 | if (bigend) { | |
481 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_BIG : 0) | |
482 | | (intern->continued ? TIR_BITS1_CONTINUED_BIG : 0) | |
483 | | ((intern->bt << TIR_BITS1_BT_SH_BIG) | |
484 | & TIR_BITS1_BT_BIG)); | |
485 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_BIG) | |
486 | & TIR_BITS_TQ4_BIG) | |
487 | | ((intern->tq5 << TIR_BITS_TQ5_SH_BIG) | |
488 | & TIR_BITS_TQ5_BIG)); | |
489 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_BIG) | |
490 | & TIR_BITS_TQ0_BIG) | |
491 | | ((intern->tq1 << TIR_BITS_TQ1_SH_BIG) | |
492 | & TIR_BITS_TQ1_BIG)); | |
493 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_BIG) | |
494 | & TIR_BITS_TQ2_BIG) | |
495 | | ((intern->tq3 << TIR_BITS_TQ3_SH_BIG) | |
496 | & TIR_BITS_TQ3_BIG)); | |
497 | } else { | |
498 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_LITTLE : 0) | |
499 | | (intern->continued ? TIR_BITS1_CONTINUED_LITTLE : 0) | |
500 | | ((intern->bt << TIR_BITS1_BT_SH_LITTLE) | |
501 | & TIR_BITS1_BT_LITTLE)); | |
502 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_LITTLE) | |
503 | & TIR_BITS_TQ4_LITTLE) | |
504 | | ((intern->tq5 << TIR_BITS_TQ5_SH_LITTLE) | |
505 | & TIR_BITS_TQ5_LITTLE)); | |
506 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_LITTLE) | |
507 | & TIR_BITS_TQ0_LITTLE) | |
508 | | ((intern->tq1 << TIR_BITS_TQ1_SH_LITTLE) | |
509 | & TIR_BITS_TQ1_LITTLE)); | |
510 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_LITTLE) | |
511 | & TIR_BITS_TQ2_LITTLE) | |
512 | | ((intern->tq3 << TIR_BITS_TQ3_SH_LITTLE) | |
513 | & TIR_BITS_TQ3_LITTLE)); | |
514 | } | |
515 | ||
516 | #ifdef TEST | |
517 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
518 | abort(); | |
519 | #endif | |
520 | } | |
521 | ||
522 | /* Swap in a relative symbol record. BIGEND says whether it is in | |
523 | big-endian or little-endian format.*/ | |
524 | ||
525 | void | |
526 | ecoff_swap_rndx_in (bigend, ext_copy, intern) | |
527 | int bigend; | |
aac6b32f | 528 | const struct rndx_ext *ext_copy; |
dae31cf5 ILT |
529 | RNDXR *intern; |
530 | { | |
531 | struct rndx_ext ext[1]; | |
532 | ||
533 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
534 | ||
535 | /* now the fun stuff... */ | |
536 | if (bigend) { | |
537 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_BIG) | |
538 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_BIG) | |
539 | >> RNDX_BITS1_RFD_SH_BIG); | |
540 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_BIG) | |
541 | << RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
542 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_BIG) | |
543 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_BIG); | |
544 | } else { | |
545 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_LITTLE) | |
546 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_LITTLE) | |
547 | << RNDX_BITS1_RFD_SH_LEFT_LITTLE); | |
548 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_LITTLE) | |
549 | >> RNDX_BITS1_INDEX_SH_LITTLE) | |
550 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_LITTLE) | |
68241b2b ILT |
551 | | ((unsigned int) ext->r_bits[3] |
552 | << RNDX_BITS3_INDEX_SH_LEFT_LITTLE); | |
dae31cf5 ILT |
553 | } |
554 | ||
555 | #ifdef TEST | |
556 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
557 | abort(); | |
558 | #endif | |
559 | } | |
560 | ||
561 | /* Swap out a relative symbol record. BIGEND says whether it is in | |
562 | big-endian or little-endian format.*/ | |
563 | ||
564 | void | |
565 | ecoff_swap_rndx_out (bigend, intern_copy, ext) | |
566 | int bigend; | |
aac6b32f | 567 | const RNDXR *intern_copy; |
dae31cf5 ILT |
568 | struct rndx_ext *ext; |
569 | { | |
570 | RNDXR intern[1]; | |
571 | ||
572 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
573 | ||
574 | /* now the fun stuff... */ | |
575 | if (bigend) { | |
576 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_BIG; | |
577 | ext->r_bits[1] = (((intern->rfd << RNDX_BITS1_RFD_SH_BIG) | |
578 | & RNDX_BITS1_RFD_BIG) | |
579 | | ((intern->index >> RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
580 | & RNDX_BITS1_INDEX_BIG)); | |
581 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_BIG; | |
582 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_BIG; | |
583 | } else { | |
584 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_LITTLE; | |
585 | ext->r_bits[1] = (((intern->rfd >> RNDX_BITS1_RFD_SH_LEFT_LITTLE) | |
586 | & RNDX_BITS1_RFD_LITTLE) | |
587 | | ((intern->index << RNDX_BITS1_INDEX_SH_LITTLE) | |
588 | & RNDX_BITS1_INDEX_LITTLE)); | |
589 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_LITTLE; | |
590 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_LITTLE; | |
591 | } | |
592 | ||
593 | #ifdef TEST | |
594 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
595 | abort(); | |
596 | #endif | |
597 | } | |
598 | \f | |
966e0a16 | 599 | /* Read in the symbolic header for an ECOFF object file. */ |
dae31cf5 | 600 | |
966e0a16 ILT |
601 | static boolean |
602 | ecoff_slurp_symbolic_header (abfd) | |
dae31cf5 ILT |
603 | bfd *abfd; |
604 | { | |
605 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
606 | bfd_size_type external_hdr_size; | |
80425e6c | 607 | PTR raw = NULL; |
966e0a16 | 608 | HDRR *internal_symhdr; |
dae31cf5 | 609 | |
966e0a16 ILT |
610 | /* See if we've already read it in. */ |
611 | if (ecoff_data (abfd)->debug_info.symbolic_header.magic == | |
612 | backend->debug_swap.sym_magic) | |
dae31cf5 | 613 | return true; |
966e0a16 ILT |
614 | |
615 | /* See whether there is a symbolic header. */ | |
dae31cf5 ILT |
616 | if (ecoff_data (abfd)->sym_filepos == 0) |
617 | { | |
618 | bfd_get_symcount (abfd) = 0; | |
619 | return true; | |
620 | } | |
621 | ||
622 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
623 | as read from the file header, but on ECOFF this is always the | |
624 | size of the symbolic information header. It would be cleaner to | |
625 | handle this when we first read the file in coffgen.c. */ | |
c9668c58 | 626 | external_hdr_size = backend->debug_swap.external_hdr_size; |
dae31cf5 ILT |
627 | if (bfd_get_symcount (abfd) != external_hdr_size) |
628 | { | |
d1ad85a6 | 629 | bfd_set_error (bfd_error_bad_value); |
dae31cf5 ILT |
630 | return false; |
631 | } | |
632 | ||
633 | /* Read the symbolic information header. */ | |
80425e6c JK |
634 | raw = (PTR) malloc ((size_t) external_hdr_size); |
635 | if (raw == NULL) | |
636 | { | |
637 | bfd_set_error (bfd_error_no_memory); | |
638 | goto error_return; | |
639 | } | |
640 | ||
dae31cf5 ILT |
641 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 |
642 | || (bfd_read (raw, external_hdr_size, 1, abfd) | |
643 | != external_hdr_size)) | |
25057836 | 644 | goto error_return; |
c9668c58 ILT |
645 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
646 | (*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr); | |
dae31cf5 | 647 | |
c9668c58 | 648 | if (internal_symhdr->magic != backend->debug_swap.sym_magic) |
dae31cf5 | 649 | { |
d1ad85a6 | 650 | bfd_set_error (bfd_error_bad_value); |
80425e6c | 651 | goto error_return; |
dae31cf5 ILT |
652 | } |
653 | ||
654 | /* Now we can get the correct number of symbols. */ | |
655 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
656 | + internal_symhdr->iextMax); | |
657 | ||
80425e6c JK |
658 | if (raw != NULL) |
659 | free (raw); | |
966e0a16 | 660 | return true; |
80425e6c JK |
661 | error_return: |
662 | if (raw != NULL) | |
663 | free (raw); | |
664 | return false; | |
966e0a16 ILT |
665 | } |
666 | ||
667 | /* Read in and swap the important symbolic information for an ECOFF | |
aac6b32f ILT |
668 | object file. This is called by gdb via the read_debug_info entry |
669 | point in the backend structure. */ | |
966e0a16 | 670 | |
aac6b32f | 671 | /*ARGSUSED*/ |
966e0a16 | 672 | boolean |
aac6b32f | 673 | ecoff_slurp_symbolic_info (abfd, ignore, debug) |
966e0a16 | 674 | bfd *abfd; |
aac6b32f ILT |
675 | asection *ignore; |
676 | struct ecoff_debug_info *debug; | |
966e0a16 ILT |
677 | { |
678 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
679 | HDRR *internal_symhdr; | |
680 | bfd_size_type raw_base; | |
681 | bfd_size_type raw_size; | |
682 | PTR raw; | |
683 | bfd_size_type external_fdr_size; | |
684 | char *fraw_src; | |
685 | char *fraw_end; | |
686 | struct fdr *fdr_ptr; | |
687 | bfd_size_type raw_end; | |
688 | bfd_size_type cb_end; | |
689 | ||
aac6b32f ILT |
690 | BFD_ASSERT (debug == &ecoff_data (abfd)->debug_info); |
691 | ||
966e0a16 ILT |
692 | /* Check whether we've already gotten it, and whether there's any to |
693 | get. */ | |
694 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
695 | return true; | |
696 | if (ecoff_data (abfd)->sym_filepos == 0) | |
697 | { | |
698 | bfd_get_symcount (abfd) = 0; | |
699 | return true; | |
700 | } | |
701 | ||
702 | if (! ecoff_slurp_symbolic_header (abfd)) | |
703 | return false; | |
704 | ||
aac6b32f | 705 | internal_symhdr = &debug->symbolic_header; |
966e0a16 | 706 | |
dae31cf5 | 707 | /* Read all the symbolic information at once. */ |
966e0a16 ILT |
708 | raw_base = (ecoff_data (abfd)->sym_filepos |
709 | + backend->debug_swap.external_hdr_size); | |
dae31cf5 | 710 | |
a7853216 ILT |
711 | /* Alpha ecoff makes the determination of raw_size difficult. It has |
712 | an undocumented debug data section between the symhdr and the first | |
713 | documented section. And the ordering of the sections varies between | |
714 | statically and dynamically linked executables. | |
715 | If bfd supports SEEK_END someday, this code could be simplified. */ | |
716 | ||
717 | raw_end = 0; | |
718 | ||
719 | #define UPDATE_RAW_END(start, count, size) \ | |
720 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ | |
721 | if (cb_end > raw_end) \ | |
722 | raw_end = cb_end | |
723 | ||
724 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); | |
c9668c58 ILT |
725 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size); |
726 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size); | |
727 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size); | |
728 | UPDATE_RAW_END (cbOptOffset, ioptMax, backend->debug_swap.external_opt_size); | |
a7853216 ILT |
729 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); |
730 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); | |
731 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); | |
c9668c58 ILT |
732 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size); |
733 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size); | |
734 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size); | |
a7853216 ILT |
735 | |
736 | #undef UPDATE_RAW_END | |
737 | ||
738 | raw_size = raw_end - raw_base; | |
dae31cf5 ILT |
739 | if (raw_size == 0) |
740 | { | |
741 | ecoff_data (abfd)->sym_filepos = 0; | |
742 | return true; | |
743 | } | |
744 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
745 | if (raw == NULL) | |
746 | { | |
d1ad85a6 | 747 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
748 | return false; |
749 | } | |
966e0a16 ILT |
750 | if (bfd_seek (abfd, |
751 | (ecoff_data (abfd)->sym_filepos | |
752 | + backend->debug_swap.external_hdr_size), | |
753 | SEEK_SET) != 0 | |
754 | || bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
dae31cf5 | 755 | { |
dae31cf5 ILT |
756 | bfd_release (abfd, raw); |
757 | return false; | |
758 | } | |
759 | ||
dae31cf5 ILT |
760 | ecoff_data (abfd)->raw_syments = raw; |
761 | ||
762 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
763 | #define FIX(off1, off2, type) \ | |
764 | if (internal_symhdr->off1 == 0) \ | |
aac6b32f | 765 | debug->off2 = (type) NULL; \ |
dae31cf5 | 766 | else \ |
aac6b32f ILT |
767 | debug->off2 = (type) ((char *) raw \ |
768 | + internal_symhdr->off1 \ | |
769 | - raw_base) | |
dae31cf5 ILT |
770 | FIX (cbLineOffset, line, unsigned char *); |
771 | FIX (cbDnOffset, external_dnr, PTR); | |
772 | FIX (cbPdOffset, external_pdr, PTR); | |
773 | FIX (cbSymOffset, external_sym, PTR); | |
774 | FIX (cbOptOffset, external_opt, PTR); | |
775 | FIX (cbAuxOffset, external_aux, union aux_ext *); | |
776 | FIX (cbSsOffset, ss, char *); | |
777 | FIX (cbSsExtOffset, ssext, char *); | |
778 | FIX (cbFdOffset, external_fdr, PTR); | |
779 | FIX (cbRfdOffset, external_rfd, PTR); | |
780 | FIX (cbExtOffset, external_ext, PTR); | |
781 | #undef FIX | |
782 | ||
783 | /* I don't want to always swap all the data, because it will just | |
784 | waste time and most programs will never look at it. The only | |
785 | time the linker needs most of the debugging information swapped | |
786 | is when linking big-endian and little-endian MIPS object files | |
787 | together, which is not a common occurrence. | |
788 | ||
789 | We need to look at the fdr to deal with a lot of information in | |
790 | the symbols, so we swap them here. */ | |
aac6b32f ILT |
791 | debug->fdr = (struct fdr *) bfd_alloc (abfd, |
792 | (internal_symhdr->ifdMax * | |
793 | sizeof (struct fdr))); | |
794 | if (debug->fdr == NULL) | |
dae31cf5 | 795 | { |
d1ad85a6 | 796 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
797 | return false; |
798 | } | |
c9668c58 | 799 | external_fdr_size = backend->debug_swap.external_fdr_size; |
aac6b32f ILT |
800 | fdr_ptr = debug->fdr; |
801 | fraw_src = (char *) debug->external_fdr; | |
dae31cf5 ILT |
802 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; |
803 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
c9668c58 | 804 | (*backend->debug_swap.swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); |
dae31cf5 ILT |
805 | |
806 | return true; | |
807 | } | |
808 | \f | |
809 | /* ECOFF symbol table routines. The ECOFF symbol table is described | |
810 | in gcc/mips-tfile.c. */ | |
811 | ||
812 | /* ECOFF uses two common sections. One is the usual one, and the | |
813 | other is for small objects. All the small objects are kept | |
814 | together, and then referenced via the gp pointer, which yields | |
815 | faster assembler code. This is what we use for the small common | |
816 | section. */ | |
817 | static asection ecoff_scom_section; | |
818 | static asymbol ecoff_scom_symbol; | |
819 | static asymbol *ecoff_scom_symbol_ptr; | |
820 | ||
821 | /* Create an empty symbol. */ | |
822 | ||
823 | asymbol * | |
824 | ecoff_make_empty_symbol (abfd) | |
825 | bfd *abfd; | |
826 | { | |
827 | ecoff_symbol_type *new; | |
828 | ||
829 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
830 | if (new == (ecoff_symbol_type *) NULL) | |
831 | { | |
d1ad85a6 | 832 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
833 | return (asymbol *) NULL; |
834 | } | |
68241b2b | 835 | memset ((PTR) new, 0, sizeof *new); |
dae31cf5 ILT |
836 | new->symbol.section = (asection *) NULL; |
837 | new->fdr = (FDR *) NULL; | |
838 | new->local = false; | |
839 | new->native = NULL; | |
840 | new->symbol.the_bfd = abfd; | |
841 | return &new->symbol; | |
842 | } | |
843 | ||
844 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
845 | ||
9783e04a | 846 | static boolean |
dae31cf5 ILT |
847 | ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, indirect_ptr_ptr) |
848 | bfd *abfd; | |
849 | SYMR *ecoff_sym; | |
850 | asymbol *asym; | |
851 | int ext; | |
852 | asymbol **indirect_ptr_ptr; | |
853 | { | |
854 | asym->the_bfd = abfd; | |
855 | asym->value = ecoff_sym->value; | |
856 | asym->section = &bfd_debug_section; | |
857 | asym->udata = NULL; | |
858 | ||
859 | /* An indirect symbol requires two consecutive stabs symbols. */ | |
860 | if (*indirect_ptr_ptr != (asymbol *) NULL) | |
861 | { | |
862 | BFD_ASSERT (ECOFF_IS_STAB (ecoff_sym)); | |
863 | ||
864 | /* @@ Stuffing pointers into integers is a no-no. | |
865 | We can usually get away with it if the integer is | |
866 | large enough though. */ | |
867 | if (sizeof (asym) > sizeof (bfd_vma)) | |
868 | abort (); | |
869 | (*indirect_ptr_ptr)->value = (bfd_vma) asym; | |
870 | ||
871 | asym->flags = BSF_DEBUGGING; | |
872 | asym->section = &bfd_und_section; | |
873 | *indirect_ptr_ptr = NULL; | |
9783e04a | 874 | return true; |
dae31cf5 ILT |
875 | } |
876 | ||
877 | if (ECOFF_IS_STAB (ecoff_sym) | |
878 | && (ECOFF_UNMARK_STAB (ecoff_sym->index) | N_EXT) == (N_INDR | N_EXT)) | |
879 | { | |
880 | asym->flags = BSF_DEBUGGING | BSF_INDIRECT; | |
881 | asym->section = &bfd_ind_section; | |
882 | /* Pass this symbol on to the next call to this function. */ | |
883 | *indirect_ptr_ptr = asym; | |
9783e04a | 884 | return true; |
dae31cf5 ILT |
885 | } |
886 | ||
887 | /* Most symbol types are just for debugging. */ | |
888 | switch (ecoff_sym->st) | |
889 | { | |
890 | case stGlobal: | |
891 | case stStatic: | |
892 | case stLabel: | |
893 | case stProc: | |
894 | case stStaticProc: | |
895 | break; | |
896 | case stNil: | |
897 | if (ECOFF_IS_STAB (ecoff_sym)) | |
898 | { | |
899 | asym->flags = BSF_DEBUGGING; | |
9783e04a | 900 | return true; |
dae31cf5 ILT |
901 | } |
902 | break; | |
903 | default: | |
904 | asym->flags = BSF_DEBUGGING; | |
9783e04a | 905 | return true; |
dae31cf5 ILT |
906 | } |
907 | ||
908 | if (ext) | |
909 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
910 | else | |
911 | asym->flags = BSF_LOCAL; | |
912 | switch (ecoff_sym->sc) | |
913 | { | |
914 | case scNil: | |
915 | /* Used for compiler generated labels. Leave them in the | |
916 | debugging section, and mark them as local. If BSF_DEBUGGING | |
917 | is set, then nm does not display them for some reason. If no | |
918 | flags are set then the linker whines about them. */ | |
919 | asym->flags = BSF_LOCAL; | |
920 | break; | |
921 | case scText: | |
922 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
923 | asym->value -= asym->section->vma; | |
924 | break; | |
925 | case scData: | |
926 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
927 | asym->value -= asym->section->vma; | |
928 | break; | |
929 | case scBss: | |
70bec8b8 ILT |
930 | asym->section = bfd_make_section_old_way (abfd, ".bss"); |
931 | asym->value -= asym->section->vma; | |
dae31cf5 ILT |
932 | break; |
933 | case scRegister: | |
934 | asym->flags = BSF_DEBUGGING; | |
935 | break; | |
936 | case scAbs: | |
937 | asym->section = &bfd_abs_section; | |
938 | break; | |
939 | case scUndefined: | |
940 | asym->section = &bfd_und_section; | |
941 | asym->flags = 0; | |
942 | asym->value = 0; | |
943 | break; | |
944 | case scCdbLocal: | |
945 | case scBits: | |
946 | case scCdbSystem: | |
947 | case scRegImage: | |
948 | case scInfo: | |
949 | case scUserStruct: | |
950 | asym->flags = BSF_DEBUGGING; | |
951 | break; | |
952 | case scSData: | |
953 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
954 | asym->value -= asym->section->vma; | |
955 | break; | |
956 | case scSBss: | |
957 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); | |
70bec8b8 | 958 | asym->value -= asym->section->vma; |
dae31cf5 ILT |
959 | break; |
960 | case scRData: | |
961 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
962 | asym->value -= asym->section->vma; | |
963 | break; | |
964 | case scVar: | |
965 | asym->flags = BSF_DEBUGGING; | |
966 | break; | |
967 | case scCommon: | |
968 | if (asym->value > ecoff_data (abfd)->gp_size) | |
969 | { | |
970 | asym->section = &bfd_com_section; | |
971 | asym->flags = 0; | |
972 | break; | |
973 | } | |
974 | /* Fall through. */ | |
975 | case scSCommon: | |
976 | if (ecoff_scom_section.name == NULL) | |
977 | { | |
978 | /* Initialize the small common section. */ | |
979 | ecoff_scom_section.name = SCOMMON; | |
980 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
981 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
982 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
983 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
984 | ecoff_scom_symbol.name = SCOMMON; | |
985 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
986 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
987 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
988 | } | |
989 | asym->section = &ecoff_scom_section; | |
990 | asym->flags = 0; | |
991 | break; | |
992 | case scVarRegister: | |
993 | case scVariant: | |
994 | asym->flags = BSF_DEBUGGING; | |
995 | break; | |
996 | case scSUndefined: | |
997 | asym->section = &bfd_und_section; | |
998 | asym->flags = 0; | |
999 | asym->value = 0; | |
1000 | break; | |
1001 | case scInit: | |
1002 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
1003 | asym->value -= asym->section->vma; | |
1004 | break; | |
1005 | case scBasedVar: | |
1006 | case scXData: | |
1007 | case scPData: | |
1008 | asym->flags = BSF_DEBUGGING; | |
1009 | break; | |
1010 | case scFini: | |
1011 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
1012 | asym->value -= asym->section->vma; | |
1013 | break; | |
1014 | default: | |
1015 | break; | |
1016 | } | |
1017 | ||
1018 | /* Look for special constructors symbols and make relocation entries | |
1019 | in a special construction section. These are produced by the | |
1020 | -fgnu-linker argument to g++. */ | |
1021 | if (ECOFF_IS_STAB (ecoff_sym)) | |
1022 | { | |
1023 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) | |
1024 | { | |
1025 | default: | |
1026 | break; | |
1027 | ||
1028 | case N_SETA: | |
1029 | case N_SETT: | |
1030 | case N_SETD: | |
1031 | case N_SETB: | |
1032 | { | |
1033 | const char *name; | |
1034 | asection *section; | |
1035 | arelent_chain *reloc_chain; | |
1036 | unsigned int bitsize; | |
dae31cf5 ILT |
1037 | |
1038 | /* Get a section with the same name as the symbol (usually | |
1039 | __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the | |
1040 | name ___CTOR_LIST (three underscores). We need | |
1041 | __CTOR_LIST (two underscores), since ECOFF doesn't use | |
1042 | a leading underscore. This should be handled by gcc, | |
1043 | but instead we do it here. Actually, this should all | |
1044 | be done differently anyhow. */ | |
1045 | name = bfd_asymbol_name (asym); | |
1046 | if (name[0] == '_' && name[1] == '_' && name[2] == '_') | |
1047 | { | |
1048 | ++name; | |
1049 | asym->name = name; | |
1050 | } | |
1051 | section = bfd_get_section_by_name (abfd, name); | |
1052 | if (section == (asection *) NULL) | |
1053 | { | |
1054 | char *copy; | |
1055 | ||
1056 | copy = (char *) bfd_alloc (abfd, strlen (name) + 1); | |
9783e04a DM |
1057 | if (!copy) |
1058 | { | |
d1ad85a6 | 1059 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1060 | return false; |
1061 | } | |
dae31cf5 ILT |
1062 | strcpy (copy, name); |
1063 | section = bfd_make_section (abfd, copy); | |
1064 | } | |
1065 | ||
1066 | /* Build a reloc pointing to this constructor. */ | |
1067 | reloc_chain = | |
1068 | (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain)); | |
9783e04a DM |
1069 | if (!reloc_chain) |
1070 | { | |
d1ad85a6 | 1071 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1072 | return false; |
1073 | } | |
dae31cf5 ILT |
1074 | reloc_chain->relent.sym_ptr_ptr = |
1075 | bfd_get_section (asym)->symbol_ptr_ptr; | |
1076 | reloc_chain->relent.address = section->_raw_size; | |
1077 | reloc_chain->relent.addend = asym->value; | |
8f46bac8 ILT |
1078 | reloc_chain->relent.howto = |
1079 | ecoff_backend (abfd)->constructor_reloc; | |
dae31cf5 ILT |
1080 | |
1081 | /* Set up the constructor section to hold the reloc. */ | |
1082 | section->flags = SEC_CONSTRUCTOR; | |
1083 | ++section->reloc_count; | |
1084 | ||
1085 | /* Constructor sections must be rounded to a boundary | |
1086 | based on the bitsize. These are not real sections-- | |
1087 | they are handled specially by the linker--so the ECOFF | |
1088 | 16 byte alignment restriction does not apply. */ | |
8f46bac8 | 1089 | bitsize = ecoff_backend (abfd)->constructor_bitsize; |
dae31cf5 ILT |
1090 | section->alignment_power = 1; |
1091 | while ((1 << section->alignment_power) < bitsize / 8) | |
1092 | ++section->alignment_power; | |
1093 | ||
1094 | reloc_chain->next = section->constructor_chain; | |
1095 | section->constructor_chain = reloc_chain; | |
1096 | section->_raw_size += bitsize / 8; | |
1097 | ||
1098 | /* Mark the symbol as a constructor. */ | |
1099 | asym->flags |= BSF_CONSTRUCTOR; | |
1100 | } | |
1101 | break; | |
1102 | } | |
1103 | } | |
9783e04a | 1104 | return true; |
dae31cf5 ILT |
1105 | } |
1106 | ||
1107 | /* Read an ECOFF symbol table. */ | |
1108 | ||
1109 | boolean | |
1110 | ecoff_slurp_symbol_table (abfd) | |
1111 | bfd *abfd; | |
1112 | { | |
1113 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
c9668c58 ILT |
1114 | const bfd_size_type external_ext_size |
1115 | = backend->debug_swap.external_ext_size; | |
1116 | const bfd_size_type external_sym_size | |
1117 | = backend->debug_swap.external_sym_size; | |
dae31cf5 | 1118 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) |
c9668c58 | 1119 | = backend->debug_swap.swap_ext_in; |
dae31cf5 | 1120 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) |
c9668c58 | 1121 | = backend->debug_swap.swap_sym_in; |
dae31cf5 ILT |
1122 | bfd_size_type internal_size; |
1123 | ecoff_symbol_type *internal; | |
1124 | ecoff_symbol_type *internal_ptr; | |
1125 | asymbol *indirect_ptr; | |
1126 | char *eraw_src; | |
1127 | char *eraw_end; | |
1128 | FDR *fdr_ptr; | |
1129 | FDR *fdr_end; | |
1130 | ||
1131 | /* If we've already read in the symbol table, do nothing. */ | |
1132 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
1133 | return true; | |
1134 | ||
1135 | /* Get the symbolic information. */ | |
aac6b32f ILT |
1136 | if (! ecoff_slurp_symbolic_info (abfd, (asection *) NULL, |
1137 | &ecoff_data (abfd)->debug_info)) | |
dae31cf5 ILT |
1138 | return false; |
1139 | if (bfd_get_symcount (abfd) == 0) | |
1140 | return true; | |
1141 | ||
1142 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
1143 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
1144 | if (internal == NULL) | |
1145 | { | |
d1ad85a6 | 1146 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
1147 | return false; |
1148 | } | |
1149 | ||
1150 | internal_ptr = internal; | |
1151 | indirect_ptr = NULL; | |
c9668c58 | 1152 | eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext; |
dae31cf5 | 1153 | eraw_end = (eraw_src |
c9668c58 | 1154 | + (ecoff_data (abfd)->debug_info.symbolic_header.iextMax |
dae31cf5 ILT |
1155 | * external_ext_size)); |
1156 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) | |
1157 | { | |
1158 | EXTR internal_esym; | |
1159 | ||
1160 | (*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym); | |
c9668c58 | 1161 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext |
dae31cf5 | 1162 | + internal_esym.asym.iss); |
9783e04a DM |
1163 | if (!ecoff_set_symbol_info (abfd, &internal_esym.asym, |
1164 | &internal_ptr->symbol, 1, &indirect_ptr)) | |
1165 | return false; | |
48edba81 ILT |
1166 | /* The alpha uses a negative ifd field for section symbols. */ |
1167 | if (internal_esym.ifd >= 0) | |
c9668c58 ILT |
1168 | internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr |
1169 | + internal_esym.ifd); | |
48edba81 ILT |
1170 | else |
1171 | internal_ptr->fdr = NULL; | |
dae31cf5 ILT |
1172 | internal_ptr->local = false; |
1173 | internal_ptr->native = (PTR) eraw_src; | |
1174 | } | |
1175 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1176 | ||
1177 | /* The local symbols must be accessed via the fdr's, because the | |
1178 | string and aux indices are relative to the fdr information. */ | |
c9668c58 ILT |
1179 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; |
1180 | fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
dae31cf5 ILT |
1181 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
1182 | { | |
1183 | char *lraw_src; | |
1184 | char *lraw_end; | |
1185 | ||
c9668c58 | 1186 | lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym |
dae31cf5 ILT |
1187 | + fdr_ptr->isymBase * external_sym_size); |
1188 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; | |
1189 | for (; | |
1190 | lraw_src < lraw_end; | |
1191 | lraw_src += external_sym_size, internal_ptr++) | |
1192 | { | |
1193 | SYMR internal_sym; | |
1194 | ||
1195 | (*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym); | |
c9668c58 | 1196 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss |
dae31cf5 ILT |
1197 | + fdr_ptr->issBase |
1198 | + internal_sym.iss); | |
9783e04a DM |
1199 | if (!ecoff_set_symbol_info (abfd, &internal_sym, |
1200 | &internal_ptr->symbol, 0, &indirect_ptr)) | |
1201 | return false; | |
dae31cf5 ILT |
1202 | internal_ptr->fdr = fdr_ptr; |
1203 | internal_ptr->local = true; | |
1204 | internal_ptr->native = (PTR) lraw_src; | |
1205 | } | |
1206 | } | |
1207 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1208 | ||
1209 | ecoff_data (abfd)->canonical_symbols = internal; | |
1210 | ||
1211 | return true; | |
1212 | } | |
1213 | ||
1214 | /* Return the amount of space needed for the canonical symbols. */ | |
1215 | ||
326e32d7 | 1216 | long |
dae31cf5 ILT |
1217 | ecoff_get_symtab_upper_bound (abfd) |
1218 | bfd *abfd; | |
1219 | { | |
aac6b32f ILT |
1220 | if (! ecoff_slurp_symbolic_info (abfd, (asection *) NULL, |
1221 | &ecoff_data (abfd)->debug_info)) | |
326e32d7 ILT |
1222 | return -1; |
1223 | ||
1224 | if (bfd_get_symcount (abfd) == 0) | |
dae31cf5 ILT |
1225 | return 0; |
1226 | ||
1227 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
1228 | } | |
1229 | ||
b59f0276 | 1230 | /* Get the canonical symbols. */ |
dae31cf5 | 1231 | |
326e32d7 | 1232 | long |
dae31cf5 ILT |
1233 | ecoff_get_symtab (abfd, alocation) |
1234 | bfd *abfd; | |
1235 | asymbol **alocation; | |
1236 | { | |
1237 | unsigned int counter = 0; | |
1238 | ecoff_symbol_type *symbase; | |
1239 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
1240 | ||
326e32d7 ILT |
1241 | if (ecoff_slurp_symbol_table (abfd) == false) |
1242 | return -1; | |
1243 | if (bfd_get_symcount (abfd) == 0) | |
dae31cf5 ILT |
1244 | return 0; |
1245 | ||
1246 | symbase = ecoff_data (abfd)->canonical_symbols; | |
1247 | while (counter < bfd_get_symcount (abfd)) | |
1248 | { | |
1249 | *(location++) = symbase++; | |
1250 | counter++; | |
1251 | } | |
1252 | *location++ = (ecoff_symbol_type *) NULL; | |
1253 | return bfd_get_symcount (abfd); | |
1254 | } | |
1255 | ||
1256 | /* Turn ECOFF type information into a printable string. | |
1257 | ecoff_emit_aggregate and ecoff_type_to_string are from | |
1258 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ | |
1259 | ||
1260 | /* Write aggregate information to a string. */ | |
1261 | ||
1262 | static void | |
2ec2e6a9 | 1263 | ecoff_emit_aggregate (abfd, fdr, string, rndx, isym, which) |
dae31cf5 | 1264 | bfd *abfd; |
2ec2e6a9 | 1265 | FDR *fdr; |
dae31cf5 ILT |
1266 | char *string; |
1267 | RNDXR *rndx; | |
1268 | long isym; | |
2ec2e6a9 | 1269 | const char *which; |
dae31cf5 | 1270 | { |
2ec2e6a9 ILT |
1271 | const struct ecoff_debug_swap * const debug_swap = |
1272 | &ecoff_backend (abfd)->debug_swap; | |
1273 | struct ecoff_debug_info * const debug_info = &ecoff_data (abfd)->debug_info; | |
1274 | unsigned int ifd = rndx->rfd; | |
1275 | unsigned int indx = rndx->index; | |
1276 | const char *name; | |
dae31cf5 ILT |
1277 | |
1278 | if (ifd == 0xfff) | |
1279 | ifd = isym; | |
1280 | ||
2ec2e6a9 ILT |
1281 | /* An ifd of -1 is an opaque type. An escaped index of 0 is a |
1282 | struct return type of a procedure compiled without -g. */ | |
1283 | if (ifd == 0xffffffff | |
1284 | || (rndx->rfd == 0xfff && indx == 0)) | |
1285 | name = "<undefined>"; | |
1286 | else if (indx == indexNil) | |
1287 | name = "<no name>"; | |
dae31cf5 ILT |
1288 | else |
1289 | { | |
dae31cf5 ILT |
1290 | SYMR sym; |
1291 | ||
2ec2e6a9 ILT |
1292 | if (debug_info->external_rfd == NULL) |
1293 | fdr = debug_info->fdr + ifd; | |
1294 | else | |
1295 | { | |
1296 | RFDT rfd; | |
1297 | ||
1298 | (*debug_swap->swap_rfd_in) (abfd, | |
1299 | ((char *) debug_info->external_rfd | |
1300 | + ((fdr->rfdBase + ifd) | |
1301 | * debug_swap->external_rfd_size)), | |
1302 | &rfd); | |
1303 | fdr = debug_info->fdr + rfd; | |
1304 | } | |
1305 | ||
1306 | indx += fdr->isymBase; | |
1307 | ||
1308 | (*debug_swap->swap_sym_in) (abfd, | |
1309 | ((char *) debug_info->external_sym | |
1310 | + indx * debug_swap->external_sym_size), | |
1311 | &sym); | |
1312 | ||
1313 | name = debug_info->ss + fdr->issBase + sym.iss; | |
dae31cf5 ILT |
1314 | } |
1315 | ||
1316 | sprintf (string, | |
2ec2e6a9 | 1317 | "%s %s { ifd = %u, index = %lu }", |
dae31cf5 | 1318 | which, name, ifd, |
c9668c58 | 1319 | ((long) indx |
2ec2e6a9 | 1320 | + debug_info->symbolic_header.iextMax)); |
dae31cf5 ILT |
1321 | } |
1322 | ||
1323 | /* Convert the type information to string format. */ | |
1324 | ||
1325 | static char * | |
2ec2e6a9 | 1326 | ecoff_type_to_string (abfd, fdr, indx) |
dae31cf5 | 1327 | bfd *abfd; |
2ec2e6a9 | 1328 | FDR *fdr; |
dae31cf5 | 1329 | unsigned int indx; |
dae31cf5 | 1330 | { |
2ec2e6a9 ILT |
1331 | union aux_ext *aux_ptr; |
1332 | int bigendian; | |
dae31cf5 ILT |
1333 | AUXU u; |
1334 | struct qual { | |
1335 | unsigned int type; | |
1336 | int low_bound; | |
1337 | int high_bound; | |
1338 | int stride; | |
1339 | } qualifiers[7]; | |
dae31cf5 ILT |
1340 | unsigned int basic_type; |
1341 | int i; | |
1342 | static char buffer1[1024]; | |
1343 | static char buffer2[1024]; | |
1344 | char *p1 = buffer1; | |
1345 | char *p2 = buffer2; | |
1346 | RNDXR rndx; | |
1347 | ||
2ec2e6a9 ILT |
1348 | aux_ptr = ecoff_data (abfd)->debug_info.external_aux + fdr->iauxBase; |
1349 | bigendian = fdr->fBigendian; | |
1350 | ||
dae31cf5 ILT |
1351 | for (i = 0; i < 7; i++) |
1352 | { | |
1353 | qualifiers[i].low_bound = 0; | |
1354 | qualifiers[i].high_bound = 0; | |
1355 | qualifiers[i].stride = 0; | |
1356 | } | |
1357 | ||
1358 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
1359 | return "-1 (no type)"; | |
1360 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
1361 | ||
1362 | basic_type = u.ti.bt; | |
1363 | qualifiers[0].type = u.ti.tq0; | |
1364 | qualifiers[1].type = u.ti.tq1; | |
1365 | qualifiers[2].type = u.ti.tq2; | |
1366 | qualifiers[3].type = u.ti.tq3; | |
1367 | qualifiers[4].type = u.ti.tq4; | |
1368 | qualifiers[5].type = u.ti.tq5; | |
1369 | qualifiers[6].type = tqNil; | |
1370 | ||
1371 | /* | |
1372 | * Go get the basic type. | |
1373 | */ | |
1374 | switch (basic_type) | |
1375 | { | |
1376 | case btNil: /* undefined */ | |
1377 | strcpy (p1, "nil"); | |
1378 | break; | |
1379 | ||
1380 | case btAdr: /* address - integer same size as pointer */ | |
1381 | strcpy (p1, "address"); | |
1382 | break; | |
1383 | ||
1384 | case btChar: /* character */ | |
1385 | strcpy (p1, "char"); | |
1386 | break; | |
1387 | ||
1388 | case btUChar: /* unsigned character */ | |
1389 | strcpy (p1, "unsigned char"); | |
1390 | break; | |
1391 | ||
1392 | case btShort: /* short */ | |
1393 | strcpy (p1, "short"); | |
1394 | break; | |
1395 | ||
1396 | case btUShort: /* unsigned short */ | |
1397 | strcpy (p1, "unsigned short"); | |
1398 | break; | |
1399 | ||
1400 | case btInt: /* int */ | |
1401 | strcpy (p1, "int"); | |
1402 | break; | |
1403 | ||
1404 | case btUInt: /* unsigned int */ | |
1405 | strcpy (p1, "unsigned int"); | |
1406 | break; | |
1407 | ||
1408 | case btLong: /* long */ | |
1409 | strcpy (p1, "long"); | |
1410 | break; | |
1411 | ||
1412 | case btULong: /* unsigned long */ | |
1413 | strcpy (p1, "unsigned long"); | |
1414 | break; | |
1415 | ||
1416 | case btFloat: /* float (real) */ | |
1417 | strcpy (p1, "float"); | |
1418 | break; | |
1419 | ||
1420 | case btDouble: /* Double (real) */ | |
1421 | strcpy (p1, "double"); | |
1422 | break; | |
1423 | ||
1424 | /* Structures add 1-2 aux words: | |
1425 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
1426 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1427 | ||
1428 | case btStruct: /* Structure (Record) */ | |
1429 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
2ec2e6a9 | 1430 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
4c3721d5 | 1431 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1432 | "struct"); |
1433 | indx++; /* skip aux words */ | |
1434 | break; | |
1435 | ||
1436 | /* Unions add 1-2 aux words: | |
1437 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1438 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1439 | ||
1440 | case btUnion: /* Union */ | |
1441 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
2ec2e6a9 | 1442 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
4c3721d5 | 1443 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1444 | "union"); |
1445 | indx++; /* skip aux words */ | |
1446 | break; | |
1447 | ||
1448 | /* Enumerations add 1-2 aux words: | |
1449 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1450 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1451 | ||
1452 | case btEnum: /* Enumeration */ | |
1453 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
2ec2e6a9 | 1454 | ecoff_emit_aggregate (abfd, fdr, p1, &rndx, |
4c3721d5 | 1455 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1456 | "enum"); |
1457 | indx++; /* skip aux words */ | |
1458 | break; | |
1459 | ||
1460 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1461 | strcpy (p1, "typedef"); | |
1462 | break; | |
1463 | ||
1464 | case btRange: /* subrange of int */ | |
1465 | strcpy (p1, "subrange"); | |
1466 | break; | |
1467 | ||
1468 | case btSet: /* pascal sets */ | |
1469 | strcpy (p1, "set"); | |
1470 | break; | |
1471 | ||
1472 | case btComplex: /* fortran complex */ | |
1473 | strcpy (p1, "complex"); | |
1474 | break; | |
1475 | ||
1476 | case btDComplex: /* fortran double complex */ | |
1477 | strcpy (p1, "double complex"); | |
1478 | break; | |
1479 | ||
1480 | case btIndirect: /* forward or unnamed typedef */ | |
1481 | strcpy (p1, "forward/unamed typedef"); | |
1482 | break; | |
1483 | ||
1484 | case btFixedDec: /* Fixed Decimal */ | |
1485 | strcpy (p1, "fixed decimal"); | |
1486 | break; | |
1487 | ||
1488 | case btFloatDec: /* Float Decimal */ | |
1489 | strcpy (p1, "float decimal"); | |
1490 | break; | |
1491 | ||
1492 | case btString: /* Varying Length Character String */ | |
1493 | strcpy (p1, "string"); | |
1494 | break; | |
1495 | ||
1496 | case btBit: /* Aligned Bit String */ | |
1497 | strcpy (p1, "bit"); | |
1498 | break; | |
1499 | ||
1500 | case btPicture: /* Picture */ | |
1501 | strcpy (p1, "picture"); | |
1502 | break; | |
1503 | ||
1504 | case btVoid: /* Void */ | |
1505 | strcpy (p1, "void"); | |
1506 | break; | |
1507 | ||
1508 | default: | |
1509 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
1510 | break; | |
1511 | } | |
1512 | ||
1513 | p1 += strlen (buffer1); | |
1514 | ||
1515 | /* | |
1516 | * If this is a bitfield, get the bitsize. | |
1517 | */ | |
1518 | if (u.ti.fBitfield) | |
1519 | { | |
1520 | int bitsize; | |
1521 | ||
1522 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1523 | sprintf (p1, " : %d", bitsize); | |
1524 | p1 += strlen (buffer1); | |
1525 | } | |
1526 | ||
1527 | ||
1528 | /* | |
1529 | * Deal with any qualifiers. | |
1530 | */ | |
1531 | if (qualifiers[0].type != tqNil) | |
1532 | { | |
1533 | /* | |
1534 | * Snarf up any array bounds in the correct order. Arrays | |
1535 | * store 5 successive words in the aux. table: | |
1536 | * word 0 RNDXR to type of the bounds (ie, int) | |
1537 | * word 1 Current file descriptor index | |
1538 | * word 2 low bound | |
1539 | * word 3 high bound (or -1 if []) | |
1540 | * word 4 stride size in bits | |
1541 | */ | |
1542 | for (i = 0; i < 7; i++) | |
1543 | { | |
1544 | if (qualifiers[i].type == tqArray) | |
1545 | { | |
1546 | qualifiers[i].low_bound = | |
1547 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1548 | qualifiers[i].high_bound = | |
1549 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1550 | qualifiers[i].stride = | |
1551 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1552 | indx += 5; | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | /* | |
1557 | * Now print out the qualifiers. | |
1558 | */ | |
1559 | for (i = 0; i < 6; i++) | |
1560 | { | |
1561 | switch (qualifiers[i].type) | |
1562 | { | |
1563 | case tqNil: | |
1564 | case tqMax: | |
1565 | break; | |
1566 | ||
1567 | case tqPtr: | |
1568 | strcpy (p2, "ptr to "); | |
1569 | p2 += sizeof ("ptr to ")-1; | |
1570 | break; | |
1571 | ||
1572 | case tqVol: | |
1573 | strcpy (p2, "volatile "); | |
1574 | p2 += sizeof ("volatile ")-1; | |
1575 | break; | |
1576 | ||
1577 | case tqFar: | |
1578 | strcpy (p2, "far "); | |
1579 | p2 += sizeof ("far ")-1; | |
1580 | break; | |
1581 | ||
1582 | case tqProc: | |
1583 | strcpy (p2, "func. ret. "); | |
1584 | p2 += sizeof ("func. ret. "); | |
1585 | break; | |
1586 | ||
1587 | case tqArray: | |
1588 | { | |
1589 | int first_array = i; | |
1590 | int j; | |
1591 | ||
1592 | /* Print array bounds reversed (ie, in the order the C | |
1593 | programmer writes them). C is such a fun language.... */ | |
1594 | ||
1595 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1596 | i++; | |
1597 | ||
1598 | for (j = i; j >= first_array; j--) | |
1599 | { | |
1600 | strcpy (p2, "array ["); | |
1601 | p2 += sizeof ("array [")-1; | |
1602 | if (qualifiers[j].low_bound != 0) | |
1603 | sprintf (p2, | |
1604 | "%ld:%ld {%ld bits}", | |
1605 | (long) qualifiers[j].low_bound, | |
1606 | (long) qualifiers[j].high_bound, | |
1607 | (long) qualifiers[j].stride); | |
1608 | ||
1609 | else if (qualifiers[j].high_bound != -1) | |
1610 | sprintf (p2, | |
1611 | "%ld {%ld bits}", | |
1612 | (long) (qualifiers[j].high_bound + 1), | |
1613 | (long) (qualifiers[j].stride)); | |
1614 | ||
1615 | else | |
1616 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1617 | ||
1618 | p2 += strlen (p2); | |
1619 | strcpy (p2, "] of "); | |
1620 | p2 += sizeof ("] of ")-1; | |
1621 | } | |
1622 | } | |
1623 | break; | |
1624 | } | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | strcpy (p2, buffer1); | |
1629 | return buffer2; | |
1630 | } | |
1631 | ||
1632 | /* Return information about ECOFF symbol SYMBOL in RET. */ | |
1633 | ||
728472f1 | 1634 | /*ARGSUSED*/ |
dae31cf5 ILT |
1635 | void |
1636 | ecoff_get_symbol_info (abfd, symbol, ret) | |
1637 | bfd *abfd; /* Ignored. */ | |
1638 | asymbol *symbol; | |
1639 | symbol_info *ret; | |
1640 | { | |
1641 | bfd_symbol_info (symbol, ret); | |
1642 | } | |
1643 | ||
1644 | /* Print information about an ECOFF symbol. */ | |
1645 | ||
1646 | void | |
1647 | ecoff_print_symbol (abfd, filep, symbol, how) | |
1648 | bfd *abfd; | |
1649 | PTR filep; | |
1650 | asymbol *symbol; | |
1651 | bfd_print_symbol_type how; | |
1652 | { | |
c9668c58 ILT |
1653 | const struct ecoff_debug_swap * const debug_swap |
1654 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
1655 | FILE *file = (FILE *)filep; |
1656 | ||
1657 | switch (how) | |
1658 | { | |
1659 | case bfd_print_symbol_name: | |
1660 | fprintf (file, "%s", symbol->name); | |
1661 | break; | |
1662 | case bfd_print_symbol_more: | |
1663 | if (ecoffsymbol (symbol)->local) | |
1664 | { | |
1665 | SYMR ecoff_sym; | |
1666 | ||
c9668c58 ILT |
1667 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
1668 | &ecoff_sym); | |
dae31cf5 ILT |
1669 | fprintf (file, "ecoff local "); |
1670 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); | |
1671 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, | |
1672 | (unsigned) ecoff_sym.sc); | |
1673 | } | |
1674 | else | |
1675 | { | |
1676 | EXTR ecoff_ext; | |
1677 | ||
c9668c58 ILT |
1678 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
1679 | &ecoff_ext); | |
dae31cf5 ILT |
1680 | fprintf (file, "ecoff extern "); |
1681 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1682 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, | |
1683 | (unsigned) ecoff_ext.asym.sc); | |
1684 | } | |
1685 | break; | |
1686 | case bfd_print_symbol_all: | |
1687 | /* Print out the symbols in a reasonable way */ | |
1688 | { | |
1689 | char type; | |
1690 | int pos; | |
1691 | EXTR ecoff_ext; | |
1692 | char jmptbl; | |
1693 | char cobol_main; | |
1694 | char weakext; | |
1695 | ||
1696 | if (ecoffsymbol (symbol)->local) | |
1697 | { | |
c9668c58 ILT |
1698 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
1699 | &ecoff_ext.asym); | |
dae31cf5 ILT |
1700 | type = 'l'; |
1701 | pos = ((((char *) ecoffsymbol (symbol)->native | |
c9668c58 ILT |
1702 | - (char *) ecoff_data (abfd)->debug_info.external_sym) |
1703 | / debug_swap->external_sym_size) | |
1704 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax); | |
dae31cf5 ILT |
1705 | jmptbl = ' '; |
1706 | cobol_main = ' '; | |
1707 | weakext = ' '; | |
1708 | } | |
1709 | else | |
1710 | { | |
c9668c58 ILT |
1711 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
1712 | &ecoff_ext); | |
dae31cf5 ILT |
1713 | type = 'e'; |
1714 | pos = (((char *) ecoffsymbol (symbol)->native | |
c9668c58 ILT |
1715 | - (char *) ecoff_data (abfd)->debug_info.external_ext) |
1716 | / debug_swap->external_ext_size); | |
dae31cf5 ILT |
1717 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; |
1718 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1719 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1720 | } | |
1721 | ||
1722 | fprintf (file, "[%3d] %c ", | |
1723 | pos, type); | |
1724 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1725 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", | |
1726 | (unsigned) ecoff_ext.asym.st, | |
1727 | (unsigned) ecoff_ext.asym.sc, | |
1728 | (unsigned) ecoff_ext.asym.index, | |
1729 | jmptbl, cobol_main, weakext, | |
1730 | symbol->name); | |
1731 | ||
1732 | if (ecoffsymbol (symbol)->fdr != NULL | |
1733 | && ecoff_ext.asym.index != indexNil) | |
1734 | { | |
2ec2e6a9 | 1735 | FDR *fdr; |
dae31cf5 ILT |
1736 | unsigned int indx; |
1737 | int bigendian; | |
1738 | bfd_size_type sym_base; | |
1739 | union aux_ext *aux_base; | |
1740 | ||
2ec2e6a9 | 1741 | fdr = ecoffsymbol (symbol)->fdr; |
dae31cf5 ILT |
1742 | indx = ecoff_ext.asym.index; |
1743 | ||
1744 | /* sym_base is used to map the fdr relative indices which | |
1745 | appear in the file to the position number which we are | |
1746 | using. */ | |
2ec2e6a9 | 1747 | sym_base = fdr->isymBase; |
dae31cf5 | 1748 | if (ecoffsymbol (symbol)->local) |
c9668c58 ILT |
1749 | sym_base += |
1750 | ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
dae31cf5 ILT |
1751 | |
1752 | /* aux_base is the start of the aux entries for this file; | |
1753 | asym.index is an offset from this. */ | |
c9668c58 | 1754 | aux_base = (ecoff_data (abfd)->debug_info.external_aux |
2ec2e6a9 | 1755 | + fdr->iauxBase); |
dae31cf5 ILT |
1756 | |
1757 | /* The aux entries are stored in host byte order; the | |
1758 | order is indicated by a bit in the fdr. */ | |
2ec2e6a9 | 1759 | bigendian = fdr->fBigendian; |
dae31cf5 ILT |
1760 | |
1761 | /* This switch is basically from gcc/mips-tdump.c */ | |
1762 | switch (ecoff_ext.asym.st) | |
1763 | { | |
1764 | case stNil: | |
1765 | case stLabel: | |
1766 | break; | |
1767 | ||
1768 | case stFile: | |
1769 | case stBlock: | |
1770 | fprintf (file, "\n End+1 symbol: %ld", | |
1771 | (long) (indx + sym_base)); | |
1772 | break; | |
1773 | ||
1774 | case stEnd: | |
1775 | if (ecoff_ext.asym.sc == scText | |
1776 | || ecoff_ext.asym.sc == scInfo) | |
1777 | fprintf (file, "\n First symbol: %ld", | |
1778 | (long) (indx + sym_base)); | |
1779 | else | |
1780 | fprintf (file, "\n First symbol: %ld", | |
2ec2e6a9 ILT |
1781 | ((long) |
1782 | (AUX_GET_ISYM (bigendian, | |
1783 | &aux_base[ecoff_ext.asym.index]) | |
1784 | + sym_base))); | |
dae31cf5 ILT |
1785 | break; |
1786 | ||
1787 | case stProc: | |
1788 | case stStaticProc: | |
1789 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1790 | ; | |
1791 | else if (ecoffsymbol (symbol)->local) | |
1792 | fprintf (file, "\n End+1 symbol: %-7ld Type: %s", | |
2ec2e6a9 ILT |
1793 | ((long) |
1794 | (AUX_GET_ISYM (bigendian, | |
1795 | &aux_base[ecoff_ext.asym.index]) | |
1796 | + sym_base)), | |
1797 | ecoff_type_to_string (abfd, fdr, indx + 1)); | |
dae31cf5 | 1798 | else |
c9668c58 ILT |
1799 | fprintf (file, "\n Local symbol: %ld", |
1800 | ((long) indx | |
1801 | + (long) sym_base | |
1802 | + (ecoff_data (abfd) | |
1803 | ->debug_info.symbolic_header.iextMax))); | |
dae31cf5 ILT |
1804 | break; |
1805 | ||
2ec2e6a9 ILT |
1806 | case stStruct: |
1807 | fprintf (file, "\n struct; End+1 symbol: %ld", | |
1808 | (long) (indx + sym_base)); | |
1809 | break; | |
1810 | ||
1811 | case stUnion: | |
1812 | fprintf (file, "\n union; End+1 symbol: %ld", | |
1813 | (long) (indx + sym_base)); | |
1814 | break; | |
1815 | ||
1816 | case stEnum: | |
1817 | fprintf (file, "\n enum; End+1 symbol: %ld", | |
1818 | (long) (indx + sym_base)); | |
1819 | break; | |
1820 | ||
dae31cf5 ILT |
1821 | default: |
1822 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1823 | fprintf (file, "\n Type: %s", | |
2ec2e6a9 | 1824 | ecoff_type_to_string (abfd, fdr, indx)); |
dae31cf5 ILT |
1825 | break; |
1826 | } | |
1827 | } | |
1828 | } | |
1829 | break; | |
1830 | } | |
1831 | } | |
1832 | \f | |
dae31cf5 ILT |
1833 | /* Read in the relocs for a section. */ |
1834 | ||
1835 | static boolean | |
1836 | ecoff_slurp_reloc_table (abfd, section, symbols) | |
1837 | bfd *abfd; | |
1838 | asection *section; | |
1839 | asymbol **symbols; | |
1840 | { | |
1841 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1842 | arelent *internal_relocs; | |
1843 | bfd_size_type external_reloc_size; | |
1844 | bfd_size_type external_relocs_size; | |
1845 | char *external_relocs; | |
1846 | arelent *rptr; | |
1847 | unsigned int i; | |
1848 | ||
1849 | if (section->relocation != (arelent *) NULL | |
1850 | || section->reloc_count == 0 | |
1851 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1852 | return true; | |
1853 | ||
1854 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1855 | return false; | |
1856 | ||
1857 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1858 | (sizeof (arelent) | |
1859 | * section->reloc_count)); | |
1860 | external_reloc_size = backend->external_reloc_size; | |
1861 | external_relocs_size = external_reloc_size * section->reloc_count; | |
1862 | external_relocs = (char *) bfd_alloc (abfd, external_relocs_size); | |
1863 | if (internal_relocs == (arelent *) NULL | |
1864 | || external_relocs == (char *) NULL) | |
1865 | { | |
d1ad85a6 | 1866 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
1867 | return false; |
1868 | } | |
1869 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1870 | return false; | |
1871 | if (bfd_read (external_relocs, 1, external_relocs_size, abfd) | |
1872 | != external_relocs_size) | |
25057836 | 1873 | return false; |
dae31cf5 ILT |
1874 | |
1875 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1876 | { | |
1877 | struct internal_reloc intern; | |
1878 | ||
1879 | (*backend->swap_reloc_in) (abfd, | |
1880 | external_relocs + i * external_reloc_size, | |
1881 | &intern); | |
1882 | ||
dae31cf5 ILT |
1883 | if (intern.r_extern) |
1884 | { | |
1885 | /* r_symndx is an index into the external symbols. */ | |
1886 | BFD_ASSERT (intern.r_symndx >= 0 | |
1887 | && (intern.r_symndx | |
c9668c58 ILT |
1888 | < (ecoff_data (abfd) |
1889 | ->debug_info.symbolic_header.iextMax))); | |
dae31cf5 ILT |
1890 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; |
1891 | rptr->addend = 0; | |
1892 | } | |
e544ed4f ILT |
1893 | else if (intern.r_symndx == RELOC_SECTION_NONE |
1894 | || intern.r_symndx == RELOC_SECTION_ABS) | |
1895 | { | |
1896 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1897 | rptr->addend = 0; | |
1898 | } | |
dae31cf5 ILT |
1899 | else |
1900 | { | |
1901 | CONST char *sec_name; | |
1902 | asection *sec; | |
1903 | ||
1904 | /* r_symndx is a section key. */ | |
1905 | switch (intern.r_symndx) | |
1906 | { | |
1907 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1908 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1909 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1910 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1911 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1912 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1913 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1914 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1915 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
8f46bac8 ILT |
1916 | case RELOC_SECTION_XDATA: sec_name = ".xdata"; break; |
1917 | case RELOC_SECTION_PDATA: sec_name = ".pdata"; break; | |
c9668c58 | 1918 | case RELOC_SECTION_FINI: sec_name = ".fini"; break; |
8f46bac8 | 1919 | case RELOC_SECTION_LITA: sec_name = ".lita"; break; |
dae31cf5 ILT |
1920 | default: abort (); |
1921 | } | |
1922 | ||
1923 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1924 | if (sec == (asection *) NULL) | |
e544ed4f | 1925 | abort (); |
dae31cf5 ILT |
1926 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; |
1927 | ||
1928 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
dae31cf5 ILT |
1929 | } |
1930 | ||
1931 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
dae31cf5 | 1932 | |
8f46bac8 ILT |
1933 | /* Let the backend select the howto field and do any other |
1934 | required processing. */ | |
c9668c58 | 1935 | (*backend->adjust_reloc_in) (abfd, &intern, rptr); |
dae31cf5 ILT |
1936 | } |
1937 | ||
1938 | bfd_release (abfd, external_relocs); | |
1939 | ||
1940 | section->relocation = internal_relocs; | |
1941 | ||
1942 | return true; | |
1943 | } | |
1944 | ||
1945 | /* Get a canonical list of relocs. */ | |
1946 | ||
326e32d7 | 1947 | long |
dae31cf5 ILT |
1948 | ecoff_canonicalize_reloc (abfd, section, relptr, symbols) |
1949 | bfd *abfd; | |
1950 | asection *section; | |
1951 | arelent **relptr; | |
1952 | asymbol **symbols; | |
1953 | { | |
1954 | unsigned int count; | |
1955 | ||
1956 | if (section->flags & SEC_CONSTRUCTOR) | |
1957 | { | |
1958 | arelent_chain *chain; | |
1959 | ||
1960 | /* This section has relocs made up by us, not the file, so take | |
1961 | them out of their chain and place them into the data area | |
1962 | provided. */ | |
1963 | for (count = 0, chain = section->constructor_chain; | |
1964 | count < section->reloc_count; | |
1965 | count++, chain = chain->next) | |
1966 | *relptr++ = &chain->relent; | |
1967 | } | |
1968 | else | |
1969 | { | |
1970 | arelent *tblptr; | |
1971 | ||
1972 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
326e32d7 | 1973 | return -1; |
dae31cf5 ILT |
1974 | |
1975 | tblptr = section->relocation; | |
dae31cf5 ILT |
1976 | |
1977 | for (count = 0; count < section->reloc_count; count++) | |
1978 | *relptr++ = tblptr++; | |
1979 | } | |
1980 | ||
1981 | *relptr = (arelent *) NULL; | |
1982 | ||
1983 | return section->reloc_count; | |
1984 | } | |
dae31cf5 ILT |
1985 | \f |
1986 | /* Provided a BFD, a section and an offset into the section, calculate | |
1987 | and return the name of the source file and the line nearest to the | |
1988 | wanted location. */ | |
1989 | ||
728472f1 | 1990 | /*ARGSUSED*/ |
dae31cf5 ILT |
1991 | boolean |
1992 | ecoff_find_nearest_line (abfd, | |
1993 | section, | |
1994 | ignore_symbols, | |
1995 | offset, | |
1996 | filename_ptr, | |
1997 | functionname_ptr, | |
1998 | retline_ptr) | |
1999 | bfd *abfd; | |
2000 | asection *section; | |
2001 | asymbol **ignore_symbols; | |
2002 | bfd_vma offset; | |
2003 | CONST char **filename_ptr; | |
2004 | CONST char **functionname_ptr; | |
2005 | unsigned int *retline_ptr; | |
2006 | { | |
c9668c58 ILT |
2007 | const struct ecoff_debug_swap * const debug_swap |
2008 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
2009 | FDR *fdr_ptr; |
2010 | FDR *fdr_start; | |
2011 | FDR *fdr_end; | |
2012 | FDR *fdr_hold; | |
2013 | bfd_size_type external_pdr_size; | |
2014 | char *pdr_ptr; | |
2015 | char *pdr_end; | |
2016 | PDR pdr; | |
4fa4476b | 2017 | bfd_vma first_off; |
dae31cf5 ILT |
2018 | unsigned char *line_ptr; |
2019 | unsigned char *line_end; | |
2020 | int lineno; | |
2021 | ||
2022 | /* If we're not in the .text section, we don't have any line | |
2023 | numbers. */ | |
2024 | if (strcmp (section->name, _TEXT) != 0 | |
2025 | || offset < ecoff_data (abfd)->text_start | |
2026 | || offset >= ecoff_data (abfd)->text_end) | |
2027 | return false; | |
2028 | ||
2029 | /* Make sure we have the FDR's. */ | |
aac6b32f ILT |
2030 | if (! ecoff_slurp_symbolic_info (abfd, (asection *) NULL, |
2031 | &ecoff_data (abfd)->debug_info) | |
dae31cf5 ILT |
2032 | || bfd_get_symcount (abfd) == 0) |
2033 | return false; | |
2034 | ||
2035 | /* Each file descriptor (FDR) has a memory address. Here we track | |
2036 | down which FDR we want. The FDR's are stored in increasing | |
2037 | memory order. If speed is ever important, this can become a | |
2038 | binary search. We must ignore FDR's with no PDR entries; they | |
2039 | will have the adr of the FDR before or after them. */ | |
c9668c58 ILT |
2040 | fdr_start = ecoff_data (abfd)->debug_info.fdr; |
2041 | fdr_end = fdr_start + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
dae31cf5 ILT |
2042 | fdr_hold = (FDR *) NULL; |
2043 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
2044 | { | |
2045 | if (fdr_ptr->cpd == 0) | |
2046 | continue; | |
2047 | if (offset < fdr_ptr->adr) | |
2048 | break; | |
2049 | fdr_hold = fdr_ptr; | |
2050 | } | |
2051 | if (fdr_hold == (FDR *) NULL) | |
2052 | return false; | |
2053 | fdr_ptr = fdr_hold; | |
2054 | ||
2055 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
2056 | have an address, which is relative to the FDR address, and are | |
2057 | also stored in increasing memory order. */ | |
2058 | offset -= fdr_ptr->adr; | |
c9668c58 ILT |
2059 | external_pdr_size = debug_swap->external_pdr_size; |
2060 | pdr_ptr = ((char *) ecoff_data (abfd)->debug_info.external_pdr | |
dae31cf5 ILT |
2061 | + fdr_ptr->ipdFirst * external_pdr_size); |
2062 | pdr_end = pdr_ptr + fdr_ptr->cpd * external_pdr_size; | |
c9668c58 | 2063 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
4fa4476b ILT |
2064 | if (offset < pdr.adr) |
2065 | return false; | |
dae31cf5 ILT |
2066 | |
2067 | /* The address of the first PDR is an offset which applies to the | |
2068 | addresses of all the PDR's. */ | |
4fa4476b | 2069 | first_off = pdr.adr; |
dae31cf5 ILT |
2070 | |
2071 | for (pdr_ptr += external_pdr_size; | |
2072 | pdr_ptr < pdr_end; | |
2073 | pdr_ptr += external_pdr_size) | |
2074 | { | |
c9668c58 | 2075 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 ILT |
2076 | if (offset < pdr.adr) |
2077 | break; | |
2078 | } | |
2079 | ||
2080 | /* Now we can look for the actual line number. The line numbers are | |
2081 | stored in a very funky format, which I won't try to describe. | |
2082 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
2083 | we want; we need this to compute line_end. */ | |
c9668c58 | 2084 | line_end = ecoff_data (abfd)->debug_info.line; |
dae31cf5 ILT |
2085 | if (pdr_ptr == pdr_end) |
2086 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
2087 | else | |
2088 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
2089 | ||
2090 | /* Now change pdr and pdr_ptr to the one we want. */ | |
2091 | pdr_ptr -= external_pdr_size; | |
c9668c58 | 2092 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 | 2093 | |
4fa4476b | 2094 | offset -= pdr.adr - first_off; |
dae31cf5 | 2095 | lineno = pdr.lnLow; |
c9668c58 | 2096 | line_ptr = (ecoff_data (abfd)->debug_info.line |
dae31cf5 ILT |
2097 | + fdr_ptr->cbLineOffset |
2098 | + pdr.cbLineOffset); | |
2099 | while (line_ptr < line_end) | |
2100 | { | |
2101 | int delta; | |
2102 | int count; | |
2103 | ||
2104 | delta = *line_ptr >> 4; | |
2105 | if (delta >= 0x8) | |
2106 | delta -= 0x10; | |
2107 | count = (*line_ptr & 0xf) + 1; | |
2108 | ++line_ptr; | |
2109 | if (delta == -8) | |
2110 | { | |
2111 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
2112 | if (delta >= 0x8000) | |
2113 | delta -= 0x10000; | |
2114 | line_ptr += 2; | |
2115 | } | |
2116 | lineno += delta; | |
2117 | if (offset < count * 4) | |
2118 | break; | |
2119 | offset -= count * 4; | |
2120 | } | |
2121 | ||
2122 | /* If fdr_ptr->rss is -1, then this file does not have full symbols, | |
2123 | at least according to gdb/mipsread.c. */ | |
2124 | if (fdr_ptr->rss == -1) | |
2125 | { | |
2126 | *filename_ptr = NULL; | |
2127 | if (pdr.isym == -1) | |
2128 | *functionname_ptr = NULL; | |
2129 | else | |
2130 | { | |
2131 | EXTR proc_ext; | |
2132 | ||
c9668c58 ILT |
2133 | (*debug_swap->swap_ext_in) |
2134 | (abfd, | |
2135 | ((char *) ecoff_data (abfd)->debug_info.external_ext | |
2136 | + pdr.isym * debug_swap->external_ext_size), | |
2137 | &proc_ext); | |
2138 | *functionname_ptr = (ecoff_data (abfd)->debug_info.ssext | |
2139 | + proc_ext.asym.iss); | |
dae31cf5 ILT |
2140 | } |
2141 | } | |
2142 | else | |
2143 | { | |
2144 | SYMR proc_sym; | |
2145 | ||
c9668c58 ILT |
2146 | *filename_ptr = (ecoff_data (abfd)->debug_info.ss |
2147 | + fdr_ptr->issBase | |
2148 | + fdr_ptr->rss); | |
2149 | (*debug_swap->swap_sym_in) | |
2150 | (abfd, | |
2151 | ((char *) ecoff_data (abfd)->debug_info.external_sym | |
2152 | + (fdr_ptr->isymBase + pdr.isym) * debug_swap->external_sym_size), | |
2153 | &proc_sym); | |
2154 | *functionname_ptr = (ecoff_data (abfd)->debug_info.ss | |
dae31cf5 ILT |
2155 | + fdr_ptr->issBase |
2156 | + proc_sym.iss); | |
2157 | } | |
2158 | if (lineno == ilineNil) | |
2159 | lineno = 0; | |
2160 | *retline_ptr = lineno; | |
2161 | return true; | |
2162 | } | |
2163 | \f | |
1bb42b1f ILT |
2164 | /* Copy private BFD data. This is called by objcopy and strip. We |
2165 | use it to copy the ECOFF debugging information from one BFD to the | |
2166 | other. It would be theoretically possible to represent the ECOFF | |
2167 | debugging information in the symbol table. However, it would be a | |
2168 | lot of work, and there would be little gain (gas, gdb, and ld | |
2169 | already access the ECOFF debugging information via the | |
2170 | ecoff_debug_info structure, and that structure would have to be | |
2171 | retained in order to support ECOFF debugging in MIPS ELF). | |
2172 | ||
2173 | The debugging information for the ECOFF external symbols comes from | |
2174 | the symbol table, so this function only handles the other debugging | |
2175 | information. */ | |
2176 | ||
2177 | boolean | |
2178 | ecoff_bfd_copy_private_bfd_data (ibfd, obfd) | |
2179 | bfd *ibfd; | |
2180 | bfd *obfd; | |
2181 | { | |
2182 | struct ecoff_debug_info *iinfo = &ecoff_data (ibfd)->debug_info; | |
2183 | struct ecoff_debug_info *oinfo = &ecoff_data (obfd)->debug_info; | |
8e5090ce | 2184 | register int i; |
1bb42b1f ILT |
2185 | asymbol **sym_ptr_ptr; |
2186 | size_t c; | |
2187 | boolean local; | |
2188 | ||
30f34d07 ILT |
2189 | /* This function is selected based on the input vector. We only |
2190 | want to copy information over if the output BFD also uses ECOFF | |
2191 | format. */ | |
2192 | if (bfd_get_flavour (obfd) != bfd_target_ecoff_flavour) | |
2193 | return true; | |
1bb42b1f | 2194 | |
8e5090ce ILT |
2195 | /* Copy the GP value and the register masks. */ |
2196 | ecoff_data (obfd)->gp = ecoff_data (ibfd)->gp; | |
2197 | ecoff_data (obfd)->gprmask = ecoff_data (ibfd)->gprmask; | |
2198 | ecoff_data (obfd)->fprmask = ecoff_data (ibfd)->fprmask; | |
2199 | for (i = 0; i < 3; i++) | |
2200 | ecoff_data (obfd)->cprmask[i] = ecoff_data (ibfd)->cprmask[i]; | |
2201 | ||
2202 | /* Copy the version stamp. */ | |
1bb42b1f ILT |
2203 | oinfo->symbolic_header.vstamp = iinfo->symbolic_header.vstamp; |
2204 | ||
2205 | /* If there are no symbols, don't copy any debugging information. */ | |
2206 | c = bfd_get_symcount (obfd); | |
2207 | sym_ptr_ptr = bfd_get_outsymbols (obfd); | |
2208 | if (c == 0 || sym_ptr_ptr == (asymbol **) NULL) | |
2209 | return true; | |
2210 | ||
2211 | /* See if there are any local symbols. */ | |
2212 | local = false; | |
2213 | for (; c > 0; c--, sym_ptr_ptr++) | |
2214 | { | |
2215 | if (ecoffsymbol (*sym_ptr_ptr)->local) | |
2216 | { | |
2217 | local = true; | |
2218 | break; | |
2219 | } | |
2220 | } | |
2221 | ||
2222 | if (local) | |
2223 | { | |
2224 | /* There are some local symbols. We just bring over all the | |
2225 | debugging information. FIXME: This is not quite the right | |
2226 | thing to do. If the user has asked us to discard all | |
2227 | debugging information, then we are probably going to wind up | |
2228 | keeping it because there will probably be some local symbol | |
2229 | which objcopy did not discard. We should actually break | |
2230 | apart the debugging information and only keep that which | |
2231 | applies to the symbols we want to keep. */ | |
2232 | oinfo->symbolic_header.ilineMax = iinfo->symbolic_header.ilineMax; | |
2233 | oinfo->symbolic_header.cbLine = iinfo->symbolic_header.cbLine; | |
2234 | oinfo->line = iinfo->line; | |
2235 | ||
2236 | oinfo->symbolic_header.idnMax = iinfo->symbolic_header.idnMax; | |
2237 | oinfo->external_dnr = iinfo->external_dnr; | |
2238 | ||
2239 | oinfo->symbolic_header.ipdMax = iinfo->symbolic_header.ipdMax; | |
2240 | oinfo->external_pdr = iinfo->external_pdr; | |
2241 | ||
2242 | oinfo->symbolic_header.isymMax = iinfo->symbolic_header.isymMax; | |
2243 | oinfo->external_sym = iinfo->external_sym; | |
2244 | ||
2245 | oinfo->symbolic_header.ioptMax = iinfo->symbolic_header.ioptMax; | |
2246 | oinfo->external_opt = iinfo->external_opt; | |
2247 | ||
2248 | oinfo->symbolic_header.iauxMax = iinfo->symbolic_header.iauxMax; | |
2249 | oinfo->external_aux = iinfo->external_aux; | |
2250 | ||
2251 | oinfo->symbolic_header.issMax = iinfo->symbolic_header.issMax; | |
2252 | oinfo->ss = iinfo->ss; | |
2253 | ||
2254 | oinfo->symbolic_header.ifdMax = iinfo->symbolic_header.ifdMax; | |
2255 | oinfo->external_fdr = iinfo->external_fdr; | |
2256 | ||
2257 | oinfo->symbolic_header.crfd = iinfo->symbolic_header.crfd; | |
2258 | oinfo->external_rfd = iinfo->external_rfd; | |
2259 | } | |
2260 | else | |
2261 | { | |
2262 | /* We are discarding all the local symbol information. Look | |
2263 | through the external symbols and remove all references to FDR | |
2264 | or aux information. */ | |
2265 | c = bfd_get_symcount (obfd); | |
2266 | sym_ptr_ptr = bfd_get_outsymbols (obfd); | |
2267 | for (; c > 0; c--, sym_ptr_ptr++) | |
2268 | { | |
2269 | EXTR esym; | |
2270 | ||
2271 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_in)) | |
2272 | (obfd, ecoffsymbol (*sym_ptr_ptr)->native, &esym); | |
2273 | esym.ifd = ifdNil; | |
2274 | esym.asym.index = indexNil; | |
2275 | (*(ecoff_backend (obfd)->debug_swap.swap_ext_out)) | |
2276 | (obfd, &esym, ecoffsymbol (*sym_ptr_ptr)->native); | |
2277 | } | |
2278 | } | |
2279 | ||
2280 | return true; | |
2281 | } | |
2282 | \f | |
dae31cf5 ILT |
2283 | /* Set the architecture. The supported architecture is stored in the |
2284 | backend pointer. We always set the architecture anyhow, since many | |
2285 | callers ignore the return value. */ | |
2286 | ||
2287 | boolean | |
2288 | ecoff_set_arch_mach (abfd, arch, machine) | |
2289 | bfd *abfd; | |
2290 | enum bfd_architecture arch; | |
2291 | unsigned long machine; | |
2292 | { | |
2293 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2294 | return arch == ecoff_backend (abfd)->arch; | |
2295 | } | |
2296 | ||
8e5090ce | 2297 | /* Get the size of the section headers. */ |
dae31cf5 | 2298 | |
728472f1 | 2299 | /*ARGSUSED*/ |
dae31cf5 ILT |
2300 | int |
2301 | ecoff_sizeof_headers (abfd, reloc) | |
2302 | bfd *abfd; | |
2303 | boolean reloc; | |
2304 | { | |
a7853216 ILT |
2305 | asection *current; |
2306 | int c; | |
d6074cdd | 2307 | int ret; |
a7853216 ILT |
2308 | |
2309 | c = 0; | |
2310 | for (current = abfd->sections; | |
2311 | current != (asection *)NULL; | |
2312 | current = current->next) | |
8e5090ce | 2313 | ++c; |
a7853216 | 2314 | |
626f883f ILT |
2315 | ret = (bfd_coff_filhsz (abfd) |
2316 | + bfd_coff_aoutsz (abfd) | |
2317 | + c * bfd_coff_scnhsz (abfd)); | |
2318 | return BFD_ALIGN (ret, 16); | |
a7853216 ILT |
2319 | } |
2320 | ||
8e5090ce | 2321 | /* Get the contents of a section. */ |
a7853216 ILT |
2322 | |
2323 | boolean | |
2324 | ecoff_get_section_contents (abfd, section, location, offset, count) | |
2325 | bfd *abfd; | |
2326 | asection *section; | |
2327 | PTR location; | |
2328 | file_ptr offset; | |
2329 | bfd_size_type count; | |
2330 | { | |
8e5090ce ILT |
2331 | return _bfd_generic_get_section_contents (abfd, section, location, |
2332 | offset, count); | |
dae31cf5 ILT |
2333 | } |
2334 | ||
2335 | /* Calculate the file position for each section, and set | |
2336 | reloc_filepos. */ | |
2337 | ||
2338 | static void | |
2339 | ecoff_compute_section_file_positions (abfd) | |
2340 | bfd *abfd; | |
2341 | { | |
2342 | asection *current; | |
2343 | file_ptr sofar; | |
2344 | file_ptr old_sofar; | |
2345 | boolean first_data; | |
2346 | ||
dae31cf5 ILT |
2347 | sofar = ecoff_sizeof_headers (abfd, false); |
2348 | ||
2349 | first_data = true; | |
2350 | for (current = abfd->sections; | |
2351 | current != (asection *) NULL; | |
2352 | current = current->next) | |
2353 | { | |
3f048f7f ILT |
2354 | unsigned int alignment_power; |
2355 | ||
dae31cf5 | 2356 | /* Only deal with sections which have contents */ |
8e5090ce | 2357 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) == 0) |
dae31cf5 ILT |
2358 | continue; |
2359 | ||
3f048f7f ILT |
2360 | /* For the Alpha ECOFF .pdata section the lnnoptr field is |
2361 | supposed to indicate the number of .pdata entries that are | |
2362 | really in the section. Each entry is 8 bytes. We store this | |
2363 | away in line_filepos before increasing the section size. */ | |
2364 | if (strcmp (current->name, _PDATA) != 0) | |
2365 | alignment_power = current->alignment_power; | |
2366 | else | |
2367 | { | |
2368 | current->line_filepos = current->_raw_size / 8; | |
2369 | alignment_power = 4; | |
2370 | } | |
2371 | ||
dae31cf5 ILT |
2372 | /* On Ultrix, the data sections in an executable file must be |
2373 | aligned to a page boundary within the file. This does not | |
2374 | affect the section size, though. FIXME: Does this work for | |
c9668c58 ILT |
2375 | other platforms? It requires some modification for the |
2376 | Alpha, because .rdata on the Alpha goes with the text, not | |
2377 | the data. */ | |
dae31cf5 ILT |
2378 | if ((abfd->flags & EXEC_P) != 0 |
2379 | && (abfd->flags & D_PAGED) != 0 | |
2380 | && first_data != false | |
c9668c58 ILT |
2381 | && (current->flags & SEC_CODE) == 0 |
2382 | && (! ecoff_backend (abfd)->rdata_in_text | |
2383 | || strcmp (current->name, _RDATA) != 0) | |
2384 | && strcmp (current->name, _PDATA) != 0) | |
dae31cf5 ILT |
2385 | { |
2386 | const bfd_vma round = ecoff_backend (abfd)->round; | |
2387 | ||
2388 | sofar = (sofar + round - 1) &~ (round - 1); | |
2389 | first_data = false; | |
2390 | } | |
f8ee1ebb ILT |
2391 | else if (strcmp (current->name, _LIB) == 0) |
2392 | { | |
2393 | const bfd_vma round = ecoff_backend (abfd)->round; | |
2394 | /* On Irix 4, the location of contents of the .lib section | |
2395 | from a shared library section is also rounded up to a | |
2396 | page boundary. */ | |
2397 | ||
2398 | sofar = (sofar + round - 1) &~ (round - 1); | |
2399 | } | |
dae31cf5 ILT |
2400 | |
2401 | /* Align the sections in the file to the same boundary on | |
2402 | which they are aligned in virtual memory. */ | |
2403 | old_sofar = sofar; | |
3f048f7f | 2404 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
dae31cf5 ILT |
2405 | |
2406 | current->filepos = sofar; | |
2407 | ||
2408 | sofar += current->_raw_size; | |
2409 | ||
2410 | /* make sure that this section is of the right size too */ | |
2411 | old_sofar = sofar; | |
3f048f7f | 2412 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
dae31cf5 ILT |
2413 | current->_raw_size += sofar - old_sofar; |
2414 | } | |
2415 | ||
2416 | ecoff_data (abfd)->reloc_filepos = sofar; | |
2417 | } | |
2418 | ||
966e0a16 | 2419 | /* Determine the location of the relocs for all the sections in the |
3f048f7f ILT |
2420 | output file, as well as the location of the symbolic debugging |
2421 | information. */ | |
966e0a16 ILT |
2422 | |
2423 | static bfd_size_type | |
2424 | ecoff_compute_reloc_file_positions (abfd) | |
2425 | bfd *abfd; | |
2426 | { | |
2427 | const bfd_size_type external_reloc_size = | |
2428 | ecoff_backend (abfd)->external_reloc_size; | |
2429 | file_ptr reloc_base; | |
2430 | bfd_size_type reloc_size; | |
2431 | asection *current; | |
3f048f7f | 2432 | file_ptr sym_base; |
966e0a16 ILT |
2433 | |
2434 | if (! abfd->output_has_begun) | |
3f048f7f ILT |
2435 | { |
2436 | ecoff_compute_section_file_positions (abfd); | |
2437 | abfd->output_has_begun = true; | |
2438 | } | |
966e0a16 ILT |
2439 | |
2440 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
2441 | ||
2442 | reloc_size = 0; | |
2443 | for (current = abfd->sections; | |
2444 | current != (asection *)NULL; | |
2445 | current = current->next) | |
2446 | { | |
966e0a16 ILT |
2447 | if (current->reloc_count == 0) |
2448 | current->rel_filepos = 0; | |
2449 | else | |
2450 | { | |
2451 | bfd_size_type relsize; | |
2452 | ||
2453 | current->rel_filepos = reloc_base; | |
2454 | relsize = current->reloc_count * external_reloc_size; | |
2455 | reloc_size += relsize; | |
2456 | reloc_base += relsize; | |
2457 | } | |
2458 | } | |
2459 | ||
3f048f7f ILT |
2460 | sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size; |
2461 | ||
2462 | /* At least on Ultrix, the symbol table of an executable file must | |
2463 | be aligned to a page boundary. FIXME: Is this true on other | |
2464 | platforms? */ | |
2465 | if ((abfd->flags & EXEC_P) != 0 | |
2466 | && (abfd->flags & D_PAGED) != 0) | |
2467 | sym_base = ((sym_base + ecoff_backend (abfd)->round - 1) | |
2468 | &~ (ecoff_backend (abfd)->round - 1)); | |
2469 | ||
2470 | ecoff_data (abfd)->sym_filepos = sym_base; | |
2471 | ||
966e0a16 ILT |
2472 | return reloc_size; |
2473 | } | |
2474 | ||
8e5090ce | 2475 | /* Set the contents of a section. */ |
dae31cf5 ILT |
2476 | |
2477 | boolean | |
2478 | ecoff_set_section_contents (abfd, section, location, offset, count) | |
2479 | bfd *abfd; | |
2480 | asection *section; | |
2481 | PTR location; | |
2482 | file_ptr offset; | |
2483 | bfd_size_type count; | |
2484 | { | |
966e0a16 ILT |
2485 | /* This must be done first, because bfd_set_section_contents is |
2486 | going to set output_has_begun to true. */ | |
dae31cf5 ILT |
2487 | if (abfd->output_has_begun == false) |
2488 | ecoff_compute_section_file_positions (abfd); | |
2489 | ||
f8ee1ebb ILT |
2490 | /* If this is a .lib section, bump the vma address so that it winds |
2491 | up being the number of .lib sections output. This is right for | |
2492 | Irix 4. Ian Taylor <ian@cygnus.com>. */ | |
2493 | if (strcmp (section->name, _LIB) == 0) | |
2494 | ++section->vma; | |
2495 | ||
966e0a16 ILT |
2496 | if (count == 0) |
2497 | return true; | |
2498 | ||
8e5090ce ILT |
2499 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 |
2500 | || bfd_write (location, 1, count, abfd) != count) | |
2501 | return false; | |
2502 | ||
2503 | return true; | |
2504 | } | |
2505 | ||
2506 | /* Get the GP value for an ECOFF file. This is a hook used by | |
2507 | nlmconv. */ | |
2508 | ||
2509 | bfd_vma | |
2510 | bfd_ecoff_get_gp_value (abfd) | |
2511 | bfd *abfd; | |
2512 | { | |
2513 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2514 | || bfd_get_format (abfd) != bfd_object) | |
a7853216 | 2515 | { |
8e5090ce ILT |
2516 | bfd_set_error (bfd_error_invalid_operation); |
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | return ecoff_data (abfd)->gp; | |
2521 | } | |
a7853216 | 2522 | |
8e5090ce ILT |
2523 | /* Set the GP value for an ECOFF file. This is a hook used by the |
2524 | assembler. */ | |
2525 | ||
2526 | boolean | |
2527 | bfd_ecoff_set_gp_value (abfd, gp_value) | |
2528 | bfd *abfd; | |
2529 | bfd_vma gp_value; | |
2530 | { | |
2531 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2532 | || bfd_get_format (abfd) != bfd_object) | |
2533 | { | |
2534 | bfd_set_error (bfd_error_invalid_operation); | |
2535 | return false; | |
2536 | } | |
a7853216 | 2537 | |
8e5090ce | 2538 | ecoff_data (abfd)->gp = gp_value; |
a7853216 | 2539 | |
8e5090ce ILT |
2540 | return true; |
2541 | } | |
a7853216 | 2542 | |
8e5090ce ILT |
2543 | /* Set the register masks for an ECOFF file. This is a hook used by |
2544 | the assembler. */ | |
2545 | ||
2546 | boolean | |
2547 | bfd_ecoff_set_regmasks (abfd, gprmask, fprmask, cprmask) | |
2548 | bfd *abfd; | |
2549 | unsigned long gprmask; | |
2550 | unsigned long fprmask; | |
2551 | unsigned long *cprmask; | |
2552 | { | |
2553 | ecoff_data_type *tdata; | |
2554 | ||
2555 | if (bfd_get_flavour (abfd) != bfd_target_ecoff_flavour | |
2556 | || bfd_get_format (abfd) != bfd_object) | |
2557 | { | |
2558 | bfd_set_error (bfd_error_invalid_operation); | |
2559 | return false; | |
a7853216 ILT |
2560 | } |
2561 | ||
8e5090ce ILT |
2562 | tdata = ecoff_data (abfd); |
2563 | tdata->gprmask = gprmask; | |
2564 | tdata->fprmask = fprmask; | |
2565 | if (cprmask != (unsigned long *) NULL) | |
2566 | { | |
2567 | register int i; | |
2568 | ||
2569 | for (i = 0; i < 3; i++) | |
2570 | tdata->cprmask[i] = cprmask[i]; | |
2571 | } | |
dae31cf5 ILT |
2572 | |
2573 | return true; | |
2574 | } | |
2575 | ||
966e0a16 ILT |
2576 | /* Get ECOFF EXTR information for an external symbol. This function |
2577 | is passed to bfd_ecoff_debug_externals. */ | |
dae31cf5 | 2578 | |
966e0a16 ILT |
2579 | static boolean |
2580 | ecoff_get_extr (sym, esym) | |
2581 | asymbol *sym; | |
2582 | EXTR *esym; | |
dae31cf5 | 2583 | { |
966e0a16 ILT |
2584 | ecoff_symbol_type *ecoff_sym_ptr; |
2585 | bfd *input_bfd; | |
2586 | ||
966e0a16 ILT |
2587 | if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour |
2588 | || ecoffsymbol (sym)->native == NULL) | |
2589 | { | |
1bb42b1f ILT |
2590 | /* Don't include debugging, local, or section symbols. */ |
2591 | if ((sym->flags & BSF_DEBUGGING) != 0 | |
2592 | || (sym->flags & BSF_LOCAL) != 0 | |
2593 | || (sym->flags & BSF_SECTION_SYM) != 0) | |
2594 | return false; | |
2595 | ||
966e0a16 ILT |
2596 | esym->jmptbl = 0; |
2597 | esym->cobol_main = 0; | |
2598 | esym->weakext = 0; | |
2599 | esym->reserved = 0; | |
2600 | esym->ifd = ifdNil; | |
2601 | /* FIXME: we can do better than this for st and sc. */ | |
2602 | esym->asym.st = stGlobal; | |
2603 | esym->asym.sc = scAbs; | |
2604 | esym->asym.reserved = 0; | |
2605 | esym->asym.index = indexNil; | |
2606 | return true; | |
2607 | } | |
2608 | ||
2609 | ecoff_sym_ptr = ecoffsymbol (sym); | |
2610 | ||
2611 | if (ecoff_sym_ptr->local) | |
1bb42b1f | 2612 | return false; |
966e0a16 ILT |
2613 | |
2614 | input_bfd = bfd_asymbol_bfd (sym); | |
2615 | (*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in)) | |
2616 | (input_bfd, ecoff_sym_ptr->native, esym); | |
2617 | ||
2618 | /* If the symbol was defined by the linker, then esym will be | |
2619 | undefined but sym will not be. Get a better class for such a | |
2620 | symbol. */ | |
2621 | if ((esym->asym.sc == scUndefined | |
2622 | || esym->asym.sc == scSUndefined) | |
2623 | && bfd_get_section (sym) != &bfd_und_section) | |
2624 | esym->asym.sc = scAbs; | |
2625 | ||
2626 | /* Adjust the FDR index for the symbol by that used for the input | |
2627 | BFD. */ | |
3f048f7f ILT |
2628 | if (esym->ifd != -1) |
2629 | { | |
2630 | struct ecoff_debug_info *input_debug; | |
2631 | ||
2632 | input_debug = &ecoff_data (input_bfd)->debug_info; | |
2633 | BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax); | |
2634 | if (input_debug->ifdmap != (RFDT *) NULL) | |
2635 | esym->ifd = input_debug->ifdmap[esym->ifd]; | |
2636 | } | |
966e0a16 ILT |
2637 | |
2638 | return true; | |
2639 | } | |
2640 | ||
2641 | /* Set the external symbol index. This routine is passed to | |
2642 | bfd_ecoff_debug_externals. */ | |
2643 | ||
2644 | static void | |
2645 | ecoff_set_index (sym, indx) | |
2646 | asymbol *sym; | |
2647 | bfd_size_type indx; | |
2648 | { | |
2649 | ecoff_set_sym_index (sym, indx); | |
2650 | } | |
2651 | ||
2652 | /* Write out an ECOFF file. */ | |
2653 | ||
2654 | boolean | |
2655 | ecoff_write_object_contents (abfd) | |
2656 | bfd *abfd; | |
2657 | { | |
2658 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2659 | const bfd_vma round = backend->round; | |
2660 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); | |
2661 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); | |
2662 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); | |
2663 | const bfd_size_type external_hdr_size | |
2664 | = backend->debug_swap.external_hdr_size; | |
2665 | const bfd_size_type external_reloc_size = backend->external_reloc_size; | |
2666 | void (* const adjust_reloc_out) PARAMS ((bfd *, | |
2667 | const arelent *, | |
2668 | struct internal_reloc *)) | |
c9668c58 | 2669 | = backend->adjust_reloc_out; |
dae31cf5 ILT |
2670 | void (* const swap_reloc_out) PARAMS ((bfd *, |
2671 | const struct internal_reloc *, | |
2672 | PTR)) | |
2673 | = backend->swap_reloc_out; | |
8d12f138 ILT |
2674 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; |
2675 | HDRR * const symhdr = &debug->symbolic_header; | |
dae31cf5 ILT |
2676 | asection *current; |
2677 | unsigned int count; | |
966e0a16 | 2678 | bfd_size_type reloc_size; |
22a71fef ILT |
2679 | bfd_size_type text_size; |
2680 | bfd_vma text_start; | |
1788b1bd | 2681 | boolean set_text_start; |
22a71fef ILT |
2682 | bfd_size_type data_size; |
2683 | bfd_vma data_start; | |
1788b1bd | 2684 | boolean set_data_start; |
22a71fef | 2685 | bfd_size_type bss_size; |
80425e6c JK |
2686 | PTR buff = NULL; |
2687 | PTR reloc_buff = NULL; | |
dae31cf5 ILT |
2688 | struct internal_filehdr internal_f; |
2689 | struct internal_aouthdr internal_a; | |
2690 | int i; | |
2691 | ||
966e0a16 ILT |
2692 | /* Determine where the sections and relocs will go in the output |
2693 | file. */ | |
2694 | reloc_size = ecoff_compute_reloc_file_positions (abfd); | |
dae31cf5 ILT |
2695 | |
2696 | count = 1; | |
dae31cf5 ILT |
2697 | for (current = abfd->sections; |
2698 | current != (asection *)NULL; | |
2699 | current = current->next) | |
2700 | { | |
dae31cf5 ILT |
2701 | current->target_index = count; |
2702 | ++count; | |
dae31cf5 ILT |
2703 | } |
2704 | ||
dae31cf5 ILT |
2705 | if ((abfd->flags & D_PAGED) != 0) |
2706 | text_size = ecoff_sizeof_headers (abfd, false); | |
2707 | else | |
2708 | text_size = 0; | |
2709 | text_start = 0; | |
1788b1bd | 2710 | set_text_start = false; |
dae31cf5 ILT |
2711 | data_size = 0; |
2712 | data_start = 0; | |
1788b1bd | 2713 | set_data_start = false; |
dae31cf5 ILT |
2714 | bss_size = 0; |
2715 | ||
2716 | /* Write section headers to the file. */ | |
2717 | ||
80425e6c JK |
2718 | /* Allocate buff big enough to hold a section header, |
2719 | file header, or a.out header. */ | |
2720 | { | |
2721 | bfd_size_type siz; | |
2722 | siz = scnhsz; | |
2723 | if (siz < filhsz) | |
2724 | siz = filhsz; | |
2725 | if (siz < aoutsz) | |
2726 | siz = aoutsz; | |
2727 | buff = (PTR) malloc (siz); | |
2728 | if (buff == NULL) | |
2729 | { | |
2730 | bfd_set_error (bfd_error_no_memory); | |
2731 | goto error_return; | |
2732 | } | |
2733 | } | |
2734 | ||
dae31cf5 ILT |
2735 | internal_f.f_nscns = 0; |
2736 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) | |
80425e6c | 2737 | goto error_return; |
dae31cf5 ILT |
2738 | for (current = abfd->sections; |
2739 | current != (asection *) NULL; | |
2740 | current = current->next) | |
2741 | { | |
2742 | struct internal_scnhdr section; | |
2743 | bfd_vma vma; | |
2744 | ||
dae31cf5 ILT |
2745 | ++internal_f.f_nscns; |
2746 | ||
2747 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
2748 | ||
f8ee1ebb | 2749 | /* This seems to be correct for Irix 4 shared libraries. */ |
dae31cf5 ILT |
2750 | vma = bfd_get_section_vma (abfd, current); |
2751 | if (strcmp (current->name, _LIB) == 0) | |
2752 | section.s_vaddr = 0; | |
2753 | else | |
2754 | section.s_vaddr = vma; | |
2755 | ||
2756 | section.s_paddr = vma; | |
2757 | section.s_size = bfd_get_section_size_before_reloc (current); | |
2758 | ||
e544ed4f ILT |
2759 | /* If this section is unloadable then the scnptr will be 0. */ |
2760 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
dae31cf5 ILT |
2761 | section.s_scnptr = 0; |
2762 | else | |
2763 | section.s_scnptr = current->filepos; | |
2764 | section.s_relptr = current->rel_filepos; | |
2765 | ||
2766 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
2767 | object file produced by the assembler is supposed to point to | |
2768 | information about how much room is required by objects of | |
2769 | various different sizes. I think this only matters if we | |
2770 | want the linker to compute the best size to use, or | |
2771 | something. I don't know what happens if the information is | |
2772 | not present. */ | |
3f048f7f ILT |
2773 | if (strcmp (current->name, _PDATA) != 0) |
2774 | section.s_lnnoptr = 0; | |
2775 | else | |
2776 | { | |
2777 | /* The Alpha ECOFF .pdata section uses the lnnoptr field to | |
2778 | hold the number of entries in the section (each entry is | |
2779 | 8 bytes). We stored this in the line_filepos field in | |
2780 | ecoff_compute_section_file_positions. */ | |
2781 | section.s_lnnoptr = current->line_filepos; | |
2782 | } | |
dae31cf5 ILT |
2783 | |
2784 | section.s_nreloc = current->reloc_count; | |
2785 | section.s_nlnno = 0; | |
2786 | section.s_flags = ecoff_sec_to_styp_flags (current->name, | |
2787 | current->flags); | |
2788 | ||
2789 | bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff); | |
2790 | if (bfd_write (buff, 1, scnhsz, abfd) != scnhsz) | |
80425e6c | 2791 | goto error_return; |
dae31cf5 | 2792 | |
c9668c58 ILT |
2793 | if ((section.s_flags & STYP_TEXT) != 0 |
2794 | || ((section.s_flags & STYP_RDATA) != 0 | |
2795 | && backend->rdata_in_text) | |
2796 | || strcmp (current->name, _PDATA) == 0) | |
dae31cf5 ILT |
2797 | { |
2798 | text_size += bfd_get_section_size_before_reloc (current); | |
1788b1bd ILT |
2799 | if (! set_text_start || text_start > vma) |
2800 | { | |
2801 | text_start = vma; | |
2802 | set_text_start = true; | |
2803 | } | |
dae31cf5 ILT |
2804 | } |
2805 | else if ((section.s_flags & STYP_RDATA) != 0 | |
2806 | || (section.s_flags & STYP_DATA) != 0 | |
c9668c58 | 2807 | || (section.s_flags & STYP_LITA) != 0 |
dae31cf5 ILT |
2808 | || (section.s_flags & STYP_LIT8) != 0 |
2809 | || (section.s_flags & STYP_LIT4) != 0 | |
966e0a16 ILT |
2810 | || (section.s_flags & STYP_SDATA) != 0 |
2811 | || strcmp (current->name, _XDATA) == 0) | |
dae31cf5 ILT |
2812 | { |
2813 | data_size += bfd_get_section_size_before_reloc (current); | |
1788b1bd ILT |
2814 | if (! set_data_start || data_start > vma) |
2815 | { | |
2816 | data_start = vma; | |
2817 | set_data_start = true; | |
2818 | } | |
dae31cf5 ILT |
2819 | } |
2820 | else if ((section.s_flags & STYP_BSS) != 0 | |
2821 | || (section.s_flags & STYP_SBSS) != 0) | |
2822 | bss_size += bfd_get_section_size_before_reloc (current); | |
f8ee1ebb ILT |
2823 | else if ((section.s_flags & STYP_ECOFF_LIB) != 0) |
2824 | /* Do nothing */ ; | |
966e0a16 ILT |
2825 | else |
2826 | abort (); | |
dae31cf5 ILT |
2827 | } |
2828 | ||
2829 | /* Set up the file header. */ | |
2830 | ||
a7853216 | 2831 | internal_f.f_magic = ecoff_get_magic (abfd); |
dae31cf5 ILT |
2832 | |
2833 | /* We will NOT put a fucking timestamp in the header here. Every | |
2834 | time you put it back, I will come in and take it out again. I'm | |
2835 | sorry. This field does not belong here. We fill it with a 0 so | |
2836 | it compares the same but is not a reasonable time. -- | |
2837 | gnu@cygnus.com. */ | |
2838 | internal_f.f_timdat = 0; | |
2839 | ||
2840 | if (bfd_get_symcount (abfd) != 0) | |
2841 | { | |
2842 | /* The ECOFF f_nsyms field is not actually the number of | |
2843 | symbols, it's the size of symbolic information header. */ | |
2844 | internal_f.f_nsyms = external_hdr_size; | |
3f048f7f | 2845 | internal_f.f_symptr = ecoff_data (abfd)->sym_filepos; |
dae31cf5 ILT |
2846 | } |
2847 | else | |
2848 | { | |
2849 | internal_f.f_nsyms = 0; | |
2850 | internal_f.f_symptr = 0; | |
2851 | } | |
2852 | ||
2853 | internal_f.f_opthdr = aoutsz; | |
2854 | ||
2855 | internal_f.f_flags = F_LNNO; | |
2856 | if (reloc_size == 0) | |
2857 | internal_f.f_flags |= F_RELFLG; | |
2858 | if (bfd_get_symcount (abfd) == 0) | |
2859 | internal_f.f_flags |= F_LSYMS; | |
2860 | if (abfd->flags & EXEC_P) | |
2861 | internal_f.f_flags |= F_EXEC; | |
2862 | ||
2863 | if (! abfd->xvec->byteorder_big_p) | |
2864 | internal_f.f_flags |= F_AR32WR; | |
2865 | else | |
2866 | internal_f.f_flags |= F_AR32W; | |
2867 | ||
2868 | /* Set up the ``optional'' header. */ | |
2869 | if ((abfd->flags & D_PAGED) != 0) | |
2870 | internal_a.magic = ECOFF_AOUT_ZMAGIC; | |
2871 | else | |
2872 | internal_a.magic = ECOFF_AOUT_OMAGIC; | |
2873 | ||
3f048f7f ILT |
2874 | /* FIXME: Is this really correct? */ |
2875 | internal_a.vstamp = symhdr->vstamp; | |
dae31cf5 ILT |
2876 | |
2877 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
2878 | FIXME: Is this true on other platforms? */ | |
2879 | if ((abfd->flags & D_PAGED) != 0) | |
2880 | { | |
2881 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); | |
2882 | internal_a.text_start = text_start &~ (round - 1); | |
2883 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); | |
2884 | internal_a.data_start = data_start &~ (round - 1); | |
2885 | } | |
2886 | else | |
2887 | { | |
2888 | internal_a.tsize = text_size; | |
2889 | internal_a.text_start = text_start; | |
2890 | internal_a.dsize = data_size; | |
2891 | internal_a.data_start = data_start; | |
2892 | } | |
2893 | ||
2894 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
2895 | are at the end of the data section. The bsize field in the | |
2896 | optional header records how many bss bytes are required beyond | |
2897 | those in the data section. The value is not rounded to a page | |
2898 | boundary. */ | |
2899 | if (bss_size < internal_a.dsize - data_size) | |
2900 | bss_size = 0; | |
2901 | else | |
2902 | bss_size -= internal_a.dsize - data_size; | |
2903 | internal_a.bsize = bss_size; | |
2904 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
2905 | ||
2906 | internal_a.entry = bfd_get_start_address (abfd); | |
2907 | ||
2908 | internal_a.gp_value = ecoff_data (abfd)->gp; | |
2909 | ||
2910 | internal_a.gprmask = ecoff_data (abfd)->gprmask; | |
48edba81 | 2911 | internal_a.fprmask = ecoff_data (abfd)->fprmask; |
dae31cf5 ILT |
2912 | for (i = 0; i < 4; i++) |
2913 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
2914 | ||
2915 | /* Write out the file header and the optional header. */ | |
2916 | ||
2917 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
80425e6c | 2918 | goto error_return; |
dae31cf5 | 2919 | |
dae31cf5 ILT |
2920 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff); |
2921 | if (bfd_write (buff, 1, filhsz, abfd) != filhsz) | |
80425e6c | 2922 | goto error_return; |
dae31cf5 | 2923 | |
dae31cf5 ILT |
2924 | bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff); |
2925 | if (bfd_write (buff, 1, aoutsz, abfd) != aoutsz) | |
80425e6c | 2926 | goto error_return; |
dae31cf5 | 2927 | |
8d12f138 | 2928 | /* Build the external symbol information. This must be done before |
469984d1 ILT |
2929 | writing out the relocs so that we know the symbol indices. We |
2930 | don't do this if this BFD was created by the backend linker, | |
2931 | since it will have already handled the symbols and relocs. */ | |
2932 | if (! ecoff_data (abfd)->linker) | |
dae31cf5 | 2933 | { |
966e0a16 ILT |
2934 | symhdr->iextMax = 0; |
2935 | symhdr->issExtMax = 0; | |
2936 | debug->external_ext = debug->external_ext_end = NULL; | |
2937 | debug->ssext = debug->ssext_end = NULL; | |
2938 | if (bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap, | |
2939 | (((abfd->flags & EXEC_P) == 0) | |
2940 | ? true : false), | |
2941 | ecoff_get_extr, ecoff_set_index) | |
2942 | == false) | |
80425e6c | 2943 | goto error_return; |
dae31cf5 | 2944 | |
966e0a16 ILT |
2945 | /* Write out the relocs. */ |
2946 | for (current = abfd->sections; | |
2947 | current != (asection *) NULL; | |
2948 | current = current->next) | |
dae31cf5 | 2949 | { |
966e0a16 ILT |
2950 | arelent **reloc_ptr_ptr; |
2951 | arelent **reloc_end; | |
2952 | char *out_ptr; | |
dae31cf5 | 2953 | |
966e0a16 ILT |
2954 | if (current->reloc_count == 0) |
2955 | continue; | |
dae31cf5 | 2956 | |
80425e6c JK |
2957 | reloc_buff = |
2958 | bfd_alloc (abfd, current->reloc_count * external_reloc_size); | |
2959 | if (reloc_buff == NULL) | |
dae31cf5 | 2960 | { |
d1ad85a6 | 2961 | bfd_set_error (bfd_error_no_memory); |
80425e6c | 2962 | goto error_return; |
dae31cf5 | 2963 | } |
966e0a16 ILT |
2964 | |
2965 | reloc_ptr_ptr = current->orelocation; | |
2966 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
80425e6c | 2967 | out_ptr = (char *) reloc_buff; |
966e0a16 ILT |
2968 | for (; |
2969 | reloc_ptr_ptr < reloc_end; | |
2970 | reloc_ptr_ptr++, out_ptr += external_reloc_size) | |
dae31cf5 | 2971 | { |
966e0a16 ILT |
2972 | arelent *reloc; |
2973 | asymbol *sym; | |
2974 | struct internal_reloc in; | |
2975 | ||
68241b2b | 2976 | memset ((PTR) &in, 0, sizeof in); |
966e0a16 ILT |
2977 | |
2978 | reloc = *reloc_ptr_ptr; | |
2979 | sym = *reloc->sym_ptr_ptr; | |
2980 | ||
2981 | in.r_vaddr = (reloc->address | |
2982 | + bfd_get_section_vma (abfd, current)); | |
2983 | in.r_type = reloc->howto->type; | |
2984 | ||
2985 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
2986 | { | |
2987 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
2988 | in.r_extern = 1; | |
2989 | } | |
dae31cf5 | 2990 | else |
966e0a16 ILT |
2991 | { |
2992 | CONST char *name; | |
2993 | ||
2994 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
2995 | if (strcmp (name, ".text") == 0) | |
2996 | in.r_symndx = RELOC_SECTION_TEXT; | |
2997 | else if (strcmp (name, ".rdata") == 0) | |
2998 | in.r_symndx = RELOC_SECTION_RDATA; | |
2999 | else if (strcmp (name, ".data") == 0) | |
3000 | in.r_symndx = RELOC_SECTION_DATA; | |
3001 | else if (strcmp (name, ".sdata") == 0) | |
3002 | in.r_symndx = RELOC_SECTION_SDATA; | |
3003 | else if (strcmp (name, ".sbss") == 0) | |
3004 | in.r_symndx = RELOC_SECTION_SBSS; | |
3005 | else if (strcmp (name, ".bss") == 0) | |
3006 | in.r_symndx = RELOC_SECTION_BSS; | |
3007 | else if (strcmp (name, ".init") == 0) | |
3008 | in.r_symndx = RELOC_SECTION_INIT; | |
3009 | else if (strcmp (name, ".lit8") == 0) | |
3010 | in.r_symndx = RELOC_SECTION_LIT8; | |
3011 | else if (strcmp (name, ".lit4") == 0) | |
3012 | in.r_symndx = RELOC_SECTION_LIT4; | |
3013 | else if (strcmp (name, ".xdata") == 0) | |
3014 | in.r_symndx = RELOC_SECTION_XDATA; | |
3015 | else if (strcmp (name, ".pdata") == 0) | |
3016 | in.r_symndx = RELOC_SECTION_PDATA; | |
3017 | else if (strcmp (name, ".fini") == 0) | |
3018 | in.r_symndx = RELOC_SECTION_FINI; | |
3019 | else if (strcmp (name, ".lita") == 0) | |
3020 | in.r_symndx = RELOC_SECTION_LITA; | |
3021 | else if (strcmp (name, "*ABS*") == 0) | |
3022 | in.r_symndx = RELOC_SECTION_ABS; | |
3023 | else | |
3024 | abort (); | |
3025 | in.r_extern = 0; | |
3026 | } | |
3027 | ||
3028 | (*adjust_reloc_out) (abfd, reloc, &in); | |
3029 | ||
3030 | (*swap_reloc_out) (abfd, &in, (PTR) out_ptr); | |
dae31cf5 ILT |
3031 | } |
3032 | ||
966e0a16 | 3033 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) |
80425e6c JK |
3034 | goto error_return; |
3035 | if (bfd_write (reloc_buff, | |
3036 | external_reloc_size, current->reloc_count, abfd) | |
966e0a16 | 3037 | != external_reloc_size * current->reloc_count) |
80425e6c JK |
3038 | goto error_return; |
3039 | bfd_release (abfd, reloc_buff); | |
3040 | reloc_buff = NULL; | |
dae31cf5 | 3041 | } |
dae31cf5 | 3042 | |
3f048f7f ILT |
3043 | /* Write out the symbolic debugging information. */ |
3044 | if (bfd_get_symcount (abfd) > 0) | |
3045 | { | |
3046 | /* Write out the debugging information. */ | |
3047 | if (bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap, | |
3048 | ecoff_data (abfd)->sym_filepos) | |
3049 | == false) | |
80425e6c | 3050 | goto error_return; |
3f048f7f | 3051 | } |
626f883f | 3052 | } |
dae31cf5 | 3053 | |
626f883f ILT |
3054 | /* The .bss section of a demand paged executable must receive an |
3055 | entire page. If there are symbols, the symbols will start on the | |
3056 | next page. If there are no symbols, we must fill out the page by | |
3057 | hand. */ | |
3058 | if (bfd_get_symcount (abfd) == 0 | |
3059 | && (abfd->flags & EXEC_P) != 0 | |
3060 | && (abfd->flags & D_PAGED) != 0) | |
3061 | { | |
3062 | char c; | |
3063 | ||
3064 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
3065 | SEEK_SET) != 0) | |
80425e6c | 3066 | goto error_return; |
626f883f ILT |
3067 | if (bfd_read (&c, 1, 1, abfd) == 0) |
3068 | c = 0; | |
3069 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
3070 | SEEK_SET) != 0) | |
80425e6c | 3071 | goto error_return; |
626f883f | 3072 | if (bfd_write (&c, 1, 1, abfd) != 1) |
80425e6c | 3073 | goto error_return; |
dae31cf5 ILT |
3074 | } |
3075 | ||
80425e6c JK |
3076 | if (reloc_buff != NULL) |
3077 | bfd_release (abfd, reloc_buff); | |
3078 | if (buff != NULL) | |
3079 | free (buff); | |
dae31cf5 | 3080 | return true; |
80425e6c JK |
3081 | error_return: |
3082 | if (reloc_buff != NULL) | |
3083 | bfd_release (abfd, reloc_buff); | |
3084 | if (buff != NULL) | |
3085 | free (buff); | |
3086 | return false; | |
dae31cf5 ILT |
3087 | } |
3088 | \f | |
3089 | /* Archive handling. ECOFF uses what appears to be a unique type of | |
b59f0276 ILT |
3090 | archive header (armap). The byte ordering of the armap and the |
3091 | contents are encoded in the name of the armap itself. At least for | |
3092 | now, we only support archives with the same byte ordering in the | |
3093 | armap and the contents. | |
dae31cf5 ILT |
3094 | |
3095 | The first four bytes in the armap are the number of symbol | |
3096 | definitions. This is always a power of two. | |
3097 | ||
3098 | This is followed by the symbol definitions. Each symbol definition | |
3099 | occupies 8 bytes. The first four bytes are the offset from the | |
3100 | start of the armap strings to the null-terminated string naming | |
3101 | this symbol. The second four bytes are the file offset to the | |
3102 | archive member which defines this symbol. If the second four bytes | |
3103 | are 0, then this is not actually a symbol definition, and it should | |
3104 | be ignored. | |
3105 | ||
3106 | The symbols are hashed into the armap with a closed hashing scheme. | |
3107 | See the functions below for the details of the algorithm. | |
3108 | ||
dae31cf5 ILT |
3109 | After the symbol definitions comes four bytes holding the size of |
3110 | the string table, followed by the string table itself. */ | |
3111 | ||
3112 | /* The name of an archive headers looks like this: | |
3113 | __________E[BL]E[BL]_ (with a trailing space). | |
3114 | The trailing space is changed to an X if the archive is changed to | |
48edba81 ILT |
3115 | indicate that the armap is out of date. |
3116 | ||
3117 | The Alpha seems to use ________64E[BL]E[BL]_. */ | |
dae31cf5 ILT |
3118 | |
3119 | #define ARMAP_BIG_ENDIAN 'B' | |
3120 | #define ARMAP_LITTLE_ENDIAN 'L' | |
3121 | #define ARMAP_MARKER 'E' | |
48edba81 | 3122 | #define ARMAP_START_LENGTH 10 |
dae31cf5 ILT |
3123 | #define ARMAP_HEADER_MARKER_INDEX 10 |
3124 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
3125 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
3126 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
3127 | #define ARMAP_END_INDEX 14 | |
3128 | #define ARMAP_END "_ " | |
3129 | ||
3130 | /* This is a magic number used in the hashing algorithm. */ | |
3131 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
3132 | ||
3133 | /* This returns the hash value to use for a string. It also sets | |
3134 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
3135 | is the number of entries in the hash table, and HLOG is the log | |
3136 | base 2 of SIZE. */ | |
3137 | ||
3138 | static unsigned int | |
3139 | ecoff_armap_hash (s, rehash, size, hlog) | |
3140 | CONST char *s; | |
3141 | unsigned int *rehash; | |
3142 | unsigned int size; | |
3143 | unsigned int hlog; | |
3144 | { | |
3145 | unsigned int hash; | |
3146 | ||
3147 | hash = *s++; | |
3148 | while (*s != '\0') | |
3149 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
3150 | hash *= ARMAP_HASH_MAGIC; | |
3151 | *rehash = (hash & (size - 1)) | 1; | |
3152 | return hash >> (32 - hlog); | |
3153 | } | |
3154 | ||
3155 | /* Read in the armap. */ | |
3156 | ||
3157 | boolean | |
3158 | ecoff_slurp_armap (abfd) | |
3159 | bfd *abfd; | |
3160 | { | |
3161 | char nextname[17]; | |
3162 | unsigned int i; | |
3163 | struct areltdata *mapdata; | |
3164 | bfd_size_type parsed_size; | |
3165 | char *raw_armap; | |
3166 | struct artdata *ardata; | |
3167 | unsigned int count; | |
3168 | char *raw_ptr; | |
3169 | struct symdef *symdef_ptr; | |
3170 | char *stringbase; | |
3171 | ||
3172 | /* Get the name of the first element. */ | |
3173 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
3174 | if (i == 0) | |
3175 | return true; | |
3176 | if (i != 16) | |
3177 | return false; | |
3178 | ||
4002f18a ILT |
3179 | if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0) |
3180 | return false; | |
dae31cf5 | 3181 | |
8c11363a ILT |
3182 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a |
3183 | standard COFF armap. We could move the ECOFF armap stuff into | |
3184 | bfd_slurp_armap, but that seems inappropriate since no other | |
3185 | target uses this format. Instead, we check directly for a COFF | |
3186 | armap. */ | |
3187 | if (strncmp (nextname, "/ ", 16) == 0) | |
3188 | return bfd_slurp_armap (abfd); | |
3189 | ||
dae31cf5 | 3190 | /* See if the first element is an armap. */ |
48edba81 ILT |
3191 | if (strncmp (nextname, ecoff_backend (abfd)->armap_start, |
3192 | ARMAP_START_LENGTH) != 0 | |
dae31cf5 ILT |
3193 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER |
3194 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3195 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3196 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
3197 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3198 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3199 | || strncmp (nextname + ARMAP_END_INDEX, | |
3200 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3201 | { | |
3202 | bfd_has_map (abfd) = false; | |
3203 | return true; | |
3204 | } | |
3205 | ||
3206 | /* Make sure we have the right byte ordering. */ | |
3207 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3208 | ^ (abfd->xvec->header_byteorder_big_p != false)) | |
3209 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3210 | ^ (abfd->xvec->byteorder_big_p != false))) | |
3211 | { | |
d1ad85a6 | 3212 | bfd_set_error (bfd_error_wrong_format); |
dae31cf5 ILT |
3213 | return false; |
3214 | } | |
3215 | ||
3216 | /* Read in the armap. */ | |
3217 | ardata = bfd_ardata (abfd); | |
b59f0276 | 3218 | mapdata = _bfd_snarf_ar_hdr (abfd); |
dae31cf5 ILT |
3219 | if (mapdata == (struct areltdata *) NULL) |
3220 | return false; | |
3221 | parsed_size = mapdata->parsed_size; | |
3222 | bfd_release (abfd, (PTR) mapdata); | |
3223 | ||
3224 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
3225 | if (raw_armap == (char *) NULL) | |
3226 | { | |
d1ad85a6 | 3227 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
3228 | return false; |
3229 | } | |
3230 | ||
3231 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
3232 | { | |
4002f18a ILT |
3233 | if (bfd_get_error () != bfd_error_system_call) |
3234 | bfd_set_error (bfd_error_malformed_archive); | |
dae31cf5 ILT |
3235 | bfd_release (abfd, (PTR) raw_armap); |
3236 | return false; | |
3237 | } | |
3238 | ||
b59f0276 ILT |
3239 | ardata->tdata = (PTR) raw_armap; |
3240 | ||
dae31cf5 ILT |
3241 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); |
3242 | ||
3243 | ardata->symdef_count = 0; | |
3244 | ardata->cache = (struct ar_cache *) NULL; | |
3245 | ||
48edba81 ILT |
3246 | /* This code used to overlay the symdefs over the raw archive data, |
3247 | but that doesn't work on a 64 bit host. */ | |
3248 | ||
e544ed4f | 3249 | stringbase = raw_armap + count * 8 + 8; |
dae31cf5 ILT |
3250 | |
3251 | #ifdef CHECK_ARMAP_HASH | |
3252 | { | |
3253 | unsigned int hlog; | |
3254 | ||
3255 | /* Double check that I have the hashing algorithm right by making | |
3256 | sure that every symbol can be looked up successfully. */ | |
3257 | hlog = 0; | |
3258 | for (i = 1; i < count; i <<= 1) | |
3259 | hlog++; | |
3260 | BFD_ASSERT (i == count); | |
3261 | ||
e544ed4f ILT |
3262 | raw_ptr = raw_armap + 4; |
3263 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3264 | { |
3265 | unsigned int name_offset, file_offset; | |
3266 | unsigned int hash, rehash, srch; | |
3267 | ||
3268 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
e544ed4f | 3269 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3270 | if (file_offset == 0) |
3271 | continue; | |
3272 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3273 | hlog); | |
3274 | if (hash == i) | |
3275 | continue; | |
3276 | ||
3277 | /* See if we can rehash to this location. */ | |
3278 | for (srch = (hash + rehash) & (count - 1); | |
3279 | srch != hash && srch != i; | |
3280 | srch = (srch + rehash) & (count - 1)) | |
e544ed4f | 3281 | BFD_ASSERT (bfd_h_get_32 (abfd, (PTR) (raw_armap + 8 + srch * 8)) |
dae31cf5 ILT |
3282 | != 0); |
3283 | BFD_ASSERT (srch == i); | |
3284 | } | |
3285 | } | |
3286 | ||
dae31cf5 ILT |
3287 | #endif /* CHECK_ARMAP_HASH */ |
3288 | ||
e544ed4f ILT |
3289 | raw_ptr = raw_armap + 4; |
3290 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3291 | if (bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)) != 0) | |
48edba81 ILT |
3292 | ++ardata->symdef_count; |
3293 | ||
3294 | symdef_ptr = ((struct symdef *) | |
3295 | bfd_alloc (abfd, | |
3296 | ardata->symdef_count * sizeof (struct symdef))); | |
9783e04a DM |
3297 | if (!symdef_ptr) |
3298 | { | |
d1ad85a6 | 3299 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3300 | return false; |
3301 | } | |
3302 | ||
48edba81 ILT |
3303 | ardata->symdefs = (carsym *) symdef_ptr; |
3304 | ||
e544ed4f ILT |
3305 | raw_ptr = raw_armap + 4; |
3306 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3307 | { |
3308 | unsigned int name_offset, file_offset; | |
3309 | ||
e544ed4f | 3310 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3311 | if (file_offset == 0) |
3312 | continue; | |
48edba81 | 3313 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); |
dae31cf5 ILT |
3314 | symdef_ptr->s.name = stringbase + name_offset; |
3315 | symdef_ptr->file_offset = file_offset; | |
3316 | ++symdef_ptr; | |
dae31cf5 ILT |
3317 | } |
3318 | ||
3319 | ardata->first_file_filepos = bfd_tell (abfd); | |
3320 | /* Pad to an even boundary. */ | |
3321 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3322 | ||
3323 | bfd_has_map (abfd) = true; | |
3324 | ||
3325 | return true; | |
3326 | } | |
3327 | ||
3328 | /* Write out an armap. */ | |
3329 | ||
3330 | boolean | |
3331 | ecoff_write_armap (abfd, elength, map, orl_count, stridx) | |
3332 | bfd *abfd; | |
3333 | unsigned int elength; | |
3334 | struct orl *map; | |
3335 | unsigned int orl_count; | |
3336 | int stridx; | |
3337 | { | |
3338 | unsigned int hashsize, hashlog; | |
3339 | unsigned int symdefsize; | |
3340 | int padit; | |
3341 | unsigned int stringsize; | |
3342 | unsigned int mapsize; | |
3343 | file_ptr firstreal; | |
3344 | struct ar_hdr hdr; | |
3345 | struct stat statbuf; | |
3346 | unsigned int i; | |
e544ed4f | 3347 | bfd_byte temp[4]; |
dae31cf5 ILT |
3348 | bfd_byte *hashtable; |
3349 | bfd *current; | |
3350 | bfd *last_elt; | |
3351 | ||
3352 | /* Ultrix appears to use as a hash table size the least power of two | |
3353 | greater than twice the number of entries. */ | |
3354 | for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) | |
3355 | ; | |
3356 | hashsize = 1 << hashlog; | |
3357 | ||
e544ed4f | 3358 | symdefsize = hashsize * 8; |
dae31cf5 ILT |
3359 | padit = stridx % 2; |
3360 | stringsize = stridx + padit; | |
3361 | ||
3362 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
e544ed4f | 3363 | mapsize = symdefsize + stringsize + 8; |
dae31cf5 ILT |
3364 | |
3365 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3366 | ||
3367 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3368 | ||
3369 | /* Work out the ECOFF armap name. */ | |
48edba81 | 3370 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); |
dae31cf5 ILT |
3371 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; |
3372 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3373 | (abfd->xvec->header_byteorder_big_p | |
3374 | ? ARMAP_BIG_ENDIAN | |
3375 | : ARMAP_LITTLE_ENDIAN); | |
3376 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3377 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3378 | abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3379 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3380 | ||
3381 | /* Write the timestamp of the archive header to be just a little bit | |
3382 | later than the timestamp of the file, otherwise the linker will | |
3383 | complain that the index is out of date. Actually, the Ultrix | |
3384 | linker just checks the archive name; the GNU linker may check the | |
3385 | date. */ | |
3386 | stat (abfd->filename, &statbuf); | |
3387 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3388 | ||
3389 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3390 | armap. */ | |
3391 | hdr.ar_uid[0] = '0'; | |
3392 | hdr.ar_gid[0] = '0'; | |
3393 | hdr.ar_mode[0] = '0'; | |
3394 | ||
3395 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3396 | ||
3397 | hdr.ar_fmag[0] = '`'; | |
9a793780 | 3398 | hdr.ar_fmag[1] = '\012'; |
dae31cf5 ILT |
3399 | |
3400 | /* Turn all null bytes in the header into spaces. */ | |
3401 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3402 | if (((char *)(&hdr))[i] == '\0') | |
3403 | (((char *)(&hdr))[i]) = ' '; | |
3404 | ||
3405 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) | |
3406 | != sizeof (struct ar_hdr)) | |
3407 | return false; | |
3408 | ||
4c3721d5 | 3409 | bfd_h_put_32 (abfd, (bfd_vma) hashsize, temp); |
728472f1 | 3410 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3411 | return false; |
3412 | ||
3413 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); | |
9783e04a DM |
3414 | if (!hashtable) |
3415 | { | |
d1ad85a6 | 3416 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3417 | return false; |
3418 | } | |
dae31cf5 ILT |
3419 | |
3420 | current = abfd->archive_head; | |
3421 | last_elt = current; | |
3422 | for (i = 0; i < orl_count; i++) | |
3423 | { | |
3424 | unsigned int hash, rehash; | |
3425 | ||
3426 | /* Advance firstreal to the file position of this archive | |
3427 | element. */ | |
3428 | if (((bfd *) map[i].pos) != last_elt) | |
3429 | { | |
3430 | do | |
3431 | { | |
3432 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3433 | firstreal += firstreal % 2; | |
3434 | current = current->next; | |
3435 | } | |
3436 | while (current != (bfd *) map[i].pos); | |
3437 | } | |
3438 | ||
3439 | last_elt = current; | |
3440 | ||
3441 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); | |
e544ed4f | 3442 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (hash * 8) + 4)) != 0) |
dae31cf5 ILT |
3443 | { |
3444 | unsigned int srch; | |
3445 | ||
3446 | /* The desired slot is already taken. */ | |
3447 | for (srch = (hash + rehash) & (hashsize - 1); | |
3448 | srch != hash; | |
3449 | srch = (srch + rehash) & (hashsize - 1)) | |
e544ed4f | 3450 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (srch * 8) + 4)) == 0) |
dae31cf5 ILT |
3451 | break; |
3452 | ||
3453 | BFD_ASSERT (srch != hash); | |
3454 | ||
3455 | hash = srch; | |
3456 | } | |
3457 | ||
4c3721d5 ILT |
3458 | bfd_h_put_32 (abfd, (bfd_vma) map[i].namidx, |
3459 | (PTR) (hashtable + hash * 8)); | |
3460 | bfd_h_put_32 (abfd, (bfd_vma) firstreal, | |
3461 | (PTR) (hashtable + hash * 8 + 4)); | |
dae31cf5 ILT |
3462 | } |
3463 | ||
728472f1 | 3464 | if (bfd_write ((PTR) hashtable, 1, symdefsize, abfd) != symdefsize) |
dae31cf5 ILT |
3465 | return false; |
3466 | ||
3467 | bfd_release (abfd, hashtable); | |
3468 | ||
3469 | /* Now write the strings. */ | |
4c3721d5 | 3470 | bfd_h_put_32 (abfd, (bfd_vma) stringsize, temp); |
728472f1 | 3471 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3472 | return false; |
3473 | for (i = 0; i < orl_count; i++) | |
3474 | { | |
3475 | bfd_size_type len; | |
3476 | ||
3477 | len = strlen (*map[i].name) + 1; | |
3478 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3479 | return false; | |
3480 | } | |
3481 | ||
3482 | /* The spec sez this should be a newline. But in order to be | |
3483 | bug-compatible for DECstation ar we use a null. */ | |
3484 | if (padit) | |
3485 | { | |
728472f1 | 3486 | if (bfd_write ("", 1, 1, abfd) != 1) |
dae31cf5 ILT |
3487 | return false; |
3488 | } | |
3489 | ||
3490 | return true; | |
3491 | } | |
3492 | ||
3493 | /* See whether this BFD is an archive. If it is, read in the armap | |
3494 | and the extended name table. */ | |
3495 | ||
3496 | bfd_target * | |
3497 | ecoff_archive_p (abfd) | |
3498 | bfd *abfd; | |
3499 | { | |
3500 | char armag[SARMAG + 1]; | |
3501 | ||
3502 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG | |
3503 | || strncmp (armag, ARMAG, SARMAG) != 0) | |
3504 | { | |
4002f18a ILT |
3505 | if (bfd_get_error () != bfd_error_system_call) |
3506 | bfd_set_error (bfd_error_wrong_format); | |
dae31cf5 ILT |
3507 | return (bfd_target *) NULL; |
3508 | } | |
3509 | ||
3510 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3511 | involves a cast, we can't do it as the left operand of | |
3512 | assignment. */ | |
3513 | abfd->tdata.aout_ar_data = | |
3514 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3515 | ||
3516 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3517 | { | |
d1ad85a6 | 3518 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
3519 | return (bfd_target *) NULL; |
3520 | } | |
3521 | ||
3522 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
b59f0276 ILT |
3523 | bfd_ardata (abfd)->cache = NULL; |
3524 | bfd_ardata (abfd)->archive_head = NULL; | |
3525 | bfd_ardata (abfd)->symdefs = NULL; | |
3526 | bfd_ardata (abfd)->extended_names = NULL; | |
3527 | bfd_ardata (abfd)->tdata = NULL; | |
dae31cf5 ILT |
3528 | |
3529 | if (ecoff_slurp_armap (abfd) == false | |
3530 | || ecoff_slurp_extended_name_table (abfd) == false) | |
3531 | { | |
3532 | bfd_release (abfd, bfd_ardata (abfd)); | |
3533 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
3534 | return (bfd_target *) NULL; | |
3535 | } | |
3536 | ||
3537 | return abfd->xvec; | |
3538 | } | |
966e0a16 ILT |
3539 | \f |
3540 | /* ECOFF linker code. */ | |
3541 | ||
3542 | static struct bfd_hash_entry *ecoff_link_hash_newfunc | |
3543 | PARAMS ((struct bfd_hash_entry *entry, | |
3544 | struct bfd_hash_table *table, | |
3545 | const char *string)); | |
3546 | static boolean ecoff_link_add_archive_symbols | |
3547 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3548 | static boolean ecoff_link_check_archive_element | |
3549 | PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded)); | |
3550 | static boolean ecoff_link_add_object_symbols | |
3551 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3552 | static boolean ecoff_link_add_externals | |
3553 | PARAMS ((bfd *, struct bfd_link_info *, PTR, char *)); | |
3554 | ||
3555 | /* Routine to create an entry in an ECOFF link hash table. */ | |
3556 | ||
3557 | static struct bfd_hash_entry * | |
3558 | ecoff_link_hash_newfunc (entry, table, string) | |
3559 | struct bfd_hash_entry *entry; | |
3560 | struct bfd_hash_table *table; | |
3561 | const char *string; | |
3562 | { | |
3563 | struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry; | |
3564 | ||
3565 | /* Allocate the structure if it has not already been allocated by a | |
3566 | subclass. */ | |
3567 | if (ret == (struct ecoff_link_hash_entry *) NULL) | |
3568 | ret = ((struct ecoff_link_hash_entry *) | |
3569 | bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry))); | |
9783e04a DM |
3570 | if (ret == (struct ecoff_link_hash_entry *) NULL) |
3571 | { | |
d1ad85a6 | 3572 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3573 | return NULL; |
3574 | } | |
966e0a16 ILT |
3575 | |
3576 | /* Call the allocation method of the superclass. */ | |
3577 | ret = ((struct ecoff_link_hash_entry *) | |
3578 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3579 | table, string)); | |
3580 | ||
9783e04a DM |
3581 | if (ret) |
3582 | { | |
3583 | /* Set local fields. */ | |
3584 | ret->indx = -1; | |
3585 | ret->abfd = NULL; | |
ac9ed096 ILT |
3586 | ret->written = 0; |
3587 | ret->small = 0; | |
9783e04a | 3588 | } |
68241b2b | 3589 | memset ((PTR) &ret->esym, 0, sizeof ret->esym); |
966e0a16 ILT |
3590 | |
3591 | return (struct bfd_hash_entry *) ret; | |
3592 | } | |
3593 | ||
3594 | /* Create an ECOFF link hash table. */ | |
3595 | ||
3596 | struct bfd_link_hash_table * | |
3597 | ecoff_bfd_link_hash_table_create (abfd) | |
3598 | bfd *abfd; | |
3599 | { | |
3600 | struct ecoff_link_hash_table *ret; | |
3601 | ||
3602 | ret = ((struct ecoff_link_hash_table *) | |
9a793780 SS |
3603 | malloc (sizeof (struct ecoff_link_hash_table))); |
3604 | if (!ret) | |
3605 | { | |
d1ad85a6 | 3606 | bfd_set_error (bfd_error_no_memory); |
9a793780 SS |
3607 | return NULL; |
3608 | } | |
966e0a16 ILT |
3609 | if (! _bfd_link_hash_table_init (&ret->root, abfd, |
3610 | ecoff_link_hash_newfunc)) | |
3611 | { | |
3612 | free (ret); | |
3613 | return (struct bfd_link_hash_table *) NULL; | |
3614 | } | |
3615 | return &ret->root; | |
3616 | } | |
3617 | ||
3618 | /* Look up an entry in an ECOFF link hash table. */ | |
3619 | ||
3620 | #define ecoff_link_hash_lookup(table, string, create, copy, follow) \ | |
3621 | ((struct ecoff_link_hash_entry *) \ | |
3622 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow))) | |
3623 | ||
3624 | /* Traverse an ECOFF link hash table. */ | |
3625 | ||
3626 | #define ecoff_link_hash_traverse(table, func, info) \ | |
3627 | (bfd_link_hash_traverse \ | |
3628 | (&(table)->root, \ | |
3629 | (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ | |
3630 | (info))) | |
3631 | ||
3632 | /* Get the ECOFF link hash table from the info structure. This is | |
3633 | just a cast. */ | |
3634 | ||
3635 | #define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash)) | |
3636 | ||
3637 | /* Given an ECOFF BFD, add symbols to the global hash table as | |
3638 | appropriate. */ | |
3639 | ||
3640 | boolean | |
3641 | ecoff_bfd_link_add_symbols (abfd, info) | |
3642 | bfd *abfd; | |
3643 | struct bfd_link_info *info; | |
3644 | { | |
3645 | switch (bfd_get_format (abfd)) | |
3646 | { | |
3647 | case bfd_object: | |
3648 | return ecoff_link_add_object_symbols (abfd, info); | |
3649 | case bfd_archive: | |
3650 | return ecoff_link_add_archive_symbols (abfd, info); | |
3651 | default: | |
d1ad85a6 | 3652 | bfd_set_error (bfd_error_wrong_format); |
966e0a16 ILT |
3653 | return false; |
3654 | } | |
3655 | } | |
3656 | ||
3657 | /* Add the symbols from an archive file to the global hash table. | |
3658 | This looks through the undefined symbols, looks each one up in the | |
3659 | archive hash table, and adds any associated object file. We do not | |
3660 | use _bfd_generic_link_add_archive_symbols because ECOFF archives | |
3661 | already have a hash table, so there is no reason to construct | |
3662 | another one. */ | |
3663 | ||
3664 | static boolean | |
3665 | ecoff_link_add_archive_symbols (abfd, info) | |
3666 | bfd *abfd; | |
3667 | struct bfd_link_info *info; | |
3668 | { | |
3669 | const bfd_byte *raw_armap; | |
3670 | struct bfd_link_hash_entry **pundef; | |
3671 | unsigned int armap_count; | |
3672 | unsigned int armap_log; | |
3673 | unsigned int i; | |
3674 | const bfd_byte *hashtable; | |
3675 | const char *stringbase; | |
3676 | ||
3677 | if (! bfd_has_map (abfd)) | |
3678 | { | |
d1ad85a6 | 3679 | bfd_set_error (bfd_error_no_symbols); |
966e0a16 ILT |
3680 | return false; |
3681 | } | |
3682 | ||
3683 | /* If we don't have any raw data for this archive, as can happen on | |
3684 | Irix 4.0.5F, we call the generic routine. | |
3685 | FIXME: We should be more clever about this, since someday tdata | |
3686 | may get to something for a generic archive. */ | |
3687 | raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata; | |
3688 | if (raw_armap == (bfd_byte *) NULL) | |
3689 | return (_bfd_generic_link_add_archive_symbols | |
3690 | (abfd, info, ecoff_link_check_archive_element)); | |
3691 | ||
3692 | armap_count = bfd_h_get_32 (abfd, raw_armap); | |
3693 | ||
3694 | armap_log = 0; | |
3695 | for (i = 1; i < armap_count; i <<= 1) | |
3696 | armap_log++; | |
3697 | BFD_ASSERT (i == armap_count); | |
3698 | ||
3699 | hashtable = raw_armap + 4; | |
3700 | stringbase = (const char *) raw_armap + armap_count * 8 + 8; | |
3701 | ||
3702 | /* Look through the list of undefined symbols. */ | |
3703 | pundef = &info->hash->undefs; | |
3704 | while (*pundef != (struct bfd_link_hash_entry *) NULL) | |
3705 | { | |
3706 | struct bfd_link_hash_entry *h; | |
3707 | unsigned int hash, rehash; | |
3708 | unsigned int file_offset; | |
3709 | const char *name; | |
3710 | bfd *element; | |
3711 | ||
3712 | h = *pundef; | |
3713 | ||
3714 | /* When a symbol is defined, it is not necessarily removed from | |
3715 | the list. */ | |
3716 | if (h->type != bfd_link_hash_undefined | |
3717 | && h->type != bfd_link_hash_common) | |
3718 | { | |
3719 | /* Remove this entry from the list, for general cleanliness | |
3720 | and because we are going to look through the list again | |
3721 | if we search any more libraries. We can't remove the | |
3722 | entry if it is the tail, because that would lose any | |
3723 | entries we add to the list later on. */ | |
3724 | if (*pundef != info->hash->undefs_tail) | |
3725 | *pundef = (*pundef)->next; | |
3726 | else | |
3727 | pundef = &(*pundef)->next; | |
3728 | continue; | |
3729 | } | |
3730 | ||
3731 | /* Native ECOFF linkers do not pull in archive elements merely | |
3732 | to satisfy common definitions, so neither do we. We leave | |
3733 | them on the list, though, in case we are linking against some | |
3734 | other object format. */ | |
3735 | if (h->type != bfd_link_hash_undefined) | |
3736 | { | |
3737 | pundef = &(*pundef)->next; | |
3738 | continue; | |
3739 | } | |
3740 | ||
3741 | /* Look for this symbol in the archive hash table. */ | |
3742 | hash = ecoff_armap_hash (h->root.string, &rehash, armap_count, | |
3743 | armap_log); | |
3744 | ||
3745 | file_offset = bfd_h_get_32 (abfd, hashtable + (hash * 8) + 4); | |
3746 | if (file_offset == 0) | |
3747 | { | |
3748 | /* Nothing in this slot. */ | |
3749 | pundef = &(*pundef)->next; | |
3750 | continue; | |
3751 | } | |
3752 | ||
3753 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (hash * 8)); | |
3754 | if (name[0] != h->root.string[0] | |
3755 | || strcmp (name, h->root.string) != 0) | |
3756 | { | |
3757 | unsigned int srch; | |
3758 | boolean found; | |
3759 | ||
3760 | /* That was the wrong symbol. Try rehashing. */ | |
3761 | found = false; | |
3762 | for (srch = (hash + rehash) & (armap_count - 1); | |
3763 | srch != hash; | |
3764 | srch = (srch + rehash) & (armap_count - 1)) | |
3765 | { | |
3766 | file_offset = bfd_h_get_32 (abfd, hashtable + (srch * 8) + 4); | |
3767 | if (file_offset == 0) | |
3768 | break; | |
3769 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (srch * 8)); | |
3770 | if (name[0] == h->root.string[0] | |
3771 | && strcmp (name, h->root.string) == 0) | |
3772 | { | |
3773 | found = true; | |
3774 | break; | |
3775 | } | |
3776 | } | |
3777 | ||
3778 | if (! found) | |
3779 | { | |
3780 | pundef = &(*pundef)->next; | |
3781 | continue; | |
3782 | } | |
3783 | ||
3784 | hash = srch; | |
3785 | } | |
3786 | ||
3787 | element = _bfd_get_elt_at_filepos (abfd, file_offset); | |
3788 | if (element == (bfd *) NULL) | |
3789 | return false; | |
3790 | ||
3791 | if (! bfd_check_format (element, bfd_object)) | |
3792 | return false; | |
3793 | ||
3794 | /* Unlike the generic linker, we know that this element provides | |
3795 | a definition for an undefined symbol and we know that we want | |
3796 | to include it. We don't need to check anything. */ | |
3797 | if (! (*info->callbacks->add_archive_element) (info, element, name)) | |
3798 | return false; | |
3799 | if (! ecoff_link_add_object_symbols (element, info)) | |
3800 | return false; | |
3801 | ||
3802 | pundef = &(*pundef)->next; | |
3803 | } | |
3804 | ||
3805 | return true; | |
3806 | } | |
3807 | ||
3808 | /* This is called if we used _bfd_generic_link_add_archive_symbols | |
3809 | because we were not dealing with an ECOFF archive. */ | |
3810 | ||
3811 | static boolean | |
3812 | ecoff_link_check_archive_element (abfd, info, pneeded) | |
3813 | bfd *abfd; | |
3814 | struct bfd_link_info *info; | |
3815 | boolean *pneeded; | |
3816 | { | |
3817 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3818 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3819 | = backend->debug_swap.swap_ext_in; | |
3820 | HDRR *symhdr; | |
3821 | bfd_size_type external_ext_size; | |
80425e6c | 3822 | PTR external_ext = NULL; |
966e0a16 | 3823 | size_t esize; |
80425e6c | 3824 | char *ssext = NULL; |
966e0a16 ILT |
3825 | char *ext_ptr; |
3826 | char *ext_end; | |
3827 | ||
3828 | *pneeded = false; | |
3829 | ||
3830 | if (! ecoff_slurp_symbolic_header (abfd)) | |
80425e6c | 3831 | goto error_return; |
966e0a16 ILT |
3832 | |
3833 | /* If there are no symbols, we don't want it. */ | |
3834 | if (bfd_get_symcount (abfd) == 0) | |
80425e6c | 3835 | goto successful_return; |
966e0a16 ILT |
3836 | |
3837 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3838 | ||
3839 | /* Read in the external symbols and external strings. */ | |
3840 | external_ext_size = backend->debug_swap.external_ext_size; | |
3841 | esize = symhdr->iextMax * external_ext_size; | |
80425e6c | 3842 | external_ext = (PTR) malloc (esize); |
a3a33af3 | 3843 | if (external_ext == NULL && esize != 0) |
80425e6c JK |
3844 | { |
3845 | bfd_set_error (bfd_error_no_memory); | |
3846 | goto error_return; | |
3847 | } | |
3848 | ||
966e0a16 ILT |
3849 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 |
3850 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
80425e6c JK |
3851 | goto error_return; |
3852 | ||
3853 | ssext = (char *) malloc (symhdr->issExtMax); | |
a3a33af3 | 3854 | if (ssext == NULL && symhdr->issExtMax != 0) |
80425e6c JK |
3855 | { |
3856 | bfd_set_error (bfd_error_no_memory); | |
3857 | goto error_return; | |
3858 | } | |
966e0a16 | 3859 | |
966e0a16 ILT |
3860 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 |
3861 | || bfd_read (ssext, 1, symhdr->issExtMax, abfd) != symhdr->issExtMax) | |
80425e6c | 3862 | goto error_return; |
966e0a16 ILT |
3863 | |
3864 | /* Look through the external symbols to see if they define some | |
3865 | symbol that is currently undefined. */ | |
3866 | ext_ptr = (char *) external_ext; | |
3867 | ext_end = ext_ptr + esize; | |
3868 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size) | |
3869 | { | |
3870 | EXTR esym; | |
3871 | boolean def; | |
3872 | const char *name; | |
3873 | struct bfd_link_hash_entry *h; | |
3874 | ||
3875 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3876 | ||
3877 | /* See if this symbol defines something. */ | |
3878 | if (esym.asym.st != stGlobal | |
3879 | && esym.asym.st != stLabel | |
3880 | && esym.asym.st != stProc) | |
3881 | continue; | |
3882 | ||
3883 | switch (esym.asym.sc) | |
3884 | { | |
3885 | case scText: | |
3886 | case scData: | |
3887 | case scBss: | |
3888 | case scAbs: | |
3889 | case scSData: | |
3890 | case scSBss: | |
3891 | case scRData: | |
3892 | case scCommon: | |
3893 | case scSCommon: | |
3894 | case scInit: | |
3895 | case scFini: | |
3896 | def = true; | |
3897 | break; | |
3898 | default: | |
3899 | def = false; | |
3900 | break; | |
3901 | } | |
3902 | ||
3903 | if (! def) | |
3904 | continue; | |
3905 | ||
3906 | name = ssext + esym.asym.iss; | |
3907 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); | |
3908 | ||
3909 | /* Unlike the generic linker, we do not pull in elements because | |
3910 | of common symbols. */ | |
3911 | if (h == (struct bfd_link_hash_entry *) NULL | |
3912 | || h->type != bfd_link_hash_undefined) | |
3913 | continue; | |
3914 | ||
3915 | /* Include this element. */ | |
3916 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
80425e6c | 3917 | goto error_return; |
966e0a16 | 3918 | if (! ecoff_link_add_externals (abfd, info, external_ext, ssext)) |
80425e6c | 3919 | goto error_return; |
966e0a16 ILT |
3920 | |
3921 | *pneeded = true; | |
80425e6c | 3922 | goto successful_return; |
966e0a16 ILT |
3923 | } |
3924 | ||
80425e6c JK |
3925 | successful_return: |
3926 | if (external_ext != NULL) | |
3927 | free (external_ext); | |
3928 | if (ssext != NULL) | |
3929 | free (ssext); | |
966e0a16 | 3930 | return true; |
80425e6c JK |
3931 | error_return: |
3932 | if (external_ext != NULL) | |
3933 | free (external_ext); | |
3934 | if (ssext != NULL) | |
3935 | free (ssext); | |
3936 | return false; | |
966e0a16 ILT |
3937 | } |
3938 | ||
3939 | /* Add symbols from an ECOFF object file to the global linker hash | |
3940 | table. */ | |
3941 | ||
3942 | static boolean | |
3943 | ecoff_link_add_object_symbols (abfd, info) | |
3944 | bfd *abfd; | |
3945 | struct bfd_link_info *info; | |
3946 | { | |
3947 | HDRR *symhdr; | |
3948 | bfd_size_type external_ext_size; | |
80425e6c | 3949 | PTR external_ext = NULL; |
966e0a16 | 3950 | size_t esize; |
80425e6c JK |
3951 | char *ssext = NULL; |
3952 | boolean result; | |
966e0a16 ILT |
3953 | |
3954 | if (! ecoff_slurp_symbolic_header (abfd)) | |
3955 | return false; | |
3956 | ||
3957 | /* If there are no symbols, we don't want it. */ | |
3958 | if (bfd_get_symcount (abfd) == 0) | |
3959 | return true; | |
3960 | ||
3961 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3962 | ||
3963 | /* Read in the external symbols and external strings. */ | |
3964 | external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size; | |
3965 | esize = symhdr->iextMax * external_ext_size; | |
80425e6c | 3966 | external_ext = (PTR) malloc (esize); |
a3a33af3 | 3967 | if (external_ext == NULL && esize != 0) |
80425e6c JK |
3968 | { |
3969 | bfd_set_error (bfd_error_no_memory); | |
3970 | goto error_return; | |
3971 | } | |
3972 | ||
966e0a16 ILT |
3973 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 |
3974 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
80425e6c JK |
3975 | goto error_return; |
3976 | ||
3977 | ssext = (char *) malloc (symhdr->issExtMax); | |
a3a33af3 | 3978 | if (ssext == NULL && symhdr->issExtMax != 0) |
80425e6c JK |
3979 | { |
3980 | bfd_set_error (bfd_error_no_memory); | |
3981 | goto error_return; | |
3982 | } | |
966e0a16 | 3983 | |
966e0a16 ILT |
3984 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 |
3985 | || bfd_read (ssext, 1, symhdr->issExtMax, abfd) != symhdr->issExtMax) | |
80425e6c JK |
3986 | goto error_return; |
3987 | ||
3988 | result = ecoff_link_add_externals (abfd, info, external_ext, ssext); | |
3989 | ||
3990 | if (ssext != NULL) | |
3991 | free (ssext); | |
3992 | if (external_ext != NULL) | |
3993 | free (external_ext); | |
3994 | return result; | |
3995 | ||
3996 | error_return: | |
3997 | if (ssext != NULL) | |
3998 | free (ssext); | |
3999 | if (external_ext != NULL) | |
4000 | free (external_ext); | |
4001 | return false; | |
966e0a16 ILT |
4002 | } |
4003 | ||
4004 | /* Add the external symbols of an object file to the global linker | |
4005 | hash table. The external symbols and strings we are passed are | |
4006 | just allocated on the stack, and will be discarded. We must | |
4007 | explicitly save any information we may need later on in the link. | |
4008 | We do not want to read the external symbol information again. */ | |
4009 | ||
4010 | static boolean | |
4011 | ecoff_link_add_externals (abfd, info, external_ext, ssext) | |
4012 | bfd *abfd; | |
4013 | struct bfd_link_info *info; | |
4014 | PTR external_ext; | |
4015 | char *ssext; | |
4016 | { | |
4017 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
4018 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
4019 | = backend->debug_swap.swap_ext_in; | |
4020 | bfd_size_type external_ext_size = backend->debug_swap.external_ext_size; | |
4021 | unsigned long ext_count; | |
4022 | struct ecoff_link_hash_entry **sym_hash; | |
4023 | char *ext_ptr; | |
4024 | char *ext_end; | |
4025 | ||
4026 | ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
4027 | ||
4028 | sym_hash = ((struct ecoff_link_hash_entry **) | |
4029 | bfd_alloc (abfd, | |
4030 | ext_count * sizeof (struct bfd_link_hash_entry *))); | |
9783e04a DM |
4031 | if (!sym_hash) |
4032 | { | |
d1ad85a6 | 4033 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
4034 | return false; |
4035 | } | |
966e0a16 ILT |
4036 | ecoff_data (abfd)->sym_hashes = sym_hash; |
4037 | ||
4038 | ext_ptr = (char *) external_ext; | |
4039 | ext_end = ext_ptr + ext_count * external_ext_size; | |
4040 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++) | |
4041 | { | |
4042 | EXTR esym; | |
4043 | boolean skip; | |
4044 | bfd_vma value; | |
4045 | asection *section; | |
4046 | const char *name; | |
4047 | struct ecoff_link_hash_entry *h; | |
4048 | ||
4049 | *sym_hash = NULL; | |
4050 | ||
4051 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
4052 | ||
4053 | /* Skip debugging symbols. */ | |
4054 | skip = false; | |
4055 | switch (esym.asym.st) | |
4056 | { | |
4057 | case stGlobal: | |
4058 | case stStatic: | |
4059 | case stLabel: | |
4060 | case stProc: | |
4061 | case stStaticProc: | |
4062 | break; | |
4063 | default: | |
4064 | skip = true; | |
4065 | break; | |
4066 | } | |
4067 | ||
4068 | if (skip) | |
4069 | continue; | |
4070 | ||
4071 | /* Get the information for this symbol. */ | |
4072 | value = esym.asym.value; | |
4073 | switch (esym.asym.sc) | |
4074 | { | |
4075 | default: | |
4076 | case scNil: | |
4077 | case scRegister: | |
4078 | case scCdbLocal: | |
4079 | case scBits: | |
4080 | case scCdbSystem: | |
4081 | case scRegImage: | |
4082 | case scInfo: | |
4083 | case scUserStruct: | |
4084 | case scVar: | |
4085 | case scVarRegister: | |
4086 | case scVariant: | |
4087 | case scBasedVar: | |
4088 | case scXData: | |
4089 | case scPData: | |
4090 | section = NULL; | |
4091 | break; | |
4092 | case scText: | |
4093 | section = bfd_make_section_old_way (abfd, ".text"); | |
4094 | value -= section->vma; | |
4095 | break; | |
4096 | case scData: | |
4097 | section = bfd_make_section_old_way (abfd, ".data"); | |
4098 | value -= section->vma; | |
4099 | break; | |
4100 | case scBss: | |
4101 | section = bfd_make_section_old_way (abfd, ".bss"); | |
4102 | value -= section->vma; | |
4103 | break; | |
4104 | case scAbs: | |
4105 | section = &bfd_abs_section; | |
4106 | break; | |
4107 | case scUndefined: | |
4108 | section = &bfd_und_section; | |
4109 | break; | |
4110 | case scSData: | |
4111 | section = bfd_make_section_old_way (abfd, ".sdata"); | |
4112 | value -= section->vma; | |
4113 | break; | |
4114 | case scSBss: | |
4115 | section = bfd_make_section_old_way (abfd, ".sbss"); | |
4116 | value -= section->vma; | |
4117 | break; | |
4118 | case scRData: | |
4119 | section = bfd_make_section_old_way (abfd, ".rdata"); | |
4120 | value -= section->vma; | |
4121 | break; | |
4122 | case scCommon: | |
4123 | if (value > ecoff_data (abfd)->gp_size) | |
4124 | { | |
4125 | section = &bfd_com_section; | |
4126 | break; | |
4127 | } | |
4128 | /* Fall through. */ | |
4129 | case scSCommon: | |
4130 | if (ecoff_scom_section.name == NULL) | |
4131 | { | |
4132 | /* Initialize the small common section. */ | |
4133 | ecoff_scom_section.name = SCOMMON; | |
4134 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
4135 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
4136 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
4137 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
4138 | ecoff_scom_symbol.name = SCOMMON; | |
4139 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
4140 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
4141 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
4142 | } | |
4143 | section = &ecoff_scom_section; | |
4144 | break; | |
4145 | case scSUndefined: | |
4146 | section = &bfd_und_section; | |
4147 | break; | |
4148 | case scInit: | |
4149 | section = bfd_make_section_old_way (abfd, ".init"); | |
4150 | value -= section->vma; | |
4151 | break; | |
4152 | case scFini: | |
4153 | section = bfd_make_section_old_way (abfd, ".fini"); | |
4154 | value -= section->vma; | |
4155 | break; | |
4156 | } | |
4157 | ||
4158 | if (section == (asection *) NULL) | |
4159 | continue; | |
4160 | ||
4161 | name = ssext + esym.asym.iss; | |
4162 | ||
8e5090ce | 4163 | h = NULL; |
966e0a16 ILT |
4164 | if (! (_bfd_generic_link_add_one_symbol |
4165 | (info, abfd, name, BSF_GLOBAL, section, value, | |
a3a33af3 | 4166 | (const char *) NULL, true, true, |
966e0a16 ILT |
4167 | (struct bfd_link_hash_entry **) &h))) |
4168 | return false; | |
4169 | ||
4170 | *sym_hash = h; | |
4171 | ||
4172 | /* If we are building an ECOFF hash table, save the external | |
4173 | symbol information. */ | |
4174 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) | |
4175 | { | |
4176 | if (h->abfd == (bfd *) NULL | |
4177 | || (section != &bfd_und_section | |
4178 | && (! bfd_is_com_section (section) | |
4179 | || h->root.type != bfd_link_hash_defined))) | |
4180 | { | |
4181 | h->abfd = abfd; | |
4182 | h->esym = esym; | |
4183 | } | |
ac9ed096 ILT |
4184 | |
4185 | /* Remember whether this symbol was small undefined. */ | |
4186 | if (esym.asym.sc == scSUndefined) | |
4187 | h->small = 1; | |
4188 | ||
4189 | /* If this symbol was ever small undefined, it needs to wind | |
4190 | up in a GP relative section. We can't control the | |
4191 | section of a defined symbol, but we can control the | |
4192 | section of a common symbol. This case is actually needed | |
4193 | on Ultrix 4.2 to handle the symbol cred in -lckrb. */ | |
4194 | if (h->small | |
4195 | && h->root.type == bfd_link_hash_common | |
4196 | && strcmp (h->root.u.c.section->name, SCOMMON) != 0) | |
4197 | { | |
4198 | h->root.u.c.section = bfd_make_section_old_way (abfd, SCOMMON); | |
4199 | h->root.u.c.section->flags = SEC_ALLOC; | |
4200 | if (h->esym.asym.sc == scCommon) | |
4201 | h->esym.asym.sc = scSCommon; | |
4202 | } | |
966e0a16 ILT |
4203 | } |
4204 | } | |
4205 | ||
4206 | return true; | |
4207 | } | |
4208 | \f | |
4209 | /* ECOFF final link routines. */ | |
4210 | ||
4211 | static boolean ecoff_final_link_debug_accumulate | |
3f048f7f ILT |
4212 | PARAMS ((bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *, |
4213 | PTR handle)); | |
966e0a16 ILT |
4214 | static boolean ecoff_link_write_external |
4215 | PARAMS ((struct ecoff_link_hash_entry *, PTR)); | |
4216 | static boolean ecoff_indirect_link_order | |
4217 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
4218 | struct bfd_link_order *)); | |
a3a33af3 ILT |
4219 | static boolean ecoff_reloc_link_order |
4220 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
4221 | struct bfd_link_order *)); | |
966e0a16 ILT |
4222 | |
4223 | /* ECOFF final link routine. This looks through all the input BFDs | |
4224 | and gathers together all the debugging information, and then | |
4225 | processes all the link order information. This may cause it to | |
4226 | close and reopen some input BFDs; I'll see how bad this is. */ | |
4227 | ||
4228 | boolean | |
4229 | ecoff_bfd_final_link (abfd, info) | |
4230 | bfd *abfd; | |
4231 | struct bfd_link_info *info; | |
4232 | { | |
4233 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
4234 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; | |
4235 | HDRR *symhdr; | |
3f048f7f | 4236 | PTR handle; |
966e0a16 ILT |
4237 | register bfd *input_bfd; |
4238 | asection *o; | |
4239 | struct bfd_link_order *p; | |
4240 | ||
4241 | /* We accumulate the debugging information counts in the symbolic | |
4242 | header. */ | |
4243 | symhdr = &debug->symbolic_header; | |
966e0a16 ILT |
4244 | symhdr->vstamp = 0; |
4245 | symhdr->ilineMax = 0; | |
4246 | symhdr->cbLine = 0; | |
4247 | symhdr->idnMax = 0; | |
4248 | symhdr->ipdMax = 0; | |
4249 | symhdr->isymMax = 0; | |
4250 | symhdr->ioptMax = 0; | |
4251 | symhdr->iauxMax = 0; | |
4252 | symhdr->issMax = 0; | |
4253 | symhdr->issExtMax = 0; | |
4254 | symhdr->ifdMax = 0; | |
4255 | symhdr->crfd = 0; | |
4256 | symhdr->iextMax = 0; | |
4257 | ||
4258 | /* We accumulate the debugging information itself in the debug_info | |
4259 | structure. */ | |
3f048f7f ILT |
4260 | debug->line = NULL; |
4261 | debug->external_dnr = NULL; | |
4262 | debug->external_pdr = NULL; | |
4263 | debug->external_sym = NULL; | |
4264 | debug->external_opt = NULL; | |
4265 | debug->external_aux = NULL; | |
4266 | debug->ss = NULL; | |
966e0a16 | 4267 | debug->ssext = debug->ssext_end = NULL; |
3f048f7f ILT |
4268 | debug->external_fdr = NULL; |
4269 | debug->external_rfd = NULL; | |
966e0a16 ILT |
4270 | debug->external_ext = debug->external_ext_end = NULL; |
4271 | ||
3f048f7f ILT |
4272 | handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info); |
4273 | if (handle == (PTR) NULL) | |
4274 | return false; | |
4275 | ||
966e0a16 ILT |
4276 | /* Accumulate the debugging symbols from each input BFD. */ |
4277 | for (input_bfd = info->input_bfds; | |
4278 | input_bfd != (bfd *) NULL; | |
4279 | input_bfd = input_bfd->link_next) | |
4280 | { | |
4281 | boolean ret; | |
4282 | ||
966e0a16 | 4283 | if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour) |
3f048f7f ILT |
4284 | { |
4285 | /* Abitrarily set the symbolic header vstamp to the vstamp | |
4286 | of the first object file in the link. */ | |
4287 | if (symhdr->vstamp == 0) | |
4288 | symhdr->vstamp | |
4289 | = ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp; | |
4290 | ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info, | |
4291 | handle); | |
4292 | } | |
966e0a16 | 4293 | else |
3f048f7f ILT |
4294 | ret = bfd_ecoff_debug_accumulate_other (handle, abfd, |
4295 | debug, &backend->debug_swap, | |
4296 | input_bfd, info); | |
966e0a16 ILT |
4297 | if (! ret) |
4298 | return false; | |
4299 | ||
4300 | /* Combine the register masks. */ | |
4301 | ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask; | |
4302 | ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask; | |
4303 | ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0]; | |
4304 | ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1]; | |
4305 | ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2]; | |
4306 | ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3]; | |
4307 | } | |
4308 | ||
4309 | /* Write out the external symbols. */ | |
4310 | ecoff_link_hash_traverse (ecoff_hash_table (info), | |
4311 | ecoff_link_write_external, | |
4312 | (PTR) abfd); | |
4313 | ||
4314 | if (info->relocateable) | |
4315 | { | |
4316 | /* We need to make a pass over the link_orders to count up the | |
4317 | number of relocations we will need to output, so that we know | |
4318 | how much space they will take up. */ | |
4319 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4320 | { | |
4321 | o->reloc_count = 0; | |
4322 | for (p = o->link_order_head; | |
4323 | p != (struct bfd_link_order *) NULL; | |
4324 | p = p->next) | |
4325 | if (p->type == bfd_indirect_link_order) | |
4326 | o->reloc_count += p->u.indirect.section->reloc_count; | |
a3a33af3 ILT |
4327 | else if (p->type == bfd_section_reloc_link_order |
4328 | || p->type == bfd_symbol_reloc_link_order) | |
4329 | ++o->reloc_count; | |
966e0a16 | 4330 | } |
3f048f7f ILT |
4331 | } |
4332 | ||
4333 | /* Compute the reloc and symbol file positions. */ | |
4334 | ecoff_compute_reloc_file_positions (abfd); | |
4335 | ||
4336 | /* Write out the debugging information. */ | |
4337 | if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug, | |
4338 | &backend->debug_swap, info, | |
4339 | ecoff_data (abfd)->sym_filepos)) | |
4340 | return false; | |
966e0a16 | 4341 | |
3f048f7f | 4342 | bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info); |
966e0a16 | 4343 | |
3f048f7f ILT |
4344 | if (info->relocateable) |
4345 | { | |
966e0a16 ILT |
4346 | /* Now reset the reloc_count field of the sections in the output |
4347 | BFD to 0, so that we can use them to keep track of how many | |
4348 | relocs we have output thus far. */ | |
4349 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4350 | o->reloc_count = 0; | |
4351 | } | |
4352 | ||
4353 | /* Get a value for the GP register. */ | |
4354 | if (ecoff_data (abfd)->gp == 0) | |
4355 | { | |
4356 | struct bfd_link_hash_entry *h; | |
4357 | ||
4358 | h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true); | |
4359 | if (h != (struct bfd_link_hash_entry *) NULL | |
4360 | && h->type == bfd_link_hash_defined) | |
4361 | ecoff_data (abfd)->gp = (h->u.def.value | |
4362 | + h->u.def.section->output_section->vma | |
4363 | + h->u.def.section->output_offset); | |
4364 | else if (info->relocateable) | |
4365 | { | |
4366 | bfd_vma lo; | |
4367 | ||
4368 | /* Make up a value. */ | |
4369 | lo = (bfd_vma) -1; | |
4370 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4371 | { | |
4372 | if (o->vma < lo | |
4373 | && (strcmp (o->name, _SBSS) == 0 | |
4374 | || strcmp (o->name, _SDATA) == 0 | |
4375 | || strcmp (o->name, _LIT4) == 0 | |
4376 | || strcmp (o->name, _LIT8) == 0 | |
4377 | || strcmp (o->name, _LITA) == 0)) | |
4378 | lo = o->vma; | |
4379 | } | |
4380 | ecoff_data (abfd)->gp = lo + 0x8000; | |
4381 | } | |
4382 | else | |
4383 | { | |
4384 | /* If the relocate_section function needs to do a reloc | |
4385 | involving the GP value, it should make a reloc_dangerous | |
4386 | callback to warn that GP is not defined. */ | |
4387 | } | |
4388 | } | |
4389 | ||
4390 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4391 | { | |
966e0a16 ILT |
4392 | for (p = o->link_order_head; |
4393 | p != (struct bfd_link_order *) NULL; | |
4394 | p = p->next) | |
4395 | { | |
966e0a16 ILT |
4396 | if (p->type == bfd_indirect_link_order |
4397 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
4398 | == bfd_target_ecoff_flavour)) | |
4399 | { | |
4400 | if (! ecoff_indirect_link_order (abfd, info, o, p)) | |
4401 | return false; | |
4402 | } | |
a3a33af3 ILT |
4403 | else if (p->type == bfd_section_reloc_link_order |
4404 | || p->type == bfd_symbol_reloc_link_order) | |
4405 | { | |
4406 | if (! ecoff_reloc_link_order (abfd, info, o, p)) | |
4407 | return false; | |
4408 | } | |
966e0a16 ILT |
4409 | else |
4410 | { | |
4411 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
4412 | return false; | |
4413 | } | |
4414 | } | |
4415 | } | |
4416 | ||
4417 | bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax; | |
4418 | ||
469984d1 ILT |
4419 | ecoff_data (abfd)->linker = true; |
4420 | ||
966e0a16 ILT |
4421 | return true; |
4422 | } | |
4423 | ||
4424 | /* Accumulate the debugging information for an input BFD into the | |
4425 | output BFD. This must read in the symbolic information of the | |
4426 | input BFD. */ | |
4427 | ||
4428 | static boolean | |
3f048f7f | 4429 | ecoff_final_link_debug_accumulate (output_bfd, input_bfd, info, handle) |
966e0a16 ILT |
4430 | bfd *output_bfd; |
4431 | bfd *input_bfd; | |
4432 | struct bfd_link_info *info; | |
3f048f7f | 4433 | PTR handle; |
966e0a16 ILT |
4434 | { |
4435 | struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info; | |
4436 | const struct ecoff_debug_swap * const swap = | |
4437 | &ecoff_backend (input_bfd)->debug_swap; | |
4438 | HDRR *symhdr = &debug->symbolic_header; | |
4439 | boolean ret; | |
4440 | ||
4441 | #define READ(ptr, offset, count, size, type) \ | |
4442 | if (symhdr->count == 0) \ | |
4443 | debug->ptr = NULL; \ | |
4444 | else \ | |
4445 | { \ | |
80425e6c JK |
4446 | debug->ptr = (type) malloc (size * symhdr->count); \ |
4447 | if (debug->ptr == NULL) \ | |
4448 | { \ | |
4449 | bfd_set_error (bfd_error_no_memory); \ | |
4450 | ret = false; \ | |
4451 | goto return_something; \ | |
4452 | } \ | |
966e0a16 ILT |
4453 | if ((bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) \ |
4454 | != 0) \ | |
4455 | || (bfd_read (debug->ptr, size, symhdr->count, \ | |
4456 | input_bfd) != size * symhdr->count)) \ | |
80425e6c JK |
4457 | { \ |
4458 | ret = false; \ | |
4459 | goto return_something; \ | |
4460 | } \ | |
966e0a16 ILT |
4461 | } |
4462 | ||
a3a33af3 ILT |
4463 | /* If raw_syments is not NULL, then the data was already by read by |
4464 | ecoff_slurp_symbolic_info. */ | |
4465 | if (ecoff_data (input_bfd)->raw_syments == NULL) | |
4466 | { | |
4467 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), | |
4468 | unsigned char *); | |
4469 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR); | |
4470 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR); | |
4471 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR); | |
4472 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR); | |
4473 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), | |
4474 | union aux_ext *); | |
4475 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); | |
4476 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR); | |
4477 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR); | |
4478 | } | |
966e0a16 ILT |
4479 | #undef READ |
4480 | ||
4481 | /* We do not read the external strings or the external symbols. */ | |
4482 | ||
4483 | ret = (bfd_ecoff_debug_accumulate | |
3f048f7f | 4484 | (handle, output_bfd, &ecoff_data (output_bfd)->debug_info, |
966e0a16 | 4485 | &ecoff_backend (output_bfd)->debug_swap, |
3f048f7f | 4486 | input_bfd, debug, swap, info)); |
966e0a16 | 4487 | |
80425e6c | 4488 | return_something: |
a3a33af3 ILT |
4489 | if (ecoff_data (input_bfd)->raw_syments == NULL) |
4490 | { | |
4491 | if (debug->line != NULL) | |
4492 | free (debug->line); | |
4493 | if (debug->external_dnr != NULL) | |
4494 | free (debug->external_dnr); | |
4495 | if (debug->external_pdr != NULL) | |
4496 | free (debug->external_pdr); | |
4497 | if (debug->external_sym != NULL) | |
4498 | free (debug->external_sym); | |
4499 | if (debug->external_opt != NULL) | |
4500 | free (debug->external_opt); | |
4501 | if (debug->external_aux != NULL) | |
4502 | free (debug->external_aux); | |
4503 | if (debug->ss != NULL) | |
4504 | free (debug->ss); | |
4505 | if (debug->external_fdr != NULL) | |
4506 | free (debug->external_fdr); | |
4507 | if (debug->external_rfd != NULL) | |
4508 | free (debug->external_rfd); | |
4509 | ||
4510 | /* Make sure we don't accidentally follow one of these pointers | |
4511 | into freed memory. */ | |
4512 | debug->line = NULL; | |
4513 | debug->external_dnr = NULL; | |
4514 | debug->external_pdr = NULL; | |
4515 | debug->external_sym = NULL; | |
4516 | debug->external_opt = NULL; | |
4517 | debug->external_aux = NULL; | |
4518 | debug->ss = NULL; | |
4519 | debug->external_fdr = NULL; | |
4520 | debug->external_rfd = NULL; | |
4521 | } | |
966e0a16 ILT |
4522 | |
4523 | return ret; | |
4524 | } | |
4525 | ||
4526 | /* Put out information for an external symbol. These come only from | |
4527 | the hash table. */ | |
4528 | ||
4529 | static boolean | |
4530 | ecoff_link_write_external (h, data) | |
4531 | struct ecoff_link_hash_entry *h; | |
4532 | PTR data; | |
4533 | { | |
4534 | bfd *output_bfd = (bfd *) data; | |
4535 | ||
4536 | /* FIXME: We should check if this symbol is being stripped. */ | |
4537 | ||
ac9ed096 | 4538 | if (h->written) |
966e0a16 ILT |
4539 | return true; |
4540 | ||
4541 | if (h->abfd == (bfd *) NULL) | |
4542 | { | |
4543 | h->esym.jmptbl = 0; | |
4544 | h->esym.cobol_main = 0; | |
4545 | h->esym.weakext = 0; | |
4546 | h->esym.reserved = 0; | |
4547 | h->esym.ifd = ifdNil; | |
4548 | h->esym.asym.value = 0; | |
966e0a16 | 4549 | h->esym.asym.st = stGlobal; |
a3a33af3 ILT |
4550 | |
4551 | if (h->root.type != bfd_link_hash_defined) | |
4552 | h->esym.asym.sc = scAbs; | |
4553 | else | |
4554 | { | |
4555 | asection *output_section; | |
4556 | const char *name; | |
4557 | ||
4558 | output_section = h->root.u.def.section->output_section; | |
4559 | name = bfd_section_name (output_section->owner, output_section); | |
4560 | ||
4561 | if (strcmp (name, _TEXT) == 0) | |
4562 | h->esym.asym.sc = scText; | |
4563 | else if (strcmp (name, _DATA) == 0) | |
4564 | h->esym.asym.sc = scData; | |
4565 | else if (strcmp (name, _SDATA) == 0) | |
4566 | h->esym.asym.sc = scSData; | |
4567 | else if (strcmp (name, _RDATA) == 0) | |
4568 | h->esym.asym.sc = scRData; | |
4569 | else if (strcmp (name, _BSS) == 0) | |
4570 | h->esym.asym.sc = scBss; | |
4571 | else if (strcmp (name, _SBSS) == 0) | |
4572 | h->esym.asym.sc = scSBss; | |
4573 | else if (strcmp (name, _INIT) == 0) | |
4574 | h->esym.asym.sc = scInit; | |
4575 | else if (strcmp (name, _FINI) == 0) | |
4576 | h->esym.asym.sc = scFini; | |
4577 | else if (strcmp (name, _PDATA) == 0) | |
4578 | h->esym.asym.sc = scPData; | |
4579 | else if (strcmp (name, _XDATA) == 0) | |
4580 | h->esym.asym.sc = scXData; | |
4581 | else | |
4582 | h->esym.asym.sc = scAbs; | |
4583 | } | |
4584 | ||
966e0a16 ILT |
4585 | h->esym.asym.reserved = 0; |
4586 | h->esym.asym.index = indexNil; | |
4587 | } | |
3f048f7f | 4588 | else if (h->esym.ifd != -1) |
966e0a16 | 4589 | { |
3f048f7f ILT |
4590 | struct ecoff_debug_info *debug; |
4591 | ||
966e0a16 ILT |
4592 | /* Adjust the FDR index for the symbol by that used for the |
4593 | input BFD. */ | |
3f048f7f ILT |
4594 | debug = &ecoff_data (h->abfd)->debug_info; |
4595 | BFD_ASSERT (h->esym.ifd >= 0 | |
4596 | && h->esym.ifd < debug->symbolic_header.ifdMax); | |
4597 | h->esym.ifd = debug->ifdmap[h->esym.ifd]; | |
966e0a16 ILT |
4598 | } |
4599 | ||
4600 | switch (h->root.type) | |
4601 | { | |
4602 | default: | |
4603 | case bfd_link_hash_new: | |
4604 | abort (); | |
4605 | case bfd_link_hash_undefined: | |
4606 | case bfd_link_hash_weak: | |
a3a33af3 ILT |
4607 | if (h->esym.asym.sc != scUndefined |
4608 | && h->esym.asym.sc != scSUndefined) | |
4609 | h->esym.asym.sc = scUndefined; | |
966e0a16 ILT |
4610 | break; |
4611 | case bfd_link_hash_defined: | |
4612 | if (h->esym.asym.sc == scUndefined | |
4613 | || h->esym.asym.sc == scSUndefined) | |
4614 | h->esym.asym.sc = scAbs; | |
4615 | else if (h->esym.asym.sc == scCommon) | |
4616 | h->esym.asym.sc = scBss; | |
4617 | else if (h->esym.asym.sc == scSCommon) | |
4618 | h->esym.asym.sc = scSBss; | |
4619 | h->esym.asym.value = (h->root.u.def.value | |
4620 | + h->root.u.def.section->output_section->vma | |
4621 | + h->root.u.def.section->output_offset); | |
4622 | break; | |
4623 | case bfd_link_hash_common: | |
4624 | if (h->esym.asym.sc != scCommon | |
4625 | && h->esym.asym.sc != scSCommon) | |
4626 | h->esym.asym.sc = scCommon; | |
4627 | h->esym.asym.value = h->root.u.c.size; | |
4628 | break; | |
4629 | case bfd_link_hash_indirect: | |
4630 | case bfd_link_hash_warning: | |
4631 | /* FIXME: Ignore these for now. The circumstances under which | |
4632 | they should be written out are not clear to me. */ | |
4633 | return true; | |
4634 | } | |
4635 | ||
4636 | /* bfd_ecoff_debug_one_external uses iextMax to keep track of the | |
4637 | symbol number. */ | |
4638 | h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax; | |
ac9ed096 | 4639 | h->written = 1; |
966e0a16 ILT |
4640 | |
4641 | return (bfd_ecoff_debug_one_external | |
4642 | (output_bfd, &ecoff_data (output_bfd)->debug_info, | |
4643 | &ecoff_backend (output_bfd)->debug_swap, h->root.root.string, | |
4644 | &h->esym)); | |
4645 | } | |
4646 | ||
4647 | /* Relocate and write an ECOFF section into an ECOFF output file. */ | |
4648 | ||
4649 | static boolean | |
4650 | ecoff_indirect_link_order (output_bfd, info, output_section, link_order) | |
4651 | bfd *output_bfd; | |
4652 | struct bfd_link_info *info; | |
4653 | asection *output_section; | |
4654 | struct bfd_link_order *link_order; | |
4655 | { | |
4656 | asection *input_section; | |
4657 | bfd *input_bfd; | |
a3a33af3 ILT |
4658 | struct ecoff_section_tdata *section_tdata; |
4659 | bfd_size_type raw_size; | |
4660 | bfd_size_type cooked_size; | |
80425e6c | 4661 | bfd_byte *contents = NULL; |
966e0a16 ILT |
4662 | bfd_size_type external_reloc_size; |
4663 | bfd_size_type external_relocs_size; | |
80425e6c | 4664 | PTR external_relocs = NULL; |
966e0a16 ILT |
4665 | |
4666 | BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0); | |
4667 | ||
4668 | if (link_order->size == 0) | |
4669 | return true; | |
4670 | ||
4671 | input_section = link_order->u.indirect.section; | |
4672 | input_bfd = input_section->owner; | |
a3a33af3 ILT |
4673 | section_tdata = ecoff_section_data (input_bfd, input_section); |
4674 | ||
4675 | raw_size = input_section->_raw_size; | |
4676 | cooked_size = input_section->_cooked_size; | |
4677 | if (cooked_size == 0) | |
4678 | cooked_size = raw_size; | |
966e0a16 ILT |
4679 | |
4680 | BFD_ASSERT (input_section->output_section == output_section); | |
4681 | BFD_ASSERT (input_section->output_offset == link_order->offset); | |
a3a33af3 ILT |
4682 | BFD_ASSERT (cooked_size == link_order->size); |
4683 | ||
4684 | /* Get the section contents. We allocate memory for the larger of | |
4685 | the size before relocating and the size after relocating. */ | |
4686 | contents = (bfd_byte *) malloc (raw_size >= cooked_size | |
4687 | ? raw_size | |
4688 | : cooked_size); | |
4689 | if (contents == NULL && raw_size != 0) | |
80425e6c JK |
4690 | { |
4691 | bfd_set_error (bfd_error_no_memory); | |
4692 | goto error_return; | |
4693 | } | |
966e0a16 | 4694 | |
a3a33af3 ILT |
4695 | /* If we are relaxing, the contents may have already been read into |
4696 | memory, in which case we copy them into our new buffer. We don't | |
4697 | simply reuse the old buffer in case cooked_size > raw_size. */ | |
4698 | if (section_tdata != (struct ecoff_section_tdata *) NULL | |
4699 | && section_tdata->contents != (bfd_byte *) NULL) | |
4700 | memcpy (contents, section_tdata->contents, raw_size); | |
4701 | else | |
4702 | { | |
4703 | if (! bfd_get_section_contents (input_bfd, input_section, | |
4704 | (PTR) contents, | |
4705 | (file_ptr) 0, raw_size)) | |
4706 | goto error_return; | |
4707 | } | |
4708 | ||
4709 | /* Get the relocs. If we are relaxing MIPS code, they will already | |
4710 | have been read in. Otherwise, we read them in now. */ | |
966e0a16 ILT |
4711 | external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size; |
4712 | external_relocs_size = external_reloc_size * input_section->reloc_count; | |
a3a33af3 ILT |
4713 | |
4714 | if (section_tdata != (struct ecoff_section_tdata *) NULL) | |
4715 | external_relocs = section_tdata->external_relocs; | |
4716 | else | |
80425e6c | 4717 | { |
a3a33af3 ILT |
4718 | external_relocs = (PTR) malloc (external_relocs_size); |
4719 | if (external_relocs == NULL && external_relocs_size != 0) | |
4720 | { | |
4721 | bfd_set_error (bfd_error_no_memory); | |
4722 | goto error_return; | |
4723 | } | |
80425e6c | 4724 | |
a3a33af3 ILT |
4725 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 |
4726 | || (bfd_read (external_relocs, 1, external_relocs_size, input_bfd) | |
4727 | != external_relocs_size)) | |
4728 | goto error_return; | |
4729 | } | |
966e0a16 ILT |
4730 | |
4731 | /* Relocate the section contents. */ | |
4732 | if (! ((*ecoff_backend (input_bfd)->relocate_section) | |
4733 | (output_bfd, info, input_bfd, input_section, contents, | |
4734 | external_relocs))) | |
80425e6c | 4735 | goto error_return; |
966e0a16 ILT |
4736 | |
4737 | /* Write out the relocated section. */ | |
4738 | if (! bfd_set_section_contents (output_bfd, | |
4739 | output_section, | |
4740 | (PTR) contents, | |
4741 | input_section->output_offset, | |
a3a33af3 | 4742 | cooked_size)) |
80425e6c | 4743 | goto error_return; |
966e0a16 ILT |
4744 | |
4745 | /* If we are producing relocateable output, the relocs were | |
4746 | modified, and we write them out now. We use the reloc_count | |
4747 | field of output_section to keep track of the number of relocs we | |
4748 | have output so far. */ | |
4749 | if (info->relocateable) | |
4750 | { | |
4751 | if (bfd_seek (output_bfd, | |
4752 | (output_section->rel_filepos + | |
4753 | output_section->reloc_count * external_reloc_size), | |
4754 | SEEK_SET) != 0 | |
4755 | || (bfd_write (external_relocs, 1, external_relocs_size, output_bfd) | |
4756 | != external_relocs_size)) | |
80425e6c | 4757 | goto error_return; |
966e0a16 ILT |
4758 | output_section->reloc_count += input_section->reloc_count; |
4759 | } | |
4760 | ||
80425e6c JK |
4761 | if (contents != NULL) |
4762 | free (contents); | |
a3a33af3 | 4763 | if (external_relocs != NULL && section_tdata == NULL) |
80425e6c | 4764 | free (external_relocs); |
966e0a16 | 4765 | return true; |
80425e6c JK |
4766 | |
4767 | error_return: | |
4768 | if (contents != NULL) | |
4769 | free (contents); | |
a3a33af3 | 4770 | if (external_relocs != NULL && section_tdata == NULL) |
80425e6c JK |
4771 | free (external_relocs); |
4772 | return false; | |
966e0a16 | 4773 | } |
a3a33af3 ILT |
4774 | |
4775 | /* Generate a reloc when linking an ECOFF file. This is a reloc | |
4776 | requested by the linker, and does come from any input file. This | |
4777 | is used to build constructor and destructor tables when linking | |
4778 | with -Ur. */ | |
4779 | ||
4780 | static boolean | |
4781 | ecoff_reloc_link_order (output_bfd, info, output_section, link_order) | |
4782 | bfd *output_bfd; | |
4783 | struct bfd_link_info *info; | |
4784 | asection *output_section; | |
4785 | struct bfd_link_order *link_order; | |
4786 | { | |
4787 | arelent rel; | |
4788 | struct internal_reloc in; | |
4789 | bfd_size_type external_reloc_size; | |
4790 | bfd_byte *rbuf; | |
4791 | boolean ok; | |
4792 | ||
4793 | /* We set up an arelent to pass to the backend adjust_reloc_out | |
4794 | routine. */ | |
4795 | rel.address = link_order->offset; | |
4796 | ||
4797 | rel.howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
4798 | if (rel.howto == (const reloc_howto_type *) NULL) | |
4799 | { | |
4800 | bfd_set_error (bfd_error_bad_value); | |
4801 | return false; | |
4802 | } | |
4803 | ||
4804 | if (link_order->type == bfd_section_reloc_link_order) | |
4805 | rel.sym_ptr_ptr = link_order->u.reloc.p->u.section->symbol_ptr_ptr; | |
4806 | else | |
4807 | { | |
4808 | /* We can't set up a reloc against a symbol correctly, because | |
4809 | we have no asymbol structure. Currently no adjust_reloc_out | |
4810 | routine cases. */ | |
4811 | rel.sym_ptr_ptr = (asymbol **) NULL; | |
4812 | } | |
4813 | ||
4814 | /* All ECOFF relocs are in-place. Put the addend into the object | |
4815 | file. */ | |
4816 | ||
4817 | BFD_ASSERT (rel.howto->partial_inplace); | |
4818 | if (link_order->u.reloc.p->addend != 0) | |
4819 | { | |
4820 | bfd_size_type size; | |
4821 | bfd_reloc_status_type rstat; | |
4822 | bfd_byte *buf; | |
4823 | boolean ok; | |
4824 | ||
4825 | size = bfd_get_reloc_size (rel.howto); | |
4826 | buf = (bfd_byte *) bfd_zmalloc (size); | |
4827 | if (buf == (bfd_byte *) NULL) | |
4828 | { | |
4829 | bfd_set_error (bfd_error_no_memory); | |
4830 | return false; | |
4831 | } | |
4832 | rstat = _bfd_relocate_contents (rel.howto, output_bfd, | |
4833 | link_order->u.reloc.p->addend, buf); | |
4834 | switch (rstat) | |
4835 | { | |
4836 | case bfd_reloc_ok: | |
4837 | break; | |
4838 | default: | |
4839 | case bfd_reloc_outofrange: | |
4840 | abort (); | |
4841 | case bfd_reloc_overflow: | |
4842 | if (! ((*info->callbacks->reloc_overflow) | |
4843 | (info, | |
4844 | (link_order->type == bfd_section_reloc_link_order | |
4845 | ? bfd_section_name (output_bfd, | |
4846 | link_order->u.reloc.p->u.section) | |
4847 | : link_order->u.reloc.p->u.name), | |
4848 | rel.howto->name, link_order->u.reloc.p->addend, | |
4849 | (bfd *) NULL, (asection *) NULL, (bfd_vma) 0))) | |
4850 | { | |
4851 | free (buf); | |
4852 | return false; | |
4853 | } | |
4854 | break; | |
4855 | } | |
4856 | ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf, | |
4857 | (file_ptr) link_order->offset, size); | |
4858 | free (buf); | |
4859 | if (! ok) | |
4860 | return false; | |
4861 | } | |
4862 | ||
4863 | rel.addend = 0; | |
4864 | ||
4865 | /* Move the information into a internal_reloc structure. */ | |
4866 | in.r_vaddr = (rel.address | |
4867 | + bfd_get_section_vma (output_bfd, output_section)); | |
4868 | in.r_type = rel.howto->type; | |
4869 | ||
4870 | if (link_order->type == bfd_symbol_reloc_link_order) | |
4871 | { | |
4872 | struct ecoff_link_hash_entry *h; | |
4873 | ||
4874 | h = ecoff_link_hash_lookup (ecoff_hash_table (info), | |
4875 | link_order->u.reloc.p->u.name, | |
4876 | false, false, true); | |
4877 | if (h != (struct ecoff_link_hash_entry *) NULL | |
4878 | && h->indx != -1) | |
4879 | in.r_symndx = h->indx; | |
4880 | else | |
4881 | { | |
4882 | if (! ((*info->callbacks->unattached_reloc) | |
4883 | (info, link_order->u.reloc.p->u.name, (bfd *) NULL, | |
4884 | (asection *) NULL, (bfd_vma) 0))) | |
4885 | return false; | |
4886 | in.r_symndx = 0; | |
4887 | } | |
4888 | in.r_extern = 1; | |
4889 | } | |
4890 | else | |
4891 | { | |
4892 | CONST char *name; | |
4893 | ||
4894 | name = bfd_get_section_name (output_bfd, | |
4895 | link_order->u.reloc.p->u.section); | |
4896 | if (strcmp (name, ".text") == 0) | |
4897 | in.r_symndx = RELOC_SECTION_TEXT; | |
4898 | else if (strcmp (name, ".rdata") == 0) | |
4899 | in.r_symndx = RELOC_SECTION_RDATA; | |
4900 | else if (strcmp (name, ".data") == 0) | |
4901 | in.r_symndx = RELOC_SECTION_DATA; | |
4902 | else if (strcmp (name, ".sdata") == 0) | |
4903 | in.r_symndx = RELOC_SECTION_SDATA; | |
4904 | else if (strcmp (name, ".sbss") == 0) | |
4905 | in.r_symndx = RELOC_SECTION_SBSS; | |
4906 | else if (strcmp (name, ".bss") == 0) | |
4907 | in.r_symndx = RELOC_SECTION_BSS; | |
4908 | else if (strcmp (name, ".init") == 0) | |
4909 | in.r_symndx = RELOC_SECTION_INIT; | |
4910 | else if (strcmp (name, ".lit8") == 0) | |
4911 | in.r_symndx = RELOC_SECTION_LIT8; | |
4912 | else if (strcmp (name, ".lit4") == 0) | |
4913 | in.r_symndx = RELOC_SECTION_LIT4; | |
4914 | else if (strcmp (name, ".xdata") == 0) | |
4915 | in.r_symndx = RELOC_SECTION_XDATA; | |
4916 | else if (strcmp (name, ".pdata") == 0) | |
4917 | in.r_symndx = RELOC_SECTION_PDATA; | |
4918 | else if (strcmp (name, ".fini") == 0) | |
4919 | in.r_symndx = RELOC_SECTION_FINI; | |
4920 | else if (strcmp (name, ".lita") == 0) | |
4921 | in.r_symndx = RELOC_SECTION_LITA; | |
4922 | else if (strcmp (name, "*ABS*") == 0) | |
4923 | in.r_symndx = RELOC_SECTION_ABS; | |
4924 | else | |
4925 | abort (); | |
4926 | in.r_extern = 0; | |
4927 | } | |
4928 | ||
4929 | /* Let the BFD backend adjust the reloc. */ | |
4930 | (*ecoff_backend (output_bfd)->adjust_reloc_out) (output_bfd, &rel, &in); | |
4931 | ||
4932 | /* Get some memory and swap out the reloc. */ | |
4933 | external_reloc_size = ecoff_backend (output_bfd)->external_reloc_size; | |
4934 | rbuf = (bfd_byte *) malloc (external_reloc_size); | |
4935 | if (rbuf == (bfd_byte *) NULL) | |
4936 | { | |
4937 | bfd_set_error (bfd_error_no_memory); | |
4938 | return false; | |
4939 | } | |
4940 | ||
4941 | (*ecoff_backend (output_bfd)->swap_reloc_out) (output_bfd, &in, (PTR) rbuf); | |
4942 | ||
4943 | ok = (bfd_seek (output_bfd, | |
4944 | (output_section->rel_filepos + | |
4945 | output_section->reloc_count * external_reloc_size), | |
4946 | SEEK_SET) == 0 | |
4947 | && (bfd_write ((PTR) rbuf, 1, external_reloc_size, output_bfd) | |
4948 | == external_reloc_size)); | |
4949 | ||
4950 | if (ok) | |
4951 | ++output_section->reloc_count; | |
4952 | ||
4953 | free (rbuf); | |
4954 | ||
4955 | return ok; | |
4956 | } |