Commit | Line | Data |
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252b5132 | 1 | /* IBM RS/6000 "XCOFF" back-end for BFD. |
ced7a2cc | 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 2000 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | FIXME: Can someone provide a transliteration of this name into ASCII? | |
5 | Using the following chars caused a compiler warning on HIUX (so I replaced | |
6 | them with octal escapes), and isn't useful without an understanding of what | |
7 | character set it is. | |
59d9f049 | 8 | Written by Metin G. Ozisik, Mimi Ph\373\364ng-Th\345o V\365, |
252b5132 RH |
9 | and John Gilmore. |
10 | Archive support from Damon A. Permezel. | |
11 | Contributed by IBM Corporation and Cygnus Support. | |
12 | ||
13 | This file is part of BFD, the Binary File Descriptor library. | |
14 | ||
15 | This program is free software; you can redistribute it and/or modify | |
16 | it under the terms of the GNU General Public License as published by | |
17 | the Free Software Foundation; either version 2 of the License, or | |
18 | (at your option) any later version. | |
19 | ||
20 | This program is distributed in the hope that it will be useful, | |
21 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | GNU General Public License for more details. | |
24 | ||
25 | You should have received a copy of the GNU General Public License | |
26 | along with this program; if not, write to the Free Software | |
27 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
28 | ||
29 | /* This port currently only handles reading object files, except when | |
30 | compiled on an RS/6000 host. -- no archive support, no core files. | |
31 | In all cases, it does not support writing. | |
32 | ||
252b5132 RH |
33 | This is in a separate file from coff-rs6000.c, because it includes |
34 | system include files that conflict with coff/rs6000.h. | |
35 | */ | |
36 | ||
37 | /* Internalcoff.h and coffcode.h modify themselves based on this flag. */ | |
38 | #define RS6000COFF_C 1 | |
39 | ||
40 | /* The AIX 4.1 kernel is obviously compiled with -D_LONG_LONG, so | |
41 | we have to define _LONG_LONG for older versions of gcc to get the | |
42 | proper alignments in the user structure. */ | |
43 | #if defined(_AIX41) && !defined(_LONG_LONG) | |
44 | #define _LONG_LONG | |
45 | #endif | |
46 | ||
47 | #include "bfd.h" | |
48 | #include "sysdep.h" | |
49 | #include "libbfd.h" | |
50 | ||
51 | #ifdef AIX_CORE | |
52 | ||
53 | /* AOUTHDR is defined by the above. We need another defn of it, from the | |
54 | system include files. Punt the old one and get us a new name for the | |
55 | typedef in the system include files. */ | |
56 | #ifdef AOUTHDR | |
57 | #undef AOUTHDR | |
58 | #endif | |
59 | #define AOUTHDR second_AOUTHDR | |
60 | ||
61 | #undef SCNHDR | |
62 | ||
63 | ||
64 | /* ------------------------------------------------------------------------ */ | |
59d9f049 | 65 | /* Support for core file stuff.. */ |
252b5132 RH |
66 | /* ------------------------------------------------------------------------ */ |
67 | ||
68 | #include <sys/user.h> | |
59d9f049 ND |
69 | #define __LDINFO_PTRACE32__ /* for __ld_info32 */ |
70 | #define __LDINFO_PTRACE64__ /* for __ld_info64 */ | |
252b5132 RH |
71 | #include <sys/ldr.h> |
72 | #include <sys/core.h> | |
59d9f049 ND |
73 | #include <sys/systemcfg.h> |
74 | ||
75 | #define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any) | |
76 | ||
77 | /* AIX 4.1 changed the names and locations of a few items in the core file. | |
78 | AIX 4.3 defined an entirely new structure, core_dumpx, but kept support for | |
79 | the previous 4.1 structure, core_dump. | |
80 | ||
81 | AIX_CORE_DUMPX_CORE is defined (by configure) on AIX 4.3+, and | |
82 | CORE_VERSION_1 is defined (by AIX core.h) as 2 on AIX 4.3+ and as 1 on AIX | |
83 | 4.1 and 4.2. AIX pre-4.1 (aka 3.x) either doesn't define CORE_VERSION_1 | |
84 | or else defines it as 0. */ | |
85 | ||
86 | #if defined(CORE_VERSION_1) && !CORE_VERSION_1 | |
87 | # undef CORE_VERSION_1 | |
88 | #endif | |
89 | ||
90 | /* The following union and macros allow this module to compile on all AIX | |
91 | versions and to handle both core_dumpx and core_dump on 4.3+. CNEW_*() | |
92 | and COLD_*() macros respectively retrieve core_dumpx and core_dump | |
93 | values. */ | |
94 | ||
95 | /* Union of 32-bit and 64-bit versions of ld_info. */ | |
96 | ||
97 | typedef union { | |
98 | #ifdef __ld_info32 | |
99 | struct __ld_info32 l32; | |
100 | struct __ld_info64 l64; | |
101 | #else | |
102 | struct ld_info l32; | |
103 | struct ld_info l64; | |
104 | #endif | |
105 | } LdInfo; | |
106 | ||
107 | /* Union of old and new core dump structures. */ | |
108 | ||
109 | typedef union { | |
110 | #ifdef AIX_CORE_DUMPX_CORE | |
111 | struct core_dumpx new; /* new AIX 4.3+ core dump */ | |
112 | #else | |
113 | struct core_dump new; /* for simpler coding */ | |
114 | #endif | |
115 | struct core_dump old; /* old AIX 4.2- core dump, still used on | |
116 | 4.3+ with appropriate SMIT config */ | |
117 | } CoreHdr; | |
118 | ||
119 | /* Union of old and new vm_info structures. */ | |
120 | ||
1605fc4f | 121 | #ifdef CORE_VERSION_1 |
59d9f049 ND |
122 | typedef union { |
123 | #ifdef AIX_CORE_DUMPX_CORE | |
124 | struct vm_infox new; | |
125 | #else | |
126 | struct vm_info new; | |
127 | #endif | |
128 | struct vm_info old; | |
129 | } VmInfo; | |
1605fc4f | 130 | #endif |
59d9f049 ND |
131 | |
132 | /* Return whether CoreHdr C is in new or old format. */ | |
133 | ||
134 | #ifdef AIX_CORE_DUMPX_CORE | |
135 | # define CORE_NEW(c) (!(c).old.c_entries) | |
136 | #else | |
137 | # define CORE_NEW(c) 0 | |
138 | #endif | |
139 | ||
140 | /* Return the c_stackorg field from struct core_dumpx C. */ | |
141 | ||
142 | #ifdef AIX_CORE_DUMPX_CORE | |
143 | # define CNEW_STACKORG(c) (c).c_stackorg | |
144 | #else | |
145 | # define CNEW_STACKORG(c) 0 | |
146 | #endif | |
147 | ||
148 | /* Return the offset to the loader region from struct core_dump C. */ | |
149 | ||
150 | #ifdef AIX_CORE_DUMPX_CORE | |
151 | # define CNEW_LOADER(c) (c).c_loader | |
152 | #else | |
153 | # define CNEW_LOADER(c) 0 | |
154 | #endif | |
155 | ||
156 | /* Return the offset to the loader region from struct core_dump C. */ | |
157 | ||
158 | #define COLD_LOADER(c) (c).c_tab | |
159 | ||
160 | /* Return the c_lsize field from struct core_dumpx C. */ | |
161 | ||
162 | #ifdef AIX_CORE_DUMPX_CORE | |
163 | # define CNEW_LSIZE(c) (c).c_lsize | |
164 | #else | |
165 | # define CNEW_LSIZE(c) 0 | |
166 | #endif | |
167 | ||
168 | /* Return the c_dataorg field from struct core_dumpx C. */ | |
252b5132 | 169 | |
59d9f049 ND |
170 | #ifdef AIX_CORE_DUMPX_CORE |
171 | # define CNEW_DATAORG(c) (c).c_dataorg | |
172 | #else | |
173 | # define CNEW_DATAORG(c) 0 | |
174 | #endif | |
252b5132 | 175 | |
59d9f049 | 176 | /* Return the c_datasize field from struct core_dumpx C. */ |
252b5132 | 177 | |
59d9f049 ND |
178 | #ifdef AIX_CORE_DUMPX_CORE |
179 | # define CNEW_DATASIZE(c) (c).c_datasize | |
180 | #else | |
181 | # define CNEW_DATASIZE(c) 0 | |
182 | #endif | |
183 | ||
184 | /* Return the c_impl field from struct core_dumpx C. */ | |
185 | ||
186 | #ifdef AIX_CORE_DUMPX_CORE | |
187 | # define CNEW_IMPL(c) (c).c_impl | |
188 | #else | |
189 | # define CNEW_IMPL(c) 0 | |
190 | #endif | |
191 | ||
192 | /* Return the command string from struct core_dumpx C. */ | |
193 | ||
194 | #ifdef AIX_CORE_DUMPX_CORE | |
195 | # define CNEW_COMM(c) (c).c_u.U_proc.pi_comm | |
196 | #else | |
197 | # define CNEW_COMM(c) 0 | |
198 | #endif | |
199 | ||
200 | /* Return the command string from struct core_dump C. */ | |
201 | ||
202 | #ifdef CORE_VERSION_1 | |
203 | # define COLD_COMM(c) (c).c_u.U_comm | |
204 | #else | |
205 | # define COLD_COMM(c) (c).c_u.u_comm | |
206 | #endif | |
252b5132 | 207 | |
59d9f049 | 208 | /* Return the struct __context64 pointer from struct core_dumpx C. */ |
252b5132 | 209 | |
59d9f049 ND |
210 | #ifdef AIX_CORE_DUMPX_CORE |
211 | # define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64 | |
212 | #else | |
213 | # define CNEW_CONTEXT64(c) c | |
214 | #endif | |
252b5132 | 215 | |
59d9f049 | 216 | /* Return the struct mstsave pointer from struct core_dumpx C. */ |
6ad49cca KB |
217 | |
218 | #ifdef AIX_CORE_DUMPX_CORE | |
59d9f049 | 219 | # define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32 |
6ad49cca | 220 | #else |
59d9f049 ND |
221 | # define CNEW_MSTSAVE(c) c |
222 | #endif | |
223 | ||
224 | /* Return the struct mstsave pointer from struct core_dump C. */ | |
225 | ||
252b5132 | 226 | #ifdef CORE_VERSION_1 |
59d9f049 | 227 | # define COLD_MSTSAVE(c) (c).c_mst |
252b5132 | 228 | #else |
59d9f049 | 229 | # define COLD_MSTSAVE(c) (c).c_u.u_save |
6ad49cca | 230 | #endif |
59d9f049 ND |
231 | |
232 | /* Return whether struct core_dumpx is from a 64-bit process. */ | |
233 | ||
234 | #ifdef AIX_CORE_DUMPX_CORE | |
235 | # define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc) | |
236 | #else | |
237 | # define CNEW_PROC64(c) 0 | |
238 | #endif | |
239 | ||
240 | /* Magic end-of-stack addresses for old core dumps. This is _very_ fragile, | |
241 | but I don't see any easy way to get that info right now. */ | |
242 | ||
243 | #ifdef CORE_VERSION_1 | |
244 | # define COLD_STACKEND 0x2ff23000 | |
245 | #else | |
246 | # define COLD_STACKEND 0x2ff80000 | |
252b5132 RH |
247 | #endif |
248 | ||
59d9f049 ND |
249 | /* Size of the leading portion that old and new core dump structures have in |
250 | common. */ | |
251 | #define CORE_COMMONSZ ((int)&((struct core_dump *)0)->c_entries + \ | |
252 | sizeof (((struct core_dump *)0)->c_entries)) | |
252b5132 | 253 | |
59d9f049 ND |
254 | /* Try to read into CORE the header from the core file associated with ABFD. |
255 | Return success. */ | |
256 | ||
257 | static boolean | |
258 | read_hdr (bfd *abfd, CoreHdr *core) | |
259 | { | |
260 | bfd_size_type size; | |
261 | ||
262 | if (bfd_seek (abfd, 0, SEEK_SET) != 0) | |
263 | return false; | |
264 | ||
265 | /* Read the leading portion that old and new core dump structures have in | |
266 | common. */ | |
267 | if (bfd_read (core, CORE_COMMONSZ, 1, abfd) != CORE_COMMONSZ) | |
268 | return false; | |
269 | ||
270 | /* Read the trailing portion of the structure. */ | |
271 | size = CORE_NEW (*core) ? sizeof (core->new) : sizeof (core->old) | |
272 | - CORE_COMMONSZ; | |
273 | return bfd_read ((char *)core + CORE_COMMONSZ, size, 1, abfd) == size; | |
274 | } | |
252b5132 RH |
275 | |
276 | static asection * | |
277 | make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos) | |
278 | bfd *abfd; | |
279 | CONST char *name; | |
280 | flagword flags; | |
281 | bfd_size_type _raw_size; | |
282 | bfd_vma vma; | |
283 | file_ptr filepos; | |
284 | { | |
285 | asection *asect; | |
286 | ||
287 | asect = bfd_make_section_anyway (abfd, name); | |
288 | if (!asect) | |
289 | return NULL; | |
290 | ||
291 | asect->flags = flags; | |
292 | asect->_raw_size = _raw_size; | |
293 | asect->vma = vma; | |
294 | asect->filepos = filepos; | |
295 | asect->alignment_power = 8; | |
296 | ||
297 | return asect; | |
298 | } | |
299 | ||
300 | /* Decide if a given bfd represents a `core' file or not. There really is no | |
301 | magic number or anything like, in rs6000coff. */ | |
302 | ||
303 | const bfd_target * | |
304 | rs6000coff_core_p (abfd) | |
305 | bfd *abfd; | |
306 | { | |
59d9f049 | 307 | CoreHdr core; |
252b5132 | 308 | struct stat statbuf; |
59d9f049 | 309 | bfd_size_type size; |
252b5132 RH |
310 | char *tmpptr; |
311 | ||
59d9f049 ND |
312 | /* Values from new and old core structures. */ |
313 | int c_flag; | |
314 | file_ptr c_stack, c_regoff, c_loader; | |
315 | bfd_size_type c_size, c_regsize, c_lsize; | |
316 | bfd_vma c_stackend; | |
317 | void *c_regptr; | |
318 | int proc64; | |
252b5132 | 319 | |
59d9f049 | 320 | if (!read_hdr (abfd, &core)) |
252b5132 RH |
321 | { |
322 | if (bfd_get_error () != bfd_error_system_call) | |
323 | bfd_set_error (bfd_error_wrong_format); | |
324 | return NULL; | |
325 | } | |
326 | ||
59d9f049 ND |
327 | /* Copy fields from new or old core structure. */ |
328 | if (CORE_NEW (core)) | |
329 | { | |
330 | c_flag = core.new.c_flag; | |
331 | c_stack = (file_ptr) core.new.c_stack; | |
332 | c_size = core.new.c_size; | |
333 | c_stackend = CNEW_STACKORG (core.new) + c_size; | |
334 | c_lsize = CNEW_LSIZE (core.new); | |
335 | c_loader = CNEW_LOADER (core.new); | |
336 | proc64 = CNEW_PROC64 (core.new); | |
337 | } | |
338 | else | |
339 | { | |
340 | c_flag = core.old.c_flag; | |
341 | c_stack = (file_ptr) core.old.c_stack; | |
342 | c_size = core.old.c_size; | |
343 | c_stackend = COLD_STACKEND; | |
344 | c_lsize = 0x7ffffff; | |
345 | c_loader = (file_ptr) COLD_LOADER (core.old); | |
346 | proc64 = 0; | |
347 | } | |
348 | ||
349 | if (proc64) | |
350 | { | |
351 | c_regsize = sizeof (CNEW_CONTEXT64 (core.new)); | |
352 | c_regptr = &CNEW_CONTEXT64 (core.new); | |
353 | } | |
354 | else if (CORE_NEW (core)) | |
355 | { | |
356 | c_regsize = sizeof (CNEW_MSTSAVE (core.new)); | |
357 | c_regptr = &CNEW_MSTSAVE (core.new); | |
358 | } | |
359 | else | |
360 | { | |
361 | c_regsize = sizeof (COLD_MSTSAVE (core.old)); | |
362 | c_regptr = &COLD_MSTSAVE (core.old); | |
363 | } | |
364 | c_regoff = (char *)c_regptr - (char *)&core; | |
365 | ||
252b5132 RH |
366 | if (bfd_stat (abfd, &statbuf) < 0) |
367 | { | |
368 | bfd_set_error (bfd_error_system_call); | |
369 | return NULL; | |
370 | } | |
371 | ||
372 | /* If the core file ulimit is too small, the system will first | |
373 | omit the data segment, then omit the stack, then decline to | |
374 | dump core altogether (as far as I know UBLOCK_VALID and LE_VALID | |
375 | are always set) (this is based on experimentation on AIX 3.2). | |
376 | Now, the thing is that GDB users will be surprised | |
377 | if segments just silently don't appear (well, maybe they would | |
378 | think to check "info files", I don't know). | |
379 | ||
380 | For the data segment, we have no choice but to keep going if it's | |
381 | not there, since the default behavior is not to dump it (regardless | |
59d9f049 | 382 | of the ulimit, it's based on SA_FULLDUMP). But for the stack segment, |
252b5132 RH |
383 | if it's not there, we refuse to have anything to do with this core |
384 | file. The usefulness of a core dump without a stack segment is pretty | |
385 | limited anyway. */ | |
59d9f049 ND |
386 | |
387 | if (!(c_flag & UBLOCK_VALID) | |
388 | || !(c_flag & LE_VALID)) | |
252b5132 RH |
389 | { |
390 | bfd_set_error (bfd_error_wrong_format); | |
391 | return NULL; | |
392 | } | |
393 | ||
59d9f049 | 394 | if (!(c_flag & USTACK_VALID)) |
252b5132 RH |
395 | { |
396 | bfd_set_error (bfd_error_file_truncated); | |
397 | return NULL; | |
398 | } | |
399 | ||
400 | /* Don't check the core file size for a full core, AIX 4.1 includes | |
59d9f049 ND |
401 | additional shared library sections in a full core. */ |
402 | if (!(c_flag & (FULL_CORE | CORE_TRUNC))) | |
252b5132 | 403 | { |
59d9f049 ND |
404 | /* If the size is wrong, it means we're misinterpreting something. */ |
405 | if (c_stack + (file_ptr) c_size != statbuf.st_size) | |
406 | { | |
407 | bfd_set_error (bfd_error_wrong_format); | |
408 | return NULL; | |
409 | } | |
252b5132 RH |
410 | } |
411 | ||
412 | /* Sanity check on the c_tab field. */ | |
59d9f049 ND |
413 | if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old || |
414 | c_loader >= statbuf.st_size || | |
415 | c_loader >= c_stack)) | |
252b5132 RH |
416 | { |
417 | bfd_set_error (bfd_error_wrong_format); | |
418 | return NULL; | |
419 | } | |
420 | ||
421 | /* Issue warning if the core file was truncated during writing. */ | |
59d9f049 | 422 | if (c_flag & CORE_TRUNC) |
252b5132 RH |
423 | (*_bfd_error_handler) (_("%s: warning core file truncated"), |
424 | bfd_get_filename (abfd)); | |
425 | ||
59d9f049 ND |
426 | /* Allocate core file header. */ |
427 | size = CORE_NEW (core) ? sizeof (core.new) : sizeof (core.old); | |
428 | tmpptr = (char*) bfd_zalloc (abfd, size); | |
252b5132 RH |
429 | if (!tmpptr) |
430 | return NULL; | |
252b5132 RH |
431 | |
432 | /* Copy core file header. */ | |
59d9f049 ND |
433 | memcpy (tmpptr, &core, size); |
434 | set_tdata (abfd, tmpptr); | |
435 | ||
436 | /* Set architecture. */ | |
437 | if (CORE_NEW (core)) | |
438 | { | |
439 | enum bfd_architecture arch; | |
440 | unsigned long mach; | |
441 | ||
442 | switch (CNEW_IMPL (core.new)) | |
443 | { | |
444 | case POWER_RS1: | |
445 | case POWER_RSC: | |
446 | case POWER_RS2: | |
447 | arch = bfd_arch_rs6000; | |
448 | mach = bfd_mach_rs6k; | |
449 | break; | |
450 | default: | |
451 | arch = bfd_arch_powerpc; | |
452 | mach = bfd_mach_ppc; | |
453 | break; | |
454 | } | |
455 | bfd_default_set_arch_mach (abfd, arch, mach); | |
456 | } | |
252b5132 RH |
457 | |
458 | /* .stack section. */ | |
459 | if (!make_bfd_asection (abfd, ".stack", | |
59d9f049 ND |
460 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, |
461 | c_size, c_stackend - c_size, c_stack)) | |
252b5132 RH |
462 | return NULL; |
463 | ||
59d9f049 | 464 | /* .reg section for all registers. */ |
252b5132 | 465 | if (!make_bfd_asection (abfd, ".reg", |
59d9f049 ND |
466 | SEC_HAS_CONTENTS, |
467 | c_regsize, (bfd_vma) 0, c_regoff)) | |
252b5132 RH |
468 | return NULL; |
469 | ||
470 | /* .ldinfo section. | |
471 | To actually find out how long this section is in this particular | |
472 | core dump would require going down the whole list of struct ld_info's. | |
473 | See if we can just fake it. */ | |
474 | if (!make_bfd_asection (abfd, ".ldinfo", | |
59d9f049 ND |
475 | SEC_HAS_CONTENTS, |
476 | c_lsize, (bfd_vma) 0, c_loader)) | |
252b5132 RH |
477 | return NULL; |
478 | ||
479 | #ifndef CORE_VERSION_1 | |
480 | /* .data section if present. | |
481 | AIX 3 dumps the complete data section and sets FULL_CORE if the | |
482 | ulimit is large enough, otherwise the data section is omitted. | |
483 | AIX 4 sets FULL_CORE even if the core file is truncated, we have | |
59d9f049 ND |
484 | to examine core.c_datasize below to find out the actual size of |
485 | the .data section. */ | |
486 | if (c_flag & FULL_CORE) | |
252b5132 RH |
487 | { |
488 | if (!make_bfd_asection (abfd, ".data", | |
489 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
59d9f049 | 490 | (bfd_size_type) core.old.c_u.u_dsize, |
252b5132 | 491 | (bfd_vma) |
59d9f049 ND |
492 | CDATA_ADDR (core.old.c_u.u_dsize), |
493 | c_stack + c_size)) | |
252b5132 RH |
494 | return NULL; |
495 | } | |
496 | #endif | |
497 | ||
498 | #ifdef CORE_VERSION_1 | |
499 | /* AIX 4 adds data sections from loaded objects to the core file, | |
500 | which can be found by examining ldinfo, and anonymously mmapped | |
501 | regions. */ | |
502 | { | |
59d9f049 ND |
503 | LdInfo ldinfo; |
504 | bfd_size_type ldi_datasize; | |
505 | file_ptr ldi_core; | |
506 | uint ldi_next; | |
507 | bfd_vma ldi_dataorg; | |
508 | ||
509 | /* Fields from new and old core structures. */ | |
510 | bfd_size_type c_datasize, c_vmregions; | |
511 | file_ptr c_data, c_vmm; | |
512 | ||
513 | if (CORE_NEW (core)) | |
514 | { | |
515 | c_datasize = CNEW_DATASIZE (core.new); | |
516 | c_data = (file_ptr) core.new.c_data; | |
517 | c_vmregions = core.new.c_vmregions; | |
518 | c_vmm = (file_ptr) core.new.c_vmm; | |
519 | } | |
520 | else | |
521 | { | |
522 | c_datasize = core.old.c_datasize; | |
523 | c_data = (file_ptr) core.old.c_data; | |
524 | c_vmregions = core.old.c_vmregions; | |
525 | c_vmm = (file_ptr) core.old.c_vmm; | |
526 | } | |
252b5132 RH |
527 | |
528 | /* .data section from executable. */ | |
59d9f049 | 529 | if (c_datasize) |
252b5132 RH |
530 | { |
531 | if (!make_bfd_asection (abfd, ".data", | |
532 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
59d9f049 ND |
533 | c_datasize, |
534 | (bfd_vma) CDATA_ADDR (c_datasize), | |
535 | c_data)) | |
252b5132 RH |
536 | return NULL; |
537 | } | |
538 | ||
539 | /* .data sections from loaded objects. */ | |
59d9f049 ND |
540 | if (proc64) |
541 | size = (int)((LdInfo *)0)->l64.ldinfo_filename; | |
542 | else | |
543 | size = (int)((LdInfo *)0)->l32.ldinfo_filename; | |
544 | ||
252b5132 RH |
545 | while (1) |
546 | { | |
59d9f049 | 547 | if (bfd_seek (abfd, c_loader, SEEK_SET) != 0) |
252b5132 | 548 | return NULL; |
59d9f049 | 549 | if (bfd_read (&ldinfo, size, 1, abfd) != size) |
252b5132 | 550 | return NULL; |
59d9f049 ND |
551 | |
552 | if (proc64) | |
252b5132 | 553 | { |
59d9f049 ND |
554 | ldi_core = ldinfo.l64.ldinfo_core; |
555 | ldi_datasize = ldinfo.l64.ldinfo_datasize; | |
556 | ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg; | |
557 | ldi_next = ldinfo.l64.ldinfo_next; | |
558 | } | |
559 | else | |
560 | { | |
561 | ldi_core = ldinfo.l32.ldinfo_core; | |
562 | ldi_datasize = ldinfo.l32.ldinfo_datasize; | |
563 | ldi_dataorg = (bfd_vma)(long) ldinfo.l32.ldinfo_dataorg; | |
564 | ldi_next = ldinfo.l32.ldinfo_next; | |
252b5132 | 565 | } |
59d9f049 ND |
566 | |
567 | if (ldi_core) | |
568 | if (!make_bfd_asection (abfd, ".data", | |
569 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
570 | ldi_datasize, ldi_dataorg, ldi_core)) | |
571 | return NULL; | |
572 | ||
573 | if (ldi_next == 0) | |
252b5132 | 574 | break; |
59d9f049 | 575 | c_loader += ldi_next; |
252b5132 RH |
576 | } |
577 | ||
578 | /* .vmdata sections from anonymously mmapped regions. */ | |
59d9f049 | 579 | if (c_vmregions) |
252b5132 | 580 | { |
59d9f049 | 581 | bfd_size_type i; |
252b5132 | 582 | |
59d9f049 | 583 | if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0) |
252b5132 RH |
584 | return NULL; |
585 | ||
59d9f049 | 586 | for (i = 0; i < c_vmregions; i++) |
252b5132 | 587 | { |
59d9f049 ND |
588 | VmInfo vminfo; |
589 | bfd_size_type vminfo_size; | |
590 | file_ptr vminfo_offset; | |
591 | bfd_vma vminfo_addr; | |
252b5132 | 592 | |
59d9f049 ND |
593 | size = CORE_NEW (core) ? sizeof (vminfo.new) : sizeof (vminfo.old); |
594 | if (bfd_read (&vminfo, size, 1, abfd) != size) | |
252b5132 | 595 | return NULL; |
59d9f049 ND |
596 | |
597 | if (CORE_NEW (core)) | |
252b5132 | 598 | { |
59d9f049 ND |
599 | vminfo_addr = (bfd_vma) vminfo.new.vminfo_addr; |
600 | vminfo_size = vminfo.new.vminfo_size; | |
601 | vminfo_offset = vminfo.new.vminfo_offset; | |
252b5132 | 602 | } |
59d9f049 ND |
603 | else |
604 | { | |
605 | vminfo_addr = (bfd_vma)(long) vminfo.old.vminfo_addr; | |
606 | vminfo_size = vminfo.old.vminfo_size; | |
607 | vminfo_offset = vminfo.old.vminfo_offset; | |
608 | } | |
609 | ||
610 | if (vminfo_offset) | |
611 | if (!make_bfd_asection (abfd, ".vmdata", | |
612 | SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS, | |
613 | vminfo_size, vminfo_addr, | |
614 | vminfo_offset)) | |
615 | return NULL; | |
252b5132 RH |
616 | } |
617 | } | |
618 | } | |
619 | #endif | |
620 | ||
621 | return abfd->xvec; /* this is garbage for now. */ | |
622 | } | |
623 | ||
624 | ||
625 | ||
626 | /* return `true' if given core is from the given executable.. */ | |
627 | boolean | |
628 | rs6000coff_core_file_matches_executable_p (core_bfd, exec_bfd) | |
629 | bfd *core_bfd; | |
630 | bfd *exec_bfd; | |
631 | { | |
59d9f049 | 632 | CoreHdr core; |
252b5132 RH |
633 | bfd_size_type size; |
634 | char *path, *s; | |
635 | size_t alloc; | |
636 | const char *str1, *str2; | |
637 | boolean ret; | |
59d9f049 | 638 | file_ptr c_loader; |
252b5132 | 639 | |
59d9f049 | 640 | if (!read_hdr (core_bfd, &core)) |
252b5132 RH |
641 | return false; |
642 | ||
59d9f049 ND |
643 | if (CORE_NEW (core)) |
644 | c_loader = CNEW_LOADER (core.new); | |
645 | else | |
646 | c_loader = (file_ptr) COLD_LOADER (core.old); | |
252b5132 | 647 | |
59d9f049 ND |
648 | if (CORE_NEW (core) && CNEW_PROC64 (core.new)) |
649 | size = (int)((LdInfo *)0)->l64.ldinfo_filename; | |
650 | else | |
651 | size = (int)((LdInfo *)0)->l32.ldinfo_filename; | |
652 | ||
653 | if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0) | |
252b5132 RH |
654 | return false; |
655 | ||
656 | alloc = 100; | |
657 | path = bfd_malloc (alloc); | |
658 | if (path == NULL) | |
659 | return false; | |
660 | s = path; | |
661 | ||
662 | while (1) | |
663 | { | |
664 | if (bfd_read (s, 1, 1, core_bfd) != 1) | |
665 | { | |
666 | free (path); | |
667 | return false; | |
668 | } | |
669 | if (*s == '\0') | |
670 | break; | |
671 | ++s; | |
672 | if (s == path + alloc) | |
673 | { | |
674 | char *n; | |
675 | ||
676 | alloc *= 2; | |
677 | n = bfd_realloc (path, alloc); | |
678 | if (n == NULL) | |
679 | { | |
680 | free (path); | |
681 | return false; | |
682 | } | |
683 | s = n + (path - s); | |
684 | path = n; | |
685 | } | |
686 | } | |
59d9f049 | 687 | |
252b5132 RH |
688 | str1 = strrchr (path, '/'); |
689 | str2 = strrchr (exec_bfd->filename, '/'); | |
690 | ||
691 | /* step over character '/' */ | |
692 | str1 = str1 != NULL ? str1 + 1 : path; | |
693 | str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename; | |
694 | ||
695 | if (strcmp (str1, str2) == 0) | |
696 | ret = true; | |
697 | else | |
698 | ret = false; | |
699 | ||
700 | free (path); | |
701 | ||
702 | return ret; | |
703 | } | |
704 | ||
705 | char * | |
706 | rs6000coff_core_file_failing_command (abfd) | |
707 | bfd *abfd; | |
708 | { | |
59d9f049 ND |
709 | CoreHdr *core = core_hdr (abfd); |
710 | char *com = CORE_NEW (*core) ? | |
711 | CNEW_COMM (core->new) : COLD_COMM (core->old); | |
712 | ||
252b5132 RH |
713 | if (*com) |
714 | return com; | |
715 | else | |
716 | return 0; | |
717 | } | |
718 | ||
719 | int | |
720 | rs6000coff_core_file_failing_signal (abfd) | |
721 | bfd *abfd; | |
722 | { | |
59d9f049 ND |
723 | CoreHdr *core = core_hdr (abfd); |
724 | return CORE_NEW (*core) ? core->new.c_signo : core->old.c_signo; | |
252b5132 RH |
725 | } |
726 | ||
727 | #endif /* AIX_CORE */ |