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dae31cf5 ILT |
1 | /* Generic ECOFF (Extended-COFF) routines. |
2 | Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc. | |
3 | Original version by Per Bothner. | |
4 | Full support added by Ian Lance Taylor, ian@cygnus.com. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
4c3721d5 | 24 | #include "bfdlink.h" |
dae31cf5 | 25 | #include "libbfd.h" |
dae31cf5 ILT |
26 | #include "aout/ar.h" |
27 | #include "aout/ranlib.h" | |
28 | ||
29 | /* FIXME: We need the definitions of N_SET[ADTB], but aout64.h defines | |
30 | some other stuff which we don't want and which conflicts with stuff | |
31 | we do want. */ | |
32 | #include "libaout.h" | |
33 | #include "aout/aout64.h" | |
34 | #undef N_ABS | |
35 | #undef exec_hdr | |
36 | #undef obj_sym_filepos | |
37 | ||
38 | #include "coff/internal.h" | |
39 | #include "coff/sym.h" | |
40 | #include "coff/symconst.h" | |
41 | #include "coff/ecoff.h" | |
42 | #include "libcoff.h" | |
43 | #include "libecoff.h" | |
44 | \f | |
45 | /* Prototypes for static functions. */ | |
46 | ||
a7853216 | 47 | static int ecoff_get_magic PARAMS ((bfd *abfd)); |
966e0a16 | 48 | static boolean ecoff_slurp_symbolic_header PARAMS ((bfd *abfd)); |
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)); | |
52 | static void ecoff_emit_aggregate PARAMS ((bfd *abfd, char *string, | |
53 | RNDXR *rndx, long isym, | |
54 | CONST char *which)); | |
55 | static char *ecoff_type_to_string PARAMS ((bfd *abfd, union aux_ext *aux_ptr, | |
56 | unsigned int indx, int bigendian)); | |
dae31cf5 ILT |
57 | static boolean ecoff_slurp_reloc_table PARAMS ((bfd *abfd, asection *section, |
58 | asymbol **symbols)); | |
dae31cf5 | 59 | static void ecoff_compute_section_file_positions PARAMS ((bfd *abfd)); |
966e0a16 | 60 | static bfd_size_type ecoff_compute_reloc_file_positions PARAMS ((bfd *abfd)); |
8d12f138 ILT |
61 | static boolean ecoff_get_extr PARAMS ((asymbol *, EXTR *)); |
62 | static void ecoff_set_index PARAMS ((asymbol *, bfd_size_type)); | |
dae31cf5 ILT |
63 | static unsigned int ecoff_armap_hash PARAMS ((CONST char *s, |
64 | unsigned int *rehash, | |
65 | unsigned int size, | |
66 | unsigned int hlog)); | |
67 | \f | |
dae31cf5 ILT |
68 | /* This stuff is somewhat copied from coffcode.h. */ |
69 | ||
70 | static asection bfd_debug_section = { "*DEBUG*" }; | |
71 | ||
48edba81 ILT |
72 | /* Create an ECOFF object. */ |
73 | ||
74 | boolean | |
75 | ecoff_mkobject (abfd) | |
76 | bfd *abfd; | |
77 | { | |
78 | abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *) | |
79 | bfd_zalloc (abfd, sizeof (ecoff_data_type))); | |
80 | if (abfd->tdata.ecoff_obj_data == NULL) | |
81 | { | |
d1ad85a6 | 82 | bfd_set_error (bfd_error_no_memory); |
48edba81 ILT |
83 | return false; |
84 | } | |
85 | ||
48edba81 ILT |
86 | return true; |
87 | } | |
88 | ||
a7853216 ILT |
89 | /* This is a hook called by coff_real_object_p to create any backend |
90 | specific information. */ | |
91 | ||
92 | PTR | |
93 | ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
94 | bfd *abfd; | |
95 | PTR filehdr; | |
96 | PTR aouthdr; | |
97 | { | |
98 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
99 | struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr; | |
100 | ecoff_data_type *ecoff; | |
101 | asection *regsec; | |
102 | ||
103 | if (ecoff_mkobject (abfd) == false) | |
104 | return NULL; | |
105 | ||
106 | ecoff = ecoff_data (abfd); | |
107 | ecoff->gp_size = 8; | |
108 | ecoff->sym_filepos = internal_f->f_symptr; | |
109 | ||
110 | /* Create the .reginfo section to give programs outside BFD a way to | |
111 | see the information stored in the a.out header. See the comment | |
112 | in coff/ecoff.h. */ | |
113 | regsec = bfd_make_section (abfd, REGINFO); | |
114 | if (regsec == NULL) | |
115 | return NULL; | |
116 | ||
117 | if (internal_a != (struct internal_aouthdr *) NULL) | |
118 | { | |
119 | int i; | |
120 | ||
121 | ecoff->text_start = internal_a->text_start; | |
122 | ecoff->text_end = internal_a->text_start + internal_a->tsize; | |
123 | ecoff->gp = internal_a->gp_value; | |
124 | ecoff->gprmask = internal_a->gprmask; | |
125 | for (i = 0; i < 4; i++) | |
126 | ecoff->cprmask[i] = internal_a->cprmask[i]; | |
127 | ecoff->fprmask = internal_a->fprmask; | |
128 | if (internal_a->magic == ECOFF_AOUT_ZMAGIC) | |
129 | abfd->flags |= D_PAGED; | |
130 | } | |
131 | ||
132 | /* It turns out that no special action is required by the MIPS or | |
133 | Alpha ECOFF backends. They have different information in the | |
134 | a.out header, but we just copy it all (e.g., gprmask, cprmask and | |
135 | fprmask) and let the swapping routines ensure that only relevant | |
136 | information is written out. */ | |
137 | ||
138 | return (PTR) ecoff; | |
139 | } | |
140 | ||
dae31cf5 ILT |
141 | /* This is a hook needed by SCO COFF, but we have nothing to do. */ |
142 | ||
728472f1 | 143 | /*ARGSUSED*/ |
dae31cf5 ILT |
144 | asection * |
145 | ecoff_make_section_hook (abfd, name) | |
146 | bfd *abfd; | |
147 | char *name; | |
148 | { | |
149 | return (asection *) NULL; | |
150 | } | |
151 | ||
152 | /* Initialize a new section. */ | |
153 | ||
154 | boolean | |
155 | ecoff_new_section_hook (abfd, section) | |
156 | bfd *abfd; | |
157 | asection *section; | |
158 | { | |
3f048f7f ILT |
159 | /* For the .pdata section, which has a special meaning on the Alpha, |
160 | we set the alignment to 8. We correct this later in | |
161 | ecoff_compute_section_file_positions. We do this hackery because | |
162 | we need to know the exact unaligned size of the .pdata section in | |
163 | order to set the lnnoptr field correctly. */ | |
164 | if (strcmp (section->name, _PDATA) == 0) | |
165 | section->alignment_power = 3; | |
166 | else | |
167 | section->alignment_power = abfd->xvec->align_power_min; | |
dae31cf5 ILT |
168 | |
169 | if (strcmp (section->name, _TEXT) == 0) | |
170 | section->flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
171 | else if (strcmp (section->name, _DATA) == 0 | |
172 | || strcmp (section->name, _SDATA) == 0) | |
173 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
174 | else if (strcmp (section->name, _RDATA) == 0 | |
175 | || strcmp (section->name, _LIT8) == 0 | |
176 | || strcmp (section->name, _LIT4) == 0) | |
177 | section->flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
178 | else if (strcmp (section->name, _BSS) == 0 | |
179 | || strcmp (section->name, _SBSS) == 0) | |
180 | section->flags |= SEC_ALLOC; | |
f8ee1ebb ILT |
181 | else if (strcmp (section->name, _LIB) == 0) |
182 | { | |
183 | /* An Irix 4 shared libary. */ | |
184 | section->flags |= SEC_SHARED_LIBRARY; | |
185 | } | |
a7853216 ILT |
186 | else if (strcmp (section->name, REGINFO) == 0) |
187 | { | |
a5a835ff ILT |
188 | /* Setting SEC_SHARED_LIBRARY should make the linker leave the |
189 | section completely alone. */ | |
190 | section->flags |= (SEC_SHARED_LIBRARY | |
191 | | SEC_HAS_CONTENTS | |
192 | | SEC_NEVER_LOAD); | |
a7853216 ILT |
193 | section->_raw_size = sizeof (struct ecoff_reginfo); |
194 | } | |
dae31cf5 ILT |
195 | |
196 | /* Probably any other section name is SEC_NEVER_LOAD, but I'm | |
197 | uncertain about .init on some systems and I don't know how shared | |
198 | libraries work. */ | |
199 | ||
200 | return true; | |
201 | } | |
202 | ||
a7853216 ILT |
203 | /* Determine the machine architecture and type. This is called from |
204 | the generic COFF routines. It is the inverse of ecoff_get_magic, | |
205 | below. This could be an ECOFF backend routine, with one version | |
206 | for each target, but there aren't all that many ECOFF targets. */ | |
dae31cf5 ILT |
207 | |
208 | boolean | |
209 | ecoff_set_arch_mach_hook (abfd, filehdr) | |
210 | bfd *abfd; | |
211 | PTR filehdr; | |
212 | { | |
213 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
214 | enum bfd_architecture arch; | |
a7853216 | 215 | unsigned long mach; |
dae31cf5 ILT |
216 | |
217 | switch (internal_f->f_magic) | |
218 | { | |
219 | case MIPS_MAGIC_1: | |
220 | case MIPS_MAGIC_LITTLE: | |
221 | case MIPS_MAGIC_BIG: | |
222 | arch = bfd_arch_mips; | |
a7853216 ILT |
223 | mach = 3000; |
224 | break; | |
225 | ||
226 | case MIPS_MAGIC_LITTLE2: | |
227 | case MIPS_MAGIC_BIG2: | |
228 | /* MIPS ISA level 2: the r6000 */ | |
229 | arch = bfd_arch_mips; | |
230 | mach = 6000; | |
231 | break; | |
232 | ||
233 | case MIPS_MAGIC_LITTLE3: | |
234 | case MIPS_MAGIC_BIG3: | |
235 | /* MIPS ISA level 3: the r4000 */ | |
236 | arch = bfd_arch_mips; | |
237 | mach = 4000; | |
dae31cf5 ILT |
238 | break; |
239 | ||
240 | case ALPHA_MAGIC: | |
241 | arch = bfd_arch_alpha; | |
a7853216 | 242 | mach = 0; |
dae31cf5 ILT |
243 | break; |
244 | ||
245 | default: | |
246 | arch = bfd_arch_obscure; | |
a7853216 | 247 | mach = 0; |
dae31cf5 ILT |
248 | break; |
249 | } | |
250 | ||
a7853216 ILT |
251 | return bfd_default_set_arch_mach (abfd, arch, mach); |
252 | } | |
dae31cf5 | 253 | |
a7853216 ILT |
254 | /* Get the magic number to use based on the architecture and machine. |
255 | This is the inverse of ecoff_set_arch_mach_hook, above. */ | |
256 | ||
257 | static int | |
258 | ecoff_get_magic (abfd) | |
259 | bfd *abfd; | |
260 | { | |
261 | int big, little; | |
262 | ||
263 | switch (bfd_get_arch (abfd)) | |
264 | { | |
265 | case bfd_arch_mips: | |
266 | switch (bfd_get_mach (abfd)) | |
267 | { | |
268 | default: | |
269 | case 0: | |
270 | case 3000: | |
271 | big = MIPS_MAGIC_BIG; | |
272 | little = MIPS_MAGIC_LITTLE; | |
273 | break; | |
274 | ||
275 | case 6000: | |
276 | big = MIPS_MAGIC_BIG2; | |
277 | little = MIPS_MAGIC_LITTLE2; | |
278 | break; | |
279 | ||
280 | case 4000: | |
281 | big = MIPS_MAGIC_BIG3; | |
282 | little = MIPS_MAGIC_LITTLE3; | |
283 | break; | |
284 | } | |
285 | ||
286 | return abfd->xvec->byteorder_big_p ? big : little; | |
287 | ||
288 | case bfd_arch_alpha: | |
289 | return ALPHA_MAGIC; | |
290 | ||
291 | default: | |
292 | abort (); | |
293 | return 0; | |
294 | } | |
dae31cf5 ILT |
295 | } |
296 | ||
297 | /* Get the section s_flags to use for a section. */ | |
298 | ||
299 | long | |
300 | ecoff_sec_to_styp_flags (name, flags) | |
301 | CONST char *name; | |
302 | flagword flags; | |
303 | { | |
304 | long styp; | |
305 | ||
306 | styp = 0; | |
307 | ||
308 | if (strcmp (name, _TEXT) == 0) | |
309 | styp = STYP_TEXT; | |
310 | else if (strcmp (name, _DATA) == 0) | |
311 | styp = STYP_DATA; | |
312 | else if (strcmp (name, _SDATA) == 0) | |
313 | styp = STYP_SDATA; | |
314 | else if (strcmp (name, _RDATA) == 0) | |
315 | styp = STYP_RDATA; | |
c9668c58 ILT |
316 | else if (strcmp (name, _LITA) == 0) |
317 | styp = STYP_LITA; | |
dae31cf5 ILT |
318 | else if (strcmp (name, _LIT8) == 0) |
319 | styp = STYP_LIT8; | |
320 | else if (strcmp (name, _LIT4) == 0) | |
321 | styp = STYP_LIT4; | |
322 | else if (strcmp (name, _BSS) == 0) | |
323 | styp = STYP_BSS; | |
324 | else if (strcmp (name, _SBSS) == 0) | |
325 | styp = STYP_SBSS; | |
326 | else if (strcmp (name, _INIT) == 0) | |
327 | styp = STYP_ECOFF_INIT; | |
a7853216 ILT |
328 | else if (strcmp (name, _FINI) == 0) |
329 | styp = STYP_ECOFF_FINI; | |
966e0a16 ILT |
330 | else if (strcmp (name, _PDATA) == 0) |
331 | styp = STYP_PDATA; | |
332 | else if (strcmp (name, _XDATA) == 0) | |
333 | styp = STYP_XDATA; | |
f8ee1ebb ILT |
334 | else if (strcmp (name, _LIB) == 0) |
335 | styp = STYP_ECOFF_LIB; | |
dae31cf5 ILT |
336 | else if (flags & SEC_CODE) |
337 | styp = STYP_TEXT; | |
338 | else if (flags & SEC_DATA) | |
339 | styp = STYP_DATA; | |
340 | else if (flags & SEC_READONLY) | |
341 | styp = STYP_RDATA; | |
342 | else if (flags & SEC_LOAD) | |
343 | styp = STYP_REG; | |
344 | else | |
345 | styp = STYP_BSS; | |
346 | ||
347 | if (flags & SEC_NEVER_LOAD) | |
348 | styp |= STYP_NOLOAD; | |
349 | ||
350 | return styp; | |
351 | } | |
352 | ||
353 | /* Get the BFD flags to use for a section. */ | |
354 | ||
728472f1 | 355 | /*ARGSUSED*/ |
dae31cf5 ILT |
356 | flagword |
357 | ecoff_styp_to_sec_flags (abfd, hdr) | |
358 | bfd *abfd; | |
359 | PTR hdr; | |
360 | { | |
361 | struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr; | |
362 | long styp_flags = internal_s->s_flags; | |
363 | flagword sec_flags=0; | |
364 | ||
365 | if (styp_flags & STYP_NOLOAD) | |
366 | sec_flags |= SEC_NEVER_LOAD; | |
367 | ||
368 | /* For 386 COFF, at least, an unloadable text or data section is | |
369 | actually a shared library section. */ | |
370 | if ((styp_flags & STYP_TEXT) | |
a7853216 ILT |
371 | || (styp_flags & STYP_ECOFF_INIT) |
372 | || (styp_flags & STYP_ECOFF_FINI)) | |
dae31cf5 ILT |
373 | { |
374 | if (sec_flags & SEC_NEVER_LOAD) | |
375 | sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY; | |
376 | else | |
377 | sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC; | |
378 | } | |
379 | else if ((styp_flags & STYP_DATA) | |
380 | || (styp_flags & STYP_RDATA) | |
a3a33af3 ILT |
381 | || (styp_flags & STYP_SDATA) |
382 | || styp_flags == STYP_PDATA | |
383 | || styp_flags == STYP_XDATA) | |
dae31cf5 ILT |
384 | { |
385 | if (sec_flags & SEC_NEVER_LOAD) | |
386 | sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY; | |
387 | else | |
388 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC; | |
a3a33af3 ILT |
389 | if ((styp_flags & STYP_RDATA) |
390 | || styp_flags == STYP_PDATA) | |
dae31cf5 ILT |
391 | sec_flags |= SEC_READONLY; |
392 | } | |
393 | else if ((styp_flags & STYP_BSS) | |
394 | || (styp_flags & STYP_SBSS)) | |
395 | { | |
396 | sec_flags |= SEC_ALLOC; | |
397 | } | |
a3a33af3 | 398 | else if ((styp_flags & STYP_INFO) || styp_flags == STYP_COMMENT) |
dae31cf5 ILT |
399 | { |
400 | sec_flags |= SEC_NEVER_LOAD; | |
401 | } | |
c9668c58 ILT |
402 | else if ((styp_flags & STYP_LITA) |
403 | || (styp_flags & STYP_LIT8) | |
dae31cf5 ILT |
404 | || (styp_flags & STYP_LIT4)) |
405 | { | |
406 | sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_READONLY; | |
407 | } | |
f8ee1ebb ILT |
408 | else if (styp_flags & STYP_ECOFF_LIB) |
409 | { | |
410 | sec_flags |= SEC_SHARED_LIBRARY; | |
411 | } | |
dae31cf5 ILT |
412 | else |
413 | { | |
414 | sec_flags |= SEC_ALLOC | SEC_LOAD; | |
415 | } | |
416 | ||
417 | return sec_flags; | |
418 | } | |
419 | \f | |
420 | /* Routines to swap auxiliary information in and out. I am assuming | |
421 | that the auxiliary information format is always going to be target | |
422 | independent. */ | |
423 | ||
424 | /* Swap in a type information record. | |
425 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
426 | info comes from the file header record (fh-fBigendian). */ | |
427 | ||
428 | void | |
429 | ecoff_swap_tir_in (bigend, ext_copy, intern) | |
430 | int bigend; | |
431 | struct tir_ext *ext_copy; | |
432 | TIR *intern; | |
433 | { | |
434 | struct tir_ext ext[1]; | |
435 | ||
436 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
437 | ||
438 | /* now the fun stuff... */ | |
439 | if (bigend) { | |
440 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_BIG); | |
441 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_BIG); | |
442 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_BIG) | |
443 | >> TIR_BITS1_BT_SH_BIG; | |
444 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_BIG) | |
445 | >> TIR_BITS_TQ4_SH_BIG; | |
446 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_BIG) | |
447 | >> TIR_BITS_TQ5_SH_BIG; | |
448 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_BIG) | |
449 | >> TIR_BITS_TQ0_SH_BIG; | |
450 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_BIG) | |
451 | >> TIR_BITS_TQ1_SH_BIG; | |
452 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_BIG) | |
453 | >> TIR_BITS_TQ2_SH_BIG; | |
454 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_BIG) | |
455 | >> TIR_BITS_TQ3_SH_BIG; | |
456 | } else { | |
457 | intern->fBitfield = 0 != (ext->t_bits1[0] & TIR_BITS1_FBITFIELD_LITTLE); | |
458 | intern->continued = 0 != (ext->t_bits1[0] & TIR_BITS1_CONTINUED_LITTLE); | |
459 | intern->bt = (ext->t_bits1[0] & TIR_BITS1_BT_LITTLE) | |
460 | >> TIR_BITS1_BT_SH_LITTLE; | |
461 | intern->tq4 = (ext->t_tq45[0] & TIR_BITS_TQ4_LITTLE) | |
462 | >> TIR_BITS_TQ4_SH_LITTLE; | |
463 | intern->tq5 = (ext->t_tq45[0] & TIR_BITS_TQ5_LITTLE) | |
464 | >> TIR_BITS_TQ5_SH_LITTLE; | |
465 | intern->tq0 = (ext->t_tq01[0] & TIR_BITS_TQ0_LITTLE) | |
466 | >> TIR_BITS_TQ0_SH_LITTLE; | |
467 | intern->tq1 = (ext->t_tq01[0] & TIR_BITS_TQ1_LITTLE) | |
468 | >> TIR_BITS_TQ1_SH_LITTLE; | |
469 | intern->tq2 = (ext->t_tq23[0] & TIR_BITS_TQ2_LITTLE) | |
470 | >> TIR_BITS_TQ2_SH_LITTLE; | |
471 | intern->tq3 = (ext->t_tq23[0] & TIR_BITS_TQ3_LITTLE) | |
472 | >> TIR_BITS_TQ3_SH_LITTLE; | |
473 | } | |
474 | ||
475 | #ifdef TEST | |
476 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
477 | abort(); | |
478 | #endif | |
479 | } | |
480 | ||
481 | /* Swap out a type information record. | |
482 | BIGEND says whether AUX symbols are big-endian or little-endian; this | |
483 | info comes from the file header record (fh-fBigendian). */ | |
484 | ||
485 | void | |
486 | ecoff_swap_tir_out (bigend, intern_copy, ext) | |
487 | int bigend; | |
488 | TIR *intern_copy; | |
489 | struct tir_ext *ext; | |
490 | { | |
491 | TIR intern[1]; | |
492 | ||
493 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
494 | ||
495 | /* now the fun stuff... */ | |
496 | if (bigend) { | |
497 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_BIG : 0) | |
498 | | (intern->continued ? TIR_BITS1_CONTINUED_BIG : 0) | |
499 | | ((intern->bt << TIR_BITS1_BT_SH_BIG) | |
500 | & TIR_BITS1_BT_BIG)); | |
501 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_BIG) | |
502 | & TIR_BITS_TQ4_BIG) | |
503 | | ((intern->tq5 << TIR_BITS_TQ5_SH_BIG) | |
504 | & TIR_BITS_TQ5_BIG)); | |
505 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_BIG) | |
506 | & TIR_BITS_TQ0_BIG) | |
507 | | ((intern->tq1 << TIR_BITS_TQ1_SH_BIG) | |
508 | & TIR_BITS_TQ1_BIG)); | |
509 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_BIG) | |
510 | & TIR_BITS_TQ2_BIG) | |
511 | | ((intern->tq3 << TIR_BITS_TQ3_SH_BIG) | |
512 | & TIR_BITS_TQ3_BIG)); | |
513 | } else { | |
514 | ext->t_bits1[0] = ((intern->fBitfield ? TIR_BITS1_FBITFIELD_LITTLE : 0) | |
515 | | (intern->continued ? TIR_BITS1_CONTINUED_LITTLE : 0) | |
516 | | ((intern->bt << TIR_BITS1_BT_SH_LITTLE) | |
517 | & TIR_BITS1_BT_LITTLE)); | |
518 | ext->t_tq45[0] = (((intern->tq4 << TIR_BITS_TQ4_SH_LITTLE) | |
519 | & TIR_BITS_TQ4_LITTLE) | |
520 | | ((intern->tq5 << TIR_BITS_TQ5_SH_LITTLE) | |
521 | & TIR_BITS_TQ5_LITTLE)); | |
522 | ext->t_tq01[0] = (((intern->tq0 << TIR_BITS_TQ0_SH_LITTLE) | |
523 | & TIR_BITS_TQ0_LITTLE) | |
524 | | ((intern->tq1 << TIR_BITS_TQ1_SH_LITTLE) | |
525 | & TIR_BITS_TQ1_LITTLE)); | |
526 | ext->t_tq23[0] = (((intern->tq2 << TIR_BITS_TQ2_SH_LITTLE) | |
527 | & TIR_BITS_TQ2_LITTLE) | |
528 | | ((intern->tq3 << TIR_BITS_TQ3_SH_LITTLE) | |
529 | & TIR_BITS_TQ3_LITTLE)); | |
530 | } | |
531 | ||
532 | #ifdef TEST | |
533 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
534 | abort(); | |
535 | #endif | |
536 | } | |
537 | ||
538 | /* Swap in a relative symbol record. BIGEND says whether it is in | |
539 | big-endian or little-endian format.*/ | |
540 | ||
541 | void | |
542 | ecoff_swap_rndx_in (bigend, ext_copy, intern) | |
543 | int bigend; | |
544 | struct rndx_ext *ext_copy; | |
545 | RNDXR *intern; | |
546 | { | |
547 | struct rndx_ext ext[1]; | |
548 | ||
549 | *ext = *ext_copy; /* Make it reasonable to do in-place. */ | |
550 | ||
551 | /* now the fun stuff... */ | |
552 | if (bigend) { | |
553 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_BIG) | |
554 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_BIG) | |
555 | >> RNDX_BITS1_RFD_SH_BIG); | |
556 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_BIG) | |
557 | << RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
558 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_BIG) | |
559 | | (ext->r_bits[3] << RNDX_BITS3_INDEX_SH_LEFT_BIG); | |
560 | } else { | |
561 | intern->rfd = (ext->r_bits[0] << RNDX_BITS0_RFD_SH_LEFT_LITTLE) | |
562 | | ((ext->r_bits[1] & RNDX_BITS1_RFD_LITTLE) | |
563 | << RNDX_BITS1_RFD_SH_LEFT_LITTLE); | |
564 | intern->index = ((ext->r_bits[1] & RNDX_BITS1_INDEX_LITTLE) | |
565 | >> RNDX_BITS1_INDEX_SH_LITTLE) | |
566 | | (ext->r_bits[2] << RNDX_BITS2_INDEX_SH_LEFT_LITTLE) | |
68241b2b ILT |
567 | | ((unsigned int) ext->r_bits[3] |
568 | << RNDX_BITS3_INDEX_SH_LEFT_LITTLE); | |
dae31cf5 ILT |
569 | } |
570 | ||
571 | #ifdef TEST | |
572 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
573 | abort(); | |
574 | #endif | |
575 | } | |
576 | ||
577 | /* Swap out a relative symbol record. BIGEND says whether it is in | |
578 | big-endian or little-endian format.*/ | |
579 | ||
580 | void | |
581 | ecoff_swap_rndx_out (bigend, intern_copy, ext) | |
582 | int bigend; | |
583 | RNDXR *intern_copy; | |
584 | struct rndx_ext *ext; | |
585 | { | |
586 | RNDXR intern[1]; | |
587 | ||
588 | *intern = *intern_copy; /* Make it reasonable to do in-place. */ | |
589 | ||
590 | /* now the fun stuff... */ | |
591 | if (bigend) { | |
592 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_BIG; | |
593 | ext->r_bits[1] = (((intern->rfd << RNDX_BITS1_RFD_SH_BIG) | |
594 | & RNDX_BITS1_RFD_BIG) | |
595 | | ((intern->index >> RNDX_BITS1_INDEX_SH_LEFT_BIG) | |
596 | & RNDX_BITS1_INDEX_BIG)); | |
597 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_BIG; | |
598 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_BIG; | |
599 | } else { | |
600 | ext->r_bits[0] = intern->rfd >> RNDX_BITS0_RFD_SH_LEFT_LITTLE; | |
601 | ext->r_bits[1] = (((intern->rfd >> RNDX_BITS1_RFD_SH_LEFT_LITTLE) | |
602 | & RNDX_BITS1_RFD_LITTLE) | |
603 | | ((intern->index << RNDX_BITS1_INDEX_SH_LITTLE) | |
604 | & RNDX_BITS1_INDEX_LITTLE)); | |
605 | ext->r_bits[2] = intern->index >> RNDX_BITS2_INDEX_SH_LEFT_LITTLE; | |
606 | ext->r_bits[3] = intern->index >> RNDX_BITS3_INDEX_SH_LEFT_LITTLE; | |
607 | } | |
608 | ||
609 | #ifdef TEST | |
610 | if (memcmp ((char *)ext, (char *)intern, sizeof (*intern)) != 0) | |
611 | abort(); | |
612 | #endif | |
613 | } | |
614 | \f | |
966e0a16 | 615 | /* Read in the symbolic header for an ECOFF object file. */ |
dae31cf5 | 616 | |
966e0a16 ILT |
617 | static boolean |
618 | ecoff_slurp_symbolic_header (abfd) | |
dae31cf5 ILT |
619 | bfd *abfd; |
620 | { | |
621 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
622 | bfd_size_type external_hdr_size; | |
80425e6c | 623 | PTR raw = NULL; |
966e0a16 | 624 | HDRR *internal_symhdr; |
dae31cf5 | 625 | |
966e0a16 ILT |
626 | /* See if we've already read it in. */ |
627 | if (ecoff_data (abfd)->debug_info.symbolic_header.magic == | |
628 | backend->debug_swap.sym_magic) | |
dae31cf5 | 629 | return true; |
966e0a16 ILT |
630 | |
631 | /* See whether there is a symbolic header. */ | |
dae31cf5 ILT |
632 | if (ecoff_data (abfd)->sym_filepos == 0) |
633 | { | |
634 | bfd_get_symcount (abfd) = 0; | |
635 | return true; | |
636 | } | |
637 | ||
638 | /* At this point bfd_get_symcount (abfd) holds the number of symbols | |
639 | as read from the file header, but on ECOFF this is always the | |
640 | size of the symbolic information header. It would be cleaner to | |
641 | handle this when we first read the file in coffgen.c. */ | |
c9668c58 | 642 | external_hdr_size = backend->debug_swap.external_hdr_size; |
dae31cf5 ILT |
643 | if (bfd_get_symcount (abfd) != external_hdr_size) |
644 | { | |
d1ad85a6 | 645 | bfd_set_error (bfd_error_bad_value); |
dae31cf5 ILT |
646 | return false; |
647 | } | |
648 | ||
649 | /* Read the symbolic information header. */ | |
80425e6c JK |
650 | raw = (PTR) malloc ((size_t) external_hdr_size); |
651 | if (raw == NULL) | |
652 | { | |
653 | bfd_set_error (bfd_error_no_memory); | |
654 | goto error_return; | |
655 | } | |
656 | ||
dae31cf5 ILT |
657 | if (bfd_seek (abfd, ecoff_data (abfd)->sym_filepos, SEEK_SET) == -1 |
658 | || (bfd_read (raw, external_hdr_size, 1, abfd) | |
659 | != external_hdr_size)) | |
25057836 | 660 | goto error_return; |
c9668c58 ILT |
661 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; |
662 | (*backend->debug_swap.swap_hdr_in) (abfd, raw, internal_symhdr); | |
dae31cf5 | 663 | |
c9668c58 | 664 | if (internal_symhdr->magic != backend->debug_swap.sym_magic) |
dae31cf5 | 665 | { |
d1ad85a6 | 666 | bfd_set_error (bfd_error_bad_value); |
80425e6c | 667 | goto error_return; |
dae31cf5 ILT |
668 | } |
669 | ||
670 | /* Now we can get the correct number of symbols. */ | |
671 | bfd_get_symcount (abfd) = (internal_symhdr->isymMax | |
672 | + internal_symhdr->iextMax); | |
673 | ||
80425e6c JK |
674 | if (raw != NULL) |
675 | free (raw); | |
966e0a16 | 676 | return true; |
80425e6c JK |
677 | error_return: |
678 | if (raw != NULL) | |
679 | free (raw); | |
680 | return false; | |
966e0a16 ILT |
681 | } |
682 | ||
683 | /* Read in and swap the important symbolic information for an ECOFF | |
684 | object file. This is called by gdb. */ | |
685 | ||
686 | boolean | |
687 | ecoff_slurp_symbolic_info (abfd) | |
688 | bfd *abfd; | |
689 | { | |
690 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
691 | HDRR *internal_symhdr; | |
692 | bfd_size_type raw_base; | |
693 | bfd_size_type raw_size; | |
694 | PTR raw; | |
695 | bfd_size_type external_fdr_size; | |
696 | char *fraw_src; | |
697 | char *fraw_end; | |
698 | struct fdr *fdr_ptr; | |
699 | bfd_size_type raw_end; | |
700 | bfd_size_type cb_end; | |
701 | ||
702 | /* Check whether we've already gotten it, and whether there's any to | |
703 | get. */ | |
704 | if (ecoff_data (abfd)->raw_syments != (PTR) NULL) | |
705 | return true; | |
706 | if (ecoff_data (abfd)->sym_filepos == 0) | |
707 | { | |
708 | bfd_get_symcount (abfd) = 0; | |
709 | return true; | |
710 | } | |
711 | ||
712 | if (! ecoff_slurp_symbolic_header (abfd)) | |
713 | return false; | |
714 | ||
715 | internal_symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
716 | ||
dae31cf5 | 717 | /* Read all the symbolic information at once. */ |
966e0a16 ILT |
718 | raw_base = (ecoff_data (abfd)->sym_filepos |
719 | + backend->debug_swap.external_hdr_size); | |
dae31cf5 | 720 | |
a7853216 ILT |
721 | /* Alpha ecoff makes the determination of raw_size difficult. It has |
722 | an undocumented debug data section between the symhdr and the first | |
723 | documented section. And the ordering of the sections varies between | |
724 | statically and dynamically linked executables. | |
725 | If bfd supports SEEK_END someday, this code could be simplified. */ | |
726 | ||
727 | raw_end = 0; | |
728 | ||
729 | #define UPDATE_RAW_END(start, count, size) \ | |
730 | cb_end = internal_symhdr->start + internal_symhdr->count * (size); \ | |
731 | if (cb_end > raw_end) \ | |
732 | raw_end = cb_end | |
733 | ||
734 | UPDATE_RAW_END (cbLineOffset, cbLine, sizeof (unsigned char)); | |
c9668c58 ILT |
735 | UPDATE_RAW_END (cbDnOffset, idnMax, backend->debug_swap.external_dnr_size); |
736 | UPDATE_RAW_END (cbPdOffset, ipdMax, backend->debug_swap.external_pdr_size); | |
737 | UPDATE_RAW_END (cbSymOffset, isymMax, backend->debug_swap.external_sym_size); | |
738 | UPDATE_RAW_END (cbOptOffset, ioptMax, backend->debug_swap.external_opt_size); | |
a7853216 ILT |
739 | UPDATE_RAW_END (cbAuxOffset, iauxMax, sizeof (union aux_ext)); |
740 | UPDATE_RAW_END (cbSsOffset, issMax, sizeof (char)); | |
741 | UPDATE_RAW_END (cbSsExtOffset, issExtMax, sizeof (char)); | |
c9668c58 ILT |
742 | UPDATE_RAW_END (cbFdOffset, ifdMax, backend->debug_swap.external_fdr_size); |
743 | UPDATE_RAW_END (cbRfdOffset, crfd, backend->debug_swap.external_rfd_size); | |
744 | UPDATE_RAW_END (cbExtOffset, iextMax, backend->debug_swap.external_ext_size); | |
a7853216 ILT |
745 | |
746 | #undef UPDATE_RAW_END | |
747 | ||
748 | raw_size = raw_end - raw_base; | |
dae31cf5 ILT |
749 | if (raw_size == 0) |
750 | { | |
751 | ecoff_data (abfd)->sym_filepos = 0; | |
752 | return true; | |
753 | } | |
754 | raw = (PTR) bfd_alloc (abfd, raw_size); | |
755 | if (raw == NULL) | |
756 | { | |
d1ad85a6 | 757 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
758 | return false; |
759 | } | |
966e0a16 ILT |
760 | if (bfd_seek (abfd, |
761 | (ecoff_data (abfd)->sym_filepos | |
762 | + backend->debug_swap.external_hdr_size), | |
763 | SEEK_SET) != 0 | |
764 | || bfd_read (raw, raw_size, 1, abfd) != raw_size) | |
dae31cf5 | 765 | { |
dae31cf5 ILT |
766 | bfd_release (abfd, raw); |
767 | return false; | |
768 | } | |
769 | ||
dae31cf5 ILT |
770 | ecoff_data (abfd)->raw_syments = raw; |
771 | ||
772 | /* Get pointers for the numeric offsets in the HDRR structure. */ | |
773 | #define FIX(off1, off2, type) \ | |
774 | if (internal_symhdr->off1 == 0) \ | |
c9668c58 | 775 | ecoff_data (abfd)->debug_info.off2 = (type) NULL; \ |
dae31cf5 | 776 | else \ |
c9668c58 ILT |
777 | ecoff_data (abfd)->debug_info.off2 = (type) ((char *) raw \ |
778 | + internal_symhdr->off1 \ | |
779 | - raw_base) | |
dae31cf5 ILT |
780 | FIX (cbLineOffset, line, unsigned char *); |
781 | FIX (cbDnOffset, external_dnr, PTR); | |
782 | FIX (cbPdOffset, external_pdr, PTR); | |
783 | FIX (cbSymOffset, external_sym, PTR); | |
784 | FIX (cbOptOffset, external_opt, PTR); | |
785 | FIX (cbAuxOffset, external_aux, union aux_ext *); | |
786 | FIX (cbSsOffset, ss, char *); | |
787 | FIX (cbSsExtOffset, ssext, char *); | |
788 | FIX (cbFdOffset, external_fdr, PTR); | |
789 | FIX (cbRfdOffset, external_rfd, PTR); | |
790 | FIX (cbExtOffset, external_ext, PTR); | |
791 | #undef FIX | |
792 | ||
793 | /* I don't want to always swap all the data, because it will just | |
794 | waste time and most programs will never look at it. The only | |
795 | time the linker needs most of the debugging information swapped | |
796 | is when linking big-endian and little-endian MIPS object files | |
797 | together, which is not a common occurrence. | |
798 | ||
799 | We need to look at the fdr to deal with a lot of information in | |
800 | the symbols, so we swap them here. */ | |
c9668c58 | 801 | ecoff_data (abfd)->debug_info.fdr = |
dae31cf5 ILT |
802 | (struct fdr *) bfd_alloc (abfd, |
803 | (internal_symhdr->ifdMax * | |
804 | sizeof (struct fdr))); | |
c9668c58 | 805 | if (ecoff_data (abfd)->debug_info.fdr == NULL) |
dae31cf5 | 806 | { |
d1ad85a6 | 807 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
808 | return false; |
809 | } | |
c9668c58 ILT |
810 | external_fdr_size = backend->debug_swap.external_fdr_size; |
811 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; | |
812 | fraw_src = (char *) ecoff_data (abfd)->debug_info.external_fdr; | |
dae31cf5 ILT |
813 | fraw_end = fraw_src + internal_symhdr->ifdMax * external_fdr_size; |
814 | for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++) | |
c9668c58 | 815 | (*backend->debug_swap.swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr); |
dae31cf5 ILT |
816 | |
817 | return true; | |
818 | } | |
819 | \f | |
820 | /* ECOFF symbol table routines. The ECOFF symbol table is described | |
821 | in gcc/mips-tfile.c. */ | |
822 | ||
823 | /* ECOFF uses two common sections. One is the usual one, and the | |
824 | other is for small objects. All the small objects are kept | |
825 | together, and then referenced via the gp pointer, which yields | |
826 | faster assembler code. This is what we use for the small common | |
827 | section. */ | |
828 | static asection ecoff_scom_section; | |
829 | static asymbol ecoff_scom_symbol; | |
830 | static asymbol *ecoff_scom_symbol_ptr; | |
831 | ||
832 | /* Create an empty symbol. */ | |
833 | ||
834 | asymbol * | |
835 | ecoff_make_empty_symbol (abfd) | |
836 | bfd *abfd; | |
837 | { | |
838 | ecoff_symbol_type *new; | |
839 | ||
840 | new = (ecoff_symbol_type *) bfd_alloc (abfd, sizeof (ecoff_symbol_type)); | |
841 | if (new == (ecoff_symbol_type *) NULL) | |
842 | { | |
d1ad85a6 | 843 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
844 | return (asymbol *) NULL; |
845 | } | |
68241b2b | 846 | memset ((PTR) new, 0, sizeof *new); |
dae31cf5 ILT |
847 | new->symbol.section = (asection *) NULL; |
848 | new->fdr = (FDR *) NULL; | |
849 | new->local = false; | |
850 | new->native = NULL; | |
851 | new->symbol.the_bfd = abfd; | |
852 | return &new->symbol; | |
853 | } | |
854 | ||
855 | /* Set the BFD flags and section for an ECOFF symbol. */ | |
856 | ||
9783e04a | 857 | static boolean |
dae31cf5 ILT |
858 | ecoff_set_symbol_info (abfd, ecoff_sym, asym, ext, indirect_ptr_ptr) |
859 | bfd *abfd; | |
860 | SYMR *ecoff_sym; | |
861 | asymbol *asym; | |
862 | int ext; | |
863 | asymbol **indirect_ptr_ptr; | |
864 | { | |
865 | asym->the_bfd = abfd; | |
866 | asym->value = ecoff_sym->value; | |
867 | asym->section = &bfd_debug_section; | |
868 | asym->udata = NULL; | |
869 | ||
870 | /* An indirect symbol requires two consecutive stabs symbols. */ | |
871 | if (*indirect_ptr_ptr != (asymbol *) NULL) | |
872 | { | |
873 | BFD_ASSERT (ECOFF_IS_STAB (ecoff_sym)); | |
874 | ||
875 | /* @@ Stuffing pointers into integers is a no-no. | |
876 | We can usually get away with it if the integer is | |
877 | large enough though. */ | |
878 | if (sizeof (asym) > sizeof (bfd_vma)) | |
879 | abort (); | |
880 | (*indirect_ptr_ptr)->value = (bfd_vma) asym; | |
881 | ||
882 | asym->flags = BSF_DEBUGGING; | |
883 | asym->section = &bfd_und_section; | |
884 | *indirect_ptr_ptr = NULL; | |
9783e04a | 885 | return true; |
dae31cf5 ILT |
886 | } |
887 | ||
888 | if (ECOFF_IS_STAB (ecoff_sym) | |
889 | && (ECOFF_UNMARK_STAB (ecoff_sym->index) | N_EXT) == (N_INDR | N_EXT)) | |
890 | { | |
891 | asym->flags = BSF_DEBUGGING | BSF_INDIRECT; | |
892 | asym->section = &bfd_ind_section; | |
893 | /* Pass this symbol on to the next call to this function. */ | |
894 | *indirect_ptr_ptr = asym; | |
9783e04a | 895 | return true; |
dae31cf5 ILT |
896 | } |
897 | ||
898 | /* Most symbol types are just for debugging. */ | |
899 | switch (ecoff_sym->st) | |
900 | { | |
901 | case stGlobal: | |
902 | case stStatic: | |
903 | case stLabel: | |
904 | case stProc: | |
905 | case stStaticProc: | |
906 | break; | |
907 | case stNil: | |
908 | if (ECOFF_IS_STAB (ecoff_sym)) | |
909 | { | |
910 | asym->flags = BSF_DEBUGGING; | |
9783e04a | 911 | return true; |
dae31cf5 ILT |
912 | } |
913 | break; | |
914 | default: | |
915 | asym->flags = BSF_DEBUGGING; | |
9783e04a | 916 | return true; |
dae31cf5 ILT |
917 | } |
918 | ||
919 | if (ext) | |
920 | asym->flags = BSF_EXPORT | BSF_GLOBAL; | |
921 | else | |
922 | asym->flags = BSF_LOCAL; | |
923 | switch (ecoff_sym->sc) | |
924 | { | |
925 | case scNil: | |
926 | /* Used for compiler generated labels. Leave them in the | |
927 | debugging section, and mark them as local. If BSF_DEBUGGING | |
928 | is set, then nm does not display them for some reason. If no | |
929 | flags are set then the linker whines about them. */ | |
930 | asym->flags = BSF_LOCAL; | |
931 | break; | |
932 | case scText: | |
933 | asym->section = bfd_make_section_old_way (abfd, ".text"); | |
934 | asym->value -= asym->section->vma; | |
935 | break; | |
936 | case scData: | |
937 | asym->section = bfd_make_section_old_way (abfd, ".data"); | |
938 | asym->value -= asym->section->vma; | |
939 | break; | |
940 | case scBss: | |
70bec8b8 ILT |
941 | asym->section = bfd_make_section_old_way (abfd, ".bss"); |
942 | asym->value -= asym->section->vma; | |
dae31cf5 ILT |
943 | break; |
944 | case scRegister: | |
945 | asym->flags = BSF_DEBUGGING; | |
946 | break; | |
947 | case scAbs: | |
948 | asym->section = &bfd_abs_section; | |
949 | break; | |
950 | case scUndefined: | |
951 | asym->section = &bfd_und_section; | |
952 | asym->flags = 0; | |
953 | asym->value = 0; | |
954 | break; | |
955 | case scCdbLocal: | |
956 | case scBits: | |
957 | case scCdbSystem: | |
958 | case scRegImage: | |
959 | case scInfo: | |
960 | case scUserStruct: | |
961 | asym->flags = BSF_DEBUGGING; | |
962 | break; | |
963 | case scSData: | |
964 | asym->section = bfd_make_section_old_way (abfd, ".sdata"); | |
965 | asym->value -= asym->section->vma; | |
966 | break; | |
967 | case scSBss: | |
968 | asym->section = bfd_make_section_old_way (abfd, ".sbss"); | |
70bec8b8 | 969 | asym->value -= asym->section->vma; |
dae31cf5 ILT |
970 | break; |
971 | case scRData: | |
972 | asym->section = bfd_make_section_old_way (abfd, ".rdata"); | |
973 | asym->value -= asym->section->vma; | |
974 | break; | |
975 | case scVar: | |
976 | asym->flags = BSF_DEBUGGING; | |
977 | break; | |
978 | case scCommon: | |
979 | if (asym->value > ecoff_data (abfd)->gp_size) | |
980 | { | |
981 | asym->section = &bfd_com_section; | |
982 | asym->flags = 0; | |
983 | break; | |
984 | } | |
985 | /* Fall through. */ | |
986 | case scSCommon: | |
987 | if (ecoff_scom_section.name == NULL) | |
988 | { | |
989 | /* Initialize the small common section. */ | |
990 | ecoff_scom_section.name = SCOMMON; | |
991 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
992 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
993 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
994 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
995 | ecoff_scom_symbol.name = SCOMMON; | |
996 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
997 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
998 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
999 | } | |
1000 | asym->section = &ecoff_scom_section; | |
1001 | asym->flags = 0; | |
1002 | break; | |
1003 | case scVarRegister: | |
1004 | case scVariant: | |
1005 | asym->flags = BSF_DEBUGGING; | |
1006 | break; | |
1007 | case scSUndefined: | |
1008 | asym->section = &bfd_und_section; | |
1009 | asym->flags = 0; | |
1010 | asym->value = 0; | |
1011 | break; | |
1012 | case scInit: | |
1013 | asym->section = bfd_make_section_old_way (abfd, ".init"); | |
1014 | asym->value -= asym->section->vma; | |
1015 | break; | |
1016 | case scBasedVar: | |
1017 | case scXData: | |
1018 | case scPData: | |
1019 | asym->flags = BSF_DEBUGGING; | |
1020 | break; | |
1021 | case scFini: | |
1022 | asym->section = bfd_make_section_old_way (abfd, ".fini"); | |
1023 | asym->value -= asym->section->vma; | |
1024 | break; | |
1025 | default: | |
1026 | break; | |
1027 | } | |
1028 | ||
1029 | /* Look for special constructors symbols and make relocation entries | |
1030 | in a special construction section. These are produced by the | |
1031 | -fgnu-linker argument to g++. */ | |
1032 | if (ECOFF_IS_STAB (ecoff_sym)) | |
1033 | { | |
1034 | switch (ECOFF_UNMARK_STAB (ecoff_sym->index)) | |
1035 | { | |
1036 | default: | |
1037 | break; | |
1038 | ||
1039 | case N_SETA: | |
1040 | case N_SETT: | |
1041 | case N_SETD: | |
1042 | case N_SETB: | |
1043 | { | |
1044 | const char *name; | |
1045 | asection *section; | |
1046 | arelent_chain *reloc_chain; | |
1047 | unsigned int bitsize; | |
dae31cf5 ILT |
1048 | |
1049 | /* Get a section with the same name as the symbol (usually | |
1050 | __CTOR_LIST__ or __DTOR_LIST__). FIXME: gcc uses the | |
1051 | name ___CTOR_LIST (three underscores). We need | |
1052 | __CTOR_LIST (two underscores), since ECOFF doesn't use | |
1053 | a leading underscore. This should be handled by gcc, | |
1054 | but instead we do it here. Actually, this should all | |
1055 | be done differently anyhow. */ | |
1056 | name = bfd_asymbol_name (asym); | |
1057 | if (name[0] == '_' && name[1] == '_' && name[2] == '_') | |
1058 | { | |
1059 | ++name; | |
1060 | asym->name = name; | |
1061 | } | |
1062 | section = bfd_get_section_by_name (abfd, name); | |
1063 | if (section == (asection *) NULL) | |
1064 | { | |
1065 | char *copy; | |
1066 | ||
1067 | copy = (char *) bfd_alloc (abfd, strlen (name) + 1); | |
9783e04a DM |
1068 | if (!copy) |
1069 | { | |
d1ad85a6 | 1070 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1071 | return false; |
1072 | } | |
dae31cf5 ILT |
1073 | strcpy (copy, name); |
1074 | section = bfd_make_section (abfd, copy); | |
1075 | } | |
1076 | ||
1077 | /* Build a reloc pointing to this constructor. */ | |
1078 | reloc_chain = | |
1079 | (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain)); | |
9783e04a DM |
1080 | if (!reloc_chain) |
1081 | { | |
d1ad85a6 | 1082 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1083 | return false; |
1084 | } | |
dae31cf5 ILT |
1085 | reloc_chain->relent.sym_ptr_ptr = |
1086 | bfd_get_section (asym)->symbol_ptr_ptr; | |
1087 | reloc_chain->relent.address = section->_raw_size; | |
1088 | reloc_chain->relent.addend = asym->value; | |
8f46bac8 ILT |
1089 | reloc_chain->relent.howto = |
1090 | ecoff_backend (abfd)->constructor_reloc; | |
dae31cf5 ILT |
1091 | |
1092 | /* Set up the constructor section to hold the reloc. */ | |
1093 | section->flags = SEC_CONSTRUCTOR; | |
1094 | ++section->reloc_count; | |
1095 | ||
1096 | /* Constructor sections must be rounded to a boundary | |
1097 | based on the bitsize. These are not real sections-- | |
1098 | they are handled specially by the linker--so the ECOFF | |
1099 | 16 byte alignment restriction does not apply. */ | |
8f46bac8 | 1100 | bitsize = ecoff_backend (abfd)->constructor_bitsize; |
dae31cf5 ILT |
1101 | section->alignment_power = 1; |
1102 | while ((1 << section->alignment_power) < bitsize / 8) | |
1103 | ++section->alignment_power; | |
1104 | ||
1105 | reloc_chain->next = section->constructor_chain; | |
1106 | section->constructor_chain = reloc_chain; | |
1107 | section->_raw_size += bitsize / 8; | |
1108 | ||
1109 | /* Mark the symbol as a constructor. */ | |
1110 | asym->flags |= BSF_CONSTRUCTOR; | |
1111 | } | |
1112 | break; | |
1113 | } | |
1114 | } | |
9783e04a | 1115 | return true; |
dae31cf5 ILT |
1116 | } |
1117 | ||
1118 | /* Read an ECOFF symbol table. */ | |
1119 | ||
1120 | boolean | |
1121 | ecoff_slurp_symbol_table (abfd) | |
1122 | bfd *abfd; | |
1123 | { | |
1124 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
c9668c58 ILT |
1125 | const bfd_size_type external_ext_size |
1126 | = backend->debug_swap.external_ext_size; | |
1127 | const bfd_size_type external_sym_size | |
1128 | = backend->debug_swap.external_sym_size; | |
dae31cf5 | 1129 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) |
c9668c58 | 1130 | = backend->debug_swap.swap_ext_in; |
dae31cf5 | 1131 | void (* const swap_sym_in) PARAMS ((bfd *, PTR, SYMR *)) |
c9668c58 | 1132 | = backend->debug_swap.swap_sym_in; |
dae31cf5 ILT |
1133 | bfd_size_type internal_size; |
1134 | ecoff_symbol_type *internal; | |
1135 | ecoff_symbol_type *internal_ptr; | |
1136 | asymbol *indirect_ptr; | |
1137 | char *eraw_src; | |
1138 | char *eraw_end; | |
1139 | FDR *fdr_ptr; | |
1140 | FDR *fdr_end; | |
1141 | ||
1142 | /* If we've already read in the symbol table, do nothing. */ | |
1143 | if (ecoff_data (abfd)->canonical_symbols != NULL) | |
1144 | return true; | |
1145 | ||
1146 | /* Get the symbolic information. */ | |
1147 | if (ecoff_slurp_symbolic_info (abfd) == false) | |
1148 | return false; | |
1149 | if (bfd_get_symcount (abfd) == 0) | |
1150 | return true; | |
1151 | ||
1152 | internal_size = bfd_get_symcount (abfd) * sizeof (ecoff_symbol_type); | |
1153 | internal = (ecoff_symbol_type *) bfd_alloc (abfd, internal_size); | |
1154 | if (internal == NULL) | |
1155 | { | |
d1ad85a6 | 1156 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
1157 | return false; |
1158 | } | |
1159 | ||
1160 | internal_ptr = internal; | |
1161 | indirect_ptr = NULL; | |
c9668c58 | 1162 | eraw_src = (char *) ecoff_data (abfd)->debug_info.external_ext; |
dae31cf5 | 1163 | eraw_end = (eraw_src |
c9668c58 | 1164 | + (ecoff_data (abfd)->debug_info.symbolic_header.iextMax |
dae31cf5 ILT |
1165 | * external_ext_size)); |
1166 | for (; eraw_src < eraw_end; eraw_src += external_ext_size, internal_ptr++) | |
1167 | { | |
1168 | EXTR internal_esym; | |
1169 | ||
1170 | (*swap_ext_in) (abfd, (PTR) eraw_src, &internal_esym); | |
c9668c58 | 1171 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ssext |
dae31cf5 | 1172 | + internal_esym.asym.iss); |
9783e04a DM |
1173 | if (!ecoff_set_symbol_info (abfd, &internal_esym.asym, |
1174 | &internal_ptr->symbol, 1, &indirect_ptr)) | |
1175 | return false; | |
48edba81 ILT |
1176 | /* The alpha uses a negative ifd field for section symbols. */ |
1177 | if (internal_esym.ifd >= 0) | |
c9668c58 ILT |
1178 | internal_ptr->fdr = (ecoff_data (abfd)->debug_info.fdr |
1179 | + internal_esym.ifd); | |
48edba81 ILT |
1180 | else |
1181 | internal_ptr->fdr = NULL; | |
dae31cf5 ILT |
1182 | internal_ptr->local = false; |
1183 | internal_ptr->native = (PTR) eraw_src; | |
1184 | } | |
1185 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1186 | ||
1187 | /* The local symbols must be accessed via the fdr's, because the | |
1188 | string and aux indices are relative to the fdr information. */ | |
c9668c58 ILT |
1189 | fdr_ptr = ecoff_data (abfd)->debug_info.fdr; |
1190 | fdr_end = fdr_ptr + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
dae31cf5 ILT |
1191 | for (; fdr_ptr < fdr_end; fdr_ptr++) |
1192 | { | |
1193 | char *lraw_src; | |
1194 | char *lraw_end; | |
1195 | ||
c9668c58 | 1196 | lraw_src = ((char *) ecoff_data (abfd)->debug_info.external_sym |
dae31cf5 ILT |
1197 | + fdr_ptr->isymBase * external_sym_size); |
1198 | lraw_end = lraw_src + fdr_ptr->csym * external_sym_size; | |
1199 | for (; | |
1200 | lraw_src < lraw_end; | |
1201 | lraw_src += external_sym_size, internal_ptr++) | |
1202 | { | |
1203 | SYMR internal_sym; | |
1204 | ||
1205 | (*swap_sym_in) (abfd, (PTR) lraw_src, &internal_sym); | |
c9668c58 | 1206 | internal_ptr->symbol.name = (ecoff_data (abfd)->debug_info.ss |
dae31cf5 ILT |
1207 | + fdr_ptr->issBase |
1208 | + internal_sym.iss); | |
9783e04a DM |
1209 | if (!ecoff_set_symbol_info (abfd, &internal_sym, |
1210 | &internal_ptr->symbol, 0, &indirect_ptr)) | |
1211 | return false; | |
dae31cf5 ILT |
1212 | internal_ptr->fdr = fdr_ptr; |
1213 | internal_ptr->local = true; | |
1214 | internal_ptr->native = (PTR) lraw_src; | |
1215 | } | |
1216 | } | |
1217 | BFD_ASSERT (indirect_ptr == (asymbol *) NULL); | |
1218 | ||
1219 | ecoff_data (abfd)->canonical_symbols = internal; | |
1220 | ||
1221 | return true; | |
1222 | } | |
1223 | ||
1224 | /* Return the amount of space needed for the canonical symbols. */ | |
1225 | ||
326e32d7 | 1226 | long |
dae31cf5 ILT |
1227 | ecoff_get_symtab_upper_bound (abfd) |
1228 | bfd *abfd; | |
1229 | { | |
326e32d7 ILT |
1230 | if (! ecoff_slurp_symbolic_info (abfd)) |
1231 | return -1; | |
1232 | ||
1233 | if (bfd_get_symcount (abfd) == 0) | |
dae31cf5 ILT |
1234 | return 0; |
1235 | ||
1236 | return (bfd_get_symcount (abfd) + 1) * (sizeof (ecoff_symbol_type *)); | |
1237 | } | |
1238 | ||
b59f0276 | 1239 | /* Get the canonical symbols. */ |
dae31cf5 | 1240 | |
326e32d7 | 1241 | long |
dae31cf5 ILT |
1242 | ecoff_get_symtab (abfd, alocation) |
1243 | bfd *abfd; | |
1244 | asymbol **alocation; | |
1245 | { | |
1246 | unsigned int counter = 0; | |
1247 | ecoff_symbol_type *symbase; | |
1248 | ecoff_symbol_type **location = (ecoff_symbol_type **) alocation; | |
1249 | ||
326e32d7 ILT |
1250 | if (ecoff_slurp_symbol_table (abfd) == false) |
1251 | return -1; | |
1252 | if (bfd_get_symcount (abfd) == 0) | |
dae31cf5 ILT |
1253 | return 0; |
1254 | ||
1255 | symbase = ecoff_data (abfd)->canonical_symbols; | |
1256 | while (counter < bfd_get_symcount (abfd)) | |
1257 | { | |
1258 | *(location++) = symbase++; | |
1259 | counter++; | |
1260 | } | |
1261 | *location++ = (ecoff_symbol_type *) NULL; | |
1262 | return bfd_get_symcount (abfd); | |
1263 | } | |
1264 | ||
1265 | /* Turn ECOFF type information into a printable string. | |
1266 | ecoff_emit_aggregate and ecoff_type_to_string are from | |
1267 | gcc/mips-tdump.c, with swapping added and used_ptr removed. */ | |
1268 | ||
1269 | /* Write aggregate information to a string. */ | |
1270 | ||
1271 | static void | |
1272 | ecoff_emit_aggregate (abfd, string, rndx, isym, which) | |
1273 | bfd *abfd; | |
1274 | char *string; | |
1275 | RNDXR *rndx; | |
1276 | long isym; | |
1277 | CONST char *which; | |
1278 | { | |
1279 | int ifd = rndx->rfd; | |
1280 | int indx = rndx->index; | |
1281 | int sym_base, ss_base; | |
1282 | CONST char *name; | |
1283 | ||
1284 | if (ifd == 0xfff) | |
1285 | ifd = isym; | |
1286 | ||
c9668c58 ILT |
1287 | sym_base = ecoff_data (abfd)->debug_info.fdr[ifd].isymBase; |
1288 | ss_base = ecoff_data (abfd)->debug_info.fdr[ifd].issBase; | |
dae31cf5 ILT |
1289 | |
1290 | if (indx == indexNil) | |
1291 | name = "/* no name */"; | |
1292 | else | |
1293 | { | |
c9668c58 ILT |
1294 | const struct ecoff_debug_swap * const debug_swap |
1295 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
1296 | SYMR sym; |
1297 | ||
1298 | indx += sym_base; | |
c9668c58 ILT |
1299 | (*debug_swap->swap_sym_in) |
1300 | (abfd, | |
1301 | ((char *) ecoff_data (abfd)->debug_info.external_sym | |
1302 | + indx * debug_swap->external_sym_size), | |
1303 | &sym); | |
1304 | name = ecoff_data (abfd)->debug_info.ss + ss_base + sym.iss; | |
dae31cf5 ILT |
1305 | } |
1306 | ||
1307 | sprintf (string, | |
c9668c58 | 1308 | "%s %s { ifd = %d, index = %ld }", |
dae31cf5 | 1309 | which, name, ifd, |
c9668c58 ILT |
1310 | ((long) indx |
1311 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax)); | |
dae31cf5 ILT |
1312 | } |
1313 | ||
1314 | /* Convert the type information to string format. */ | |
1315 | ||
1316 | static char * | |
1317 | ecoff_type_to_string (abfd, aux_ptr, indx, bigendian) | |
1318 | bfd *abfd; | |
1319 | union aux_ext *aux_ptr; | |
1320 | unsigned int indx; | |
1321 | int bigendian; | |
1322 | { | |
1323 | AUXU u; | |
1324 | struct qual { | |
1325 | unsigned int type; | |
1326 | int low_bound; | |
1327 | int high_bound; | |
1328 | int stride; | |
1329 | } qualifiers[7]; | |
1330 | ||
1331 | unsigned int basic_type; | |
1332 | int i; | |
1333 | static char buffer1[1024]; | |
1334 | static char buffer2[1024]; | |
1335 | char *p1 = buffer1; | |
1336 | char *p2 = buffer2; | |
1337 | RNDXR rndx; | |
1338 | ||
1339 | for (i = 0; i < 7; i++) | |
1340 | { | |
1341 | qualifiers[i].low_bound = 0; | |
1342 | qualifiers[i].high_bound = 0; | |
1343 | qualifiers[i].stride = 0; | |
1344 | } | |
1345 | ||
1346 | if (AUX_GET_ISYM (bigendian, &aux_ptr[indx]) == -1) | |
1347 | return "-1 (no type)"; | |
1348 | ecoff_swap_tir_in (bigendian, &aux_ptr[indx++].a_ti, &u.ti); | |
1349 | ||
1350 | basic_type = u.ti.bt; | |
1351 | qualifiers[0].type = u.ti.tq0; | |
1352 | qualifiers[1].type = u.ti.tq1; | |
1353 | qualifiers[2].type = u.ti.tq2; | |
1354 | qualifiers[3].type = u.ti.tq3; | |
1355 | qualifiers[4].type = u.ti.tq4; | |
1356 | qualifiers[5].type = u.ti.tq5; | |
1357 | qualifiers[6].type = tqNil; | |
1358 | ||
1359 | /* | |
1360 | * Go get the basic type. | |
1361 | */ | |
1362 | switch (basic_type) | |
1363 | { | |
1364 | case btNil: /* undefined */ | |
1365 | strcpy (p1, "nil"); | |
1366 | break; | |
1367 | ||
1368 | case btAdr: /* address - integer same size as pointer */ | |
1369 | strcpy (p1, "address"); | |
1370 | break; | |
1371 | ||
1372 | case btChar: /* character */ | |
1373 | strcpy (p1, "char"); | |
1374 | break; | |
1375 | ||
1376 | case btUChar: /* unsigned character */ | |
1377 | strcpy (p1, "unsigned char"); | |
1378 | break; | |
1379 | ||
1380 | case btShort: /* short */ | |
1381 | strcpy (p1, "short"); | |
1382 | break; | |
1383 | ||
1384 | case btUShort: /* unsigned short */ | |
1385 | strcpy (p1, "unsigned short"); | |
1386 | break; | |
1387 | ||
1388 | case btInt: /* int */ | |
1389 | strcpy (p1, "int"); | |
1390 | break; | |
1391 | ||
1392 | case btUInt: /* unsigned int */ | |
1393 | strcpy (p1, "unsigned int"); | |
1394 | break; | |
1395 | ||
1396 | case btLong: /* long */ | |
1397 | strcpy (p1, "long"); | |
1398 | break; | |
1399 | ||
1400 | case btULong: /* unsigned long */ | |
1401 | strcpy (p1, "unsigned long"); | |
1402 | break; | |
1403 | ||
1404 | case btFloat: /* float (real) */ | |
1405 | strcpy (p1, "float"); | |
1406 | break; | |
1407 | ||
1408 | case btDouble: /* Double (real) */ | |
1409 | strcpy (p1, "double"); | |
1410 | break; | |
1411 | ||
1412 | /* Structures add 1-2 aux words: | |
1413 | 1st word is [ST_RFDESCAPE, offset] pointer to struct def; | |
1414 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1415 | ||
1416 | case btStruct: /* Structure (Record) */ | |
1417 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1418 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
4c3721d5 | 1419 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1420 | "struct"); |
1421 | indx++; /* skip aux words */ | |
1422 | break; | |
1423 | ||
1424 | /* Unions add 1-2 aux words: | |
1425 | 1st word is [ST_RFDESCAPE, offset] pointer to union def; | |
1426 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1427 | ||
1428 | case btUnion: /* Union */ | |
1429 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1430 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
4c3721d5 | 1431 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1432 | "union"); |
1433 | indx++; /* skip aux words */ | |
1434 | break; | |
1435 | ||
1436 | /* Enumerations add 1-2 aux words: | |
1437 | 1st word is [ST_RFDESCAPE, offset] pointer to enum def; | |
1438 | 2nd word is file index if 1st word rfd is ST_RFDESCAPE. */ | |
1439 | ||
1440 | case btEnum: /* Enumeration */ | |
1441 | ecoff_swap_rndx_in (bigendian, &aux_ptr[indx].a_rndx, &rndx); | |
1442 | ecoff_emit_aggregate (abfd, p1, &rndx, | |
4c3721d5 | 1443 | (long) AUX_GET_ISYM (bigendian, &aux_ptr[indx+1]), |
dae31cf5 ILT |
1444 | "enum"); |
1445 | indx++; /* skip aux words */ | |
1446 | break; | |
1447 | ||
1448 | case btTypedef: /* defined via a typedef, isymRef points */ | |
1449 | strcpy (p1, "typedef"); | |
1450 | break; | |
1451 | ||
1452 | case btRange: /* subrange of int */ | |
1453 | strcpy (p1, "subrange"); | |
1454 | break; | |
1455 | ||
1456 | case btSet: /* pascal sets */ | |
1457 | strcpy (p1, "set"); | |
1458 | break; | |
1459 | ||
1460 | case btComplex: /* fortran complex */ | |
1461 | strcpy (p1, "complex"); | |
1462 | break; | |
1463 | ||
1464 | case btDComplex: /* fortran double complex */ | |
1465 | strcpy (p1, "double complex"); | |
1466 | break; | |
1467 | ||
1468 | case btIndirect: /* forward or unnamed typedef */ | |
1469 | strcpy (p1, "forward/unamed typedef"); | |
1470 | break; | |
1471 | ||
1472 | case btFixedDec: /* Fixed Decimal */ | |
1473 | strcpy (p1, "fixed decimal"); | |
1474 | break; | |
1475 | ||
1476 | case btFloatDec: /* Float Decimal */ | |
1477 | strcpy (p1, "float decimal"); | |
1478 | break; | |
1479 | ||
1480 | case btString: /* Varying Length Character String */ | |
1481 | strcpy (p1, "string"); | |
1482 | break; | |
1483 | ||
1484 | case btBit: /* Aligned Bit String */ | |
1485 | strcpy (p1, "bit"); | |
1486 | break; | |
1487 | ||
1488 | case btPicture: /* Picture */ | |
1489 | strcpy (p1, "picture"); | |
1490 | break; | |
1491 | ||
1492 | case btVoid: /* Void */ | |
1493 | strcpy (p1, "void"); | |
1494 | break; | |
1495 | ||
1496 | default: | |
1497 | sprintf (p1, "Unknown basic type %d", (int) basic_type); | |
1498 | break; | |
1499 | } | |
1500 | ||
1501 | p1 += strlen (buffer1); | |
1502 | ||
1503 | /* | |
1504 | * If this is a bitfield, get the bitsize. | |
1505 | */ | |
1506 | if (u.ti.fBitfield) | |
1507 | { | |
1508 | int bitsize; | |
1509 | ||
1510 | bitsize = AUX_GET_WIDTH (bigendian, &aux_ptr[indx++]); | |
1511 | sprintf (p1, " : %d", bitsize); | |
1512 | p1 += strlen (buffer1); | |
1513 | } | |
1514 | ||
1515 | ||
1516 | /* | |
1517 | * Deal with any qualifiers. | |
1518 | */ | |
1519 | if (qualifiers[0].type != tqNil) | |
1520 | { | |
1521 | /* | |
1522 | * Snarf up any array bounds in the correct order. Arrays | |
1523 | * store 5 successive words in the aux. table: | |
1524 | * word 0 RNDXR to type of the bounds (ie, int) | |
1525 | * word 1 Current file descriptor index | |
1526 | * word 2 low bound | |
1527 | * word 3 high bound (or -1 if []) | |
1528 | * word 4 stride size in bits | |
1529 | */ | |
1530 | for (i = 0; i < 7; i++) | |
1531 | { | |
1532 | if (qualifiers[i].type == tqArray) | |
1533 | { | |
1534 | qualifiers[i].low_bound = | |
1535 | AUX_GET_DNLOW (bigendian, &aux_ptr[indx+2]); | |
1536 | qualifiers[i].high_bound = | |
1537 | AUX_GET_DNHIGH (bigendian, &aux_ptr[indx+3]); | |
1538 | qualifiers[i].stride = | |
1539 | AUX_GET_WIDTH (bigendian, &aux_ptr[indx+4]); | |
1540 | indx += 5; | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | /* | |
1545 | * Now print out the qualifiers. | |
1546 | */ | |
1547 | for (i = 0; i < 6; i++) | |
1548 | { | |
1549 | switch (qualifiers[i].type) | |
1550 | { | |
1551 | case tqNil: | |
1552 | case tqMax: | |
1553 | break; | |
1554 | ||
1555 | case tqPtr: | |
1556 | strcpy (p2, "ptr to "); | |
1557 | p2 += sizeof ("ptr to ")-1; | |
1558 | break; | |
1559 | ||
1560 | case tqVol: | |
1561 | strcpy (p2, "volatile "); | |
1562 | p2 += sizeof ("volatile ")-1; | |
1563 | break; | |
1564 | ||
1565 | case tqFar: | |
1566 | strcpy (p2, "far "); | |
1567 | p2 += sizeof ("far ")-1; | |
1568 | break; | |
1569 | ||
1570 | case tqProc: | |
1571 | strcpy (p2, "func. ret. "); | |
1572 | p2 += sizeof ("func. ret. "); | |
1573 | break; | |
1574 | ||
1575 | case tqArray: | |
1576 | { | |
1577 | int first_array = i; | |
1578 | int j; | |
1579 | ||
1580 | /* Print array bounds reversed (ie, in the order the C | |
1581 | programmer writes them). C is such a fun language.... */ | |
1582 | ||
1583 | while (i < 5 && qualifiers[i+1].type == tqArray) | |
1584 | i++; | |
1585 | ||
1586 | for (j = i; j >= first_array; j--) | |
1587 | { | |
1588 | strcpy (p2, "array ["); | |
1589 | p2 += sizeof ("array [")-1; | |
1590 | if (qualifiers[j].low_bound != 0) | |
1591 | sprintf (p2, | |
1592 | "%ld:%ld {%ld bits}", | |
1593 | (long) qualifiers[j].low_bound, | |
1594 | (long) qualifiers[j].high_bound, | |
1595 | (long) qualifiers[j].stride); | |
1596 | ||
1597 | else if (qualifiers[j].high_bound != -1) | |
1598 | sprintf (p2, | |
1599 | "%ld {%ld bits}", | |
1600 | (long) (qualifiers[j].high_bound + 1), | |
1601 | (long) (qualifiers[j].stride)); | |
1602 | ||
1603 | else | |
1604 | sprintf (p2, " {%ld bits}", (long) (qualifiers[j].stride)); | |
1605 | ||
1606 | p2 += strlen (p2); | |
1607 | strcpy (p2, "] of "); | |
1608 | p2 += sizeof ("] of ")-1; | |
1609 | } | |
1610 | } | |
1611 | break; | |
1612 | } | |
1613 | } | |
1614 | } | |
1615 | ||
1616 | strcpy (p2, buffer1); | |
1617 | return buffer2; | |
1618 | } | |
1619 | ||
1620 | /* Return information about ECOFF symbol SYMBOL in RET. */ | |
1621 | ||
728472f1 | 1622 | /*ARGSUSED*/ |
dae31cf5 ILT |
1623 | void |
1624 | ecoff_get_symbol_info (abfd, symbol, ret) | |
1625 | bfd *abfd; /* Ignored. */ | |
1626 | asymbol *symbol; | |
1627 | symbol_info *ret; | |
1628 | { | |
1629 | bfd_symbol_info (symbol, ret); | |
1630 | } | |
1631 | ||
1632 | /* Print information about an ECOFF symbol. */ | |
1633 | ||
1634 | void | |
1635 | ecoff_print_symbol (abfd, filep, symbol, how) | |
1636 | bfd *abfd; | |
1637 | PTR filep; | |
1638 | asymbol *symbol; | |
1639 | bfd_print_symbol_type how; | |
1640 | { | |
c9668c58 ILT |
1641 | const struct ecoff_debug_swap * const debug_swap |
1642 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
1643 | FILE *file = (FILE *)filep; |
1644 | ||
1645 | switch (how) | |
1646 | { | |
1647 | case bfd_print_symbol_name: | |
1648 | fprintf (file, "%s", symbol->name); | |
1649 | break; | |
1650 | case bfd_print_symbol_more: | |
1651 | if (ecoffsymbol (symbol)->local) | |
1652 | { | |
1653 | SYMR ecoff_sym; | |
1654 | ||
c9668c58 ILT |
1655 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
1656 | &ecoff_sym); | |
dae31cf5 ILT |
1657 | fprintf (file, "ecoff local "); |
1658 | fprintf_vma (file, (bfd_vma) ecoff_sym.value); | |
1659 | fprintf (file, " %x %x", (unsigned) ecoff_sym.st, | |
1660 | (unsigned) ecoff_sym.sc); | |
1661 | } | |
1662 | else | |
1663 | { | |
1664 | EXTR ecoff_ext; | |
1665 | ||
c9668c58 ILT |
1666 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
1667 | &ecoff_ext); | |
dae31cf5 ILT |
1668 | fprintf (file, "ecoff extern "); |
1669 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1670 | fprintf (file, " %x %x", (unsigned) ecoff_ext.asym.st, | |
1671 | (unsigned) ecoff_ext.asym.sc); | |
1672 | } | |
1673 | break; | |
1674 | case bfd_print_symbol_all: | |
1675 | /* Print out the symbols in a reasonable way */ | |
1676 | { | |
1677 | char type; | |
1678 | int pos; | |
1679 | EXTR ecoff_ext; | |
1680 | char jmptbl; | |
1681 | char cobol_main; | |
1682 | char weakext; | |
1683 | ||
1684 | if (ecoffsymbol (symbol)->local) | |
1685 | { | |
c9668c58 ILT |
1686 | (*debug_swap->swap_sym_in) (abfd, ecoffsymbol (symbol)->native, |
1687 | &ecoff_ext.asym); | |
dae31cf5 ILT |
1688 | type = 'l'; |
1689 | pos = ((((char *) ecoffsymbol (symbol)->native | |
c9668c58 ILT |
1690 | - (char *) ecoff_data (abfd)->debug_info.external_sym) |
1691 | / debug_swap->external_sym_size) | |
1692 | + ecoff_data (abfd)->debug_info.symbolic_header.iextMax); | |
dae31cf5 ILT |
1693 | jmptbl = ' '; |
1694 | cobol_main = ' '; | |
1695 | weakext = ' '; | |
1696 | } | |
1697 | else | |
1698 | { | |
c9668c58 ILT |
1699 | (*debug_swap->swap_ext_in) (abfd, ecoffsymbol (symbol)->native, |
1700 | &ecoff_ext); | |
dae31cf5 ILT |
1701 | type = 'e'; |
1702 | pos = (((char *) ecoffsymbol (symbol)->native | |
c9668c58 ILT |
1703 | - (char *) ecoff_data (abfd)->debug_info.external_ext) |
1704 | / debug_swap->external_ext_size); | |
dae31cf5 ILT |
1705 | jmptbl = ecoff_ext.jmptbl ? 'j' : ' '; |
1706 | cobol_main = ecoff_ext.cobol_main ? 'c' : ' '; | |
1707 | weakext = ecoff_ext.weakext ? 'w' : ' '; | |
1708 | } | |
1709 | ||
1710 | fprintf (file, "[%3d] %c ", | |
1711 | pos, type); | |
1712 | fprintf_vma (file, (bfd_vma) ecoff_ext.asym.value); | |
1713 | fprintf (file, " st %x sc %x indx %x %c%c%c %s", | |
1714 | (unsigned) ecoff_ext.asym.st, | |
1715 | (unsigned) ecoff_ext.asym.sc, | |
1716 | (unsigned) ecoff_ext.asym.index, | |
1717 | jmptbl, cobol_main, weakext, | |
1718 | symbol->name); | |
1719 | ||
1720 | if (ecoffsymbol (symbol)->fdr != NULL | |
1721 | && ecoff_ext.asym.index != indexNil) | |
1722 | { | |
1723 | unsigned int indx; | |
1724 | int bigendian; | |
1725 | bfd_size_type sym_base; | |
1726 | union aux_ext *aux_base; | |
1727 | ||
1728 | indx = ecoff_ext.asym.index; | |
1729 | ||
1730 | /* sym_base is used to map the fdr relative indices which | |
1731 | appear in the file to the position number which we are | |
1732 | using. */ | |
1733 | sym_base = ecoffsymbol (symbol)->fdr->isymBase; | |
1734 | if (ecoffsymbol (symbol)->local) | |
c9668c58 ILT |
1735 | sym_base += |
1736 | ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
dae31cf5 ILT |
1737 | |
1738 | /* aux_base is the start of the aux entries for this file; | |
1739 | asym.index is an offset from this. */ | |
c9668c58 | 1740 | aux_base = (ecoff_data (abfd)->debug_info.external_aux |
dae31cf5 ILT |
1741 | + ecoffsymbol (symbol)->fdr->iauxBase); |
1742 | ||
1743 | /* The aux entries are stored in host byte order; the | |
1744 | order is indicated by a bit in the fdr. */ | |
1745 | bigendian = ecoffsymbol (symbol)->fdr->fBigendian; | |
1746 | ||
1747 | /* This switch is basically from gcc/mips-tdump.c */ | |
1748 | switch (ecoff_ext.asym.st) | |
1749 | { | |
1750 | case stNil: | |
1751 | case stLabel: | |
1752 | break; | |
1753 | ||
1754 | case stFile: | |
1755 | case stBlock: | |
1756 | fprintf (file, "\n End+1 symbol: %ld", | |
1757 | (long) (indx + sym_base)); | |
1758 | break; | |
1759 | ||
1760 | case stEnd: | |
1761 | if (ecoff_ext.asym.sc == scText | |
1762 | || ecoff_ext.asym.sc == scInfo) | |
1763 | fprintf (file, "\n First symbol: %ld", | |
1764 | (long) (indx + sym_base)); | |
1765 | else | |
1766 | fprintf (file, "\n First symbol: %ld", | |
1767 | (long) (AUX_GET_ISYM (bigendian, | |
1768 | &aux_base[ecoff_ext.asym.index]) | |
1769 | + sym_base)); | |
1770 | break; | |
1771 | ||
1772 | case stProc: | |
1773 | case stStaticProc: | |
1774 | if (ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1775 | ; | |
1776 | else if (ecoffsymbol (symbol)->local) | |
1777 | fprintf (file, "\n End+1 symbol: %-7ld Type: %s", | |
1778 | (long) (AUX_GET_ISYM (bigendian, | |
1779 | &aux_base[ecoff_ext.asym.index]) | |
1780 | + sym_base), | |
1781 | ecoff_type_to_string (abfd, aux_base, indx + 1, | |
1782 | bigendian)); | |
1783 | else | |
c9668c58 ILT |
1784 | fprintf (file, "\n Local symbol: %ld", |
1785 | ((long) indx | |
1786 | + (long) sym_base | |
1787 | + (ecoff_data (abfd) | |
1788 | ->debug_info.symbolic_header.iextMax))); | |
dae31cf5 ILT |
1789 | break; |
1790 | ||
1791 | default: | |
1792 | if (! ECOFF_IS_STAB (&ecoff_ext.asym)) | |
1793 | fprintf (file, "\n Type: %s", | |
1794 | ecoff_type_to_string (abfd, aux_base, indx, | |
1795 | bigendian)); | |
1796 | break; | |
1797 | } | |
1798 | } | |
1799 | } | |
1800 | break; | |
1801 | } | |
1802 | } | |
1803 | \f | |
dae31cf5 ILT |
1804 | /* Read in the relocs for a section. */ |
1805 | ||
1806 | static boolean | |
1807 | ecoff_slurp_reloc_table (abfd, section, symbols) | |
1808 | bfd *abfd; | |
1809 | asection *section; | |
1810 | asymbol **symbols; | |
1811 | { | |
1812 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
1813 | arelent *internal_relocs; | |
1814 | bfd_size_type external_reloc_size; | |
1815 | bfd_size_type external_relocs_size; | |
1816 | char *external_relocs; | |
1817 | arelent *rptr; | |
1818 | unsigned int i; | |
1819 | ||
1820 | if (section->relocation != (arelent *) NULL | |
1821 | || section->reloc_count == 0 | |
1822 | || (section->flags & SEC_CONSTRUCTOR) != 0) | |
1823 | return true; | |
1824 | ||
1825 | if (ecoff_slurp_symbol_table (abfd) == false) | |
1826 | return false; | |
1827 | ||
1828 | internal_relocs = (arelent *) bfd_alloc (abfd, | |
1829 | (sizeof (arelent) | |
1830 | * section->reloc_count)); | |
1831 | external_reloc_size = backend->external_reloc_size; | |
1832 | external_relocs_size = external_reloc_size * section->reloc_count; | |
1833 | external_relocs = (char *) bfd_alloc (abfd, external_relocs_size); | |
1834 | if (internal_relocs == (arelent *) NULL | |
1835 | || external_relocs == (char *) NULL) | |
1836 | { | |
d1ad85a6 | 1837 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
1838 | return false; |
1839 | } | |
1840 | if (bfd_seek (abfd, section->rel_filepos, SEEK_SET) != 0) | |
1841 | return false; | |
1842 | if (bfd_read (external_relocs, 1, external_relocs_size, abfd) | |
1843 | != external_relocs_size) | |
25057836 | 1844 | return false; |
dae31cf5 ILT |
1845 | |
1846 | for (i = 0, rptr = internal_relocs; i < section->reloc_count; i++, rptr++) | |
1847 | { | |
1848 | struct internal_reloc intern; | |
1849 | ||
1850 | (*backend->swap_reloc_in) (abfd, | |
1851 | external_relocs + i * external_reloc_size, | |
1852 | &intern); | |
1853 | ||
dae31cf5 ILT |
1854 | if (intern.r_extern) |
1855 | { | |
1856 | /* r_symndx is an index into the external symbols. */ | |
1857 | BFD_ASSERT (intern.r_symndx >= 0 | |
1858 | && (intern.r_symndx | |
c9668c58 ILT |
1859 | < (ecoff_data (abfd) |
1860 | ->debug_info.symbolic_header.iextMax))); | |
dae31cf5 ILT |
1861 | rptr->sym_ptr_ptr = symbols + intern.r_symndx; |
1862 | rptr->addend = 0; | |
1863 | } | |
e544ed4f ILT |
1864 | else if (intern.r_symndx == RELOC_SECTION_NONE |
1865 | || intern.r_symndx == RELOC_SECTION_ABS) | |
1866 | { | |
1867 | rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1868 | rptr->addend = 0; | |
1869 | } | |
dae31cf5 ILT |
1870 | else |
1871 | { | |
1872 | CONST char *sec_name; | |
1873 | asection *sec; | |
1874 | ||
1875 | /* r_symndx is a section key. */ | |
1876 | switch (intern.r_symndx) | |
1877 | { | |
1878 | case RELOC_SECTION_TEXT: sec_name = ".text"; break; | |
1879 | case RELOC_SECTION_RDATA: sec_name = ".rdata"; break; | |
1880 | case RELOC_SECTION_DATA: sec_name = ".data"; break; | |
1881 | case RELOC_SECTION_SDATA: sec_name = ".sdata"; break; | |
1882 | case RELOC_SECTION_SBSS: sec_name = ".sbss"; break; | |
1883 | case RELOC_SECTION_BSS: sec_name = ".bss"; break; | |
1884 | case RELOC_SECTION_INIT: sec_name = ".init"; break; | |
1885 | case RELOC_SECTION_LIT8: sec_name = ".lit8"; break; | |
1886 | case RELOC_SECTION_LIT4: sec_name = ".lit4"; break; | |
8f46bac8 ILT |
1887 | case RELOC_SECTION_XDATA: sec_name = ".xdata"; break; |
1888 | case RELOC_SECTION_PDATA: sec_name = ".pdata"; break; | |
c9668c58 | 1889 | case RELOC_SECTION_FINI: sec_name = ".fini"; break; |
8f46bac8 | 1890 | case RELOC_SECTION_LITA: sec_name = ".lita"; break; |
dae31cf5 ILT |
1891 | default: abort (); |
1892 | } | |
1893 | ||
1894 | sec = bfd_get_section_by_name (abfd, sec_name); | |
1895 | if (sec == (asection *) NULL) | |
e544ed4f | 1896 | abort (); |
dae31cf5 ILT |
1897 | rptr->sym_ptr_ptr = sec->symbol_ptr_ptr; |
1898 | ||
1899 | rptr->addend = - bfd_get_section_vma (abfd, sec); | |
dae31cf5 ILT |
1900 | } |
1901 | ||
1902 | rptr->address = intern.r_vaddr - bfd_get_section_vma (abfd, section); | |
dae31cf5 | 1903 | |
8f46bac8 ILT |
1904 | /* Let the backend select the howto field and do any other |
1905 | required processing. */ | |
c9668c58 | 1906 | (*backend->adjust_reloc_in) (abfd, &intern, rptr); |
dae31cf5 ILT |
1907 | } |
1908 | ||
1909 | bfd_release (abfd, external_relocs); | |
1910 | ||
1911 | section->relocation = internal_relocs; | |
1912 | ||
1913 | return true; | |
1914 | } | |
1915 | ||
1916 | /* Get a canonical list of relocs. */ | |
1917 | ||
326e32d7 | 1918 | long |
dae31cf5 ILT |
1919 | ecoff_canonicalize_reloc (abfd, section, relptr, symbols) |
1920 | bfd *abfd; | |
1921 | asection *section; | |
1922 | arelent **relptr; | |
1923 | asymbol **symbols; | |
1924 | { | |
1925 | unsigned int count; | |
1926 | ||
1927 | if (section->flags & SEC_CONSTRUCTOR) | |
1928 | { | |
1929 | arelent_chain *chain; | |
1930 | ||
1931 | /* This section has relocs made up by us, not the file, so take | |
1932 | them out of their chain and place them into the data area | |
1933 | provided. */ | |
1934 | for (count = 0, chain = section->constructor_chain; | |
1935 | count < section->reloc_count; | |
1936 | count++, chain = chain->next) | |
1937 | *relptr++ = &chain->relent; | |
1938 | } | |
1939 | else | |
1940 | { | |
1941 | arelent *tblptr; | |
1942 | ||
1943 | if (ecoff_slurp_reloc_table (abfd, section, symbols) == false) | |
326e32d7 | 1944 | return -1; |
dae31cf5 ILT |
1945 | |
1946 | tblptr = section->relocation; | |
dae31cf5 ILT |
1947 | |
1948 | for (count = 0; count < section->reloc_count; count++) | |
1949 | *relptr++ = tblptr++; | |
1950 | } | |
1951 | ||
1952 | *relptr = (arelent *) NULL; | |
1953 | ||
1954 | return section->reloc_count; | |
1955 | } | |
dae31cf5 ILT |
1956 | \f |
1957 | /* Provided a BFD, a section and an offset into the section, calculate | |
1958 | and return the name of the source file and the line nearest to the | |
1959 | wanted location. */ | |
1960 | ||
728472f1 | 1961 | /*ARGSUSED*/ |
dae31cf5 ILT |
1962 | boolean |
1963 | ecoff_find_nearest_line (abfd, | |
1964 | section, | |
1965 | ignore_symbols, | |
1966 | offset, | |
1967 | filename_ptr, | |
1968 | functionname_ptr, | |
1969 | retline_ptr) | |
1970 | bfd *abfd; | |
1971 | asection *section; | |
1972 | asymbol **ignore_symbols; | |
1973 | bfd_vma offset; | |
1974 | CONST char **filename_ptr; | |
1975 | CONST char **functionname_ptr; | |
1976 | unsigned int *retline_ptr; | |
1977 | { | |
c9668c58 ILT |
1978 | const struct ecoff_debug_swap * const debug_swap |
1979 | = &ecoff_backend (abfd)->debug_swap; | |
dae31cf5 ILT |
1980 | FDR *fdr_ptr; |
1981 | FDR *fdr_start; | |
1982 | FDR *fdr_end; | |
1983 | FDR *fdr_hold; | |
1984 | bfd_size_type external_pdr_size; | |
1985 | char *pdr_ptr; | |
1986 | char *pdr_end; | |
1987 | PDR pdr; | |
1988 | unsigned char *line_ptr; | |
1989 | unsigned char *line_end; | |
1990 | int lineno; | |
1991 | ||
1992 | /* If we're not in the .text section, we don't have any line | |
1993 | numbers. */ | |
1994 | if (strcmp (section->name, _TEXT) != 0 | |
1995 | || offset < ecoff_data (abfd)->text_start | |
1996 | || offset >= ecoff_data (abfd)->text_end) | |
1997 | return false; | |
1998 | ||
1999 | /* Make sure we have the FDR's. */ | |
2000 | if (ecoff_slurp_symbolic_info (abfd) == false | |
2001 | || bfd_get_symcount (abfd) == 0) | |
2002 | return false; | |
2003 | ||
2004 | /* Each file descriptor (FDR) has a memory address. Here we track | |
2005 | down which FDR we want. The FDR's are stored in increasing | |
2006 | memory order. If speed is ever important, this can become a | |
2007 | binary search. We must ignore FDR's with no PDR entries; they | |
2008 | will have the adr of the FDR before or after them. */ | |
c9668c58 ILT |
2009 | fdr_start = ecoff_data (abfd)->debug_info.fdr; |
2010 | fdr_end = fdr_start + ecoff_data (abfd)->debug_info.symbolic_header.ifdMax; | |
dae31cf5 ILT |
2011 | fdr_hold = (FDR *) NULL; |
2012 | for (fdr_ptr = fdr_start; fdr_ptr < fdr_end; fdr_ptr++) | |
2013 | { | |
2014 | if (fdr_ptr->cpd == 0) | |
2015 | continue; | |
2016 | if (offset < fdr_ptr->adr) | |
2017 | break; | |
2018 | fdr_hold = fdr_ptr; | |
2019 | } | |
2020 | if (fdr_hold == (FDR *) NULL) | |
2021 | return false; | |
2022 | fdr_ptr = fdr_hold; | |
2023 | ||
2024 | /* Each FDR has a list of procedure descriptors (PDR). PDR's also | |
2025 | have an address, which is relative to the FDR address, and are | |
2026 | also stored in increasing memory order. */ | |
2027 | offset -= fdr_ptr->adr; | |
c9668c58 ILT |
2028 | external_pdr_size = debug_swap->external_pdr_size; |
2029 | pdr_ptr = ((char *) ecoff_data (abfd)->debug_info.external_pdr | |
dae31cf5 ILT |
2030 | + fdr_ptr->ipdFirst * external_pdr_size); |
2031 | pdr_end = pdr_ptr + fdr_ptr->cpd * external_pdr_size; | |
c9668c58 | 2032 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 ILT |
2033 | |
2034 | /* The address of the first PDR is an offset which applies to the | |
2035 | addresses of all the PDR's. */ | |
2036 | offset += pdr.adr; | |
2037 | ||
2038 | for (pdr_ptr += external_pdr_size; | |
2039 | pdr_ptr < pdr_end; | |
2040 | pdr_ptr += external_pdr_size) | |
2041 | { | |
c9668c58 | 2042 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 ILT |
2043 | if (offset < pdr.adr) |
2044 | break; | |
2045 | } | |
2046 | ||
2047 | /* Now we can look for the actual line number. The line numbers are | |
2048 | stored in a very funky format, which I won't try to describe. | |
2049 | Note that right here pdr_ptr and pdr hold the PDR *after* the one | |
2050 | we want; we need this to compute line_end. */ | |
c9668c58 | 2051 | line_end = ecoff_data (abfd)->debug_info.line; |
dae31cf5 ILT |
2052 | if (pdr_ptr == pdr_end) |
2053 | line_end += fdr_ptr->cbLineOffset + fdr_ptr->cbLine; | |
2054 | else | |
2055 | line_end += fdr_ptr->cbLineOffset + pdr.cbLineOffset; | |
2056 | ||
2057 | /* Now change pdr and pdr_ptr to the one we want. */ | |
2058 | pdr_ptr -= external_pdr_size; | |
c9668c58 | 2059 | (*debug_swap->swap_pdr_in) (abfd, (PTR) pdr_ptr, &pdr); |
dae31cf5 ILT |
2060 | |
2061 | offset -= pdr.adr; | |
2062 | lineno = pdr.lnLow; | |
c9668c58 | 2063 | line_ptr = (ecoff_data (abfd)->debug_info.line |
dae31cf5 ILT |
2064 | + fdr_ptr->cbLineOffset |
2065 | + pdr.cbLineOffset); | |
2066 | while (line_ptr < line_end) | |
2067 | { | |
2068 | int delta; | |
2069 | int count; | |
2070 | ||
2071 | delta = *line_ptr >> 4; | |
2072 | if (delta >= 0x8) | |
2073 | delta -= 0x10; | |
2074 | count = (*line_ptr & 0xf) + 1; | |
2075 | ++line_ptr; | |
2076 | if (delta == -8) | |
2077 | { | |
2078 | delta = (((line_ptr[0]) & 0xff) << 8) + ((line_ptr[1]) & 0xff); | |
2079 | if (delta >= 0x8000) | |
2080 | delta -= 0x10000; | |
2081 | line_ptr += 2; | |
2082 | } | |
2083 | lineno += delta; | |
2084 | if (offset < count * 4) | |
2085 | break; | |
2086 | offset -= count * 4; | |
2087 | } | |
2088 | ||
2089 | /* If fdr_ptr->rss is -1, then this file does not have full symbols, | |
2090 | at least according to gdb/mipsread.c. */ | |
2091 | if (fdr_ptr->rss == -1) | |
2092 | { | |
2093 | *filename_ptr = NULL; | |
2094 | if (pdr.isym == -1) | |
2095 | *functionname_ptr = NULL; | |
2096 | else | |
2097 | { | |
2098 | EXTR proc_ext; | |
2099 | ||
c9668c58 ILT |
2100 | (*debug_swap->swap_ext_in) |
2101 | (abfd, | |
2102 | ((char *) ecoff_data (abfd)->debug_info.external_ext | |
2103 | + pdr.isym * debug_swap->external_ext_size), | |
2104 | &proc_ext); | |
2105 | *functionname_ptr = (ecoff_data (abfd)->debug_info.ssext | |
2106 | + proc_ext.asym.iss); | |
dae31cf5 ILT |
2107 | } |
2108 | } | |
2109 | else | |
2110 | { | |
2111 | SYMR proc_sym; | |
2112 | ||
c9668c58 ILT |
2113 | *filename_ptr = (ecoff_data (abfd)->debug_info.ss |
2114 | + fdr_ptr->issBase | |
2115 | + fdr_ptr->rss); | |
2116 | (*debug_swap->swap_sym_in) | |
2117 | (abfd, | |
2118 | ((char *) ecoff_data (abfd)->debug_info.external_sym | |
2119 | + (fdr_ptr->isymBase + pdr.isym) * debug_swap->external_sym_size), | |
2120 | &proc_sym); | |
2121 | *functionname_ptr = (ecoff_data (abfd)->debug_info.ss | |
dae31cf5 ILT |
2122 | + fdr_ptr->issBase |
2123 | + proc_sym.iss); | |
2124 | } | |
2125 | if (lineno == ilineNil) | |
2126 | lineno = 0; | |
2127 | *retline_ptr = lineno; | |
2128 | return true; | |
2129 | } | |
2130 | \f | |
dae31cf5 ILT |
2131 | /* Set the architecture. The supported architecture is stored in the |
2132 | backend pointer. We always set the architecture anyhow, since many | |
2133 | callers ignore the return value. */ | |
2134 | ||
2135 | boolean | |
2136 | ecoff_set_arch_mach (abfd, arch, machine) | |
2137 | bfd *abfd; | |
2138 | enum bfd_architecture arch; | |
2139 | unsigned long machine; | |
2140 | { | |
2141 | bfd_default_set_arch_mach (abfd, arch, machine); | |
2142 | return arch == ecoff_backend (abfd)->arch; | |
2143 | } | |
2144 | ||
8d12f138 ILT |
2145 | /* Get the size of the section headers. We do not output the .reginfo |
2146 | section. */ | |
dae31cf5 | 2147 | |
728472f1 | 2148 | /*ARGSUSED*/ |
dae31cf5 ILT |
2149 | int |
2150 | ecoff_sizeof_headers (abfd, reloc) | |
2151 | bfd *abfd; | |
2152 | boolean reloc; | |
2153 | { | |
a7853216 ILT |
2154 | asection *current; |
2155 | int c; | |
d6074cdd | 2156 | int ret; |
a7853216 ILT |
2157 | |
2158 | c = 0; | |
2159 | for (current = abfd->sections; | |
2160 | current != (asection *)NULL; | |
2161 | current = current->next) | |
8d12f138 | 2162 | if (strcmp (current->name, REGINFO) != 0) |
a7853216 ILT |
2163 | ++c; |
2164 | ||
626f883f ILT |
2165 | ret = (bfd_coff_filhsz (abfd) |
2166 | + bfd_coff_aoutsz (abfd) | |
2167 | + c * bfd_coff_scnhsz (abfd)); | |
2168 | return BFD_ALIGN (ret, 16); | |
a7853216 ILT |
2169 | } |
2170 | ||
a7853216 ILT |
2171 | /* Get the contents of a section. This is where we handle reading the |
2172 | .reginfo section, which implicitly holds the contents of an | |
2173 | ecoff_reginfo structure. */ | |
2174 | ||
2175 | boolean | |
2176 | ecoff_get_section_contents (abfd, section, location, offset, count) | |
2177 | bfd *abfd; | |
2178 | asection *section; | |
2179 | PTR location; | |
2180 | file_ptr offset; | |
2181 | bfd_size_type count; | |
2182 | { | |
2183 | ecoff_data_type *tdata = ecoff_data (abfd); | |
2184 | struct ecoff_reginfo s; | |
2185 | int i; | |
2186 | ||
2187 | if (strcmp (section->name, REGINFO) != 0) | |
6812b607 | 2188 | return _bfd_generic_get_section_contents (abfd, section, location, |
a7853216 ILT |
2189 | offset, count); |
2190 | ||
2191 | s.gp_value = tdata->gp; | |
2192 | s.gprmask = tdata->gprmask; | |
2193 | for (i = 0; i < 4; i++) | |
2194 | s.cprmask[i] = tdata->cprmask[i]; | |
2195 | s.fprmask = tdata->fprmask; | |
2196 | ||
2197 | /* bfd_get_section_contents has already checked that the offset and | |
2198 | size is reasonable. We don't have to worry about swapping or any | |
2199 | such thing; the .reginfo section is defined such that the | |
2200 | contents are an ecoff_reginfo structure as seen on the host. */ | |
4c3721d5 | 2201 | memcpy (location, ((char *) &s) + offset, (size_t) count); |
a7853216 | 2202 | return true; |
dae31cf5 ILT |
2203 | } |
2204 | ||
2205 | /* Calculate the file position for each section, and set | |
2206 | reloc_filepos. */ | |
2207 | ||
2208 | static void | |
2209 | ecoff_compute_section_file_positions (abfd) | |
2210 | bfd *abfd; | |
2211 | { | |
2212 | asection *current; | |
2213 | file_ptr sofar; | |
2214 | file_ptr old_sofar; | |
2215 | boolean first_data; | |
2216 | ||
dae31cf5 ILT |
2217 | sofar = ecoff_sizeof_headers (abfd, false); |
2218 | ||
2219 | first_data = true; | |
2220 | for (current = abfd->sections; | |
2221 | current != (asection *) NULL; | |
2222 | current = current->next) | |
2223 | { | |
3f048f7f ILT |
2224 | unsigned int alignment_power; |
2225 | ||
dae31cf5 | 2226 | /* Only deal with sections which have contents */ |
e544ed4f | 2227 | if ((current->flags & (SEC_HAS_CONTENTS | SEC_LOAD)) == 0 |
a7853216 | 2228 | || strcmp (current->name, REGINFO) == 0) |
dae31cf5 ILT |
2229 | continue; |
2230 | ||
3f048f7f ILT |
2231 | /* For the Alpha ECOFF .pdata section the lnnoptr field is |
2232 | supposed to indicate the number of .pdata entries that are | |
2233 | really in the section. Each entry is 8 bytes. We store this | |
2234 | away in line_filepos before increasing the section size. */ | |
2235 | if (strcmp (current->name, _PDATA) != 0) | |
2236 | alignment_power = current->alignment_power; | |
2237 | else | |
2238 | { | |
2239 | current->line_filepos = current->_raw_size / 8; | |
2240 | alignment_power = 4; | |
2241 | } | |
2242 | ||
dae31cf5 ILT |
2243 | /* On Ultrix, the data sections in an executable file must be |
2244 | aligned to a page boundary within the file. This does not | |
2245 | affect the section size, though. FIXME: Does this work for | |
c9668c58 ILT |
2246 | other platforms? It requires some modification for the |
2247 | Alpha, because .rdata on the Alpha goes with the text, not | |
2248 | the data. */ | |
dae31cf5 ILT |
2249 | if ((abfd->flags & EXEC_P) != 0 |
2250 | && (abfd->flags & D_PAGED) != 0 | |
2251 | && first_data != false | |
c9668c58 ILT |
2252 | && (current->flags & SEC_CODE) == 0 |
2253 | && (! ecoff_backend (abfd)->rdata_in_text | |
2254 | || strcmp (current->name, _RDATA) != 0) | |
2255 | && strcmp (current->name, _PDATA) != 0) | |
dae31cf5 ILT |
2256 | { |
2257 | const bfd_vma round = ecoff_backend (abfd)->round; | |
2258 | ||
2259 | sofar = (sofar + round - 1) &~ (round - 1); | |
2260 | first_data = false; | |
2261 | } | |
f8ee1ebb ILT |
2262 | else if (strcmp (current->name, _LIB) == 0) |
2263 | { | |
2264 | const bfd_vma round = ecoff_backend (abfd)->round; | |
2265 | /* On Irix 4, the location of contents of the .lib section | |
2266 | from a shared library section is also rounded up to a | |
2267 | page boundary. */ | |
2268 | ||
2269 | sofar = (sofar + round - 1) &~ (round - 1); | |
2270 | } | |
dae31cf5 ILT |
2271 | |
2272 | /* Align the sections in the file to the same boundary on | |
2273 | which they are aligned in virtual memory. */ | |
2274 | old_sofar = sofar; | |
3f048f7f | 2275 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
dae31cf5 ILT |
2276 | |
2277 | current->filepos = sofar; | |
2278 | ||
2279 | sofar += current->_raw_size; | |
2280 | ||
2281 | /* make sure that this section is of the right size too */ | |
2282 | old_sofar = sofar; | |
3f048f7f | 2283 | sofar = BFD_ALIGN (sofar, 1 << alignment_power); |
dae31cf5 ILT |
2284 | current->_raw_size += sofar - old_sofar; |
2285 | } | |
2286 | ||
2287 | ecoff_data (abfd)->reloc_filepos = sofar; | |
2288 | } | |
2289 | ||
966e0a16 | 2290 | /* Determine the location of the relocs for all the sections in the |
3f048f7f ILT |
2291 | output file, as well as the location of the symbolic debugging |
2292 | information. */ | |
966e0a16 ILT |
2293 | |
2294 | static bfd_size_type | |
2295 | ecoff_compute_reloc_file_positions (abfd) | |
2296 | bfd *abfd; | |
2297 | { | |
2298 | const bfd_size_type external_reloc_size = | |
2299 | ecoff_backend (abfd)->external_reloc_size; | |
2300 | file_ptr reloc_base; | |
2301 | bfd_size_type reloc_size; | |
2302 | asection *current; | |
3f048f7f | 2303 | file_ptr sym_base; |
966e0a16 ILT |
2304 | |
2305 | if (! abfd->output_has_begun) | |
3f048f7f ILT |
2306 | { |
2307 | ecoff_compute_section_file_positions (abfd); | |
2308 | abfd->output_has_begun = true; | |
2309 | } | |
966e0a16 ILT |
2310 | |
2311 | reloc_base = ecoff_data (abfd)->reloc_filepos; | |
2312 | ||
2313 | reloc_size = 0; | |
2314 | for (current = abfd->sections; | |
2315 | current != (asection *)NULL; | |
2316 | current = current->next) | |
2317 | { | |
2318 | if (strcmp (current->name, REGINFO) == 0) | |
2319 | continue; | |
2320 | if (current->reloc_count == 0) | |
2321 | current->rel_filepos = 0; | |
2322 | else | |
2323 | { | |
2324 | bfd_size_type relsize; | |
2325 | ||
2326 | current->rel_filepos = reloc_base; | |
2327 | relsize = current->reloc_count * external_reloc_size; | |
2328 | reloc_size += relsize; | |
2329 | reloc_base += relsize; | |
2330 | } | |
2331 | } | |
2332 | ||
3f048f7f ILT |
2333 | sym_base = ecoff_data (abfd)->reloc_filepos + reloc_size; |
2334 | ||
2335 | /* At least on Ultrix, the symbol table of an executable file must | |
2336 | be aligned to a page boundary. FIXME: Is this true on other | |
2337 | platforms? */ | |
2338 | if ((abfd->flags & EXEC_P) != 0 | |
2339 | && (abfd->flags & D_PAGED) != 0) | |
2340 | sym_base = ((sym_base + ecoff_backend (abfd)->round - 1) | |
2341 | &~ (ecoff_backend (abfd)->round - 1)); | |
2342 | ||
2343 | ecoff_data (abfd)->sym_filepos = sym_base; | |
2344 | ||
966e0a16 ILT |
2345 | return reloc_size; |
2346 | } | |
2347 | ||
a7853216 ILT |
2348 | /* Set the contents of a section. This is where we handle setting the |
2349 | contents of the .reginfo section, which implicitly holds a | |
2350 | ecoff_reginfo structure. */ | |
dae31cf5 ILT |
2351 | |
2352 | boolean | |
2353 | ecoff_set_section_contents (abfd, section, location, offset, count) | |
2354 | bfd *abfd; | |
2355 | asection *section; | |
2356 | PTR location; | |
2357 | file_ptr offset; | |
2358 | bfd_size_type count; | |
2359 | { | |
966e0a16 ILT |
2360 | /* This must be done first, because bfd_set_section_contents is |
2361 | going to set output_has_begun to true. */ | |
dae31cf5 ILT |
2362 | if (abfd->output_has_begun == false) |
2363 | ecoff_compute_section_file_positions (abfd); | |
2364 | ||
f8ee1ebb ILT |
2365 | /* If this is a .lib section, bump the vma address so that it winds |
2366 | up being the number of .lib sections output. This is right for | |
2367 | Irix 4. Ian Taylor <ian@cygnus.com>. */ | |
2368 | if (strcmp (section->name, _LIB) == 0) | |
2369 | ++section->vma; | |
2370 | ||
966e0a16 ILT |
2371 | if (count == 0) |
2372 | return true; | |
2373 | ||
a7853216 ILT |
2374 | if (strcmp (section->name, REGINFO) == 0) |
2375 | { | |
2376 | ecoff_data_type *tdata = ecoff_data (abfd); | |
2377 | struct ecoff_reginfo s; | |
2378 | int i; | |
2379 | ||
2380 | /* If the caller is only changing part of the structure, we must | |
2381 | retrieve the current information before the memcpy. */ | |
2382 | if (offset != 0 || count != sizeof (struct ecoff_reginfo)) | |
2383 | { | |
2384 | s.gp_value = tdata->gp; | |
2385 | s.gprmask = tdata->gprmask; | |
2386 | for (i = 0; i < 4; i++) | |
2387 | s.cprmask[i] = tdata->cprmask[i]; | |
2388 | s.fprmask = tdata->fprmask; | |
2389 | } | |
2390 | ||
2391 | /* bfd_set_section_contents has already checked that the offset | |
2392 | and size is reasonable. We don't have to worry about | |
2393 | swapping or any such thing; the .reginfo section is defined | |
2394 | such that the contents are an ecoff_reginfo structure as seen | |
2395 | on the host. */ | |
4c3721d5 | 2396 | memcpy (((char *) &s) + offset, location, (size_t) count); |
a7853216 ILT |
2397 | |
2398 | tdata->gp = s.gp_value; | |
2399 | tdata->gprmask = s.gprmask; | |
2400 | for (i = 0; i < 4; i++) | |
2401 | tdata->cprmask[i] = s.cprmask[i]; | |
2402 | tdata->fprmask = s.fprmask; | |
2403 | ||
2404 | return true; | |
a7853216 ILT |
2405 | } |
2406 | ||
966e0a16 ILT |
2407 | if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 |
2408 | || bfd_write (location, 1, count, abfd) != count) | |
2409 | return false; | |
dae31cf5 ILT |
2410 | |
2411 | return true; | |
2412 | } | |
2413 | ||
966e0a16 ILT |
2414 | /* Get ECOFF EXTR information for an external symbol. This function |
2415 | is passed to bfd_ecoff_debug_externals. */ | |
dae31cf5 | 2416 | |
966e0a16 ILT |
2417 | static boolean |
2418 | ecoff_get_extr (sym, esym) | |
2419 | asymbol *sym; | |
2420 | EXTR *esym; | |
dae31cf5 | 2421 | { |
966e0a16 ILT |
2422 | ecoff_symbol_type *ecoff_sym_ptr; |
2423 | bfd *input_bfd; | |
2424 | ||
2425 | /* Don't include debugging, local or section symbols. */ | |
2426 | if ((sym->flags & BSF_DEBUGGING) != 0 | |
2427 | || (sym->flags & BSF_LOCAL) != 0 | |
2428 | || (sym->flags & BSF_SECTION_SYM) != 0) | |
2429 | return false; | |
2430 | ||
2431 | if (bfd_asymbol_flavour (sym) != bfd_target_ecoff_flavour | |
2432 | || ecoffsymbol (sym)->native == NULL) | |
2433 | { | |
2434 | esym->jmptbl = 0; | |
2435 | esym->cobol_main = 0; | |
2436 | esym->weakext = 0; | |
2437 | esym->reserved = 0; | |
2438 | esym->ifd = ifdNil; | |
2439 | /* FIXME: we can do better than this for st and sc. */ | |
2440 | esym->asym.st = stGlobal; | |
2441 | esym->asym.sc = scAbs; | |
2442 | esym->asym.reserved = 0; | |
2443 | esym->asym.index = indexNil; | |
2444 | return true; | |
2445 | } | |
2446 | ||
2447 | ecoff_sym_ptr = ecoffsymbol (sym); | |
2448 | ||
2449 | if (ecoff_sym_ptr->local) | |
2450 | abort (); | |
2451 | ||
2452 | input_bfd = bfd_asymbol_bfd (sym); | |
2453 | (*(ecoff_backend (input_bfd)->debug_swap.swap_ext_in)) | |
2454 | (input_bfd, ecoff_sym_ptr->native, esym); | |
2455 | ||
2456 | /* If the symbol was defined by the linker, then esym will be | |
2457 | undefined but sym will not be. Get a better class for such a | |
2458 | symbol. */ | |
2459 | if ((esym->asym.sc == scUndefined | |
2460 | || esym->asym.sc == scSUndefined) | |
2461 | && bfd_get_section (sym) != &bfd_und_section) | |
2462 | esym->asym.sc = scAbs; | |
2463 | ||
2464 | /* Adjust the FDR index for the symbol by that used for the input | |
2465 | BFD. */ | |
3f048f7f ILT |
2466 | if (esym->ifd != -1) |
2467 | { | |
2468 | struct ecoff_debug_info *input_debug; | |
2469 | ||
2470 | input_debug = &ecoff_data (input_bfd)->debug_info; | |
2471 | BFD_ASSERT (esym->ifd < input_debug->symbolic_header.ifdMax); | |
2472 | if (input_debug->ifdmap != (RFDT *) NULL) | |
2473 | esym->ifd = input_debug->ifdmap[esym->ifd]; | |
2474 | } | |
966e0a16 ILT |
2475 | |
2476 | return true; | |
2477 | } | |
2478 | ||
2479 | /* Set the external symbol index. This routine is passed to | |
2480 | bfd_ecoff_debug_externals. */ | |
2481 | ||
2482 | static void | |
2483 | ecoff_set_index (sym, indx) | |
2484 | asymbol *sym; | |
2485 | bfd_size_type indx; | |
2486 | { | |
2487 | ecoff_set_sym_index (sym, indx); | |
2488 | } | |
2489 | ||
2490 | /* Write out an ECOFF file. */ | |
2491 | ||
2492 | boolean | |
2493 | ecoff_write_object_contents (abfd) | |
2494 | bfd *abfd; | |
2495 | { | |
2496 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
2497 | const bfd_vma round = backend->round; | |
2498 | const bfd_size_type filhsz = bfd_coff_filhsz (abfd); | |
2499 | const bfd_size_type aoutsz = bfd_coff_aoutsz (abfd); | |
2500 | const bfd_size_type scnhsz = bfd_coff_scnhsz (abfd); | |
2501 | const bfd_size_type external_hdr_size | |
2502 | = backend->debug_swap.external_hdr_size; | |
2503 | const bfd_size_type external_reloc_size = backend->external_reloc_size; | |
2504 | void (* const adjust_reloc_out) PARAMS ((bfd *, | |
2505 | const arelent *, | |
2506 | struct internal_reloc *)) | |
c9668c58 | 2507 | = backend->adjust_reloc_out; |
dae31cf5 ILT |
2508 | void (* const swap_reloc_out) PARAMS ((bfd *, |
2509 | const struct internal_reloc *, | |
2510 | PTR)) | |
2511 | = backend->swap_reloc_out; | |
8d12f138 ILT |
2512 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; |
2513 | HDRR * const symhdr = &debug->symbolic_header; | |
dae31cf5 ILT |
2514 | asection *current; |
2515 | unsigned int count; | |
966e0a16 | 2516 | bfd_size_type reloc_size; |
22a71fef ILT |
2517 | bfd_size_type text_size; |
2518 | bfd_vma text_start; | |
1788b1bd | 2519 | boolean set_text_start; |
22a71fef ILT |
2520 | bfd_size_type data_size; |
2521 | bfd_vma data_start; | |
1788b1bd | 2522 | boolean set_data_start; |
22a71fef | 2523 | bfd_size_type bss_size; |
80425e6c JK |
2524 | PTR buff = NULL; |
2525 | PTR reloc_buff = NULL; | |
dae31cf5 ILT |
2526 | struct internal_filehdr internal_f; |
2527 | struct internal_aouthdr internal_a; | |
2528 | int i; | |
2529 | ||
966e0a16 ILT |
2530 | /* Determine where the sections and relocs will go in the output |
2531 | file. */ | |
2532 | reloc_size = ecoff_compute_reloc_file_positions (abfd); | |
dae31cf5 ILT |
2533 | |
2534 | count = 1; | |
dae31cf5 ILT |
2535 | for (current = abfd->sections; |
2536 | current != (asection *)NULL; | |
2537 | current = current->next) | |
2538 | { | |
8d12f138 | 2539 | if (strcmp (current->name, REGINFO) == 0) |
dae31cf5 ILT |
2540 | continue; |
2541 | current->target_index = count; | |
2542 | ++count; | |
dae31cf5 ILT |
2543 | } |
2544 | ||
dae31cf5 ILT |
2545 | if ((abfd->flags & D_PAGED) != 0) |
2546 | text_size = ecoff_sizeof_headers (abfd, false); | |
2547 | else | |
2548 | text_size = 0; | |
2549 | text_start = 0; | |
1788b1bd | 2550 | set_text_start = false; |
dae31cf5 ILT |
2551 | data_size = 0; |
2552 | data_start = 0; | |
1788b1bd | 2553 | set_data_start = false; |
dae31cf5 ILT |
2554 | bss_size = 0; |
2555 | ||
2556 | /* Write section headers to the file. */ | |
2557 | ||
80425e6c JK |
2558 | /* Allocate buff big enough to hold a section header, |
2559 | file header, or a.out header. */ | |
2560 | { | |
2561 | bfd_size_type siz; | |
2562 | siz = scnhsz; | |
2563 | if (siz < filhsz) | |
2564 | siz = filhsz; | |
2565 | if (siz < aoutsz) | |
2566 | siz = aoutsz; | |
2567 | buff = (PTR) malloc (siz); | |
2568 | if (buff == NULL) | |
2569 | { | |
2570 | bfd_set_error (bfd_error_no_memory); | |
2571 | goto error_return; | |
2572 | } | |
2573 | } | |
2574 | ||
dae31cf5 ILT |
2575 | internal_f.f_nscns = 0; |
2576 | if (bfd_seek (abfd, (file_ptr) (filhsz + aoutsz), SEEK_SET) != 0) | |
80425e6c | 2577 | goto error_return; |
dae31cf5 ILT |
2578 | for (current = abfd->sections; |
2579 | current != (asection *) NULL; | |
2580 | current = current->next) | |
2581 | { | |
2582 | struct internal_scnhdr section; | |
2583 | bfd_vma vma; | |
2584 | ||
a7853216 ILT |
2585 | if (strcmp (current->name, REGINFO) == 0) |
2586 | { | |
c9668c58 | 2587 | BFD_ASSERT (current->reloc_count == 0); |
a7853216 ILT |
2588 | continue; |
2589 | } | |
dae31cf5 ILT |
2590 | |
2591 | ++internal_f.f_nscns; | |
2592 | ||
2593 | strncpy (section.s_name, current->name, sizeof section.s_name); | |
2594 | ||
f8ee1ebb | 2595 | /* This seems to be correct for Irix 4 shared libraries. */ |
dae31cf5 ILT |
2596 | vma = bfd_get_section_vma (abfd, current); |
2597 | if (strcmp (current->name, _LIB) == 0) | |
2598 | section.s_vaddr = 0; | |
2599 | else | |
2600 | section.s_vaddr = vma; | |
2601 | ||
2602 | section.s_paddr = vma; | |
2603 | section.s_size = bfd_get_section_size_before_reloc (current); | |
2604 | ||
e544ed4f ILT |
2605 | /* If this section is unloadable then the scnptr will be 0. */ |
2606 | if ((current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
dae31cf5 ILT |
2607 | section.s_scnptr = 0; |
2608 | else | |
2609 | section.s_scnptr = current->filepos; | |
2610 | section.s_relptr = current->rel_filepos; | |
2611 | ||
2612 | /* FIXME: the lnnoptr of the .sbss or .sdata section of an | |
2613 | object file produced by the assembler is supposed to point to | |
2614 | information about how much room is required by objects of | |
2615 | various different sizes. I think this only matters if we | |
2616 | want the linker to compute the best size to use, or | |
2617 | something. I don't know what happens if the information is | |
2618 | not present. */ | |
3f048f7f ILT |
2619 | if (strcmp (current->name, _PDATA) != 0) |
2620 | section.s_lnnoptr = 0; | |
2621 | else | |
2622 | { | |
2623 | /* The Alpha ECOFF .pdata section uses the lnnoptr field to | |
2624 | hold the number of entries in the section (each entry is | |
2625 | 8 bytes). We stored this in the line_filepos field in | |
2626 | ecoff_compute_section_file_positions. */ | |
2627 | section.s_lnnoptr = current->line_filepos; | |
2628 | } | |
dae31cf5 ILT |
2629 | |
2630 | section.s_nreloc = current->reloc_count; | |
2631 | section.s_nlnno = 0; | |
2632 | section.s_flags = ecoff_sec_to_styp_flags (current->name, | |
2633 | current->flags); | |
2634 | ||
2635 | bfd_coff_swap_scnhdr_out (abfd, (PTR) §ion, buff); | |
2636 | if (bfd_write (buff, 1, scnhsz, abfd) != scnhsz) | |
80425e6c | 2637 | goto error_return; |
dae31cf5 | 2638 | |
c9668c58 ILT |
2639 | if ((section.s_flags & STYP_TEXT) != 0 |
2640 | || ((section.s_flags & STYP_RDATA) != 0 | |
2641 | && backend->rdata_in_text) | |
2642 | || strcmp (current->name, _PDATA) == 0) | |
dae31cf5 ILT |
2643 | { |
2644 | text_size += bfd_get_section_size_before_reloc (current); | |
1788b1bd ILT |
2645 | if (! set_text_start || text_start > vma) |
2646 | { | |
2647 | text_start = vma; | |
2648 | set_text_start = true; | |
2649 | } | |
dae31cf5 ILT |
2650 | } |
2651 | else if ((section.s_flags & STYP_RDATA) != 0 | |
2652 | || (section.s_flags & STYP_DATA) != 0 | |
c9668c58 | 2653 | || (section.s_flags & STYP_LITA) != 0 |
dae31cf5 ILT |
2654 | || (section.s_flags & STYP_LIT8) != 0 |
2655 | || (section.s_flags & STYP_LIT4) != 0 | |
966e0a16 ILT |
2656 | || (section.s_flags & STYP_SDATA) != 0 |
2657 | || strcmp (current->name, _XDATA) == 0) | |
dae31cf5 ILT |
2658 | { |
2659 | data_size += bfd_get_section_size_before_reloc (current); | |
1788b1bd ILT |
2660 | if (! set_data_start || data_start > vma) |
2661 | { | |
2662 | data_start = vma; | |
2663 | set_data_start = true; | |
2664 | } | |
dae31cf5 ILT |
2665 | } |
2666 | else if ((section.s_flags & STYP_BSS) != 0 | |
2667 | || (section.s_flags & STYP_SBSS) != 0) | |
2668 | bss_size += bfd_get_section_size_before_reloc (current); | |
f8ee1ebb ILT |
2669 | else if ((section.s_flags & STYP_ECOFF_LIB) != 0) |
2670 | /* Do nothing */ ; | |
966e0a16 ILT |
2671 | else |
2672 | abort (); | |
dae31cf5 ILT |
2673 | } |
2674 | ||
2675 | /* Set up the file header. */ | |
2676 | ||
a7853216 | 2677 | internal_f.f_magic = ecoff_get_magic (abfd); |
dae31cf5 ILT |
2678 | |
2679 | /* We will NOT put a fucking timestamp in the header here. Every | |
2680 | time you put it back, I will come in and take it out again. I'm | |
2681 | sorry. This field does not belong here. We fill it with a 0 so | |
2682 | it compares the same but is not a reasonable time. -- | |
2683 | gnu@cygnus.com. */ | |
2684 | internal_f.f_timdat = 0; | |
2685 | ||
2686 | if (bfd_get_symcount (abfd) != 0) | |
2687 | { | |
2688 | /* The ECOFF f_nsyms field is not actually the number of | |
2689 | symbols, it's the size of symbolic information header. */ | |
2690 | internal_f.f_nsyms = external_hdr_size; | |
3f048f7f | 2691 | internal_f.f_symptr = ecoff_data (abfd)->sym_filepos; |
dae31cf5 ILT |
2692 | } |
2693 | else | |
2694 | { | |
2695 | internal_f.f_nsyms = 0; | |
2696 | internal_f.f_symptr = 0; | |
2697 | } | |
2698 | ||
2699 | internal_f.f_opthdr = aoutsz; | |
2700 | ||
2701 | internal_f.f_flags = F_LNNO; | |
2702 | if (reloc_size == 0) | |
2703 | internal_f.f_flags |= F_RELFLG; | |
2704 | if (bfd_get_symcount (abfd) == 0) | |
2705 | internal_f.f_flags |= F_LSYMS; | |
2706 | if (abfd->flags & EXEC_P) | |
2707 | internal_f.f_flags |= F_EXEC; | |
2708 | ||
2709 | if (! abfd->xvec->byteorder_big_p) | |
2710 | internal_f.f_flags |= F_AR32WR; | |
2711 | else | |
2712 | internal_f.f_flags |= F_AR32W; | |
2713 | ||
2714 | /* Set up the ``optional'' header. */ | |
2715 | if ((abfd->flags & D_PAGED) != 0) | |
2716 | internal_a.magic = ECOFF_AOUT_ZMAGIC; | |
2717 | else | |
2718 | internal_a.magic = ECOFF_AOUT_OMAGIC; | |
2719 | ||
3f048f7f ILT |
2720 | /* FIXME: Is this really correct? */ |
2721 | internal_a.vstamp = symhdr->vstamp; | |
dae31cf5 ILT |
2722 | |
2723 | /* At least on Ultrix, these have to be rounded to page boundaries. | |
2724 | FIXME: Is this true on other platforms? */ | |
2725 | if ((abfd->flags & D_PAGED) != 0) | |
2726 | { | |
2727 | internal_a.tsize = (text_size + round - 1) &~ (round - 1); | |
2728 | internal_a.text_start = text_start &~ (round - 1); | |
2729 | internal_a.dsize = (data_size + round - 1) &~ (round - 1); | |
2730 | internal_a.data_start = data_start &~ (round - 1); | |
2731 | } | |
2732 | else | |
2733 | { | |
2734 | internal_a.tsize = text_size; | |
2735 | internal_a.text_start = text_start; | |
2736 | internal_a.dsize = data_size; | |
2737 | internal_a.data_start = data_start; | |
2738 | } | |
2739 | ||
2740 | /* On Ultrix, the initial portions of the .sbss and .bss segments | |
2741 | are at the end of the data section. The bsize field in the | |
2742 | optional header records how many bss bytes are required beyond | |
2743 | those in the data section. The value is not rounded to a page | |
2744 | boundary. */ | |
2745 | if (bss_size < internal_a.dsize - data_size) | |
2746 | bss_size = 0; | |
2747 | else | |
2748 | bss_size -= internal_a.dsize - data_size; | |
2749 | internal_a.bsize = bss_size; | |
2750 | internal_a.bss_start = internal_a.data_start + internal_a.dsize; | |
2751 | ||
2752 | internal_a.entry = bfd_get_start_address (abfd); | |
2753 | ||
2754 | internal_a.gp_value = ecoff_data (abfd)->gp; | |
2755 | ||
2756 | internal_a.gprmask = ecoff_data (abfd)->gprmask; | |
48edba81 | 2757 | internal_a.fprmask = ecoff_data (abfd)->fprmask; |
dae31cf5 ILT |
2758 | for (i = 0; i < 4; i++) |
2759 | internal_a.cprmask[i] = ecoff_data (abfd)->cprmask[i]; | |
2760 | ||
2761 | /* Write out the file header and the optional header. */ | |
2762 | ||
2763 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
80425e6c | 2764 | goto error_return; |
dae31cf5 | 2765 | |
dae31cf5 ILT |
2766 | bfd_coff_swap_filehdr_out (abfd, (PTR) &internal_f, buff); |
2767 | if (bfd_write (buff, 1, filhsz, abfd) != filhsz) | |
80425e6c | 2768 | goto error_return; |
dae31cf5 | 2769 | |
dae31cf5 ILT |
2770 | bfd_coff_swap_aouthdr_out (abfd, (PTR) &internal_a, buff); |
2771 | if (bfd_write (buff, 1, aoutsz, abfd) != aoutsz) | |
80425e6c | 2772 | goto error_return; |
dae31cf5 | 2773 | |
8d12f138 | 2774 | /* Build the external symbol information. This must be done before |
966e0a16 ILT |
2775 | writing out the relocs so that we know the symbol indices. The |
2776 | condition checks makes sure this object was not created by | |
2777 | ecoff_bfd_final_link, since if it was we do not want to tamper | |
2778 | with the external symbols. */ | |
3f048f7f | 2779 | if (bfd_get_outsymbols (abfd) != (asymbol **) NULL) |
dae31cf5 | 2780 | { |
966e0a16 ILT |
2781 | symhdr->iextMax = 0; |
2782 | symhdr->issExtMax = 0; | |
2783 | debug->external_ext = debug->external_ext_end = NULL; | |
2784 | debug->ssext = debug->ssext_end = NULL; | |
2785 | if (bfd_ecoff_debug_externals (abfd, debug, &backend->debug_swap, | |
2786 | (((abfd->flags & EXEC_P) == 0) | |
2787 | ? true : false), | |
2788 | ecoff_get_extr, ecoff_set_index) | |
2789 | == false) | |
80425e6c | 2790 | goto error_return; |
dae31cf5 | 2791 | |
966e0a16 ILT |
2792 | /* Write out the relocs. */ |
2793 | for (current = abfd->sections; | |
2794 | current != (asection *) NULL; | |
2795 | current = current->next) | |
dae31cf5 | 2796 | { |
966e0a16 ILT |
2797 | arelent **reloc_ptr_ptr; |
2798 | arelent **reloc_end; | |
2799 | char *out_ptr; | |
dae31cf5 | 2800 | |
966e0a16 ILT |
2801 | if (current->reloc_count == 0) |
2802 | continue; | |
dae31cf5 | 2803 | |
80425e6c JK |
2804 | reloc_buff = |
2805 | bfd_alloc (abfd, current->reloc_count * external_reloc_size); | |
2806 | if (reloc_buff == NULL) | |
dae31cf5 | 2807 | { |
d1ad85a6 | 2808 | bfd_set_error (bfd_error_no_memory); |
80425e6c | 2809 | goto error_return; |
dae31cf5 | 2810 | } |
966e0a16 ILT |
2811 | |
2812 | reloc_ptr_ptr = current->orelocation; | |
2813 | reloc_end = reloc_ptr_ptr + current->reloc_count; | |
80425e6c | 2814 | out_ptr = (char *) reloc_buff; |
966e0a16 ILT |
2815 | for (; |
2816 | reloc_ptr_ptr < reloc_end; | |
2817 | reloc_ptr_ptr++, out_ptr += external_reloc_size) | |
dae31cf5 | 2818 | { |
966e0a16 ILT |
2819 | arelent *reloc; |
2820 | asymbol *sym; | |
2821 | struct internal_reloc in; | |
2822 | ||
68241b2b | 2823 | memset ((PTR) &in, 0, sizeof in); |
966e0a16 ILT |
2824 | |
2825 | reloc = *reloc_ptr_ptr; | |
2826 | sym = *reloc->sym_ptr_ptr; | |
2827 | ||
2828 | in.r_vaddr = (reloc->address | |
2829 | + bfd_get_section_vma (abfd, current)); | |
2830 | in.r_type = reloc->howto->type; | |
2831 | ||
2832 | if ((sym->flags & BSF_SECTION_SYM) == 0) | |
2833 | { | |
2834 | in.r_symndx = ecoff_get_sym_index (*reloc->sym_ptr_ptr); | |
2835 | in.r_extern = 1; | |
2836 | } | |
dae31cf5 | 2837 | else |
966e0a16 ILT |
2838 | { |
2839 | CONST char *name; | |
2840 | ||
2841 | name = bfd_get_section_name (abfd, bfd_get_section (sym)); | |
2842 | if (strcmp (name, ".text") == 0) | |
2843 | in.r_symndx = RELOC_SECTION_TEXT; | |
2844 | else if (strcmp (name, ".rdata") == 0) | |
2845 | in.r_symndx = RELOC_SECTION_RDATA; | |
2846 | else if (strcmp (name, ".data") == 0) | |
2847 | in.r_symndx = RELOC_SECTION_DATA; | |
2848 | else if (strcmp (name, ".sdata") == 0) | |
2849 | in.r_symndx = RELOC_SECTION_SDATA; | |
2850 | else if (strcmp (name, ".sbss") == 0) | |
2851 | in.r_symndx = RELOC_SECTION_SBSS; | |
2852 | else if (strcmp (name, ".bss") == 0) | |
2853 | in.r_symndx = RELOC_SECTION_BSS; | |
2854 | else if (strcmp (name, ".init") == 0) | |
2855 | in.r_symndx = RELOC_SECTION_INIT; | |
2856 | else if (strcmp (name, ".lit8") == 0) | |
2857 | in.r_symndx = RELOC_SECTION_LIT8; | |
2858 | else if (strcmp (name, ".lit4") == 0) | |
2859 | in.r_symndx = RELOC_SECTION_LIT4; | |
2860 | else if (strcmp (name, ".xdata") == 0) | |
2861 | in.r_symndx = RELOC_SECTION_XDATA; | |
2862 | else if (strcmp (name, ".pdata") == 0) | |
2863 | in.r_symndx = RELOC_SECTION_PDATA; | |
2864 | else if (strcmp (name, ".fini") == 0) | |
2865 | in.r_symndx = RELOC_SECTION_FINI; | |
2866 | else if (strcmp (name, ".lita") == 0) | |
2867 | in.r_symndx = RELOC_SECTION_LITA; | |
2868 | else if (strcmp (name, "*ABS*") == 0) | |
2869 | in.r_symndx = RELOC_SECTION_ABS; | |
2870 | else | |
2871 | abort (); | |
2872 | in.r_extern = 0; | |
2873 | } | |
2874 | ||
2875 | (*adjust_reloc_out) (abfd, reloc, &in); | |
2876 | ||
2877 | (*swap_reloc_out) (abfd, &in, (PTR) out_ptr); | |
dae31cf5 ILT |
2878 | } |
2879 | ||
966e0a16 | 2880 | if (bfd_seek (abfd, current->rel_filepos, SEEK_SET) != 0) |
80425e6c JK |
2881 | goto error_return; |
2882 | if (bfd_write (reloc_buff, | |
2883 | external_reloc_size, current->reloc_count, abfd) | |
966e0a16 | 2884 | != external_reloc_size * current->reloc_count) |
80425e6c JK |
2885 | goto error_return; |
2886 | bfd_release (abfd, reloc_buff); | |
2887 | reloc_buff = NULL; | |
dae31cf5 | 2888 | } |
dae31cf5 | 2889 | |
3f048f7f ILT |
2890 | /* Write out the symbolic debugging information. */ |
2891 | if (bfd_get_symcount (abfd) > 0) | |
2892 | { | |
2893 | /* Write out the debugging information. */ | |
2894 | if (bfd_ecoff_write_debug (abfd, debug, &backend->debug_swap, | |
2895 | ecoff_data (abfd)->sym_filepos) | |
2896 | == false) | |
80425e6c | 2897 | goto error_return; |
3f048f7f | 2898 | } |
626f883f | 2899 | } |
dae31cf5 | 2900 | |
626f883f ILT |
2901 | /* The .bss section of a demand paged executable must receive an |
2902 | entire page. If there are symbols, the symbols will start on the | |
2903 | next page. If there are no symbols, we must fill out the page by | |
2904 | hand. */ | |
2905 | if (bfd_get_symcount (abfd) == 0 | |
2906 | && (abfd->flags & EXEC_P) != 0 | |
2907 | && (abfd->flags & D_PAGED) != 0) | |
2908 | { | |
2909 | char c; | |
2910 | ||
2911 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2912 | SEEK_SET) != 0) | |
80425e6c | 2913 | goto error_return; |
626f883f ILT |
2914 | if (bfd_read (&c, 1, 1, abfd) == 0) |
2915 | c = 0; | |
2916 | if (bfd_seek (abfd, (file_ptr) ecoff_data (abfd)->sym_filepos - 1, | |
2917 | SEEK_SET) != 0) | |
80425e6c | 2918 | goto error_return; |
626f883f | 2919 | if (bfd_write (&c, 1, 1, abfd) != 1) |
80425e6c | 2920 | goto error_return; |
dae31cf5 ILT |
2921 | } |
2922 | ||
80425e6c JK |
2923 | if (reloc_buff != NULL) |
2924 | bfd_release (abfd, reloc_buff); | |
2925 | if (buff != NULL) | |
2926 | free (buff); | |
dae31cf5 | 2927 | return true; |
80425e6c JK |
2928 | error_return: |
2929 | if (reloc_buff != NULL) | |
2930 | bfd_release (abfd, reloc_buff); | |
2931 | if (buff != NULL) | |
2932 | free (buff); | |
2933 | return false; | |
dae31cf5 ILT |
2934 | } |
2935 | \f | |
2936 | /* Archive handling. ECOFF uses what appears to be a unique type of | |
b59f0276 ILT |
2937 | archive header (armap). The byte ordering of the armap and the |
2938 | contents are encoded in the name of the armap itself. At least for | |
2939 | now, we only support archives with the same byte ordering in the | |
2940 | armap and the contents. | |
dae31cf5 ILT |
2941 | |
2942 | The first four bytes in the armap are the number of symbol | |
2943 | definitions. This is always a power of two. | |
2944 | ||
2945 | This is followed by the symbol definitions. Each symbol definition | |
2946 | occupies 8 bytes. The first four bytes are the offset from the | |
2947 | start of the armap strings to the null-terminated string naming | |
2948 | this symbol. The second four bytes are the file offset to the | |
2949 | archive member which defines this symbol. If the second four bytes | |
2950 | are 0, then this is not actually a symbol definition, and it should | |
2951 | be ignored. | |
2952 | ||
2953 | The symbols are hashed into the armap with a closed hashing scheme. | |
2954 | See the functions below for the details of the algorithm. | |
2955 | ||
dae31cf5 ILT |
2956 | After the symbol definitions comes four bytes holding the size of |
2957 | the string table, followed by the string table itself. */ | |
2958 | ||
2959 | /* The name of an archive headers looks like this: | |
2960 | __________E[BL]E[BL]_ (with a trailing space). | |
2961 | The trailing space is changed to an X if the archive is changed to | |
48edba81 ILT |
2962 | indicate that the armap is out of date. |
2963 | ||
2964 | The Alpha seems to use ________64E[BL]E[BL]_. */ | |
dae31cf5 ILT |
2965 | |
2966 | #define ARMAP_BIG_ENDIAN 'B' | |
2967 | #define ARMAP_LITTLE_ENDIAN 'L' | |
2968 | #define ARMAP_MARKER 'E' | |
48edba81 | 2969 | #define ARMAP_START_LENGTH 10 |
dae31cf5 ILT |
2970 | #define ARMAP_HEADER_MARKER_INDEX 10 |
2971 | #define ARMAP_HEADER_ENDIAN_INDEX 11 | |
2972 | #define ARMAP_OBJECT_MARKER_INDEX 12 | |
2973 | #define ARMAP_OBJECT_ENDIAN_INDEX 13 | |
2974 | #define ARMAP_END_INDEX 14 | |
2975 | #define ARMAP_END "_ " | |
2976 | ||
2977 | /* This is a magic number used in the hashing algorithm. */ | |
2978 | #define ARMAP_HASH_MAGIC 0x9dd68ab5 | |
2979 | ||
2980 | /* This returns the hash value to use for a string. It also sets | |
2981 | *REHASH to the rehash adjustment if the first slot is taken. SIZE | |
2982 | is the number of entries in the hash table, and HLOG is the log | |
2983 | base 2 of SIZE. */ | |
2984 | ||
2985 | static unsigned int | |
2986 | ecoff_armap_hash (s, rehash, size, hlog) | |
2987 | CONST char *s; | |
2988 | unsigned int *rehash; | |
2989 | unsigned int size; | |
2990 | unsigned int hlog; | |
2991 | { | |
2992 | unsigned int hash; | |
2993 | ||
2994 | hash = *s++; | |
2995 | while (*s != '\0') | |
2996 | hash = ((hash >> 27) | (hash << 5)) + *s++; | |
2997 | hash *= ARMAP_HASH_MAGIC; | |
2998 | *rehash = (hash & (size - 1)) | 1; | |
2999 | return hash >> (32 - hlog); | |
3000 | } | |
3001 | ||
3002 | /* Read in the armap. */ | |
3003 | ||
3004 | boolean | |
3005 | ecoff_slurp_armap (abfd) | |
3006 | bfd *abfd; | |
3007 | { | |
3008 | char nextname[17]; | |
3009 | unsigned int i; | |
3010 | struct areltdata *mapdata; | |
3011 | bfd_size_type parsed_size; | |
3012 | char *raw_armap; | |
3013 | struct artdata *ardata; | |
3014 | unsigned int count; | |
3015 | char *raw_ptr; | |
3016 | struct symdef *symdef_ptr; | |
3017 | char *stringbase; | |
3018 | ||
3019 | /* Get the name of the first element. */ | |
3020 | i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
3021 | if (i == 0) | |
3022 | return true; | |
3023 | if (i != 16) | |
3024 | return false; | |
3025 | ||
4002f18a ILT |
3026 | if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0) |
3027 | return false; | |
dae31cf5 | 3028 | |
8c11363a ILT |
3029 | /* Irix 4.0.5F apparently can use either an ECOFF armap or a |
3030 | standard COFF armap. We could move the ECOFF armap stuff into | |
3031 | bfd_slurp_armap, but that seems inappropriate since no other | |
3032 | target uses this format. Instead, we check directly for a COFF | |
3033 | armap. */ | |
3034 | if (strncmp (nextname, "/ ", 16) == 0) | |
3035 | return bfd_slurp_armap (abfd); | |
3036 | ||
dae31cf5 | 3037 | /* See if the first element is an armap. */ |
48edba81 ILT |
3038 | if (strncmp (nextname, ecoff_backend (abfd)->armap_start, |
3039 | ARMAP_START_LENGTH) != 0 | |
dae31cf5 ILT |
3040 | || nextname[ARMAP_HEADER_MARKER_INDEX] != ARMAP_MARKER |
3041 | || (nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3042 | && nextname[ARMAP_HEADER_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3043 | || nextname[ARMAP_OBJECT_MARKER_INDEX] != ARMAP_MARKER | |
3044 | || (nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_BIG_ENDIAN | |
3045 | && nextname[ARMAP_OBJECT_ENDIAN_INDEX] != ARMAP_LITTLE_ENDIAN) | |
3046 | || strncmp (nextname + ARMAP_END_INDEX, | |
3047 | ARMAP_END, sizeof ARMAP_END - 1) != 0) | |
3048 | { | |
3049 | bfd_has_map (abfd) = false; | |
3050 | return true; | |
3051 | } | |
3052 | ||
3053 | /* Make sure we have the right byte ordering. */ | |
3054 | if (((nextname[ARMAP_HEADER_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3055 | ^ (abfd->xvec->header_byteorder_big_p != false)) | |
3056 | || ((nextname[ARMAP_OBJECT_ENDIAN_INDEX] == ARMAP_BIG_ENDIAN) | |
3057 | ^ (abfd->xvec->byteorder_big_p != false))) | |
3058 | { | |
d1ad85a6 | 3059 | bfd_set_error (bfd_error_wrong_format); |
dae31cf5 ILT |
3060 | return false; |
3061 | } | |
3062 | ||
3063 | /* Read in the armap. */ | |
3064 | ardata = bfd_ardata (abfd); | |
b59f0276 | 3065 | mapdata = _bfd_snarf_ar_hdr (abfd); |
dae31cf5 ILT |
3066 | if (mapdata == (struct areltdata *) NULL) |
3067 | return false; | |
3068 | parsed_size = mapdata->parsed_size; | |
3069 | bfd_release (abfd, (PTR) mapdata); | |
3070 | ||
3071 | raw_armap = (char *) bfd_alloc (abfd, parsed_size); | |
3072 | if (raw_armap == (char *) NULL) | |
3073 | { | |
d1ad85a6 | 3074 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
3075 | return false; |
3076 | } | |
3077 | ||
3078 | if (bfd_read ((PTR) raw_armap, 1, parsed_size, abfd) != parsed_size) | |
3079 | { | |
4002f18a ILT |
3080 | if (bfd_get_error () != bfd_error_system_call) |
3081 | bfd_set_error (bfd_error_malformed_archive); | |
dae31cf5 ILT |
3082 | bfd_release (abfd, (PTR) raw_armap); |
3083 | return false; | |
3084 | } | |
3085 | ||
b59f0276 ILT |
3086 | ardata->tdata = (PTR) raw_armap; |
3087 | ||
dae31cf5 ILT |
3088 | count = bfd_h_get_32 (abfd, (PTR) raw_armap); |
3089 | ||
3090 | ardata->symdef_count = 0; | |
3091 | ardata->cache = (struct ar_cache *) NULL; | |
3092 | ||
48edba81 ILT |
3093 | /* This code used to overlay the symdefs over the raw archive data, |
3094 | but that doesn't work on a 64 bit host. */ | |
3095 | ||
e544ed4f | 3096 | stringbase = raw_armap + count * 8 + 8; |
dae31cf5 ILT |
3097 | |
3098 | #ifdef CHECK_ARMAP_HASH | |
3099 | { | |
3100 | unsigned int hlog; | |
3101 | ||
3102 | /* Double check that I have the hashing algorithm right by making | |
3103 | sure that every symbol can be looked up successfully. */ | |
3104 | hlog = 0; | |
3105 | for (i = 1; i < count; i <<= 1) | |
3106 | hlog++; | |
3107 | BFD_ASSERT (i == count); | |
3108 | ||
e544ed4f ILT |
3109 | raw_ptr = raw_armap + 4; |
3110 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3111 | { |
3112 | unsigned int name_offset, file_offset; | |
3113 | unsigned int hash, rehash, srch; | |
3114 | ||
3115 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); | |
e544ed4f | 3116 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3117 | if (file_offset == 0) |
3118 | continue; | |
3119 | hash = ecoff_armap_hash (stringbase + name_offset, &rehash, count, | |
3120 | hlog); | |
3121 | if (hash == i) | |
3122 | continue; | |
3123 | ||
3124 | /* See if we can rehash to this location. */ | |
3125 | for (srch = (hash + rehash) & (count - 1); | |
3126 | srch != hash && srch != i; | |
3127 | srch = (srch + rehash) & (count - 1)) | |
e544ed4f | 3128 | BFD_ASSERT (bfd_h_get_32 (abfd, (PTR) (raw_armap + 8 + srch * 8)) |
dae31cf5 ILT |
3129 | != 0); |
3130 | BFD_ASSERT (srch == i); | |
3131 | } | |
3132 | } | |
3133 | ||
dae31cf5 ILT |
3134 | #endif /* CHECK_ARMAP_HASH */ |
3135 | ||
e544ed4f ILT |
3136 | raw_ptr = raw_armap + 4; |
3137 | for (i = 0; i < count; i++, raw_ptr += 8) | |
3138 | if (bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)) != 0) | |
48edba81 ILT |
3139 | ++ardata->symdef_count; |
3140 | ||
3141 | symdef_ptr = ((struct symdef *) | |
3142 | bfd_alloc (abfd, | |
3143 | ardata->symdef_count * sizeof (struct symdef))); | |
9783e04a DM |
3144 | if (!symdef_ptr) |
3145 | { | |
d1ad85a6 | 3146 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3147 | return false; |
3148 | } | |
3149 | ||
48edba81 ILT |
3150 | ardata->symdefs = (carsym *) symdef_ptr; |
3151 | ||
e544ed4f ILT |
3152 | raw_ptr = raw_armap + 4; |
3153 | for (i = 0; i < count; i++, raw_ptr += 8) | |
dae31cf5 ILT |
3154 | { |
3155 | unsigned int name_offset, file_offset; | |
3156 | ||
e544ed4f | 3157 | file_offset = bfd_h_get_32 (abfd, (PTR) (raw_ptr + 4)); |
dae31cf5 ILT |
3158 | if (file_offset == 0) |
3159 | continue; | |
48edba81 | 3160 | name_offset = bfd_h_get_32 (abfd, (PTR) raw_ptr); |
dae31cf5 ILT |
3161 | symdef_ptr->s.name = stringbase + name_offset; |
3162 | symdef_ptr->file_offset = file_offset; | |
3163 | ++symdef_ptr; | |
dae31cf5 ILT |
3164 | } |
3165 | ||
3166 | ardata->first_file_filepos = bfd_tell (abfd); | |
3167 | /* Pad to an even boundary. */ | |
3168 | ardata->first_file_filepos += ardata->first_file_filepos % 2; | |
3169 | ||
3170 | bfd_has_map (abfd) = true; | |
3171 | ||
3172 | return true; | |
3173 | } | |
3174 | ||
3175 | /* Write out an armap. */ | |
3176 | ||
3177 | boolean | |
3178 | ecoff_write_armap (abfd, elength, map, orl_count, stridx) | |
3179 | bfd *abfd; | |
3180 | unsigned int elength; | |
3181 | struct orl *map; | |
3182 | unsigned int orl_count; | |
3183 | int stridx; | |
3184 | { | |
3185 | unsigned int hashsize, hashlog; | |
3186 | unsigned int symdefsize; | |
3187 | int padit; | |
3188 | unsigned int stringsize; | |
3189 | unsigned int mapsize; | |
3190 | file_ptr firstreal; | |
3191 | struct ar_hdr hdr; | |
3192 | struct stat statbuf; | |
3193 | unsigned int i; | |
e544ed4f | 3194 | bfd_byte temp[4]; |
dae31cf5 ILT |
3195 | bfd_byte *hashtable; |
3196 | bfd *current; | |
3197 | bfd *last_elt; | |
3198 | ||
3199 | /* Ultrix appears to use as a hash table size the least power of two | |
3200 | greater than twice the number of entries. */ | |
3201 | for (hashlog = 0; (1 << hashlog) <= 2 * orl_count; hashlog++) | |
3202 | ; | |
3203 | hashsize = 1 << hashlog; | |
3204 | ||
e544ed4f | 3205 | symdefsize = hashsize * 8; |
dae31cf5 ILT |
3206 | padit = stridx % 2; |
3207 | stringsize = stridx + padit; | |
3208 | ||
3209 | /* Include 8 bytes to store symdefsize and stringsize in output. */ | |
e544ed4f | 3210 | mapsize = symdefsize + stringsize + 8; |
dae31cf5 ILT |
3211 | |
3212 | firstreal = SARMAG + sizeof (struct ar_hdr) + mapsize + elength; | |
3213 | ||
3214 | memset ((PTR) &hdr, 0, sizeof hdr); | |
3215 | ||
3216 | /* Work out the ECOFF armap name. */ | |
48edba81 | 3217 | strcpy (hdr.ar_name, ecoff_backend (abfd)->armap_start); |
dae31cf5 ILT |
3218 | hdr.ar_name[ARMAP_HEADER_MARKER_INDEX] = ARMAP_MARKER; |
3219 | hdr.ar_name[ARMAP_HEADER_ENDIAN_INDEX] = | |
3220 | (abfd->xvec->header_byteorder_big_p | |
3221 | ? ARMAP_BIG_ENDIAN | |
3222 | : ARMAP_LITTLE_ENDIAN); | |
3223 | hdr.ar_name[ARMAP_OBJECT_MARKER_INDEX] = ARMAP_MARKER; | |
3224 | hdr.ar_name[ARMAP_OBJECT_ENDIAN_INDEX] = | |
3225 | abfd->xvec->byteorder_big_p ? ARMAP_BIG_ENDIAN : ARMAP_LITTLE_ENDIAN; | |
3226 | memcpy (hdr.ar_name + ARMAP_END_INDEX, ARMAP_END, sizeof ARMAP_END - 1); | |
3227 | ||
3228 | /* Write the timestamp of the archive header to be just a little bit | |
3229 | later than the timestamp of the file, otherwise the linker will | |
3230 | complain that the index is out of date. Actually, the Ultrix | |
3231 | linker just checks the archive name; the GNU linker may check the | |
3232 | date. */ | |
3233 | stat (abfd->filename, &statbuf); | |
3234 | sprintf (hdr.ar_date, "%ld", (long) (statbuf.st_mtime + 60)); | |
3235 | ||
3236 | /* The DECstation uses zeroes for the uid, gid and mode of the | |
3237 | armap. */ | |
3238 | hdr.ar_uid[0] = '0'; | |
3239 | hdr.ar_gid[0] = '0'; | |
3240 | hdr.ar_mode[0] = '0'; | |
3241 | ||
3242 | sprintf (hdr.ar_size, "%-10d", (int) mapsize); | |
3243 | ||
3244 | hdr.ar_fmag[0] = '`'; | |
9a793780 | 3245 | hdr.ar_fmag[1] = '\012'; |
dae31cf5 ILT |
3246 | |
3247 | /* Turn all null bytes in the header into spaces. */ | |
3248 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
3249 | if (((char *)(&hdr))[i] == '\0') | |
3250 | (((char *)(&hdr))[i]) = ' '; | |
3251 | ||
3252 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) | |
3253 | != sizeof (struct ar_hdr)) | |
3254 | return false; | |
3255 | ||
4c3721d5 | 3256 | bfd_h_put_32 (abfd, (bfd_vma) hashsize, temp); |
728472f1 | 3257 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3258 | return false; |
3259 | ||
3260 | hashtable = (bfd_byte *) bfd_zalloc (abfd, symdefsize); | |
9783e04a DM |
3261 | if (!hashtable) |
3262 | { | |
d1ad85a6 | 3263 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3264 | return false; |
3265 | } | |
dae31cf5 ILT |
3266 | |
3267 | current = abfd->archive_head; | |
3268 | last_elt = current; | |
3269 | for (i = 0; i < orl_count; i++) | |
3270 | { | |
3271 | unsigned int hash, rehash; | |
3272 | ||
3273 | /* Advance firstreal to the file position of this archive | |
3274 | element. */ | |
3275 | if (((bfd *) map[i].pos) != last_elt) | |
3276 | { | |
3277 | do | |
3278 | { | |
3279 | firstreal += arelt_size (current) + sizeof (struct ar_hdr); | |
3280 | firstreal += firstreal % 2; | |
3281 | current = current->next; | |
3282 | } | |
3283 | while (current != (bfd *) map[i].pos); | |
3284 | } | |
3285 | ||
3286 | last_elt = current; | |
3287 | ||
3288 | hash = ecoff_armap_hash (*map[i].name, &rehash, hashsize, hashlog); | |
e544ed4f | 3289 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (hash * 8) + 4)) != 0) |
dae31cf5 ILT |
3290 | { |
3291 | unsigned int srch; | |
3292 | ||
3293 | /* The desired slot is already taken. */ | |
3294 | for (srch = (hash + rehash) & (hashsize - 1); | |
3295 | srch != hash; | |
3296 | srch = (srch + rehash) & (hashsize - 1)) | |
e544ed4f | 3297 | if (bfd_h_get_32 (abfd, (PTR) (hashtable + (srch * 8) + 4)) == 0) |
dae31cf5 ILT |
3298 | break; |
3299 | ||
3300 | BFD_ASSERT (srch != hash); | |
3301 | ||
3302 | hash = srch; | |
3303 | } | |
3304 | ||
4c3721d5 ILT |
3305 | bfd_h_put_32 (abfd, (bfd_vma) map[i].namidx, |
3306 | (PTR) (hashtable + hash * 8)); | |
3307 | bfd_h_put_32 (abfd, (bfd_vma) firstreal, | |
3308 | (PTR) (hashtable + hash * 8 + 4)); | |
dae31cf5 ILT |
3309 | } |
3310 | ||
728472f1 | 3311 | if (bfd_write ((PTR) hashtable, 1, symdefsize, abfd) != symdefsize) |
dae31cf5 ILT |
3312 | return false; |
3313 | ||
3314 | bfd_release (abfd, hashtable); | |
3315 | ||
3316 | /* Now write the strings. */ | |
4c3721d5 | 3317 | bfd_h_put_32 (abfd, (bfd_vma) stringsize, temp); |
728472f1 | 3318 | if (bfd_write ((PTR) temp, 1, 4, abfd) != 4) |
dae31cf5 ILT |
3319 | return false; |
3320 | for (i = 0; i < orl_count; i++) | |
3321 | { | |
3322 | bfd_size_type len; | |
3323 | ||
3324 | len = strlen (*map[i].name) + 1; | |
3325 | if (bfd_write ((PTR) (*map[i].name), 1, len, abfd) != len) | |
3326 | return false; | |
3327 | } | |
3328 | ||
3329 | /* The spec sez this should be a newline. But in order to be | |
3330 | bug-compatible for DECstation ar we use a null. */ | |
3331 | if (padit) | |
3332 | { | |
728472f1 | 3333 | if (bfd_write ("", 1, 1, abfd) != 1) |
dae31cf5 ILT |
3334 | return false; |
3335 | } | |
3336 | ||
3337 | return true; | |
3338 | } | |
3339 | ||
3340 | /* See whether this BFD is an archive. If it is, read in the armap | |
3341 | and the extended name table. */ | |
3342 | ||
3343 | bfd_target * | |
3344 | ecoff_archive_p (abfd) | |
3345 | bfd *abfd; | |
3346 | { | |
3347 | char armag[SARMAG + 1]; | |
3348 | ||
3349 | if (bfd_read ((PTR) armag, 1, SARMAG, abfd) != SARMAG | |
3350 | || strncmp (armag, ARMAG, SARMAG) != 0) | |
3351 | { | |
4002f18a ILT |
3352 | if (bfd_get_error () != bfd_error_system_call) |
3353 | bfd_set_error (bfd_error_wrong_format); | |
dae31cf5 ILT |
3354 | return (bfd_target *) NULL; |
3355 | } | |
3356 | ||
3357 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata | |
3358 | involves a cast, we can't do it as the left operand of | |
3359 | assignment. */ | |
3360 | abfd->tdata.aout_ar_data = | |
3361 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); | |
3362 | ||
3363 | if (bfd_ardata (abfd) == (struct artdata *) NULL) | |
3364 | { | |
d1ad85a6 | 3365 | bfd_set_error (bfd_error_no_memory); |
dae31cf5 ILT |
3366 | return (bfd_target *) NULL; |
3367 | } | |
3368 | ||
3369 | bfd_ardata (abfd)->first_file_filepos = SARMAG; | |
b59f0276 ILT |
3370 | bfd_ardata (abfd)->cache = NULL; |
3371 | bfd_ardata (abfd)->archive_head = NULL; | |
3372 | bfd_ardata (abfd)->symdefs = NULL; | |
3373 | bfd_ardata (abfd)->extended_names = NULL; | |
3374 | bfd_ardata (abfd)->tdata = NULL; | |
dae31cf5 ILT |
3375 | |
3376 | if (ecoff_slurp_armap (abfd) == false | |
3377 | || ecoff_slurp_extended_name_table (abfd) == false) | |
3378 | { | |
3379 | bfd_release (abfd, bfd_ardata (abfd)); | |
3380 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; | |
3381 | return (bfd_target *) NULL; | |
3382 | } | |
3383 | ||
3384 | return abfd->xvec; | |
3385 | } | |
966e0a16 ILT |
3386 | \f |
3387 | /* ECOFF linker code. */ | |
3388 | ||
3389 | static struct bfd_hash_entry *ecoff_link_hash_newfunc | |
3390 | PARAMS ((struct bfd_hash_entry *entry, | |
3391 | struct bfd_hash_table *table, | |
3392 | const char *string)); | |
3393 | static boolean ecoff_link_add_archive_symbols | |
3394 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3395 | static boolean ecoff_link_check_archive_element | |
3396 | PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded)); | |
3397 | static boolean ecoff_link_add_object_symbols | |
3398 | PARAMS ((bfd *, struct bfd_link_info *)); | |
3399 | static boolean ecoff_link_add_externals | |
3400 | PARAMS ((bfd *, struct bfd_link_info *, PTR, char *)); | |
3401 | ||
3402 | /* Routine to create an entry in an ECOFF link hash table. */ | |
3403 | ||
3404 | static struct bfd_hash_entry * | |
3405 | ecoff_link_hash_newfunc (entry, table, string) | |
3406 | struct bfd_hash_entry *entry; | |
3407 | struct bfd_hash_table *table; | |
3408 | const char *string; | |
3409 | { | |
3410 | struct ecoff_link_hash_entry *ret = (struct ecoff_link_hash_entry *) entry; | |
3411 | ||
3412 | /* Allocate the structure if it has not already been allocated by a | |
3413 | subclass. */ | |
3414 | if (ret == (struct ecoff_link_hash_entry *) NULL) | |
3415 | ret = ((struct ecoff_link_hash_entry *) | |
3416 | bfd_hash_allocate (table, sizeof (struct ecoff_link_hash_entry))); | |
9783e04a DM |
3417 | if (ret == (struct ecoff_link_hash_entry *) NULL) |
3418 | { | |
d1ad85a6 | 3419 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3420 | return NULL; |
3421 | } | |
966e0a16 ILT |
3422 | |
3423 | /* Call the allocation method of the superclass. */ | |
3424 | ret = ((struct ecoff_link_hash_entry *) | |
3425 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3426 | table, string)); | |
3427 | ||
9783e04a DM |
3428 | if (ret) |
3429 | { | |
3430 | /* Set local fields. */ | |
3431 | ret->indx = -1; | |
3432 | ret->abfd = NULL; | |
3433 | } | |
68241b2b | 3434 | memset ((PTR) &ret->esym, 0, sizeof ret->esym); |
966e0a16 ILT |
3435 | |
3436 | return (struct bfd_hash_entry *) ret; | |
3437 | } | |
3438 | ||
3439 | /* Create an ECOFF link hash table. */ | |
3440 | ||
3441 | struct bfd_link_hash_table * | |
3442 | ecoff_bfd_link_hash_table_create (abfd) | |
3443 | bfd *abfd; | |
3444 | { | |
3445 | struct ecoff_link_hash_table *ret; | |
3446 | ||
3447 | ret = ((struct ecoff_link_hash_table *) | |
9a793780 SS |
3448 | malloc (sizeof (struct ecoff_link_hash_table))); |
3449 | if (!ret) | |
3450 | { | |
d1ad85a6 | 3451 | bfd_set_error (bfd_error_no_memory); |
9a793780 SS |
3452 | return NULL; |
3453 | } | |
966e0a16 ILT |
3454 | if (! _bfd_link_hash_table_init (&ret->root, abfd, |
3455 | ecoff_link_hash_newfunc)) | |
3456 | { | |
3457 | free (ret); | |
3458 | return (struct bfd_link_hash_table *) NULL; | |
3459 | } | |
3460 | return &ret->root; | |
3461 | } | |
3462 | ||
3463 | /* Look up an entry in an ECOFF link hash table. */ | |
3464 | ||
3465 | #define ecoff_link_hash_lookup(table, string, create, copy, follow) \ | |
3466 | ((struct ecoff_link_hash_entry *) \ | |
3467 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow))) | |
3468 | ||
3469 | /* Traverse an ECOFF link hash table. */ | |
3470 | ||
3471 | #define ecoff_link_hash_traverse(table, func, info) \ | |
3472 | (bfd_link_hash_traverse \ | |
3473 | (&(table)->root, \ | |
3474 | (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ | |
3475 | (info))) | |
3476 | ||
3477 | /* Get the ECOFF link hash table from the info structure. This is | |
3478 | just a cast. */ | |
3479 | ||
3480 | #define ecoff_hash_table(p) ((struct ecoff_link_hash_table *) ((p)->hash)) | |
3481 | ||
3482 | /* Given an ECOFF BFD, add symbols to the global hash table as | |
3483 | appropriate. */ | |
3484 | ||
3485 | boolean | |
3486 | ecoff_bfd_link_add_symbols (abfd, info) | |
3487 | bfd *abfd; | |
3488 | struct bfd_link_info *info; | |
3489 | { | |
3490 | switch (bfd_get_format (abfd)) | |
3491 | { | |
3492 | case bfd_object: | |
3493 | return ecoff_link_add_object_symbols (abfd, info); | |
3494 | case bfd_archive: | |
3495 | return ecoff_link_add_archive_symbols (abfd, info); | |
3496 | default: | |
d1ad85a6 | 3497 | bfd_set_error (bfd_error_wrong_format); |
966e0a16 ILT |
3498 | return false; |
3499 | } | |
3500 | } | |
3501 | ||
3502 | /* Add the symbols from an archive file to the global hash table. | |
3503 | This looks through the undefined symbols, looks each one up in the | |
3504 | archive hash table, and adds any associated object file. We do not | |
3505 | use _bfd_generic_link_add_archive_symbols because ECOFF archives | |
3506 | already have a hash table, so there is no reason to construct | |
3507 | another one. */ | |
3508 | ||
3509 | static boolean | |
3510 | ecoff_link_add_archive_symbols (abfd, info) | |
3511 | bfd *abfd; | |
3512 | struct bfd_link_info *info; | |
3513 | { | |
3514 | const bfd_byte *raw_armap; | |
3515 | struct bfd_link_hash_entry **pundef; | |
3516 | unsigned int armap_count; | |
3517 | unsigned int armap_log; | |
3518 | unsigned int i; | |
3519 | const bfd_byte *hashtable; | |
3520 | const char *stringbase; | |
3521 | ||
3522 | if (! bfd_has_map (abfd)) | |
3523 | { | |
d1ad85a6 | 3524 | bfd_set_error (bfd_error_no_symbols); |
966e0a16 ILT |
3525 | return false; |
3526 | } | |
3527 | ||
3528 | /* If we don't have any raw data for this archive, as can happen on | |
3529 | Irix 4.0.5F, we call the generic routine. | |
3530 | FIXME: We should be more clever about this, since someday tdata | |
3531 | may get to something for a generic archive. */ | |
3532 | raw_armap = (const bfd_byte *) bfd_ardata (abfd)->tdata; | |
3533 | if (raw_armap == (bfd_byte *) NULL) | |
3534 | return (_bfd_generic_link_add_archive_symbols | |
3535 | (abfd, info, ecoff_link_check_archive_element)); | |
3536 | ||
3537 | armap_count = bfd_h_get_32 (abfd, raw_armap); | |
3538 | ||
3539 | armap_log = 0; | |
3540 | for (i = 1; i < armap_count; i <<= 1) | |
3541 | armap_log++; | |
3542 | BFD_ASSERT (i == armap_count); | |
3543 | ||
3544 | hashtable = raw_armap + 4; | |
3545 | stringbase = (const char *) raw_armap + armap_count * 8 + 8; | |
3546 | ||
3547 | /* Look through the list of undefined symbols. */ | |
3548 | pundef = &info->hash->undefs; | |
3549 | while (*pundef != (struct bfd_link_hash_entry *) NULL) | |
3550 | { | |
3551 | struct bfd_link_hash_entry *h; | |
3552 | unsigned int hash, rehash; | |
3553 | unsigned int file_offset; | |
3554 | const char *name; | |
3555 | bfd *element; | |
3556 | ||
3557 | h = *pundef; | |
3558 | ||
3559 | /* When a symbol is defined, it is not necessarily removed from | |
3560 | the list. */ | |
3561 | if (h->type != bfd_link_hash_undefined | |
3562 | && h->type != bfd_link_hash_common) | |
3563 | { | |
3564 | /* Remove this entry from the list, for general cleanliness | |
3565 | and because we are going to look through the list again | |
3566 | if we search any more libraries. We can't remove the | |
3567 | entry if it is the tail, because that would lose any | |
3568 | entries we add to the list later on. */ | |
3569 | if (*pundef != info->hash->undefs_tail) | |
3570 | *pundef = (*pundef)->next; | |
3571 | else | |
3572 | pundef = &(*pundef)->next; | |
3573 | continue; | |
3574 | } | |
3575 | ||
3576 | /* Native ECOFF linkers do not pull in archive elements merely | |
3577 | to satisfy common definitions, so neither do we. We leave | |
3578 | them on the list, though, in case we are linking against some | |
3579 | other object format. */ | |
3580 | if (h->type != bfd_link_hash_undefined) | |
3581 | { | |
3582 | pundef = &(*pundef)->next; | |
3583 | continue; | |
3584 | } | |
3585 | ||
3586 | /* Look for this symbol in the archive hash table. */ | |
3587 | hash = ecoff_armap_hash (h->root.string, &rehash, armap_count, | |
3588 | armap_log); | |
3589 | ||
3590 | file_offset = bfd_h_get_32 (abfd, hashtable + (hash * 8) + 4); | |
3591 | if (file_offset == 0) | |
3592 | { | |
3593 | /* Nothing in this slot. */ | |
3594 | pundef = &(*pundef)->next; | |
3595 | continue; | |
3596 | } | |
3597 | ||
3598 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (hash * 8)); | |
3599 | if (name[0] != h->root.string[0] | |
3600 | || strcmp (name, h->root.string) != 0) | |
3601 | { | |
3602 | unsigned int srch; | |
3603 | boolean found; | |
3604 | ||
3605 | /* That was the wrong symbol. Try rehashing. */ | |
3606 | found = false; | |
3607 | for (srch = (hash + rehash) & (armap_count - 1); | |
3608 | srch != hash; | |
3609 | srch = (srch + rehash) & (armap_count - 1)) | |
3610 | { | |
3611 | file_offset = bfd_h_get_32 (abfd, hashtable + (srch * 8) + 4); | |
3612 | if (file_offset == 0) | |
3613 | break; | |
3614 | name = stringbase + bfd_h_get_32 (abfd, hashtable + (srch * 8)); | |
3615 | if (name[0] == h->root.string[0] | |
3616 | && strcmp (name, h->root.string) == 0) | |
3617 | { | |
3618 | found = true; | |
3619 | break; | |
3620 | } | |
3621 | } | |
3622 | ||
3623 | if (! found) | |
3624 | { | |
3625 | pundef = &(*pundef)->next; | |
3626 | continue; | |
3627 | } | |
3628 | ||
3629 | hash = srch; | |
3630 | } | |
3631 | ||
3632 | element = _bfd_get_elt_at_filepos (abfd, file_offset); | |
3633 | if (element == (bfd *) NULL) | |
3634 | return false; | |
3635 | ||
3636 | if (! bfd_check_format (element, bfd_object)) | |
3637 | return false; | |
3638 | ||
3639 | /* Unlike the generic linker, we know that this element provides | |
3640 | a definition for an undefined symbol and we know that we want | |
3641 | to include it. We don't need to check anything. */ | |
3642 | if (! (*info->callbacks->add_archive_element) (info, element, name)) | |
3643 | return false; | |
3644 | if (! ecoff_link_add_object_symbols (element, info)) | |
3645 | return false; | |
3646 | ||
3647 | pundef = &(*pundef)->next; | |
3648 | } | |
3649 | ||
3650 | return true; | |
3651 | } | |
3652 | ||
3653 | /* This is called if we used _bfd_generic_link_add_archive_symbols | |
3654 | because we were not dealing with an ECOFF archive. */ | |
3655 | ||
3656 | static boolean | |
3657 | ecoff_link_check_archive_element (abfd, info, pneeded) | |
3658 | bfd *abfd; | |
3659 | struct bfd_link_info *info; | |
3660 | boolean *pneeded; | |
3661 | { | |
3662 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3663 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3664 | = backend->debug_swap.swap_ext_in; | |
3665 | HDRR *symhdr; | |
3666 | bfd_size_type external_ext_size; | |
80425e6c | 3667 | PTR external_ext = NULL; |
966e0a16 | 3668 | size_t esize; |
80425e6c | 3669 | char *ssext = NULL; |
966e0a16 ILT |
3670 | char *ext_ptr; |
3671 | char *ext_end; | |
3672 | ||
3673 | *pneeded = false; | |
3674 | ||
3675 | if (! ecoff_slurp_symbolic_header (abfd)) | |
80425e6c | 3676 | goto error_return; |
966e0a16 ILT |
3677 | |
3678 | /* If there are no symbols, we don't want it. */ | |
3679 | if (bfd_get_symcount (abfd) == 0) | |
80425e6c | 3680 | goto successful_return; |
966e0a16 ILT |
3681 | |
3682 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3683 | ||
3684 | /* Read in the external symbols and external strings. */ | |
3685 | external_ext_size = backend->debug_swap.external_ext_size; | |
3686 | esize = symhdr->iextMax * external_ext_size; | |
80425e6c | 3687 | external_ext = (PTR) malloc (esize); |
a3a33af3 | 3688 | if (external_ext == NULL && esize != 0) |
80425e6c JK |
3689 | { |
3690 | bfd_set_error (bfd_error_no_memory); | |
3691 | goto error_return; | |
3692 | } | |
3693 | ||
966e0a16 ILT |
3694 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 |
3695 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
80425e6c JK |
3696 | goto error_return; |
3697 | ||
3698 | ssext = (char *) malloc (symhdr->issExtMax); | |
a3a33af3 | 3699 | if (ssext == NULL && symhdr->issExtMax != 0) |
80425e6c JK |
3700 | { |
3701 | bfd_set_error (bfd_error_no_memory); | |
3702 | goto error_return; | |
3703 | } | |
966e0a16 | 3704 | |
966e0a16 ILT |
3705 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 |
3706 | || bfd_read (ssext, 1, symhdr->issExtMax, abfd) != symhdr->issExtMax) | |
80425e6c | 3707 | goto error_return; |
966e0a16 ILT |
3708 | |
3709 | /* Look through the external symbols to see if they define some | |
3710 | symbol that is currently undefined. */ | |
3711 | ext_ptr = (char *) external_ext; | |
3712 | ext_end = ext_ptr + esize; | |
3713 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size) | |
3714 | { | |
3715 | EXTR esym; | |
3716 | boolean def; | |
3717 | const char *name; | |
3718 | struct bfd_link_hash_entry *h; | |
3719 | ||
3720 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3721 | ||
3722 | /* See if this symbol defines something. */ | |
3723 | if (esym.asym.st != stGlobal | |
3724 | && esym.asym.st != stLabel | |
3725 | && esym.asym.st != stProc) | |
3726 | continue; | |
3727 | ||
3728 | switch (esym.asym.sc) | |
3729 | { | |
3730 | case scText: | |
3731 | case scData: | |
3732 | case scBss: | |
3733 | case scAbs: | |
3734 | case scSData: | |
3735 | case scSBss: | |
3736 | case scRData: | |
3737 | case scCommon: | |
3738 | case scSCommon: | |
3739 | case scInit: | |
3740 | case scFini: | |
3741 | def = true; | |
3742 | break; | |
3743 | default: | |
3744 | def = false; | |
3745 | break; | |
3746 | } | |
3747 | ||
3748 | if (! def) | |
3749 | continue; | |
3750 | ||
3751 | name = ssext + esym.asym.iss; | |
3752 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); | |
3753 | ||
3754 | /* Unlike the generic linker, we do not pull in elements because | |
3755 | of common symbols. */ | |
3756 | if (h == (struct bfd_link_hash_entry *) NULL | |
3757 | || h->type != bfd_link_hash_undefined) | |
3758 | continue; | |
3759 | ||
3760 | /* Include this element. */ | |
3761 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
80425e6c | 3762 | goto error_return; |
966e0a16 | 3763 | if (! ecoff_link_add_externals (abfd, info, external_ext, ssext)) |
80425e6c | 3764 | goto error_return; |
966e0a16 ILT |
3765 | |
3766 | *pneeded = true; | |
80425e6c | 3767 | goto successful_return; |
966e0a16 ILT |
3768 | } |
3769 | ||
80425e6c JK |
3770 | successful_return: |
3771 | if (external_ext != NULL) | |
3772 | free (external_ext); | |
3773 | if (ssext != NULL) | |
3774 | free (ssext); | |
966e0a16 | 3775 | return true; |
80425e6c JK |
3776 | error_return: |
3777 | if (external_ext != NULL) | |
3778 | free (external_ext); | |
3779 | if (ssext != NULL) | |
3780 | free (ssext); | |
3781 | return false; | |
966e0a16 ILT |
3782 | } |
3783 | ||
3784 | /* Add symbols from an ECOFF object file to the global linker hash | |
3785 | table. */ | |
3786 | ||
3787 | static boolean | |
3788 | ecoff_link_add_object_symbols (abfd, info) | |
3789 | bfd *abfd; | |
3790 | struct bfd_link_info *info; | |
3791 | { | |
3792 | HDRR *symhdr; | |
3793 | bfd_size_type external_ext_size; | |
80425e6c | 3794 | PTR external_ext = NULL; |
966e0a16 | 3795 | size_t esize; |
80425e6c JK |
3796 | char *ssext = NULL; |
3797 | boolean result; | |
966e0a16 ILT |
3798 | |
3799 | if (! ecoff_slurp_symbolic_header (abfd)) | |
3800 | return false; | |
3801 | ||
3802 | /* If there are no symbols, we don't want it. */ | |
3803 | if (bfd_get_symcount (abfd) == 0) | |
3804 | return true; | |
3805 | ||
3806 | symhdr = &ecoff_data (abfd)->debug_info.symbolic_header; | |
3807 | ||
3808 | /* Read in the external symbols and external strings. */ | |
3809 | external_ext_size = ecoff_backend (abfd)->debug_swap.external_ext_size; | |
3810 | esize = symhdr->iextMax * external_ext_size; | |
80425e6c | 3811 | external_ext = (PTR) malloc (esize); |
a3a33af3 | 3812 | if (external_ext == NULL && esize != 0) |
80425e6c JK |
3813 | { |
3814 | bfd_set_error (bfd_error_no_memory); | |
3815 | goto error_return; | |
3816 | } | |
3817 | ||
966e0a16 ILT |
3818 | if (bfd_seek (abfd, symhdr->cbExtOffset, SEEK_SET) != 0 |
3819 | || bfd_read (external_ext, 1, esize, abfd) != esize) | |
80425e6c JK |
3820 | goto error_return; |
3821 | ||
3822 | ssext = (char *) malloc (symhdr->issExtMax); | |
a3a33af3 | 3823 | if (ssext == NULL && symhdr->issExtMax != 0) |
80425e6c JK |
3824 | { |
3825 | bfd_set_error (bfd_error_no_memory); | |
3826 | goto error_return; | |
3827 | } | |
966e0a16 | 3828 | |
966e0a16 ILT |
3829 | if (bfd_seek (abfd, symhdr->cbSsExtOffset, SEEK_SET) != 0 |
3830 | || bfd_read (ssext, 1, symhdr->issExtMax, abfd) != symhdr->issExtMax) | |
80425e6c JK |
3831 | goto error_return; |
3832 | ||
3833 | result = ecoff_link_add_externals (abfd, info, external_ext, ssext); | |
3834 | ||
3835 | if (ssext != NULL) | |
3836 | free (ssext); | |
3837 | if (external_ext != NULL) | |
3838 | free (external_ext); | |
3839 | return result; | |
3840 | ||
3841 | error_return: | |
3842 | if (ssext != NULL) | |
3843 | free (ssext); | |
3844 | if (external_ext != NULL) | |
3845 | free (external_ext); | |
3846 | return false; | |
966e0a16 ILT |
3847 | } |
3848 | ||
3849 | /* Add the external symbols of an object file to the global linker | |
3850 | hash table. The external symbols and strings we are passed are | |
3851 | just allocated on the stack, and will be discarded. We must | |
3852 | explicitly save any information we may need later on in the link. | |
3853 | We do not want to read the external symbol information again. */ | |
3854 | ||
3855 | static boolean | |
3856 | ecoff_link_add_externals (abfd, info, external_ext, ssext) | |
3857 | bfd *abfd; | |
3858 | struct bfd_link_info *info; | |
3859 | PTR external_ext; | |
3860 | char *ssext; | |
3861 | { | |
3862 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
3863 | void (* const swap_ext_in) PARAMS ((bfd *, PTR, EXTR *)) | |
3864 | = backend->debug_swap.swap_ext_in; | |
3865 | bfd_size_type external_ext_size = backend->debug_swap.external_ext_size; | |
3866 | unsigned long ext_count; | |
3867 | struct ecoff_link_hash_entry **sym_hash; | |
3868 | char *ext_ptr; | |
3869 | char *ext_end; | |
3870 | ||
3871 | ext_count = ecoff_data (abfd)->debug_info.symbolic_header.iextMax; | |
3872 | ||
3873 | sym_hash = ((struct ecoff_link_hash_entry **) | |
3874 | bfd_alloc (abfd, | |
3875 | ext_count * sizeof (struct bfd_link_hash_entry *))); | |
9783e04a DM |
3876 | if (!sym_hash) |
3877 | { | |
d1ad85a6 | 3878 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
3879 | return false; |
3880 | } | |
966e0a16 ILT |
3881 | ecoff_data (abfd)->sym_hashes = sym_hash; |
3882 | ||
3883 | ext_ptr = (char *) external_ext; | |
3884 | ext_end = ext_ptr + ext_count * external_ext_size; | |
3885 | for (; ext_ptr < ext_end; ext_ptr += external_ext_size, sym_hash++) | |
3886 | { | |
3887 | EXTR esym; | |
3888 | boolean skip; | |
3889 | bfd_vma value; | |
3890 | asection *section; | |
3891 | const char *name; | |
3892 | struct ecoff_link_hash_entry *h; | |
3893 | ||
3894 | *sym_hash = NULL; | |
3895 | ||
3896 | (*swap_ext_in) (abfd, (PTR) ext_ptr, &esym); | |
3897 | ||
3898 | /* Skip debugging symbols. */ | |
3899 | skip = false; | |
3900 | switch (esym.asym.st) | |
3901 | { | |
3902 | case stGlobal: | |
3903 | case stStatic: | |
3904 | case stLabel: | |
3905 | case stProc: | |
3906 | case stStaticProc: | |
3907 | break; | |
3908 | default: | |
3909 | skip = true; | |
3910 | break; | |
3911 | } | |
3912 | ||
3913 | if (skip) | |
3914 | continue; | |
3915 | ||
3916 | /* Get the information for this symbol. */ | |
3917 | value = esym.asym.value; | |
3918 | switch (esym.asym.sc) | |
3919 | { | |
3920 | default: | |
3921 | case scNil: | |
3922 | case scRegister: | |
3923 | case scCdbLocal: | |
3924 | case scBits: | |
3925 | case scCdbSystem: | |
3926 | case scRegImage: | |
3927 | case scInfo: | |
3928 | case scUserStruct: | |
3929 | case scVar: | |
3930 | case scVarRegister: | |
3931 | case scVariant: | |
3932 | case scBasedVar: | |
3933 | case scXData: | |
3934 | case scPData: | |
3935 | section = NULL; | |
3936 | break; | |
3937 | case scText: | |
3938 | section = bfd_make_section_old_way (abfd, ".text"); | |
3939 | value -= section->vma; | |
3940 | break; | |
3941 | case scData: | |
3942 | section = bfd_make_section_old_way (abfd, ".data"); | |
3943 | value -= section->vma; | |
3944 | break; | |
3945 | case scBss: | |
3946 | section = bfd_make_section_old_way (abfd, ".bss"); | |
3947 | value -= section->vma; | |
3948 | break; | |
3949 | case scAbs: | |
3950 | section = &bfd_abs_section; | |
3951 | break; | |
3952 | case scUndefined: | |
3953 | section = &bfd_und_section; | |
3954 | break; | |
3955 | case scSData: | |
3956 | section = bfd_make_section_old_way (abfd, ".sdata"); | |
3957 | value -= section->vma; | |
3958 | break; | |
3959 | case scSBss: | |
3960 | section = bfd_make_section_old_way (abfd, ".sbss"); | |
3961 | value -= section->vma; | |
3962 | break; | |
3963 | case scRData: | |
3964 | section = bfd_make_section_old_way (abfd, ".rdata"); | |
3965 | value -= section->vma; | |
3966 | break; | |
3967 | case scCommon: | |
3968 | if (value > ecoff_data (abfd)->gp_size) | |
3969 | { | |
3970 | section = &bfd_com_section; | |
3971 | break; | |
3972 | } | |
3973 | /* Fall through. */ | |
3974 | case scSCommon: | |
3975 | if (ecoff_scom_section.name == NULL) | |
3976 | { | |
3977 | /* Initialize the small common section. */ | |
3978 | ecoff_scom_section.name = SCOMMON; | |
3979 | ecoff_scom_section.flags = SEC_IS_COMMON; | |
3980 | ecoff_scom_section.output_section = &ecoff_scom_section; | |
3981 | ecoff_scom_section.symbol = &ecoff_scom_symbol; | |
3982 | ecoff_scom_section.symbol_ptr_ptr = &ecoff_scom_symbol_ptr; | |
3983 | ecoff_scom_symbol.name = SCOMMON; | |
3984 | ecoff_scom_symbol.flags = BSF_SECTION_SYM; | |
3985 | ecoff_scom_symbol.section = &ecoff_scom_section; | |
3986 | ecoff_scom_symbol_ptr = &ecoff_scom_symbol; | |
3987 | } | |
3988 | section = &ecoff_scom_section; | |
3989 | break; | |
3990 | case scSUndefined: | |
3991 | section = &bfd_und_section; | |
3992 | break; | |
3993 | case scInit: | |
3994 | section = bfd_make_section_old_way (abfd, ".init"); | |
3995 | value -= section->vma; | |
3996 | break; | |
3997 | case scFini: | |
3998 | section = bfd_make_section_old_way (abfd, ".fini"); | |
3999 | value -= section->vma; | |
4000 | break; | |
4001 | } | |
4002 | ||
4003 | if (section == (asection *) NULL) | |
4004 | continue; | |
4005 | ||
4006 | name = ssext + esym.asym.iss; | |
4007 | ||
4008 | if (! (_bfd_generic_link_add_one_symbol | |
4009 | (info, abfd, name, BSF_GLOBAL, section, value, | |
a3a33af3 | 4010 | (const char *) NULL, true, true, |
966e0a16 ILT |
4011 | (struct bfd_link_hash_entry **) &h))) |
4012 | return false; | |
4013 | ||
4014 | *sym_hash = h; | |
4015 | ||
4016 | /* If we are building an ECOFF hash table, save the external | |
4017 | symbol information. */ | |
4018 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) | |
4019 | { | |
4020 | if (h->abfd == (bfd *) NULL | |
4021 | || (section != &bfd_und_section | |
4022 | && (! bfd_is_com_section (section) | |
4023 | || h->root.type != bfd_link_hash_defined))) | |
4024 | { | |
4025 | h->abfd = abfd; | |
4026 | h->esym = esym; | |
4027 | } | |
4028 | } | |
4029 | } | |
4030 | ||
4031 | return true; | |
4032 | } | |
4033 | \f | |
4034 | /* ECOFF final link routines. */ | |
4035 | ||
4036 | static boolean ecoff_final_link_debug_accumulate | |
3f048f7f ILT |
4037 | PARAMS ((bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *, |
4038 | PTR handle)); | |
966e0a16 ILT |
4039 | static boolean ecoff_link_write_external |
4040 | PARAMS ((struct ecoff_link_hash_entry *, PTR)); | |
4041 | static boolean ecoff_indirect_link_order | |
4042 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
4043 | struct bfd_link_order *)); | |
a3a33af3 ILT |
4044 | static boolean ecoff_reloc_link_order |
4045 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
4046 | struct bfd_link_order *)); | |
966e0a16 ILT |
4047 | |
4048 | /* ECOFF final link routine. This looks through all the input BFDs | |
4049 | and gathers together all the debugging information, and then | |
4050 | processes all the link order information. This may cause it to | |
4051 | close and reopen some input BFDs; I'll see how bad this is. */ | |
4052 | ||
4053 | boolean | |
4054 | ecoff_bfd_final_link (abfd, info) | |
4055 | bfd *abfd; | |
4056 | struct bfd_link_info *info; | |
4057 | { | |
4058 | const struct ecoff_backend_data * const backend = ecoff_backend (abfd); | |
4059 | struct ecoff_debug_info * const debug = &ecoff_data (abfd)->debug_info; | |
4060 | HDRR *symhdr; | |
3f048f7f | 4061 | PTR handle; |
966e0a16 ILT |
4062 | register bfd *input_bfd; |
4063 | asection *o; | |
4064 | struct bfd_link_order *p; | |
4065 | ||
4066 | /* We accumulate the debugging information counts in the symbolic | |
4067 | header. */ | |
4068 | symhdr = &debug->symbolic_header; | |
966e0a16 ILT |
4069 | symhdr->vstamp = 0; |
4070 | symhdr->ilineMax = 0; | |
4071 | symhdr->cbLine = 0; | |
4072 | symhdr->idnMax = 0; | |
4073 | symhdr->ipdMax = 0; | |
4074 | symhdr->isymMax = 0; | |
4075 | symhdr->ioptMax = 0; | |
4076 | symhdr->iauxMax = 0; | |
4077 | symhdr->issMax = 0; | |
4078 | symhdr->issExtMax = 0; | |
4079 | symhdr->ifdMax = 0; | |
4080 | symhdr->crfd = 0; | |
4081 | symhdr->iextMax = 0; | |
4082 | ||
4083 | /* We accumulate the debugging information itself in the debug_info | |
4084 | structure. */ | |
3f048f7f ILT |
4085 | debug->line = NULL; |
4086 | debug->external_dnr = NULL; | |
4087 | debug->external_pdr = NULL; | |
4088 | debug->external_sym = NULL; | |
4089 | debug->external_opt = NULL; | |
4090 | debug->external_aux = NULL; | |
4091 | debug->ss = NULL; | |
966e0a16 | 4092 | debug->ssext = debug->ssext_end = NULL; |
3f048f7f ILT |
4093 | debug->external_fdr = NULL; |
4094 | debug->external_rfd = NULL; | |
966e0a16 ILT |
4095 | debug->external_ext = debug->external_ext_end = NULL; |
4096 | ||
3f048f7f ILT |
4097 | handle = bfd_ecoff_debug_init (abfd, debug, &backend->debug_swap, info); |
4098 | if (handle == (PTR) NULL) | |
4099 | return false; | |
4100 | ||
966e0a16 ILT |
4101 | /* Accumulate the debugging symbols from each input BFD. */ |
4102 | for (input_bfd = info->input_bfds; | |
4103 | input_bfd != (bfd *) NULL; | |
4104 | input_bfd = input_bfd->link_next) | |
4105 | { | |
4106 | boolean ret; | |
4107 | ||
966e0a16 | 4108 | if (bfd_get_flavour (input_bfd) == bfd_target_ecoff_flavour) |
3f048f7f ILT |
4109 | { |
4110 | /* Abitrarily set the symbolic header vstamp to the vstamp | |
4111 | of the first object file in the link. */ | |
4112 | if (symhdr->vstamp == 0) | |
4113 | symhdr->vstamp | |
4114 | = ecoff_data (input_bfd)->debug_info.symbolic_header.vstamp; | |
4115 | ret = ecoff_final_link_debug_accumulate (abfd, input_bfd, info, | |
4116 | handle); | |
4117 | } | |
966e0a16 | 4118 | else |
3f048f7f ILT |
4119 | ret = bfd_ecoff_debug_accumulate_other (handle, abfd, |
4120 | debug, &backend->debug_swap, | |
4121 | input_bfd, info); | |
966e0a16 ILT |
4122 | if (! ret) |
4123 | return false; | |
4124 | ||
4125 | /* Combine the register masks. */ | |
4126 | ecoff_data (abfd)->gprmask |= ecoff_data (input_bfd)->gprmask; | |
4127 | ecoff_data (abfd)->fprmask |= ecoff_data (input_bfd)->fprmask; | |
4128 | ecoff_data (abfd)->cprmask[0] |= ecoff_data (input_bfd)->cprmask[0]; | |
4129 | ecoff_data (abfd)->cprmask[1] |= ecoff_data (input_bfd)->cprmask[1]; | |
4130 | ecoff_data (abfd)->cprmask[2] |= ecoff_data (input_bfd)->cprmask[2]; | |
4131 | ecoff_data (abfd)->cprmask[3] |= ecoff_data (input_bfd)->cprmask[3]; | |
4132 | } | |
4133 | ||
4134 | /* Write out the external symbols. */ | |
4135 | ecoff_link_hash_traverse (ecoff_hash_table (info), | |
4136 | ecoff_link_write_external, | |
4137 | (PTR) abfd); | |
4138 | ||
4139 | if (info->relocateable) | |
4140 | { | |
4141 | /* We need to make a pass over the link_orders to count up the | |
4142 | number of relocations we will need to output, so that we know | |
4143 | how much space they will take up. */ | |
4144 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4145 | { | |
4146 | o->reloc_count = 0; | |
4147 | for (p = o->link_order_head; | |
4148 | p != (struct bfd_link_order *) NULL; | |
4149 | p = p->next) | |
4150 | if (p->type == bfd_indirect_link_order) | |
4151 | o->reloc_count += p->u.indirect.section->reloc_count; | |
a3a33af3 ILT |
4152 | else if (p->type == bfd_section_reloc_link_order |
4153 | || p->type == bfd_symbol_reloc_link_order) | |
4154 | ++o->reloc_count; | |
966e0a16 | 4155 | } |
3f048f7f ILT |
4156 | } |
4157 | ||
4158 | /* Compute the reloc and symbol file positions. */ | |
4159 | ecoff_compute_reloc_file_positions (abfd); | |
4160 | ||
4161 | /* Write out the debugging information. */ | |
4162 | if (! bfd_ecoff_write_accumulated_debug (handle, abfd, debug, | |
4163 | &backend->debug_swap, info, | |
4164 | ecoff_data (abfd)->sym_filepos)) | |
4165 | return false; | |
966e0a16 | 4166 | |
3f048f7f | 4167 | bfd_ecoff_debug_free (handle, abfd, debug, &backend->debug_swap, info); |
966e0a16 | 4168 | |
3f048f7f ILT |
4169 | if (info->relocateable) |
4170 | { | |
966e0a16 ILT |
4171 | /* Now reset the reloc_count field of the sections in the output |
4172 | BFD to 0, so that we can use them to keep track of how many | |
4173 | relocs we have output thus far. */ | |
4174 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4175 | o->reloc_count = 0; | |
4176 | } | |
4177 | ||
4178 | /* Get a value for the GP register. */ | |
4179 | if (ecoff_data (abfd)->gp == 0) | |
4180 | { | |
4181 | struct bfd_link_hash_entry *h; | |
4182 | ||
4183 | h = bfd_link_hash_lookup (info->hash, "_gp", false, false, true); | |
4184 | if (h != (struct bfd_link_hash_entry *) NULL | |
4185 | && h->type == bfd_link_hash_defined) | |
4186 | ecoff_data (abfd)->gp = (h->u.def.value | |
4187 | + h->u.def.section->output_section->vma | |
4188 | + h->u.def.section->output_offset); | |
4189 | else if (info->relocateable) | |
4190 | { | |
4191 | bfd_vma lo; | |
4192 | ||
4193 | /* Make up a value. */ | |
4194 | lo = (bfd_vma) -1; | |
4195 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4196 | { | |
4197 | if (o->vma < lo | |
4198 | && (strcmp (o->name, _SBSS) == 0 | |
4199 | || strcmp (o->name, _SDATA) == 0 | |
4200 | || strcmp (o->name, _LIT4) == 0 | |
4201 | || strcmp (o->name, _LIT8) == 0 | |
4202 | || strcmp (o->name, _LITA) == 0)) | |
4203 | lo = o->vma; | |
4204 | } | |
4205 | ecoff_data (abfd)->gp = lo + 0x8000; | |
4206 | } | |
4207 | else | |
4208 | { | |
4209 | /* If the relocate_section function needs to do a reloc | |
4210 | involving the GP value, it should make a reloc_dangerous | |
4211 | callback to warn that GP is not defined. */ | |
4212 | } | |
4213 | } | |
4214 | ||
4215 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
4216 | { | |
4217 | /* Ignore any link_orders for the .reginfo section, which does | |
4218 | not really exist. */ | |
4219 | if (strcmp (o->name, REGINFO) == 0) | |
4220 | continue; | |
4221 | ||
4222 | for (p = o->link_order_head; | |
4223 | p != (struct bfd_link_order *) NULL; | |
4224 | p = p->next) | |
4225 | { | |
966e0a16 ILT |
4226 | if (p->type == bfd_indirect_link_order |
4227 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
4228 | == bfd_target_ecoff_flavour)) | |
4229 | { | |
4230 | if (! ecoff_indirect_link_order (abfd, info, o, p)) | |
4231 | return false; | |
4232 | } | |
a3a33af3 ILT |
4233 | else if (p->type == bfd_section_reloc_link_order |
4234 | || p->type == bfd_symbol_reloc_link_order) | |
4235 | { | |
4236 | if (! ecoff_reloc_link_order (abfd, info, o, p)) | |
4237 | return false; | |
4238 | } | |
966e0a16 ILT |
4239 | else |
4240 | { | |
4241 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
4242 | return false; | |
4243 | } | |
4244 | } | |
4245 | } | |
4246 | ||
4247 | bfd_get_symcount (abfd) = symhdr->iextMax + symhdr->isymMax; | |
4248 | ||
4249 | return true; | |
4250 | } | |
4251 | ||
4252 | /* Accumulate the debugging information for an input BFD into the | |
4253 | output BFD. This must read in the symbolic information of the | |
4254 | input BFD. */ | |
4255 | ||
4256 | static boolean | |
3f048f7f | 4257 | ecoff_final_link_debug_accumulate (output_bfd, input_bfd, info, handle) |
966e0a16 ILT |
4258 | bfd *output_bfd; |
4259 | bfd *input_bfd; | |
4260 | struct bfd_link_info *info; | |
3f048f7f | 4261 | PTR handle; |
966e0a16 ILT |
4262 | { |
4263 | struct ecoff_debug_info * const debug = &ecoff_data (input_bfd)->debug_info; | |
4264 | const struct ecoff_debug_swap * const swap = | |
4265 | &ecoff_backend (input_bfd)->debug_swap; | |
4266 | HDRR *symhdr = &debug->symbolic_header; | |
4267 | boolean ret; | |
4268 | ||
4269 | #define READ(ptr, offset, count, size, type) \ | |
4270 | if (symhdr->count == 0) \ | |
4271 | debug->ptr = NULL; \ | |
4272 | else \ | |
4273 | { \ | |
80425e6c JK |
4274 | debug->ptr = (type) malloc (size * symhdr->count); \ |
4275 | if (debug->ptr == NULL) \ | |
4276 | { \ | |
4277 | bfd_set_error (bfd_error_no_memory); \ | |
4278 | ret = false; \ | |
4279 | goto return_something; \ | |
4280 | } \ | |
966e0a16 ILT |
4281 | if ((bfd_seek (input_bfd, (file_ptr) symhdr->offset, SEEK_SET) \ |
4282 | != 0) \ | |
4283 | || (bfd_read (debug->ptr, size, symhdr->count, \ | |
4284 | input_bfd) != size * symhdr->count)) \ | |
80425e6c JK |
4285 | { \ |
4286 | ret = false; \ | |
4287 | goto return_something; \ | |
4288 | } \ | |
966e0a16 ILT |
4289 | } |
4290 | ||
a3a33af3 ILT |
4291 | /* If raw_syments is not NULL, then the data was already by read by |
4292 | ecoff_slurp_symbolic_info. */ | |
4293 | if (ecoff_data (input_bfd)->raw_syments == NULL) | |
4294 | { | |
4295 | READ (line, cbLineOffset, cbLine, sizeof (unsigned char), | |
4296 | unsigned char *); | |
4297 | READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR); | |
4298 | READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR); | |
4299 | READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR); | |
4300 | READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR); | |
4301 | READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext), | |
4302 | union aux_ext *); | |
4303 | READ (ss, cbSsOffset, issMax, sizeof (char), char *); | |
4304 | READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR); | |
4305 | READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR); | |
4306 | } | |
966e0a16 ILT |
4307 | #undef READ |
4308 | ||
4309 | /* We do not read the external strings or the external symbols. */ | |
4310 | ||
4311 | ret = (bfd_ecoff_debug_accumulate | |
3f048f7f | 4312 | (handle, output_bfd, &ecoff_data (output_bfd)->debug_info, |
966e0a16 | 4313 | &ecoff_backend (output_bfd)->debug_swap, |
3f048f7f | 4314 | input_bfd, debug, swap, info)); |
966e0a16 | 4315 | |
80425e6c | 4316 | return_something: |
a3a33af3 ILT |
4317 | if (ecoff_data (input_bfd)->raw_syments == NULL) |
4318 | { | |
4319 | if (debug->line != NULL) | |
4320 | free (debug->line); | |
4321 | if (debug->external_dnr != NULL) | |
4322 | free (debug->external_dnr); | |
4323 | if (debug->external_pdr != NULL) | |
4324 | free (debug->external_pdr); | |
4325 | if (debug->external_sym != NULL) | |
4326 | free (debug->external_sym); | |
4327 | if (debug->external_opt != NULL) | |
4328 | free (debug->external_opt); | |
4329 | if (debug->external_aux != NULL) | |
4330 | free (debug->external_aux); | |
4331 | if (debug->ss != NULL) | |
4332 | free (debug->ss); | |
4333 | if (debug->external_fdr != NULL) | |
4334 | free (debug->external_fdr); | |
4335 | if (debug->external_rfd != NULL) | |
4336 | free (debug->external_rfd); | |
4337 | ||
4338 | /* Make sure we don't accidentally follow one of these pointers | |
4339 | into freed memory. */ | |
4340 | debug->line = NULL; | |
4341 | debug->external_dnr = NULL; | |
4342 | debug->external_pdr = NULL; | |
4343 | debug->external_sym = NULL; | |
4344 | debug->external_opt = NULL; | |
4345 | debug->external_aux = NULL; | |
4346 | debug->ss = NULL; | |
4347 | debug->external_fdr = NULL; | |
4348 | debug->external_rfd = NULL; | |
4349 | } | |
966e0a16 ILT |
4350 | |
4351 | return ret; | |
4352 | } | |
4353 | ||
4354 | /* Put out information for an external symbol. These come only from | |
4355 | the hash table. */ | |
4356 | ||
4357 | static boolean | |
4358 | ecoff_link_write_external (h, data) | |
4359 | struct ecoff_link_hash_entry *h; | |
4360 | PTR data; | |
4361 | { | |
4362 | bfd *output_bfd = (bfd *) data; | |
4363 | ||
4364 | /* FIXME: We should check if this symbol is being stripped. */ | |
4365 | ||
4366 | if (h->root.written) | |
4367 | return true; | |
4368 | ||
4369 | if (h->abfd == (bfd *) NULL) | |
4370 | { | |
4371 | h->esym.jmptbl = 0; | |
4372 | h->esym.cobol_main = 0; | |
4373 | h->esym.weakext = 0; | |
4374 | h->esym.reserved = 0; | |
4375 | h->esym.ifd = ifdNil; | |
4376 | h->esym.asym.value = 0; | |
966e0a16 | 4377 | h->esym.asym.st = stGlobal; |
a3a33af3 ILT |
4378 | |
4379 | if (h->root.type != bfd_link_hash_defined) | |
4380 | h->esym.asym.sc = scAbs; | |
4381 | else | |
4382 | { | |
4383 | asection *output_section; | |
4384 | const char *name; | |
4385 | ||
4386 | output_section = h->root.u.def.section->output_section; | |
4387 | name = bfd_section_name (output_section->owner, output_section); | |
4388 | ||
4389 | if (strcmp (name, _TEXT) == 0) | |
4390 | h->esym.asym.sc = scText; | |
4391 | else if (strcmp (name, _DATA) == 0) | |
4392 | h->esym.asym.sc = scData; | |
4393 | else if (strcmp (name, _SDATA) == 0) | |
4394 | h->esym.asym.sc = scSData; | |
4395 | else if (strcmp (name, _RDATA) == 0) | |
4396 | h->esym.asym.sc = scRData; | |
4397 | else if (strcmp (name, _BSS) == 0) | |
4398 | h->esym.asym.sc = scBss; | |
4399 | else if (strcmp (name, _SBSS) == 0) | |
4400 | h->esym.asym.sc = scSBss; | |
4401 | else if (strcmp (name, _INIT) == 0) | |
4402 | h->esym.asym.sc = scInit; | |
4403 | else if (strcmp (name, _FINI) == 0) | |
4404 | h->esym.asym.sc = scFini; | |
4405 | else if (strcmp (name, _PDATA) == 0) | |
4406 | h->esym.asym.sc = scPData; | |
4407 | else if (strcmp (name, _XDATA) == 0) | |
4408 | h->esym.asym.sc = scXData; | |
4409 | else | |
4410 | h->esym.asym.sc = scAbs; | |
4411 | } | |
4412 | ||
966e0a16 ILT |
4413 | h->esym.asym.reserved = 0; |
4414 | h->esym.asym.index = indexNil; | |
4415 | } | |
3f048f7f | 4416 | else if (h->esym.ifd != -1) |
966e0a16 | 4417 | { |
3f048f7f ILT |
4418 | struct ecoff_debug_info *debug; |
4419 | ||
966e0a16 ILT |
4420 | /* Adjust the FDR index for the symbol by that used for the |
4421 | input BFD. */ | |
3f048f7f ILT |
4422 | debug = &ecoff_data (h->abfd)->debug_info; |
4423 | BFD_ASSERT (h->esym.ifd >= 0 | |
4424 | && h->esym.ifd < debug->symbolic_header.ifdMax); | |
4425 | h->esym.ifd = debug->ifdmap[h->esym.ifd]; | |
966e0a16 ILT |
4426 | } |
4427 | ||
4428 | switch (h->root.type) | |
4429 | { | |
4430 | default: | |
4431 | case bfd_link_hash_new: | |
4432 | abort (); | |
4433 | case bfd_link_hash_undefined: | |
4434 | case bfd_link_hash_weak: | |
a3a33af3 ILT |
4435 | if (h->esym.asym.sc != scUndefined |
4436 | && h->esym.asym.sc != scSUndefined) | |
4437 | h->esym.asym.sc = scUndefined; | |
966e0a16 ILT |
4438 | break; |
4439 | case bfd_link_hash_defined: | |
4440 | if (h->esym.asym.sc == scUndefined | |
4441 | || h->esym.asym.sc == scSUndefined) | |
4442 | h->esym.asym.sc = scAbs; | |
4443 | else if (h->esym.asym.sc == scCommon) | |
4444 | h->esym.asym.sc = scBss; | |
4445 | else if (h->esym.asym.sc == scSCommon) | |
4446 | h->esym.asym.sc = scSBss; | |
4447 | h->esym.asym.value = (h->root.u.def.value | |
4448 | + h->root.u.def.section->output_section->vma | |
4449 | + h->root.u.def.section->output_offset); | |
4450 | break; | |
4451 | case bfd_link_hash_common: | |
4452 | if (h->esym.asym.sc != scCommon | |
4453 | && h->esym.asym.sc != scSCommon) | |
4454 | h->esym.asym.sc = scCommon; | |
4455 | h->esym.asym.value = h->root.u.c.size; | |
4456 | break; | |
4457 | case bfd_link_hash_indirect: | |
4458 | case bfd_link_hash_warning: | |
4459 | /* FIXME: Ignore these for now. The circumstances under which | |
4460 | they should be written out are not clear to me. */ | |
4461 | return true; | |
4462 | } | |
4463 | ||
4464 | /* bfd_ecoff_debug_one_external uses iextMax to keep track of the | |
4465 | symbol number. */ | |
4466 | h->indx = ecoff_data (output_bfd)->debug_info.symbolic_header.iextMax; | |
4467 | h->root.written = true; | |
4468 | ||
4469 | return (bfd_ecoff_debug_one_external | |
4470 | (output_bfd, &ecoff_data (output_bfd)->debug_info, | |
4471 | &ecoff_backend (output_bfd)->debug_swap, h->root.root.string, | |
4472 | &h->esym)); | |
4473 | } | |
4474 | ||
4475 | /* Relocate and write an ECOFF section into an ECOFF output file. */ | |
4476 | ||
4477 | static boolean | |
4478 | ecoff_indirect_link_order (output_bfd, info, output_section, link_order) | |
4479 | bfd *output_bfd; | |
4480 | struct bfd_link_info *info; | |
4481 | asection *output_section; | |
4482 | struct bfd_link_order *link_order; | |
4483 | { | |
4484 | asection *input_section; | |
4485 | bfd *input_bfd; | |
a3a33af3 ILT |
4486 | struct ecoff_section_tdata *section_tdata; |
4487 | bfd_size_type raw_size; | |
4488 | bfd_size_type cooked_size; | |
80425e6c | 4489 | bfd_byte *contents = NULL; |
966e0a16 ILT |
4490 | bfd_size_type external_reloc_size; |
4491 | bfd_size_type external_relocs_size; | |
80425e6c | 4492 | PTR external_relocs = NULL; |
966e0a16 ILT |
4493 | |
4494 | BFD_ASSERT ((output_section->flags & SEC_HAS_CONTENTS) != 0); | |
4495 | ||
4496 | if (link_order->size == 0) | |
4497 | return true; | |
4498 | ||
4499 | input_section = link_order->u.indirect.section; | |
4500 | input_bfd = input_section->owner; | |
a3a33af3 ILT |
4501 | section_tdata = ecoff_section_data (input_bfd, input_section); |
4502 | ||
4503 | raw_size = input_section->_raw_size; | |
4504 | cooked_size = input_section->_cooked_size; | |
4505 | if (cooked_size == 0) | |
4506 | cooked_size = raw_size; | |
966e0a16 ILT |
4507 | |
4508 | BFD_ASSERT (input_section->output_section == output_section); | |
4509 | BFD_ASSERT (input_section->output_offset == link_order->offset); | |
a3a33af3 ILT |
4510 | BFD_ASSERT (cooked_size == link_order->size); |
4511 | ||
4512 | /* Get the section contents. We allocate memory for the larger of | |
4513 | the size before relocating and the size after relocating. */ | |
4514 | contents = (bfd_byte *) malloc (raw_size >= cooked_size | |
4515 | ? raw_size | |
4516 | : cooked_size); | |
4517 | if (contents == NULL && raw_size != 0) | |
80425e6c JK |
4518 | { |
4519 | bfd_set_error (bfd_error_no_memory); | |
4520 | goto error_return; | |
4521 | } | |
966e0a16 | 4522 | |
a3a33af3 ILT |
4523 | /* If we are relaxing, the contents may have already been read into |
4524 | memory, in which case we copy them into our new buffer. We don't | |
4525 | simply reuse the old buffer in case cooked_size > raw_size. */ | |
4526 | if (section_tdata != (struct ecoff_section_tdata *) NULL | |
4527 | && section_tdata->contents != (bfd_byte *) NULL) | |
4528 | memcpy (contents, section_tdata->contents, raw_size); | |
4529 | else | |
4530 | { | |
4531 | if (! bfd_get_section_contents (input_bfd, input_section, | |
4532 | (PTR) contents, | |
4533 | (file_ptr) 0, raw_size)) | |
4534 | goto error_return; | |
4535 | } | |
4536 | ||
4537 | /* Get the relocs. If we are relaxing MIPS code, they will already | |
4538 | have been read in. Otherwise, we read them in now. */ | |
966e0a16 ILT |
4539 | external_reloc_size = ecoff_backend (input_bfd)->external_reloc_size; |
4540 | external_relocs_size = external_reloc_size * input_section->reloc_count; | |
a3a33af3 ILT |
4541 | |
4542 | if (section_tdata != (struct ecoff_section_tdata *) NULL) | |
4543 | external_relocs = section_tdata->external_relocs; | |
4544 | else | |
80425e6c | 4545 | { |
a3a33af3 ILT |
4546 | external_relocs = (PTR) malloc (external_relocs_size); |
4547 | if (external_relocs == NULL && external_relocs_size != 0) | |
4548 | { | |
4549 | bfd_set_error (bfd_error_no_memory); | |
4550 | goto error_return; | |
4551 | } | |
80425e6c | 4552 | |
a3a33af3 ILT |
4553 | if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0 |
4554 | || (bfd_read (external_relocs, 1, external_relocs_size, input_bfd) | |
4555 | != external_relocs_size)) | |
4556 | goto error_return; | |
4557 | } | |
966e0a16 ILT |
4558 | |
4559 | /* Relocate the section contents. */ | |
4560 | if (! ((*ecoff_backend (input_bfd)->relocate_section) | |
4561 | (output_bfd, info, input_bfd, input_section, contents, | |
4562 | external_relocs))) | |
80425e6c | 4563 | goto error_return; |
966e0a16 ILT |
4564 | |
4565 | /* Write out the relocated section. */ | |
4566 | if (! bfd_set_section_contents (output_bfd, | |
4567 | output_section, | |
4568 | (PTR) contents, | |
4569 | input_section->output_offset, | |
a3a33af3 | 4570 | cooked_size)) |
80425e6c | 4571 | goto error_return; |
966e0a16 ILT |
4572 | |
4573 | /* If we are producing relocateable output, the relocs were | |
4574 | modified, and we write them out now. We use the reloc_count | |
4575 | field of output_section to keep track of the number of relocs we | |
4576 | have output so far. */ | |
4577 | if (info->relocateable) | |
4578 | { | |
4579 | if (bfd_seek (output_bfd, | |
4580 | (output_section->rel_filepos + | |
4581 | output_section->reloc_count * external_reloc_size), | |
4582 | SEEK_SET) != 0 | |
4583 | || (bfd_write (external_relocs, 1, external_relocs_size, output_bfd) | |
4584 | != external_relocs_size)) | |
80425e6c | 4585 | goto error_return; |
966e0a16 ILT |
4586 | output_section->reloc_count += input_section->reloc_count; |
4587 | } | |
4588 | ||
80425e6c JK |
4589 | if (contents != NULL) |
4590 | free (contents); | |
a3a33af3 | 4591 | if (external_relocs != NULL && section_tdata == NULL) |
80425e6c | 4592 | free (external_relocs); |
966e0a16 | 4593 | return true; |
80425e6c JK |
4594 | |
4595 | error_return: | |
4596 | if (contents != NULL) | |
4597 | free (contents); | |
a3a33af3 | 4598 | if (external_relocs != NULL && section_tdata == NULL) |
80425e6c JK |
4599 | free (external_relocs); |
4600 | return false; | |
966e0a16 | 4601 | } |
a3a33af3 ILT |
4602 | |
4603 | /* Generate a reloc when linking an ECOFF file. This is a reloc | |
4604 | requested by the linker, and does come from any input file. This | |
4605 | is used to build constructor and destructor tables when linking | |
4606 | with -Ur. */ | |
4607 | ||
4608 | static boolean | |
4609 | ecoff_reloc_link_order (output_bfd, info, output_section, link_order) | |
4610 | bfd *output_bfd; | |
4611 | struct bfd_link_info *info; | |
4612 | asection *output_section; | |
4613 | struct bfd_link_order *link_order; | |
4614 | { | |
4615 | arelent rel; | |
4616 | struct internal_reloc in; | |
4617 | bfd_size_type external_reloc_size; | |
4618 | bfd_byte *rbuf; | |
4619 | boolean ok; | |
4620 | ||
4621 | /* We set up an arelent to pass to the backend adjust_reloc_out | |
4622 | routine. */ | |
4623 | rel.address = link_order->offset; | |
4624 | ||
4625 | rel.howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
4626 | if (rel.howto == (const reloc_howto_type *) NULL) | |
4627 | { | |
4628 | bfd_set_error (bfd_error_bad_value); | |
4629 | return false; | |
4630 | } | |
4631 | ||
4632 | if (link_order->type == bfd_section_reloc_link_order) | |
4633 | rel.sym_ptr_ptr = link_order->u.reloc.p->u.section->symbol_ptr_ptr; | |
4634 | else | |
4635 | { | |
4636 | /* We can't set up a reloc against a symbol correctly, because | |
4637 | we have no asymbol structure. Currently no adjust_reloc_out | |
4638 | routine cases. */ | |
4639 | rel.sym_ptr_ptr = (asymbol **) NULL; | |
4640 | } | |
4641 | ||
4642 | /* All ECOFF relocs are in-place. Put the addend into the object | |
4643 | file. */ | |
4644 | ||
4645 | BFD_ASSERT (rel.howto->partial_inplace); | |
4646 | if (link_order->u.reloc.p->addend != 0) | |
4647 | { | |
4648 | bfd_size_type size; | |
4649 | bfd_reloc_status_type rstat; | |
4650 | bfd_byte *buf; | |
4651 | boolean ok; | |
4652 | ||
4653 | size = bfd_get_reloc_size (rel.howto); | |
4654 | buf = (bfd_byte *) bfd_zmalloc (size); | |
4655 | if (buf == (bfd_byte *) NULL) | |
4656 | { | |
4657 | bfd_set_error (bfd_error_no_memory); | |
4658 | return false; | |
4659 | } | |
4660 | rstat = _bfd_relocate_contents (rel.howto, output_bfd, | |
4661 | link_order->u.reloc.p->addend, buf); | |
4662 | switch (rstat) | |
4663 | { | |
4664 | case bfd_reloc_ok: | |
4665 | break; | |
4666 | default: | |
4667 | case bfd_reloc_outofrange: | |
4668 | abort (); | |
4669 | case bfd_reloc_overflow: | |
4670 | if (! ((*info->callbacks->reloc_overflow) | |
4671 | (info, | |
4672 | (link_order->type == bfd_section_reloc_link_order | |
4673 | ? bfd_section_name (output_bfd, | |
4674 | link_order->u.reloc.p->u.section) | |
4675 | : link_order->u.reloc.p->u.name), | |
4676 | rel.howto->name, link_order->u.reloc.p->addend, | |
4677 | (bfd *) NULL, (asection *) NULL, (bfd_vma) 0))) | |
4678 | { | |
4679 | free (buf); | |
4680 | return false; | |
4681 | } | |
4682 | break; | |
4683 | } | |
4684 | ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf, | |
4685 | (file_ptr) link_order->offset, size); | |
4686 | free (buf); | |
4687 | if (! ok) | |
4688 | return false; | |
4689 | } | |
4690 | ||
4691 | rel.addend = 0; | |
4692 | ||
4693 | /* Move the information into a internal_reloc structure. */ | |
4694 | in.r_vaddr = (rel.address | |
4695 | + bfd_get_section_vma (output_bfd, output_section)); | |
4696 | in.r_type = rel.howto->type; | |
4697 | ||
4698 | if (link_order->type == bfd_symbol_reloc_link_order) | |
4699 | { | |
4700 | struct ecoff_link_hash_entry *h; | |
4701 | ||
4702 | h = ecoff_link_hash_lookup (ecoff_hash_table (info), | |
4703 | link_order->u.reloc.p->u.name, | |
4704 | false, false, true); | |
4705 | if (h != (struct ecoff_link_hash_entry *) NULL | |
4706 | && h->indx != -1) | |
4707 | in.r_symndx = h->indx; | |
4708 | else | |
4709 | { | |
4710 | if (! ((*info->callbacks->unattached_reloc) | |
4711 | (info, link_order->u.reloc.p->u.name, (bfd *) NULL, | |
4712 | (asection *) NULL, (bfd_vma) 0))) | |
4713 | return false; | |
4714 | in.r_symndx = 0; | |
4715 | } | |
4716 | in.r_extern = 1; | |
4717 | } | |
4718 | else | |
4719 | { | |
4720 | CONST char *name; | |
4721 | ||
4722 | name = bfd_get_section_name (output_bfd, | |
4723 | link_order->u.reloc.p->u.section); | |
4724 | if (strcmp (name, ".text") == 0) | |
4725 | in.r_symndx = RELOC_SECTION_TEXT; | |
4726 | else if (strcmp (name, ".rdata") == 0) | |
4727 | in.r_symndx = RELOC_SECTION_RDATA; | |
4728 | else if (strcmp (name, ".data") == 0) | |
4729 | in.r_symndx = RELOC_SECTION_DATA; | |
4730 | else if (strcmp (name, ".sdata") == 0) | |
4731 | in.r_symndx = RELOC_SECTION_SDATA; | |
4732 | else if (strcmp (name, ".sbss") == 0) | |
4733 | in.r_symndx = RELOC_SECTION_SBSS; | |
4734 | else if (strcmp (name, ".bss") == 0) | |
4735 | in.r_symndx = RELOC_SECTION_BSS; | |
4736 | else if (strcmp (name, ".init") == 0) | |
4737 | in.r_symndx = RELOC_SECTION_INIT; | |
4738 | else if (strcmp (name, ".lit8") == 0) | |
4739 | in.r_symndx = RELOC_SECTION_LIT8; | |
4740 | else if (strcmp (name, ".lit4") == 0) | |
4741 | in.r_symndx = RELOC_SECTION_LIT4; | |
4742 | else if (strcmp (name, ".xdata") == 0) | |
4743 | in.r_symndx = RELOC_SECTION_XDATA; | |
4744 | else if (strcmp (name, ".pdata") == 0) | |
4745 | in.r_symndx = RELOC_SECTION_PDATA; | |
4746 | else if (strcmp (name, ".fini") == 0) | |
4747 | in.r_symndx = RELOC_SECTION_FINI; | |
4748 | else if (strcmp (name, ".lita") == 0) | |
4749 | in.r_symndx = RELOC_SECTION_LITA; | |
4750 | else if (strcmp (name, "*ABS*") == 0) | |
4751 | in.r_symndx = RELOC_SECTION_ABS; | |
4752 | else | |
4753 | abort (); | |
4754 | in.r_extern = 0; | |
4755 | } | |
4756 | ||
4757 | /* Let the BFD backend adjust the reloc. */ | |
4758 | (*ecoff_backend (output_bfd)->adjust_reloc_out) (output_bfd, &rel, &in); | |
4759 | ||
4760 | /* Get some memory and swap out the reloc. */ | |
4761 | external_reloc_size = ecoff_backend (output_bfd)->external_reloc_size; | |
4762 | rbuf = (bfd_byte *) malloc (external_reloc_size); | |
4763 | if (rbuf == (bfd_byte *) NULL) | |
4764 | { | |
4765 | bfd_set_error (bfd_error_no_memory); | |
4766 | return false; | |
4767 | } | |
4768 | ||
4769 | (*ecoff_backend (output_bfd)->swap_reloc_out) (output_bfd, &in, (PTR) rbuf); | |
4770 | ||
4771 | ok = (bfd_seek (output_bfd, | |
4772 | (output_section->rel_filepos + | |
4773 | output_section->reloc_count * external_reloc_size), | |
4774 | SEEK_SET) == 0 | |
4775 | && (bfd_write ((PTR) rbuf, 1, external_reloc_size, output_bfd) | |
4776 | == external_reloc_size)); | |
4777 | ||
4778 | if (ok) | |
4779 | ++output_section->reloc_count; | |
4780 | ||
4781 | free (rbuf); | |
4782 | ||
4783 | return ok; | |
4784 | } |